sendmail.h revision 82017
1/* 2 * Copyright (c) 1998-2001 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** SENDMAIL.H -- MTA-specific definitions for sendmail. 15*/ 16 17#ifndef _SENDMAIL_H 18#define _SENDMAIL_H 1 19 20#ifdef _DEFINE 21# define EXTERN 22# ifndef lint 23static char SmailId[] = "@(#)$Id: sendmail.h,v 8.517.4.70 2001/08/14 23:08:12 ca Exp $"; 24# endif /* ! lint */ 25#else /* _DEFINE */ 26# define EXTERN extern 27#endif /* _DEFINE */ 28 29 30#include <unistd.h> 31 32#if SFIO 33# include <sfio/stdio.h> 34# if defined(SFIO_VERSION) && SFIO_VERSION > 20000000L 35 ERROR README: SFIO 2000 does not work with sendmail, use SFIO 1999 instead. 36# endif /* defined(SFIO_VERSION) && SFIO_VERSION > 20000000L */ 37#endif /* SFIO */ 38 39#include <stddef.h> 40#include <stdlib.h> 41#if !SFIO 42# include <stdio.h> 43#endif /* !SFIO */ 44#include <ctype.h> 45#include <setjmp.h> 46#include <string.h> 47#include <time.h> 48# ifdef EX_OK 49# undef EX_OK /* for SVr4.2 SMP */ 50# endif /* EX_OK */ 51#include <sysexits.h> 52 53#include "sendmail/sendmail.h" 54#include "bf.h" 55#include "timers.h" 56 57#ifdef LOG 58# include <syslog.h> 59#endif /* LOG */ 60 61 62 63# if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 64# include <sys/socket.h> 65# endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 66# if NETUNIX 67# include <sys/un.h> 68# endif /* NETUNIX */ 69# if NETINET || NETINET6 70# include <netinet/in.h> 71# endif /* NETINET || NETINET6 */ 72# if NETINET6 73/* 74** There is no standard yet for IPv6 includes. 75** Specify OS specific implementation in conf.h 76*/ 77# endif /* NETINET6 */ 78# if NETISO 79# include <netiso/iso.h> 80# endif /* NETISO */ 81# if NETNS 82# include <netns/ns.h> 83# endif /* NETNS */ 84# if NETX25 85# include <netccitt/x25.h> 86# endif /* NETX25 */ 87 88# if NAMED_BIND 89# include <arpa/nameser.h> 90# ifdef NOERROR 91# undef NOERROR /* avoid <sys/streams.h> conflict */ 92# endif /* NOERROR */ 93# include <resolv.h> 94# endif /* NAMED_BIND */ 95 96# ifdef HESIOD 97# include <hesiod.h> 98# if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) 99# define HESIOD_INIT /* support for the new interface */ 100# endif /* !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) */ 101# endif /* HESIOD */ 102 103#if STARTTLS 104# if !SFIO && !_FFR_TLS_TOREK 105 ERROR README: STARTTLS requires SFIO 106# endif /* !SFIO && !_FFR_TLS_TOREK */ 107# if SFIO && _FFR_TLS_TOREK 108 ERROR README: Can not do both SFIO and _FFR_TLS_TOREK 109# endif /* SFIO && _FFR_TLS_TOREK */ 110# include <openssl/ssl.h> 111#endif /* STARTTLS */ 112 113#if SASL /* include the sasl include files if we have them */ 114# include <sasl.h> 115# if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) 116# define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP 117# if SASL == 1 118# undef SASL 119# define SASL SASL_VERSION 120# else /* SASL == 1 */ 121# if SASL != SASL_VERSION 122 ERROR README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION) 123 ERROR README: see README! 124# endif /* SASL != SASL_VERSION */ 125# endif /* SASL == 1 */ 126# else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 127# if SASL == 1 128 ERROR README: please set -DSASL to the version of the CYRUS_SASL library 129 ERROR README: see README! 130# endif /* SASL == 1 */ 131# endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 132#endif /* SASL */ 133 134/* 135** Following are "sort of" configuration constants, but they should 136** be pretty solid on most architectures today. They have to be 137** defined after <arpa/nameser.h> because some versions of that 138** file also define them. In all cases, we can't use sizeof because 139** some systems (e.g., Crays) always treat everything as being at 140** least 64 bits. 141*/ 142 143#ifndef INADDRSZ 144# define INADDRSZ 4 /* size of an IPv4 address in bytes */ 145#endif /* ! INADDRSZ */ 146#ifndef IN6ADDRSZ 147# define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */ 148#endif /* ! IN6ADDRSZ */ 149#ifndef INT16SZ 150# define INT16SZ 2 /* size of a 16 bit integer in bytes */ 151#endif /* ! INT16SZ */ 152#ifndef INT32SZ 153# define INT32SZ 4 /* size of a 32 bit integer in bytes */ 154#endif /* ! INT32SZ */ 155#ifndef INADDR_LOOPBACK 156# define INADDR_LOOPBACK 0x7f000001 /* loopback address */ 157#endif /* ! INADDR_LOOPBACK */ 158 159/* 160** Error return from inet_addr(3), in case not defined in /usr/include. 161*/ 162 163#ifndef INADDR_NONE 164# define INADDR_NONE 0xffffffff 165#endif /* ! INADDR_NONE */ 166 167 168/* forward references for prototypes */ 169typedef struct envelope ENVELOPE; 170typedef struct mailer MAILER; 171 172 /* 173** Address structure. 174** Addresses are stored internally in this structure. 175*/ 176 177struct address 178{ 179 char *q_paddr; /* the printname for the address */ 180 char *q_user; /* user name */ 181 char *q_ruser; /* real user name, or NULL if q_user */ 182 char *q_host; /* host name */ 183 struct mailer *q_mailer; /* mailer to use */ 184 u_long q_flags; /* status flags, see below */ 185 uid_t q_uid; /* user-id of receiver (if known) */ 186 gid_t q_gid; /* group-id of receiver (if known) */ 187 char *q_home; /* home dir (local mailer only) */ 188 char *q_fullname; /* full name if known */ 189 struct address *q_next; /* chain */ 190 struct address *q_alias; /* address this results from */ 191 char *q_owner; /* owner of q_alias */ 192 struct address *q_tchain; /* temporary use chain */ 193 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 194 char *q_status; /* status code for DSNs */ 195 char *q_rstatus; /* remote status message for DSNs */ 196 time_t q_statdate; /* date of status messages */ 197 char *q_statmta; /* MTA generating q_rstatus */ 198 short q_state; /* address state, see below */ 199 short q_specificity; /* how "specific" this address is */ 200}; 201 202typedef struct address ADDRESS; 203 204/* bit values for q_flags */ 205#define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */ 206#define QPRIMARY 0x00000002 /* set from RCPT or argv */ 207#define QNOTREMOTE 0x00000004 /* address not for remote forwarding */ 208#define QSELFREF 0x00000008 /* this address references itself */ 209#define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */ 210#define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */ 211#define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */ 212#define QPINGONFAILURE 0x00000080 /* give return on failure */ 213#define QPINGONDELAY 0x00000100 /* give return on message delay */ 214#define QHASNOTIFY 0x00000200 /* propogate notify parameter */ 215#define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */ 216#define QEXPANDED 0x00000800 /* DSN: undergone list expansion */ 217#define QDELIVERED 0x00001000 /* DSN: successful final delivery */ 218#define QDELAYED 0x00002000 /* DSN: message delayed */ 219#define QALIAS 0x00004000 /* expanded alias */ 220#define QTHISPASS 0x40000000 /* temp: address set this pass */ 221#define QRCPTOK 0x80000000 /* recipient() processed address */ 222 223#define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY) 224 225/* values for q_state */ 226#define QS_OK 0 /* address ok (for now)/not yet tried */ 227#define QS_SENT 1 /* good address, delivery complete */ 228#define QS_BADADDR 2 /* illegal address */ 229#define QS_QUEUEUP 3 /* save address in queue */ 230#define QS_VERIFIED 4 /* verified, but not expanded */ 231#define QS_DONTSEND 5 /* don't send to this address */ 232#define QS_EXPANDED 6 /* QS_DONTSEND: expanded */ 233#define QS_SENDER 7 /* QS_DONTSEND: message sender (MeToo) */ 234#define QS_CLONED 8 /* QS_DONTSEND: addr cloned to split envelope */ 235#define QS_DISCARDED 9 /* QS_DONTSEND: rcpt discarded (EF_DISCARD) */ 236#define QS_REPLACED 10 /* QS_DONTSEND: maplocaluser()/UserDB replaced */ 237#define QS_REMOVED 11 /* QS_DONTSEND: removed (removefromlist()) */ 238#define QS_DUPLICATE 12 /* QS_DONTSEND: duplicate suppressed */ 239#define QS_INCLUDED 13 /* QS_DONTSEND: :include: delivery */ 240 241/* address state testing primitives */ 242#define QS_IS_OK(s) ((s) == QS_OK) 243#define QS_IS_SENT(s) ((s) == QS_SENT) 244#define QS_IS_BADADDR(s) ((s) == QS_BADADDR) 245#define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP) 246#define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED) 247#define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED) 248#define QS_IS_REMOVED(s) ((s) == QS_REMOVED) 249#define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \ 250 (s) == QS_QUEUEUP || \ 251 (s) == QS_VERIFIED) 252#define QS_IS_SENDABLE(s) ((s) == QS_OK || \ 253 (s) == QS_QUEUEUP) 254#define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \ 255 (s) == QS_SENT) 256#define QS_IS_DEAD(s) ((s) == QS_DONTSEND || \ 257 (s) == QS_CLONED || \ 258 (s) == QS_SENDER || \ 259 (s) == QS_DISCARDED || \ 260 (s) == QS_REPLACED || \ 261 (s) == QS_REMOVED || \ 262 (s) == QS_DUPLICATE || \ 263 (s) == QS_INCLUDED || \ 264 (s) == QS_EXPANDED) 265 266 267#define NULLADDR ((ADDRESS *) NULL) 268 269extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 270 271/* functions */ 272extern void cataddr __P((char **, char **, char *, int, int)); 273extern char *crackaddr __P((char *)); 274extern bool emptyaddr __P((ADDRESS *)); 275extern ADDRESS *getctladdr __P((ADDRESS *)); 276extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 277extern bool invalidaddr __P((char *, char *)); 278extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, ENVELOPE *)); 279extern char **prescan __P((char *, int, char[], int, char **, u_char *)); 280extern void printaddr __P((ADDRESS *, bool)); 281extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 282extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 283extern int rewrite __P((char **, int, int, ENVELOPE *)); 284extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 285extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 286extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *)); 287extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 288 289 /* 290** Mailer definition structure. 291** Every mailer known to the system is declared in this 292** structure. It defines the pathname of the mailer, some 293** flags associated with it, and the argument vector to 294** pass to it. The flags are defined in conf.c 295** 296** The argument vector is expanded before actual use. All 297** words except the first are passed through the macro 298** processor. 