conf.c revision 94337
1/* 2 * Copyright (c) 1998-2002 Sendmail, Inc. and its suppliers. 3 * All rights reserved. 4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. 5 * Copyright (c) 1988, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * By using this file, you agree to the terms and conditions set 9 * forth in the LICENSE file which can be found at the top level of 10 * the sendmail distribution. 11 * 12 */ 13 14#include <sendmail.h> 15 16SM_RCSID("@(#)$Id: conf.c,v 8.961 2002/04/04 21:32:14 gshapiro Exp $") 17 18/* $FreeBSD: head/contrib/sendmail/src/conf.c 94337 2002-04-10 03:06:22Z gshapiro $ */ 19 20#include <sendmail/pathnames.h> 21 22# include <sys/ioctl.h> 23# include <sys/param.h> 24 25#include <limits.h> 26#if NETINET || NETINET6 27# include <arpa/inet.h> 28#endif /* NETINET || NETINET6 */ 29#if HASULIMIT && defined(HPUX11) 30# include <ulimit.h> 31#endif /* HASULIMIT && defined(HPUX11) */ 32 33 34static void setupmaps __P((void)); 35static void setupmailers __P((void)); 36static void setupqueues __P((void)); 37static int get_num_procs_online __P((void)); 38 39 40/* 41** CONF.C -- Sendmail Configuration Tables. 42** 43** Defines the configuration of this installation. 44** 45** Configuration Variables: 46** HdrInfo -- a table describing well-known header fields. 47** Each entry has the field name and some flags, 48** which are described in sendmail.h. 49** 50** Notes: 51** I have tried to put almost all the reasonable 52** configuration information into the configuration 53** file read at runtime. My intent is that anything 54** here is a function of the version of UNIX you 55** are running, or is really static -- for example 56** the headers are a superset of widely used 57** protocols. If you find yourself playing with 58** this file too much, you may be making a mistake! 59*/ 60 61 62/* 63** Header info table 64** Final (null) entry contains the flags used for any other field. 65** 66** Not all of these are actually handled specially by sendmail 67** at this time. They are included as placeholders, to let 68** you know that "someday" I intend to have sendmail do 69** something with them. 70*/ 71 72struct hdrinfo HdrInfo[] = 73{ 74 /* originator fields, most to least significant */ 75 { "resent-sender", H_FROM|H_RESENT, NULL }, 76 { "resent-from", H_FROM|H_RESENT, NULL }, 77 { "resent-reply-to", H_FROM|H_RESENT, NULL }, 78 { "sender", H_FROM, NULL }, 79 { "from", H_FROM, NULL }, 80 { "reply-to", H_FROM, NULL }, 81 { "errors-to", H_FROM|H_ERRORSTO, NULL }, 82 { "full-name", H_ACHECK, NULL }, 83 { "return-receipt-to", H_RECEIPTTO, NULL }, 84 { "disposition-notification-to", H_FROM, NULL }, 85 86 /* destination fields */ 87 { "to", H_RCPT, NULL }, 88 { "resent-to", H_RCPT|H_RESENT, NULL }, 89 { "cc", H_RCPT, NULL }, 90 { "resent-cc", H_RCPT|H_RESENT, NULL }, 91 { "bcc", H_RCPT|H_BCC, NULL }, 92 { "resent-bcc", H_RCPT|H_BCC|H_RESENT, NULL }, 93 { "apparently-to", H_RCPT, NULL }, 94 95 /* message identification and control */ 96 { "message-id", 0, NULL }, 97 { "resent-message-id", H_RESENT, NULL }, 98 { "message", H_EOH, NULL }, 99 { "text", H_EOH, NULL }, 100 101 /* date fields */ 102 { "date", 0, NULL }, 103 { "resent-date", H_RESENT, NULL }, 104 105 /* trace fields */ 106 { "received", H_TRACE|H_FORCE, NULL }, 107 { "x400-received", H_TRACE|H_FORCE, NULL }, 108 { "via", H_TRACE|H_FORCE, NULL }, 109 { "mail-from", H_TRACE|H_FORCE, NULL }, 110 111 /* miscellaneous fields */ 112 { "comments", H_FORCE|H_ENCODABLE, NULL }, 113 { "return-path", H_FORCE|H_ACHECK|H_BINDLATE, NULL }, 114 { "content-transfer-encoding", H_CTE, NULL }, 115 { "content-type", H_CTYPE, NULL }, 116 { "content-length", H_ACHECK, NULL }, 117 { "subject", H_ENCODABLE, NULL }, 118 { "x-authentication-warning", H_FORCE, NULL }, 119 120 { NULL, 0, NULL } 121}; 122 123 124 125/* 126** Privacy values 127*/ 128 129struct prival PrivacyValues[] = 130{ 131 { "public", PRIV_PUBLIC }, 132 { "needmailhelo", PRIV_NEEDMAILHELO }, 133 { "needexpnhelo", PRIV_NEEDEXPNHELO }, 134 { "needvrfyhelo", PRIV_NEEDVRFYHELO }, 135 { "noexpn", PRIV_NOEXPN }, 136 { "novrfy", PRIV_NOVRFY }, 137 { "restrictexpand", PRIV_RESTRICTEXPAND }, 138 { "restrictmailq", PRIV_RESTRICTMAILQ }, 139 { "restrictqrun", PRIV_RESTRICTQRUN }, 140 { "noetrn", PRIV_NOETRN }, 141 { "noverb", PRIV_NOVERB }, 142 { "authwarnings", PRIV_AUTHWARNINGS }, 143 { "noreceipts", PRIV_NORECEIPTS }, 144 { "nobodyreturn", PRIV_NOBODYRETN }, 145 { "goaway", PRIV_GOAWAY }, 146 { NULL, 0 } 147}; 148 149/* 150** DontBlameSendmail values 151*/ 152 153struct dbsval DontBlameSendmailValues[] = 154{ 155 { "safe", DBS_SAFE }, 156 { "assumesafechown", DBS_ASSUMESAFECHOWN }, 157 { "groupwritabledirpathsafe", DBS_GROUPWRITABLEDIRPATHSAFE }, 158 { "groupwritableforwardfilesafe", 159 DBS_GROUPWRITABLEFORWARDFILESAFE }, 160 { "groupwritableincludefilesafe", 161 DBS_GROUPWRITABLEINCLUDEFILESAFE }, 162 { "groupwritablealiasfile", DBS_GROUPWRITABLEALIASFILE }, 163 { "worldwritablealiasfile", DBS_WORLDWRITABLEALIASFILE }, 164 { "forwardfileinunsafedirpath", DBS_FORWARDFILEINUNSAFEDIRPATH }, 165 { "includefileinunsafedirpath", DBS_INCLUDEFILEINUNSAFEDIRPATH }, 166 { "mapinunsafedirpath", DBS_MAPINUNSAFEDIRPATH }, 167 { "linkedaliasfileinwritabledir", 168 DBS_LINKEDALIASFILEINWRITABLEDIR }, 169 { "linkedclassfileinwritabledir", 170 DBS_LINKEDCLASSFILEINWRITABLEDIR }, 171 { "linkedforwardfileinwritabledir", 172 DBS_LINKEDFORWARDFILEINWRITABLEDIR }, 173 { "linkedincludefileinwritabledir", 174 DBS_LINKEDINCLUDEFILEINWRITABLEDIR }, 175 { "linkedmapinwritabledir", DBS_LINKEDMAPINWRITABLEDIR }, 176 { "linkedserviceswitchfileinwritabledir", 177 DBS_LINKEDSERVICESWITCHFILEINWRITABLEDIR }, 178 { "filedeliverytohardlink", DBS_FILEDELIVERYTOHARDLINK }, 179 { "filedeliverytosymlink", DBS_FILEDELIVERYTOSYMLINK }, 180 { "writemaptohardlink", DBS_WRITEMAPTOHARDLINK }, 181 { "writemaptosymlink", DBS_WRITEMAPTOSYMLINK }, 182 { "writestatstohardlink", DBS_WRITESTATSTOHARDLINK }, 183 { "writestatstosymlink", DBS_WRITESTATSTOSYMLINK }, 184 { "forwardfileingroupwritabledirpath", 185 DBS_FORWARDFILEINGROUPWRITABLEDIRPATH }, 186 { "includefileingroupwritabledirpath", 187 DBS_INCLUDEFILEINGROUPWRITABLEDIRPATH }, 188 { "classfileinunsafedirpath", DBS_CLASSFILEINUNSAFEDIRPATH }, 189 { "errorheaderinunsafedirpath", DBS_ERRORHEADERINUNSAFEDIRPATH }, 190 { "helpfileinunsafedirpath", DBS_HELPFILEINUNSAFEDIRPATH }, 191 { "forwardfileinunsafedirpathsafe", 192 DBS_FORWARDFILEINUNSAFEDIRPATHSAFE }, 193 { "includefileinunsafedirpathsafe", 194 DBS_INCLUDEFILEINUNSAFEDIRPATHSAFE }, 195 { "runprograminunsafedirpath", DBS_RUNPROGRAMINUNSAFEDIRPATH }, 196 { "runwritableprogram", DBS_RUNWRITABLEPROGRAM }, 197 { "nonrootsafeaddr", DBS_NONROOTSAFEADDR }, 198 { "truststickybit", DBS_TRUSTSTICKYBIT }, 199 { "dontwarnforwardfileinunsafedirpath", 200 DBS_DONTWARNFORWARDFILEINUNSAFEDIRPATH }, 201 { "insufficiententropy", DBS_INSUFFICIENTENTROPY }, 202 { "groupreadablesasldbfile", DBS_GROUPREADABLESASLDBFILE }, 203 { "groupwritablesasldbfile", DBS_GROUPWRITABLESASLDBFILE }, 204 { "groupwritableforwardfile", DBS_GROUPWRITABLEFORWARDFILE }, 205 { "groupwritableincludefile", DBS_GROUPWRITABLEINCLUDEFILE }, 206 { "worldwritableforwardfile", DBS_WORLDWRITABLEFORWARDFILE }, 207 { "worldwritableincludefile", DBS_WORLDWRITABLEINCLUDEFILE }, 208 { "groupreadablekeyfile", DBS_GROUPREADABLEKEYFILE }, 209#if _FFR_GROUPREADABLEAUTHINFOFILE 210 { "groupreadableadefaultauthinfofile", 211 DBS_GROUPREADABLEAUTHINFOFILE }, 212#endif /* _FFR_GROUPREADABLEAUTHINFOFILE */ 213 { NULL, 0 } 214}; 215 216/* 217** Miscellaneous stuff. 218*/ 219 220int DtableSize = 50; /* max open files; reset in 4.2bsd */ 221/* 222** SETDEFAULTS -- set default values 223** 224** Some of these must be initialized using direct code since they 225** depend on run-time values. So let's do all of them this way. 226** 227** Parameters: 228** e -- the default envelope. 229** 230** Returns: 231** none. 232** 233** Side Effects: 234** Initializes a bunch of global variables to their 235** default values. 236*/ 237 238#define MINUTES * 60 239#define HOURS * 60 MINUTES 240#define DAYS * 24 HOURS 241 242#ifndef MAXRULERECURSION 243# define MAXRULERECURSION 50 /* max ruleset recursion depth */ 244#endif /* ! MAXRULERECURSION */ 245 246void 247setdefaults(e) 248 register ENVELOPE *e; 249{ 250 int i; 251 int numprocs; 252 struct passwd *pw; 253 254 numprocs = get_num_procs_online(); 255 SpaceSub = ' '; /* option B */ 256 QueueLA = 8 * numprocs; /* option x */ 257 RefuseLA = 12 * numprocs; /* option X */ 258 WkRecipFact = 30000L; /* option y */ 259 WkClassFact = 1800L; /* option z */ 260 WkTimeFact = 90000L; /* option Z */ 261 QueueFactor = WkRecipFact * 20; /* option q */ 262#if _FFR_QUARANTINE 263 QueueMode = QM_NORMAL; /* what queue items to act upon */ 264#endif /* _FFR_QUARANTINE */ 265 FileMode = (RealUid != geteuid()) ? 0644 : 0600; 266 /* option F */ 267 QueueFileMode = (RealUid != geteuid()) ? 0644 : 0600; 268 /* option QueueFileMode */ 269 270 if (((pw = sm_getpwnam("mailnull")) != NULL && pw->pw_uid != 0) || 271 ((pw = sm_getpwnam("sendmail")) != NULL && pw->pw_uid != 0) || 272 ((pw = sm_getpwnam("daemon")) != NULL && pw->pw_uid != 0)) 273 { 274 DefUid = pw->pw_uid; /* option u */ 275 DefGid = pw->pw_gid; /* option g */ 276 DefUser = newstr(pw->pw_name); 277 } 278 else 279 { 280 DefUid = 1; /* option u */ 281 DefGid = 1; /* option g */ 282 setdefuser(); 283 } 284 TrustedUid = 0; 285 if (tTd(37, 4)) 286 sm_dprintf("setdefaults: DefUser=%s, DefUid=%d, DefGid=%d\n", 287 DefUser != NULL ? DefUser : "<1:1>", 288 (int) DefUid, (int) DefGid); 289 CheckpointInterval = 10; /* option C */ 290 MaxHopCount = 25; /* option h */ 291 set_delivery_mode(SM_FORK, e); /* option d */ 292 e->e_errormode = EM_PRINT; /* option e */ 293 e->e_qgrp = NOQGRP; 294 e->e_qdir = NOQDIR; 295 e->e_xfqgrp = NOQGRP; 296 e->e_xfqdir = NOQDIR; 297 e->e_ctime = curtime(); 298 SevenBitInput = false; /* option 7 */ 299 MaxMciCache = 1; /* option k */ 300 MciCacheTimeout = 5 MINUTES; /* option K */ 301 LogLevel = 9; /* option L */ 302#if MILTER 303 MilterLogLevel = -1; 304#endif /* MILTER */ 305 inittimeouts(NULL, false); /* option r */ 306 PrivacyFlags = PRIV_PUBLIC; /* option p */ 307 MeToo = true; /* option m */ 308 SendMIMEErrors = true; /* option f */ 309 SuperSafe = SAFE_REALLY; /* option s */ 310 clrbitmap(DontBlameSendmail); /* DontBlameSendmail option */ 311#if MIME8TO7 312 MimeMode = MM_CVTMIME|MM_PASS8BIT; /* option 8 */ 313#else /* MIME8TO7 */ 314 MimeMode = MM_PASS8BIT; 315#endif /* MIME8TO7 */ 316 for (i = 0; i < MAXTOCLASS; i++) 317 { 318 TimeOuts.to_q_return[i] = 5 DAYS; /* option T */ 319 TimeOuts.to_q_warning[i] = 0; /* option T */ 320 } 321 ServiceSwitchFile = "/etc/mail/service.switch"; 322 ServiceCacheMaxAge = (time_t) 10; 323 HostsFile = _PATH_HOSTS; 324 PidFile = newstr(_PATH_SENDMAILPID); 325 MustQuoteChars = "@,;:\\()[].'"; 326 MciInfoTimeout = 30 MINUTES; 327 MaxRuleRecursion = MAXRULERECURSION; 328 MaxAliasRecursion = 10; 329 MaxMacroRecursion = 10; 330 ColonOkInAddr = true; 331 DontLockReadFiles = true; 332 DontProbeInterfaces = DPI_PROBEALL; 333 DoubleBounceAddr = "postmaster"; 334 MaxHeadersLength = MAXHDRSLEN; 335 MaxForwardEntries = 0; 336 FastSplit = 1; 337#if SASL 338 AuthMechanisms = newstr(AUTH_MECHANISMS); 339 MaxSLBits = INT_MAX; 340#endif /* SASL */ 341#if STARTTLS 342 TLS_Srv_Opts = TLS_I_SRV; 343#endif /* STARTTLS */ 344#ifdef HESIOD_INIT 345 HesiodContext = NULL; 346#endif /* HESIOD_INIT */ 347#if NETINET6 348 /* Detect if IPv6 is available at run time */ 349 i = socket(AF_INET6, SOCK_STREAM, 0); 350 if (i >= 0) 351 { 352 InetMode = AF_INET6; 353 (void) close(i); 354 } 355 else 356 InetMode = AF_INET; 357#else /* NETINET6 */ 358 InetMode = AF_INET; 359#endif /* NETINET6 */ 360 ControlSocketName = NULL; 361 memset(&ConnectOnlyTo, '\0', sizeof ConnectOnlyTo); 362 DataFileBufferSize = 4096; 363 XscriptFileBufferSize = 4096; 364 for (i = 0; i < MAXRWSETS; i++) 365 RuleSetNames[i] = NULL; 366#if MILTER 367 InputFilters[0] = NULL; 368#endif /* MILTER */ 369 setupmaps(); 370 setupqueues(); 371 setupmailers(); 372 setupheaders(); 373} 374 375 376/* 377** SETDEFUSER -- set/reset DefUser using DefUid (for initgroups()) 378*/ 379 380void 381setdefuser() 382{ 383 struct passwd *defpwent; 384 static char defuserbuf[40]; 385 386 DefUser = defuserbuf; 387 defpwent = sm_getpwuid(DefUid); 388 (void) sm_strlcpy(defuserbuf, 389 (defpwent == NULL || defpwent->pw_name == NULL) 390 ? "nobody" : defpwent->pw_name, 391 sizeof defuserbuf); 392 if (tTd(37, 4)) 393 sm_dprintf("setdefuser: DefUid=%d, DefUser=%s\n", 394 (int) DefUid, DefUser); 395} 396/* 397** SETUPQUEUES -- initialize default queues 398** 399** The mqueue QUEUE structure gets filled in after readcf() but 400** we need something to point to now for the mailer setup, 401** which use "mqueue" as default queue. 402*/ 403 404static void 405setupqueues() 406{ 407 char buf[100]; 408 409 MaxRunnersPerQueue = 1; 410 (void) sm_strlcpy(buf, "mqueue, P=/var/spool/mqueue", sizeof buf); 411 makequeue(buf, false); 412} 413/* 414** SETUPMAILERS -- initialize default mailers 415*/ 416 417static void 418setupmailers() 419{ 420 char buf[100]; 421 422 (void) sm_strlcpy(buf, "prog, P=/bin/sh, F=lsouDq9, T=X-Unix/X-Unix/X-Unix, A=sh -c \201u", 423 sizeof buf); 424 makemailer(buf); 425 426 (void) sm_strlcpy(buf, "*file*, P=[FILE], F=lsDFMPEouq9, T=X-Unix/X-Unix/X-Unix, A=FILE \201u", 427 sizeof buf); 428 makemailer(buf); 429 430 (void) sm_strlcpy(buf, "*include*, P=/dev/null, F=su, A=INCLUDE \201u", 431 sizeof buf); 432 makemailer(buf); 433 initerrmailers(); 434} 435/* 436** SETUPMAPS -- set up map classes 437*/ 438 439#define MAPDEF(name, ext, flags, parse, open, close, lookup, store) \ 440 { \ 441 extern bool parse __P((MAP *, char *)); \ 442 extern bool open __P((MAP *, int)); \ 443 extern void close __P((MAP *)); \ 444 extern char *lookup __P((MAP *, char *, char **, int *)); \ 445 extern void store __P((MAP *, char *, char *)); \ 446 s = stab(name, ST_MAPCLASS, ST_ENTER); \ 447 s->s_mapclass.map_cname = name; \ 448 s->s_mapclass.map_ext = ext; \ 449 s->s_mapclass.map_cflags = flags; \ 450 s->s_mapclass.map_parse = parse; \ 451 s->s_mapclass.map_open = open; \ 452 s->s_mapclass.map_close = close; \ 453 s->s_mapclass.map_lookup = lookup; \ 454 s->s_mapclass.map_store = store; \ 455 } 456 457static void 458setupmaps() 459{ 460 register STAB *s; 461 462#if NEWDB 463 MAPDEF("hash", ".db", MCF_ALIASOK|MCF_REBUILDABLE, 464 map_parseargs, hash_map_open, db_map_close, 465 db_map_lookup, db_map_store); 466 467 MAPDEF("btree", ".db", MCF_ALIASOK|MCF_REBUILDABLE, 468 map_parseargs, bt_map_open, db_map_close, 469 db_map_lookup, db_map_store); 470#endif /* NEWDB */ 471 472#if NDBM 473 MAPDEF("dbm", ".dir", MCF_ALIASOK|MCF_REBUILDABLE, 474 map_parseargs, ndbm_map_open, ndbm_map_close, 475 ndbm_map_lookup, ndbm_map_store); 476#endif /* NDBM */ 477 478#if NIS 479 MAPDEF("nis", NULL, MCF_ALIASOK, 480 map_parseargs, nis_map_open, null_map_close, 481 nis_map_lookup, null_map_store); 482#endif /* NIS */ 483 484#if NISPLUS 485 MAPDEF("nisplus", NULL, MCF_ALIASOK, 486 map_parseargs, nisplus_map_open, null_map_close, 487 nisplus_map_lookup, null_map_store); 488#endif /* NISPLUS */ 489 490#if LDAPMAP 491 MAPDEF("ldap", NULL, MCF_ALIASOK|MCF_NOTPERSIST, 492 ldapmap_parseargs, ldapmap_open, ldapmap_close, 493 ldapmap_lookup, null_map_store); 494#endif /* LDAPMAP */ 495 496#if PH_MAP 497 MAPDEF("ph", NULL, MCF_NOTPERSIST, 498 ph_map_parseargs, ph_map_open, ph_map_close, 499 ph_map_lookup, null_map_store); 500#endif /* PH_MAP */ 501 502#if MAP_NSD 503 /* IRIX 6.5 nsd support */ 504 MAPDEF("nsd", NULL, MCF_ALIASOK, 505 map_parseargs, null_map_open, null_map_close, 506 nsd_map_lookup, null_map_store); 507#endif /* MAP_NSD */ 508 509#if HESIOD 510 MAPDEF("hesiod", NULL, MCF_ALIASOK|MCF_ALIASONLY, 511 map_parseargs, hes_map_open, hes_map_close, 512 hes_map_lookup, null_map_store); 513#endif /* HESIOD */ 514 515#if NETINFO 516 MAPDEF("netinfo", NULL, MCF_ALIASOK, 517 map_parseargs, ni_map_open, null_map_close, 518 ni_map_lookup, null_map_store); 519#endif /* NETINFO */ 520 521#if 0 522 MAPDEF("dns", NULL, 0, 523 dns_map_init, null_map_open, null_map_close, 524 dns_map_lookup, null_map_store); 525#endif /* 0 */ 526 527#if NAMED_BIND 528# if DNSMAP 529# if _FFR_DNSMAP_ALIASABLE 530 MAPDEF("dns", NULL, MCF_ALIASOK, 531 dns_map_parseargs, dns_map_open, null_map_close, 532 dns_map_lookup, null_map_store); 533# else /* _FFR_DNSMAP_ALIASABLE */ 534 MAPDEF("dns", NULL, 0, 535 dns_map_parseargs, dns_map_open, null_map_close, 536 dns_map_lookup, null_map_store); 537# endif /* _FFR_DNSMAP_ALIASABLE */ 538# endif /* DNSMAP */ 539#endif /* NAMED_BIND */ 540 541#if NAMED_BIND 542 /* best MX DNS lookup */ 543 MAPDEF("bestmx", NULL, MCF_OPTFILE, 544 map_parseargs, null_map_open, null_map_close, 545 bestmx_map_lookup, null_map_store); 546#endif /* NAMED_BIND */ 547 548 MAPDEF("host", NULL, 0, 549 host_map_init, null_map_open, null_map_close, 550 host_map_lookup, null_map_store); 551 552 MAPDEF("text", NULL, MCF_ALIASOK, 553 map_parseargs, text_map_open, null_map_close, 554 text_map_lookup, null_map_store); 555 556 MAPDEF("stab", NULL, MCF_ALIASOK|MCF_ALIASONLY, 557 map_parseargs, stab_map_open, null_map_close, 558 stab_map_lookup, stab_map_store); 559 560 MAPDEF("implicit", NULL, MCF_ALIASOK|MCF_ALIASONLY|MCF_REBUILDABLE, 561 map_parseargs, impl_map_open, impl_map_close, 562 impl_map_lookup, impl_map_store); 563 564 /* access to system passwd file */ 565 MAPDEF("user", NULL, MCF_OPTFILE, 566 map_parseargs, user_map_open, null_map_close, 567 user_map_lookup, null_map_store); 568 569 /* dequote map */ 570 MAPDEF("dequote", NULL, 0, 571 dequote_init, null_map_open, null_map_close, 572 dequote_map, null_map_store); 573 574#if MAP_REGEX 575 MAPDEF("regex", NULL, 0, 576 regex_map_init, null_map_open, null_map_close, 577 regex_map_lookup, null_map_store); 578#endif /* MAP_REGEX */ 579 580#if USERDB 581 /* user database */ 582 MAPDEF("userdb", ".db", 0, 583 map_parseargs, null_map_open, null_map_close, 584 udb_map_lookup, null_map_store); 585#endif /* USERDB */ 586 587 /* arbitrary programs */ 588 MAPDEF("program", NULL, MCF_ALIASOK, 589 map_parseargs, null_map_open, null_map_close, 590 prog_map_lookup, null_map_store); 591 592 /* sequenced maps */ 593 MAPDEF("sequence", NULL, MCF_ALIASOK, 594 seq_map_parse, null_map_open, null_map_close, 595 seq_map_lookup, seq_map_store); 596 597 /* switched interface to sequenced maps */ 598 MAPDEF("switch", NULL, MCF_ALIASOK, 599 map_parseargs, switch_map_open, null_map_close, 600 seq_map_lookup, seq_map_store); 601 602 /* null map lookup -- really for internal use only */ 603 MAPDEF("null", NULL, MCF_ALIASOK|MCF_OPTFILE, 604 map_parseargs, null_map_open, null_map_close, 605 null_map_lookup, null_map_store); 606 607 /* syslog map -- logs information to syslog */ 608 MAPDEF("syslog", NULL, 0, 609 syslog_map_parseargs, null_map_open, null_map_close, 610 syslog_map_lookup, null_map_store); 611 612 /* macro storage map -- rulesets can set macros */ 613 MAPDEF("macro", NULL, 0, 614 dequote_init, null_map_open, null_map_close, 615 macro_map_lookup, null_map_store); 616 617 /* arithmetic map -- add/subtract/compare */ 618 MAPDEF("arith", NULL, 0, 619 dequote_init, null_map_open, null_map_close, 620 arith_map_lookup, null_map_store); 621 622 if (tTd(38, 2)) 623 { 624 /* bogus map -- always return tempfail */ 625 MAPDEF("bogus", NULL, MCF_ALIASOK|MCF_OPTFILE, 626 map_parseargs, null_map_open, null_map_close, 627 bogus_map_lookup, null_map_store); 628 } 629} 630 631#undef MAPDEF 632/* 633** INITHOSTMAPS -- initial host-dependent maps 634** 635** This should act as an interface to any local service switch 636** provided by the host operating system. 