14227346bSdist /* 20942ea6aSbostic * Copyright (c) 1983 Eric P. Allman 32b191fa3Sbostic * Copyright (c) 1988, 1993 42b191fa3Sbostic * The Regents of the University of California. All rights reserved. 5e70a7521Sbostic * 63bc94712Sbostic * %sccs.include.redist.c% 74227346bSdist */ 84227346bSdist 94227346bSdist #ifndef lint 10*44f2317fSeric static char sccsid[] = "@(#)deliver.c 8.11 (Berkeley) 08/08/93"; 11e70a7521Sbostic #endif /* not lint */ 124227346bSdist 13fcde9cc8Sbostic #include "sendmail.h" 14f28da541Smiriam #include <netdb.h> 15911693bfSbostic #include <errno.h> 16134746fbSeric #ifdef NAMED_BIND 17912a731aSbostic #include <arpa/nameser.h> 18912a731aSbostic #include <resolv.h> 19f170942cSeric 20f170942cSeric extern int h_errno; 21134746fbSeric #endif 2225a99e2eSeric 2325a99e2eSeric /* 249c9e68d9Seric ** SENDALL -- actually send all the messages. 259c9e68d9Seric ** 269c9e68d9Seric ** Parameters: 279c9e68d9Seric ** e -- the envelope to send. 289c9e68d9Seric ** mode -- the delivery mode to use. If SM_DEFAULT, use 299c9e68d9Seric ** the current e->e_sendmode. 309c9e68d9Seric ** 319c9e68d9Seric ** Returns: 329c9e68d9Seric ** none. 339c9e68d9Seric ** 349c9e68d9Seric ** Side Effects: 359c9e68d9Seric ** Scans the send lists and sends everything it finds. 369c9e68d9Seric ** Delivers any appropriate error messages. 379c9e68d9Seric ** If we are running in a non-interactive mode, takes the 389c9e68d9Seric ** appropriate action. 399c9e68d9Seric */ 409c9e68d9Seric 419c9e68d9Seric sendall(e, mode) 429c9e68d9Seric ENVELOPE *e; 439c9e68d9Seric char mode; 449c9e68d9Seric { 459c9e68d9Seric register ADDRESS *q; 469c9e68d9Seric char *owner; 479c9e68d9Seric int otherowners; 489c9e68d9Seric register ENVELOPE *ee; 499c9e68d9Seric ENVELOPE *splitenv = NULL; 506103d9b4Seric bool announcequeueup; 519c9e68d9Seric 527880f3e4Seric /* 537880f3e4Seric ** If we have had global, fatal errors, don't bother sending 547880f3e4Seric ** the message at all if we are in SMTP mode. Local errors 557880f3e4Seric ** (e.g., a single address failing) will still cause the other 567880f3e4Seric ** addresses to be sent. 577880f3e4Seric */ 587880f3e4Seric 597880f3e4Seric if (bitset(EF_FATALERRS, e->e_flags) && OpMode == MD_SMTP) 60896b16f6Seric { 61896b16f6Seric e->e_flags |= EF_CLRQUEUE; 62896b16f6Seric return; 63896b16f6Seric } 64896b16f6Seric 659c9e68d9Seric /* determine actual delivery mode */ 669c9e68d9Seric if (mode == SM_DEFAULT) 679c9e68d9Seric { 689c9e68d9Seric mode = e->e_sendmode; 699c9e68d9Seric if (mode != SM_VERIFY && 709c9e68d9Seric shouldqueue(e->e_msgpriority, e->e_ctime)) 719c9e68d9Seric mode = SM_QUEUE; 726103d9b4Seric announcequeueup = mode == SM_QUEUE; 739c9e68d9Seric } 746103d9b4Seric else 756103d9b4Seric announcequeueup = FALSE; 769c9e68d9Seric 779c9e68d9Seric if (tTd(13, 1)) 789c9e68d9Seric { 799c9e68d9Seric printf("\nSENDALL: mode %c, e_from ", mode); 809c9e68d9Seric printaddr(&e->e_from, FALSE); 819c9e68d9Seric printf("sendqueue:\n"); 829c9e68d9Seric printaddr(e->e_sendqueue, TRUE); 839c9e68d9Seric } 849c9e68d9Seric 859c9e68d9Seric /* 869c9e68d9Seric ** Do any preprocessing necessary for the mode we are running. 879c9e68d9Seric ** Check to make sure the hop count is reasonable. 889c9e68d9Seric ** Delete sends to the sender in mailing lists. 899c9e68d9Seric */ 909c9e68d9Seric 919c9e68d9Seric CurEnv = e; 929c9e68d9Seric 939c9e68d9Seric if (e->e_hopcount > MaxHopCount) 949c9e68d9Seric { 959c9e68d9Seric errno = 0; 969c9e68d9Seric syserr("554 too many hops %d (%d max): from %s, to %s", 979c9e68d9Seric e->e_hopcount, MaxHopCount, e->e_from.q_paddr, 989c9e68d9Seric e->e_sendqueue->q_paddr); 999c9e68d9Seric return; 1009c9e68d9Seric } 1019c9e68d9Seric 102b8004690Seric /* 103b8004690Seric ** Do sender deletion. 104b8004690Seric ** 105b8004690Seric ** If the sender has the QQUEUEUP flag set, skip this. 106b8004690Seric ** This can happen if the name server is hosed when you 107b8004690Seric ** are trying to send mail. The result is that the sender 108b8004690Seric ** is instantiated in the queue as a recipient. 109b8004690Seric */ 110b8004690Seric 111e76a6a8fSeric if (!bitset(EF_METOO, e->e_flags) && 112e76a6a8fSeric !bitset(QQUEUEUP, e->e_from.q_flags)) 1139c9e68d9Seric { 1149c9e68d9Seric if (tTd(13, 5)) 1159c9e68d9Seric { 1169c9e68d9Seric printf("sendall: QDONTSEND "); 1179c9e68d9Seric printaddr(&e->e_from, FALSE); 1189c9e68d9Seric } 1199c9e68d9Seric e->e_from.q_flags |= QDONTSEND; 1209c9e68d9Seric (void) recipient(&e->e_from, &e->e_sendqueue, e); 1219c9e68d9Seric } 1229c9e68d9Seric 123ce5531bdSeric /* 124ce5531bdSeric ** Handle alias owners. 125ce5531bdSeric ** 126ce5531bdSeric ** We scan up the q_alias chain looking for owners. 