299*/ 300 301struct mailer 302{ 303 char *m_name; /* symbolic name of this mailer */ 304 char *m_mailer; /* pathname of the mailer to use */ 305 char *m_mtatype; /* type of this MTA */ 306 char *m_addrtype; /* type for addresses */ 307 char *m_diagtype; /* type for diagnostics */ 308 BITMAP256 m_flags; /* status flags, see below */ 309 short m_mno; /* mailer number internally */ 310 short m_nice; /* niceness to run at (mostly for prog) */ 311 char **m_argv; /* template argument vector */ 312 short m_sh_rwset; /* rewrite set: sender header addresses */ 313 short m_se_rwset; /* rewrite set: sender envelope addresses */ 314 short m_rh_rwset; /* rewrite set: recipient header addresses */ 315 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 316 char *m_eol; /* end of line string */ 317 long m_maxsize; /* size limit on message to this mailer */ 318 int m_linelimit; /* max # characters per line */ 319 int m_maxdeliveries; /* max deliveries per mailer connection */ 320 char *m_execdir; /* directory to chdir to before execv */ 321 char *m_rootdir; /* directory to chroot to before execv */ 322 uid_t m_uid; /* UID to run as */ 323 gid_t m_gid; /* GID to run as */ 324 char *m_defcharset; /* default character set */ 325 time_t m_wait; /* timeout to wait for end */ 326#if _FFR_DYNAMIC_TOBUF 327 int m_maxrcpt; /* max recipients per envelope client-side */ 328#endif /* _FFR_DYNAMIC_TOBUF */ 329}; 330 331/* bits for m_flags */ 332#define M_ESMTP 'a' /* run Extended SMTP protocol */ 333#define M_ALIASABLE 'A' /* user can be LHS of an alias */ 334#define M_BLANKEND 'b' /* ensure blank line at end of message */ 335#define M_NOCOMMENT 'c' /* don't include comment part of address */ 336#define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 337#define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 338 /* 'D' CF: include Date: */ 339#define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 340#define M_ESCFROM 'E' /* escape From lines to >From */ 341#define M_FOPT 'f' /* mailer takes picky -f flag */ 342 /* 'F' CF: include From: or Resent-From: */ 343#define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 344#define M_HST_UPPER 'h' /* preserve host case distinction */ 345#define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 346#define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 347#define M_INTERNAL 'I' /* SMTP to another sendmail site */ 348#define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 349#define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 350#define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 351#define M_LOCALMAILER 'l' /* delivery is to this host */ 352#define M_LIMITS 'L' /* must enforce SMTP line limits */ 353#define M_MUSER 'm' /* can handle multiple users at once */ 354 /* 'M' CF: include Message-Id: */ 355#define M_NHDR 'n' /* don't insert From line */ 356#define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 357#define M_RUNASRCPT 'o' /* always run mailer as recipient */ 358#define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 359 /* 'P' CF: include Return-Path: */ 360#define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 361#define M_ROPT 'r' /* mailer takes picky -r flag */ 362#define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 363#define M_STRIPQ 's' /* strip quote chars from user/host */ 364#define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 365#define M_USR_UPPER 'u' /* preserve user case distinction */ 366#define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 367#define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 368 /* 'V' UIUC: !-relativize all addresses */ 369#define M_HASPWENT 'w' /* check for /etc/passwd entry */ 370 /* 'x' CF: include Full-Name: */ 371#define M_XDOT 'X' /* use hidden-dot algorithm */ 372#define M_LMTP 'z' /* run Local Mail Transport Protocol */ 373#define M_NOMX '0' /* turn off MX lookups */ 374#define M_NONULLS '1' /* don't send null bytes */ 375#define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 376#define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 377#define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 378#define M_7BITS '7' /* use 7-bit path */ 379#define M_8BITS '8' /* force "just send 8" behaviour */ 380#define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 381#define M_CHECKINCLUDE ':' /* check for :include: files */ 382#define M_CHECKPROG '|' /* check for |program addresses */ 383#define M_CHECKFILE '/' /* check for /file addresses */ 384#define M_CHECKUDB '@' /* user can be user database key */ 385#define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 386#define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */ 387#define M_PLUS '+' /* Reserved: Used in mc for adding new flags */ 388#define M_MINUS '-' /* Reserved: Used in mc for removing flags */ 389 390/* functions */ 391extern void initerrmailers __P((void)); 392extern void makemailer __P((char *)); 393 394 /* 395** Information about currently open connections to mailers, or to 396** hosts that we have looked up recently. 397*/ 398 399#define MCI struct mailer_con_info 400 401MCI 402{ 403 u_long mci_flags; /* flag bits, see below */ 404 short mci_errno; /* error number on last connection */ 405 short mci_herrno; /* h_errno from last DNS lookup */ 406 short mci_exitstat; /* exit status from last connection */ 407 short mci_state; /* SMTP state */ 408 int mci_deliveries; /* delivery attempts for connection */ 409 long mci_maxsize; /* max size this server will accept */ 410#if SFIO 411 Sfio_t *mci_in; /* input side of connection */ 412 Sfio_t *mci_out; /* output side of connection */ 413#else /* SFIO */ 414 FILE *mci_in; /* input side of connection */ 415 FILE *mci_out; /* output side of connection */ 416#endif /* SFIO */ 417 pid_t mci_pid; /* process id of subordinate proc */ 418 char *mci_phase; /* SMTP phase string */ 419 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 420 char *mci_host; /* host name */ 421 char *mci_status; /* DSN status to be copied to addrs */ 422 char *mci_rstatus; /* SMTP status to be copied to addrs */ 423 time_t mci_lastuse; /* last usage time */ 424 FILE *mci_statfile; /* long term status file */ 425 char *mci_heloname; /* name to use as HELO arg */ 426#if SASL 427 bool mci_sasl_auth; /* authenticated? */ 428 int mci_sasl_string_len; 429 char *mci_sasl_string; /* sasl reply string */ 430 char *mci_saslcap; /* SASL list of mechanisms */ 431 sasl_conn_t *mci_conn; /* SASL connection */ 432#endif /* SASL */ 433#if STARTTLS 434 SSL *mci_ssl; /* SSL connection */ 435#endif /* STARTTLS */ 436}; 437 438 439/* flag bits */ 440#define MCIF_VALID 0x00000001 /* this entry is valid */ 441#define MCIF_TEMP 0x00000002 /* don't cache this connection */ 442#define MCIF_CACHED 0x00000004 /* currently in open cache */ 443#define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */ 444#define MCIF_EXPN 0x00000010 /* EXPN command supported */ 445#define MCIF_SIZE 0x00000020 /* SIZE option supported */ 446#define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */ 447#define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */ 448#define MCIF_MULTSTAT 0x00000100 /* MAIL11V3: handles MULT status */ 449#define MCIF_INHEADER 0x00000200 /* currently outputing header */ 450#define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */ 451#define MCIF_DSN 0x00000800 /* DSN extension supported */ 452#define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */ 453#define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */ 454#define MCIF_INMIME 0x00004000 /* currently reading MIME header */ 455#define MCIF_AUTH 0x00008000 /* AUTH= supported */ 456#define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */ 457#define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */ 458#if STARTTLS 459#define MCIF_TLS 0x00100000 /* STARTTLS supported */ 460#define MCIF_TLSACT 0x00200000 /* STARTTLS active */ 461#define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS) 462#else /* STARTTLS */ 463#define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT) 464#endif /* STARTTLS */ 465#define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */ 466 467 468/* states */ 469#define MCIS_CLOSED 0 /* no traffic on this connection */ 470#define MCIS_OPENING 1 /* sending initial protocol */ 471#define MCIS_OPEN 2 /* open, initial protocol sent */ 472#define MCIS_ACTIVE 3 /* message being sent */ 473#define MCIS_QUITING 4 /* running quit protocol */ 474#define MCIS_SSD 5 /* service shutting down */ 475#define MCIS_ERROR 6 /* I/O error on connection */ 476 477/* functions */ 478extern void mci_cache __P((MCI *)); 479extern void mci_dump __P((MCI *, bool)); 480extern void mci_dump_all __P((bool)); 481extern void mci_flush __P((bool, MCI *)); 482extern MCI *mci_get __P((char *, MAILER *)); 483extern int mci_lock_host __P((MCI *)); 484extern bool mci_match __P((char *, MAILER *)); 485extern int mci_print_persistent __P((char *, char *)); 486extern int mci_purge_persistent __P((char *, char *)); 487extern MCI **mci_scan __P((MCI *)); 488extern void mci_setstat __P((MCI *, int, char *, char *)); 489extern void mci_store_persistent __P((MCI *)); 490extern int mci_traverse_persistent __P((int (*)(), char *)); 491extern void mci_unlock_host __P((MCI *)); 492 493 /* 494** Header structure. 495** This structure is used internally to store header items. 496*/ 497 498struct header 499{ 500 char *h_field; /* the name of the field */ 501 char *h_value; /* the value of that field */ 502 struct header *h_link; /* the next header */ 503 u_char h_macro; /* include header if macro defined */ 504 u_long h_flags; /* status bits, see below */ 505 BITMAP256 h_mflags; /* m_flags bits needed */ 506}; 507 508typedef struct header HDR; 509 510/* 511** Header information structure. 512** Defined in conf.c, this struct declares the header fields 513** that have some magic meaning. 514*/ 515 516struct hdrinfo 517{ 518 char *hi_field; /* the name of the field */ 519 u_long hi_flags; /* status bits, see below */ 520 char *hi_ruleset; /* validity check ruleset */ 521}; 522 523extern struct hdrinfo HdrInfo[]; 524 525/* bits for h_flags and hi_flags */ 526#define H_EOH 0x00000001 /* field terminates header */ 527#define H_RCPT 0x00000002 /* contains recipient addresses */ 528#define H_DEFAULT 0x00000004 /* if another value is found, drop this */ 529#define H_RESENT 0x00000008 /* this address is a "Resent-..." address */ 530#define H_CHECK 0x00000010 /* check h_mflags against m_flags */ 531#define H_ACHECK 0x00000020 /* ditto, but always (not just default) */ 532#define H_FORCE 0x00000040 /* force this field, even if default */ 533#define H_TRACE 0x00000080 /* this field contains trace information */ 534#define H_FROM 0x00000100 /* this is a from-type field */ 535#define H_VALID 0x00000200 /* this field has a validated value */ 536#define H_RECEIPTTO 0x00000400 /* field has return receipt info */ 537#define H_ERRORSTO 0x00000800 /* field has error address info */ 538#define H_CTE 0x00001000 /* field is a content-transfer-encoding */ 539#define H_CTYPE 0x00002000 /* this is a content-type field */ 540#define H_BCC 0x00004000 /* Bcc: header: strip value or delete */ 541#define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */ 542#define H_STRIPCOMM 0x00010000 /* header check: strip comments */ 543#define H_BINDLATE 0x00020000 /* only expand macros at deliver */ 544#define H_USER 0x00040000 /* header came from the user/SMTP */ 545 546/* bits for chompheader() */ 547#define CHHDR_DEF 0x0001 /* default header */ 548#define CHHDR_CHECK 0x0002 /* call ruleset for header */ 549#define CHHDR_USER 0x0004 /* header from user */ 550#define CHHDR_QUEUE 0x0008 /* header from qf file */ 551 552/* functions */ 553extern void addheader __P((char *, char *, int, HDR **)); 554extern u_long chompheader __P((char *, int, HDR **, ENVELOPE *)); 555extern void commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *)); 556extern HDR *copyheader __P((HDR *)); 557extern void eatheader __P((ENVELOPE *, bool)); 558extern char *hvalue __P((char *, HDR *)); 559extern bool isheader __P((char *)); 560extern void putfromline __P((MCI *, ENVELOPE *)); 561extern void setupheaders __P((void)); 562 563 /* 564** Performance monitoring 565*/ 566 567#define TIMERS struct sm_timers 568 569TIMERS 570{ 571 TIMER ti_overall; /* the whole process */ 572}; 573 574 575#define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); } 576#define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); } 577 578 /* 579** Envelope structure. 