637** 638** Parameters: 639** none 640** 641** Returns: 642** none 643** 644** Side Effects: 645** Should define maps "host" and "users" as necessary 646** for this OS. If they are not defined, they will get 647** a default value later. It should check to make sure 648** they are not defined first, since it's possible that 649** the config file has provided an override. 650*/ 651 652void 653inithostmaps() 654{ 655 register int i; 656 int nmaps; 657 char *maptype[MAXMAPSTACK]; 658 short mapreturn[MAXMAPACTIONS]; 659 char buf[MAXLINE]; 660 661 /* 662 ** Set up default hosts maps. 663 */ 664 665#if 0 666 nmaps = switch_map_find("hosts", maptype, mapreturn); 667 for (i = 0; i < nmaps; i++) 668 { 669 if (strcmp(maptype[i], "files") == 0 && 670 stab("hosts.files", ST_MAP, ST_FIND) == NULL) 671 { 672 (void) sm_strlcpy(buf, "hosts.files text -k 0 -v 1 /etc/hosts", 673 sizeof buf); 674 (void) makemapentry(buf); 675 } 676# if NAMED_BIND 677 else if (strcmp(maptype[i], "dns") == 0 && 678 stab("hosts.dns", ST_MAP, ST_FIND) == NULL) 679 { 680 (void) sm_strlcpy(buf, "hosts.dns dns A", sizeof buf); 681 (void) makemapentry(buf); 682 } 683# endif /* NAMED_BIND */ 684# if NISPLUS 685 else if (strcmp(maptype[i], "nisplus") == 0 && 686 stab("hosts.nisplus", ST_MAP, ST_FIND) == NULL) 687 { 688 (void) sm_strlcpy(buf, "hosts.nisplus nisplus -k name -v address hosts.org_dir", 689 sizeof buf); 690 (void) makemapentry(buf); 691 } 692# endif /* NISPLUS */ 693# if NIS 694 else if (strcmp(maptype[i], "nis") == 0 && 695 stab("hosts.nis", ST_MAP, ST_FIND) == NULL) 696 { 697 (void) sm_strlcpy(buf, "hosts.nis nis -k 0 -v 1 hosts.byname", 698 sizeof buf); 699 (void) makemapentry(buf); 700 } 701# endif /* NIS */ 702# if NETINFO 703 else if (strcmp(maptype[i], "netinfo") == 0 && 704 stab("hosts.netinfo", ST_MAP, ST_FIND) == NULL) 705 { 706 (void) sm_strlcpy(buf, "hosts.netinfo netinfo -v name /machines", 707 sizeof buf); 708 (void) makemapentry(buf); 709 } 710# endif /* NETINFO */ 711 } 712#endif /* 0 */ 713 714 /* 715 ** Make sure we have a host map. 716 */ 717 718 if (stab("host", ST_MAP, ST_FIND) == NULL) 719 { 720 /* user didn't initialize: set up host map */ 721 (void) sm_strlcpy(buf, "host host", sizeof buf); 722#if NAMED_BIND 723 if (ConfigLevel >= 2) 724 (void) sm_strlcat(buf, " -a. -D", sizeof buf); 725#endif /* NAMED_BIND */ 726 (void) makemapentry(buf); 727 } 728 729 /* 730 ** Set up default aliases maps 731 */ 732 733 nmaps = switch_map_find("aliases", maptype, mapreturn); 734 for (i = 0; i < nmaps; i++) 735 { 736 if (strcmp(maptype[i], "files") == 0 && 737 stab("aliases.files", ST_MAP, ST_FIND) == NULL) 738 { 739 (void) sm_strlcpy(buf, "aliases.files null", 740 sizeof buf); 741 (void) makemapentry(buf); 742 } 743#if NISPLUS 744 else if (strcmp(maptype[i], "nisplus") == 0 && 745 stab("aliases.nisplus", ST_MAP, ST_FIND) == NULL) 746 { 747 (void) sm_strlcpy(buf, "aliases.nisplus nisplus -kalias -vexpansion mail_aliases.org_dir", 748 sizeof buf); 749 (void) makemapentry(buf); 750 } 751#endif /* NISPLUS */ 752#if NIS 753 else if (strcmp(maptype[i], "nis") == 0 && 754 stab("aliases.nis", ST_MAP, ST_FIND) == NULL) 755 { 756 (void) sm_strlcpy(buf, "aliases.nis nis mail.aliases", 757 sizeof buf); 758 (void) makemapentry(buf); 759 } 760#endif /* NIS */ 761#if NETINFO 762 else if (strcmp(maptype[i], "netinfo") == 0 && 763 stab("aliases.netinfo", ST_MAP, ST_FIND) == NULL) 764 { 765 (void) sm_strlcpy(buf, "aliases.netinfo netinfo -z, /aliases", 766 sizeof buf); 767 (void) makemapentry(buf); 768 } 769#endif /* NETINFO */ 770#if HESIOD 771 else if (strcmp(maptype[i], "hesiod") == 0 && 772 stab("aliases.hesiod", ST_MAP, ST_FIND) == NULL) 773 { 774 (void) sm_strlcpy(buf, "aliases.hesiod hesiod aliases", 775 sizeof buf); 776 (void) makemapentry(buf); 777 } 778#endif /* HESIOD */ 779 } 780 if (stab("aliases", ST_MAP, ST_FIND) == NULL) 781 { 782 (void) sm_strlcpy(buf, "aliases switch aliases", sizeof buf); 783 (void) makemapentry(buf); 784 } 785 786#if 0 /* "user" map class is a better choice */ 787 /* 788 ** Set up default users maps. 789 */ 790 791 nmaps = switch_map_find("passwd", maptype, mapreturn); 792 for (i = 0; i < nmaps; i++) 793 { 794 if (strcmp(maptype[i], "files") == 0 && 795 stab("users.files", ST_MAP, ST_FIND) == NULL) 796 { 797 (void) sm_strlcpy(buf, "users.files text -m -z: -k0 -v6 /etc/passwd", 798 sizeof buf); 799 (void) makemapentry(buf); 800 } 801# if NISPLUS 802 else if (strcmp(maptype[i], "nisplus") == 0 && 803 stab("users.nisplus", ST_MAP, ST_FIND) == NULL) 804 { 805 (void) sm_strlcpy(buf, "users.nisplus nisplus -m -kname -vhome passwd.org_dir", 806 sizeof buf); 807 (void) makemapentry(buf); 808 } 809# endif /* NISPLUS */ 810# if NIS 811 else if (strcmp(maptype[i], "nis") == 0 && 812 stab("users.nis", ST_MAP, ST_FIND) == NULL) 813 { 814 (void) sm_strlcpy(buf, "users.nis nis -m passwd.byname", 815 sizeof buf); 816 (void) makemapentry(buf); 817 } 818# endif /* NIS */ 819# if HESIOD 820 else if (strcmp(maptype[i], "hesiod") == 0 && 821 stab("users.hesiod", ST_MAP, ST_FIND) == NULL) 822 { 823 (void) sm_strlcpy(buf, "users.hesiod hesiod", sizeof buf); 824 (void) makemapentry(buf); 825 } 826# endif /* HESIOD */ 827 } 828 if (stab("users", ST_MAP, ST_FIND) == NULL) 829 { 830 (void) sm_strlcpy(buf, "users switch -m passwd", sizeof buf); 831 (void) makemapentry(buf); 832 } 833#endif /* 0 */ 834} 835/* 836** SWITCH_MAP_FIND -- find the list of types associated with a map 837** 838** This is the system-dependent interface to the service switch. 839** 840** Parameters: 841** service -- the name of the service of interest. 842** maptype -- an out-array of strings containing the types 843** of access to use for this service. There can 844** be at most MAXMAPSTACK types for a single service. 845** mapreturn -- an out-array of return information bitmaps 846** for the map. 847** 848** Returns: 849** The number of map types filled in, or -1 for failure. 850** 851** Side effects: 852** Preserves errno so nothing in the routine clobbers it. 853*/ 854 855#if defined(SOLARIS) || (defined(sony_news) && defined(__svr4)) 856# define _USE_SUN_NSSWITCH_ 857#endif /* defined(SOLARIS) || (defined(sony_news) && defined(__svr4)) */ 858 859#if _FFR_HPUX_NSSWITCH 860# ifdef __hpux 861# define _USE_SUN_NSSWITCH_ 862# endif /* __hpux */ 863#endif /* _FFR_HPUX_NSSWITCH */ 864 865#ifdef _USE_SUN_NSSWITCH_ 866# include <nsswitch.h> 867#endif /* _USE_SUN_NSSWITCH_ */ 868 869#if defined(ultrix) || (defined(__osf__) && defined(__alpha)) 870# define _USE_DEC_SVC_CONF_ 871#endif /* defined(ultrix) || (defined(__osf__) && defined(__alpha)) */ 872 873#ifdef _USE_DEC_SVC_CONF_ 874# include <sys/svcinfo.h> 875#endif /* _USE_DEC_SVC_CONF_ */ 876 877int 878switch_map_find(service, maptype, mapreturn) 879 char *service; 880 char *maptype[MAXMAPSTACK]; 881 short mapreturn[MAXMAPACTIONS]; 882{ 883 int svcno = 0; 884 int save_errno = errno; 885 886#ifdef _USE_SUN_NSSWITCH_ 887 struct __nsw_switchconfig *nsw_conf; 888 enum __nsw_parse_err pserr; 889 struct __nsw_lookup *lk; 890 static struct __nsw_lookup lkp0 = 891 { "files", {1, 0, 0, 0}, NULL, NULL }; 892 static struct __nsw_switchconfig lkp_default = 893 { 0, "sendmail", 3, &lkp0 }; 894 895 for (svcno = 0; svcno < MAXMAPACTIONS; svcno++) 896 mapreturn[svcno] = 0; 897 898 if ((nsw_conf = __nsw_getconfig(service, &pserr)) == NULL) 899 lk = lkp_default.lookups; 900 else 901 lk = nsw_conf->lookups; 902 svcno = 0; 903 while (lk != NULL && svcno < MAXMAPSTACK) 904 { 905 maptype[svcno] = lk->service_name; 906 if (lk->actions[__NSW_NOTFOUND] == __NSW_RETURN) 907 mapreturn[MA_NOTFOUND] |= 1 << svcno; 908 if (lk->actions[__NSW_TRYAGAIN] == __NSW_RETURN) 909 mapreturn[MA_TRYAGAIN] |= 1 << svcno; 910 if (lk->actions[__NSW_UNAVAIL] == __NSW_RETURN) 911 mapreturn[MA_TRYAGAIN] |= 1 << svcno; 912 svcno++; 913 lk = lk->next; 914 } 915 errno = save_errno; 916 return svcno; 917#endif /* _USE_SUN_NSSWITCH_ */ 918 919#ifdef _USE_DEC_SVC_CONF_ 920 struct svcinfo *svcinfo; 921 int svc; 922 923 for (svcno = 0; svcno < MAXMAPACTIONS; svcno++) 924 mapreturn[svcno] = 0; 925 926 svcinfo = getsvc(); 927 if (svcinfo == NULL) 928 goto punt; 929 if (strcmp(service, "hosts") == 0) 930 svc = SVC_HOSTS; 931 else if (strcmp(service, "aliases") == 0) 932 svc = SVC_ALIASES; 933 else if (strcmp(service, "passwd") == 0) 934 svc = SVC_PASSWD; 935 else 936 { 937 errno = save_errno; 938 return -1; 939 } 940 for (svcno = 0; svcno < SVC_PATHSIZE && svcno < MAXMAPSTACK; svcno++) 941 { 942 switch (svcinfo->svcpath[svc][svcno]) 943 { 944 case SVC_LOCAL: 945 maptype[svcno] = "files"; 946 break; 947 948 case SVC_YP: 949 maptype[svcno] = "nis"; 950 break; 951 952 case SVC_BIND: 953 maptype[svcno] = "dns"; 954 break; 955 956# ifdef SVC_HESIOD 957 case SVC_HESIOD: 958 maptype[svcno] = "hesiod"; 959 break; 960# endif /* SVC_HESIOD */ 961 962 case SVC_LAST: 963 errno = save_errno; 964 return svcno; 965 } 966 } 967 errno = save_errno; 968 return svcno; 969#endif /* _USE_DEC_SVC_CONF_ */ 970 971#if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) 972 /* 973 ** Fall-back mechanism. 974 */ 975 976 STAB *st; 977 static time_t servicecachetime; /* time service switch was cached */ 978 time_t now = curtime(); 979 980 for (svcno = 0; svcno < MAXMAPACTIONS; svcno++) 981 mapreturn[svcno] = 0; 982 983 if ((now - servicecachetime) > (time_t) ServiceCacheMaxAge) 984 { 985 /* (re)read service switch */ 986 register SM_FILE_T *fp; 987 long sff = SFF_REGONLY|SFF_OPENASROOT|SFF_NOLOCK; 988 989 if (!bitnset(DBS_LINKEDSERVICESWITCHFILEINWRITABLEDIR, 990 DontBlameSendmail)) 991 sff |= SFF_NOWLINK; 992 993 if (ConfigFileRead) 994 servicecachetime = now; 995 fp = safefopen(ServiceSwitchFile, O_RDONLY, 0, sff); 996 if (fp != NULL) 997 { 998 char buf[MAXLINE]; 999 1000 while (sm_io_fgets(fp, SM_TIME_DEFAULT, buf, 1001 sizeof buf) != NULL) 1002 { 1003 register char *p; 1004 1005 p = strpbrk(buf, "#\n"); 1006 if (p != NULL) 1007 *p = '\0'; 1008 p = strpbrk(buf, " \t"); 1009 if (p != NULL) 1010 *p++ = '\0'; 1011 if (buf[0] == '\0') 1012 continue; 1013 if (p == NULL) 1014 { 1015 sm_syslog(LOG_ERR, NOQID, 1016 "Bad line on %.100s: %.100s", 1017 ServiceSwitchFile, 1018 buf); 1019 continue; 1020 } 1021 while (isspace(*p)) 1022 p++; 1023 if (*p == '\0') 1024 continue; 1025 1026 /* 1027 ** Find/allocate space for this service entry. 1028 ** Space for all of the service strings 1029 ** are allocated at once. This means 1030 ** that we only have to free the first 1031 ** one to free all of them. 1032 */ 1033 1034 st = stab(buf, ST_SERVICE, ST_ENTER); 1035 if (st->s_service[0] != NULL) 1036 sm_free((void *) st->s_service[0]); /* XXX */ 1037 p = newstr(p); 1038 for (svcno = 0; svcno < MAXMAPSTACK; ) 1039 { 1040 if (*p == '\0') 1041 break; 1042 st->s_service[svcno++] = p; 1043 p = strpbrk(p, " \t"); 1044 if (p == NULL) 1045 break; 1046 *p++ = '\0'; 1047 while (isspace(*p)) 1048 p++; 1049 } 1050 if (svcno < MAXMAPSTACK) 1051 st->s_service[svcno] = NULL; 1052 } 1053 (void) sm_io_close(fp, SM_TIME_DEFAULT); 1054 } 1055 } 1056 1057 /* look up entry in cache */ 1058 st = stab(service, ST_SERVICE, ST_FIND); 1059 if (st != NULL && st->s_service[0] != NULL) 1060 { 1061 /* extract data */ 1062 svcno = 0; 1063 while (svcno < MAXMAPSTACK) 1064 { 1065 maptype[svcno] = st->s_service[svcno]; 1066 if (maptype[svcno++] == NULL) 1067 break; 1068 } 1069 errno = save_errno; 1070 return --svcno; 1071 } 1072#endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ 1073 1074#if !defined(_USE_SUN_NSSWITCH_) 1075 /* if the service file doesn't work, use an absolute fallback */ 1076# ifdef _USE_DEC_SVC_CONF_ 1077 punt: 1078# endif /* _USE_DEC_SVC_CONF_ */ 1079 for (svcno = 0; svcno < MAXMAPACTIONS; svcno++) 1080 mapreturn[svcno] = 0; 1081 svcno = 0; 1082 if (strcmp(service, "aliases") == 0) 1083 { 1084 maptype[svcno++] = "files"; 1085# if defined(AUTO_NETINFO_ALIASES) && defined (NETINFO) 1086 maptype[svcno++] = "netinfo"; 1087# endif /* defined(AUTO_NETINFO_ALIASES) && defined (NETINFO) */ 1088# ifdef AUTO_NIS_ALIASES 1089# if NISPLUS 1090 maptype[svcno++] = "nisplus"; 1091# endif /* NISPLUS */ 1092# if NIS 1093 maptype[svcno++] = "nis"; 1094# endif /* NIS */ 1095# endif /* AUTO_NIS_ALIASES */ 1096 errno = save_errno; 1097 return svcno; 1098 } 1099 if (strcmp(service, "hosts") == 0) 1100 { 1101# if NAMED_BIND 1102 maptype[svcno++] = "dns"; 1103# else /* NAMED_BIND */ 1104# if defined(sun) && !defined(BSD) 1105 /* SunOS */ 1106 maptype[svcno++] = "nis"; 1107# endif /* defined(sun) && !defined(BSD) */ 1108# endif /* NAMED_BIND */ 1109# if defined(AUTO_NETINFO_HOSTS) && defined (NETINFO) 1110 maptype[svcno++] = "netinfo"; 1111# endif /* defined(AUTO_NETINFO_HOSTS) && defined (NETINFO) */ 1112 maptype[svcno++] = "files"; 1113 errno = save_errno; 1114 return svcno; 1115 } 1116 errno = save_errno; 1117 return -1; 1118#endif /* !defined(_USE_SUN_NSSWITCH_) */ 1119} 1120/* 1121** USERNAME -- return the user id of the logged in user. 1122** 1123** Parameters: 1124** none. 1125** 1126** Returns: 1127** The login name of the logged in user. 1128** 1129** Side Effects: 1130** none. 1131** 1132** Notes: 1133** The return value is statically allocated. 1134*/ 1135 1136char * 1137username() 1138{ 1139 static char *myname = NULL; 1140 extern char *getlogin(); 1141 register struct passwd *pw; 1142 1143 /* cache the result */ 1144 if (myname == NULL) 1145 { 1146 myname = getlogin(); 1147 if (myname == NULL || myname[0] == '\0') 1148 { 1149 pw = sm_getpwuid(RealUid); 1150 if (pw != NULL) 1151 myname = pw->pw_name; 1152 } 1153 else 1154 { 1155 uid_t uid = RealUid; 1156 1157 if ((pw = sm_getpwnam(myname)) == NULL || 1158 (uid != 0 && uid != pw->pw_uid)) 1159 { 1160 pw = sm_getpwuid(uid); 1161 if (pw != NULL) 1162 myname = pw->pw_name; 1163 } 1164 } 1165 if (myname == NULL || myname[0] == '\0') 1166 { 1167 syserr("554 5.3.0 Who are you?"); 1168 myname = "postmaster"; 1169 } 1170 else if (strpbrk(myname, ",;:/|\"\\") != NULL) 1171 myname = addquotes(myname, NULL); 1172 else 1173 myname = sm_pstrdup_x(myname); 1174 } 1175 return myname; 1176} 1177/* 1178** TTYPATH -- Get the path of the user's tty 1179** 1180** Returns the pathname of the user's tty. Returns NULL if 1181** the user is not logged in or if s/he has write permission 1182** denied. 1183** 1184** Parameters: 1185** none 1186** 1187** Returns: 1188** pathname of the user's tty. 1189** NULL if not logged in or write permission denied. 1190** 1191** Side Effects: 1192** none. 1193** 1194** WARNING: 1195** Return value is in a local buffer. 1196** 1197** Called By: 1198** savemail 1199*/ 1200 1201char * 1202ttypath() 1203{ 1204 struct stat stbuf; 1205 register char *pathn; 1206 extern char *ttyname(); 1207 extern char *getlogin(); 1208 1209 /* compute the pathname of the controlling tty */ 1210 if ((pathn = ttyname(2)) == NULL && (pathn = ttyname(1)) == NULL && 1211 (pathn = ttyname(0)) == NULL) 1212 { 1213 errno = 0; 1214 return NULL; 1215 } 1216 1217 /* see if we have write permission */ 1218 if (stat(pathn, &stbuf) < 0 || !bitset(S_IWOTH, stbuf.st_mode)) 1219 { 1220 errno = 0; 1221 return NULL; 1222 } 1223 1224 /* see if the user is logged in */ 1225 if (getlogin() == NULL) 1226 return NULL; 1227 1228 /* looks good */ 1229 return pathn; 1230} 1231/* 1232** CHECKCOMPAT -- check for From and To person compatible. 1233** 1234** This routine can be supplied on a per-installation basis 1235** to determine whether a person is allowed to send a message. 1236** This allows restriction of certain types of internet 1237** forwarding or registration of users. 1238** 1239** If the hosts are found to be incompatible, an error 1240** message should be given using "usrerr" and an EX_ code 1241** should be returned. You can also set to->q_status to 1242** a DSN-style status code. 1243** 1244** EF_NO_BODY_RETN can be set in e->e_flags to suppress the 1245** body during the return-to-sender function; this should be done 1246** on huge messages. This bit may already be set by the ESMTP 1247** protocol. 1248** 1249** Parameters: 1250** to -- the person being sent to. 1251** 1252** Returns: 1253** an exit status 1254** 1255** Side Effects: 1256** none (unless you include the usrerr stuff) 1257*/ 1258 1259int 1260checkcompat(to, e) 1261 register ADDRESS *to; 1262 register ENVELOPE *e; 1263{ 1264 if (tTd(49, 1)) 1265 sm_dprintf("checkcompat(to=%s, from=%s)\n", 1266 to->q_paddr, e->e_from.q_paddr); 1267 1268#ifdef EXAMPLE_CODE 1269 /* this code is intended as an example only */ 1270 register STAB *s; 1271 1272 s = stab("arpa", ST_MAILER, ST_FIND); 1273 if (s != NULL && strcmp(e->e_from.q_mailer->m_name, "local") != 0 && 1274 to->q_mailer == s->s_mailer) 1275 { 1276 usrerr("553 No ARPA mail through this machine: see your system administration"); 1277 /* e->e_flags |= EF_NO_BODY_RETN; to suppress body on return */ 1278 to->q_status = "5.7.1"; 1279 return EX_UNAVAILABLE; 1280 } 1281#endif /* EXAMPLE_CODE */ 1282 return EX_OK; 1283} 1284/* 1285** INIT_MD -- do machine dependent initializations 1286** 1287** Systems that have global modes that should be set should do 1288** them here rather than in main. 1289*/ 1290 1291#ifdef _AUX_SOURCE 1292# include <compat.h> 1293#endif /* _AUX_SOURCE */ 1294 1295#if SHARE_V1 1296# include <shares.h> 1297#endif /* SHARE_V1 */ 1298 1299void 1300init_md(argc, argv) 1301 int argc; 1302 char **argv; 1303{ 1304#ifdef _AUX_SOURCE 1305 setcompat(getcompat() | COMPAT_BSDPROT); 1306#endif /* _AUX_SOURCE */ 1307 1308#ifdef SUN_EXTENSIONS 1309 init_md_sun(); 1310#endif /* SUN_EXTENSIONS */ 1311 1312#if _CONVEX_SOURCE 1313 /* keep gethostby*() from stripping the local domain name */ 1314 set_domain_trim_off(); 1315#endif /* _CONVEX_SOURCE */ 1316#ifdef __QNX__ 1317 /* 1318 ** Due to QNX's network distributed nature, you can target a tcpip 1319 ** stack on a different node in the qnx network; this patch lets 1320 ** this feature work. The __sock_locate() must be done before the 1321 ** environment is clear. 1322 */ 1323 __sock_locate(); 1324#endif /* __QNX__ */ 1325#if SECUREWARE || defined(_SCO_unix_) 1326 set_auth_parameters(argc, argv); 1327 1328# ifdef _SCO_unix_ 1329 /* 1330 ** This is required for highest security levels (the kernel 1331 ** won't let it call set*uid() or run setuid binaries without 1332 ** it). It may be necessary on other SECUREWARE systems. 1333 */ 1334 1335 if (getluid() == -1) 1336 setluid(0); 1337# endif /* _SCO_unix_ */ 1338#endif /* SECUREWARE || defined(_SCO_unix_) */ 1339 1340 1341#ifdef VENDOR_DEFAULT 1342 VendorCode = VENDOR_DEFAULT; 1343#else /* VENDOR_DEFAULT */ 1344 VendorCode = VENDOR_BERKELEY; 1345#endif /* VENDOR_DEFAULT */ 1346} 1347/* 1348** INIT_VENDOR_MACROS -- vendor-dependent macro initializations 1349** 1350** Called once, on startup. 1351** 1352** Parameters: 1353** e -- the global envelope. 1354** 1355** Returns: 1356** none. 1357** 1358** Side Effects: 1359** vendor-dependent. 1360*/ 1361 1362void 1363init_vendor_macros(e) 1364 register ENVELOPE *e; 1365{ 1366} 1367/* 1368** GETLA -- get the current load average 1369** 1370** This code stolen from la.c. 1371** 1372** Parameters: 1373** none. 1374** 1375** Returns: 1376** The current load average as an integer. 