127ce5531bdSeric ** We discard owners that are the same as the return path. 128ce5531bdSeric */ 129ce5531bdSeric 130ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 131ce5531bdSeric { 132ce5531bdSeric register struct address *a; 133ce5531bdSeric 134ce5531bdSeric for (a = q; a != NULL && a->q_owner == NULL; a = a->q_alias) 135ce5531bdSeric continue; 136ce5531bdSeric if (a != NULL) 137ce5531bdSeric q->q_owner = a->q_owner; 138ce5531bdSeric 139ce5531bdSeric if (q->q_owner != NULL && 140ce5531bdSeric !bitset(QDONTSEND, q->q_flags) && 141ce5531bdSeric strcmp(q->q_owner, e->e_from.q_paddr) == 0) 142ce5531bdSeric q->q_owner = NULL; 143ce5531bdSeric } 144ce5531bdSeric 145ce5531bdSeric owner = ""; 146ce5531bdSeric otherowners = 1; 147ce5531bdSeric while (owner != NULL && otherowners > 0) 148ce5531bdSeric { 149ce5531bdSeric owner = NULL; 150ce5531bdSeric otherowners = 0; 151ce5531bdSeric 152ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 153ce5531bdSeric { 154ce5531bdSeric if (bitset(QDONTSEND, q->q_flags)) 155ce5531bdSeric continue; 156ce5531bdSeric 157ce5531bdSeric if (q->q_owner != NULL) 158ce5531bdSeric { 159ce5531bdSeric if (owner == NULL) 160ce5531bdSeric owner = q->q_owner; 161ce5531bdSeric else if (owner != q->q_owner) 162ce5531bdSeric { 163ce5531bdSeric if (strcmp(owner, q->q_owner) == 0) 164ce5531bdSeric { 165ce5531bdSeric /* make future comparisons cheap */ 166ce5531bdSeric q->q_owner = owner; 167ce5531bdSeric } 168ce5531bdSeric else 169ce5531bdSeric { 170ce5531bdSeric otherowners++; 171ce5531bdSeric } 172ce5531bdSeric owner = q->q_owner; 173ce5531bdSeric } 174ce5531bdSeric } 175ce5531bdSeric else 176ce5531bdSeric { 177ce5531bdSeric otherowners++; 178ce5531bdSeric } 179ce5531bdSeric } 180ce5531bdSeric 181ce5531bdSeric if (owner != NULL && otherowners > 0) 182ce5531bdSeric { 183ce5531bdSeric extern HDR *copyheader(); 184ce5531bdSeric extern ADDRESS *copyqueue(); 185ce5531bdSeric 186ce5531bdSeric /* 187ce5531bdSeric ** Split this envelope into two. 188ce5531bdSeric */ 189ce5531bdSeric 190ce5531bdSeric ee = (ENVELOPE *) xalloc(sizeof(ENVELOPE)); 191ce5531bdSeric *ee = *e; 192ce5531bdSeric ee->e_id = NULL; 193ce5531bdSeric (void) queuename(ee, '\0'); 194ce5531bdSeric 195ce5531bdSeric if (tTd(13, 1)) 196ce5531bdSeric printf("sendall: split %s into %s\n", 197ce5531bdSeric e->e_id, ee->e_id); 198ce5531bdSeric 199ce5531bdSeric ee->e_header = copyheader(e->e_header); 200ce5531bdSeric ee->e_sendqueue = copyqueue(e->e_sendqueue); 201ce5531bdSeric ee->e_errorqueue = copyqueue(e->e_errorqueue); 202ce5531bdSeric ee->e_flags = e->e_flags & ~(EF_INQUEUE|EF_CLRQUEUE|EF_FATALERRS); 203ce5531bdSeric setsender(owner, ee, NULL, TRUE); 204ce5531bdSeric if (tTd(13, 5)) 205ce5531bdSeric { 206ce5531bdSeric printf("sendall(split): QDONTSEND "); 207ce5531bdSeric printaddr(&ee->e_from, FALSE); 208ce5531bdSeric } 209ce5531bdSeric ee->e_from.q_flags |= QDONTSEND; 210ce5531bdSeric ee->e_dfp = NULL; 211ce5531bdSeric ee->e_xfp = NULL; 212ce5531bdSeric ee->e_lockfp = NULL; 213ce5531bdSeric ee->e_df = NULL; 214ce5531bdSeric ee->e_errormode = EM_MAIL; 215ce5531bdSeric ee->e_sibling = splitenv; 216ce5531bdSeric splitenv = ee; 217ce5531bdSeric 218ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 219ce5531bdSeric if (q->q_owner == owner) 220ce5531bdSeric q->q_flags |= QDONTSEND; 221ce5531bdSeric for (q = ee->e_sendqueue; q != NULL; q = q->q_next) 222ce5531bdSeric if (q->q_owner != owner) 223ce5531bdSeric q->q_flags |= QDONTSEND; 224ce5531bdSeric 225ce5531bdSeric if (e->e_df != NULL && mode != SM_VERIFY) 226ce5531bdSeric { 227ce5531bdSeric ee->e_dfp = NULL; 228da662164Seric ee->e_df = queuename(ee, 'd'); 229da662164Seric ee->e_df = newstr(ee->e_df); 230ce5531bdSeric if (link(e->e_df, ee->e_df) < 0) 231ce5531bdSeric { 232ce5531bdSeric syserr("sendall: link(%s, %s)", 233ce5531bdSeric e->e_df, ee->e_df); 234ce5531bdSeric } 235ce5531bdSeric } 236ce5531bdSeric 237ce5531bdSeric if (mode != SM_VERIFY) 238ce5531bdSeric openxscript(ee); 239ce5531bdSeric #ifdef LOG 240ce5531bdSeric if (LogLevel > 4) 241ce5531bdSeric syslog(LOG_INFO, "%s: clone %s", 242ce5531bdSeric ee->e_id, e->e_id); 243ce5531bdSeric #endif 244ce5531bdSeric } 245ce5531bdSeric } 246ce5531bdSeric 247ce5531bdSeric if (owner != NULL) 248ce5531bdSeric { 249ce5531bdSeric setsender(owner, e, NULL, TRUE); 250ce5531bdSeric if (tTd(13, 5)) 251ce5531bdSeric { 252ce5531bdSeric printf("sendall(owner): QDONTSEND "); 253ce5531bdSeric printaddr(&e->e_from, FALSE); 254ce5531bdSeric } 255ce5531bdSeric e->e_from.q_flags |= QDONTSEND; 256ce5531bdSeric e->e_errormode = EM_MAIL; 257ce5531bdSeric } 258ce5531bdSeric 259c1ac89b1Seric # ifdef QUEUE 260c1ac89b1Seric if ((mode == SM_QUEUE || mode == SM_FORK || 261c1ac89b1Seric (mode != SM_VERIFY && SuperSafe)) && 262c1ac89b1Seric !bitset(EF_INQUEUE, e->e_flags)) 263c1ac89b1Seric { 