rpc_svcout.c revision 109363
1/* 2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 3 * unrestricted use provided that this legend is included on all tape 4 * media and as a part of the software program in whole or part. Users 5 * may copy or modify Sun RPC without charge, but are not authorized 6 * to license or distribute it to anyone else except as part of a product or 7 * program developed by the user. 8 * 9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 12 * 13 * Sun RPC is provided with no support and without any obligation on the 14 * part of Sun Microsystems, Inc. to assist in its use, correction, 15 * modification or enhancement. 16 * 17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 19 * OR ANY PART THEREOF. 20 * 21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 22 * or profits or other special, indirect and consequential damages, even if 23 * Sun has been advised of the possibility of such damages. 24 * 25 * Sun Microsystems, Inc. 26 * 2550 Garcia Avenue 27 * Mountain View, California 94043 28 */ 29 30#ident "@(#)rpc_svcout.c 1.4 90/04/13 SMI" 31 32#if 0 33#ifndef lint 34static char sccsid[] = "@(#)rpc_svcout.c 1.29 89/03/30 (C) 1987 SMI"; 35#endif 36#endif 37 38#include <sys/cdefs.h> 39__FBSDID("$FreeBSD: head/usr.bin/rpcgen/rpc_svcout.c 109363 2003-01-16 07:27:30Z mbr $"); 40 41/* 42 * rpc_svcout.c, Server-skeleton outputter for the RPC protocol compiler 43 * Copyright (C) 1987, Sun Microsystems, Inc. 44 */ 45#include <stdio.h> 46#include <string.h> 47#include "rpc_parse.h" 48#include "rpc_util.h" 49 50extern int tirpc_socket; 51 52static char RQSTP[] = "rqstp"; 53static char TRANSP[] = "transp"; 54static char ARG[] = "argument"; 55static char RESULT[] = "result"; 56static char ROUTINE[] = "local"; 57static char RETVAL[] = "retval"; 58 59char _errbuf[256]; /* For all messages */ 60 61void internal_proctype( proc_list * ); 62static void write_real_program( definition * ); 63static void write_program( definition *, char * ); 64static void printerr( char *, char * ); 65static void printif( char *, char *, char *, char * ); 66static void write_inetmost( char * ); 67static void print_return( char * ); 68static void print_pmapunset( char * ); 69static void print_err_message( char * ); 70static void write_timeout_func( void ); 71static void write_pm_most( char *, int ); 72static void write_rpc_svc_fg( char *, char * ); 73static void open_log_file( char *, char * ); 74static void write_msg_out( void ); 75int nullproc( proc_list * ); 76 77 78static void 79p_xdrfunc(rname, typename) 80char* rname; 81char* typename; 82{ 83 if (Cflag) 84 f_print(fout, "\t\txdr_%s = (xdrproc_t) xdr_%s;\n", 85 rname, stringfix(typename)); 86 else 87 f_print(fout, "\t\txdr_%s = xdr_%s;\n", 88 rname, stringfix(typename)); 89} 90 91void 92internal_proctype(plist) 93 proc_list *plist; 94{ 95 f_print(fout, "static "); 96 ptype(plist->res_prefix, plist->res_type, 1); 97 f_print(fout, "*"); 98} 99 100 101/* 102 * write most of the service, that is, everything but the registrations. 103 */ 104void 105write_most(infile, netflag, nomain) 106 char *infile; /* our name */ 107 int netflag; 108 int nomain; 109{ 110 if (inetdflag || pmflag) { 111 char* var_type; 112 var_type = (nomain? "extern" : "static"); 113 f_print(fout, "%s int _rpcpmstart;", var_type); 114 f_print(fout, "\t\t/* Started by a port monitor ? */\n"); 115 if (!tirpcflag || tirpc_socket) { 116 f_print(fout, "%s int _rpcfdtype;", var_type); 117 f_print(fout, "\n\t\t /* Whether Stream or \ 118Datagram ? */\n"); 119 } 120 121 if (timerflag) { 122 f_print(fout, " /* States a server can be in \ 123wrt request */\n\n"); 124 f_print(fout, "#define\t_IDLE 0\n"); 125 f_print(fout, "#define\t_SERVED 1\n"); 126 f_print(fout, "#define\t_SERVING 2\n\n"); 127 f_print(fout, "static int _rpcsvcstate = _IDLE;"); 128 f_print(fout, "\t /* Set when a request is \ 129serviced */\n"); 130 131 if (mtflag) { 132 f_print(fout, "mutex_t _svcstate_lock;"); 133 f_print(fout, "\t\t\t/* Mutex lock for variable _rpcsvcstate */\n"); 134 135 } 136 137 } 138 139 