1377** 1378** Side Effects: 1379** none. 1380*/ 1381 1382/* try to guess what style of load average we have */ 1383#define LA_ZERO 1 /* always return load average as zero */ 1384#define LA_INT 2 /* read kmem for avenrun; interpret as long */ 1385#define LA_FLOAT 3 /* read kmem for avenrun; interpret as float */ 1386#define LA_SUBR 4 /* call getloadavg */ 1387#define LA_MACH 5 /* MACH load averages (as on NeXT boxes) */ 1388#define LA_SHORT 6 /* read kmem for avenrun; interpret as short */ 1389#define LA_PROCSTR 7 /* read string ("1.17") from /proc/loadavg */ 1390#define LA_READKSYM 8 /* SVR4: use MIOC_READKSYM ioctl call */ 1391#define LA_DGUX 9 /* special DGUX implementation */ 1392#define LA_HPUX 10 /* special HPUX implementation */ 1393#define LA_IRIX6 11 /* special IRIX 6.2 implementation */ 1394#define LA_KSTAT 12 /* special Solaris kstat(3k) implementation */ 1395#define LA_DEVSHORT 13 /* read short from a device */ 1396#define LA_ALPHAOSF 14 /* Digital UNIX (OSF/1 on Alpha) table() call */ 1397#define LA_PSET 15 /* Solaris per-processor-set load average */ 1398 1399/* do guesses based on general OS type */ 1400#ifndef LA_TYPE 1401# define LA_TYPE LA_ZERO 1402#endif /* ! LA_TYPE */ 1403 1404#ifndef FSHIFT 1405# if defined(unixpc) 1406# define FSHIFT 5 1407# endif /* defined(unixpc) */ 1408 1409# if defined(__alpha) || defined(IRIX) 1410# define FSHIFT 10 1411# endif /* defined(__alpha) || defined(IRIX) */ 1412 1413#endif /* ! FSHIFT */ 1414 1415#ifndef FSHIFT 1416# define FSHIFT 8 1417#endif /* ! FSHIFT */ 1418 1419#ifndef FSCALE 1420# define FSCALE (1 << FSHIFT) 1421#endif /* ! FSCALE */ 1422 1423#ifndef LA_AVENRUN 1424# ifdef SYSTEM5 1425# define LA_AVENRUN "avenrun" 1426# else /* SYSTEM5 */ 1427# define LA_AVENRUN "_avenrun" 1428# endif /* SYSTEM5 */ 1429#endif /* ! LA_AVENRUN */ 1430 1431/* _PATH_KMEM should be defined in <paths.h> */ 1432#ifndef _PATH_KMEM 1433# define _PATH_KMEM "/dev/kmem" 1434#endif /* ! _PATH_KMEM */ 1435 1436#if (LA_TYPE == LA_INT) || (LA_TYPE == LA_FLOAT) || (LA_TYPE == LA_SHORT) 1437 1438# include <nlist.h> 1439 1440/* _PATH_UNIX should be defined in <paths.h> */ 1441# ifndef _PATH_UNIX 1442# if defined(SYSTEM5) 1443# define _PATH_UNIX "/unix" 1444# else /* defined(SYSTEM5) */ 1445# define _PATH_UNIX "/vmunix" 1446# endif /* defined(SYSTEM5) */ 1447# endif /* ! _PATH_UNIX */ 1448 1449# ifdef _AUX_SOURCE 1450struct nlist Nl[2]; 1451# else /* _AUX_SOURCE */ 1452struct nlist Nl[] = 1453{ 1454 { LA_AVENRUN }, 1455 { 0 }, 1456}; 1457# endif /* _AUX_SOURCE */ 1458# define X_AVENRUN 0 1459 1460int 1461getla() 1462{ 1463 int j; 1464 static int kmem = -1; 1465# if LA_TYPE == LA_INT 1466 long avenrun[3]; 1467# else /* LA_TYPE == LA_INT */ 1468# if LA_TYPE == LA_SHORT 1469 short avenrun[3]; 1470# else /* LA_TYPE == LA_SHORT */ 1471 double avenrun[3]; 1472# endif /* LA_TYPE == LA_SHORT */ 1473# endif /* LA_TYPE == LA_INT */ 1474 extern int errno; 1475 extern off_t lseek(); 1476 1477 if (kmem < 0) 1478 { 1479# ifdef _AUX_SOURCE 1480 (void) sm_strlcpy(Nl[X_AVENRUN].n_name, LA_AVENRUN, 1481 sizeof Nl[X_AVENRUN].n_name); 1482 Nl[1].n_name[0] = '\0'; 1483# endif /* _AUX_SOURCE */ 1484 1485# if defined(_AIX3) || defined(_AIX4) 1486 if (knlist(Nl, 1, sizeof Nl[0]) < 0) 1487# else /* defined(_AIX3) || defined(_AIX4) */ 1488 if (nlist(_PATH_UNIX, Nl) < 0) 1489# endif /* defined(_AIX3) || defined(_AIX4) */ 1490 { 1491 if (tTd(3, 1)) 1492 sm_dprintf("getla: nlist(%s): %s\n", _PATH_UNIX, 1493 sm_errstring(errno)); 1494 return -1; 1495 } 1496 if (Nl[X_AVENRUN].n_value == 0) 1497 { 1498 if (tTd(3, 1)) 1499 sm_dprintf("getla: nlist(%s, %s) ==> 0\n", 1500 _PATH_UNIX, LA_AVENRUN); 1501 return -1; 1502 } 1503# ifdef NAMELISTMASK 1504 Nl[X_AVENRUN].n_value &= NAMELISTMASK; 1505# endif /* NAMELISTMASK */ 1506 1507 kmem = open(_PATH_KMEM, 0, 0); 1508 if (kmem < 0) 1509 { 1510 if (tTd(3, 1)) 1511 sm_dprintf("getla: open(/dev/kmem): %s\n", 1512 sm_errstring(errno)); 1513 return -1; 1514 } 1515 if ((j = fcntl(kmem, F_GETFD, 0)) < 0 || 1516 fcntl(kmem, F_SETFD, j | FD_CLOEXEC) < 0) 1517 { 1518 if (tTd(3, 1)) 1519 sm_dprintf("getla: fcntl(/dev/kmem, FD_CLOEXEC): %s\n", 1520 sm_errstring(errno)); 1521 (void) close(kmem); 1522 kmem = -1; 1523 return -1; 1524 } 1525 } 1526 if (tTd(3, 20)) 1527 sm_dprintf("getla: symbol address = %#lx\n", 1528 (unsigned long) Nl[X_AVENRUN].n_value); 1529 if (lseek(kmem, (off_t) Nl[X_AVENRUN].n_value, SEEK_SET) == -1 || 1530 read(kmem, (char *) avenrun, sizeof(avenrun)) < sizeof(avenrun)) 1531 { 1532 /* thank you Ian */ 1533 if (tTd(3, 1)) 1534 sm_dprintf("getla: lseek or read: %s\n", 1535 sm_errstring(errno)); 1536 return -1; 1537 } 1538# if (LA_TYPE == LA_INT) || (LA_TYPE == LA_SHORT) 1539 if (tTd(3, 5)) 1540 { 1541# if LA_TYPE == LA_SHORT 1542 sm_dprintf("getla: avenrun = %d", avenrun[0]); 1543 if (tTd(3, 15)) 1544 sm_dprintf(", %d, %d", avenrun[1], avenrun[2]); 1545# else /* LA_TYPE == LA_SHORT */ 1546 sm_dprintf("getla: avenrun = %ld", avenrun[0]); 1547 if (tTd(3, 15)) 1548 sm_dprintf(", %ld, %ld", avenrun[1], avenrun[2]); 1549# endif /* LA_TYPE == LA_SHORT */ 1550 sm_dprintf("\n"); 1551 } 1552 if (tTd(3, 1)) 1553 sm_dprintf("getla: %d\n", 1554 (int) (avenrun[0] + FSCALE/2) >> FSHIFT); 1555 return ((int) (avenrun[0] + FSCALE/2) >> FSHIFT); 1556# else /* (LA_TYPE == LA_INT) || (LA_TYPE == LA_SHORT) */ 1557 if (tTd(3, 5)) 1558 { 1559 sm_dprintf("getla: avenrun = %g", avenrun[0]); 1560 if (tTd(3, 15)) 1561 sm_dprintf(", %g, %g", avenrun[1], avenrun[2]); 1562 sm_dprintf("\n"); 1563 } 1564 if (tTd(3, 1)) 1565 sm_dprintf("getla: %d\n", (int) (avenrun[0] +0.5)); 1566 return ((int) (avenrun[0] + 0.5)); 1567# endif /* (LA_TYPE == LA_INT) || (LA_TYPE == LA_SHORT) */ 1568} 1569 1570#endif /* (LA_TYPE == LA_INT) || (LA_TYPE == LA_FLOAT) || (LA_TYPE == LA_SHORT) */ 1571 1572#if LA_TYPE == LA_READKSYM 1573 1574# include <sys/ksym.h> 1575 1576int 1577getla() 1578{ 1579 int j; 1580 static int kmem = -1; 1581 long avenrun[3]; 1582 extern int errno; 1583 struct mioc_rksym mirk; 1584 1585 if (kmem < 0) 1586 { 1587 kmem = open("/dev/kmem", 0, 0); 1588 if (kmem < 0) 1589 { 1590 if (tTd(3, 1)) 1591 sm_dprintf("getla: open(/dev/kmem): %s\n", 1592 sm_errstring(errno)); 1593 return -1; 1594 } 1595 if ((j = fcntl(kmem, F_GETFD, 0)) < 0 || 1596 fcntl(kmem, F_SETFD, j | FD_CLOEXEC) < 0) 1597 { 1598 if (tTd(3, 1)) 1599 sm_dprintf("getla: fcntl(/dev/kmem, FD_CLOEXEC): %s\n", 1600 sm_errstring(errno)); 1601 (void) close(kmem); 1602 kmem = -1; 1603 return -1; 1604 } 1605 } 1606 mirk.mirk_symname = LA_AVENRUN; 1607 mirk.mirk_buf = avenrun; 1608 mirk.mirk_buflen = sizeof(avenrun); 1609 if (ioctl(kmem, MIOC_READKSYM, &mirk) < 0) 1610 { 1611 if (tTd(3, 1)) 1612 sm_dprintf("getla: ioctl(MIOC_READKSYM) failed: %s\n", 1613 sm_errstring(errno)); 1614 return -1; 1615 } 1616 if (tTd(3, 5)) 1617 { 1618 sm_dprintf("getla: avenrun = %d", avenrun[0]); 1619 if (tTd(3, 15)) 1620 sm_dprintf(", %d, %d", avenrun[1], avenrun[2]); 1621 sm_dprintf("\n"); 1622 } 1623 if (tTd(3, 1)) 1624 sm_dprintf("getla: %d\n", 1625 (int) (avenrun[0] + FSCALE/2) >> FSHIFT); 1626 return ((int) (avenrun[0] + FSCALE/2) >> FSHIFT); 1627} 1628 1629#endif /* LA_TYPE == LA_READKSYM */ 1630 1631#if LA_TYPE == LA_DGUX 1632 1633# include <sys/dg_sys_info.h> 1634 1635int 1636getla() 1637{ 1638 struct dg_sys_info_load_info load_info; 1639 1640 dg_sys_info((long *)&load_info, 1641 DG_SYS_INFO_LOAD_INFO_TYPE, DG_SYS_INFO_LOAD_VERSION_0); 1642 1643 if (tTd(3, 1)) 1644 sm_dprintf("getla: %d\n", (int) (load_info.one_minute + 0.5)); 1645 1646 return ((int) (load_info.one_minute + 0.5)); 1647} 1648 1649#endif /* LA_TYPE == LA_DGUX */ 1650 1651#if LA_TYPE == LA_HPUX 1652 1653/* forward declarations to keep gcc from complaining */ 1654struct pst_dynamic; 1655struct pst_status; 1656struct pst_static; 1657struct pst_vminfo; 1658struct pst_diskinfo; 1659struct pst_processor; 1660struct pst_lv; 1661struct pst_swapinfo; 1662 1663# include <sys/param.h> 1664# include <sys/pstat.h> 1665 1666int 1667getla() 1668{ 1669 struct pst_dynamic pstd; 1670 1671 if (pstat_getdynamic(&pstd, sizeof(struct pst_dynamic), 1672 (size_t) 1, 0) == -1) 1673 return 0; 1674 1675 if (tTd(3, 1)) 1676 sm_dprintf("getla: %d\n", (int) (pstd.psd_avg_1_min + 0.5)); 1677 1678 return (int) (pstd.psd_avg_1_min + 0.5); 1679} 1680 1681#endif /* LA_TYPE == LA_HPUX */ 1682 1683#if LA_TYPE == LA_SUBR 1684 1685int 1686getla() 1687{ 1688 double avenrun[3]; 1689 1690 if (getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0])) < 0) 1691 { 1692 if (tTd(3, 1)) 1693 sm_dprintf("getla: getloadavg failed: %s", 1694 sm_errstring(errno)); 1695 return -1; 1696 } 1697 if (tTd(3, 1)) 1698 sm_dprintf("getla: %d\n", (int) (avenrun[0] +0.5)); 1699 return ((int) (avenrun[0] + 0.5)); 1700} 1701 1702#endif /* LA_TYPE == LA_SUBR */ 1703 1704#if LA_TYPE == LA_MACH 1705 1706/* 1707** This has been tested on NEXTSTEP release 2.1/3.X. 1708*/ 1709 1710# if defined(NX_CURRENT_COMPILER_RELEASE) && NX_CURRENT_COMPILER_RELEASE > NX_COMPILER_RELEASE_3_0 1711# include <mach/mach.h> 1712# else /* defined(NX_CURRENT_COMPILER_RELEASE) && NX_CURRENT_COMPILER_RELEASE > NX_COMPILER_RELEASE_3_0 */ 1713# include <mach.h> 1714# endif /* defined(NX_CURRENT_COMPILER_RELEASE) && NX_CURRENT_COMPILER_RELEASE > NX_COMPILER_RELEASE_3_0 */ 1715 1716int 1717getla() 1718{ 1719 processor_set_t default_set; 1720 kern_return_t error; 1721 unsigned int info_count; 1722 struct processor_set_basic_info info; 1723 host_t host; 1724 1725 error = processor_set_default(host_self(), &default_set); 1726 if (error != KERN_SUCCESS) 1727 { 1728 if (tTd(3, 1)) 1729 sm_dprintf("getla: processor_set_default failed: %s", 1730 sm_errstring(errno)); 1731 return -1; 1732 } 1733 info_count = PROCESSOR_SET_BASIC_INFO_COUNT; 1734 if (processor_set_info(default_set, PROCESSOR_SET_BASIC_INFO, 1735 &host, (processor_set_info_t)&info, 1736 &info_count) != KERN_SUCCESS) 1737 { 1738 if (tTd(3, 1)) 1739 sm_dprintf("getla: processor_set_info failed: %s", 1740 sm_errstring(errno)); 1741 return -1; 1742 } 1743 if (tTd(3, 1)) 1744 sm_dprintf("getla: %d\n", 1745 (int) ((info.load_average + (LOAD_SCALE / 2)) / 1746 LOAD_SCALE)); 1747 return (int) (info.load_average + (LOAD_SCALE / 2)) / LOAD_SCALE; 1748} 1749 1750#endif /* LA_TYPE == LA_MACH */ 1751 1752#if LA_TYPE == LA_PROCSTR 1753# if SM_CONF_BROKEN_STRTOD 1754 ERROR: This OS has most likely a broken strtod() implemenentation. 1755 ERROR: The function is required for getla(). 1756 ERROR: Check the compilation options _LA_PROCSTR and 1757 ERROR: _SM_CONF_BROKEN_STRTOD (without the leading _). 1758# endif /* SM_CONF_BROKEN_STRTOD */ 1759 1760/* 1761** Read /proc/loadavg for the load average. This is assumed to be 1762** in a format like "0.15 0.12 0.06". 1763** 1764** Initially intended for Linux. This has been in the kernel 1765** since at least 0.99.15. 1766*/ 1767 1768# ifndef _PATH_LOADAVG 1769# define _PATH_LOADAVG "/proc/loadavg" 1770# endif /* ! _PATH_LOADAVG */ 1771 1772int 1773getla() 1774{ 1775 double avenrun; 1776 register int result; 1777 SM_FILE_T *fp; 1778 1779 fp = sm_io_open(SmFtStdio, SM_TIME_DEFAULT, _PATH_LOADAVG, SM_IO_RDONLY, 1780 NULL); 1781 if (fp == NULL) 1782 { 1783 if (tTd(3, 1)) 1784 sm_dprintf("getla: sm_io_open(%s): %s\n", 1785 _PATH_LOADAVG, sm_errstring(errno)); 1786 return -1; 1787 } 1788 result = sm_io_fscanf(fp, SM_TIME_DEFAULT, "%lf", &avenrun); 1789 (void) sm_io_close(fp, SM_TIME_DEFAULT); 1790 if (result != 1) 1791 { 1792 if (tTd(3, 1)) 1793 sm_dprintf("getla: sm_io_fscanf() = %d: %s\n", 1794 result, sm_errstring(errno)); 1795 return -1; 1796 } 1797 1798 if (tTd(3, 1)) 1799 sm_dprintf("getla(): %.2f\n", avenrun); 1800 1801 return ((int) (avenrun + 0.5)); 1802} 1803 1804#endif /* LA_TYPE == LA_PROCSTR */ 1805 1806#if LA_TYPE == LA_IRIX6 1807 1808# include <sys/sysmp.h> 1809 1810int 1811getla(void) 1812{ 1813 int j; 1814 static int kmem = -1; 1815 int avenrun[3]; 1816 1817 if (kmem < 0) 1818 { 1819 kmem = open(_PATH_KMEM, 0, 0); 1820 if (kmem < 0) 1821 { 1822 if (tTd(3, 1)) 1823 sm_dprintf("getla: open(%s): %s\n", _PATH_KMEM, 1824 sm_errstring(errno)); 1825 return -1; 1826 } 1827 if ((j = fcntl(kmem, F_GETFD, 0)) < 0 || 1828 fcntl(kmem, F_SETFD, j | FD_CLOEXEC) < 0) 1829 { 1830 if (tTd(3, 1)) 1831 sm_dprintf("getla: fcntl(/dev/kmem, FD_CLOEXEC): %s\n", 1832 sm_errstring(errno)); 1833 (void) close(kmem); 1834 kmem = -1; 1835 return -1; 1836 } 1837 } 1838 1839 if (lseek(kmem, (sysmp(MP_KERNADDR, MPKA_AVENRUN) & 0x7fffffff), SEEK_SET) == -1 || 1840 read(kmem, (char *) avenrun, sizeof(avenrun)) < sizeof(avenrun)) 1841 { 1842 if (tTd(3, 1)) 1843 sm_dprintf("getla: lseek or read: %s\n", 1844 sm_errstring(errno)); 1845 return -1; 1846 } 1847 if (tTd(3, 5)) 1848 { 1849 sm_dprintf("getla: avenrun = %ld", (long int) avenrun[0]); 1850 if (tTd(3, 15)) 1851 sm_dprintf(", %ld, %ld", 1852 (long int) avenrun[1], (long int) avenrun[2]); 1853 sm_dprintf("\n"); 1854 } 1855 1856 if (tTd(3, 1)) 1857 sm_dprintf("getla: %d\n", 1858 (int) (avenrun[0] + FSCALE/2) >> FSHIFT); 1859 return ((int) (avenrun[0] + FSCALE/2) >> FSHIFT); 1860 1861} 1862#endif /* LA_TYPE == LA_IRIX6 */ 1863 1864#if LA_TYPE == LA_KSTAT 1865 1866# include <kstat.h> 1867 1868int 1869getla() 1870{ 1871 static kstat_ctl_t *kc = NULL; 1872 static kstat_t *ksp = NULL; 1873 kstat_named_t *ksn; 1874 int la; 1875 1876 if (kc == NULL) /* if not initialized before */ 1877 kc = kstat_open(); 1878 if (kc == NULL) 1879 { 1880 if (tTd(3, 1)) 1881 sm_dprintf("getla: kstat_open(): %s\n", 1882 sm_errstring(errno)); 1883 return -1; 1884 } 1885 if (ksp == NULL) 1886 ksp = kstat_lookup(kc, "unix", 0, "system_misc"); 1887 if (ksp == NULL) 1888 { 1889 if (tTd(3, 1)) 1890 sm_dprintf("getla: kstat_lookup(): %s\n", 1891 sm_errstring(errno)); 1892 return -1; 1893 } 1894 if (kstat_read(kc, ksp, NULL) < 0) 1895 { 1896 if (tTd(3, 1)) 1897 sm_dprintf("getla: kstat_read(): %s\n", 1898 sm_errstring(errno)); 1899 return -1; 1900 } 1901 ksn = (kstat_named_t *) kstat_data_lookup(ksp, "avenrun_1min"); 1902 la = ((double) ksn->value.ul + FSCALE/2) / FSCALE; 1903 /* kstat_close(kc); /o do not close for fast access */ 1904 return la; 1905} 1906 1907#endif /* LA_TYPE == LA_KSTAT */ 1908 1909#if LA_TYPE == LA_DEVSHORT 1910 1911/* 1912** Read /dev/table/avenrun for the load average. This should contain 1913** three shorts for the 1, 5, and 15 minute loads. We only read the 1914** first, since that's all we care about. 1915** 1916** Intended for SCO OpenServer 5. 1917*/ 1918 1919# ifndef _PATH_AVENRUN 1920# define _PATH_AVENRUN "/dev/table/avenrun" 1921# endif /* ! _PATH_AVENRUN */ 1922 1923int 1924getla() 1925{ 1926 static int afd = -1; 1927 short avenrun; 1928 int loadav; 1929 int r; 1930 1931 errno = EBADF; 1932 1933 if (afd == -1 || lseek(afd, 0L, SEEK_SET) == -1) 1934 { 1935 if (errno != EBADF) 1936 return -1; 1937 afd = open(_PATH_AVENRUN, O_RDONLY|O_SYNC); 1938 if (afd < 0) 1939 { 1940 sm_syslog(LOG_ERR, NOQID, 1941 "can't open %s: %s", 1942 _PATH_AVENRUN, sm_errstring(errno)); 1943 return -1; 1944 } 1945 } 1946 1947 r = read(afd, &avenrun, sizeof avenrun); 1948 1949 if (tTd(3, 5)) 1950 sm_dprintf("getla: avenrun = %d\n", avenrun); 1951 loadav = (int) (avenrun + FSCALE/2) >> FSHIFT; 1952 if (tTd(3, 1)) 1953 sm_dprintf("getla: %d\n", loadav); 1954 return loadav; 1955} 1956 1957#endif /* LA_TYPE == LA_DEVSHORT */ 1958 1959#if LA_TYPE == LA_ALPHAOSF 1960struct rtentry; 1961struct mbuf; 1962# include <sys/table.h> 1963 1964int 1965getla() 1966{ 1967 int ave = 0; 1968 struct tbl_loadavg tab; 1969 1970 if (table(TBL_LOADAVG, 0, &tab, 1, sizeof(tab)) == -1) 1971 { 1972 if (tTd(3, 1)) 1973 sm_dprintf("getla: table %s\n", sm_errstring(errno)); 1974 return -1; 1975 } 1976 1977 if (tTd(3, 1)) 1978 sm_dprintf("getla: scale = %d\n", tab.tl_lscale); 1979 1980 if (tab.tl_lscale) 1981 ave = ((tab.tl_avenrun.l[2] + (tab.tl_lscale/2)) / 1982 tab.tl_lscale); 1983 else 1984 ave = (int) (tab.tl_avenrun.d[2] + 0.5); 1985 1986 if (tTd(3, 1)) 1987 sm_dprintf("getla: %d\n", ave); 1988 1989 return ave; 1990} 1991 1992#endif /* LA_TYPE == LA_ALPHAOSF */ 1993 1994#if LA_TYPE == LA_PSET 1995 1996int 1997getla() 1998{ 1999 double avenrun[3]; 2000 2001 if (pset_getloadavg(PS_MYID, avenrun, 2002 sizeof(avenrun) / sizeof(avenrun[0])) < 0) 2003 { 2004 if (tTd(3, 1)) 2005 sm_dprintf("getla: pset_getloadavg failed: %s", 2006 sm_errstring(errno)); 2007 return -1; 2008 } 2009 if (tTd(3, 1)) 2010 sm_dprintf("getla: %d\n", (int) (avenrun[0] +0.5)); 2011 return ((int) (avenrun[0] + 0.5)); 2012} 2013 2014#endif /* LA_TYPE == LA_PSET */ 2015 2016#if LA_TYPE == LA_ZERO 2017 2018int 2019getla() 2020{ 2021 if (tTd(3, 1)) 2022 sm_dprintf("getla: ZERO\n"); 2023 return 0; 2024} 2025 2026#endif /* LA_TYPE == LA_ZERO */ 2027 2028/* 2029 * Copyright 1989 Massachusetts Institute of Technology 2030 * 2031 * Permission to use, copy, modify, distribute, and sell this software and its 2032 * documentation for any purpose is hereby granted without fee, provided that 2033 * the above copyright notice appear in all copies and that both that 2034 * copyright notice and this permission notice appear in supporting 2035 * documentation, and that the name of M.I.T. not be used in advertising or 2036 * publicity pertaining to distribution of the software without specific, 2037 * written prior permission. M.I.T. makes no representations about the 2038 * suitability of this software for any purpose. It is provided "as is" 2039 * without express or implied warranty. 2040 * 2041 * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL 2042 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T. 2043 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 2044 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 2045 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 2046 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 2047 * 2048 * Authors: Many and varied... 2049 */ 2050 2051/* Non Apollo stuff removed by Don Lewis 11/15/93 */ 2052#ifndef lint 2053SM_UNUSED(static char rcsid[]) = "@(#)$OrigId: getloadavg.c,v 1.16 1991/06/21 12:51:15 paul Exp $"; 2054#endif /* ! lint */ 2055 2056#ifdef apollo 2057# undef volatile 2058# include <apollo/base.h> 2059 2060/* ARGSUSED */ 2061int getloadavg( call_data ) 2062 caddr_t call_data; /* pointer to (double) return value */ 2063{ 2064 double *avenrun = (double *) call_data; 2065 int i; 2066 status_$t st; 2067 long loadav[3]; 2068 2069 proc1_$get_loadav(loadav, &st); 2070 *avenrun = loadav[0] / (double) (1 << 16); 2071 return 0; 2072} 2073#endif /* apollo */ 2074/* 2075** SM_GETLA -- get the current load average 2076** 2077** Parameters: 2078** none 2079** 2080** Returns: 2081** none 2082** 2083** Side Effects: 2084** Set CurrentLA to the current load average. 2085** Set {load_avg} in GlobalMacros to the current load average. 2086*/ 2087 2088void 2089sm_getla() 2090{ 2091 char labuf[8]; 2092 2093 CurrentLA = getla(); 2094 (void) sm_snprintf(labuf, sizeof labuf, "%d", CurrentLA); 2095 macdefine(&GlobalMacros, A_TEMP, macid("{load_avg}"), labuf); 2096} 2097/* 2098** SHOULDQUEUE -- should this message be queued or sent? 2099** 2100** Compares the message cost to the load average to decide. 2101** 2102** Note: Do NOT change this API! It is documented in op.me 2103** and theoretically the user can change this function... 2104** 2105** Parameters: 2106** pri -- the priority of the message in question. 2107** ct -- the message creation time (unused, but see above). 2108** 2109** Returns: 2110** true -- if this message should be queued up for the 2111** time being. 2112** false -- if the load is low enough to send this message. 2113** 2114** Side Effects: 2115** none. 2116*/ 2117 2118/* ARGSUSED1 */ 2119bool 2120shouldqueue(pri, ct) 2121 long pri; 2122 time_t ct; 2123{ 2124 bool rval; 2125 2126 if (tTd(3, 30)) 2127 sm_dprintf("shouldqueue: CurrentLA=%d, pri=%ld: ", 2128 CurrentLA, pri); 2129 if (CurrentLA < QueueLA) 2130 { 2131 if (tTd(3, 30)) 2132 sm_dprintf("false (CurrentLA < QueueLA)\n"); 2133 return false; 2134 } 2135# if 0 /* this code is reported to cause oscillation around RefuseLA */ 2136 if (CurrentLA >= RefuseLA && QueueLA < RefuseLA) 2137 { 2138 if (tTd(3, 30)) 2139 sm_dprintf("TRUE (CurrentLA >= RefuseLA)\n"); 2140 return true; 2141 } 2142# endif /* 0 */ 2143 rval = pri > (QueueFactor / (CurrentLA - QueueLA + 1)); 2144 if (tTd(3, 30)) 2145 sm_dprintf("%s (by calculation)\n", rval ? "true" : "false"); 2146 return rval; 2147} 2148/* 2149** REFUSECONNECTIONS -- decide if connections should be refused 2150** 2151** Parameters: 2152** name -- daemon name (for error messages only) 2153** e -- the current envelope. 