580** This structure defines the message itself. There is usually 581** only one of these -- for the message that we originally read 582** and which is our primary interest -- but other envelopes can 583** be generated during processing. For example, error messages 584** will have their own envelope. 585*/ 586 587struct envelope 588{ 589 HDR *e_header; /* head of header list */ 590 long e_msgpriority; /* adjusted priority of this message */ 591 time_t e_ctime; /* time message appeared in the queue */ 592 char *e_to; /* the target person */ 593 ADDRESS e_from; /* the person it is from */ 594 char *e_sender; /* e_from.q_paddr w comments stripped */ 595 char **e_fromdomain; /* the domain part of the sender */ 596 ADDRESS *e_sendqueue; /* list of message recipients */ 597 ADDRESS *e_errorqueue; /* the queue for error responses */ 598 599 /* 600 ** Overflow detection is based on < 0, so don't change this 601 ** to unsigned. We don't use unsigned and == ULONG_MAX because 602 ** some libc's don't have strtoul(), see mail_esmtp_args(). 603 */ 604 long e_msgsize; /* size of the message in bytes */ 605 long e_flags; /* flags, see below */ 606 int e_nrcpts; /* number of recipients */ 607 short e_class; /* msg class (priority, junk, etc.) */ 608 short e_hopcount; /* number of times processed */ 609 short e_nsent; /* number of sends since checkpoint */ 610 short e_sendmode; /* message send mode */ 611 short e_errormode; /* error return mode */ 612 short e_timeoutclass; /* message timeout class */ 613 void (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int)); 614 /* function to put header of message */ 615 void (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 616 /* function to put body of message */ 617 ENVELOPE *e_parent; /* the message this one encloses */ 618 ENVELOPE *e_sibling; /* the next envelope of interest */ 619 char *e_bodytype; /* type of message body */ 620 FILE *e_dfp; /* data file */ 621 char *e_id; /* code for this entry in queue */ 622 int e_queuedir; /* index into queue directories */ 623 FILE *e_xfp; /* transcript file */ 624 FILE *e_lockfp; /* the lock file for this message */ 625 char *e_message; /* error message */ 626 char *e_statmsg; /* stat msg (changes per delivery) */ 627 char *e_msgboundary; /* MIME-style message part boundary */ 628 char *e_origrcpt; /* original recipient (one only) */ 629 char *e_envid; /* envelope id from MAIL FROM: line */ 630 char *e_status; /* DSN status for this message */ 631 time_t e_dtime; /* time of last delivery attempt */ 632 int e_ntries; /* number of delivery attempts */ 633 dev_t e_dfdev; /* df file's device, for crash recov */ 634 ino_t e_dfino; /* df file's ino, for crash recovery */ 635 char *e_macro[MAXMACROID + 1]; /* macro definitions */ 636 char *e_if_macros[2]; /* HACK: incoming interface info */ 637 char *e_auth_param; 638 TIMERS e_timers; /* per job timers */ 639#if _FFR_QUEUEDELAY 640 int e_queuealg; /* algorithm for queue delay */ 641 time_t e_queuedelay; /* current delay */ 642#endif /* _FFR_QUEUEDELAY */ 643}; 644 645/* values for e_flags */ 646#define EF_OLDSTYLE 0x0000001L /* use spaces (not commas) in hdrs */ 647#define EF_INQUEUE 0x0000002L /* this message is fully queued */ 648#define EF_NO_BODY_RETN 0x0000004L /* omit message body on error */ 649#define EF_CLRQUEUE 0x0000008L /* disk copy is no longer needed */ 650#define EF_SENDRECEIPT 0x0000010L /* send a return receipt */ 651#define EF_FATALERRS 0x0000020L /* fatal errors occurred */ 652#define EF_DELETE_BCC 0x0000040L /* delete Bcc: headers entirely */ 653#define EF_RESPONSE 0x0000080L /* this is an error or return receipt */ 654#define EF_RESENT 0x0000100L /* this message is being forwarded */ 655#define EF_VRFYONLY 0x0000200L /* verify only (don't expand aliases) */ 656#define EF_WARNING 0x0000400L /* warning message has been sent */ 657#define EF_QUEUERUN 0x0000800L /* this envelope is from queue */ 658#define EF_GLOBALERRS 0x0001000L /* treat errors as global */ 659#define EF_PM_NOTIFY 0x0002000L /* send return mail to postmaster */ 660#define EF_METOO 0x0004000L /* send to me too */ 661#define EF_LOGSENDER 0x0008000L /* need to log the sender */ 662#define EF_NORECEIPT 0x0010000L /* suppress all return-receipts */ 663#define EF_HAS8BIT 0x0020000L /* at least one 8-bit char in body */ 664#define EF_NL_NOT_EOL 0x0040000L /* don't accept raw NL as EOLine */ 665#define EF_CRLF_NOT_EOL 0x0080000L /* don't accept CR-LF as EOLine */ 666#define EF_RET_PARAM 0x0100000L /* RCPT command had RET argument */ 667#define EF_HAS_DF 0x0200000L /* set when df file is instantiated */ 668#define EF_IS_MIME 0x0400000L /* really is a MIME message */ 669#define EF_DONT_MIME 0x0800000L /* never MIME this message */ 670#define EF_DISCARD 0x1000000L /* discard the message */ 671#define EF_TOOBIG 0x2000000L /* message is too big */ 672 673/* values for e_if_macros */ 674#define EIF_ADDR 0 /* ${if_addr} */ 675 676/* functions */ 677extern void clearenvelope __P((ENVELOPE *, bool)); 678extern void dropenvelope __P((ENVELOPE *, bool)); 679extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *)); 680extern void printenvflags __P((ENVELOPE *)); 681extern void putbody __P((MCI *, ENVELOPE *, char *)); 682extern void putheader __P((MCI *, HDR *, ENVELOPE *, int)); 683 684 /* 685** Message priority classes. 686** 687** The message class is read directly from the Priority: header 688** field in the message. 689** 690** CurEnv->e_msgpriority is the number of bytes in the message plus 691** the creation time (so that jobs ``tend'' to be ordered correctly), 692** adjusted by the message class, the number of recipients, and the 693** amount of time the message has been sitting around. This number 694** is used to order the queue. Higher values mean LOWER priority. 695** 696** Each priority class point is worth WkClassFact priority points; 697** each recipient is worth WkRecipFact priority points. Each time 698** we reprocess a message the priority is adjusted by WkTimeFact. 699** WkTimeFact should normally decrease the priority so that jobs 700** that have historically failed will be run later; thanks go to 701** Jay Lepreau at Utah for pointing out the error in my thinking. 702** 703** The "class" is this number, unadjusted by the age or size of 704** this message. Classes with negative representations will have 705** error messages thrown away if they are not local. 706*/ 707 708struct priority 709{ 710 char *pri_name; /* external name of priority */ 711 int pri_val; /* internal value for same */ 712}; 713 714 /* 715** Rewrite rules. 716*/ 717 718struct rewrite 719{ 720 char **r_lhs; /* pattern match */ 721 char **r_rhs; /* substitution value */ 722 struct rewrite *r_next;/* next in chain */ 723 int r_line; /* rule line in sendmail.cf */ 724}; 725 726/* 727** Special characters in rewriting rules. 728** These are used internally only. 729** The COND* rules are actually used in macros rather than in 730** rewriting rules, but are given here because they 731** cannot conflict. 732*/ 733 734/* left hand side items */ 735#define MATCHZANY ((u_char)0220) /* match zero or more tokens */ 736#define MATCHANY ((u_char)0221) /* match one or more tokens */ 737#define MATCHONE ((u_char)0222) /* match exactly one token */ 738#define MATCHCLASS ((u_char)0223) /* match one token in a class */ 739#define MATCHNCLASS ((u_char)0224) /* match anything not in class */ 740#define MATCHREPL ((u_char)0225) /* replacement on RHS for above */ 741 742/* right hand side items */ 743#define CANONNET ((u_char)0226) /* canonical net, next token */ 744#define CANONHOST ((u_char)0227) /* canonical host, next token */ 745#define CANONUSER ((u_char)0230) /* canonical user, next N tokens */ 746#define CALLSUBR ((u_char)0231) /* call another rewriting set */ 747 748/* conditionals in macros */ 749#define CONDIF ((u_char)0232) /* conditional if-then */ 750#define CONDELSE ((u_char)0233) /* conditional else */ 751#define CONDFI ((u_char)0234) /* conditional fi */ 752 753/* bracket characters for host name lookup */ 754#define HOSTBEGIN ((u_char)0235) /* hostname lookup begin */ 755#define HOSTEND ((u_char)0236) /* hostname lookup end */ 756 757/* bracket characters for generalized lookup */ 758#define LOOKUPBEGIN ((u_char)0205) /* generalized lookup begin */ 759#define LOOKUPEND ((u_char)0206) /* generalized lookup end */ 760 761/* macro substitution character */ 762#define MACROEXPAND ((u_char)0201) /* macro expansion */ 763#define MACRODEXPAND ((u_char)0202) /* deferred macro expansion */ 764 765/* to make the code clearer */ 766#define MATCHZERO CANONHOST 767 768#define MAXMATCH 9 /* max params per rewrite */ 769 770/* external <==> internal mapping table */ 771struct metamac 772{ 773 char metaname; /* external code (after $) */ 774 u_char metaval; /* internal code (as above) */ 775}; 776 777/* values for macros with external names only */ 778#define MID_OPMODE 0202 /* operation mode */ 779 780/* functions */ 781extern void define __P((int, char *, ENVELOPE *)); 782extern void expand __P((char *, char *, size_t, ENVELOPE *)); 783extern int macid __P((char *, char **)); 784extern char *macname __P((int)); 785extern char *macvalue __P((int, ENVELOPE *)); 786extern int rscheck __P((char *, char *, char *, ENVELOPE *, bool, bool, int, char *)); 787extern void setclass __P((int, char *)); 788extern int strtorwset __P((char *, char **, int)); 789extern void translate_dollars __P((char *)); 790extern bool wordinclass __P((char *, int)); 791 792 /* 793** Name canonification short circuit. 794** 795** If the name server for a host is down, the process of trying to 796** canonify the name can hang. This is similar to (but alas, not 797** identical to) looking up the name for delivery. This stab type 798** caches the result of the name server lookup so we don't hang 799** multiple times. 