write_svc_aux(nomain); 140 } 141 /* write out dispatcher and stubs */ 142 write_programs(nomain? (char *)NULL : "static"); 143 144 if (nomain) 145 return; 146 147 f_print(fout, "\nint\n"); 148 f_print(fout, "main()\n"); 149 f_print(fout, "{\n"); 150 if (tirpcflag) { 151 if (!inetdflag) 152 f_print(fout, "\t"); 153 f_print(fout, "\tint maxrec = RPC_MAXDATASIZE;\n"); 154 } 155 if (inetdflag) { 156 write_inetmost(infile); 157 /* Includes call to write_rpc_svc_fg() */ 158 } else { 159 if (tirpcflag) { 160 if (netflag) { 161 f_print(fout, 162 "\tregister SVCXPRT *%s;\n", TRANSP); 163 f_print(fout, 164 "\tstruct netconfig *nconf = NULL;\n"); 165 } 166 f_print(fout, "\tpid_t pid;\n"); 167 f_print(fout, "\tint i;\n"); 168 if (pmflag) { 169 if (tirpc_socket) { 170 f_print(fout, "\tstruct sockaddr_storage saddr;\n"); 171 f_print(fout, "\tint asize = sizeof (saddr);\n\n"); 172 } else 173 f_print(fout, "\tchar mname[FMNAMESZ + 1];\n\n"); 174 } 175 176 if (mtflag & timerflag) 177 f_print(fout, "\tmutex_init(&_svcstate_lock, USYNC_THREAD, NULL);\n"); 178 if (pmflag) { 179 write_pm_most(infile, netflag); 180 f_print(fout, "\telse {\n"); 181 write_rpc_svc_fg(infile, "\t\t"); 182 f_print(fout, "\t}\n"); 183 } else 184 write_rpc_svc_fg(infile, "\t\t"); 185 186 } else { 187 f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP); 188 f_print(fout, "\n"); 189 print_pmapunset("\t"); 190 } 191 } 192 193 if (logflag && !inetdflag) { 194 open_log_file(infile, "\t"); 195 } 196} 197 198/* 199 * write a registration for the given transport 200 */ 201void 202write_netid_register(transp) 203 char *transp; 204{ 205 list *l; 206 definition *def; 207 version_list *vp; 208 char *sp; 209 char tmpbuf[32]; 210 211 sp = ""; 212 f_print(fout, "\n"); 213 f_print(fout, "%s\tnconf = getnetconfigent(\"%s\");\n", sp, transp); 214 f_print(fout, "%s\tif (nconf == NULL) {\n", sp); 215 (void) sprintf(_errbuf, "cannot find %s netid.", transp); 216 sprintf(tmpbuf, "%s\t\t", sp); 217 print_err_message(tmpbuf); 218 f_print(fout, "%s\t\texit(1);\n", sp); 219 f_print(fout, "%s\t}\n", sp); 220 if (tirpcflag) { 221 f_print(fout, "%s\t%s = svc_tli_create(RPC_ANYFD, ", 222 sp, TRANSP); 223 f_print(fout,"nconf, 0, RPC_MAXDATASIZE, RPC_MAXDATASIZE);\n"); 224 } else { 225 f_print(fout, 226 "%s\t%s = svc_tli_create(RPC_ANYFD, nconf, 0, 0, 0);\n", 227 sp, TRANSP); 228 } 229 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 230 (void) sprintf(_errbuf, "cannot create %s service.", transp); 231 print_err_message(tmpbuf); 232 f_print(fout, "%s\t\texit(1);\n", sp); 233 f_print(fout, "%s\t}\n", sp); 234 235 for (l = defined; l != NULL; l = l->next) { 236 def = (definition *) l->val; 237 if (def->def_kind != DEF_PROGRAM) { 238 continue; 239 } 240 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 241 f_print(fout, 242 "%s\t(void) rpcb_unset(%s, %s, nconf);\n", 243 sp, def->def_name, vp->vers_name); 244 f_print(fout, 245 "%s\tif (!svc_reg(%s, %s, %s, ", 246 sp, TRANSP, def->def_name, vp->vers_name); 247 pvname(def->def_name, vp->vers_num); 248 f_print(fout, ", nconf)) {\n"); 249 (void) sprintf(_errbuf, 250 "unable to register (%s, %s, %s).", 251 def->def_name, vp->vers_name, transp); 252 print_err_message(tmpbuf); 253 f_print(fout, "%s\t\texit(1);\n", sp); 254 f_print(fout, "%s\t}\n", sp); 255 } 256 } 257 f_print(fout, "%s\tfreenetconfigent(nconf);\n", sp); 258} 259 260/* 261 * write a registration for the given transport for TLI 262 */ 263void 264write_nettype_register(transp) 265 char *transp; 266{ 267 list *l; 268 definition *def; 269 version_list *vp; 270 271 for (l = defined; l != NULL; l = l->next) { 272 def = (definition *) l->val; 273 if (def->def_kind != DEF_PROGRAM) { 274 continue; 275 } 276 if (tirpcflag) { 277 f_print(fout, 278 "\trpc_control(RPC_SVC_CONNMAXREC_SET, &maxrec);\n"); 279 } 280 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 281 f_print(fout, "\tif (!svc_create("); 282 pvname(def->def_name, vp->vers_num); 283 f_print(fout, ", %s, %s, \"%s\")) {\n", 284 def->def_name, vp->vers_name, transp); 285 (void) sprintf(_errbuf, 286 "unable to create (%s, %s) for %s.", 287 def->def_name, vp->vers_name, transp); 288 print_err_message("\t\t"); 289 f_print(fout, "\t\texit(1);\n"); 290 f_print(fout, "\t}\n"); 291 } 292 } 293} 294 295/* 296 * write the rest of the service 297 */ 298void 299write_rest() 300{ 301 f_print(fout, "\n"); 302 if (inetdflag) { 303 f_print(fout, "\tif (%s == (SVCXPRT *)NULL) {\n", TRANSP); 304 (void) sprintf(_errbuf, "could not create a handle"); 305 print_err_message("\t\t"); 306 f_print(fout, "\t\texit(1);\n"); 307 f_print(fout, "\t}\n"); 308 if (timerflag) { 309 f_print(fout, "\tif (_rpcpmstart) {\n"); 310 f_print(fout, 311 "\t\t(void) signal(SIGALRM, %s closedown);\n", 312 Cflag? "(SIG_PF)":"(void(*)())"); 313 f_print(fout, "\t\t(void) \ 314alarm(_RPCSVC_CLOSEDOWN/2);\n"); 315 f_print(fout, "\t}\n"); 316 } 317 } 318 f_print(fout, "\tsvc_run();\n"); 319 (void) sprintf(_errbuf, "svc_run returned"); 320 print_err_message("\t"); 321 f_print(fout, "\texit(1);\n"); 322 f_print(fout, "\t/* NOTREACHED */\n"); 323 f_print(fout, "}\n"); 324} 325 326void 327write_programs(storage) 328 char *storage; 329{ 330 list *l; 331 definition *def; 332 333 /* write out stubs for procedure definitions */ 334 for (l = defined; l != NULL; l = l->next) { 335 def = (definition *) l->val; 336 if (def->def_kind == DEF_PROGRAM) { 337 write_real_program(def); 338 } 339 } 340 341 /* write out dispatcher for each program */ 342 for (l = defined; l != NULL; l = l->next) { 343 def = (definition *) l->val; 344 if (def->def_kind == DEF_PROGRAM) { 345 write_program(def, storage); 346 } 347 } 348 349 350} 351 352/* 353 * write out definition of internal function (e.g. _printmsg_1(...)) 354 * which calls server's defintion of actual function (e.g. printmsg_1(...)). 355 * Unpacks single user argument of printmsg_1 to call-by-value format 356 * expected by printmsg_1. 357 */ 358static void 359write_real_program(def) 360 definition *def; 361{ 362 version_list *vp; 363 proc_list *proc; 364 decl_list *l; 365 366 if (!newstyle) return; /* not needed for old style */ 367 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 368 for (proc = vp->procs; proc != NULL; proc = proc->next) { 369 f_print(fout, "\n"); 370 if (!mtflag) 371 internal_proctype(proc); 372 else 373 f_print(fout, "int"); 374 f_print(fout, "\n_"); 375 pvname(proc->proc_name, vp->vers_num); 376 if (Cflag) { 377 f_print(fout, "("); 378 /* arg name */ 379 if (proc->arg_num > 1) 380 f_print(fout, proc->args.argname); 381 else 382 ptype(proc->args.decls->decl.prefix, 383 proc->args.decls->decl.type, 0); 384 if (mtflag) { 385 f_print(fout, " *argp, void *%s, struct svc_req *%s)\n", 386 RESULT, RQSTP); 387 388 389 } 390 else 391 f_print(fout, " *argp, struct svc_req *%s)\n", 392 RQSTP); 393 394 } else { 395 if (mtflag) 396 f_print(fout, "(argp, %s, %s)\n", RESULT, RQSTP); 397 else 398 f_print(fout, "(argp, %s)\n", RQSTP); 399 /* arg name */ 400 if (proc->arg_num > 1) 401 f_print(fout, "\t%s *argp;\n", 402 proc->args.argname); 403 else { 404 f_print(fout, "\t"); 405 ptype(proc->args.decls->decl.prefix, 406 proc->args.decls->decl.type, 0); 407 f_print(fout, " *argp;\n"); 408 } 409 if (mtflag) 410 f_print(fout, "\tvoid *%s;\n", RESULT); 411 f_print(fout, "\tstruct svc_req *%s;\n", RQSTP); 412 } 413 414 f_print(fout, "{\n"); 415 f_print(fout, "\treturn ("); 416 if (Cflag || mtflag) /* for mtflag, arguments are different */ 417 pvname_svc(proc->proc_name, vp->vers_num); 418 else 419 pvname(proc->proc_name, vp->vers_num); 420 f_print(fout, "("); 421 if (proc->arg_num < 2) { /* single argument */ 422 if (!streq(proc->args.decls->decl.type, "void")) 423 f_print(fout, "*argp, "); /* non-void */ 424 } else { 425 for (l = proc->args.decls; l != NULL; 426 l = l->next) 427 f_print(fout, "argp->%s, ", 428 l->decl.name); 429 } 430 if (mtflag) 431 f_print(fout, "%s, ",RESULT); 432 f_print(fout, "%s));\n}\n", RQSTP); 433 } 434 } 435} 436 437static void 438write_program(def, storage) 439 definition *def; 440 char *storage; 441{ 442 version_list *vp; 443 proc_list *proc; 444 int filled; 445 446 