2154** d -- number of daemon 2155** active -- was this daemon actually active? 2156** 2157** Returns: 2158** true if incoming SMTP connections should be refused 2159** (for now). 2160** false if we should accept new work. 2161** 2162** Side Effects: 2163** Sets process title when it is rejecting connections. 2164*/ 2165 2166bool 2167refuseconnections(name, e, d, active) 2168 char *name; 2169 ENVELOPE *e; 2170 int d; 2171 bool active; 2172{ 2173 static time_t lastconn[MAXDAEMONS]; 2174 static int conncnt[MAXDAEMONS]; 2175 2176#if XLA 2177 if (!xla_smtp_ok()) 2178 return true; 2179#endif /* XLA */ 2180 2181 if (ConnRateThrottle > 0) 2182 { 2183 time_t now; 2184 2185 now = curtime(); 2186 if (active) 2187 { 2188 if (now != lastconn[d]) 2189 { 2190 lastconn[d] = now; 2191 conncnt[d] = 1; 2192 } 2193 else if (conncnt[d]++ > ConnRateThrottle) 2194 { 2195#define D_MSG_CRT "deferring connections on daemon %s: %d per second" 2196 /* sleep to flatten out connection load */ 2197 sm_setproctitle(true, e, D_MSG_CRT, 2198 name, ConnRateThrottle); 2199 if (LogLevel > 8) 2200 sm_syslog(LOG_INFO, NOQID, D_MSG_CRT, 2201 name, ConnRateThrottle); 2202 (void) sleep(1); 2203 } 2204 } 2205 else if (now != lastconn[d]) 2206 conncnt[d] = 0; 2207 } 2208 2209 sm_getla(); 2210 if (RefuseLA > 0 && CurrentLA >= RefuseLA) 2211 { 2212# define R_MSG_LA "rejecting connections on daemon %s: load average: %d" 2213 sm_setproctitle(true, e, R_MSG_LA, name, CurrentLA); 2214 if (LogLevel > 8) 2215 sm_syslog(LOG_INFO, NOQID, R_MSG_LA, name, CurrentLA); 2216 return true; 2217 } 2218 2219 if (DelayLA > 0 && CurrentLA >= DelayLA) 2220 { 2221 time_t now; 2222 static time_t log_delay = (time_t) 0; 2223 2224# define MIN_DELAY_LOG 90 /* wait before logging this again */ 2225# define D_MSG_LA "delaying connections on daemon %s: load average=%d >= %d" 2226 /* sleep to flatten out connection load */ 2227 sm_setproctitle(true, e, D_MSG_LA, name, DelayLA); 2228 if (LogLevel > 8 && (now = curtime()) > log_delay) 2229 { 2230 sm_syslog(LOG_INFO, NOQID, D_MSG_LA, 2231 name, CurrentLA, DelayLA); 2232 log_delay = now + MIN_DELAY_LOG; 2233 } 2234 (void) sleep(1); 2235 } 2236 2237 if (MaxChildren > 0 && CurChildren >= MaxChildren) 2238 { 2239 proc_list_probe(); 2240 if (CurChildren >= MaxChildren) 2241 { 2242#define R_MSG_CHILD "rejecting connections on daemon %s: %d children, max %d" 2243 sm_setproctitle(true, e, R_MSG_CHILD, 2244 name, CurChildren, MaxChildren); 2245 if (LogLevel > 8) 2246 sm_syslog(LOG_INFO, NOQID, R_MSG_CHILD, 2247 name, CurChildren, MaxChildren); 2248 return true; 2249 } 2250 } 2251 return false; 2252} 2253/* 2254** SETPROCTITLE -- set process title for ps 2255** 2256** Parameters: 2257** fmt -- a printf style format string. 2258** a, b, c -- possible parameters to fmt. 2259** 2260** Returns: 2261** none. 2262** 2263** Side Effects: 2264** Clobbers argv of our main procedure so ps(1) will 2265** display the title. 2266*/ 2267 2268#define SPT_NONE 0 /* don't use it at all */ 2269#define SPT_REUSEARGV 1 /* cover argv with title information */ 2270#define SPT_BUILTIN 2 /* use libc builtin */ 2271#define SPT_PSTAT 3 /* use pstat(PSTAT_SETCMD, ...) */ 2272#define SPT_PSSTRINGS 4 /* use PS_STRINGS->... */ 2273#define SPT_SYSMIPS 5 /* use sysmips() supported by NEWS-OS 6 */ 2274#define SPT_SCO 6 /* write kernel u. area */ 2275#define SPT_CHANGEARGV 7 /* write our own strings into argv[] */ 2276 2277#ifndef SPT_TYPE 2278# define SPT_TYPE SPT_REUSEARGV 2279#endif /* ! SPT_TYPE */ 2280 2281 2282#if SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN 2283 2284# if SPT_TYPE == SPT_PSTAT 2285# include <sys/pstat.h> 2286# endif /* SPT_TYPE == SPT_PSTAT */ 2287# if SPT_TYPE == SPT_PSSTRINGS 2288# include <machine/vmparam.h> 2289# include <sys/exec.h> 2290# ifndef PS_STRINGS /* hmmmm.... apparently not available after all */ 2291# undef SPT_TYPE 2292# define SPT_TYPE SPT_REUSEARGV 2293# else /* ! PS_STRINGS */ 2294# ifndef NKPDE /* FreeBSD 2.0 */ 2295# define NKPDE 63 2296typedef unsigned int *pt_entry_t; 2297# endif /* ! NKPDE */ 2298# endif /* ! PS_STRINGS */ 2299# endif /* SPT_TYPE == SPT_PSSTRINGS */ 2300 2301# if SPT_TYPE == SPT_PSSTRINGS || SPT_TYPE == SPT_CHANGEARGV 2302# define SETPROC_STATIC static 2303# else /* SPT_TYPE == SPT_PSSTRINGS || SPT_TYPE == SPT_CHANGEARGV */ 2304# define SETPROC_STATIC 2305# endif /* SPT_TYPE == SPT_PSSTRINGS || SPT_TYPE == SPT_CHANGEARGV */ 2306 2307# if SPT_TYPE == SPT_SYSMIPS 2308# include <sys/sysmips.h> 2309# include <sys/sysnews.h> 2310# endif /* SPT_TYPE == SPT_SYSMIPS */ 2311 2312# if SPT_TYPE == SPT_SCO 2313# include <sys/immu.h> 2314# include <sys/dir.h> 2315# include <sys/user.h> 2316# include <sys/fs/s5param.h> 2317# if PSARGSZ > MAXLINE 2318# define SPT_BUFSIZE PSARGSZ 2319# endif /* PSARGSZ > MAXLINE */ 2320# endif /* SPT_TYPE == SPT_SCO */ 2321 2322# ifndef SPT_PADCHAR 2323# define SPT_PADCHAR ' ' 2324# endif /* ! SPT_PADCHAR */ 2325 2326#endif /* SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN */ 2327 2328#ifndef SPT_BUFSIZE 2329# define SPT_BUFSIZE MAXLINE 2330#endif /* ! SPT_BUFSIZE */ 2331 2332/* 2333** Pointers for setproctitle. 2334** This allows "ps" listings to give more useful information. 2335*/ 2336 2337static char **Argv = NULL; /* pointer to argument vector */ 2338static char *LastArgv = NULL; /* end of argv */ 2339#if SPT_TYPE != SPT_BUILTIN 2340static void setproctitle __P((const char *, ...)); 2341#endif /* SPT_TYPE != SPT_BUILTIN */ 2342 2343void 2344initsetproctitle(argc, argv, envp) 2345 int argc; 2346 char **argv; 2347 char **envp; 2348{ 2349 register int i; 2350 extern char **environ; 2351 2352 /* 2353 ** Move the environment so setproctitle can use the space at 2354 ** the top of memory. 2355 */ 2356 2357 for (i = 0; envp[i] != NULL; i++) 2358 continue; 2359 environ = (char **) xalloc(sizeof (char *) * (i + 1)); 2360 for (i = 0; envp[i] != NULL; i++) 2361 environ[i] = newstr(envp[i]); 2362 environ[i] = NULL; 2363 2364 /* 2365 ** Save start and extent of argv for setproctitle. 2366 */ 2367 2368 Argv = argv; 2369 2370 /* 2371 ** Determine how much space we can use for setproctitle. 2372 ** Use all contiguous argv and envp pointers starting at argv[0] 2373 */ 2374 for (i = 0; i < argc; i++) 2375 { 2376 if (i == 0 || LastArgv + 1 == argv[i]) 2377 LastArgv = argv[i] + strlen(argv[i]); 2378 } 2379 for (i = 0; LastArgv != NULL && envp[i] != NULL; i++) 2380 { 2381 if (LastArgv + 1 == envp[i]) 2382 LastArgv = envp[i] + strlen(envp[i]); 2383 } 2384} 2385 2386#if SPT_TYPE != SPT_BUILTIN 2387 2388/*VARARGS1*/ 2389static void 2390# ifdef __STDC__ 2391setproctitle(const char *fmt, ...) 2392# else /* __STDC__ */ 2393setproctitle(fmt, va_alist) 2394 const char *fmt; 2395 va_dcl 2396# endif /* __STDC__ */ 2397{ 2398# if SPT_TYPE != SPT_NONE 2399 register int i; 2400 register char *p; 2401 SETPROC_STATIC char buf[SPT_BUFSIZE]; 2402 SM_VA_LOCAL_DECL 2403# if SPT_TYPE == SPT_PSTAT 2404 union pstun pst; 2405# endif /* SPT_TYPE == SPT_PSTAT */ 2406# if SPT_TYPE == SPT_SCO 2407 int j; 2408 off_t seek_off; 2409 static int kmem = -1; 2410 static pid_t kmempid = -1; 2411 struct user u; 2412# endif /* SPT_TYPE == SPT_SCO */ 2413 2414 p = buf; 2415 2416 /* print sendmail: heading for grep */ 2417 (void) sm_strlcpy(p, "sendmail: ", SPACELEFT(buf, p)); 2418 p += strlen(p); 2419 2420 /* print the argument string */ 2421 SM_VA_START(ap, fmt); 2422 (void) sm_vsnprintf(p, SPACELEFT(buf, p), fmt, ap); 2423 SM_VA_END(ap); 2424 2425 i = (int) strlen(buf); 2426 if (i < 0) 2427 return; 2428 2429# if SPT_TYPE == SPT_PSTAT 2430 pst.pst_command = buf; 2431 pstat(PSTAT_SETCMD, pst, i, 0, 0); 2432# endif /* SPT_TYPE == SPT_PSTAT */ 2433# if SPT_TYPE == SPT_PSSTRINGS 2434 PS_STRINGS->ps_nargvstr = 1; 2435 PS_STRINGS->ps_argvstr = buf; 2436# endif /* SPT_TYPE == SPT_PSSTRINGS */ 2437# if SPT_TYPE == SPT_SYSMIPS 2438 sysmips(SONY_SYSNEWS, NEWS_SETPSARGS, buf); 2439# endif /* SPT_TYPE == SPT_SYSMIPS */ 2440# if SPT_TYPE == SPT_SCO 2441 if (kmem < 0 || kmempid != CurrentPid) 2442 { 2443 if (kmem >= 0) 2444 (void) close(kmem); 2445 kmem = open(_PATH_KMEM, O_RDWR, 0); 2446 if (kmem < 0) 2447 return; 2448 if ((j = fcntl(kmem, F_GETFD, 0)) < 0 || 2449 fcntl(kmem, F_SETFD, j | FD_CLOEXEC) < 0) 2450 { 2451 (void) close(kmem); 2452 kmem = -1; 2453 return; 2454 } 2455 kmempid = CurrentPid; 2456 } 2457 buf[PSARGSZ - 1] = '\0'; 2458 seek_off = UVUBLK + (off_t) u.u_psargs - (off_t) &u; 2459 if (lseek(kmem, (off_t) seek_off, SEEK_SET) == seek_off) 2460 (void) write(kmem, buf, PSARGSZ); 2461# endif /* SPT_TYPE == SPT_SCO */ 2462# if SPT_TYPE == SPT_REUSEARGV 2463 if (LastArgv == NULL) 2464 return; 2465 2466 if (i > LastArgv - Argv[0] - 2) 2467 { 2468 i = LastArgv - Argv[0] - 2; 2469 buf[i] = '\0'; 2470 } 2471 (void) sm_strlcpy(Argv[0], buf, i + 1); 2472 p = &Argv[0][i]; 2473 while (p < LastArgv) 2474 *p++ = SPT_PADCHAR; 2475 Argv[1] = NULL; 2476# endif /* SPT_TYPE == SPT_REUSEARGV */ 2477# if SPT_TYPE == SPT_CHANGEARGV 2478 Argv[0] = buf; 2479 Argv[1] = 0; 2480# endif /* SPT_TYPE == SPT_CHANGEARGV */ 2481# endif /* SPT_TYPE != SPT_NONE */ 2482} 2483 2484#endif /* SPT_TYPE != SPT_BUILTIN */ 2485/* 2486** SM_SETPROCTITLE -- set process task and set process title for ps 2487** 2488** Possibly set process status and call setproctitle() to 2489** change the ps display. 2490** 2491** Parameters: 2492** status -- whether or not to store as process status 2493** e -- the current envelope. 2494** fmt -- a printf style format string. 2495** a, b, c -- possible parameters to fmt. 2496** 2497** Returns: 2498** none. 2499*/ 2500 2501/*VARARGS2*/ 2502void 2503#ifdef __STDC__ 2504sm_setproctitle(bool status, ENVELOPE *e, const char *fmt, ...) 2505#else /* __STDC__ */ 2506sm_setproctitle(status, e, fmt, va_alist) 2507 bool status; 2508 ENVELOPE *e; 2509 const char *fmt; 2510 va_dcl 2511#endif /* __STDC__ */ 2512{ 2513 char buf[SPT_BUFSIZE]; 2514 SM_VA_LOCAL_DECL 2515 2516 /* print the argument string */ 2517 SM_VA_START(ap, fmt); 2518 (void) sm_vsnprintf(buf, sizeof buf, fmt, ap); 2519 SM_VA_END(ap); 2520 2521 if (status) 2522 proc_list_set(CurrentPid, buf); 2523 2524 if (ProcTitlePrefix != NULL) 2525 { 2526 char prefix[SPT_BUFSIZE]; 2527 2528 expand(ProcTitlePrefix, prefix, sizeof prefix, e); 2529 setproctitle("%s: %s", prefix, buf); 2530 } 2531 else 2532 setproctitle("%s", buf); 2533} 2534/* 2535** WAITFOR -- wait for a particular process id. 2536** 2537** Parameters: 2538** pid -- process id to wait for. 2539** 2540** Returns: 2541** status of pid. 2542** -1 if pid never shows up. 2543** 2544** Side Effects: 2545** none. 2546*/ 2547 2548int 2549waitfor(pid) 2550 pid_t pid; 2551{ 2552 int st; 2553 pid_t i; 2554 2555 do 2556 { 2557 errno = 0; 2558 i = sm_wait(&st); 2559 if (i > 0) 2560 proc_list_drop(i, st, NULL); 2561 } while ((i >= 0 || errno == EINTR) && i != pid); 2562 if (i < 0) 2563 return -1; 2564 return st; 2565} 2566/* 2567** SM_WAIT -- wait 2568** 2569** Parameters: 2570** status -- pointer to status (return value) 2571** 2572** Returns: 2573** pid 2574*/ 2575 2576pid_t 2577sm_wait(status) 2578 int *status; 2579{ 2580# ifdef WAITUNION 2581 union wait st; 2582# else /* WAITUNION */ 2583 auto int st; 2584# endif /* WAITUNION */ 2585 pid_t i; 2586# if defined(ISC_UNIX) || defined(_SCO_unix_) 2587 int savesig; 2588# endif /* defined(ISC_UNIX) || defined(_SCO_unix_) */ 2589 2590# if defined(ISC_UNIX) || defined(_SCO_unix_) 2591 savesig = sm_releasesignal(SIGCHLD); 2592# endif /* defined(ISC_UNIX) || defined(_SCO_unix_) */ 2593 i = wait(&st); 2594# if defined(ISC_UNIX) || defined(_SCO_unix_) 2595 if (savesig > 0) 2596 sm_blocksignal(SIGCHLD); 2597# endif /* defined(ISC_UNIX) || defined(_SCO_unix_) */ 2598# ifdef WAITUNION 2599 *status = st.w_status; 2600# else /* WAITUNION */ 2601 *status = st; 2602# endif /* WAITUNION */ 2603 return i; 2604} 2605/* 2606** REAPCHILD -- pick up the body of my child, lest it become a zombie 2607** 2608** Parameters: 2609** sig -- the signal that got us here (unused). 2610** 2611** Returns: 2612** none. 2613** 2614** Side Effects: 2615** Picks up extant zombies. 2616** Control socket exits may restart/shutdown daemon. 2617** 2618** NOTE: THIS CAN BE CALLED FROM A SIGNAL HANDLER. DO NOT ADD 2619** ANYTHING TO THIS ROUTINE UNLESS YOU KNOW WHAT YOU ARE 2620** DOING. 2621*/ 2622 2623/* ARGSUSED0 */ 2624SIGFUNC_DECL 2625reapchild(sig) 2626 int sig; 2627{ 2628 int m = 0; 2629 int save_errno = errno; 2630 int st; 2631 pid_t pid; 2632# if HASWAITPID 2633 auto int status; 2634 int count; 2635 2636 count = 0; 2637 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) 2638 { 2639 st = status; 2640 if (count++ > 1000) 2641 break; 2642# else /* HASWAITPID */ 2643# ifdef WNOHANG 2644 union wait status; 2645 2646 while ((pid = wait3(&status, WNOHANG, (struct rusage *) NULL)) > 0) 2647 { 2648 st = status.w_status; 2649# else /* WNOHANG */ 2650 auto int status; 2651 2652 /* 2653 ** Catch one zombie -- we will be re-invoked (we hope) if there 2654 ** are more. Unreliable signals probably break this, but this 2655 ** is the "old system" situation -- waitpid or wait3 are to be 2656 ** strongly preferred. 2657 */ 2658 2659 if ((pid = wait(&status)) > 0) 2660 { 2661 st = status; 2662# endif /* WNOHANG */ 2663# endif /* HASWAITPID */ 2664 /* Drop PID and check if it was a control socket child */ 2665 proc_list_drop(pid, st, NULL); 2666 CurRunners -= m; /* Update */ 2667 } 2668 FIX_SYSV_SIGNAL(sig, reapchild); 2669 errno = save_errno; 2670 return SIGFUNC_RETURN; 2671} 2672/* 2673** GETDTABLESIZE -- return number of file descriptors 2674** 2675** Only on non-BSD systems 2676** 2677** Parameters: 2678** none 2679** 2680** Returns: 2681** size of file descriptor table 2682** 2683** Side Effects: 2684** none 2685*/ 2686 2687#ifdef SOLARIS 2688# include <sys/resource.h> 2689#endif /* SOLARIS */ 2690 2691int 2692getdtsize() 2693{ 2694# ifdef RLIMIT_NOFILE 2695 struct rlimit rl; 2696 2697 if (getrlimit(RLIMIT_NOFILE, &rl) >= 0) 2698 return rl.rlim_cur; 2699# endif /* RLIMIT_NOFILE */ 2700 2701# if HASGETDTABLESIZE 2702 return getdtablesize(); 2703# else /* HASGETDTABLESIZE */ 2704# ifdef _SC_OPEN_MAX 2705 return sysconf(_SC_OPEN_MAX); 2706# else /* _SC_OPEN_MAX */ 2707 return NOFILE; 2708# endif /* _SC_OPEN_MAX */ 2709# endif /* HASGETDTABLESIZE */ 2710} 2711/* 2712** UNAME -- get the UUCP name of this system. 2713*/ 2714 2715#if !HASUNAME 2716 2717int 2718uname(name) 2719 struct utsname *name; 2720{ 2721 SM_FILE_T *file; 2722 char *n; 2723 2724 name->nodename[0] = '\0'; 2725 2726 /* try /etc/whoami -- one line with the node name */ 2727 if ((file = sm_io_open(SmFtStdio, SM_TIME_DEFAULT, "/etc/whoami", 2728 SM_IO_RDONLY, NULL)) != NULL) 2729 { 2730 (void) sm_io_fgets(file, SM_TIME_DEFAULT, name->nodename, 2731 NODE_LENGTH + 1); 2732 (void) sm_io_close(file, SM_TIME_DEFAULT); 2733 n = strchr(name->nodename, '\n'); 2734 if (n != NULL) 2735 *n = '\0'; 2736 if (name->nodename[0] != '\0') 2737 return 0; 2738 } 2739 2740 /* try /usr/include/whoami.h -- has a #define somewhere */ 2741 if ((file = sm_io_open(SmFtStdio, SM_TIME_DEFAULT, 2742 "/usr/include/whoami.h", SM_IO_RDONLY, NULL)) 2743 != NULL) 2744 { 2745 char buf[MAXLINE]; 2746 2747 while (sm_io_fgets(file, SM_TIME_DEFAULT, buf, MAXLINE) != NULL) 2748 { 2749 if (sm_io_sscanf(buf, "#define sysname \"%*[^\"]\"", 2750 NODE_LENGTH, name->nodename) > 0) 2751 break; 2752 } 2753 (void) sm_io_close(file, SM_TIME_DEFAULT); 2754 if (name->nodename[0] != '\0') 2755 return 0; 2756 } 2757 2758# if 0 2759 /* 2760 ** Popen is known to have security holes. 2761 */ 2762 2763 /* try uuname -l to return local name */ 2764 if ((file = popen("uuname -l", "r")) != NULL) 2765 { 2766 (void) sm_io_fgets(file, SM_TIME_DEFAULT, name, 2767 NODE_LENGTH + 1); 2768 (void) pclose(file); 2769 n = strchr(name, '\n'); 2770 if (n != NULL) 2771 *n = '\0'; 2772 if (name->nodename[0] != '\0') 2773 return 0; 2774 } 2775# endif /* 0 */ 2776 2777 return -1; 2778} 2779#endif /* !HASUNAME */ 2780/* 2781** INITGROUPS -- initialize groups 2782** 2783** Stub implementation for System V style systems 2784*/ 2785 2786#if !HASINITGROUPS 2787 2788initgroups(name, basegid) 2789 char *name; 2790 int basegid; 2791{ 2792 return 0; 2793} 2794 2795#endif /* !HASINITGROUPS */ 2796/* 2797** SETGROUPS -- set group list 2798** 2799** Stub implementation for systems that don't have group lists 2800*/ 2801 2802#ifndef NGROUPS_MAX 2803 2804int 2805setgroups(ngroups, grouplist) 2806 int ngroups; 2807 GIDSET_T grouplist[]; 2808{ 2809 return 0; 2810} 2811 2812#endif /* ! NGROUPS_MAX */ 2813/* 2814** SETSID -- set session id (for non-POSIX systems) 2815*/ 2816 2817#if !HASSETSID 2818 2819pid_t 2820setsid __P ((void)) 2821{ 2822# ifdef TIOCNOTTY 2823 int fd; 2824 2825 fd = open("/dev/tty", O_RDWR, 0); 2826 if (fd >= 0) 2827 { 2828 (void) ioctl(fd, TIOCNOTTY, (char *) 0); 2829 (void) close(fd); 2830 } 2831# endif /* TIOCNOTTY */ 2832# ifdef SYS5SETPGRP 2833 return setpgrp(); 2834# else /* SYS5SETPGRP */ 2835 return setpgid(0, CurrentPid); 2836# endif /* SYS5SETPGRP */ 2837} 2838 2839#endif /* !HASSETSID */ 2840/* 2841** FSYNC -- dummy fsync 2842*/ 2843 2844#if NEEDFSYNC 2845 2846fsync(fd) 2847 int fd; 2848{ 2849# ifdef O_SYNC 2850 return fcntl(fd, F_SETFL, O_SYNC); 2851# else /* O_SYNC */ 2852 /* nothing we can do */ 2853 return 0; 2854# endif /* O_SYNC */ 2855} 2856 2857#endif /* NEEDFSYNC */ 2858/* 2859** DGUX_INET_ADDR -- inet_addr for DG/UX 2860** 2861** Data General DG/UX version of inet_addr returns a struct in_addr 2862** instead of a long. This patches things. Only needed on versions 2863** prior to 5.4.3. 2864*/ 2865 2866#ifdef DGUX_5_4_2 2867 2868# undef inet_addr 2869 2870long 2871dgux_inet_addr(host) 2872 char *host; 2873{ 2874 struct in_addr haddr; 2875 2876 haddr = inet_addr(host); 2877 return haddr.s_addr; 2878} 2879 2880#endif /* DGUX_5_4_2 */ 2881/* 2882** GETOPT -- for old systems or systems with bogus implementations 2883*/ 2884 2885#if !SM_CONF_GETOPT 2886 2887/* 2888 * Copyright (c) 1985 Regents of the University of California. 2889 * All rights reserved. The Berkeley software License Agreement 2890 * specifies the terms and conditions for redistribution. 2891 */ 2892 2893 2894/* 2895** this version hacked to add `atend' flag to allow state machine 2896** to reset if invoked by the program to scan args for a 2nd time 2897*/ 2898 2899# if defined(LIBC_SCCS) && !defined(lint) 2900static char sccsid[] = "@(#)getopt.c 4.3 (Berkeley) 3/9/86"; 2901# endif /* defined(LIBC_SCCS) && !defined(lint) */ 2902 2903/* 2904** get option letter from argument vector 2905*/ 2906# ifdef _CONVEX_SOURCE 2907extern int optind, opterr, optopt; 2908extern char *optarg; 2909# else /* _CONVEX_SOURCE */ 2910int opterr = 1; /* if error message should be printed */ 2911int optind = 1; /* index into parent argv vector */ 2912int optopt = 0; /* character checked for validity */ 2913char *optarg = NULL; /* argument associated with option */ 2914# endif /* _CONVEX_SOURCE */ 2915 2916# define BADCH (int)'?' 2917# define EMSG "" 2918# define tell(s) if (opterr) \ 2919 {sm_io_fputs(smioerr, SM_TIME_DEFAULT, *nargv); \ 2920 (void) sm_io_fputs(smioerr, SM_TIME_DEFAULT, s); \ 2921 (void) sm_io_putc(smioerr, SM_TIME_DEFAULT, optopt); \ 2922 (void) sm_io_putc(smioerr, SM_TIME_DEFAULT, '\n'); \ 2923 return BADCH;} 2924 2925int 2926getopt(nargc,nargv,ostr) 2927 int nargc; 2928 char *const *nargv; 2929 const char *ostr; 2930{ 2931 static char *place = EMSG; /* option letter processing */ 2932 static char atend = 0; 2933 register char *oli = NULL; /* option letter list index */ 2934 2935 if (atend) { 2936 atend = 0; 2937 place = EMSG; 2938 } 2939 if(!*place) { /* update scanning pointer */ 2940 if (optind >= nargc || *(place = nargv[optind]) != '-' || !*++place) { 2941 atend++; 2942 return -1; 2943 } 2944 if (*place == '-') { /* found "--" */ 2945 ++optind; 2946 atend++; 2947 return -1; 2948 } 2949 } /* option letter okay? */ 2950 if ((optopt = (int)*place++) == (int)':' || !