800*/ 801 802#define NAMECANON struct _namecanon 803 804NAMECANON 805{ 806 short nc_errno; /* cached errno */ 807 short nc_herrno; /* cached h_errno */ 808 short nc_stat; /* cached exit status code */ 809 short nc_flags; /* flag bits */ 810 char *nc_cname; /* the canonical name */ 811}; 812 813/* values for nc_flags */ 814#define NCF_VALID 0x0001 /* entry valid */ 815 816/* functions */ 817extern bool getcanonname __P((char *, int, bool)); 818extern int getmxrr __P((char *, char **, u_short *, bool, int *)); 819 820 /* 821** Mapping functions 822** 823** These allow arbitrary mappings in the config file. The idea 824** (albeit not the implementation) comes from IDA sendmail. 825*/ 826 827#define MAPCLASS struct _mapclass 828#define MAP struct _map 829#define MAXMAPACTIONS 5 /* size of map_actions array */ 830 831 832/* 833** An actual map. 834*/ 835 836MAP 837{ 838 MAPCLASS *map_class; /* the class of this map */ 839 char *map_mname; /* name of this map */ 840 long map_mflags; /* flags, see below */ 841 char *map_file; /* the (nominal) filename */ 842 ARBPTR_T map_db1; /* the open database ptr */ 843 ARBPTR_T map_db2; /* an "extra" database pointer */ 844 char *map_keycolnm; /* key column name */ 845 char *map_valcolnm; /* value column name */ 846 u_char map_keycolno; /* key column number */ 847 u_char map_valcolno; /* value column number */ 848 char map_coldelim; /* column delimiter */ 849 char map_spacesub; /* spacesub */ 850 char *map_app; /* to append to successful matches */ 851 char *map_tapp; /* to append to "tempfail" matches */ 852 char *map_domain; /* the (nominal) NIS domain */ 853 char *map_rebuild; /* program to run to do auto-rebuild */ 854 time_t map_mtime; /* last database modification time */ 855 pid_t map_pid; /* PID of process which opened map */ 856 int map_lockfd; /* auxiliary lock file descriptor */ 857 short map_specificity; /* specificity of aliases */ 858 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 859 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 860}; 861 862 863/* bit values for map_mflags */ 864#define MF_VALID 0x00000001 /* this entry is valid */ 865#define MF_INCLNULL 0x00000002 /* include null byte in key */ 866#define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 867#define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 868#define MF_MATCHONLY 0x00000010 /* don't use the map value */ 869#define MF_OPEN 0x00000020 /* this entry is open */ 870#define MF_WRITABLE 0x00000040 /* open for writing */ 871#define MF_ALIAS 0x00000080 /* this is an alias file */ 872#define MF_TRY0NULL 0x00000100 /* try with no null byte */ 873#define MF_TRY1NULL 0x00000200 /* try with the null byte */ 874#define MF_LOCKED 0x00000400 /* this map is currently locked */ 875#define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 876#define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 877#define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 878#define MF_UNSAFEDB 0x00004000 /* this map is world writable */ 879#define MF_APPEND 0x00008000 /* append new entry on rebuild */ 880#define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 881#define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 882#define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 883#define MF_DEFER 0x00080000 /* don't lookup map in defer mode */ 884#define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */ 885#define MF_NOREWRITE 0x00200000 /* don't rewrite result, return as-is */ 886#define MF_CLOSING 0x00400000 /* map is being closed */ 887 888#define DYNOPENMAP(map) if (!bitset(MF_OPEN, (map)->map_mflags)) \ 889 { \ 890 if (!openmap(map)) \ 891 return NULL; \ 892 } 893 894 895/* indices for map_actions */ 896#define MA_NOTFOUND 0 /* member map returned "not found" */ 897#define MA_UNAVAIL 1 /* member map is not available */ 898#define MA_TRYAGAIN 2 /* member map returns temp failure */ 899 900/* 901** The class of a map -- essentially the functions to call 902*/ 903 904MAPCLASS 905{ 906 char *map_cname; /* name of this map class */ 907 char *map_ext; /* extension for database file */ 908 short map_cflags; /* flag bits, see below */ 909 bool (*map_parse)__P((MAP *, char *)); 910 /* argument parsing function */ 911 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 912 /* lookup function */ 913 void (*map_store)__P((MAP *, char *, char *)); 914 /* store function */ 915 bool (*map_open)__P((MAP *, int)); 916 /* open function */ 917 void (*map_close)__P((MAP *)); 918 /* close function */ 919}; 920 921/* bit values for map_cflags */ 922#define MCF_ALIASOK 0x0001 /* can be used for aliases */ 923#define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 924#define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 925#define MCF_OPTFILE 0x0008 /* file name is optional */ 926 927/* functions */ 928extern void closemaps __P((void)); 929extern bool impl_map_open __P((MAP *, int)); 930extern void initmaps __P((void)); 931extern MAP *makemapentry __P((char *)); 932extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 933extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 934#if NETINFO 935extern char *ni_propval __P((char *, char *, char *, char *, int)); 936#endif /* NETINFO */ 937extern bool openmap __P((MAP *)); 938#if USERDB 939extern void _udbx_close __P((void)); 940extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 941extern char *udbsender __P((char *)); 942#endif /* USERDB */ 943 /* 944** LDAP related items 945*/ 946#ifdef LDAPMAP 947struct ldapmap_struct 948{ 949 /* needed for ldap_open or ldap_init */ 950 char *ldap_host; 951 int ldap_port; 952 953 /* options set in ld struct before ldap_bind_s */ 954 int ldap_deref; 955 time_t ldap_timelimit; 956 int ldap_sizelimit; 957 int ldap_options; 958 959 /* args for ldap_bind_s */ 960 LDAP *ldap_ld; 961 char *ldap_binddn; 962 char *ldap_secret; 963 int ldap_method; 964 965 /* args for ldap_search */ 966 char *ldap_base; 967 int ldap_scope; 968 char *ldap_filter; 969 char *ldap_attr[LDAPMAP_MAX_ATTR + 1]; 970 bool ldap_attrsonly; 971 972 /* args for ldap_result */ 973 struct timeval ldap_timeout; 974 LDAPMessage *ldap_res; 975 976 /* Linked list of maps sharing the same LDAP binding */ 977 MAP *ldap_next; 978}; 979 980typedef struct ldapmap_struct LDAPMAP_STRUCT; 981 982/* struct defining LDAP Auth Methods */ 983struct lamvalues 984{ 985 char *lam_name; /* name of LDAP auth method */ 986 int lam_code; /* numeric code */ 987}; 988 989/* struct defining LDAP Alias Dereferencing */ 990struct ladvalues 991{ 992 char *lad_name; /* name of LDAP alias dereferencing method */ 993 int lad_code; /* numeric code */ 994}; 995 996/* struct defining LDAP Search Scope */ 997struct lssvalues 998{ 999 char *lss_name; /* name of LDAP search scope */ 1000 int lss_code; /* numeric code */ 1001}; 1002 1003/* functions */ 1004extern bool ldapmap_parseargs __P((MAP *, char *)); 1005extern void ldapmap_set_defaults __P((char *)); 1006#endif /* LDAPMAP */ 1007 1008 /* 1009** PH related items 1010*/ 1011 1012#ifdef PH_MAP 1013struct ph_map_struct 1014{ 1015 char *ph_servers; /* list of ph servers */ 1016 char *ph_field_list; /* list of fields to search for match */ 1017 FILE *ph_to_server; 1018 FILE *ph_from_server; 1019 int ph_sockfd; 1020 time_t ph_timeout; 1021}; 1022typedef struct ph_map_struct PH_MAP_STRUCT; 1023 1024# define DEFAULT_PH_MAP_FIELDS "alias callsign name spacedname" 1025#endif /* PH_MAP */ 1026 /* 1027** Process List (proclist) 1028*/ 1029 1030struct procs 1031{ 1032 pid_t proc_pid; 1033 char *proc_task; 1034 int proc_type; 1035}; 1036 1037#define NO_PID ((pid_t) 0) 1038#ifndef PROC_LIST_SEG 1039# define PROC_LIST_SEG 32 /* number of pids to alloc at a time */ 1040#endif /* ! PROC_LIST_SEG */ 1041 1042/* process types */ 1043#define PROC_NONE 0 1044#define PROC_DAEMON 1 1045#define PROC_DAEMON_CHILD 2 1046#define PROC_QUEUE 3 1047#define PROC_QUEUE_CHILD 3 1048#define PROC_CONTROL 4 1049#define PROC_CONTROL_CHILD 5 1050 1051/* functions */ 1052extern void proc_list_add __P((pid_t, char *, int)); 1053extern void proc_list_clear __P((void)); 1054extern void proc_list_display __P((FILE *)); 1055extern int proc_list_drop __P((pid_t)); 1056extern void proc_list_probe __P((void)); 1057extern void proc_list_set __P((pid_t, char *)); 1058 1059 /* 1060** Symbol table definitions 1061*/ 1062 1063struct symtab 1064{ 1065 char *s_name; /* name to be entered */ 1066 short s_type; /* general type (see below) */ 1067 short s_len; /* length of this entry */ 1068 struct symtab *s_next; /* pointer to next in chain */ 1069 union 1070 { 1071 BITMAP256 sv_class; /* bit-map of word classes */ 1072 ADDRESS *sv_addr; /* pointer to address header */ 1073 MAILER *sv_mailer; /* pointer to mailer */ 1074 char *sv_alias; /* alias */ 1075 MAPCLASS sv_mapclass; /* mapping function class */ 1076 MAP sv_map; /* mapping function */ 1077 char *sv_hostsig; /* host signature */ 1078 MCI sv_mci; /* mailer connection info */ 1079 NAMECANON sv_namecanon; /* canonical name cache */ 1080 int sv_macro; /* macro name => id mapping */ 1081 int sv_ruleset; /* ruleset index */ 1082 struct hdrinfo sv_header; /* header metainfo */ 1083 char *sv_service[MAXMAPSTACK]; /* service switch */ 1084#ifdef LDAPMAP 1085 MAP *sv_lmap; /* Maps for LDAP connection */ 1086#endif /* LDAPMAP */ 1087#if _FFR_MILTER 1088 struct milter *sv_milter; /* milter filter name */ 1089#endif /* _FFR_MILTER */ 1090 } s_value; 1091}; 1092 1093typedef struct symtab STAB; 1094 1095/* symbol types */ 1096#define ST_UNDEF 0 /* undefined type */ 1097#define ST_CLASS 1 /* class map */ 1098#define ST_ADDRESS 2 /* an address in parsed format */ 1099#define ST_MAILER 3 /* a mailer header */ 1100#define ST_ALIAS 4 /* an alias */ 1101#define ST_MAPCLASS 5 /* mapping function class */ 1102#define ST_MAP 6 /* mapping function */ 1103#define ST_HOSTSIG 7 /* host signature */ 1104#define ST_NAMECANON 8 /* cached canonical name */ 1105#define ST_MACRO 9 /* macro name to id mapping */ 1106#define ST_RULESET 10 /* ruleset index */ 1107#define ST_SERVICE 11 /* service switch entry */ 1108#define ST_HEADER 12 /* special header flags */ 1109#ifdef LDAPMAP 1110# define ST_LMAP 13 /* List head of maps for LDAP connection */ 1111#endif /* LDAPMAP */ 1112#if _FFR_MILTER 1113# define ST_MILTER 14 /* milter filter */ 1114#endif /* _FFR_MILTER */ 1115#define ST_MCI 16 /* mailer connection info (offset) */ 1116 1117#define s_class s_value.sv_class 1118#define s_address s_value.sv_addr 1119#define s_mailer s_value.sv_mailer 1120#define s_alias s_value.sv_alias 1121#define s_mci s_value.sv_mci 1122#define s_mapclass s_value.sv_mapclass 1123#define s_hostsig s_value.sv_hostsig 1124#define s_map s_value.sv_map 1125#define s_namecanon s_value.sv_namecanon 1126#define s_macro s_value.sv_macro 1127#define s_ruleset s_value.sv_ruleset 1128#define s_service s_value.sv_service 1129#define s_header s_value.sv_header 1130#ifdef LDAPMAP 1131# define s_lmap s_value.sv_lmap 1132#endif /* LDAPMAP */ 1133#if _FFR_MILTER 1134# define s_milter s_value.sv_milter 1135#endif /* _FFR_MILTER */ 1136 1137/* opcodes to stab */ 1138#define ST_FIND 0 /* find entry */ 1139#define ST_ENTER 1 /* enter if not there */ 1140 1141/* functions */ 1142extern STAB *stab __P((char *, int, int)); 1143extern void stabapply __P((void (*)(STAB *, int), int)); 1144 1145 /* 1146** STRUCT EVENT -- event queue. 