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 447 f_print(fout, "\n"); 448 if (storage != NULL) { 449 f_print(fout, "%s ", storage); 450 } 451 f_print(fout, "void\n"); 452 pvname(def->def_name, vp->vers_num); 453 454 if (Cflag) { 455 f_print(fout, "(struct svc_req *%s, ", RQSTP); 456 f_print(fout, "register SVCXPRT *%s)\n", TRANSP); 457 } else { 458 f_print(fout, "(%s, %s)\n", RQSTP, TRANSP); 459 f_print(fout, " struct svc_req *%s;\n", RQSTP); 460 f_print(fout, " register SVCXPRT *%s;\n", TRANSP); 461 } 462 463 f_print(fout, "{\n"); 464 465 filled = 0; 466 f_print(fout, "\tunion {\n"); 467 for (proc = vp->procs; proc != NULL; proc = proc->next) { 468 if (proc->arg_num < 2) { /* single argument */ 469 if (streq(proc->args.decls->decl.type, 470 "void")) { 471 continue; 472 } 473 filled = 1; 474 f_print(fout, "\t\t"); 475 ptype(proc->args.decls->decl.prefix, 476 proc->args.decls->decl.type, 0); 477 pvname(proc->proc_name, vp->vers_num); 478 f_print(fout, "_arg;\n"); 479 480 } else { 481 filled = 1; 482 f_print(fout, "\t\t%s", proc->args.argname); 483 f_print(fout, " "); 484 pvname(proc->proc_name, vp->vers_num); 485 f_print(fout, "_arg;\n"); 486 } 487 } 488 if (!filled) { 489 f_print(fout, "\t\tint fill;\n"); 490 } 491 f_print(fout, "\t} %s;\n", ARG); 492 493 if (mtflag) { 494 f_print(fout, "\tunion {\n"); 495 for (proc = vp->procs; proc != NULL; proc = proc->next) { 496 f_print(fout, "\t\t"); 497 ptype(proc->res_prefix, proc->res_type, 0); 498 pvname(proc->proc_name, vp->vers_num); 499 f_print(fout, "_res;\n"); 500 } 501 f_print(fout, "\t} %s;\n", RESULT); 502 f_print(fout, "\tbool_t %s;\n", RETVAL); 503 504 } else 505 f_print(fout, "\tchar *%s;\n", RESULT); 506 507 if (Cflag) { 508 f_print(fout, "\txdrproc_t xdr_%s, xdr_%s;\n", 509 ARG, RESULT); 510 if (mtflag) 511 f_print(fout, 512 "\tbool_t (*%s)(char *, void *, struct svc_req *);\n", 513 ROUTINE); 514 else 515 f_print(fout, 516 "\tchar *(*%s)(char *, struct svc_req *);\n", 517 ROUTINE); 518 } else { 519 f_print(fout, 520 "\tbool_t (*xdr_%s)(), (*xdr_%s)();\n", 521 ARG, RESULT); 522 if (mtflag) 523 f_print(fout, "\tbool_t (*%s)();\n", ROUTINE); 524 else 525 f_print(fout, "\tchar *(*%s)();\n", ROUTINE); 526 } 527 f_print(fout, "\n"); 528 529 if (timerflag) { 530 if (mtflag) 531 f_print(fout, "\tmutex_lock(&_svcstate_lock);\n"); 532 533 f_print(fout, "\t_rpcsvcstate = _SERVING;\n"); 534 if (mtflag) 535 f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n"); 536 } 537 538 f_print(fout, "\tswitch (%s->rq_proc) {\n", RQSTP); 539 if (!nullproc(vp->procs)) { 540 f_print(fout, "\tcase NULLPROC:\n"); 541 f_print(fout, 542 Cflag 543 ? "\t\t(void) svc_sendreply(%s,\n\t\t\t\ 544(xdrproc_t) xdr_void, (char *)NULL);\n" 545 : "\t\t(void) svc_sendreply(%s, xdr_void,\n\t\t\t\ 546(char *)NULL);\n", 547 TRANSP); 548 print_return("\t\t"); 549 f_print(fout, "\n"); 550 } 551 for (proc = vp->procs; proc != NULL; proc = proc->next) { 552 f_print(fout, "\tcase %s:\n", proc->proc_name); 553 if (proc->arg_num < 2) { /* single argument */ 554 p_xdrfunc(ARG, proc->args.decls->decl.type); 555 } else { 556 p_xdrfunc(ARG, proc->args.argname); 557 } 558 p_xdrfunc(RESULT, proc->res_type); 559 560 if (Cflag) 561 if (mtflag) 562 f_print(fout, 563 "\t\t%s = (bool_t (*) (char *, void *, struct svc_req *))", 564 ROUTINE); 565 else 566 f_print(fout, 567 "\t\t%s = (char *(*)(char *, struct svc_req *)) ", 568 ROUTINE); 569 else 570 if (mtflag) 571 f_print(fout, "\t\t%s = (bool_t (*)()) ", 572 ROUTINE); 573 else 574 575 f_print(fout, "\t\t%s = (char *(*)()) ", 576 ROUTINE); 577 if (newstyle) { /* new style: calls internal routine */ 578 f_print(fout, "_"); 579 } 580 if ((Cflag || mtflag) && !newstyle) 581 pvname_svc(proc->proc_name, vp->vers_num); 582 else 583 pvname(proc->proc_name, vp->vers_num); 584 f_print(fout, ";\n"); 585 f_print(fout, "\t\tbreak;\n\n"); 586 } 587 f_print(fout, "\tdefault:\n"); 588 printerr("noproc", TRANSP); 589 print_return("\t\t"); 590 f_print(fout, "\t}\n"); 591 592 f_print(fout, 593 "\t(void) memset((char *)&%s, 0, sizeof (%s));\n", 594 ARG, ARG); 595 if (Cflag) 596 