(oli = strchr(ostr,optopt))) { 2951 if (!*place) ++optind; 2952 tell(": illegal option -- "); 2953 } 2954 if (oli && *++oli != ':') { /* don't need argument */ 2955 optarg = NULL; 2956 if (!*place) ++optind; 2957 } 2958 else { /* need an argument */ 2959 if (*place) optarg = place; /* no white space */ 2960 else if (nargc <= ++optind) { /* no arg */ 2961 place = EMSG; 2962 tell(": option requires an argument -- "); 2963 } 2964 else optarg = nargv[optind]; /* white space */ 2965 place = EMSG; 2966 ++optind; 2967 } 2968 return optopt; /* dump back option letter */ 2969} 2970 2971#endif /* !SM_CONF_GETOPT */ 2972/* 2973** USERSHELLOK -- tell if a user's shell is ok for unrestricted use 2974** 2975** Parameters: 2976** user -- the name of the user we are checking. 2977** shell -- the user's shell from /etc/passwd 2978** 2979** Returns: 2980** true -- if it is ok to use this for unrestricted access. 2981** false -- if the shell is restricted. 2982*/ 2983 2984#if !HASGETUSERSHELL 2985 2986# ifndef _PATH_SHELLS 2987# define _PATH_SHELLS "/etc/shells" 2988# endif /* ! _PATH_SHELLS */ 2989 2990# if defined(_AIX3) || defined(_AIX4) 2991# include <userconf.h> 2992# if _AIX4 >= 40200 2993# include <userpw.h> 2994# endif /* _AIX4 >= 40200 */ 2995# include <usersec.h> 2996# endif /* defined(_AIX3) || defined(_AIX4) */ 2997 2998static char *DefaultUserShells[] = 2999{ 3000 "/bin/sh", /* standard shell */ 3001# ifdef MPE 3002 "/SYS/PUB/CI", 3003# else /* MPE */ 3004 "/usr/bin/sh", 3005 "/bin/csh", /* C shell */ 3006 "/usr/bin/csh", 3007# endif /* MPE */ 3008# ifdef __hpux 3009# ifdef V4FS 3010 "/usr/bin/rsh", /* restricted Bourne shell */ 3011 "/usr/bin/ksh", /* Korn shell */ 3012 "/usr/bin/rksh", /* restricted Korn shell */ 3013 "/usr/bin/pam", 3014 "/usr/bin/keysh", /* key shell (extended Korn shell) */ 3015 "/usr/bin/posix/sh", 3016# else /* V4FS */ 3017 "/bin/rsh", /* restricted Bourne shell */ 3018 "/bin/ksh", /* Korn shell */ 3019 "/bin/rksh", /* restricted Korn shell */ 3020 "/bin/pam", 3021 "/usr/bin/keysh", /* key shell (extended Korn shell) */ 3022 "/bin/posix/sh", 3023 "/sbin/sh" 3024# endif /* V4FS */ 3025# endif /* __hpux */ 3026# if defined(_AIX3) || defined(_AIX4) 3027 "/bin/ksh", /* Korn shell */ 3028 "/usr/bin/ksh", 3029 "/bin/tsh", /* trusted shell */ 3030 "/usr/bin/tsh", 3031 "/bin/bsh", /* Bourne shell */ 3032 "/usr/bin/bsh", 3033# endif /* defined(_AIX3) || defined(_AIX4) */ 3034# if defined(__svr4__) || defined(__svr5__) 3035 "/bin/ksh", /* Korn shell */ 3036 "/usr/bin/ksh", 3037# endif /* defined(__svr4__) || defined(__svr5__) */ 3038# ifdef sgi 3039 "/sbin/sh", /* SGI's shells really live in /sbin */ 3040 "/sbin/csh", 3041 "/bin/ksh", /* Korn shell */ 3042 "/sbin/ksh", 3043 "/usr/bin/ksh", 3044 "/bin/tcsh", /* Extended csh */ 3045 "/usr/bin/tcsh", 3046# endif /* sgi */ 3047 NULL 3048}; 3049 3050#endif /* !HASGETUSERSHELL */ 3051 3052#define WILDCARD_SHELL "/SENDMAIL/ANY/SHELL/" 3053 3054bool 3055usershellok(user, shell) 3056 char *user; 3057 char *shell; 3058{ 3059# if HASGETUSERSHELL 3060 register char *p; 3061 extern char *getusershell(); 3062 3063 if (shell == NULL || shell[0] == '\0' || wordinclass(user, 't') || 3064 ConfigLevel <= 1) 3065 return true; 3066 3067 setusershell(); 3068 while ((p = getusershell()) != NULL) 3069 if (strcmp(p, shell) == 0 || strcmp(p, WILDCARD_SHELL) == 0) 3070 break; 3071 endusershell(); 3072 return p != NULL; 3073# else /* HASGETUSERSHELL */ 3074# if USEGETCONFATTR 3075 auto char *v; 3076# endif /* USEGETCONFATTR */ 3077 register SM_FILE_T *shellf; 3078 char buf[MAXLINE]; 3079 3080 if (shell == NULL || shell[0] == '\0' || wordinclass(user, 't') || 3081 ConfigLevel <= 1) 3082 return true; 3083 3084# if USEGETCONFATTR 3085 /* 3086 ** Naturally IBM has a "better" idea..... 3087 ** 3088 ** What a crock. This interface isn't documented, it is 3089 ** considered part of the security library (-ls), and it 3090 ** only works if you are running as root (since the list 3091 ** of valid shells is obviously a source of great concern). 3092 ** I recommend that you do NOT define USEGETCONFATTR, 3093 ** especially since you are going to have to set up an 3094 ** /etc/shells anyhow to handle the cases where getconfattr 3095 ** fails. 3096 */ 3097 3098 if (getconfattr(SC_SYS_LOGIN, SC_SHELLS, &v, SEC_LIST) == 0 && v != NULL) 3099 { 3100 while (*v != '\0') 3101 { 3102 if (strcmp(v, shell) == 0 || strcmp(v, WILDCARD_SHELL) == 0) 3103 return true; 3104 v += strlen(v) + 1; 3105 } 3106 return false; 3107 } 3108# endif /* USEGETCONFATTR */ 3109 3110 shellf = sm_io_open(SmFtStdio, SM_TIME_DEFAULT, _PATH_SHELLS, 3111 SM_IO_RDONLY, NULL); 3112 if (shellf == NULL) 3113 { 3114 /* no /etc/shells; see if it is one of the std shells */ 3115 char **d; 3116 3117 if (errno != ENOENT && LogLevel > 3) 3118 sm_syslog(LOG_ERR, NOQID, 3119 "usershellok: cannot open %s: %s", 3120 _PATH_SHELLS, sm_errstring(errno)); 3121 3122 for (d = DefaultUserShells; *d != NULL; d++) 3123 { 3124 if (strcmp(shell, *d) == 0) 3125 return true; 3126 } 3127 return false; 3128 } 3129 3130 while (sm_io_fgets(shellf, SM_TIME_DEFAULT, buf, sizeof buf) != NULL) 3131 { 3132 register char *p, *q; 3133 3134 p = buf; 3135 while (*p != '\0' && *p != '#' && *p != '/') 3136 p++; 3137 if (*p == '#' || *p == '\0') 3138 continue; 3139 q = p; 3140 while (*p != '\0' && *p != '#' && !(isascii(*p) && isspace(*p))) 3141 p++; 3142 *p = '\0'; 3143 if (strcmp(shell, q) == 0 || strcmp(WILDCARD_SHELL, q) == 0) 3144 { 3145 (void) sm_io_close(shellf, SM_TIME_DEFAULT); 3146 return true; 3147 } 3148 } 3149 (void) sm_io_close(shellf, SM_TIME_DEFAULT); 3150 return false; 3151# endif /* HASGETUSERSHELL */ 3152} 3153/* 3154** FREEDISKSPACE -- see how much free space is on the queue filesystem 3155** 3156** Only implemented if you have statfs. 3157** 3158** Parameters: 3159** dir -- the directory in question. 3160** bsize -- a variable into which the filesystem 3161** block size is stored. 3162** 3163** Returns: 3164** The number of blocks free on the queue filesystem. 3165** -1 if the statfs call fails. 3166** 3167** Side effects: 3168** Puts the filesystem block size into bsize. 3169*/ 3170 3171/* statfs types */ 3172# define SFS_NONE 0 /* no statfs implementation */ 3173# define SFS_USTAT 1 /* use ustat */ 3174# define SFS_4ARGS 2 /* use four-argument statfs call */ 3175# define SFS_VFS 3 /* use <sys/vfs.h> implementation */ 3176# define SFS_MOUNT 4 /* use <sys/mount.h> implementation */ 3177# define SFS_STATFS 5 /* use <sys/statfs.h> implementation */ 3178# define SFS_STATVFS 6 /* use <sys/statvfs.h> implementation */ 3179 3180# ifndef SFS_TYPE 3181# define SFS_TYPE SFS_NONE 3182# endif /* ! SFS_TYPE */ 3183 3184# if SFS_TYPE == SFS_USTAT 3185# include <ustat.h> 3186# endif /* SFS_TYPE == SFS_USTAT */ 3187# if SFS_TYPE == SFS_4ARGS || SFS_TYPE == SFS_STATFS 3188# include <sys/statfs.h> 3189# endif /* SFS_TYPE == SFS_4ARGS || SFS_TYPE == SFS_STATFS */ 3190# if SFS_TYPE == SFS_VFS 3191# include <sys/vfs.h> 3192# endif /* SFS_TYPE == SFS_VFS */ 3193# if SFS_TYPE == SFS_MOUNT 3194# include <sys/mount.h> 3195# endif /* SFS_TYPE == SFS_MOUNT */ 3196# if SFS_TYPE == SFS_STATVFS 3197# include <sys/statvfs.h> 3198# endif /* SFS_TYPE == SFS_STATVFS */ 3199 3200long 3201freediskspace(dir, bsize) 3202 char *dir; 3203 long *bsize; 3204{ 3205# if SFS_TYPE == SFS_NONE 3206 if (bsize != NULL) 3207 *bsize = 4096L; 3208 3209 /* assume free space is plentiful */ 3210 return (long) LONG_MAX; 3211# else /* SFS_TYPE == SFS_NONE */ 3212# if SFS_TYPE == SFS_USTAT 3213 struct ustat fs; 3214 struct stat statbuf; 3215# define FSBLOCKSIZE DEV_BSIZE 3216# define SFS_BAVAIL f_tfree 3217# else /* SFS_TYPE == SFS_USTAT */ 3218# if defined(ultrix) 3219 struct fs_data fs; 3220# define SFS_BAVAIL fd_bfreen 3221# define FSBLOCKSIZE 1024L 3222# else /* defined(ultrix) */ 3223# if SFS_TYPE == SFS_STATVFS 3224 struct statvfs fs; 3225# define FSBLOCKSIZE fs.f_frsize 3226# else /* SFS_TYPE == SFS_STATVFS */ 3227 struct statfs fs; 3228# define FSBLOCKSIZE fs.f_bsize 3229# endif /* SFS_TYPE == SFS_STATVFS */ 3230# endif /* defined(ultrix) */ 3231# endif /* SFS_TYPE == SFS_USTAT */ 3232# ifndef SFS_BAVAIL 3233# define SFS_BAVAIL f_bavail 3234# endif /* ! SFS_BAVAIL */ 3235 3236# if SFS_TYPE == SFS_USTAT 3237 if (stat(dir, &statbuf) == 0 && ustat(statbuf.st_dev, &fs) == 0) 3238# else /* SFS_TYPE == SFS_USTAT */ 3239# if SFS_TYPE == SFS_4ARGS 3240 if (statfs(dir, &fs, sizeof fs, 0) == 0) 3241# else /* SFS_TYPE == SFS_4ARGS */ 3242# if SFS_TYPE == SFS_STATVFS 3243 if (statvfs(dir, &fs) == 0) 3244# else /* SFS_TYPE == SFS_STATVFS */ 3245# if defined(ultrix) 3246 if (statfs(dir, &fs) > 0) 3247# else /* defined(ultrix) */ 3248 if (statfs(dir, &fs) == 0) 3249# endif /* defined(ultrix) */ 3250# endif /* SFS_TYPE == SFS_STATVFS */ 3251# endif /* SFS_TYPE == SFS_4ARGS */ 3252# endif /* SFS_TYPE == SFS_USTAT */ 3253 { 3254 if (bsize != NULL) 3255 *bsize = FSBLOCKSIZE; 3256 if (fs.SFS_BAVAIL <= 0) 3257 return 0; 3258 else if (fs.SFS_BAVAIL > LONG_MAX) 3259 return (long) LONG_MAX; 3260 else 3261 return (long) fs.SFS_BAVAIL; 3262 } 3263 return -1; 3264# endif /* SFS_TYPE == SFS_NONE */ 3265} 3266/* 3267** ENOUGHDISKSPACE -- is there enough free space on the queue file systems? 3268** 3269** Parameters: 3270** msize -- the size to check against. If zero, we don't yet 3271** know how big the message will be, so just check for 3272** a "reasonable" amount. 3273** e -- envelope, or NULL -- controls logging 3274** 3275** Returns: 3276** true if in every queue group there is at least one 3277** queue directory whose file system contains enough free space. 3278** false otherwise. 3279** 3280** Side Effects: 3281** If there is not enough disk space and e != NULL 3282** then sm_syslog is called. 3283*/ 3284 3285bool 3286enoughdiskspace(msize, e) 3287 long msize; 3288 ENVELOPE *e; 3289{ 3290 int i; 3291 3292 if (MinBlocksFree <= 0 && msize <= 0) 3293 { 3294 if (tTd(4, 80)) 3295 sm_dprintf("enoughdiskspace: no threshold\n"); 3296 return true; 3297 } 3298 3299 filesys_update(); 3300 for (i = 0; i < NumQueue; ++i) 3301 { 3302 if (pickqdir(Queue[i], msize, e) < 0) 3303 return false; 3304 } 3305 return true; 3306} 3307/* 3308** TRANSIENTERROR -- tell if an error code indicates a transient failure 3309** 3310** This looks at an errno value and tells if this is likely to 3311** go away if retried later. 3312** 3313** Parameters: 3314** err -- the errno code to classify. 3315** 3316** Returns: 3317** true if this is probably transient. 3318** false otherwise. 3319*/ 3320 3321bool 3322transienterror(err) 3323 int err; 3324{ 3325 switch (err) 3326 { 3327 case EIO: /* I/O error */ 3328 case ENXIO: /* Device not configured */ 3329 case EAGAIN: /* Resource temporarily unavailable */ 3330 case ENOMEM: /* Cannot allocate memory */ 3331 case ENODEV: /* Operation not supported by device */ 3332 case ENFILE: /* Too many open files in system */ 3333 case EMFILE: /* Too many open files */ 3334 case ENOSPC: /* No space left on device */ 3335 case ETIMEDOUT: /* Connection timed out */ 3336#ifdef ESTALE 3337 case ESTALE: /* Stale NFS file handle */ 3338#endif /* ESTALE */ 3339#ifdef ENETDOWN 3340 case ENETDOWN: /* Network is down */ 3341#endif /* ENETDOWN */ 3342#ifdef ENETUNREACH 3343 case ENETUNREACH: /* Network is unreachable */ 3344#endif /* ENETUNREACH */ 3345#ifdef ENETRESET 3346 case ENETRESET: /* Network dropped connection on reset */ 3347#endif /* ENETRESET */ 3348#ifdef ECONNABORTED 3349 case ECONNABORTED: /* Software caused connection abort */ 3350#endif /* ECONNABORTED */ 3351#ifdef ECONNRESET 3352 case ECONNRESET: /* Connection reset by peer */ 3353#endif /* ECONNRESET */ 3354#ifdef ENOBUFS 3355 case ENOBUFS: /* No buffer space available */ 3356#endif /* ENOBUFS */ 3357#ifdef ESHUTDOWN 3358 case ESHUTDOWN: /* Can't send after socket shutdown */ 3359#endif /* ESHUTDOWN */ 3360#ifdef ECONNREFUSED 3361 case ECONNREFUSED: /* Connection refused */ 3362#endif /* ECONNREFUSED */ 3363#ifdef EHOSTDOWN 3364 case EHOSTDOWN: /* Host is down */ 3365#endif /* EHOSTDOWN */ 3366#ifdef EHOSTUNREACH 3367 case EHOSTUNREACH: /* No route to host */ 3368#endif /* EHOSTUNREACH */ 3369#ifdef EDQUOT 3370 case EDQUOT: /* Disc quota exceeded */ 3371#endif /* EDQUOT */ 3372#ifdef EPROCLIM 3373 case EPROCLIM: /* Too many processes */ 3374#endif /* EPROCLIM */ 3375#ifdef EUSERS 3376 case EUSERS: /* Too many users */ 3377#endif /* EUSERS */ 3378#ifdef EDEADLK 3379 case EDEADLK: /* Resource deadlock avoided */ 3380#endif /* EDEADLK */ 3381#ifdef EISCONN 3382 case EISCONN: /* Socket already connected */ 3383#endif /* EISCONN */ 3384#ifdef EINPROGRESS 3385 case EINPROGRESS: /* Operation now in progress */ 3386#endif /* EINPROGRESS */ 3387#ifdef EALREADY 3388 case EALREADY: /* Operation already in progress */ 3389#endif /* EALREADY */ 3390#ifdef EADDRINUSE 3391 case EADDRINUSE: /* Address already in use */ 3392#endif /* EADDRINUSE */ 3393#ifdef EADDRNOTAVAIL 3394 case EADDRNOTAVAIL: /* Can't assign requested address */ 3395#endif /* EADDRNOTAVAIL */ 3396#ifdef ETXTBSY 3397 case ETXTBSY: /* (Apollo) file locked */ 3398#endif /* ETXTBSY */ 3399#if defined(ENOSR) && (!defined(ENOBUFS) || (ENOBUFS != ENOSR)) 3400 case ENOSR: /* Out of streams resources */ 3401#endif /* defined(ENOSR) && (!defined(ENOBUFS) || (ENOBUFS != ENOSR)) */ 3402#ifdef ENOLCK 3403 case ENOLCK: /* No locks available */ 3404#endif /* ENOLCK */ 3405 case E_SM_OPENTIMEOUT: /* PSEUDO: open timed out */ 3406 return true; 3407 } 3408 3409 /* nope, must be permanent */ 3410 return false; 3411} 3412/* 3413** LOCKFILE -- lock a file using flock or (shudder) fcntl locking 3414** 3415** Parameters: 3416** fd -- the file descriptor of the file. 3417** filename -- the file name (for error messages). 3418** ext -- the filename extension. 3419** type -- type of the lock. Bits can be: 3420** LOCK_EX -- exclusive lock. 3421** LOCK_NB -- non-blocking. 3422** LOCK_UN -- unlock. 3423** 3424** Returns: 3425** true if the lock was acquired. 3426** false otherwise. 3427*/ 3428 3429bool 3430lockfile(fd, filename, ext, type) 3431 int fd; 3432 char *filename; 3433 char *ext; 3434 int type; 3435{ 3436 int i; 3437 int save_errno; 3438# if !HASFLOCK 3439 int action; 3440 struct flock lfd; 3441 3442 if (ext == NULL) 3443 ext = ""; 3444 3445 memset(&lfd, '\0', sizeof lfd); 3446 if (bitset(LOCK_UN, type)) 3447 lfd.l_type = F_UNLCK; 3448 else if (bitset(LOCK_EX, type)) 3449 lfd.l_type = F_WRLCK; 3450 else 3451 lfd.l_type = F_RDLCK; 3452 3453 if (bitset(LOCK_NB, type)) 3454 action = F_SETLK; 3455 else 3456 action = F_SETLKW; 3457 3458 if (tTd(55, 60)) 3459 sm_dprintf("lockfile(%s%s, action=%d, type=%d): ", 3460 filename, ext, action, lfd.l_type); 3461 3462 while ((i = fcntl(fd, action, &lfd)) < 0 && errno == EINTR) 3463 continue; 3464 if (i >= 0) 3465 { 3466 if (tTd(55, 60)) 3467 sm_dprintf("SUCCESS\n"); 3468 return true; 3469 } 3470 save_errno = errno; 3471 3472 if (tTd(55, 60)) 3473 sm_dprintf("(%s) ", sm_errstring(save_errno)); 3474 3475 /* 3476 ** On SunOS, if you are testing using -oQ/tmp/mqueue or 3477 ** -oA/tmp/aliases or anything like that, and /tmp is mounted 3478 ** as type "tmp" (that is, served from swap space), the 3479 ** previous fcntl will fail with "Invalid argument" errors. 3480 ** Since this is fairly common during testing, we will assume 3481 ** that this indicates that the lock is successfully grabbed. 3482 */ 3483 3484 if (save_errno == EINVAL) 3485 { 3486 if (tTd(55, 60)) 3487 sm_dprintf("SUCCESS\n"); 3488 return true; 3489 } 3490 3491 if (!bitset(LOCK_NB, type) || 3492 (save_errno != EACCES && save_errno != EAGAIN)) 3493 { 3494 int omode = fcntl(fd, F_GETFL, 0); 3495 uid_t euid = geteuid(); 3496 3497 errno = save_errno; 3498 syserr("cannot lockf(%s%s, fd=%d, type=%o, omode=%o, euid=%d)", 3499 filename, ext, fd, type, omode, euid); 3500 dumpfd(fd, true, true); 3501 } 3502# else /* !HASFLOCK */ 3503 if (ext == NULL) 3504 ext = ""; 3505 3506 if (tTd(55, 60)) 3507 sm_dprintf("lockfile(%s%s, type=%o): ", filename, ext, type); 3508 3509 while ((i = flock(fd, type)) < 0 && errno == EINTR) 3510 continue; 3511 if (i >= 0) 3512 { 3513 if (tTd(55, 60)) 3514 sm_dprintf("SUCCESS\n"); 3515 return true; 3516 } 3517 save_errno = errno; 3518 3519 if (tTd(55, 60)) 3520 sm_dprintf("(%s) ", sm_errstring(save_errno)); 3521 3522 if (!bitset(LOCK_NB, type) || save_errno != EWOULDBLOCK) 3523 { 3524 int omode = fcntl(fd, F_GETFL, 0); 3525 uid_t euid = geteuid(); 3526 3527 errno = save_errno; 3528 syserr("cannot flock(%s%s, fd=%d, type=%o, omode=%o, euid=%d)", 3529 filename, ext, fd, type, omode, euid); 3530 dumpfd(fd, true, true); 3531 } 3532# endif /* !HASFLOCK */ 3533 if (tTd(55, 60)) 3534 sm_dprintf("FAIL\n"); 3535 errno = save_errno; 3536 return false; 3537} 3538/* 3539** CHOWNSAFE -- tell if chown is "safe" (executable only by root) 3540** 3541** Unfortunately, given that we can't predict other systems on which 3542** a remote mounted (NFS) filesystem will be mounted, the answer is 3543** almost always that this is unsafe. 3544** 3545** Note also that many operating systems have non-compliant 3546** implementations of the _POSIX_CHOWN_RESTRICTED variable and the 3547** fpathconf() routine. According to IEEE 1003.1-1990, if 3548** _POSIX_CHOWN_RESTRICTED is defined and not equal to -1, then 3549** no non-root process can give away the file. However, vendors 3550** don't take NFS into account, so a comfortable value of 3551** _POSIX_CHOWN_RESTRICTED tells us nothing. 3552** 3553** Also, some systems (e.g., IRIX 6.2) return 1 from fpathconf() 3554** even on files where chown is not restricted. Many systems get 3555** this wrong on NFS-based filesystems (that is, they say that chown 3556** is restricted [safe] on NFS filesystems where it may not be, since 3557** other systems can access the same filesystem and do file giveaway; 3558** only the NFS server knows for sure!) Hence, it is important to 3559** get the value of SAFENFSPATHCONF correct -- it should be defined 3560** _only_ after testing (see test/t_pathconf.c) a system on an unsafe 3561** NFS-based filesystem to ensure that you can get meaningful results. 3562** If in doubt, assume unsafe! 3563** 3564** You may also need to tweak IS_SAFE_CHOWN -- it should be a 3565** condition indicating whether the return from pathconf indicates 3566** that chown is safe (typically either > 0 or >= 0 -- there isn't 3567** even any agreement about whether a zero return means that a file 3568** is or is not safe). It defaults to "> 0". 3569** 3570** If the parent directory is safe (writable only by owner back 3571** to the root) then we can relax slightly and trust fpathconf 3572** in more circumstances. This is really a crock -- if this is an 3573** NFS mounted filesystem then we really know nothing about the 3574** underlying implementation. However, most systems pessimize and 3575** return an error (EINVAL or EOPNOTSUPP) on NFS filesystems, which 3576** we interpret as unsafe, as we should. Thus, this heuristic gets 3577** us into a possible problem only on systems that have a broken 3578** pathconf implementation and which are also poorly configured 3579** (have :include: files in group- or world-writable directories). 3580** 3581** Parameters: 3582** fd -- the file descriptor to check. 