264c1ac89b1Seric /* be sure everything is instantiated in the queue */ 2656103d9b4Seric queueup(e, TRUE, announcequeueup); 266ce5531bdSeric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 2676103d9b4Seric queueup(ee, TRUE, announcequeueup); 268c1ac89b1Seric } 269c1ac89b1Seric #endif /* QUEUE */ 270c1ac89b1Seric 271ce5531bdSeric if (splitenv != NULL) 272ce5531bdSeric { 273ce5531bdSeric if (tTd(13, 1)) 274ce5531bdSeric { 275ce5531bdSeric printf("\nsendall: Split queue; remaining queue:\n"); 276ce5531bdSeric printaddr(e->e_sendqueue, TRUE); 277ce5531bdSeric } 278ce5531bdSeric 279ce5531bdSeric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 280ce5531bdSeric { 281ce5531bdSeric CurEnv = ee; 282ce5531bdSeric sendenvelope(ee, mode); 283ce5531bdSeric } 284ce5531bdSeric 285ce5531bdSeric CurEnv = e; 286ce5531bdSeric } 287ce5531bdSeric sendenvelope(e, mode); 288ce5531bdSeric 289ce5531bdSeric for (; splitenv != NULL; splitenv = splitenv->e_sibling) 290ce5531bdSeric dropenvelope(splitenv); 291ce5531bdSeric } 292ce5531bdSeric 293ce5531bdSeric sendenvelope(e, mode) 294ce5531bdSeric register ENVELOPE *e; 295ce5531bdSeric char mode; 296ce5531bdSeric { 297ce5531bdSeric bool oldverbose; 298ce5531bdSeric int pid; 299ce5531bdSeric register ADDRESS *q; 3002b9178d3Seric #ifndef HASFLOCK 301ce5531bdSeric struct flock lfd; 302ce5531bdSeric #endif 303ce5531bdSeric 3047880f3e4Seric /* 3057880f3e4Seric ** If we have had global, fatal errors, don't bother sending 3067880f3e4Seric ** the message at all if we are in SMTP mode. Local errors 3077880f3e4Seric ** (e.g., a single address failing) will still cause the other 3087880f3e4Seric ** addresses to be sent. 3097880f3e4Seric */ 3107880f3e4Seric 3117880f3e4Seric if (bitset(EF_FATALERRS, e->e_flags) && OpMode == MD_SMTP) 3127880f3e4Seric { 3137880f3e4Seric e->e_flags |= EF_CLRQUEUE; 3147880f3e4Seric return; 3157880f3e4Seric } 3167880f3e4Seric 317ce5531bdSeric oldverbose = Verbose; 318c1ac89b1Seric switch (mode) 319c1ac89b1Seric { 320c1ac89b1Seric case SM_VERIFY: 321c1ac89b1Seric Verbose = TRUE; 322c1ac89b1Seric break; 323c1ac89b1Seric 324c1ac89b1Seric case SM_QUEUE: 325c1ac89b1Seric queueonly: 326c1ac89b1Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 327c1ac89b1Seric return; 328c1ac89b1Seric 329c1ac89b1Seric case SM_FORK: 330c1ac89b1Seric if (e->e_xfp != NULL) 331c1ac89b1Seric (void) fflush(e->e_xfp); 332c1ac89b1Seric 3332b9178d3Seric # ifndef HASFLOCK 334c1ac89b1Seric /* 3352b9178d3Seric ** Since fcntl lockin has the interesting semantic that 3362b9178d3Seric ** the lock is lost when we fork, we have to risk losing 337c1ac89b1Seric ** the lock here by closing before the fork, and then 338c1ac89b1Seric ** trying to get it back in the child. 339c1ac89b1Seric */ 340c1ac89b1Seric 341c1ac89b1Seric if (e->e_lockfp != NULL) 342c1ac89b1Seric { 343c1ac89b1Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 344c1ac89b1Seric e->e_lockfp = NULL; 345c1ac89b1Seric } 3462b9178d3Seric # endif /* HASFLOCK */ 347c1ac89b1Seric 348c1ac89b1Seric pid = fork(); 349c1ac89b1Seric if (pid < 0) 350c1ac89b1Seric { 351c1ac89b1Seric goto queueonly; 352c1ac89b1Seric } 353c1ac89b1Seric else if (pid > 0) 354c1ac89b1Seric { 355c1ac89b1Seric /* be sure we leave the temp files to our child */ 356c1ac89b1Seric e->e_id = e->e_df = NULL; 3572b9178d3Seric # ifdef HASFLOCK 358c1ac89b1Seric if (e->e_lockfp != NULL) 359c1ac89b1Seric { 360c1ac89b1Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 361c1ac89b1Seric e->e_lockfp = NULL; 362c1ac89b1Seric } 363c1ac89b1Seric # endif 364c1ac89b1Seric 365c1ac89b1Seric /* close any random open files in the envelope */ 366c1ac89b1Seric if (e->e_dfp != NULL) 367c1ac89b1Seric { 368c1ac89b1Seric (void) xfclose(e->e_dfp, "sendenvelope", "dfp"); 369c1ac89b1Seric e->e_dfp = NULL; 370c1ac89b1Seric } 371c1ac89b1Seric if (e->e_xfp != NULL) 372c1ac89b1Seric { 373c1ac89b1Seric (void) xfclose(e->e_xfp, "sendenvelope", "xfp"); 374c1ac89b1Seric e->e_xfp = NULL; 375c1ac89b1Seric } 376c1ac89b1Seric return; 377c1ac89b1Seric } 378c1ac89b1Seric 379c1ac89b1Seric /* double fork to avoid zombies */ 380c1ac89b1Seric if (fork() > 0) 381c1ac89b1Seric exit(EX_OK); 382c1ac89b1Seric 383c1ac89b1Seric /* be sure we are immune from the terminal */ 3847880f3e4Seric disconnect(1, e); 385c1ac89b1Seric 3862b9178d3Seric # ifndef HASFLOCK 387c1ac89b1Seric /* 388c1ac89b1Seric ** Now try to get our lock back. 389c1ac89b1Seric */ 390c1ac89b1Seric 391c1ac89b1Seric lfd.l_type = F_WRLCK; 392c1ac89b1Seric lfd.l_whence = lfd.l_start = lfd.l_len = 0; 393c1ac89b1Seric e->e_lockfp = fopen(queuename(e, 'q'), "r+"); 394c1ac89b1Seric if (e->e_lockfp == NULL || 395c1ac89b1Seric fcntl(fileno(e->e_lockfp), F_SETLK, &lfd) < 0) 396c1ac89b1Seric { 397c1ac89b1Seric /* oops.... lost it */ 398c1ac89b1Seric if (tTd(13, 1)) 399c1ac89b1Seric printf("sendenvelope: %s lost lock: lockfp=%x, %s\n", 400c1ac89b1Seric e->e_id, e->e_lockfp, errstring(errno)); 401c1ac89b1Seric 402c1ac89b1Seric # ifdef LOG 403c1ac89b1Seric if (LogLevel > 29) 404c1ac89b1Seric syslog(LOG_NOTICE, "%s: lost lock: %m", 405c1ac89b1Seric e->e_id); 406c1ac89b1Seric # endif /* LOG */ 407c1ac89b1Seric exit(EX_OK); 408c1ac89b1Seric } 4092b9178d3Seric # endif /* HASFLOCK */ 410c1ac89b1Seric 411c1ac89b1Seric /* 412c1ac89b1Seric ** Close any cached connections. 