printif("getargs", TRANSP, "(caddr_t) &", ARG); 597 else 598 printif("getargs", TRANSP, "&", ARG); 599 printerr("decode", TRANSP); 600 print_return("\t\t"); 601 f_print(fout, "\t}\n"); 602 603 if (!mtflag) 604 if (Cflag) 605 f_print(fout, "\t%s = (*%s)((char *)&%s, %s);\n", 606 RESULT, ROUTINE, ARG, RQSTP); 607 else 608 f_print(fout, "\t%s = (*%s)(&%s, %s);\n", 609 RESULT, ROUTINE, ARG, RQSTP); 610 else 611 if (Cflag) 612 f_print(fout, "\t%s = (bool_t) (*%s)((char *)&%s, (void *)&%s, %s);\n", 613 RETVAL, ROUTINE, ARG, RESULT, RQSTP); 614 else 615 f_print(fout, "\t%s = (bool_t) (*%s)(&%s, &%s, %s);\n", 616 RETVAL, ROUTINE, ARG, RESULT, RQSTP); 617 618 619 620 621 if (mtflag) 622 f_print(fout, 623 "\tif (%s > 0 && !svc_sendreply(%s, xdr_%s, (char *)&%s)) {\n", 624 RETVAL, TRANSP, RESULT, RESULT); 625 else 626 f_print(fout, 627 "\tif (%s != NULL && !svc_sendreply(%s, xdr_%s, %s)) {\n", 628 RESULT, TRANSP, RESULT, RESULT); 629 630 printerr("systemerr", TRANSP); 631 f_print(fout, "\t}\n"); 632 633 if (Cflag) 634 printif("freeargs", TRANSP, "(caddr_t) &", ARG); 635 else 636 printif("freeargs", TRANSP, "&", ARG); 637 (void) sprintf(_errbuf, "unable to free arguments"); 638 print_err_message("\t\t"); 639 f_print(fout, "\t\texit(1);\n"); 640 f_print(fout, "\t}\n"); 641 /* print out free routine */ 642 if (mtflag) { 643 f_print(fout,"\tif (!"); 644 pvname(def->def_name, vp->vers_num); 645 f_print(fout,"_freeresult(%s, xdr_%s, (caddr_t) &%s))\n", 646 TRANSP, RESULT, RESULT); 647 (void) sprintf(_errbuf, "unable to free results"); 648 print_err_message("\t\t"); 649 f_print(fout, "\n"); 650 }; 651 print_return("\t"); 652 f_print(fout, "}\n"); 653 } 654} 655 656static void 657printerr(err, transp) 658 char *err; 659 char *transp; 660{ 661 f_print(fout, "\t\tsvcerr_%s(%s);\n", err, transp); 662} 663 664static void 665printif(proc, transp, prefix, arg) 666 char *proc; 667 char *transp; 668 char *prefix; 669 char *arg; 670{ 671 f_print(fout, "\tif (!svc_%s(%s, xdr_%s, (char *)%s%s)) {\n", 672 proc, transp, arg, prefix, arg); 673} 674 675int 676nullproc(proc) 677 proc_list *proc; 678{ 679 for (; proc != NULL; proc = proc->next) { 680 if (streq(proc->proc_num, "0")) { 681 return (1); 682 } 683 } 684 return (0); 685} 686 687static void 688write_inetmost(infile) 689 char *infile; 690{ 691 f_print(fout, "\tregister SVCXPRT *%s;\n", TRANSP); 692 f_print(fout, "\tint sock;\n"); 693 f_print(fout, "\tint proto;\n"); 694 f_print(fout, "\tstruct sockaddr_in saddr;\n"); 695 f_print(fout, "\tint asize = sizeof (saddr);\n"); 696 f_print(fout, "\n"); 697 f_print(fout, 698 "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n"); 699 f_print(fout, "\t\tint ssize = sizeof (int);\n\n"); 700 f_print(fout, "\t\tif (saddr.sin_family != AF_INET)\n"); 701 f_print(fout, "\t\t\texit(1);\n"); 702 f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n"); 703 f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n"); 704 f_print(fout, "\t\t\texit(1);\n"); 705 f_print(fout, "\t\tsock = 0;\n"); 706 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 707 f_print(fout, "\t\tproto = 0;\n"); 708 open_log_file(infile, "\t\t"); 709 f_print(fout, "\t} else {\n"); 710 write_rpc_svc_fg(infile, "\t\t"); 711 f_print(fout, "\t\tsock = RPC_ANYSOCK;\n"); 712 print_pmapunset("\t\t"); 713 f_print(fout, "\t}\n"); 714} 715 716static void 717print_return(space) 718 char *space; 719{ 720 if (exitnow) 721 f_print(fout, "%sexit(0);\n", space); 722 else { 723 if (timerflag) { 724 if (mtflag) 725 f_print(fout, "%smutex_lock(&_svcstate_lock);\n", space); 726 f_print(fout, "%s_rpcsvcstate = _SERVED;\n", space); 727 if (mtflag) 728 f_print(fout, "%smutex_unlock(&_svcstate_lock);\n", space); 729 } 730 f_print(fout, "%sreturn;\n", space); 731 } 732} 733 734static void 735print_pmapunset(space) 736 char *space; 737{ 738 list *l; 739 definition *def; 740 version_list *vp; 741 742 for (l = defined; l != NULL; l = l->next) { 743 def = (definition *) l->val; 744 if (def->def_kind == DEF_PROGRAM) { 745 for (vp = def->def.pr.versions; vp != NULL; 746 vp = vp->next) { 747 