3583** safedir -- set if the parent directory is safe. 3584** 3585** Returns: 3586** true -- if the chown(2) operation is "safe" -- that is, 3587** only root can chown the file to an arbitrary user. 3588** false -- if an arbitrary user can give away a file. 3589*/ 3590 3591#ifndef IS_SAFE_CHOWN 3592# define IS_SAFE_CHOWN > 0 3593#endif /* ! IS_SAFE_CHOWN */ 3594 3595bool 3596chownsafe(fd, safedir) 3597 int fd; 3598 bool safedir; 3599{ 3600# if (!defined(_POSIX_CHOWN_RESTRICTED) || _POSIX_CHOWN_RESTRICTED != -1) && \ 3601 (defined(_PC_CHOWN_RESTRICTED) || defined(_GNU_TYPES_H)) 3602 int rval; 3603 3604 /* give the system administrator a chance to override */ 3605 if (bitnset(DBS_ASSUMESAFECHOWN, DontBlameSendmail)) 3606 return true; 3607 3608 /* 3609 ** Some systems (e.g., SunOS) seem to have the call and the 3610 ** #define _PC_CHOWN_RESTRICTED, but don't actually implement 3611 ** the call. This heuristic checks for that. 3612 */ 3613 3614 errno = 0; 3615 rval = fpathconf(fd, _PC_CHOWN_RESTRICTED); 3616# if SAFENFSPATHCONF 3617 return errno == 0 && rval IS_SAFE_CHOWN; 3618# else /* SAFENFSPATHCONF */ 3619 return safedir && errno == 0 && rval IS_SAFE_CHOWN; 3620# endif /* SAFENFSPATHCONF */ 3621# else /* (!defined(_POSIX_CHOWN_RESTRICTED) || _POSIX_CHOWN_RESTRICTED != -1) && ... */ 3622 return bitnset(DBS_ASSUMESAFECHOWN, DontBlameSendmail); 3623# endif /* (!defined(_POSIX_CHOWN_RESTRICTED) || _POSIX_CHOWN_RESTRICTED != -1) && ... */ 3624} 3625/* 3626** RESETLIMITS -- reset system controlled resource limits 3627** 3628** This is to avoid denial-of-service attacks 3629** 3630** Parameters: 3631** none 3632** 3633** Returns: 3634** none 3635*/ 3636 3637#if HASSETRLIMIT 3638# ifdef RLIMIT_NEEDS_SYS_TIME_H 3639# include <sys/time.h> 3640# endif /* RLIMIT_NEEDS_SYS_TIME_H */ 3641# include <sys/resource.h> 3642#endif /* HASSETRLIMIT */ 3643#ifndef FD_SETSIZE 3644# define FD_SETSIZE 256 3645#endif /* ! FD_SETSIZE */ 3646 3647void 3648resetlimits() 3649{ 3650#if HASSETRLIMIT 3651 struct rlimit lim; 3652 3653 lim.rlim_cur = lim.rlim_max = RLIM_INFINITY; 3654 (void) setrlimit(RLIMIT_CPU, &lim); 3655 (void) setrlimit(RLIMIT_FSIZE, &lim); 3656# ifdef RLIMIT_NOFILE 3657 lim.rlim_cur = lim.rlim_max = FD_SETSIZE; 3658 (void) setrlimit(RLIMIT_NOFILE, &lim); 3659# endif /* RLIMIT_NOFILE */ 3660#else /* HASSETRLIMIT */ 3661# if HASULIMIT 3662 (void) ulimit(2, 0x3fffff); 3663 (void) ulimit(4, FD_SETSIZE); 3664# endif /* HASULIMIT */ 3665#endif /* HASSETRLIMIT */ 3666 errno = 0; 3667} 3668/* 3669** SETVENDOR -- process vendor code from V configuration line 3670** 3671** Parameters: 3672** vendor -- string representation of vendor. 3673** 3674** Returns: 3675** true -- if ok. 3676** false -- if vendor code could not be processed. 3677** 3678** Side Effects: 3679** It is reasonable to set mode flags here to tweak 3680** processing in other parts of the code if necessary. 3681** For example, if you are a vendor that uses $%y to 3682** indicate YP lookups, you could enable that here. 3683*/ 3684 3685bool 3686setvendor(vendor) 3687 char *vendor; 3688{ 3689 if (sm_strcasecmp(vendor, "Berkeley") == 0) 3690 { 3691 VendorCode = VENDOR_BERKELEY; 3692 return true; 3693 } 3694 3695 /* add vendor extensions here */ 3696 3697#ifdef SUN_EXTENSIONS 3698 if (sm_strcasecmp(vendor, "Sun") == 0) 3699 { 3700 VendorCode = VENDOR_SUN; 3701 return true; 3702 } 3703#endif /* SUN_EXTENSIONS */ 3704 3705#if defined(VENDOR_NAME) && defined(VENDOR_CODE) 3706 if (sm_strcasecmp(vendor, VENDOR_NAME) == 0) 3707 { 3708 VendorCode = VENDOR_CODE; 3709 return true; 3710 } 3711#endif /* defined(VENDOR_NAME) && defined(VENDOR_CODE) */ 3712 3713 return false; 3714} 3715/* 3716** GETVENDOR -- return vendor name based on vendor code 3717** 3718** Parameters: 3719** vendorcode -- numeric representation of vendor. 3720** 3721** Returns: 3722** string containing vendor name. 3723*/ 3724 3725char * 3726getvendor(vendorcode) 3727 int vendorcode; 3728{ 3729#if defined(VENDOR_NAME) && defined(VENDOR_CODE) 3730 /* 3731 ** Can't have the same switch case twice so need to 3732 ** handle VENDOR_CODE outside of switch. It might 3733 ** match one of the existing VENDOR_* codes. 3734 */ 3735 3736 if (vendorcode == VENDOR_CODE) 3737 return VENDOR_NAME; 3738#endif /* defined(VENDOR_NAME) && defined(VENDOR_CODE) */ 3739 3740 switch (vendorcode) 3741 { 3742 case VENDOR_BERKELEY: 3743 return "Berkeley"; 3744 3745 case VENDOR_SUN: 3746 return "Sun"; 3747 3748 case VENDOR_HP: 3749 return "HP"; 3750 3751 case VENDOR_IBM: 3752 return "IBM"; 3753 3754 case VENDOR_SENDMAIL: 3755 return "Sendmail"; 3756 3757 default: 3758 return "Unknown"; 3759 } 3760} 3761/* 3762** VENDOR_PRE_DEFAULTS, VENDOR_POST_DEFAULTS -- set vendor-specific defaults 3763** 3764** Vendor_pre_defaults is called before reading the configuration 3765** file; vendor_post_defaults is called immediately after. 3766** 3767** Parameters: 3768** e -- the global environment to initialize. 3769** 3770** Returns: 3771** none. 3772*/ 3773 3774#if SHARE_V1 3775int DefShareUid; /* default share uid to run as -- unused??? */ 3776#endif /* SHARE_V1 */ 3777 3778void 3779vendor_pre_defaults(e) 3780 ENVELOPE *e; 3781{ 3782#if SHARE_V1 3783 /* OTHERUID is defined in shares.h, do not be alarmed */ 3784 DefShareUid = OTHERUID; 3785#endif /* SHARE_V1 */ 3786#if defined(SUN_EXTENSIONS) && defined(SUN_DEFAULT_VALUES) 3787 sun_pre_defaults(e); 3788#endif /* defined(SUN_EXTENSIONS) && defined(SUN_DEFAULT_VALUES) */ 3789#ifdef apollo 3790 /* 3791 ** stupid domain/os can't even open 3792 ** /etc/mail/sendmail.cf without this 3793 */ 3794 3795 setuserenv("ISP", NULL); 3796 setuserenv("SYSTYPE", NULL); 3797#endif /* apollo */ 3798} 3799 3800 3801void 3802vendor_post_defaults(e) 3803 ENVELOPE *e; 3804{ 3805#ifdef __QNX__ 3806 char *p; 3807 3808 /* Makes sure the SOCK environment variable remains */ 3809 if (p = getextenv("SOCK")) 3810 setuserenv("SOCK", p); 3811#endif /* __QNX__ */ 3812#if defined(SUN_EXTENSIONS) && defined(SUN_DEFAULT_VALUES) 3813 sun_post_defaults(e); 3814#endif /* defined(SUN_EXTENSIONS) && defined(SUN_DEFAULT_VALUES) */ 3815} 3816/* 3817** VENDOR_DAEMON_SETUP -- special vendor setup needed for daemon mode 3818*/ 3819 3820void 3821vendor_daemon_setup(e) 3822 ENVELOPE *e; 3823{ 3824#if HASSETLOGIN 3825 (void) setlogin(RunAsUserName); 3826#endif /* HASSETLOGIN */ 3827#if SECUREWARE 3828 if (getluid() != -1) 3829 { 3830 usrerr("Daemon cannot have LUID"); 3831 finis(false, true, EX_USAGE); 3832 } 3833#endif /* SECUREWARE */ 3834} 3835/* 3836** VENDOR_SET_UID -- do setup for setting a user id 3837** 3838** This is called when we are still root. 3839** 3840** Parameters: 3841** uid -- the uid we are about to become. 3842** 3843** Returns: 3844** none. 3845*/ 3846 3847void 3848vendor_set_uid(uid) 3849 UID_T uid; 3850{ 3851 /* 3852 ** We need to setup the share groups (lnodes) 3853 ** and add auditing information (luid's) 3854 ** before we loose our ``root''ness. 3855 */ 3856#if SHARE_V1 3857 if (setupshares(uid, syserr) != 0) 3858 syserr("Unable to set up shares"); 3859#endif /* SHARE_V1 */ 3860#if SECUREWARE 3861 (void) setup_secure(uid); 3862#endif /* SECUREWARE */ 3863} 3864/* 3865** VALIDATE_CONNECTION -- check connection for rationality 3866** 3867** If the connection is rejected, this routine should log an 3868** appropriate message -- but should never issue any SMTP protocol. 3869** 3870** Parameters: 3871** sap -- a pointer to a SOCKADDR naming the peer. 3872** hostname -- the name corresponding to sap. 3873** e -- the current envelope. 3874** 3875** Returns: 3876** error message from rejection. 3877** NULL if not rejected. 3878*/ 3879 3880#if TCPWRAPPERS 3881# include <tcpd.h> 3882 3883/* tcpwrappers does no logging, but you still have to declare these -- ugh */ 3884int allow_severity = LOG_INFO; 3885int deny_severity = LOG_NOTICE; 3886#endif /* TCPWRAPPERS */ 3887 3888char * 3889validate_connection(sap, hostname, e) 3890 SOCKADDR *sap; 3891 char *hostname; 3892 ENVELOPE *e; 3893{ 3894#if TCPWRAPPERS 3895 char *host; 3896 char *addr; 3897 extern int hosts_ctl(); 3898#endif /* TCPWRAPPERS */ 3899 3900 if (tTd(48, 3)) 3901 sm_dprintf("validate_connection(%s, %s)\n", 3902 hostname, anynet_ntoa(sap)); 3903 3904 if (rscheck("check_relay", hostname, anynet_ntoa(sap), 3905 e, true, true, 3, NULL, NOQID) != EX_OK) 3906 { 3907 static char reject[BUFSIZ*2]; 3908 extern char MsgBuf[]; 3909 3910 if (tTd(48, 4)) 3911 sm_dprintf(" ... validate_connection: BAD (rscheck)\n"); 3912 3913 if (strlen(MsgBuf) >= 3) 3914 (void) sm_strlcpy(reject, MsgBuf, sizeof reject); 3915 else 3916 (void) sm_strlcpy(reject, "Access denied", sizeof reject); 3917 3918 return reject; 3919 } 3920 3921#if TCPWRAPPERS 3922 if (hostname[0] == '[' && hostname[strlen(hostname) - 1] == ']') 3923 host = "unknown"; 3924 else 3925 host = hostname; 3926 addr = anynet_ntoa(sap); 3927 3928# if NETINET6 3929 /* TCP/Wrappers don't want the IPv6: protocol label */ 3930 if (addr != NULL && sm_strncasecmp(addr, "IPv6:", 5) == 0) 3931 addr += 5; 3932# endif /* NETINET6 */ 3933 3934 if (!hosts_ctl("sendmail", host, addr, STRING_UNKNOWN)) 3935 { 3936 if (tTd(48, 4)) 3937 sm_dprintf(" ... validate_connection: BAD (tcpwrappers)\n"); 3938 if (LogLevel > 3) 3939 sm_syslog(LOG_NOTICE, e->e_id, 3940 "tcpwrappers (%s, %s) rejection", 3941 host, addr); 3942 return "Access denied"; 3943 } 3944#endif /* TCPWRAPPERS */ 3945 if (tTd(48, 4)) 3946 sm_dprintf(" ... validate_connection: OK\n"); 3947 return NULL; 3948} 3949 3950/* 3951** STRTOL -- convert string to long integer 3952** 3953** For systems that don't have it in the C library. 3954** 3955** This is taken verbatim from the 4.4-Lite C library. 3956*/ 3957 3958#if NEEDSTRTOL 3959 3960# if defined(LIBC_SCCS) && !defined(lint) 3961static char sccsid[] = "@(#)strtol.c 8.1 (Berkeley) 6/4/93"; 3962# endif /* defined(LIBC_SCCS) && !defined(lint) */ 3963 3964/* 3965** Convert a string to a long integer. 3966** 3967** Ignores `locale' stuff. Assumes that the upper and lower case 3968** alphabets and digits are each contiguous. 3969*/ 3970 3971long 3972strtol(nptr, endptr, base) 3973 const char *nptr; 3974 char **endptr; 3975 register int base; 3976{ 3977 register const char *s = nptr; 3978 register unsigned long acc; 3979 register int c; 3980 register unsigned long cutoff; 3981 register int neg = 0, any, cutlim; 3982 3983 /* 3984 ** Skip white space and pick up leading +/- sign if any. 3985 ** If base is 0, allow 0x for hex and 0 for octal, else 3986 ** assume decimal; if base is already 16, allow 0x. 3987 */ 3988 do { 3989 c = *s++; 3990 } while (isspace(c)); 3991 if (c == '-') { 3992 neg = 1; 3993 c = *s++; 3994 } else if (c == '+') 3995 c = *s++; 3996 if ((base == 0 || base == 16) && 3997 c == '0' && (*s == 'x' || *s == 'X')) { 3998 c = s[1]; 3999 s += 2; 4000 base = 16; 4001 } 4002 if (base == 0) 4003 base = c == '0' ? 8 : 10; 4004 4005 /* 4006 ** Compute the cutoff value between legal numbers and illegal 4007 ** numbers. That is the largest legal value, divided by the 4008 ** base. An input number that is greater than this value, if 4009 ** followed by a legal input character, is too big. One that 4010 ** is equal to this value may be valid or not; the limit 4011 ** between valid and invalid numbers is then based on the last 4012 ** digit. For instance, if the range for longs is 4013 ** [-2147483648..2147483647] and the input base is 10, 4014 ** cutoff will be set to 214748364 and cutlim to either 4015 ** 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated 4016 ** a value > 214748364, or equal but the next digit is > 7 (or 8), 4017 ** the number is too big, and we will return a range error. 4018 ** 4019 ** Set any if any `digits' consumed; make it negative to indicate 4020 ** overflow. 4021 */ 4022 cutoff = neg ? -(unsigned long) LONG_MIN : LONG_MAX; 4023 cutlim = cutoff % (unsigned long) base; 4024 cutoff /= (unsigned long) base; 4025 for (acc = 0, any = 0;; c = *s++) { 4026 if (isdigit(c)) 4027 c -= '0'; 4028 else if (isalpha(c)) 4029 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4030 else 4031 break; 4032 if (c >= base) 4033 break; 4034 if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim) 4035 any = -1; 4036 else { 4037 any = 1; 4038 acc *= base; 4039 acc += c; 4040 } 4041 } 4042 if (any < 0) { 4043 acc = neg ? LONG_MIN : LONG_MAX; 4044 errno = ERANGE; 4045 } else if (neg) 4046 acc = -acc; 4047 if (endptr != 0) 4048 *endptr = (char *)(any ? s - 1 : nptr); 4049 return acc; 4050} 4051 4052#endif /* NEEDSTRTOL */ 4053/* 4054** STRSTR -- find first substring in string 4055** 4056** Parameters: 4057** big -- the big (full) string. 4058** little -- the little (sub) string. 4059** 4060** Returns: 4061** A pointer to the first instance of little in big. 4062** big if little is the null string. 4063** NULL if little is not contained in big. 4064*/ 4065 4066#if NEEDSTRSTR 4067 4068char * 4069strstr(big, little) 4070 char *big; 4071 char *little; 4072{ 4073 register char *p = big; 4074 int l; 4075 4076 if (*little == '\0') 4077 return big; 4078 l = strlen(little); 4079 4080 while ((p = strchr(p, *little)) != NULL) 4081 { 4082 if (strncmp(p, little, l) == 0) 4083 return p; 4084 p++; 4085 } 4086 return NULL; 4087} 4088 4089#endif /* NEEDSTRSTR */ 4090/* 4091** SM_GETHOSTBY{NAME,ADDR} -- compatibility routines for gethostbyXXX 4092** 4093** Some operating systems have wierd problems with the gethostbyXXX 4094** routines. For example, Solaris versions at least through 2.3 4095** don't properly deliver a canonical h_name field. This tries to 4096** work around these problems. 4097** 4098** Support IPv6 as well as IPv4. 4099*/ 4100 4101#if NETINET6 && NEEDSGETIPNODE 4102 4103# ifndef AI_DEFAULT 4104# define AI_DEFAULT 0 /* dummy */ 4105# endif /* ! AI_DEFAULT */ 4106# ifndef AI_ADDRCONFIG 4107# define AI_ADDRCONFIG 0 /* dummy */ 4108# endif /* ! AI_ADDRCONFIG */ 4109# ifndef AI_V4MAPPED 4110# define AI_V4MAPPED 0 /* dummy */ 4111# endif /* ! AI_V4MAPPED */ 4112# ifndef AI_ALL 4113# define AI_ALL 0 /* dummy */ 4114# endif /* ! AI_ALL */ 4115 4116static struct hostent * 4117getipnodebyname(name, family, flags, err) 4118 char *name; 4119 int family; 4120 int flags; 4121 int *err; 4122{ 4123 bool resv6 = true; 4124 struct hostent *h; 4125 4126 if (family == AF_INET6) 4127 { 4128 /* From RFC2133, section 6.1 */ 4129 resv6 = bitset(RES_USE_INET6, _res.options); 4130 _res.options |= RES_USE_INET6; 4131 } 4132 SM_SET_H_ERRNO(0); 4133 h = gethostbyname(name); 4134 if (!resv6) 4135 _res.options &= ~RES_USE_INET6; 4136 *err = h_errno; 4137 return h; 4138} 4139 4140static struct hostent * 4141getipnodebyaddr(addr, len, family, err) 4142 char *addr; 4143 int len; 4144 int family; 4145 int *err; 4146{ 4147 struct hostent *h; 4148 4149 SM_SET_H_ERRNO(0); 4150 h = gethostbyaddr(addr, len, family); 4151 *err = h_errno; 4152 return h; 4153} 4154 4155void 4156freehostent(h) 4157 struct hostent *h; 4158{ 4159 /* 4160 ** Stub routine -- if they don't have getipnodeby*(), 4161 ** they probably don't have the free routine either. 4162 */ 4163 4164 return; 4165} 4166#endif /* NETINET6 && NEEDSGETIPNODE */ 4167 4168struct hostent * 4169sm_gethostbyname(name, family) 4170 char *name; 4171 int family; 4172{ 4173 int save_errno; 4174 struct hostent *h = NULL; 4175#if (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4)) 4176# if SOLARIS == 20300 || SOLARIS == 203 4177 static struct hostent hp; 4178 static char buf[1000]; 4179 extern struct hostent *_switch_gethostbyname_r(); 4180 4181 if (tTd(61, 10)) 4182 sm_dprintf("_switch_gethostbyname_r(%s)... ", name); 4183 h = _switch_gethostbyname_r(name, &hp, buf, sizeof(buf), &h_errno); 4184 save_errno = errno; 4185# else /* SOLARIS == 20300 || SOLARIS == 203 */ 4186 extern struct hostent *__switch_gethostbyname(); 4187 4188 if (tTd(61, 10)) 4189 sm_dprintf("__switch_gethostbyname(%s)... ", name); 4190 h = __switch_gethostbyname(name); 4191 save_errno = errno; 4192# endif /* SOLARIS == 20300 || SOLARIS == 203 */ 4193#else /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4)) */ 4194 int nmaps; 4195# if NETINET6 4196 int flags = AI_DEFAULT|AI_ALL; 4197 int err; 4198# endif /* NETINET6 */ 4199 char *maptype[MAXMAPSTACK]; 4200 short mapreturn[MAXMAPACTIONS]; 4201 char hbuf[MAXNAME]; 4202 4203 if (tTd(61, 10)) 4204 sm_dprintf("sm_gethostbyname(%s, %d)... ", name, family); 4205 4206# if NETINET6 4207# if ADDRCONFIG_IS_BROKEN 4208 flags &= ~AI_ADDRCONFIG; 4209# endif /* ADDRCONFIG_IS_BROKEN */ 4210 h = getipnodebyname(name, family, flags, &err); 4211 SM_SET_H_ERRNO(err); 4212# else /* NETINET6 */ 4213 h = gethostbyname(name); 4214# endif /* NETINET6 */ 4215 4216 save_errno = errno; 4217 if (h == NULL) 4218 { 4219 if (tTd(61, 10)) 4220 sm_dprintf("failure\n"); 4221 4222 nmaps = switch_map_find("hosts", maptype, mapreturn); 4223 while (--nmaps >= 0) 4224 { 4225 if (strcmp(maptype[nmaps], "nis") == 0 || 4226 strcmp(maptype[nmaps], "files") == 0) 4227 break; 4228 } 4229 4230 if (nmaps >= 0) 4231 { 4232 /* try short name */ 4233 if (strlen(name) > sizeof hbuf - 1) 4234 { 4235 errno = save_errno; 4236 return NULL; 4237 } 4238 (void) sm_strlcpy(hbuf, name, sizeof hbuf); 4239 (void) shorten_hostname(hbuf); 4240 4241 /* if it hasn't been shortened, there's no point */ 4242 if (strcmp(hbuf, name) != 0) 4243 { 4244 if (tTd(61, 10)) 4245 sm_dprintf("sm_gethostbyname(%s, %d)... ", 4246 hbuf, family); 4247 4248# if NETINET6 4249 h = getipnodebyname(hbuf, family, flags, &err); 4250 SM_SET_H_ERRNO(err); 4251 save_errno = errno; 4252# else /* NETINET6 */ 4253 h = gethostbyname(hbuf); 4254 save_errno = errno; 4255# endif /* NETINET6 */ 4256 } 4257 } 4258 } 4259#endif /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4)) */ 4260 if (tTd(61, 10)) 4261 { 4262 if (h == NULL) 4263 sm_dprintf("failure\n"); 4264 else 4265 { 4266 sm_dprintf("%s\n", h->h_name); 4267 if (tTd(61, 11)) 4268 { 4269#if NETINET6 4270 struct in6_addr ia6; 4271 char buf6[INET6_ADDRSTRLEN]; 4272#else /* NETINET6 */ 4273 struct in_addr ia; 4274#endif /* NETINET6 */ 4275 size_t i; 4276 4277 if (h->h_aliases != NULL) 4278 for (i = 0; h->h_aliases[i] != NULL; 4279 i++) 4280 sm_dprintf("\talias: %s\n", 4281 h->h_aliases[i]); 4282 for (i = 0; h->h_addr_list[i] != NULL; i++) 4283 { 4284 char *addr; 4285 4286#if NETINET6 4287 memmove(&ia6, h->h_addr_list[i], 4288 IN6ADDRSZ); 4289 addr = anynet_ntop(&ia6, 4290 buf6, sizeof buf6); 4291#else /* NETINET6 */ 4292 memmove(&ia, h->h_addr_list[i], 4293 INADDRSZ); 4294 addr = (char *) inet_ntoa(ia); 4295#endif /* NETINET6 */ 4296 if (addr != NULL) 4297 sm_dprintf("\taddr: %s\n", addr); 4298 } 4299 } 4300 } 4301 } 4302 errno = save_errno; 4303 return h; 4304} 4305 4306struct hostent * 4307sm_gethostbyaddr(addr, len, type) 4308 char *addr; 4309 int len; 4310 int type; 4311{ 4312 struct hostent *hp; 4313 4314#if NETINET6 4315 if (type == AF_INET6 && 4316 IN6_IS_ADDR_UNSPECIFIED((struct in6_addr *) addr)) 4317 { 4318 /* Avoid reverse lookup for IPv6 unspecified address */ 4319 SM_SET_H_ERRNO(HOST_NOT_FOUND); 4320 return NULL; 4321 } 4322#endif /* NETINET6 */ 4323 4324#if (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) 4325# if SOLARIS == 20300 || SOLARIS == 203 4326 { 4327 static struct hostent he; 4328 static char buf[1000]; 4329 extern struct hostent *_switch_gethostbyaddr_r(); 4330 4331 hp = _switch_gethostbyaddr_r(addr, len, type, &he, 4332 buf, sizeof(buf), &h_errno); 4333 } 4334# else /* SOLARIS == 20300 || SOLARIS == 203 */ 4335 { 4336 extern struct hostent *__switch_gethostbyaddr(); 4337 4338 hp = __switch_gethostbyaddr(addr, len, type); 4339 } 4340# endif /* SOLARIS == 20300 || SOLARIS == 203 */ 4341#else /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) */ 4342# if NETINET6 4343 { 4344 int err; 4345 4346 hp = getipnodebyaddr(addr, len, type, &err); 4347 SM_SET_H_ERRNO(err); 4348 } 4349# else /* NETINET6 */ 4350 hp = gethostbyaddr(addr, len, type); 4351# endif /* NETINET6 */ 4352#endif /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) */ 4353 return hp; 4354} 4355/* 4356** SM_GETPW{NAM,UID} -- wrapper for getpwnam and getpwuid 4357*/ 4358 4359struct passwd * 4360sm_getpwnam(user) 4361 char *user; 4362{ 4363#ifdef _AIX4 4364 extern struct passwd *_getpwnam_shadow(const char *, const int); 4365 4366 return _getpwnam_shadow(user, 0); 4367#else /* _AIX4 */ 4368 return getpwnam(user); 4369#endif /* _AIX4 */ 4370} 4371 4372struct passwd * 4373sm_getpwuid(uid) 4374 UID_T uid; 4375{ 4376#if defined(_AIX4) && 0 4377 extern struct passwd *_getpwuid_shadow(const int, const int); 4378 4379 return _getpwuid_shadow(uid,0); 4380#else /* defined(_AIX4) && 0 */ 4381 return getpwuid(uid); 4382#endif /* defined(_AIX4) && 0 */ 4383} 4384/* 4385** SECUREWARE_SETUP_SECURE -- Convex SecureWare setup 4386** 4387** Set up the trusted computing environment for C2 level security 4388** under SecureWare. 