1147** 1148** Maintained in sorted order. 1149** 1150** We store the pid of the process that set this event to insure 1151** that when we fork we will not take events intended for the parent. 1152*/ 1153 1154struct event 1155{ 1156 time_t ev_time; /* time of the function call */ 1157 void (*ev_func)__P((int)); 1158 /* function to call */ 1159 int ev_arg; /* argument to ev_func */ 1160 pid_t ev_pid; /* pid that set this event */ 1161 struct event *ev_link; /* link to next item */ 1162}; 1163 1164typedef struct event EVENT; 1165 1166/* functions */ 1167extern void clrevent __P((EVENT *)); 1168extern void clear_events __P((void)); 1169extern EVENT *setevent __P((time_t, void(*)(), int)); 1170extern EVENT *sigsafe_setevent __P((time_t, void(*)(), int)); 1171 1172 /* 1173** Operation, send, error, and MIME modes 1174** 1175** The operation mode describes the basic operation of sendmail. 1176** This can be set from the command line, and is "send mail" by 1177** default. 1178** 1179** The send mode tells how to send mail. It can be set in the 1180** configuration file. It's setting determines how quickly the 1181** mail will be delivered versus the load on your system. If the 1182** -v (verbose) flag is given, it will be forced to SM_DELIVER 1183** mode. 1184** 1185** The error mode tells how to return errors. 1186*/ 1187 1188#define MD_DELIVER 'm' /* be a mail sender */ 1189#define MD_SMTP 's' /* run SMTP on standard input */ 1190#define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 1191#define MD_DAEMON 'd' /* run as a daemon */ 1192#define MD_FGDAEMON 'D' /* run daemon in foreground */ 1193#define MD_VERIFY 'v' /* verify: don't collect or deliver */ 1194#define MD_TEST 't' /* test mode: resolve addrs only */ 1195#define MD_INITALIAS 'i' /* initialize alias database */ 1196#define MD_PRINT 'p' /* print the queue */ 1197#define MD_FREEZE 'z' /* freeze the configuration file */ 1198#define MD_HOSTSTAT 'h' /* print persistent host stat info */ 1199#define MD_PURGESTAT 'H' /* purge persistent host stat info */ 1200#define MD_QUEUERUN 'q' /* queue run */ 1201 1202/* values for e_sendmode -- send modes */ 1203#define SM_DELIVER 'i' /* interactive delivery */ 1204#define SM_FORK 'b' /* deliver in background */ 1205#define SM_QUEUE 'q' /* queue, don't deliver */ 1206#define SM_DEFER 'd' /* defer map lookups as well as queue */ 1207#define SM_VERIFY 'v' /* verify only (used internally) */ 1208 1209 1210/* used only as a parameter to sendall */ 1211#define SM_DEFAULT '\0' /* unspecified, use SendMode */ 1212 1213/* functions */ 1214extern void set_delivery_mode __P((int, ENVELOPE *)); 1215 1216/* values for e_errormode -- error handling modes */ 1217#define EM_PRINT 'p' /* print errors */ 1218#define EM_MAIL 'm' /* mail back errors */ 1219#define EM_WRITE 'w' /* write back errors */ 1220#define EM_BERKNET 'e' /* special berknet processing */ 1221#define EM_QUIET 'q' /* don't print messages (stat only) */ 1222 1223 1224/* bit values for MimeMode */ 1225#define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 1226#define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 1227#define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 1228 1229 1230/* how to handle messages without any recipient addresses */ 1231#define NRA_NO_ACTION 0 /* just leave it as is */ 1232#define NRA_ADD_TO 1 /* add To: header */ 1233#define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 1234#define NRA_ADD_BCC 3 /* add empty Bcc: header */ 1235#define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 1236 1237 1238/* flags to putxline */ 1239#define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 1240#define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 1241#define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 1242#define PXLF_HEADER 0x0004 /* map newlines in headers */ 1243 1244/* 1245** Privacy flags 1246** These are bit values for the PrivacyFlags word. 1247*/ 1248 1249#define PRIV_PUBLIC 0 /* what have I got to hide? */ 1250#define PRIV_NEEDMAILHELO 0x0001 /* insist on HELO for MAIL, at least */ 1251#define PRIV_NEEDEXPNHELO 0x0002 /* insist on HELO for EXPN */ 1252#define PRIV_NEEDVRFYHELO 0x0004 /* insist on HELO for VRFY */ 1253#define PRIV_NOEXPN 0x0008 /* disallow EXPN command entirely */ 1254#define PRIV_NOVRFY 0x0010 /* disallow VRFY command entirely */ 1255#define PRIV_AUTHWARNINGS 0x0020 /* flag possible authorization probs */ 1256#define PRIV_NORECEIPTS 0x0040 /* disallow return receipts */ 1257#define PRIV_NOVERB 0x0100 /* disallow VERB command entirely */ 1258#define PRIV_RESTRICTMAILQ 0x1000 /* restrict mailq command */ 1259#define PRIV_RESTRICTQRUN 0x2000 /* restrict queue run */ 1260#define PRIV_NOETRN 0x4000 /* disallow ETRN command entirely */ 1261#define PRIV_NOBODYRETN 0x8000 /* do not return bodies on bounces */ 1262 1263/* don't give no info, anyway, anyhow */ 1264#define PRIV_GOAWAY (0x0fff & ~PRIV_NORECEIPTS) 1265 1266/* struct defining such things */ 1267struct prival 1268{ 1269 char *pv_name; /* name of privacy flag */ 1270 u_short pv_flag; /* numeric level */ 1271}; 1272 1273 1274/* 1275** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 1276*/ 1277 1278#define RF_SENDERADDR 0x001 /* this is a sender address */ 1279#define RF_HEADERADDR 0x002 /* this is a header address */ 1280#define RF_CANONICAL 0x004 /* strip comment information */ 1281#define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 1282#define RF_COPYPARSE 0x010 /* copy parsed user & host */ 1283#define RF_COPYPADDR 0x020 /* copy print address */ 1284#define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 1285#define RF_COPYNONE 0 1286 1287 1288/* 1289** Flags passed to mime8to7 and putheader. 1290*/ 1291 1292#define M87F_OUTER 0 /* outer context */ 1293#define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1294#define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1295#define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */ 1296 1297/* functions */ 1298extern void mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1299extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int)); 1300 1301/* 1302** Flags passed to returntosender. 1303*/ 1304 1305#define RTSF_NO_BODY 0 /* send headers only */ 1306#define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1307#define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1308 1309/* functions */ 1310extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1311 1312/* 1313** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1314** we are forced to declare a supertype here. 1315*/ 1316 1317#if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 1318union bigsockaddr 1319{ 1320 struct sockaddr sa; /* general version */ 1321# if NETUNIX 1322 struct sockaddr_un sunix; /* UNIX family */ 1323# endif /* NETUNIX */ 1324# if NETINET 1325 struct sockaddr_in sin; /* INET family */ 1326# endif /* NETINET */ 1327# if NETINET6 1328 struct sockaddr_in6 sin6; /* INET/IPv6 */ 1329# endif /* NETINET6 */ 1330# if NETISO 1331 struct sockaddr_iso siso; /* ISO family */ 1332# endif /* NETISO */ 1333# if NETNS 1334 struct sockaddr_ns sns; /* XNS family */ 1335# endif /* NETNS */ 1336# if NETX25 1337 struct sockaddr_x25 sx25; /* X.25 family */ 1338# endif /* NETX25 */ 1339}; 1340 1341# define SOCKADDR union bigsockaddr 1342 1343/* functions */ 1344extern char *anynet_ntoa __P((SOCKADDR *)); 1345# if NETINET6 1346extern char *anynet_ntop __P((struct in6_addr *, char *, size_t)); 1347# endif /* NETINET6 */ 1348extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1349# if DAEMON 1350extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1351# endif /* DAEMON */ 1352 1353#endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 1354 1355#if _FFR_MILTER 1356 /* 1357** Mail Filters (milter) 1358*/ 1359 1360#include <libmilter/milter.h> 1361 1362#define SMFTO_WRITE 0 /* Timeout for sending information */ 1363#define SMFTO_READ 1 /* Timeout waiting for a response */ 1364#define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */ 1365#define SMFTO_CONNECT 3 /* Timeout for connect() */ 1366 1367#define SMFTO_NUM_TO 4 /* Total number of timeouts */ 1368 1369struct milter 1370{ 1371 char *mf_name; /* filter name */ 1372 BITMAP256 mf_flags; /* MTA flags */ 1373 u_long mf_fvers; /* filter version */ 1374 u_long mf_fflags; /* filter flags */ 1375 u_long mf_pflags; /* protocol flags */ 1376 char *mf_conn; /* connection info */ 1377 int mf_sock; /* connected socket */ 1378 char mf_state; /* state of filter */ 1379 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */ 1380}; 1381 1382/* MTA flags */ 1383# define SMF_REJECT 'R' /* Reject connection on filter fail */ 1384# define SMF_TEMPFAIL 'T' /* tempfail connection on failure */ 1385 1386/* states */ 1387# define SMFS_CLOSED 'C' /* closed for all further actions */ 1388# define SMFS_OPEN 'O' /* connected to remote milter filter */ 1389# define SMFS_INMSG 'M' /* currently servicing a message */ 1390# define SMFS_DONE 'D' /* done with current message */ 1391# define SMFS_CLOSABLE 'Q' /* done with current connection */ 1392# define SMFS_ERROR 'E' /* error state */ 1393# define SMFS_READY 'R' /* ready for action */ 1394 1395/* 32-bit type used by milter */ 1396typedef SM_INT32 mi_int32; 1397 1398EXTERN struct milter *InputFilters[MAXFILTERS]; 1399EXTERN char *InputFilterList; 1400#endif /* _FFR_MILTER */ 1401 1402/* 1403** Vendor codes 1404** 1405** Vendors can customize sendmail to add special behaviour, 1406** generally for back compatibility. Ideally, this should 1407** be set up in the .cf file using the "V" command. However, 1408** it's quite reasonable for some vendors to want the default 1409** be their old version; this can be set using 1410** -DVENDOR_DEFAULT=VENDOR_xxx 1411** in the Makefile. 1412** 1413** Vendors should apply to sendmail@sendmail.org for 1414** unique vendor codes. 1415*/ 1416 1417#define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1418#define VENDOR_SUN 2 /* Sun-native configuration file */ 1419#define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1420#define VENDOR_IBM 4 /* IBM specific config syntax */ 1421#define VENDOR_SENDMAIL 5 /* Sendmail, Inc. specific config syntax */ 1422 1423/* prototypes for vendor-specific hook routines */ 1424extern void vendor_daemon_setup __P((ENVELOPE *)); 1425extern void vendor_set_uid __P((UID_T)); 1426 1427 1428/* 1429** Terminal escape codes. 1430** 1431** To make debugging output clearer. 