f_print(fout, "%s(void) pmap_unset(%s, %s);\n", 748 space, def->def_name, vp->vers_name); 749 } 750 } 751 } 752} 753 754static void 755print_err_message(space) 756 char *space; 757{ 758 if (logflag) 759 f_print(fout, "%ssyslog(LOG_ERR, \"%s\");\n", space, _errbuf); 760 else if (inetdflag || pmflag) 761 f_print(fout, "%s_msgout(\"%s\");\n", space, _errbuf); 762 else 763 f_print(fout, "%sfprintf(stderr, \"%s\");\n", space, _errbuf); 764} 765 766/* 767 * Write the server auxiliary function (_msgout, timeout) 768 */ 769void 770write_svc_aux(nomain) 771 int nomain; 772{ 773 if (!logflag) 774 write_msg_out(); 775 if (!nomain) 776 write_timeout_func(); 777} 778 779/* 780 * Write the _msgout function 781 */ 782 783static void 784write_msg_out(void) 785{ 786 f_print(fout, "\n"); 787/* 788 * Avoid making _msgout() static -- it's useful to have it visible 789 * in the toplevel RPC server code. 790 */ 791 f_print(fout, "static\n"); 792 793 if (!Cflag) { 794 f_print(fout, "void _msgout(msg)\n"); 795 f_print(fout, "\tchar *msg;\n"); 796 } else { 797 f_print(fout, "void _msgout(const char* msg)\n"); 798 } 799 f_print(fout, "{\n"); 800 f_print(fout, "#ifdef RPC_SVC_FG\n"); 801 if (inetdflag || pmflag) 802 f_print(fout, "\tif (_rpcpmstart)\n"); 803 f_print(fout, "\t\tsyslog(LOG_ERR, \"%%s\", msg);\n"); 804 f_print(fout, "\telse\n"); 805 f_print(fout, 806 "\t\t(void) fprintf(stderr, \"%%s\\n\", msg);\n"); 807 f_print(fout, "#else\n"); 808 f_print(fout, "\tsyslog(LOG_ERR, \"%%s\", msg);\n"); 809 f_print(fout, "#endif\n"); 810 f_print(fout, "}\n"); 811} 812 813/* 814 * Write the timeout function 815 */ 816static void 817write_timeout_func(void) 818{ 819 if (!timerflag) 820 return; 821 822 f_print(fout, "\n"); 823 f_print(fout, "static void\n"); 824 if (!Cflag) { 825 f_print(fout, "closedown(sig)\n"); 826 f_print(fout, "\tint sig;\n"); 827 } else 828 f_print(fout, "closedown(int sig)\n"); 829 f_print(fout, "{\n"); 830 if (mtflag) 831 f_print(fout, "\tmutex_lock(&_svcstate_lock);\n"); 832 f_print(fout, "\tif (_rpcsvcstate == _IDLE) {\n"); 833 f_print(fout, "\t\textern fd_set svc_fdset;\n"); 834 f_print(fout, "\t\tstatic int size;\n"); 835 f_print(fout, "\t\tint i, openfd;\n"); 836 if (tirpcflag && pmflag) { 837 f_print(fout, "\t\tstruct t_info tinfo;\n\n"); 838 f_print(fout, 839 "\t\tif (!t_getinfo(0, &tinfo) && (tinfo.servtype == T_CLTS))\n"); 840 } else { 841 f_print(fout, "\n\t\tif (_rpcfdtype == SOCK_DGRAM)\n"); 842 } 843 f_print(fout, "\t\t\texit(0);\n"); 844 f_print(fout, "\t\tif (size == 0) {\n"); 845 if (tirpcflag) { 846 f_print(fout, "\t\t\tstruct rlimit rl;\n\n"); 847 f_print(fout, "\t\t\trl.rlim_max = 0;\n"); 848 f_print(fout, "\t\t\tgetrlimit(RLIMIT_NOFILE, &rl);\n"); 849 f_print(fout, "\t\t\tif ((size = rl.rlim_max) == 0) {\n"); 850 851 if (mtflag) 852 f_print(fout, "\t\t\t\tmutex_unlock(&_svcstate_lock);\n"); 853 854 f_print(fout, "\t\t\t\treturn;\n\t\t\t}\n"); 855 } else { 856 f_print(fout, "\t\t\tsize = getdtablesize();\n"); 857 } 858 f_print(fout, "\t\t}\n"); 859 f_print(fout, 860 "\t\tfor (i = 0, openfd = 0; i < size && openfd < 2; i++)\n"); 861 f_print(fout, "\t\t\tif (FD_ISSET(i, &svc_fdset))\n"); 862 f_print(fout, "\t\t\t\topenfd++;\n"); 863 f_print(fout, "\t\tif (openfd <= 1)\n"); 864 f_print(fout, "\t\t\texit(0);\n"); 865 f_print(fout, "\t}\n"); 866 f_print(fout, "\tif (_rpcsvcstate == _SERVED)\n"); 867 f_print(fout, "\t\t_rpcsvcstate = _IDLE;\n\n"); 868 if (mtflag) 869 f_print(fout, "\tmutex_unlock(&_svcstate_lock);\n"); 870 871 f_print(fout, "\t(void) signal(SIGALRM, %s closedown);\n", 872 Cflag? "(SIG_PF)" : "(void(*)())"); 873 f_print(fout, "\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n"); 874 f_print(fout, "}\n"); 875 876} 877 878/* 879 * Write the most of port monitor support 880 */ 881static void 882write_pm_most(infile, netflag) 883 char *infile; 884 int netflag; 885{ 886 list *l; 887 definition *def; 888 version_list *vp; 889 890 if (tirpc_socket) { 891 f_print(fout, 892 "\tif (getsockname(0, (struct sockaddr *)&saddr, &asize) == 0) {\n"); 893 f_print(fout, "\t\tint ssize = sizeof (int);\n"); 