4389** 4390** Parameters: 4391** uid -- uid of the user to initialize in the TCB 4392** 4393** Returns: 4394** none 4395** 4396** Side Effects: 4397** Initialized the user in the trusted computing base 4398*/ 4399 4400#if SECUREWARE 4401 4402# include <sys/security.h> 4403# include <prot.h> 4404 4405void 4406secureware_setup_secure(uid) 4407 UID_T uid; 4408{ 4409 int rc; 4410 4411 if (getluid() != -1) 4412 return; 4413 4414 if ((rc = set_secure_info(uid)) != SSI_GOOD_RETURN) 4415 { 4416 switch (rc) 4417 { 4418 case SSI_NO_PRPW_ENTRY: 4419 syserr("No protected passwd entry, uid = %d", 4420 (int) uid); 4421 break; 4422 4423 case SSI_LOCKED: 4424 syserr("Account has been disabled, uid = %d", 4425 (int) uid); 4426 break; 4427 4428 case SSI_RETIRED: 4429 syserr("Account has been retired, uid = %d", 4430 (int) uid); 4431 break; 4432 4433 case SSI_BAD_SET_LUID: 4434 syserr("Could not set LUID, uid = %d", (int) uid); 4435 break; 4436 4437 case SSI_BAD_SET_PRIVS: 4438 syserr("Could not set kernel privs, uid = %d", 4439 (int) uid); 4440 4441 default: 4442 syserr("Unknown return code (%d) from set_secure_info(%d)", 4443 rc, (int) uid); 4444 break; 4445 } 4446 finis(false, true, EX_NOPERM); 4447 } 4448} 4449#endif /* SECUREWARE */ 4450/* 4451** ADD_HOSTNAMES -- Add a hostname to class 'w' based on IP address 4452** 4453** Add hostnames to class 'w' based on the IP address read from 4454** the network interface. 4455** 4456** Parameters: 4457** sa -- a pointer to a SOCKADDR containing the address 4458** 4459** Returns: 4460** 0 if successful, -1 if host lookup fails. 4461*/ 4462 4463static int 4464add_hostnames(sa) 4465 SOCKADDR *sa; 4466{ 4467 struct hostent *hp; 4468 char **ha; 4469 char hnb[MAXHOSTNAMELEN]; 4470 4471 /* lookup name with IP address */ 4472 switch (sa->sa.sa_family) 4473 { 4474#if NETINET 4475 case AF_INET: 4476 hp = sm_gethostbyaddr((char *) &sa->sin.sin_addr, 4477 sizeof(sa->sin.sin_addr), 4478 sa->sa.sa_family); 4479 break; 4480#endif /* NETINET */ 4481 4482#if NETINET6 4483 case AF_INET6: 4484 hp = sm_gethostbyaddr((char *) &sa->sin6.sin6_addr, 4485 sizeof(sa->sin6.sin6_addr), 4486 sa->sa.sa_family); 4487 break; 4488#endif /* NETINET6 */ 4489 4490 default: 4491 /* Give warning about unsupported family */ 4492 if (LogLevel > 3) 4493 sm_syslog(LOG_WARNING, NOQID, 4494 "Unsupported address family %d: %.100s", 4495 sa->sa.sa_family, anynet_ntoa(sa)); 4496 return -1; 4497 } 4498 4499 if (hp == NULL) 4500 { 4501 int save_errno = errno; 4502 4503 if (LogLevel > 3 && 4504#if NETINET6 4505 !(sa->sa.sa_family == AF_INET6 && 4506 IN6_IS_ADDR_LINKLOCAL(&sa->sin6.sin6_addr)) && 4507#endif /* NETINET6 */ 4508 true) 4509 sm_syslog(LOG_WARNING, NOQID, 4510 "gethostbyaddr(%.100s) failed: %d", 4511 anynet_ntoa(sa), 4512#if NAMED_BIND 4513 h_errno 4514#else /* NAMED_BIND */ 4515 -1 4516#endif /* NAMED_BIND */ 4517 ); 4518 errno = save_errno; 4519 return -1; 4520 } 4521 4522 /* save its cname */ 4523 if (!wordinclass((char *) hp->h_name, 'w')) 4524 { 4525 setclass('w', (char *) hp->h_name); 4526 if (tTd(0, 4)) 4527 sm_dprintf("\ta.k.a.: %s\n", hp->h_name); 4528 4529 if (sm_snprintf(hnb, sizeof hnb, "[%s]", hp->h_name) < sizeof hnb 4530 && !wordinclass((char *) hnb, 'w')) 4531 setclass('w', hnb); 4532 } 4533 else 4534 { 4535 if (tTd(0, 43)) 4536 sm_dprintf("\ta.k.a.: %s (already in $=w)\n", hp->h_name); 4537 } 4538 4539 /* save all it aliases name */ 4540 for (ha = hp->h_aliases; ha != NULL && *ha != NULL; ha++) 4541 { 4542 if (!wordinclass(*ha, 'w')) 4543 { 4544 setclass('w', *ha); 4545 if (tTd(0, 4)) 4546 sm_dprintf("\ta.k.a.: %s\n", *ha); 4547 if (sm_snprintf(hnb, sizeof hnb, 4548 "[%s]", *ha) < sizeof hnb && 4549 !wordinclass((char *) hnb, 'w')) 4550 setclass('w', hnb); 4551 } 4552 else 4553 { 4554 if (tTd(0, 43)) 4555 sm_dprintf("\ta.k.a.: %s (already in $=w)\n", 4556 *ha); 4557 } 4558 } 4559#if NETINET6 4560 freehostent(hp); 4561#endif /* NETINET6 */ 4562 return 0; 4563} 4564/* 4565** LOAD_IF_NAMES -- load interface-specific names into $=w 4566** 4567** Parameters: 4568** none. 4569** 4570** Returns: 4571** none. 4572** 4573** Side Effects: 4574** Loads $=w with the names of all the interfaces. 4575*/ 4576 4577#if !NETINET 4578# define SIOCGIFCONF_IS_BROKEN 1 /* XXX */ 4579#endif /* !NETINET */ 4580 4581#if defined(SIOCGIFCONF) && !SIOCGIFCONF_IS_BROKEN 4582struct rtentry; 4583struct mbuf; 4584# ifndef SUNOS403 4585# include <sys/time.h> 4586# endif /* ! SUNOS403 */ 4587# if (_AIX4 >= 40300) && !defined(_NET_IF_H) 4588# undef __P 4589# endif /* (_AIX4 >= 40300) && !defined(_NET_IF_H) */ 4590# include <net/if.h> 4591#endif /* defined(SIOCGIFCONF) && !SIOCGIFCONF_IS_BROKEN */ 4592 4593void 4594load_if_names() 4595{ 4596# if NETINET6 && defined(SIOCGLIFCONF) 4597# ifdef __hpux 4598 4599 /* 4600 ** Unfortunately, HP has changed all of the structures, 4601 ** making life difficult for implementors. 4602 */ 4603 4604# define lifconf if_laddrconf 4605# define lifc_len iflc_len 4606# define lifc_buf iflc_buf 4607# define lifreq if_laddrreq 4608# define lifr_addr iflr_addr 4609# define lifr_name iflr_name 4610# define lifr_flags iflr_flags 4611# define ss_family sa_family 4612# undef SIOCGLIFNUM 4613# endif /* __hpux */ 4614 4615 int s; 4616 int i; 4617 size_t len; 4618 int numifs; 4619 char *buf; 4620 struct lifconf lifc; 4621# ifdef SIOCGLIFNUM 4622 struct lifnum lifn; 4623# endif /* SIOCGLIFNUM */ 4624 4625 s = socket(InetMode, SOCK_DGRAM, 0); 4626 if (s == -1) 4627 return; 4628 4629 /* get the list of known IP address from the kernel */ 4630# ifdef __hpux 4631 i = ioctl(s, SIOCGIFNUM, (char *) &numifs); 4632# endif /* __hpux */ 4633# ifdef SIOCGLIFNUM 4634 lifn.lifn_family = AF_UNSPEC; 4635 lifn.lifn_flags = 0; 4636 i = ioctl(s, SIOCGLIFNUM, (char *)&lifn); 4637 numifs = lifn.lifn_count; 4638# endif /* SIOCGLIFNUM */ 4639 4640# if defined(__hpux) || defined(SIOCGLIFNUM) 4641 if (i < 0) 4642 { 4643 /* can't get number of interfaces -- fall back */ 4644 if (tTd(0, 4)) 4645 sm_dprintf("SIOCGLIFNUM failed: %s\n", 4646 sm_errstring(errno)); 4647 numifs = -1; 4648 } 4649 else if (tTd(0, 42)) 4650 sm_dprintf("system has %d interfaces\n", numifs); 4651 if (numifs < 0) 4652# endif /* defined(__hpux) || defined(SIOCGLIFNUM) */ 4653 numifs = MAXINTERFACES; 4654 4655 if (numifs <= 0) 4656 { 4657 (void) close(s); 4658 return; 4659 } 4660 4661 len = lifc.lifc_len = numifs * sizeof (struct lifreq); 4662 buf = lifc.lifc_buf = xalloc(lifc.lifc_len); 4663# ifndef __hpux 4664 lifc.lifc_family = AF_UNSPEC; 4665 lifc.lifc_flags = 0; 4666# endif /* __hpux */ 4667 if (ioctl(s, SIOCGLIFCONF, (char *)&lifc) < 0) 4668 { 4669 if (tTd(0, 4)) 4670 sm_dprintf("SIOCGLIFCONF failed: %s\n", 4671 sm_errstring(errno)); 4672 (void) close(s); 4673 sm_free(buf); 4674 return; 4675 } 4676 4677 /* scan the list of IP address */ 4678 if (tTd(0, 40)) 4679 sm_dprintf("scanning for interface specific names, lifc_len=%ld\n", 4680 (long) len); 4681 4682 for (i = 0; i < len && i >= 0; ) 4683 { 4684 int flags; 4685 struct lifreq *ifr = (struct lifreq *)&buf[i]; 4686 SOCKADDR *sa = (SOCKADDR *) &ifr->lifr_addr; 4687 int af = ifr->lifr_addr.ss_family; 4688 char *addr; 4689 char *name; 4690 struct in6_addr ia6; 4691 struct in_addr ia; 4692# ifdef SIOCGLIFFLAGS 4693 struct lifreq ifrf; 4694# endif /* SIOCGLIFFLAGS */ 4695 char ip_addr[256]; 4696 char buf6[INET6_ADDRSTRLEN]; 4697 4698 /* 4699 ** We must close and recreate the socket each time 4700 ** since we don't know what type of socket it is now 4701 ** (each status function may change it). 4702 */ 4703 4704 (void) close(s); 4705 4706 s = socket(af, SOCK_DGRAM, 0); 4707 if (s == -1) 4708 { 4709 sm_free(buf); /* XXX */ 4710 return; 4711 } 4712 4713 /* 4714 ** If we don't have a complete ifr structure, 4715 ** don't try to use it. 4716 */ 4717 4718 if ((len - i) < sizeof *ifr) 4719 break; 4720 4721# ifdef BSD4_4_SOCKADDR 4722 if (sa->sa.sa_len > sizeof ifr->lifr_addr) 4723 i += sizeof ifr->lifr_name + sa->sa.sa_len; 4724 else 4725# endif /* BSD4_4_SOCKADDR */ 4726 i += sizeof *ifr; 4727 4728 if (tTd(0, 20)) 4729 sm_dprintf("%s\n", anynet_ntoa(sa)); 4730 4731 if (af != AF_INET && af != AF_INET6) 4732 continue; 4733 4734# ifdef SIOCGLIFFLAGS 4735 memset(&ifrf, '\0', sizeof(struct lifreq)); 4736 (void) sm_strlcpy(ifrf.lifr_name, ifr->lifr_name, 4737 sizeof(ifrf.lifr_name)); 4738 if (ioctl(s, SIOCGLIFFLAGS, (char *) &ifrf) < 0) 4739 { 4740 if (tTd(0, 4)) 4741 sm_dprintf("SIOCGLIFFLAGS failed: %s\n", 4742 sm_errstring(errno)); 4743 continue; 4744 } 4745 4746 name = ifr->lifr_name; 4747 flags = ifrf.lifr_flags; 4748 4749 if (tTd(0, 41)) 4750 sm_dprintf("\tflags: %lx\n", (unsigned long) flags); 4751 4752 if (!bitset(IFF_UP, flags)) 4753 continue; 4754# endif /* SIOCGLIFFLAGS */ 4755 4756 ip_addr[0] = '\0'; 4757 4758 /* extract IP address from the list*/ 4759 switch (af) 4760 { 4761 case AF_INET6: 4762# ifdef __KAME__ 4763 /* convert into proper scoped address */ 4764 if ((IN6_IS_ADDR_LINKLOCAL(&sa->sin6.sin6_addr) || 4765 IN6_IS_ADDR_SITELOCAL(&sa->sin6.sin6_addr)) && 4766 sa->sin6.sin6_scope_id == 0) 4767 { 4768 struct in6_addr *ia6p; 4769 4770 ia6p = &sa->sin6.sin6_addr; 4771 sa->sin6.sin6_scope_id = ntohs(ia6p->s6_addr[3] | 4772 ((unsigned int)ia6p->s6_addr[2] << 8)); 4773 ia6p->s6_addr[2] = ia6p->s6_addr[3] = 0; 4774 } 4775# endif /* __KAME__ */ 4776 ia6 = sa->sin6.sin6_addr; 4777 if (IN6_IS_ADDR_UNSPECIFIED(&ia6)) 4778 { 4779 addr = anynet_ntop(&ia6, buf6, sizeof buf6); 4780 message("WARNING: interface %s is UP with %s address", 4781 name, addr == NULL ? "(NULL)" : addr); 4782 continue; 4783 } 4784 4785 /* save IP address in text from */ 4786 addr = anynet_ntop(&ia6, buf6, sizeof buf6); 4787 if (addr != NULL) 4788 (void) sm_snprintf(ip_addr, sizeof ip_addr, 4789 "[%.*s]", 4790 (int) sizeof ip_addr - 3, 4791 addr); 4792 break; 4793 4794 case AF_INET: 4795 ia = sa->sin.sin_addr; 4796 if (ia.s_addr == INADDR_ANY || 4797 ia.s_addr == INADDR_NONE) 4798 { 4799 message("WARNING: interface %s is UP with %s address", 4800 name, inet_ntoa(ia)); 4801 continue; 4802 } 4803 4804 /* save IP address in text from */ 4805 (void) sm_snprintf(ip_addr, sizeof ip_addr, "[%.*s]", 4806 (int) sizeof ip_addr - 3, inet_ntoa(ia)); 4807 break; 4808 } 4809 4810 if (*ip_addr == '\0') 4811 continue; 4812 4813 if (!wordinclass(ip_addr, 'w')) 4814 { 4815 setclass('w', ip_addr); 4816 if (tTd(0, 4)) 4817 sm_dprintf("\ta.k.a.: %s\n", ip_addr); 4818 } 4819 4820# ifdef SIOCGLIFFLAGS 4821 /* skip "loopback" interface "lo" */ 4822 if (DontProbeInterfaces == DPI_SKIPLOOPBACK && 4823 bitset(IFF_LOOPBACK, flags)) 4824 continue; 4825# endif /* SIOCGLIFFLAGS */ 4826 (void) add_hostnames(sa); 4827 } 4828 sm_free(buf); /* XXX */ 4829 (void) close(s); 4830# else /* NETINET6 && defined(SIOCGLIFCONF) */ 4831# if defined(SIOCGIFCONF) && !SIOCGIFCONF_IS_BROKEN 4832 int s; 4833 int i; 4834 struct ifconf ifc; 4835 int numifs; 4836 4837 s = socket(AF_INET, SOCK_DGRAM, 0); 4838 if (s == -1) 4839 return; 4840 4841 /* get the list of known IP address from the kernel */ 4842# if defined(SIOCGIFNUM) && !SIOCGIFNUM_IS_BROKEN 4843 if (ioctl(s, SIOCGIFNUM, (char *) &numifs) < 0) 4844 { 4845 /* can't get number of interfaces -- fall back */ 4846 if (tTd(0, 4)) 4847 sm_dprintf("SIOCGIFNUM failed: %s\n", 4848 sm_errstring(errno)); 4849 numifs = -1; 4850 } 4851 else if (tTd(0, 42)) 4852 sm_dprintf("system has %d interfaces\n", numifs); 4853 if (numifs < 0) 4854# endif /* defined(SIOCGIFNUM) && !SIOCGIFNUM_IS_BROKEN */ 4855 numifs = MAXINTERFACES; 4856 4857 if (numifs <= 0) 4858 { 4859 (void) close(s); 4860 return; 4861 } 4862 ifc.ifc_len = numifs * sizeof (struct ifreq); 4863 ifc.ifc_buf = xalloc(ifc.ifc_len); 4864 if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) 4865 { 4866 if (tTd(0, 4)) 4867 sm_dprintf("SIOCGIFCONF failed: %s\n", 4868 sm_errstring(errno)); 4869 (void) close(s); 4870 return; 4871 } 4872 4873 /* scan the list of IP address */ 4874 if (tTd(0, 40)) 4875 sm_dprintf("scanning for interface specific names, ifc_len=%d\n", 4876 ifc.ifc_len); 4877 4878 for (i = 0; i < ifc.ifc_len && i >= 0; ) 4879 { 4880 int af; 4881 struct ifreq *ifr = (struct ifreq *) &ifc.ifc_buf[i]; 4882 SOCKADDR *sa = (SOCKADDR *) &ifr->ifr_addr; 4883# if NETINET6 4884 char *addr; 4885 struct in6_addr ia6; 4886# endif /* NETINET6 */ 4887 struct in_addr ia; 4888# ifdef SIOCGIFFLAGS 4889 struct ifreq ifrf; 4890# endif /* SIOCGIFFLAGS */ 4891 char ip_addr[256]; 4892# if NETINET6 4893 char buf6[INET6_ADDRSTRLEN]; 4894# endif /* NETINET6 */ 4895 4896 /* 4897 ** If we don't have a complete ifr structure, 4898 ** don't try to use it. 4899 */ 4900 4901 if ((ifc.ifc_len - i) < sizeof *ifr) 4902 break; 4903 4904# ifdef BSD4_4_SOCKADDR 4905 if (sa->sa.sa_len > sizeof ifr->ifr_addr) 4906 i += sizeof ifr->ifr_name + sa->sa.sa_len; 4907 else 4908# endif /* BSD4_4_SOCKADDR */ 4909 i += sizeof *ifr; 4910 4911 if (tTd(0, 20)) 4912 sm_dprintf("%s\n", anynet_ntoa(sa)); 4913 4914 af = ifr->ifr_addr.sa_family; 4915 if (af != AF_INET 4916# if NETINET6 4917 && af != AF_INET6 4918# endif /* NETINET6 */ 4919 ) 4920 continue; 4921 4922# ifdef SIOCGIFFLAGS 4923 memset(&ifrf, '\0', sizeof(struct ifreq)); 4924 (void) sm_strlcpy(ifrf.ifr_name, ifr->ifr_name, 4925 sizeof(ifrf.ifr_name)); 4926 (void) ioctl(s, SIOCGIFFLAGS, (char *) &ifrf); 4927 if (tTd(0, 41)) 4928 sm_dprintf("\tflags: %lx\n", 4929 (unsigned long) ifrf.ifr_flags); 4930# define IFRFREF ifrf 4931# else /* SIOCGIFFLAGS */ 4932# define IFRFREF (*ifr) 4933# endif /* SIOCGIFFLAGS */ 4934 4935 if (!bitset(IFF_UP, IFRFREF.ifr_flags)) 4936 continue; 4937 4938 ip_addr[0] = '\0'; 4939 4940 /* extract IP address from the list*/ 4941 switch (af) 4942 { 4943 case AF_INET: 4944 ia = sa->sin.sin_addr; 4945 if (ia.s_addr == INADDR_ANY || 4946 ia.s_addr == INADDR_NONE) 4947 { 4948 message("WARNING: interface %s is UP with %s address", 4949 ifr->ifr_name, inet_ntoa(ia)); 4950 continue; 4951 } 4952 4953 /* save IP address in text from */ 4954 (void) sm_snprintf(ip_addr, sizeof ip_addr, "[%.*s]", 4955 (int) sizeof ip_addr - 3, 4956 inet_ntoa(ia)); 4957 break; 4958 4959# if NETINET6 4960 case AF_INET6: 4961# ifdef __KAME__ 4962 /* convert into proper scoped address */ 4963 if ((IN6_IS_ADDR_LINKLOCAL(&sa->sin6.sin6_addr) || 4964 IN6_IS_ADDR_SITELOCAL(&sa->sin6.sin6_addr)) && 4965 sa->sin6.sin6_scope_id == 0) 4966 { 4967 struct in6_addr *ia6p; 4968 4969 ia6p = &sa->sin6.sin6_addr; 4970 sa->sin6.sin6_scope_id = ntohs(ia6p->s6_addr[3] | 4971 ((unsigned int)ia6p->s6_addr[2] << 8)); 4972 ia6p->s6_addr[2] = ia6p->s6_addr[3] = 0; 4973 } 4974# endif /* __KAME__ */ 4975 ia6 = sa->sin6.sin6_addr; 4976 if (IN6_IS_ADDR_UNSPECIFIED(&ia6)) 4977 { 4978 addr = anynet_ntop(&ia6, buf6, sizeof buf6); 4979 message("WARNING: interface %s is UP with %s address", 4980 ifr->ifr_name, 4981 addr == NULL ? "(NULL)" : addr); 4982 continue; 4983 } 4984 4985 /* save IP address in text from */ 4986 addr = anynet_ntop(&ia6, buf6, sizeof buf6); 4987 if (addr != NULL) 4988 (void) sm_snprintf(ip_addr, sizeof ip_addr, 4989 "[%.*s]", 4990 (int) sizeof ip_addr - 3, 4991 addr); 4992 break; 4993 4994# endif /* NETINET6 */ 4995 } 4996 4997 if (ip_addr[0] == '\0') 4998 continue; 4999 5000 if (!wordinclass(ip_addr, 'w')) 5001 { 5002 setclass('w', ip_addr); 5003 if (tTd(0, 4)) 5004 sm_dprintf("\ta.k.a.: %s\n", ip_addr); 5005 } 5006 5007 /* skip "loopback" interface "lo" */ 5008 if (DontProbeInterfaces == DPI_SKIPLOOPBACK && 5009 bitset(IFF_LOOPBACK, IFRFREF.ifr_flags)) 5010 continue; 5011 5012 (void) add_hostnames(sa); 5013 } 5014 sm_free(ifc.ifc_buf); /* XXX */ 5015 (void) close(s); 5016# undef IFRFREF 5017# endif /* defined(SIOCGIFCONF) && !SIOCGIFCONF_IS_BROKEN */ 5018# endif /* NETINET6 && defined(SIOCGLIFCONF) */ 5019} 5020/* 5021** ISLOOPBACK -- is socket address in the loopback net? 5022** 5023** Parameters: 5024** sa -- socket address. 5025** 5026** Returns: 5027** true -- is socket address in the loopback net? 5028** false -- otherwise 5029** 5030*/ 5031 5032bool 5033isloopback(sa) 5034 SOCKADDR sa; 5035{ 5036#if NETINET6 5037 if (IN6_IS_ADDR_LOOPBACK(&sa.sin6.sin6_addr)) 5038 return true; 5039#else /* NETINET6 */ 5040 /* XXX how to correctly extract IN_LOOPBACKNET part? */ 5041 if (((ntohl(sa.sin.sin_addr.s_addr) & IN_CLASSA_NET) 5042 >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) 5043 return true; 5044#endif /* NETINET6 */ 5045 return false; 5046} 5047/* 5048** GET_NUM_PROCS_ONLINE -- return the number of processors currently online 5049** 5050** Parameters: 5051** none. 5052** 5053** Returns: 5054** The number of processors online. 5055*/ 5056 5057static int 5058get_num_procs_online() 5059{ 5060 int nproc = 0; 5061 5062#ifdef USESYSCTL 5063# if defined(CTL_HW) && defined(HW_NCPU) 5064 size_t sz; 5065 int mib[2]; 5066 5067 mib[0] = CTL_HW; 5068 mib[1] = HW_NCPU; 5069 sz = (size_t) sizeof nproc; 5070 (void) sysctl(mib, 2, &nproc, &sz, NULL, 0); 5071# endif /* defined(CTL_HW) && defined(HW_NCPU) */ 5072#else /* USESYSCTL */ 5073# ifdef _SC_NPROCESSORS_ONLN 5074 nproc = (int) sysconf(_SC_NPROCESSORS_ONLN); 5075# else /* _SC_NPROCESSORS_ONLN */ 5076# ifdef __hpux 5077# include <sys/pstat.h> 5078 struct pst_dynamic psd; 5079 5080 if (pstat_getdynamic(&psd, sizeof(psd), (size_t)1, 0) != -1) 5081 nproc = psd.psd_proc_cnt; 5082# endif /* __hpux */ 5083# endif /* _SC_NPROCESSORS_ONLN */ 5084#endif /* USESYSCTL */ 5085 5086 if (nproc <= 0) 5087 nproc = 1; 5088 return nproc; 5089} 5090/* 5091** SEED_RANDOM -- seed the random number generator 5092** 5093** Parameters: 5094** none 5095** 5096** Returns: 5097** none 5098*/ 5099 5100void 5101seed_random() 5102{ 5103#if HASSRANDOMDEV 5104 srandomdev(); 5105#else /* HASSRANDOMDEV */ 5106 long seed; 5107 struct timeval t; 5108 5109 seed = (long) CurrentPid; 5110 if (gettimeofday(&t, NULL) >= 0) 5111 seed += t.tv_sec + t.tv_usec; 5112 5113# if HASRANDOM 5114 (void) srandom(seed); 5115# else /* HASRANDOM */ 5116 (void) srand((unsigned int) seed); 5117# endif /* HASRANDOM */ 5118#endif /* HASSRANDOMDEV */ 5119} 5120/* 5121** SM_SYSLOG -- syslog wrapper to keep messages under SYSLOG_BUFSIZE 5122** 5123** Parameters: 5124** level -- syslog level 5125** id -- envelope ID or NULL (NOQUEUE) 5126** fmt -- format string 5127** arg... -- arguments as implied by fmt. 5128** 5129** Returns: 5130** none 5131*/ 5132 5133/* VARARGS3 */ 5134void 5135#ifdef __STDC__ 5136sm_syslog(int level, const char *id, const char *fmt, ...) 5137#else /* __STDC__ */ 5138sm_syslog(level, id, fmt, va_alist) 5139 int level; 5140 const char *id; 5141 const char *fmt; 5142 va_dcl 5143#endif /* __STDC__ */ 5144{ 5145 static char *buf = NULL; 5146 static size_t bufsize; 5147 char *begin, *end; 5148 int save_errno; 5149 int seq = 1; 5150 int idlen; 5151 char buf0[MAXLINE]; 5152 char *newstring; 5153 extern int SyslogPrefixLen; 5154 SM_VA_LOCAL_DECL 5155 5156 save_errno = errno; 5157 if (id == NULL) 5158 { 5159 id = "NOQUEUE"; 5160 idlen = strlen(id) + SyslogPrefixLen; 5161 } 5162 else if (strcmp(id, NOQID) == 0) 5163 { 5164 id = ""; 5165 idlen = SyslogPrefixLen; 5166 } 5167 else 5168 idlen = strlen(id) + SyslogPrefixLen; 5169 5170 if (buf == NULL) 5171 { 5172 buf = buf0; 5173 bufsize = sizeof buf0; 5174 } 5175 5176 for (;;) 5177 { 5178 int n; 5179 5180 /* print log message into buf */ 5181 SM_VA_START(ap, fmt); 5182 n = sm_vsnprintf(buf, bufsize, fmt, ap); 5183 SM_VA_END(ap); 5184 SM_ASSERT(n > 0); 5185 if (n < bufsize) 5186 break; 5187 5188 /* String too small, redo with correct size */ 5189 bufsize = n + 1; 5190 if (buf != buf0) 5191 { 5192 sm_free(buf); 5193 buf = NULL; 5194 } 5195 buf = sm_malloc_x(bufsize); 5196 } 5197 5198 /* clean up buf after it has been expanded with args */ 5199 newstring = str2prt(buf); 5200 if ((strlen(newstring) + idlen + 1) < SYSLOG_BUFSIZE) 5201 { 5202#if LOG 5203 if (*id == '\0') 5204 syslog(level, "%s", newstring); 5205 else 5206 syslog(level, "%s: %s", id, newstring); 5207#else /* LOG */ 5208 /*XXX should do something more sensible */ 5209 if (*id == '\0') 5210 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT, "%s\n", 5211 newstring); 5212 else 5213 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT, 5214 "%s: %s\n", id, newstring); 5215#endif /* LOG */ 5216 if (buf == buf0) 5217 buf = NULL; 5218 errno = save_errno; 5219 return; 5220 } 5221 5222/* 5223** additional length for splitting: " ..." + 3, where 3 is magic to 5224** have some data for the next entry. 