1432*/ 1433 1434struct termescape 1435{ 1436 char *te_rv_on; /* turn reverse-video on */ 1437 char *te_rv_off; /* turn reverse-video off */ 1438}; 1439 1440 /* 1441** Additional definitions 1442*/ 1443 1444/* d_flags, see daemon.c */ 1445/* general rule: lower case: required, upper case: No */ 1446#define D_AUTHREQ 'a' /* authentication required */ 1447#define D_BINDIF 'b' /* use if_addr for outgoing connection */ 1448#define D_CANONREQ 'c' /* canonification required (cf) */ 1449#define D_IFNHELO 'h' /* use if name for HELO */ 1450#define D_FQMAIL 'f' /* fq sender address required (cf) */ 1451#if _FFR_TLS_CLT1 1452#define D_CLTNOTLS 'S' /* don't use STARTTLS in client */ 1453#endif /* _FFR_TLS_CLT1 */ 1454#define D_FQRCPT 'r' /* fq recipient address required (cf) */ 1455#define D_UNQUALOK 'u' /* unqualified address is ok (cf) */ 1456#define D_NOCANON 'C' /* no canonification (cf) */ 1457#define D_NOETRN 'E' /* no ETRN (MSA) */ 1458#define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */ 1459 1460/* Flags for submitmode */ 1461#define SUBMIT_UNKNOWN 0x0000 /* unknown agent type */ 1462#define SUBMIT_MTA 0x0001 /* act like a message transfer agent */ 1463#define SUBMIT_MSA 0x0002 /* act like a message submission agent */ 1464 1465#if SASL 1466 /* 1467** SASL 1468*/ 1469 1470/* authenticated? */ 1471# define SASL_NOT_AUTH 0 /* not authenticated */ 1472# define SASL_PROC_AUTH 1 /* in process of authenticating */ 1473# define SASL_IS_AUTH 2 /* authenticated */ 1474 1475/* SASL options */ 1476# define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */ 1477# if _FFR_SASL_OPTS 1478# define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */ 1479# if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \ 1480 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \ 1481 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \ 1482 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \ 1483 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \ 1484 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0 1485ERROR: change SASL_SEC_MASK_ notify sendmail.org! 1486# endif 1487# endif /* _FFR_SASL_OPTS */ 1488 1489# define MAXOUTLEN 1024 /* length of output buffer */ 1490#endif /* SASL */ 1491 1492#if STARTTLS 1493 /* 1494** TLS 1495*/ 1496 1497/* what to do in the TLS initialization */ 1498#define TLS_I_NONE 0x00000000 /* no requirements... */ 1499#define TLS_I_CERT_EX 0x00000001 /* CERT must exist */ 1500#define TLS_I_CERT_UNR 0x00000002 /* CERT must be g/o unreadable */ 1501#define TLS_I_KEY_EX 0x00000004 /* KEY must exist */ 1502#define TLS_I_KEY_UNR 0x00000008 /* KEY must be g/o unreadable */ 1503#define TLS_I_CERTP_EX 0x00000010 /* CA CERT PATH must exist */ 1504#define TLS_I_CERTP_UNR 0x00000020 /* CA CERT PATH must be g/o unreadable */ 1505#define TLS_I_CERTF_EX 0x00000040 /* CA CERT FILE must exist */ 1506#define TLS_I_CERTF_UNR 0x00000080 /* CA CERT FILE must be g/o unreadable */ 1507#define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */ 1508#define TLS_I_USE_KEY 0x00000200 /* private key must usable */ 1509#define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */ 1510#define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */ 1511#define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */ 1512#define TLS_I_CACHE 0x00002000 /* require cache */ 1513#define TLS_I_TRY_DH 0x00004000 /* try DH certificate */ 1514#define TLS_I_REQ_DH 0x00008000 /* require DH certificate */ 1515#define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */ 1516#define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */ 1517#define TLS_I_DH512 0x00040000 /* generate 512bit DH param */ 1518#define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */ 1519#define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */ 1520 1521/* server requirements */ 1522#define TLS_I_SRV (TLS_I_CERT_EX | TLS_I_KEY_EX | TLS_I_KEY_UNR | \ 1523 TLS_I_CERTP_EX | TLS_I_CERTF_EX | TLS_I_RSA_TMP | \ 1524 TLS_I_USE_KEY | TLS_I_USE_CERT | TLS_I_VRFY_PATH | \ 1525 TLS_I_VRFY_LOC | TLS_I_TRY_DH | \ 1526 TLS_I_DH512) 1527 1528/* client requirements */ 1529#define TLS_I_CLT (TLS_I_KEY_UNR) 1530 1531#define TLS_AUTH_OK 0 1532#define TLS_AUTH_NO 1 1533#define TLS_AUTH_FAIL (-1) 1534#endif /* STARTTLS */ 1535 1536 1537 /* 1538** Queue related items 1539*/ 1540 1541/* queue sort order */ 1542#define QSO_BYPRIORITY 0 /* sort by message priority */ 1543#define QSO_BYHOST 1 /* sort by first host name */ 1544#define QSO_BYTIME 2 /* sort by submission time */ 1545#define QSO_BYFILENAME 3 /* sort by file name only */ 1546 1547#if _FFR_QUEUEDELAY 1548#define QD_LINEAR 0 /* linear (old) delay alg */ 1549#define QD_EXP 1 /* exponential delay alg */ 1550#endif /* _FFR_QUEUEDELAY */ 1551 1552#define NOQDIR (-1) /* no queue directory (yet) */ 1553 1554#define NOW ((time_t) (-1)) /* queue return: now */ 1555 1556/* Queue Run Limitations */ 1557struct queue_char 1558{ 1559 char *queue_match; /* string to match */ 1560 struct queue_char *queue_next; 1561}; 1562 1563typedef struct queue_char QUEUE_CHAR; 1564 1565/* functions */ 1566extern void assign_queueid __P((ENVELOPE *)); 1567extern ADDRESS *copyqueue __P((ADDRESS *)); 1568extern void initsys __P((ENVELOPE *)); 1569extern void loseqfile __P((ENVELOPE *, char *)); 1570extern void multiqueue_cache __P((void)); 1571extern char *qid_printname __P((ENVELOPE *)); 1572extern char *qid_printqueue __P((int)); 1573extern char *queuename __P((ENVELOPE *, int)); 1574extern void queueup __P((ENVELOPE *, bool)); 1575extern bool runqueue __P((bool, bool)); 1576extern void setnewqueue __P((ENVELOPE *)); 1577extern bool shouldqueue __P((long, time_t)); 1578extern void sync_queue_time __P((void)); 1579 1580/* 1581** Timeouts 1582** 1583** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 1584*/ 1585 1586EXTERN struct 1587{ 1588 /* RFC 1123-specified timeouts [minimum value] */ 1589 time_t to_initial; /* initial greeting timeout [5m] */ 1590 time_t to_mail; /* MAIL command [5m] */ 1591 time_t to_rcpt; /* RCPT command [5m] */ 1592 time_t to_datainit; /* DATA initiation [2m] */ 1593 time_t to_datablock; /* DATA block [3m] */ 1594 time_t to_datafinal; /* DATA completion [10m] */ 1595 time_t to_nextcommand; /* next command [5m] */ 1596 /* following timeouts are not mentioned in RFC 1123 */ 1597 time_t to_iconnect; /* initial connection timeout (first try) */ 1598 time_t to_connect; /* initial connection timeout (later tries) */ 1599 time_t to_rset; /* RSET command */ 1600 time_t to_helo; /* HELO command */ 1601 time_t to_quit; /* QUIT command */ 1602 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 1603 time_t to_ident; /* IDENT protocol requests */ 1604 time_t to_fileopen; /* opening :include: and .forward files */ 1605 time_t to_control; /* process a control socket command */ 1606 /* following are per message */ 1607 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 1608 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 1609 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */ 1610 int res_retry[MAXRESTOTYPES]; /* resolver retry */ 1611} TimeOuts; 1612 1613/* timeout classes for return and warning timeouts */ 1614#define TOC_NORMAL 0 /* normal delivery */ 1615#define TOC_URGENT 1 /* urgent delivery */ 1616#define TOC_NONURGENT 2 /* non-urgent delivery */ 1617 1618/* resolver timeout specifiers */ 1619#define RES_TO_FIRST 0 /* first attempt */ 1620#define RES_TO_NORMAL 1 /* subsequent attempts */ 1621#define RES_TO_DEFAULT 2 /* default value */ 1622 1623/* functions */ 1624extern void inittimeouts __P((char *, bool)); 1625 1626/* 1627** Trace information 1628*/ 1629 1630/* macros for debugging flags */ 1631#define tTd(flag, level) (tTdvect[flag] >= (u_char)level) 1632#define tTdlevel(flag) (tTdvect[flag]) 1633 1634/* variables */ 1635extern u_char tTdvect[100]; /* trace vector */ 1636 /* 1637** Critical signal sections 1638*/ 1639 1640#define PEND_SIGHUP 0x0001 1641#define PEND_SIGINT 0x0002 1642#define PEND_SIGTERM 0x0004 1643#define PEND_SIGUSR1 0x0008 1644 1645#define ENTER_CRITICAL() InCriticalSection++ 1646 1647#define LEAVE_CRITICAL() \ 1648do \ 1649{ \ 1650 if (InCriticalSection > 0) \ 1651 InCriticalSection--; \ 1652} while (0) 1653 1654#define CHECK_CRITICAL(sig) \ 1655do \ 1656{ \ 1657 if (InCriticalSection > 0 && (sig) != 0) \ 1658 { \ 1659 pend_signal((sig)); \ 1660 return SIGFUNC_RETURN; \ 1661 } \ 1662} while (0) 1663 1664/* reset signal in case System V semantics */ 1665#ifdef SYS5SIGNALS 1666# define FIX_SYSV_SIGNAL(sig, handler) \ 1667{ \ 1668 if ((sig) != 0) \ 1669 (void) setsignal((sig), (handler)); \ 1670} 1671#else /* SYS5SIGNALS */ 1672# define FIX_SYSV_SIGNAL(sig, handler) { /* EMPTY */ } 1673#endif /* SYS5SIGNALS */ 1674 1675/* variables */ 1676EXTERN u_int volatile InCriticalSection; /* >0 if in a critical section */ 1677EXTERN int volatile PendingSignal; /* pending signal to resend */ 1678 1679/* functions */ 1680extern void pend_signal __P((int)); 1681 1682 /* 1683** Miscellaneous information. 1684*/ 1685 1686/* 1687** The "no queue id" queue id for sm_syslog 1688*/ 1689 1690#define NOQID "*~*" 1691 1692 1693/* 1694** Some in-line functions 1695*/ 1696 1697/* set exit status */ 1698#define setstat(s) { \ 1699 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 1700 ExitStat = s; \ 1701 } 1702 1703/* make a copy of a string */ 1704#define newstr(s) strcpy(xalloc(strlen(s) + 1), s) 1705 1706#define STRUCTCOPY(s, d) d = s 1707 /* 1708** Global variables. 1709*/ 1710 1711EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 1712#if !_FFR_REMOVE_AUTOREBUILD 1713EXTERN bool AutoRebuild; /* auto-rebuild the alias database as needed */ 1714#endif /* !