894 } else { 895 f_print(fout, "\tif (!ioctl(0, I_LOOK, mname) &&\n"); 896 f_print(fout, "\t\t(!strcmp(mname, \"sockmod\") ||"); 897 f_print(fout, " !strcmp(mname, \"timod\"))) {\n"); 898 } 899 f_print(fout, " !strcmp(mname, \"timod\"))) {\n"); 900 f_print(fout, "\t\tchar *netid;\n"); 901 if (!netflag) { /* Not included by -n option */ 902 f_print(fout, "\t\tstruct netconfig *nconf = NULL;\n"); 903 f_print(fout, "\t\tSVCXPRT *%s;\n", TRANSP); 904 } 905 if (timerflag) 906 f_print(fout, "\t\tint pmclose;\n"); 907/* 908 * Not necessary, defined in /usr/include/stdlib 909 * f_print(fout, "\t\textern char *getenv();\n"); 910 */ 911 f_print(fout, "\n"); 912 if (tirpc_socket) { 913 f_print(fout, "\t\tif (saddr.ss_family != AF_INET &&\n"); 914 f_print(fout, "\t\t saddr.ss_family != AF_INET6)\n"); 915 f_print(fout, "\t\t\texit(1);\n"); 916 f_print(fout, "\t\tif (getsockopt(0, SOL_SOCKET, SO_TYPE,\n"); 917 f_print(fout, "\t\t\t\t(char *)&_rpcfdtype, &ssize) == -1)\n"); 918 f_print(fout, "\t\t\texit(1);\n"); 919 } 920 f_print(fout, "\t\t_rpcpmstart = 1;\n"); 921 open_log_file(infile, "\t\t"); 922 f_print(fout, "\n\t\tif ((netid = \ 923getenv(\"NLSPROVIDER\")) == NULL) {\n"); 924 925 if (timerflag) { 926 f_print(fout, "\t\t/* started from inetd */\n"); 927 f_print(fout, "\t\t\tpmclose = 1;\n"); 928 } 929 f_print(fout, 930 "\t\t} else {\n"); 931 f_print(fout, "\t\t\tif ((nconf = getnetconfigent(netid)) == NULL)\n"); 932 sprintf(_errbuf, "cannot get transport info"); 933 print_err_message("\t\t\t\t"); 934 if (timerflag) { 935 if (tirpc_socket) 936 f_print(fout, "\n\t\t\tpmclose = 1;\t/* XXX */\n"); 937 else 938 f_print(fout, 939 "\n\t\t\tpmclose = (t_getstate(0) != T_DATAXFER);\n"); 940 } 941 f_print(fout, "\t\t}\n"); 942 /* 943 * A kludgy support for inetd services. Inetd only works with 944 * sockmod, and RPC works only with timod, hence all this jugglery 945 */ 946 if (!tirpc_socket) { 947 f_print(fout, "\t\tif (strcmp(mname, \"sockmod\") == 0) {\n"); 948 f_print(fout, "\t\t\tif (ioctl(0, I_POP, 0) || "); 949 f_print(fout, "ioctl(0, I_PUSH, \"timod\")) {\n"); 950 sprintf(_errbuf, "could not get the right module"); 951 print_err_message("\t\t\t\t"); 952 f_print(fout, "\t\t\t\texit(1);\n"); 953 f_print(fout, "\t\t\t}\n"); 954 f_print(fout, "\t\t}\n"); 955 } 956 if (tirpcflag) { 957 f_print(fout, 958 "\t\tif ((%s = svc_tli_create(0, nconf, NULL, \ 959 RPC_MAXDATASIZE, RPC_MAXDATASIZE)) \ 960 == NULL) {\n", 961 TRANSP); 962 } else { 963 f_print(fout, 964 "\t\tif ((%s = svc_tli_create(0, nconf, NULL, 0, 0)) \ 965 == NULL) {\n", 966 TRANSP); 967 } 968 sprintf(_errbuf, "cannot create server handle"); 969 print_err_message("\t\t\t"); 970 f_print(fout, "\t\t\texit(1);\n"); 971 f_print(fout, "\t\t}\n"); 972 f_print(fout, "\t\tif (nconf)\n"); 973 f_print(fout, "\t\t\tfreenetconfigent(nconf);\n"); 974 for (l = defined; l != NULL; l = l->next) { 975 def = (definition *) l->val; 976 if (def->def_kind != DEF_PROGRAM) { 977 continue; 978 } 979 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 980 f_print(fout, 981 "\t\tif (!svc_reg(%s, %s, %s, ", 982 TRANSP, def->def_name, vp->vers_name); 983 pvname(def->def_name, vp->vers_num); 984 f_print(fout, ", 0)) {\n"); 985 (void) sprintf(_errbuf, "unable to register (%s, %s).", 986 def->def_name, vp->vers_name); 987 print_err_message("\t\t\t"); 988 f_print(fout, "\t\t\texit(1);\n"); 989 f_print(fout, "\t\t}\n"); 990 } 991 } 992 if (timerflag) { 993 f_print(fout, "\t\tif (pmclose) {\n"); 994 f_print(fout, "\t\t\t(void) signal(SIGALRM, %s closedown);\n", 995 Cflag? "(SIG_PF)" : "(void(*)())"); 996 f_print(fout, "\t\t\t(void) alarm(_RPCSVC_CLOSEDOWN/2);\n"); 997 f_print(fout, "\t\t}\n"); 998 } 999 f_print(fout, "\t\tsvc_run();\n"); 1000 f_print(fout, "\t\texit(1);\n"); 1001 f_print(fout, "\t\t/* NOTREACHED */\n"); 1002 f_print(fout, "\t}"); 1003} 1004 1005/* 1006 * Support for backgrounding the server if self started. 