413c1ac89b1Seric ** 414c1ac89b1Seric ** We don't send the QUIT protocol because the parent 415c1ac89b1Seric ** still knows about the connection. 416c1ac89b1Seric ** 417c1ac89b1Seric ** This should only happen when delivering an error 418c1ac89b1Seric ** message. 419c1ac89b1Seric */ 420c1ac89b1Seric 421c1ac89b1Seric mci_flush(FALSE, NULL); 422c1ac89b1Seric 423c1ac89b1Seric break; 424c1ac89b1Seric } 425c1ac89b1Seric 426c1ac89b1Seric /* 4279c9e68d9Seric ** Run through the list and send everything. 4285288e21aSeric ** 4295288e21aSeric ** Set EF_GLOBALERRS so that error messages during delivery 4305288e21aSeric ** result in returned mail. 4319c9e68d9Seric */ 4329c9e68d9Seric 4339c9e68d9Seric e->e_nsent = 0; 4345288e21aSeric e->e_flags |= EF_GLOBALERRS; 4359c9e68d9Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 4369c9e68d9Seric { 4379c9e68d9Seric if (mode == SM_VERIFY) 4389c9e68d9Seric { 4399c9e68d9Seric e->e_to = q->q_paddr; 4409c9e68d9Seric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4418dfca105Seric { 4428dfca105Seric message("deliverable: mailer %s, host %s, user %s", 4438dfca105Seric q->q_mailer->m_name, 4448dfca105Seric q->q_host, 4458dfca105Seric q->q_user); 4468dfca105Seric } 4479c9e68d9Seric } 4489c9e68d9Seric else if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4499c9e68d9Seric { 4509c9e68d9Seric # ifdef QUEUE 4519c9e68d9Seric /* 4529c9e68d9Seric ** Checkpoint the send list every few addresses 4539c9e68d9Seric */ 4549c9e68d9Seric 4559c9e68d9Seric if (e->e_nsent >= CheckpointInterval) 4569c9e68d9Seric { 4579c9e68d9Seric queueup(e, TRUE, FALSE); 4589c9e68d9Seric e->e_nsent = 0; 4599c9e68d9Seric } 4609c9e68d9Seric # endif /* QUEUE */ 4619c9e68d9Seric (void) deliver(e, q); 4629c9e68d9Seric } 4639c9e68d9Seric } 4649c9e68d9Seric Verbose = oldverbose; 4659c9e68d9Seric 4669c9e68d9Seric if (mode == SM_FORK) 4679c9e68d9Seric finis(); 4689c9e68d9Seric } 4699c9e68d9Seric /* 4709c9e68d9Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 4719c9e68d9Seric ** 4729c9e68d9Seric ** This MUST be a macro, since after a vfork we are running 4739c9e68d9Seric ** two processes on the same stack!!! 4749c9e68d9Seric ** 4759c9e68d9Seric ** Parameters: 4769c9e68d9Seric ** none. 4779c9e68d9Seric ** 4789c9e68d9Seric ** Returns: 4799c9e68d9Seric ** From a macro??? You've got to be kidding! 4809c9e68d9Seric ** 4819c9e68d9Seric ** Side Effects: 4829c9e68d9Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 4839c9e68d9Seric ** pid of child in parent, zero in child. 4849c9e68d9Seric ** -1 on unrecoverable error. 4859c9e68d9Seric ** 4869c9e68d9Seric ** Notes: 4879c9e68d9Seric ** I'm awfully sorry this looks so awful. That's 4889c9e68d9Seric ** vfork for you..... 4899c9e68d9Seric */ 4909c9e68d9Seric 4919c9e68d9Seric # define NFORKTRIES 5 4929c9e68d9Seric 4939c9e68d9Seric # ifndef FORK 4949c9e68d9Seric # define FORK fork 4959c9e68d9Seric # endif 4969c9e68d9Seric 4979c9e68d9Seric # define DOFORK(fORKfN) \ 4989c9e68d9Seric {\ 4999c9e68d9Seric register int i;\ 5009c9e68d9Seric \ 5019c9e68d9Seric for (i = NFORKTRIES; --i >= 0; )\ 5029c9e68d9Seric {\ 5039c9e68d9Seric pid = fORKfN();\ 5049c9e68d9Seric if (pid >= 0)\ 5059c9e68d9Seric break;\ 5069c9e68d9Seric if (i > 0)\ 5079c9e68d9Seric sleep((unsigned) NFORKTRIES - i);\ 5089c9e68d9Seric }\ 5099c9e68d9Seric } 5109c9e68d9Seric /* 5119c9e68d9Seric ** DOFORK -- simple fork interface to DOFORK. 5129c9e68d9Seric ** 5139c9e68d9Seric ** Parameters: 5149c9e68d9Seric ** none. 5159c9e68d9Seric ** 5169c9e68d9Seric ** Returns: 5179c9e68d9Seric ** pid of child in parent. 5189c9e68d9Seric ** zero in child. 5199c9e68d9Seric ** -1 on error. 5209c9e68d9Seric ** 5219c9e68d9Seric ** Side Effects: 5229c9e68d9Seric ** returns twice, once in parent and once in child. 5239c9e68d9Seric */ 5249c9e68d9Seric 5259c9e68d9Seric dofork() 5269c9e68d9Seric { 5279c9e68d9Seric register int pid; 5289c9e68d9Seric 5299c9e68d9Seric DOFORK(fork); 5309c9e68d9Seric return (pid); 5319c9e68d9Seric } 5329c9e68d9Seric /* 53313bbc08cSeric ** DELIVER -- Deliver a message to a list of addresses. 