_FFR_REMOVE_AUTOREBUILD */ 1715EXTERN bool CheckAliases; /* parse addresses during newaliases */ 1716EXTERN bool ChownAlwaysSafe; /* treat chown(2) as safe */ 1717EXTERN bool ColonOkInAddr; /* single colon legal in address */ 1718EXTERN bool ConfigFileRead; /* configuration file has been read */ 1719EXTERN bool volatile DataProgress; /* have we sent anything since last check */ 1720EXTERN bool DisConnected; /* running with OutChannel redirected to xf */ 1721EXTERN bool volatile DoQueueRun; /* non-interrupt time queue run needed */ 1722EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 1723EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 1724EXTERN bool DontLockReadFiles; /* don't read lock support files */ 1725EXTERN bool DontProbeInterfaces; /* don't probe interfaces for names */ 1726EXTERN bool DontPruneRoutes; /* don't prune source routes */ 1727EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 1728EXTERN bool FromFlag; /* if set, "From" person is explicit */ 1729EXTERN bool GrabTo; /* if set, get recipients from msg */ 1730EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 1731EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 1732EXTERN bool HoldErrs; /* only output errors to transcript */ 1733EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 1734EXTERN bool IgnrDot; /* don't let dot end messages */ 1735EXTERN bool InChild; /* true if running in an SMTP subprocess */ 1736EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 1737EXTERN bool MapOpenErr; /* error opening a non-optional map */ 1738EXTERN bool MatchGecos; /* look for user names in gecos field */ 1739EXTERN bool MeToo; /* send to the sender also */ 1740EXTERN bool NoAlias; /* suppress aliasing */ 1741EXTERN bool NoConnect; /* don't connect to non-local mailers */ 1742EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 1743EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 1744EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 1745EXTERN bool SaveFrom; /* save leading "From" lines */ 1746EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 1747EXTERN bool SevenBitInput; /* force 7-bit data on input */ 1748EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 1749EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 1750EXTERN bool volatile StopRequest; /* stop sending output */ 1751EXTERN bool SuperSafe; /* be extra careful, even if expensive */ 1752EXTERN bool SuprErrs; /* set if we are suppressing errors */ 1753EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 1754#if _FFR_WORKAROUND_BROKEN_NAMESERVERS 1755EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */ 1756#endif /* _FFR_WORKAROUND_BROKEN_NAMESERVERS */ 1757EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 1758EXTERN bool UseHesiod; /* using Hesiod -- interpret Hesiod errors */ 1759EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 1760EXTERN char InetMode; /* default network for daemon mode */ 1761EXTERN char OpMode; /* operation mode, see below */ 1762EXTERN char SpaceSub; /* substitution for <lwsp> */ 1763EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 1764EXTERN int ConfigLevel; /* config file level */ 1765EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 1766EXTERN int volatile CurChildren; /* current number of daemonic children */ 1767EXTERN int CurrentLA; /* current load average */ 1768EXTERN int DefaultNotify; /* default DSN notification flags */ 1769EXTERN int Errors; /* set if errors (local to single pass) */ 1770EXTERN int ExitStat; /* exit status code */ 1771EXTERN int FileMode; /* mode on files */ 1772EXTERN int LineNumber; /* line number in current input */ 1773EXTERN int LogLevel; /* level of logging to perform */ 1774EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 1775EXTERN int MaxChildren; /* maximum number of daemonic children */ 1776EXTERN int MaxForwardEntries; /* maximum number of forward entries */ 1777EXTERN int MaxHeadersLength; /* max length of headers */ 1778EXTERN int MaxHopCount; /* max # of hops until bounce */ 1779EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 1780EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 1781EXTERN int MaxMimeFieldLength; /* maximum MIME field length */ 1782EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */ 1783 1784 1785EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 1786EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 1787EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 1788EXTERN int MimeMode; /* MIME processing mode */ 1789EXTERN int NoRecipientAction; 1790EXTERN int NumPriorities; /* pointer into Priorities */ 1791EXTERN u_short PrivacyFlags; /* privacy flags */ 1792#if _FFR_QUEUE_FILE_MODE 1793EXTERN int QueueFileMode; /* mode on qf/tf/df files */ 1794#endif /* _FFR_QUEUE_FILE_MODE */ 1795EXTERN int QueueLA; /* load average starting forced queueing */ 1796EXTERN int QueueSortOrder; /* queue sorting order algorithm */ 1797EXTERN int RefuseLA; /* load average refusing connections are */ 1798EXTERN int VendorCode; /* vendor-specific operation enhancements */ 1799EXTERN int Verbose; /* set if blow-by-blow desired */ 1800EXTERN gid_t DefGid; /* default gid to run as */ 1801EXTERN gid_t RealGid; /* real gid of caller */ 1802EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 1803EXTERN uid_t DefUid; /* default uid to run as */ 1804EXTERN uid_t RealUid; /* real uid of caller */ 1805EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 1806EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */ 1807EXTERN size_t DataFileBufferSize; /* size of buffer for in-core df */ 1808EXTERN size_t XscriptFileBufferSize; /* size of buffer for in-core xf */ 1809EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 1810EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 1811EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 1812EXTERN time_t MinQueueAge; /* min delivery interval */ 1813EXTERN time_t QueueIntvl; /* intervals between running the queue */ 1814EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 1815EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 1816EXTERN time_t ServiceCacheTime; /* time service switch was cached */ 1817EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 1818EXTERN long MaxMessageSize; /* advertised max size we will accept */ 1819EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 1820EXTERN long QueueFactor; /* slope of queue function */ 1821EXTERN long WkClassFact; /* multiplier for message class -> priority */ 1822EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 1823EXTERN long WkTimeFact; /* priority offset each time this job is run */ 1824#if SASL 1825EXTERN char *AuthMechanisms; /* AUTH mechanisms */ 1826EXTERN char *SASLInfo; /* file with AUTH info */ 1827#endif /* SASL */ 1828EXTERN int SASLOpts; /* options for SASL */ 1829#if STARTTLS 1830EXTERN char *CACERTpath; /* path to CA certificates (dir. with hashes) */ 1831EXTERN char *CACERTfile; /* file with CA certificate */ 1832EXTERN char *SrvCERTfile; /* file with server certificate */ 1833EXTERN char *Srvkeyfile; /* file with server private key */ 1834EXTERN char *CltCERTfile; /* file with client certificate */ 1835EXTERN char *Cltkeyfile; /* file with client private key */ 1836EXTERN char *DHParams; /* file with DH parameters */ 1837EXTERN char *RandFile; /* source of random data */ 1838# if _FFR_TLS_1 1839EXTERN char *DHParams5; /* file with DH parameters (512) */ 1840EXTERN char *CipherList; /* list of ciphers */ 1841# endif /* _FFR_TLS_1 */ 1842#endif /* STARTTLS */ 1843EXTERN char *ConfFile; /* location of configuration file [conf.c] */ 1844EXTERN char *ControlSocketName; /* control socket filename [control.c] */ 1845EXTERN char *CurHostName; /* current host we are dealing with */ 1846EXTERN char *DeadLetterDrop; /* path to dead letter office */ 1847EXTERN char *DefUser; /* default user to run as (from DefUid) */ 1848EXTERN char *DefaultCharSet; /* default character set for MIME */ 1849EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 1850EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 1851EXTERN char *FallBackMX; /* fall back MX host */ 1852EXTERN char *FileName; /* name to print on error messages */ 1853EXTERN char *ForwardPath; /* path to search for .forward files */ 1854EXTERN char *HelpFile; /* location of SMTP help file */ 1855EXTERN char *HostStatDir; /* location of host status information */ 1856EXTERN char *HostsFile; /* path to /etc/hosts file */ 1857EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 1858EXTERN char *MyHostName; /* name of this host for SMTP messages */ 1859EXTERN char *OperatorChars; /* operators (old $o macro) */ 1860EXTERN char *PidFile; /* location of proc id file [conf.c] */ 1861EXTERN char *PostMasterCopy; /* address to get errs cc's */ 1862EXTERN char *ProcTitlePrefix; /* process title prefix */ 1863EXTERN char *QueueDir; /* location of queue directory */ 1864#if _FFR_QUEUEDELAY 1865EXTERN int QueueAlg; /* algorithm for queue delays */ 1866EXTERN time_t QueueInitDelay; /* initial queue delay */ 1867EXTERN time_t QueueMaxDelay; /* maximum queue delay */ 1868#endif /* _FFR_QUEUEDELAY */ 1869EXTERN char *RealHostName; /* name of host we are talking to */ 1870EXTERN char *RealUserName; /* real user name of caller */ 1871EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */ 1872EXTERN char *RunAsUserName; /* user to become for bulk of run */ 1873EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 1874EXTERN char *ServiceSwitchFile; /* backup service switch */ 1875EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */ 1876EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 1877EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 1878EXTERN char SmtpError[MAXLINE]; /* save failure error messages */ 1879EXTERN char *StatFile; /* location of statistics summary */ 1880EXTERN char *TimeZoneSpec; /* override time zone specification */ 1881EXTERN char *UdbSpec; /* user database source spec */ 1882EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 1883EXTERN char **ExternalEnviron; /* input environment */ 1884 /* saved user environment */ 1885EXTERN char **SaveArgv; /* argument vector for re-execing */ 1886EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */ 1887#if SFIO 1888EXTERN Sfio_t *InChannel; /* input connection */ 1889EXTERN Sfio_t *OutChannel; /* output connection */ 1890#else /* SFIO */ 1891EXTERN FILE *InChannel; /* input connection */ 1892EXTERN FILE *OutChannel; /* output connection */ 1893#endif /* SFIO */ 1894EXTERN FILE *TrafficLogFile; /* file in which to log all traffic */ 1895#ifdef HESIOD 1896EXTERN void *HesiodContext; 1897#endif /* HESIOD */ 1898EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 1899EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 1900EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 1901EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 1902EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 1903EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */ 1904EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */ 1905EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */ 1906EXTERN MAILER *Mailer[MAXMAILERS + 1]; 1907EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 1908EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */ 1909EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 1910EXTERN struct priority Priorities[MAXPRIORITIES]; 1911EXTERN struct termescape TermEscape; /* terminal escape codes */ 1912EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */ 1913EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 1914EXTERN jmp_buf TopFrame; /* branch-to-top-of-loop-on-error frame */ 1915EXTERN TIMERS Timers; 1916 1917/* 1918** Declarations of useful functions 1919*/ 1920 1921#if SASL 1922extern char *intersect __P((char *, char *)); 1923extern char *iteminlist __P((char *, char *, char *)); 1924extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **)); 1925# if SASL > 10515 1926extern int safesaslfile __P((void *, char *, int)); 1927# else /* SASL > 10515 */ 1928extern int safesaslfile __P((void *, char *)); 1929# endif /* SASL > 10515 */ 1930extern int sasl_decode64 __P((const char *, unsigned, char *, unsigned *)); 1931extern int sasl_encode64 __P((const char *, unsigned, char *, unsigned, unsigned *)); 1932#endif /* SASL */ 1933 1934#if STARTTLS 1935extern void apps_ssl_info_cb __P((SSL *, int , int)); 1936extern bool init_tls_library __P((void)); 1937extern bool inittls __P((SSL_CTX **, u_long, bool, char *, char *, char *, char *, char *)); 1938extern bool initclttls __P((void)); 1939extern