1007 */ 1008static void 1009write_rpc_svc_fg(infile, sp) 1010 char *infile; 1011 char *sp; 1012{ 1013 f_print(fout, "#ifndef RPC_SVC_FG\n"); 1014 f_print(fout, "%sint size;\n", sp); 1015 if (tirpcflag) 1016 f_print(fout, "%sstruct rlimit rl;\n", sp); 1017 if (inetdflag) 1018 f_print(fout, "%sint pid, i;\n\n", sp); 1019 f_print(fout, "%spid = fork();\n", sp); 1020 f_print(fout, "%sif (pid < 0) {\n", sp); 1021 f_print(fout, "%s\tperror(\"cannot fork\");\n", sp); 1022 f_print(fout, "%s\texit(1);\n", sp); 1023 f_print(fout, "%s}\n", sp); 1024 f_print(fout, "%sif (pid)\n", sp); 1025 f_print(fout, "%s\texit(0);\n", sp); 1026 /* get number of file descriptors */ 1027 if (tirpcflag) { 1028 f_print(fout, "%srl.rlim_max = 0;\n", sp); 1029 f_print(fout, "%sgetrlimit(RLIMIT_NOFILE, &rl);\n", sp); 1030 f_print(fout, "%sif ((size = rl.rlim_max) == 0)\n", sp); 1031 f_print(fout, "%s\texit(1);\n", sp); 1032 } else { 1033 f_print(fout, "%ssize = getdtablesize();\n", sp); 1034 } 1035 1036 f_print(fout, "%sfor (i = 0; i < size; i++)\n", sp); 1037 f_print(fout, "%s\t(void) close(i);\n", sp); 1038 /* Redirect stderr and stdout to console */ 1039 f_print(fout, "%si = open(\"/dev/console\", 2);\n", sp); 1040 f_print(fout, "%s(void) dup2(i, 1);\n", sp); 1041 f_print(fout, "%s(void) dup2(i, 2);\n", sp); 1042 /* This removes control of the controlling terminal */ 1043 if (tirpcflag) 1044 f_print(fout, "%ssetsid();\n", sp); 1045 else { 1046 f_print(fout, "%si = open(\"/dev/tty\", 2);\n", sp); 1047 f_print(fout, "%sif (i >= 0) {\n", sp); 1048 f_print(fout, 1049 "%s\t(void) ioctl(i, TIOCNOTTY, (char *)NULL);\n", sp); 1050 f_print(fout, "%s\t(void) close(i);\n", sp); 1051 f_print(fout, "%s}\n", sp); 1052 } 1053 if (!logflag) 1054 open_log_file(infile, sp); 1055 f_print(fout, "#endif\n"); 1056 if (logflag) 1057 open_log_file(infile, sp); 1058} 1059 1060static void 1061open_log_file(infile, sp) 1062 char *infile; 1063 char *sp; 1064{ 1065 char *s; 1066 1067 s = strrchr(infile, '.'); 1068 if (s) 1069 *s = '\0'; 1070 f_print(fout, "%sopenlog(\"%s\", LOG_PID, LOG_DAEMON);\n", sp, infile); 1071 if (s) 1072 *s = '.'; 1073} 1074 1075 1076 1077 1078/* 1079 * write a registration for the given transport for Inetd 1080 */ 1081void 1082write_inetd_register(transp) 1083 char *transp; 1084{ 1085 list *l; 1086 definition *def; 1087 version_list *vp; 1088 char *sp; 1089 int isudp; 1090 char tmpbuf[32]; 1091 1092 if (inetdflag) 1093 sp = "\t"; 1094 else 1095 sp = ""; 1096 if (streq(transp, "udp")) 1097 isudp = 1; 1098 else 1099 isudp = 0; 1100 f_print(fout, "\n"); 1101 if (inetdflag) { 1102 f_print(fout, 1103 "\tif ((_rpcfdtype == 0) || (_rpcfdtype == %s)) {\n", 1104 isudp ? "SOCK_DGRAM" : "SOCK_STREAM"); 1105 } 1106 if (tirpcflag) 1107 f_print(fout, "\t\trpc_control(RPC_SVC_CONNMAXREC_SET, &maxrec);\n"); 1108 f_print(fout, "%s\t%s = svc%s_create(%s", 1109 sp, TRANSP, transp, inetdflag? "sock": "RPC_ANYSOCK"); 1110 if (!isudp) 1111 f_print(fout, ", 0, 0"); 1112 f_print(fout, ");\n"); 1113 f_print(fout, "%s\tif (%s == NULL) {\n", sp, TRANSP); 1114 (void) sprintf(_errbuf, "cannot create %s service.", transp); 1115 (void) sprintf(tmpbuf, "%s\t\t", sp); 1116 print_err_message(tmpbuf); 1117 f_print(fout, "%s\t\texit(1);\n", sp); 1118 f_print(fout, "%s\t}\n", sp); 1119 1120 if (inetdflag) { 1121 f_print(fout, "%s\tif (!_rpcpmstart)\n\t", sp); 1122 f_print(fout, "%s\tproto = IPPROTO_%s;\n", 1123 sp, isudp ? "UDP": "TCP"); 1124 } 1125 for (l = defined; l != NULL; l = l->next) { 1126 def = (definition *) l->val; 1127 if (def->def_kind != DEF_PROGRAM) { 1128 continue; 1129 } 1130 for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) { 1131 f_print(fout, "%s\tif (!svc_register(%s, %s, %s, ", 1132 sp, TRANSP, def->def_name, vp->vers_name); 1133 pvname(def->def_name, vp->vers_num); 1134 if (inetdflag) 1135 f_print(fout, ", proto)) {\n"); 1136 else 1137 f_print(fout, ", IPPROTO_%s)) {\n", 1138 isudp ? "UDP": "TCP"); 1139 (void) sprintf(_errbuf, 1140 "unable to register (%s, %s, %s).", 1141 def->def_name, vp->vers_name, transp); 1142 print_err_message(tmpbuf); 1143 f_print(fout, "%s\t\texit(1);\n", sp); 1144 f_print(fout, "%s\t}\n", sp); 1145 } 1146 } 1147 if (inetdflag) 1148 f_print(fout, "\t}\n"); 1149} 1150