5225*/ 5226 5227#define SL_SPLIT 7 5228 5229 begin = newstring; 5230 idlen += 5; /* strlen("[999]"), see below */ 5231 while (*begin != '\0' && 5232 (strlen(begin) + idlen) > SYSLOG_BUFSIZE) 5233 { 5234 char save; 5235 5236 if (seq >= 999) 5237 { 5238 /* Too many messages */ 5239 break; 5240 } 5241 end = begin + SYSLOG_BUFSIZE - idlen - SL_SPLIT; 5242 while (end > begin) 5243 { 5244 /* Break on comma or space */ 5245 if (*end == ',' || *end == ' ') 5246 { 5247 end++; /* Include separator */ 5248 break; 5249 } 5250 end--; 5251 } 5252 /* No separator, break midstring... */ 5253 if (end == begin) 5254 end = begin + SYSLOG_BUFSIZE - idlen - SL_SPLIT; 5255 save = *end; 5256 *end = 0; 5257#if LOG 5258 syslog(level, "%s[%d]: %s ...", id, seq++, begin); 5259#else /* LOG */ 5260 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT, 5261 "%s[%d]: %s ...\n", id, seq++, begin); 5262#endif /* LOG */ 5263 *end = save; 5264 begin = end; 5265 } 5266 if (seq >= 999) 5267#if LOG 5268 syslog(level, "%s[%d]: log terminated, too many parts", 5269 id, seq); 5270#else /* LOG */ 5271 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT, 5272 "%s[%d]: log terminated, too many parts\n", id, seq); 5273#endif /* LOG */ 5274 else if (*begin != '\0') 5275#if LOG 5276 syslog(level, "%s[%d]: %s", id, seq, begin); 5277#else /* LOG */ 5278 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT, 5279 "%s[%d]: %s\n", id, seq, begin); 5280#endif /* LOG */ 5281 if (buf == buf0) 5282 buf = NULL; 5283 errno = save_errno; 5284} 5285/* 5286** HARD_SYSLOG -- call syslog repeatedly until it works 5287** 5288** Needed on HP-UX, which apparently doesn't guarantee that 5289** syslog succeeds during interrupt handlers. 5290*/ 5291 5292#if defined(__hpux) && !defined(HPUX11) 5293 5294# define MAXSYSLOGTRIES 100 5295# undef syslog 5296# ifdef V4FS 5297# define XCNST const 5298# define CAST (const char *) 5299# else /* V4FS */ 5300# define XCNST 5301# define CAST 5302# endif /* V4FS */ 5303 5304void 5305# ifdef __STDC__ 5306hard_syslog(int pri, XCNST char *msg, ...) 5307# else /* __STDC__ */ 5308hard_syslog(pri, msg, va_alist) 5309 int pri; 5310 XCNST char *msg; 5311 va_dcl 5312# endif /* __STDC__ */ 5313{ 5314 int i; 5315 char buf[SYSLOG_BUFSIZE]; 5316 SM_VA_LOCAL_DECL 5317 5318 SM_VA_START(ap, msg); 5319 (void) sm_vsnprintf(buf, sizeof buf, msg, ap); 5320 SM_VA_END(ap); 5321 5322 for (i = MAXSYSLOGTRIES; --i >= 0 && syslog(pri, CAST "%s", buf) < 0; ) 5323 continue; 5324} 5325 5326# undef CAST 5327#endif /* defined(__hpux) && !defined(HPUX11) */ 5328#if NEEDLOCAL_HOSTNAME_LENGTH 5329/* 5330** LOCAL_HOSTNAME_LENGTH 5331** 5332** This is required to get sendmail to compile against BIND 4.9.x 5333** on Ultrix. 5334** 5335** Unfortunately, a Compaq Y2K patch kit provides it without 5336** bumping __RES in /usr/include/resolv.h so we can't automatically 5337** figure out whether it is needed. 5338*/ 5339 5340int 5341local_hostname_length(hostname) 5342 char *hostname; 5343{ 5344 size_t len_host, len_domain; 5345 5346 if (!*_res.defdname) 5347 res_init(); 5348 len_host = strlen(hostname); 5349 len_domain = strlen(_res.defdname); 5350 if (len_host > len_domain && 5351 (sm_strcasecmp(hostname + len_host - len_domain, 5352 _res.defdname) == 0) && 5353 hostname[len_host - len_domain - 1] == '.') 5354 return len_host - len_domain - 1; 5355 else 5356 return 0; 5357} 5358#endif /* NEEDLOCAL_HOSTNAME_LENGTH */ 5359 5360#if NEEDLINK 5361/* 5362** LINK -- clone a file 5363** 5364** Some OS's lacks link() and hard links. Since sendmail is using 5365** link() as an efficient way to clone files, this implementation 5366** will simply do a file copy. 5367** 5368** NOTE: This link() replacement is not a generic replacement as it 5369** does not handle all of the semantics of the real link(2). 5370** 5371** Parameters: 5372** source -- pathname of existing file. 5373** target -- pathname of link (clone) to be created. 5374** 5375** Returns: 5376** 0 -- success. 5377** -1 -- failure, see errno for details. 5378*/ 5379 5380int 5381link(source, target) 5382 const char *source; 5383 const char *target; 5384{ 5385 int save_errno; 5386 int sff; 5387 int src = -1, dst = -1; 5388 ssize_t readlen; 5389 ssize_t writelen; 5390 char buf[BUFSIZ]; 5391 struct stat st; 5392 5393 sff = SFF_REGONLY|SFF_OPENASROOT; 5394 if (DontLockReadFiles) 5395 sff |= SFF_NOLOCK; 5396 5397 /* Open the original file */ 5398 src = safeopen((char *)source, O_RDONLY, 0, sff); 5399 if (src < 0) 5400 goto fail; 5401 5402 /* Obtain the size and the mode */ 5403 if (fstat(src, &st) < 0) 5404 goto fail; 5405 5406 /* Create the duplicate copy */ 5407 sff &= ~SFF_NOLOCK; 5408 sff |= SFF_CREAT; 5409 dst = safeopen((char *)target, O_CREAT|O_EXCL|O_WRONLY, 5410 st.st_mode, sff); 5411 if (dst < 0) 5412 goto fail; 5413 5414 /* Copy all of the bytes one buffer at a time */ 5415 while ((readlen = read(src, &buf, sizeof(buf))) > 0) 5416 { 5417 ssize_t left = readlen; 5418 char *p = buf; 5419 5420 while (left > 0 && 5421 (writelen = write(dst, p, (size_t) left)) >= 0) 5422 { 5423 left -= writelen; 5424 p += writelen; 5425 } 5426 if (writelen < 0) 5427 break; 5428 } 5429 5430 /* Any trouble reading? */ 5431 if (readlen < 0 || writelen < 0) 5432 goto fail; 5433 5434 /* Close the input file */ 5435 if (close(src) < 0) 5436 { 5437 src = -1; 5438 goto fail; 5439 } 5440 src = -1; 5441 5442 /* Close the output file */ 5443 if (close(dst) < 0) 5444 { 5445 /* don't set dst = -1 here so we unlink the file */ 5446 goto fail; 5447 } 5448 5449 /* Success */ 5450 return 0; 5451 5452 fail: 5453 save_errno = errno; 5454 if (src >= 0) 5455 (void) close(src); 5456 if (dst >= 0) 5457 { 5458 (void) unlink(target); 5459 (void) close(dst); 5460 } 5461 errno = save_errno; 5462 return -1; 5463} 5464#endif /* NEEDLINK */ 5465 5466/* 5467** Compile-Time options 5468*/ 5469 5470char *CompileOptions[] = 5471{ 5472#if NAMED_BIND 5473# if DNSMAP 5474 "DNSMAP", 5475# endif /* DNSMAP */ 5476#endif /* NAMED_BIND */ 5477#if EGD 5478 "EGD", 5479#endif /* EGD */ 5480#if HESIOD 5481 "HESIOD", 5482#endif /* HESIOD */ 5483#if HES_GETMAILHOST 5484 "HES_GETMAILHOST", 5485#endif /* HES_GETMAILHOST */ 5486#if LDAPMAP 5487 "LDAPMAP", 5488#endif /* LDAPMAP */ 5489#if LOG 5490 "LOG", 5491#endif /* LOG */ 5492#if MAP_NSD 5493 "MAP_NSD", 5494#endif /* MAP_NSD */ 5495#if MAP_REGEX 5496 "MAP_REGEX", 5497#endif /* MAP_REGEX */ 5498#if MATCHGECOS 5499 "MATCHGECOS", 5500#endif /* MATCHGECOS */ 5501#if MILTER 5502 "MILTER", 5503#endif /* MILTER */ 5504#if MIME7TO8 5505 "MIME7TO8", 5506#endif /* MIME7TO8 */ 5507#if MIME8TO7 5508 "MIME8TO7", 5509#endif /* MIME8TO7 */ 5510#if NAMED_BIND 5511 "NAMED_BIND", 5512#endif /* NAMED_BIND */ 5513#if NDBM 5514 "NDBM", 5515#endif /* NDBM */ 5516#if NETINET 5517 "NETINET", 5518#endif /* NETINET */ 5519#if NETINET6 5520 "NETINET6", 5521#endif /* NETINET6 */ 5522#if NETINFO 5523 "NETINFO", 5524#endif /* NETINFO */ 5525#if NETISO 5526 "NETISO", 5527#endif /* NETISO */ 5528#if NETNS 5529 "NETNS", 5530#endif /* NETNS */ 5531#if NETUNIX 5532 "NETUNIX", 5533#endif /* NETUNIX */ 5534#if NETX25 5535 "NETX25", 5536#endif /* NETX25 */ 5537#if NEWDB 5538 "NEWDB", 5539#endif /* NEWDB */ 5540#if NIS 5541 "NIS", 5542#endif /* NIS */ 5543#if NISPLUS 5544 "NISPLUS", 5545#endif /* NISPLUS */ 5546#if NO_DH 5547 "NO_DH", 5548#endif /* NO_DH */ 5549#if PH_MAP 5550 "PH_MAP", 5551#endif /* PH_MAP */ 5552#ifdef PICKY_HELO_CHECK 5553 "PICKY_HELO_CHECK", 5554#endif /* PICKY_HELO_CHECK */ 5555#if PIPELINING 5556 "PIPELINING", 5557#endif /* PIPELINING */ 5558#if SASL 5559 "SASL", 5560#endif /* SASL */ 5561#if SCANF 5562 "SCANF", 5563#endif /* SCANF */ 5564#if SMTPDEBUG 5565 "SMTPDEBUG", 5566#endif /* SMTPDEBUG */ 5567#if STARTTLS 5568 "STARTTLS", 5569#endif /* STARTTLS */ 5570#if SUID_ROOT_FILES_OK 5571 "SUID_ROOT_FILES_OK", 5572#endif /* SUID_ROOT_FILES_OK */ 5573#if TCPWRAPPERS 5574 "TCPWRAPPERS", 5575#endif /* TCPWRAPPERS */ 5576#if TLS_NO_RSA 5577 "TLS_NO_RSA", 5578#endif /* TLS_NO_RSA */ 5579#if TLS_VRFY_PER_CTX 5580 "TLS_VRFY_PER_CTX", 5581#endif /* TLS_VRFY_PER_CTX */ 5582#if USERDB 5583 "USERDB", 5584#endif /* USERDB */ 5585#if USE_LDAP_INIT 5586 "USE_LDAP_INIT", 5587#endif /* USE_LDAP_INIT */ 5588#if XDEBUG 5589 "XDEBUG", 5590#endif /* XDEBUG */ 5591#if XLA 5592 "XLA", 5593#endif /* XLA */ 5594 NULL 5595}; 5596 5597 5598/* 5599** OS compile options. 5600*/ 5601 5602char *OsCompileOptions[] = 5603{ 5604#if ADDRCONFIG_IS_BROKEN 5605 "ADDRCONFIG_IS_BROKEN", 5606#endif /* ADDRCONFIG_IS_BROKEN */ 5607#ifdef AUTO_NETINFO_HOSTS 5608 "AUTO_NETINFO_HOSTS", 5609#endif /* AUTO_NETINFO_HOSTS */ 5610#ifdef AUTO_NIS_ALIASES 5611 "AUTO_NIS_ALIASES", 5612#endif /* AUTO_NIS_ALIASES */ 5613#if BROKEN_RES_SEARCH 5614 "BROKEN_RES_SEARCH", 5615#endif /* BROKEN_RES_SEARCH */ 5616#ifdef BSD4_4_SOCKADDR 5617 "BSD4_4_SOCKADDR", 5618#endif /* BSD4_4_SOCKADDR */ 5619#if BOGUS_O_EXCL 5620 "BOGUS_O_EXCL", 5621#endif /* BOGUS_O_EXCL */ 5622#if DEC_OSF_BROKEN_GETPWENT 5623 "DEC_OSF_BROKEN_GETPWENT", 5624#endif /* DEC_OSF_BROKEN_GETPWENT */ 5625#if FAST_PID_RECYCLE 5626 "FAST_PID_RECYCLE", 5627#endif /* FAST_PID_RECYCLE */ 5628#if HASFCHOWN 5629 "HASFCHOWN", 5630#endif /* HASFCHOWN */ 5631#if HASFCHMOD 5632 "HASFCHMOD", 5633#endif /* HASFCHMOD */ 5634#if HASFLOCK 5635 "HASFLOCK", 5636#endif /* HASFLOCK */ 5637#if HASGETDTABLESIZE 5638 "HASGETDTABLESIZE", 5639#endif /* HASGETDTABLESIZE */ 5640#if HASGETUSERSHELL 5641 "HASGETUSERSHELL", 5642#endif /* HASGETUSERSHELL */ 5643#if HASINITGROUPS 5644 "HASINITGROUPS", 5645#endif /* HASINITGROUPS */ 5646#if HASLSTAT 5647 "HASLSTAT", 5648#endif /* HASLSTAT */ 5649#if HASNICE 5650 "HASNICE", 5651#endif /* HASNICE */ 5652#if HASRANDOM 5653 "HASRANDOM", 5654#endif /* HASRANDOM */ 5655#if HASRRESVPORT 5656 "HASRRESVPORT", 5657#endif /* HASRRESVPORT */ 5658#if HASSETEGID 5659 "HASSETEGID", 5660#endif /* HASSETEGID */ 5661#if HASSETLOGIN 5662 "HASSETLOGIN", 5663#endif /* HASSETLOGIN */ 5664#if HASSETREGID 5665 "HASSETREGID", 5666#endif /* HASSETREGID */ 5667#if HASSETRESGID 5668 "HASSETRESGID", 5669#endif /* HASSETRESGID */ 5670#if HASSETREUID 5671 "HASSETREUID", 5672#endif /* HASSETREUID */ 5673#if HASSETRLIMIT 5674 "HASSETRLIMIT", 5675#endif /* HASSETRLIMIT */ 5676#if HASSETSID 5677 "HASSETSID", 5678#endif /* HASSETSID */ 5679#if HASSETUSERCONTEXT 5680 "HASSETUSERCONTEXT", 5681#endif /* HASSETUSERCONTEXT */ 5682#if HASSETVBUF 5683 "HASSETVBUF", 5684#endif /* HASSETVBUF */ 5685#if HAS_ST_GEN 5686 "HAS_ST_GEN", 5687#endif /* HAS_ST_GEN */ 5688#if HASSRANDOMDEV 5689 "HASSRANDOMDEV", 5690#endif /* HASSRANDOMDEV */ 5691#if HASURANDOMDEV 5692 "HASURANDOMDEV", 5693#endif /* HASURANDOMDEV */ 5694#if HASSTRERROR 5695 "HASSTRERROR", 5696#endif /* HASSTRERROR */ 5697#if HASULIMIT 5698 "HASULIMIT", 5699#endif /* HASULIMIT */ 5700#if HASUNAME 5701 "HASUNAME", 5702#endif /* HASUNAME */ 5703#if HASUNSETENV 5704 "HASUNSETENV", 5705#endif /* HASUNSETENV */ 5706#if HASWAITPID 5707 "HASWAITPID", 5708#endif /* HASWAITPID */ 5709#if IDENTPROTO 5710 "IDENTPROTO", 5711#endif /* IDENTPROTO */ 5712#if IP_SRCROUTE 5713 "IP_SRCROUTE", 5714#endif /* IP_SRCROUTE */ 5715#if O_EXLOCK && HASFLOCK && !BOGUS_O_EXCL 5716 "LOCK_ON_OPEN", 5717#endif /* O_EXLOCK && HASFLOCK && !BOGUS_O_EXCL */ 5718#if NEEDFSYNC 5719 "NEEDFSYNC", 5720#endif /* NEEDFSYNC */ 5721#if NEEDLINK 5722 "NEEDLINK", 5723#endif /* NEEDLINK */ 5724#if NEEDLOCAL_HOSTNAME_LENGTH 5725 "NEEDLOCAL_HOSTNAME_LENGTH", 5726#endif /* NEEDLOCAL_HOSTNAME_LENGTH */ 5727#if NEEDSGETIPNODE 5728 "NEEDSGETIPNODE", 5729#endif /* NEEDSGETIPNODE */ 5730#if NEEDSTRSTR 5731 "NEEDSTRSTR", 5732#endif /* NEEDSTRSTR */ 5733#if NEEDSTRTOL 5734 "NEEDSTRTOL", 5735#endif /* NEEDSTRTOL */ 5736#ifdef NO_GETSERVBYNAME 5737 "NO_GETSERVBYNAME", 5738#endif /* NO_GETSERVBYNAME */ 5739#if NOFTRUNCATE 5740 "NOFTRUNCATE", 5741#endif /* NOFTRUNCATE */ 5742#if REQUIRES_DIR_FSYNC 5743 "REQUIRES_DIR_FSYNC", 5744#endif /* REQUIRES_DIR_FSYNC */ 5745#if RLIMIT_NEEDS_SYS_TIME_H 5746 "RLIMIT_NEEDS_SYS_TIME_H", 5747#endif /* RLIMIT_NEEDS_SYS_TIME_H */ 5748#if SAFENFSPATHCONF 5749 "SAFENFSPATHCONF", 5750#endif /* SAFENFSPATHCONF */ 5751#if SECUREWARE 5752 "SECUREWARE", 5753#endif /* SECUREWARE */ 5754#if SHARE_V1 5755 "SHARE_V1", 5756#endif /* SHARE_V1 */ 5757#if SIOCGIFCONF_IS_BROKEN 5758 "SIOCGIFCONF_IS_BROKEN", 5759#endif /* SIOCGIFCONF_IS_BROKEN */ 5760#if SIOCGIFNUM_IS_BROKEN 5761 "SIOCGIFNUM_IS_BROKEN", 5762#endif /* SIOCGIFNUM_IS_BROKEN */ 5763#if SNPRINTF_IS_BROKEN 5764 "SNPRINTF_IS_BROKEN", 5765#endif /* SNPRINTF_IS_BROKEN */ 5766#if SO_REUSEADDR_IS_BROKEN 5767 "SO_REUSEADDR_IS_BROKEN", 5768#endif /* SO_REUSEADDR_IS_BROKEN */ 5769#if SYS5SETPGRP 5770 "SYS5SETPGRP", 5771#endif /* SYS5SETPGRP */ 5772#if SYSTEM5 5773 "SYSTEM5", 5774#endif /* SYSTEM5 */ 5775#if USE_DOUBLE_FORK 5776 "USE_DOUBLE_FORK", 5777#endif /* USE_DOUBLE_FORK */ 5778#if USE_ENVIRON 5779 "USE_ENVIRON", 5780#endif /* USE_ENVIRON */ 5781#if USE_SA_SIGACTION 5782 "USE_SA_SIGACTION", 5783#endif /* USE_SA_SIGACTION */ 5784#if USE_SIGLONGJMP 5785 "USE_SIGLONGJMP", 5786#endif /* USE_SIGLONGJMP */ 5787#if USEGETCONFATTR 5788 "USEGETCONFATTR", 5789#endif /* USEGETCONFATTR */ 5790#if USESETEUID 5791 "USESETEUID", 5792#endif /* USESETEUID */ 5793#ifdef USESYSCTL 5794 "USESYSCTL", 5795#endif /* USESYSCTL */ 5796#if USING_NETSCAPE_LDAP 5797 "USING_NETSCAPE_LDAP", 5798#endif /* USING_NETSCAPE_LDAP */ 5799#ifdef WAITUNION 5800 "WAITUNION", 5801#endif /* WAITUNION */ 5802 NULL 5803}; 5804 5805/* 5806** FFR compile options. 5807*/ 5808 5809char *FFRCompileOptions[] = 5810{ 5811#if _FFR_ADAPTIVE_EOL 5812 "_FFR_ADAPTIVE_EOL", 5813#endif /* _FFR_ADAPTIVE_EOL */ 5814#if _FFR_ALLOW_SASLINFO 5815 "_FFR_ALLOW_SASLINFO", 5816#endif /* _FFR_ALLOW_SASLINFO */ 5817#if _FFR_ALLOW_S0_ERROR_4XX 5818 "_FFR_ALLOW_S0_ERROR_4XX", 5819#endif /* _FFR_ALLOW_S0_ERROR_4XX */ 5820#if _FFR_BESTMX_BETTER_TRUNCATION 5821 "_FFR_BESTMX_BETTER_TRUNCATION", 5822#endif /* _FFR_BESTMX_BETTER_TRUNCATION */ 5823#if _FFR_CACHE_LPC 5824/* Christophe Wolfhugel of France Telecom Oleane */ 5825 "_FFR_CACHE_LPC", 5826#endif /* _FFR_CACHE_LPC */ 5827#if _FFR_CATCH_BROKEN_MTAS 5828 "_FFR_CATCH_BROKEN_MTAS", 5829#endif /* _FFR_CATCH_BROKEN_MTAS */ 5830#if _FFR_CATCH_LONG_STRINGS 5831 "_FFR_CATCH_LONG_STRINGS", 5832#endif /* _FFR_CATCH_LONG_STRINGS */ 5833#if _FFR_CHECK_EOM 5834 "_FFR_CHECK_EOM", 5835#endif /* _FFR_CHECK_EOM */ 5836#if _FFR_CONTROL_MSTAT 5837 "_FFR_CONTROL_MSTAT", 5838#endif /* _FFR_CONTROL_MSTAT */ 5839#if _FFR_DAEMON_NETUNIX 5840 "_FFR_DAEMON_NETUNIX", 5841#endif /* _FFR_DAEMON_NETUNIX */ 5842#if _FFR_DEPRECATE_MAILER_FLAG_I 5843 "_FFR_DEPRECATE_MAILER_FLAG_I", 5844#endif /* _FFR_DEPRECATE_MAILER_FLAG_I */ 5845#if _FFR_DIGUNIX_SAFECHOWN 5846/* Problem noted by Anne Bennett of Concordia University */ 5847 "_FFR_DIGUNIX_SAFECHOWN", 5848#endif /* _FFR_DIGUNIX_SAFECHOWN */ 5849#if _FFR_DNSMAP_ALIASABLE 5850/* Don Lewis of TDK */ 5851 "_FFR_DNSMAP_ALIASABLE", 5852#endif /* _FFR_DNSMAP_ALIASABLE */ 5853#if _FFR_DNSMAP_BASE 5854 "_FFR_DNSMAP_BASE", 5855#endif /* _FFR_DNSMAP_BASE */ 5856#if _FFR_DNSMAP_MULTI 5857 "_FFR_DNSMAP_MULTI", 5858# if _FFR_DNSMAP_MULTILIMIT 5859 "_FFR_DNSMAP_MULTILIMIT", 5860# endif /* _FFR_DNSMAP_MULTILIMIT */ 5861#endif /* _FFR_DNSMAP_MULTI */ 5862#if _FFR_DONTLOCKFILESFORREAD_OPTION 5863 "_FFR_DONTLOCKFILESFORREAD_OPTION", 5864#endif /* _FFR_DONTLOCKFILESFORREAD_OPTION */ 5865# if _FFR_DONT_STOP_LOOKING 5866/* Noted by Neil Rickert of Northern Illinois University */ 5867 "_FFR_DONT_STOP_LOOKING", 5868# endif /* _FFR_DONT_STOP_LOOKING */ 5869#if _FFR_DOTTED_USERNAMES 5870 "_FFR_DOTTED_USERNAMES", 5871#endif /* _FFR_DOTTED_USERNAMES */ 5872#if _FFR_DROP_TRUSTUSER_WARNING 5873 "_FFR_DROP_TRUSTUSER_WARNING", 5874#endif /* _FFR_DROP_TRUSTUSER_WARNING */ 5875#if _FFR_FIX_DASHT 5876 "_FFR_FIX_DASHT", 5877#endif /* _FFR_FIX_DASHT */ 5878#if _FFR_FORWARD_SYSERR 5879 "_FFR_FORWARD_SYSERR", 5880#endif /* _FFR_FORWARD_SYSERR */ 5881#if _FFR_GEN_ORCPT 5882 "_FFR_GEN_ORCPT", 5883#endif /* _FFR_GEN_ORCPT */ 5884#if _FFR_GROUPREADABLEAUTHINFOFILE 5885 "_FFR_GROUPREADABLEAUTHINFOFILE", 5886#endif /* _FFR_GROUPREADABLEAUTHINFOFILE */ 5887#if _FFR_HANDLE_ISO8859_GECOS 5888/* Peter Eriksson of Linkopings universitet */ 5889 "_FFR_HANDLE_ISO8859_GECOS", 5890#endif /* _FFR_HANDLE_ISO8859_GECOS */ 5891#if _FFR_HDR_TYPE 5892 "_FFR_HDR_TYPE", 5893#endif /* _FFR_HDR_TYPE */ 5894#if _FFR_HPUX_NSSWITCH 5895 "_FFR_HPUX_NSSWITCH", 5896#endif /* _FFR_HPUX_NSSWITCH */ 5897#if _FFR_IGNORE_EXT_ON_HELO 5898 "_FFR_IGNORE_EXT_ON_HELO", 5899#endif /* _FFR_IGNORE_EXT_ON_HELO */ 5900#if _FFR_LDAP_RECURSION 5901/* Andrew Baucom */ 5902 "_FFR_LDAP_RECURSION", 5903#endif /* _FFR_LDAP_RECURSION */ 5904#if _FFR_LDAP_SETVERSION 5905 "_FFR_LDAP_SETVERSION", 5906#endif /* _FFR_LDAP_SETVERSION */ 5907#if _FFR_LDAP_URI 5908 "_FFR_LDAP_URI", 5909#endif /* _FFR_LDAP_URI */ 5910#if _FFR_MAX_FORWARD_ENTRIES 5911/* Randall S. Winchester of the University of Maryland */ 5912 "_FFR_MAX_FORWARD_ENTRIES", 5913#endif /* _FFR_MAX_FORWARD_ENTRIES */ 5914#if MILTER 5915# if _FFR_MILTER_PERDAEMON 5916 "_FFR_MILTER_PERDAEMON", 5917# endif /* _FFR_MILTER_PERDAEMON */ 5918#endif /* MILTER */ 5919#if _FFR_NODELAYDSN_ON_HOLD 5920/* Steven Pitzl */ 5921 "_FFR_NODELAYDSN_ON_HOLD", 5922#endif /* _FFR_NODELAYDSN_ON_HOLD */ 5923#if _FFR_NO_PIPE 5924 "_FFR_NO_PIPE", 5925#endif /* _FFR_NO_PIPE */ 5926#if _FFR_QUARANTINE 5927 "_FFR_QUARANTINE", 5928#endif /* _FFR_QUARANTINE */ 5929#if _FFR_QUEUEDELAY 5930 "_FFR_QUEUEDELAY", 5931#endif /* _FFR_QUEUEDELAY */ 5932#if _FFR_QUEUE_GROUP_SORTORDER 5933/* XXX: Still need to actually use qgrp->qg_sortorder */ 5934 "_FFR_QUEUE_GROUP_SORTORDER", 5935#endif /* _FFR_QUEUE_GROUP_SORTORDER */ 5936#if _FFR_QUEUE_MACRO 5937 "_FFR_QUEUE_MACRO", 5938#endif /* _FFR_QUEUE_MACRO */ 5939#if _FFR_QUEUE_RUN_PARANOIA 5940 "_FFR_QUEUE_RUN_PARANOIA", 5941#endif /* _FFR_QUEUE_RUN_PARANOIA */ 5942#if _FFR_QUEUE_SCHED_DBG 5943 "_FFR_QUEUE_SCHED_DBG", 5944#endif /* _FFR_QUEUE_SCHED_DBG */ 5945#if _FFR_REDIRECTEMPTY 5946 "_FFR_REDIRECTEMPTY", 5947#endif /* _FFR_REDIRECTEMPTY */ 5948#if _FFR_RESET_MACRO_GLOBALS 5949 "_FFR_RESET_MACRO_GLOBALS", 5950#endif /* _FFR_RESET_MACRO_GLOBALS */ 5951#if _FFR_RHS 5952 "_FFR_RHS", 5953#endif /* _FFR_RHS */ 5954#if _FFR_SELECT_SHM 5955 "_FFR_SELECT_SHM", 5956#endif /* _FFR_SELECT_SHM */ 5957#if _FFR_SHM_STATUS 5958 "_FFR_SHM_STATUS", 5959#endif /* _FFR_SHM_STATUS */ 5960#if _FFR_SMTP_SSL 5961 "_FFR_SMTP_SSL", 5962#endif /* _FFR_SMTP_SSL */ 5963#if _FFR_SOFT_BOUNCE 5964 "_FFR_SOFT_BOUNCE", 5965#endif /* _FFR_SOFT_BOUNCE */ 5966#if _FFR_TIMERS 5967 "_FFR_TIMERS", 5968#endif /* _FFR_TIMERS */ 5969#if _FFR_TLS_1 5970 "_FFR_TLS_1", 5971#endif /* _FFR_TLS_1 */ 5972#if _FFR_TRUSTED_QF 5973 "_FFR_TRUSTED_QF", 5974#endif /* _FFR_TRUSTED_QF */ 5975#if _FFR_USE_SETLOGIN 5976/* Peter Philipp */ 5977 "_FFR_USE_SETLOGIN", 5978#endif /* _FFR_USE_SETLOGIN */ 5979 NULL 5980}; 5981 5982