53413bbc08cSeric ** 53513bbc08cSeric ** This routine delivers to everyone on the same host as the 53613bbc08cSeric ** user on the head of the list. It is clever about mailers 53713bbc08cSeric ** that don't handle multiple users. It is NOT guaranteed 53813bbc08cSeric ** that it will deliver to all these addresses however -- so 53913bbc08cSeric ** deliver should be called once for each address on the 54013bbc08cSeric ** list. 54125a99e2eSeric ** 54225a99e2eSeric ** Parameters: 543588cad61Seric ** e -- the envelope to deliver. 544c77d1c25Seric ** firstto -- head of the address list to deliver to. 54525a99e2eSeric ** 54625a99e2eSeric ** Returns: 54725a99e2eSeric ** zero -- successfully delivered. 54825a99e2eSeric ** else -- some failure, see ExitStat for more info. 54925a99e2eSeric ** 55025a99e2eSeric ** Side Effects: 55125a99e2eSeric ** The standard input is passed off to someone. 55225a99e2eSeric */ 55325a99e2eSeric 554588cad61Seric deliver(e, firstto) 555588cad61Seric register ENVELOPE *e; 556c77d1c25Seric ADDRESS *firstto; 55725a99e2eSeric { 55878442df3Seric char *host; /* host being sent to */ 55978442df3Seric char *user; /* user being sent to */ 56025a99e2eSeric char **pvp; 5615dfc646bSeric register char **mvp; 56225a99e2eSeric register char *p; 563588cad61Seric register MAILER *m; /* mailer for this recipient */ 5646259796dSeric ADDRESS *ctladdr; 565b31e7f2bSeric register MCI *mci; 566c77d1c25Seric register ADDRESS *to = firstto; 567c579ef51Seric bool clever = FALSE; /* running user smtp to this mailer */ 568772e6e50Seric ADDRESS *tochain = NULL; /* chain of users in this mailer call */ 569911693bfSbostic int rcode; /* response code */ 570e103b48fSeric char *firstsig; /* signature of firstto */ 5719c9e68d9Seric int pid; 5729c9e68d9Seric char *curhost; 5739c9e68d9Seric int mpvect[2]; 5749c9e68d9Seric int rpvect[2]; 575ee6bf8dfSeric char *pv[MAXPV+1]; 576579ef0ddSeric char tobuf[TOBUFSIZE]; /* text line of to people */ 577ee6bf8dfSeric char buf[MAXNAME]; 578c23ed322Seric char rpathbuf[MAXNAME]; /* translated return path */ 579fabb3bd4Seric extern int checkcompat(); 5809c9e68d9Seric extern FILE *fdopen(); 58125a99e2eSeric 58235490626Seric errno = 0; 583ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags)) 5845dfc646bSeric return (0); 58525a99e2eSeric 586134746fbSeric #ifdef NAMED_BIND 587912a731aSbostic /* unless interactive, try twice, over a minute */ 588912a731aSbostic if (OpMode == MD_DAEMON || OpMode == MD_SMTP) { 589912a731aSbostic _res.retrans = 30; 590912a731aSbostic _res.retry = 2; 591912a731aSbostic } 592d4bd8f0eSbostic #endif 593912a731aSbostic 59451552439Seric m = to->q_mailer; 59551552439Seric host = to->q_host; 596c9be6216Seric CurEnv = e; /* just in case */ 5974384d521Seric e->e_statmsg = NULL; 59851552439Seric 5996ef48975Seric if (tTd(10, 1)) 6005dfc646bSeric printf("\n--deliver, mailer=%d, host=`%s', first user=`%s'\n", 60151552439Seric m->m_mno, host, to->q_user); 602f3dbc832Seric 603f3dbc832Seric /* 604f3dbc832Seric ** If this mailer is expensive, and if we don't want to make 605f3dbc832Seric ** connections now, just mark these addresses and return. 606f3dbc832Seric ** This is useful if we want to batch connections to 607f3dbc832Seric ** reduce load. This will cause the messages to be 608f3dbc832Seric ** queued up, and a daemon will come along to send the 609f3dbc832Seric ** messages later. 610f3dbc832Seric ** This should be on a per-mailer basis. 611f3dbc832Seric */ 612f3dbc832Seric 61319c47125Seric if (NoConnect && !bitset(EF_QUEUERUN, e->e_flags) && 61419c47125Seric bitnset(M_EXPENSIVE, m->m_flags) && !Verbose) 615f3dbc832Seric { 616f3dbc832Seric for (; to != NULL; to = to->q_next) 617f4560e80Seric { 618ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 619c6e18ac5Seric to->q_mailer != m) 620f4560e80Seric continue; 621268a25e1Seric to->q_flags |= QQUEUEUP; 622588cad61Seric e->e_to = to->q_paddr; 62308b25121Seric message("queued"); 6242f624c86Seric if (LogLevel > 8) 62581161401Seric logdelivery(m, NULL, "queued", e); 626f4560e80Seric } 627588cad61Seric e->e_to = NULL; 628f3dbc832Seric return (0); 629f3dbc832Seric } 630f3dbc832Seric 63125a99e2eSeric /* 6325dfc646bSeric ** Do initial argv setup. 6335dfc646bSeric ** Insert the mailer name. Notice that $x expansion is 6345dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 6355dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 6365dfc646bSeric ** code does not check for 'pv' overflow; this places a 6375dfc646bSeric ** manifest lower limit of 4 for MAXPV. 