bool initsrvtls __P((void)); 1940extern int tls_get_info __P((SSL *, ENVELOPE *, bool, char *, bool)); 1941extern int endtls __P((SSL *, char *)); 1942extern int endtlsclt __P((MCI *)); 1943extern void tlslogerr __P((void)); 1944extern bool tls_rand_init __P((char *, int)); 1945#endif /* STARTTLS */ 1946 1947/* Transcript file */ 1948extern void closexscript __P((ENVELOPE *)); 1949extern void openxscript __P((ENVELOPE *)); 1950 1951/* error related */ 1952extern void buffer_errors __P((void)); 1953extern void flush_errors __P((bool)); 1954extern void message __P((const char *, ...)); 1955extern void nmessage __P((const char *, ...)); 1956extern void syserr __P((const char *, ...)); 1957extern void usrerrenh __P((char *, const char *, ...)); 1958extern void usrerr __P((const char *, ...)); 1959extern int isenhsc __P((const char *, int)); 1960extern int extenhsc __P((const char *, int, char *)); 1961 1962/* alias file */ 1963extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1964extern bool aliaswait __P((MAP *, char *, bool)); 1965extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1966extern void readaliases __P((MAP *, FILE *, bool, bool)); 1967extern bool rebuildaliases __P((MAP *, bool)); 1968extern void setalias __P((char *)); 1969 1970/* logging */ 1971extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *)); 1972extern void logsender __P((ENVELOPE *, char *)); 1973extern void sm_syslog __P((int, const char *, const char *, ...)); 1974 1975/* SMTP */ 1976extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *)); 1977extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)(), char **)); 1978extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile)); 1979#if SASL 1980extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *)); 1981#endif /* SASL */ 1982extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *)); 1983extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *)); 1984extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *)); 1985extern void smtpmessage __P((char *, MAILER *, MCI *, ...)); 1986extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool)); 1987extern char *smtptodsn __P((int)); 1988extern int smtpprobe __P((MCI *)); 1989extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 1990extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *)); 1991extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 1992 1993#define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \ 1994 isascii(c[1]) && isdigit(c[1]) && \ 1995 isascii(c[2]) && isdigit(c[2])) 1996#define ISSMTPREPLY(c) (ISSMTPCODE(c) && \ 1997 (c[3] == ' ' || c[3] == '-' || c[3] == '\0')) 1998 1999/* delivery */ 2000extern pid_t dowork __P((int, char *, bool, bool, ENVELOPE *)); 2001extern int endmailer __P((MCI *, ENVELOPE *, char **)); 2002extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *)); 2003extern void sendall __P((ENVELOPE *, int)); 2004 2005/* stats */ 2006extern void markstats __P((ENVELOPE *, ADDRESS *, bool)); 2007extern void clearstats __P((void)); 2008extern void poststats __P((char *)); 2009 2010/* control socket */ 2011extern void closecontrolsocket __P((bool)); 2012extern void clrcontrol __P((void)); 2013extern void control_command __P((int, ENVELOPE *)); 2014extern int opencontrolsocket __P((void)); 2015 2016#if _FFR_MILTER 2017/* milter functions */ 2018extern void milter_parse_list __P((char *, struct milter **, int)); 2019extern void milter_setup __P((char *)); 2020extern void milter_set_option __P((char *, char *, bool)); 2021extern bool milter_can_delrcpts __P((void)); 2022extern void milter_init __P((ENVELOPE *, char *)); 2023extern void milter_quit __P((ENVELOPE *)); 2024extern void milter_abort __P((ENVELOPE *)); 2025extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *)); 2026extern char *milter_helo __P((char *, ENVELOPE *, char *)); 2027extern char *milter_envfrom __P((char **, ENVELOPE *, char *)); 2028extern char *milter_envrcpt __P((char **, ENVELOPE *, char *)); 2029extern char *milter_data __P((ENVELOPE *, char *)); 2030#endif /* _FFR_MILTER */ 2031 2032extern char *addquotes __P((char *)); 2033extern void allsignals __P((bool)); 2034extern char *arpadate __P((char *)); 2035extern bool atobool __P((char *)); 2036extern int atooct __P((char *)); 2037extern void auth_warning __P((ENVELOPE *, const char *, ...)); 2038extern int blocksignal __P((int)); 2039extern bool bitintersect __P((BITMAP256, BITMAP256)); 2040extern bool bitzerop __P((BITMAP256)); 2041extern void buildfname __P((char *, char *, char *, int)); 2042extern int checkcompat __P((ADDRESS *, ENVELOPE *)); 2043#ifdef XDEBUG 2044extern void checkfd012 __P((char *)); 2045extern void checkfdopen __P((int, char *)); 2046#endif /* XDEBUG */ 2047extern void checkfds __P((char *)); 2048extern bool chownsafe __P((int, bool)); 2049extern void cleanstrcpy __P((char *, char *, int)); 2050extern void clrdaemon __P((void)); 2051extern void collect __P((FILE *, bool, HDR **, ENVELOPE *)); 2052extern time_t convtime __P((char *, int)); 2053extern char **copyplist __P((char **, bool)); 2054extern void copy_class __P((int, int)); 2055extern time_t curtime __P((void)); 2056extern char *defcharset __P((ENVELOPE *)); 2057extern char *denlstring __P((char *, bool, bool)); 2058extern void disconnect __P((int, ENVELOPE *)); 2059extern bool dns_getcanonname __P((char *, int, bool, int *)); 2060extern pid_t dofork __P((void)); 2061extern int drop_privileges __P((bool)); 2062extern int dsntoexitstat __P((char *)); 2063extern void dumpfd __P((int, bool, bool)); 2064extern void dumpstate __P((char *)); 2065extern bool enoughdiskspace __P((long, bool)); 2066extern char *exitstat __P((char *)); 2067extern char *fgetfolded __P((char *, int, FILE *)); 2068extern void fill_fd __P((int, char *)); 2069extern char *find_character __P((char *, int)); 2070extern struct passwd *finduser __P((char *, bool *)); 2071extern void finis __P((bool, volatile int)); 2072extern void fixcrlf __P((char *, bool)); 2073extern long freediskspace __P((char *, long *)); 2074#if NETINET6 && NEEDSGETIPNODE 2075# if _FFR_FREEHOSTENT 2076extern void freehostent __P((struct hostent *)); 2077# endif /* _FFR_FREEHOSTENT */ 2078#endif /* NEEDSGETIPNODE && NETINET6 */ 2079extern char *get_column __P((char *, int, int, char *, int)); 2080extern char *getauthinfo __P((int, bool *)); 2081extern char *getcfname __P((void)); 2082extern char *getextenv __P((const char *)); 2083extern int getdtsize __P((void)); 2084extern BITMAP256 *getrequests __P((ENVELOPE *)); 2085extern char *getvendor __P((int)); 2086extern void help __P((char *, ENVELOPE *)); 2087extern void init_md __P((int, char **)); 2088extern void initdaemon __P((void)); 2089extern void inithostmaps __P((void)); 2090extern void initmacros __P((ENVELOPE *)); 2091extern void initsetproctitle __P((int, char **, char **)); 2092extern void init_vendor_macros __P((ENVELOPE *)); 2093extern SIGFUNC_DECL intsig __P((int)); 2094extern bool isloopback __P((SOCKADDR sa)); 2095extern void load_if_names __P((void)); 2096extern bool lockfile __P((int, char *, char *, int)); 2097extern void log_sendmail_pid __P((ENVELOPE *)); 2098extern char lower __P((int)); 2099extern void makelower __P((char *)); 2100extern int makeconnection_ds __P((char *, MCI *)); 2101extern int makeconnection __P((char *, volatile u_int, MCI *, ENVELOPE *)); 2102extern char * munchstring __P((char *, char **, int)); 2103extern struct hostent *myhostname __P((char *, int)); 2104extern char *nisplus_default_domain __P((void)); /* extern for Sun */ 2105extern bool path_is_dir __P((char *, bool)); 2106extern char *pintvl __P((time_t, bool)); 2107extern void printav __P((char **)); 2108extern void printmailer __P((MAILER *)); 2109extern void printopenfds __P((bool)); 2110extern void printqueue __P((void)); 2111extern void printrules __P((void)); 2112extern pid_t prog_open __P((char **, int *, ENVELOPE *)); 2113extern void putline __P((char *, MCI *)); 2114extern void putxline __P((char *, size_t, MCI *, int)); 2115extern void queueup_macros __P((int, FILE *, ENVELOPE *)); 2116extern void readcf __P((char *, bool, ENVELOPE *)); 2117extern SIGFUNC_DECL reapchild __P((int)); 2118extern int releasesignal __P((int)); 2119extern void resetlimits __P((void)); 2120extern bool rfc822_string __P((char *)); 2121extern FILE *safefopen __P((char *, int, int, long)); 2122extern void savemail __P((ENVELOPE *, bool)); 2123extern void seed_random __P((void)); 2124extern void sendtoargv __P((char **, ENVELOPE *)); 2125extern void setclientoptions __P((char *)); 2126extern bool setdaemonoptions __P((char *)); 2127extern void setdefaults __P((ENVELOPE *)); 2128extern void setdefuser __P((void)); 2129extern bool setvendor __P((char *)); 2130extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 2131extern sigfunc_t setsignal __P((int, sigfunc_t)); 2132extern void setuserenv __P((const char *, const char *)); 2133extern void settime __P((ENVELOPE *)); 2134extern char *sfgets __P((char *, int, FILE *, time_t, char *)); 2135extern char *shortenstring __P((const char *, int)); 2136extern char *shorten_hostname __P((char [])); 2137extern bool shorten_rfc822_string __P((char *, size_t)); 2138extern void shutdown_daemon __P((void)); 2139extern void sm_dopr __P((char *, const char *, va_list)); 2140extern void sm_free __P((void *)); 2141extern struct hostent *sm_gethostbyname __P((char *, int)); 2142extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 2143extern int sm_getla __P((ENVELOPE *)); 2144extern struct passwd *sm_getpwnam __P((char *)); 2145extern struct passwd *sm_getpwuid __P((UID_T)); 2146extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...)); 2147extern SIGFUNC_DECL sm_signal_noop __P((int)); 2148extern int sm_strcasecmp __P((const char *, const char *)); 2149extern void stop_sendmail __P((void)); 2150extern bool strcontainedin __P((char *, char *)); 2151extern void stripquotes __P((char *)); 2152extern int switch_map_find __P((char *, char *[], short [])); 2153extern bool transienterror __P((int)); 2154extern void tTflag __P((char *)); 2155extern void tTsetup __P((u_char *, int, char *)); 2156extern char *ttypath __P((void)); 2157extern void unlockqueue __P((ENVELOPE *)); 2158#if !HASUNSETENV 2159extern void unsetenv __P((char *)); 2160#endif /* !HASUNSETENV */ 2161extern char *username __P((void)); 2162extern bool usershellok __P((char *, char *)); 2163extern void vendor_post_defaults __P((ENVELOPE *)); 2164extern void vendor_pre_defaults __P((ENVELOPE *)); 2165extern int waitfor __P((pid_t)); 2166extern bool writable __P((char *, ADDRESS *, long)); 2167extern char *xalloc __P((int)); 2168extern char *xcalloc __P((size_t, size_t)); 2169extern char *xrealloc __P((void *, size_t)); 2170extern void xputs __P((const char *)); 2171extern char *xtextify __P((char *, char *)); 2172extern bool xtextok __P((char *)); 2173extern void xunlink __P((char *)); 2174extern char *xuntextify __P((char *)); 2175#endif /* _SENDMAIL_H */ 2176