6383bea8136Seric ** The from address rewrite is expected to make 6393bea8136Seric ** the address relative to the other end. 6405dfc646bSeric */ 6415dfc646bSeric 64278442df3Seric /* rewrite from address, using rewriting rules */ 643efe54562Seric rcode = EX_OK; 644efe54562Seric (void) strcpy(rpathbuf, remotename(e->e_from.q_paddr, m, 645efe54562Seric RF_SENDERADDR|RF_CANONICAL, 646efe54562Seric &rcode, e)); 647ee4b0922Seric define('g', rpathbuf, e); /* translated return path */ 648588cad61Seric define('h', host, e); /* to host */ 6495dfc646bSeric Errors = 0; 6505dfc646bSeric pvp = pv; 6515dfc646bSeric *pvp++ = m->m_argv[0]; 6525dfc646bSeric 6535dfc646bSeric /* insert -f or -r flag as appropriate */ 65457fc6f17Seric if (FromFlag && (bitnset(M_FOPT, m->m_flags) || bitnset(M_ROPT, m->m_flags))) 6555dfc646bSeric { 65657fc6f17Seric if (bitnset(M_FOPT, m->m_flags)) 6575dfc646bSeric *pvp++ = "-f"; 6585dfc646bSeric else 6595dfc646bSeric *pvp++ = "-r"; 660c23ed322Seric *pvp++ = newstr(rpathbuf); 6615dfc646bSeric } 6625dfc646bSeric 6635dfc646bSeric /* 6645dfc646bSeric ** Append the other fixed parts of the argv. These run 6655dfc646bSeric ** up to the first entry containing "$u". There can only 6665dfc646bSeric ** be one of these, and there are only a few more slots 6675dfc646bSeric ** in the pv after it. 6685dfc646bSeric */ 6695dfc646bSeric 6705dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 6715dfc646bSeric { 6722bc47524Seric /* can't use strchr here because of sign extension problems */ 6732bc47524Seric while (*p != '\0') 6742bc47524Seric { 6752bc47524Seric if ((*p++ & 0377) == MACROEXPAND) 6762bc47524Seric { 6772bc47524Seric if (*p == 'u') 6785dfc646bSeric break; 6792bc47524Seric } 6802bc47524Seric } 6812bc47524Seric 6822bc47524Seric if (*p != '\0') 6835dfc646bSeric break; 6845dfc646bSeric 6855dfc646bSeric /* this entry is safe -- go ahead and process it */ 686588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 6875dfc646bSeric *pvp++ = newstr(buf); 6885dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 6895dfc646bSeric { 69008b25121Seric syserr("554 Too many parameters to %s before $u", pv[0]); 6915dfc646bSeric return (-1); 6925dfc646bSeric } 6935dfc646bSeric } 694c579ef51Seric 69533db8731Seric /* 69633db8731Seric ** If we have no substitution for the user name in the argument 69733db8731Seric ** list, we know that we must supply the names otherwise -- and 69833db8731Seric ** SMTP is the answer!! 69933db8731Seric */ 70033db8731Seric 7015dfc646bSeric if (*mvp == NULL) 702c579ef51Seric { 703c579ef51Seric /* running SMTP */ 7042c7e1b8dSeric # ifdef SMTP 705c579ef51Seric clever = TRUE; 706c579ef51Seric *pvp = NULL; 7076c2c3107Seric # else /* SMTP */ 70833db8731Seric /* oops! we don't implement SMTP */ 70908b25121Seric syserr("554 SMTP style mailer"); 7102c7e1b8dSeric return (EX_SOFTWARE); 7116c2c3107Seric # endif /* SMTP */ 712c579ef51Seric } 7135dfc646bSeric 7145dfc646bSeric /* 7155dfc646bSeric ** At this point *mvp points to the argument with $u. We 7165dfc646bSeric ** run through our address list and append all the addresses 7175dfc646bSeric ** we can. If we run out of space, do not fret! We can 7185dfc646bSeric ** always send another copy later. 7195dfc646bSeric */ 7205dfc646bSeric 7215dfc646bSeric tobuf[0] = '\0'; 722588cad61Seric e->e_to = tobuf; 7236259796dSeric ctladdr = NULL; 724e103b48fSeric firstsig = hostsignature(firstto->q_mailer, firstto->q_host, e); 7255dfc646bSeric for (; to != NULL; to = to->q_next) 7265dfc646bSeric { 7275dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 72857fc6f17Seric if (tobuf[0] != '\0' && !bitnset(M_MUSER, m->m_flags)) 7295dfc646bSeric break; 7305dfc646bSeric 7315dfc646bSeric /* if already sent or not for this host, don't send */ 732ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 733e103b48fSeric to->q_mailer != firstto->q_mailer || 734e103b48fSeric strcmp(hostsignature(to->q_mailer, to->q_host, e), firstsig) != 0) 7355dfc646bSeric continue; 7366259796dSeric 7374b22ea87Seric /* avoid overflowing tobuf */ 738aa50a568Sbostic if (sizeof tobuf < (strlen(to->q_paddr) + strlen(tobuf) + 2)) 7394b22ea87Seric break; 7404b22ea87Seric 7416ef48975Seric if (tTd(10, 1)) 742772e6e50Seric { 743772e6e50Seric printf("\nsend to "); 744772e6e50Seric printaddr(to, FALSE); 745772e6e50Seric } 746772e6e50Seric 7476259796dSeric /* compute effective uid/gid when sending */ 7487da1035fSeric if (to->q_mailer == ProgMailer) 7496259796dSeric ctladdr = getctladdr(to); 7506259796dSeric 7515dfc646bSeric user = to->q_user; 752588cad61Seric e->e_to = to->q_paddr; 75375f1ade9Seric if (tTd(10, 5)) 75475f1ade9Seric { 75575f1ade9Seric printf("deliver: QDONTSEND "); 75675f1ade9Seric printaddr(to, FALSE); 75775f1ade9Seric } 758ee4b0922Seric to->q_flags |= QDONTSEND; 7595dfc646bSeric 7605dfc646bSeric /* 7615dfc646bSeric ** Check to see that these people are allowed to 7625dfc646bSeric ** talk to each other. 7632a6e0786Seric */ 7642a6e0786Seric 76569582d2fSeric if (m->m_maxsize != 0 && e->e_msgsize > m->m_maxsize) 76669582d2fSeric { 76769582d2fSeric NoReturn = TRUE; 76808b25121Seric usrerr("552 Message is too large; %ld bytes max", m->m_maxsize); 76981161401Seric giveresponse(EX_UNAVAILABLE, m, NULL, e); 77069582d2fSeric continue; 77169582d2fSeric } 772fabb3bd4Seric rcode = checkcompat(to, e); 7731793c9c5Seric if (rcode != EX_OK) 7745dfc646bSeric { 7751000c37aSeric markfailure(e, to, rcode); 77681161401Seric giveresponse(rcode, m, NULL, e); 7775dfc646bSeric continue; 7785dfc646bSeric } 7792a6e0786Seric 7802a6e0786Seric /* 7819ec9501bSeric ** Strip quote bits from names if the mailer is dumb 7829ec9501bSeric ** about them. 78325a99e2eSeric */ 78425a99e2eSeric 78557fc6f17Seric if (bitnset(M_STRIPQ, m->m_flags)) 78625a99e2eSeric { 7871d8f1806Seric stripquotes(user); 7881d8f1806Seric stripquotes(host); 78925a99e2eSeric } 79025a99e2eSeric 791cdb828c5Seric /* hack attack -- delivermail compatibility */ 792cdb828c5Seric if (m == ProgMailer && *user == '|') 793cdb828c5Seric user++; 794cdb828c5Seric 79525a99e2eSeric /* 7963efaed6eSeric ** If an error message has already been given, don't 7973efaed6eSeric ** bother to send to this address. 7983efaed6eSeric ** 7993efaed6eSeric ** >>>>>>>>>> This clause assumes that the local mailer 8003efaed6eSeric ** >> NOTE >> cannot do any further aliasing; that 8013efaed6eSeric ** >>>>>>>>>> function is subsumed by sendmail. 8023efaed6eSeric */ 8033efaed6eSeric 8046cae517dSeric if (bitset(QBADADDR|QQUEUEUP, to->q_flags)) 8053efaed6eSeric continue; 8063efaed6eSeric 807f2fec898Seric /* save statistics.... */ 808588cad61Seric markstats(e, to); 809f2fec898Seric 8103efaed6eSeric /* 81125a99e2eSeric ** See if this user name is "special". 81225a99e2eSeric ** If the user name has a slash in it, assume that this 81351552439Seric ** is a file -- send it off without further ado. Note 81451552439Seric ** that this type of addresses is not processed along 81551552439Seric ** with the others, so we fudge on the To person. 81625a99e2eSeric */ 81725a99e2eSeric 8182c017f8dSeric if (m == FileMailer) 81925a99e2eSeric { 820b31e7f2bSeric rcode = mailfile(user, getctladdr(to), e); 82181161401Seric giveresponse(rcode, m, NULL, e); 822dde5acadSeric if (rcode == EX_OK) 823dde5acadSeric to->q_flags |= QSENT; 8245dfc646bSeric continue; 82525a99e2eSeric } 82625a99e2eSeric 82713bbc08cSeric /* 82813bbc08cSeric ** Address is verified -- add this user to mailer 82913bbc08cSeric ** argv, and add it to the print list of recipients. 83013bbc08cSeric */ 83113bbc08cSeric 832508daeccSeric /* link together the chain of recipients */ 833508daeccSeric to->q_tchain = tochain; 834508daeccSeric tochain = to; 835508daeccSeric 8365dfc646bSeric /* create list of users for error messages */ 837db8841e9Seric (void) strcat(tobuf, ","); 838db8841e9Seric (void) strcat(tobuf, to->q_paddr); 839588cad61Seric define('u', user, e); /* to user */ 840588cad61Seric define('z', to->q_home, e); /* user's home */ 8415dfc646bSeric 842c579ef51Seric /* 843508daeccSeric ** Expand out this user into argument list. 844c579ef51Seric */ 845c579ef51Seric 846508daeccSeric if (!clever) 847c579ef51Seric { 848588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8495dfc646bSeric *pvp++ = newstr(buf); 8505dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 8515dfc646bSeric { 8525dfc646bSeric /* allow some space for trailing parms */ 8535dfc646bSeric break; 8545dfc646bSeric } 8555dfc646bSeric } 856c579ef51Seric } 8575dfc646bSeric 858145b49b1Seric /* see if any addresses still exist */ 859145b49b1Seric if (tobuf[0] == '\0') 860c579ef51Seric { 861588cad61Seric define('g', (char *) NULL, e); 862145b49b1Seric return (0); 863c579ef51Seric } 864145b49b1Seric 8655dfc646bSeric /* print out messages as full list */ 86663780dbdSeric e->e_to = tobuf + 1; 8675dfc646bSeric 8685dfc646bSeric /* 8695dfc646bSeric ** Fill out any parameters after the $u parameter. 8705dfc646bSeric */ 8715dfc646bSeric 872c579ef51Seric while (!clever && *++mvp != NULL) 8735dfc646bSeric { 874588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8755dfc646bSeric *pvp++ = newstr(buf); 8765dfc646bSeric if (pvp >= &pv[MAXPV]) 87708b25121Seric syserr("554 deliver: pv overflow after $u for %s", pv[0]); 8785dfc646bSeric } 8795dfc646bSeric *pvp++ = NULL; 8805dfc646bSeric 88125a99e2eSeric /* 88225a99e2eSeric ** Call the mailer. 8836328bdf7Seric ** The argument vector gets built, pipes 88425a99e2eSeric ** are created as necessary, and we fork & exec as 8856328bdf7Seric ** appropriate. 886c579ef51Seric ** If we are running SMTP, we just need to clean up. 88725a99e2eSeric */ 88825a99e2eSeric 8897ee87e5fSeric if (ctladdr == NULL && m != ProgMailer) 89086b26461Seric ctladdr = &e->e_from; 891134746fbSeric #ifdef NAMED_BIND 8922bcc6d2dSeric if (ConfigLevel < 2) 893912a731aSbostic _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 894134746fbSeric #endif 8959c9e68d9Seric 8969c9e68d9Seric if (tTd(11, 1)) 897134746fbSeric { 8989c9e68d9Seric printf("openmailer:"); 8999c9e68d9Seric printav(pv); 9009c9e68d9Seric } 9019c9e68d9Seric errno = 0; 9029c9e68d9Seric 9039c9e68d9Seric CurHostName = m->m_mailer; 9049c9e68d9Seric 9059c9e68d9Seric /* 9069c9e68d9Seric ** Deal with the special case of mail handled through an IPC 9079c9e68d9Seric ** connection. 9089c9e68d9Seric ** In this case we don't actually fork. We must be 9099c9e68d9Seric ** running SMTP for this to work. We will return a 9109c9e68d9Seric ** zero pid to indicate that we are running IPC. 9119c9e68d9Seric ** We also handle a debug version that just talks to stdin/out. 9129c9e68d9Seric */ 9139c9e68d9Seric 9149c9e68d9Seric curhost = NULL; 9159c9e68d9Seric 9169c9e68d9Seric /* check for Local Person Communication -- not for mortals!!! */ 9179c9e68d9Seric if (strcmp(m->m_mailer, "[LPC]") == 0) 9189c9e68d9Seric { 9199c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 9209c9e68d9Seric bzero((char *) mci, sizeof *mci); 9219c9e68d9Seric mci->mci_in = stdin; 9229c9e68d9Seric mci->mci_out = stdout; 9239c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 9249c9e68d9Seric mci->mci_mailer = m; 9259c9e68d9Seric } 9269c9e68d9Seric else if (strcmp(m->m_mailer, "[IPC]") == 0 || 9279c9e68d9Seric strcmp(m->m_mailer, "[TCP]") == 0) 9289c9e68d9Seric { 9299c9e68d9Seric #ifdef DAEMON 9309c9e68d9Seric register int i; 9319c9e68d9Seric register u_short port; 9329c9e68d9Seric 9339c9e68d9Seric CurHostName = pv[1]; 9349c9e68d9Seric curhost = hostsignature(m, pv[1], e); 9359c9e68d9Seric 9369c9e68d9Seric if (curhost == NULL || curhost[0] == '\0') 9379c9e68d9Seric { 9389c9e68d9Seric syserr("null signature"); 939845e533cSeric rcode = EX_OSERR; 940b31e7f2bSeric goto give_up; 941b31e7f2bSeric } 9429c9e68d9Seric 9439c9e68d9Seric if (!clever) 9449c9e68d9Seric { 9459c9e68d9Seric syserr("554 non-clever IPC"); 9469c9e68d9Seric rcode = EX_OSERR; 9479c9e68d9Seric goto give_up; 9489c9e68d9Seric } 9499c9e68d9Seric if (pv[2] != NULL) 9509c9e68d9Seric port = atoi(pv[2]); 9519c9e68d9Seric else 9529c9e68d9Seric port = 0; 9539c9e68d9Seric tryhost: 9549c9e68d9Seric mci = NULL; 9559c9e68d9Seric while (*curhost != '\0') 9569c9e68d9Seric { 9579c9e68d9Seric register char *p; 9589c9e68d9Seric static char hostbuf[MAXNAME]; 9599c9e68d9Seric 9609c9e68d9Seric mci = NULL; 9619c9e68d9Seric 9629c9e68d9Seric /* pull the next host from the signature */ 9639c9e68d9Seric p = strchr(curhost, ':'); 9649c9e68d9Seric if (p == NULL) 9659c9e68d9Seric p = &curhost[strlen(curhost)]; 9669c9e68d9Seric strncpy(hostbuf, curhost, p - curhost); 9679c9e68d9Seric hostbuf[p - curhost] = '\0'; 9689c9e68d9Seric if (*p != '\0') 9699c9e68d9Seric p++; 9709c9e68d9Seric curhost = p; 9719c9e68d9Seric 9729c9e68d9Seric /* see if we already know that this host is fried */ 9739c9e68d9Seric CurHostName = hostbuf; 9749c9e68d9Seric mci = mci_get(hostbuf, m); 9759c9e68d9Seric if (mci->mci_state != MCIS_CLOSED) 9769c9e68d9Seric { 9779c9e68d9Seric if (tTd(11, 1)) 9789c9e68d9Seric { 9799c9e68d9Seric printf("openmailer: "); 9809c9e68d9Seric mci_dump(mci); 9819c9e68d9Seric } 9829c9e68d9Seric CurHostName = mci->mci_host; 9839c9e68d9Seric break; 9849c9e68d9Seric } 9859c9e68d9Seric mci->mci_mailer = m; 9869c9e68d9Seric if (mci->mci_exitstat != EX_OK) 9879c9e68d9Seric continue; 9889c9e68d9Seric 9899c9e68d9Seric /* try the connection */ 9909c9e68d9Seric setproctitle("%s %s: %s", e->e_id, hostbuf, "user open"); 9919c9e68d9Seric message("Connecting to %s (%s)...", 9929c9e68d9Seric hostbuf, m->m_name); 9939c9e68d9Seric i = makeconnection(hostbuf, port, mci, 9949c9e68d9Seric bitnset(M_SECURE_PORT, m->m_flags)); 9959c9e68d9Seric mci->mci_exitstat = i; 9969c9e68d9Seric mci->mci_errno = errno; 997f170942cSeric #ifdef NAMED_BIND 998f170942cSeric mci->mci_herrno = h_errno; 999f170942cSeric #endif 10009c9e68d9Seric if (i == EX_OK) 10019c9e68d9Seric { 10029c9e68d9Seric mci->mci_state = MCIS_OPENING; 10039c9e68d9Seric mci_cache(mci); 1004f170942cSeric if (TrafficLogFile != NULL) 1005f170942cSeric fprintf(TrafficLogFile, "%05d == CONNECT %s\n", 1006f170942cSeric getpid(), hostbuf); 10079c9e68d9Seric break; 10089c9e68d9Seric } 10099c9e68d9Seric else if (tTd(11, 1)) 10109c9e68d9Seric printf("openmailer: makeconnection => stat=%d, errno=%d\n", 10119c9e68d9Seric i, errno); 10129c9e68d9Seric 10139c9e68d9Seric 10149c9e68d9Seric /* enter status of this host */ 10159c9e68d9Seric setstat(i); 10169c9e68d9Seric } 10179c9e68d9Seric mci->mci_pid = 0; 10189c9e68d9Seric #else /* no DAEMON */ 10199c9e68d9Seric syserr("554 openmailer: no IPC"); 10209c9e68d9Seric if (tTd(11, 1)) 10219c9e68d9Seric printf("openmailer: NULL\n"); 10229c9e68d9Seric return NULL; 10239c9e68d9Seric #endif /* DAEMON */ 10249c9e68d9Seric } 10259c9e68d9Seric else 10269c9e68d9Seric { 1027f170942cSeric #ifdef XDEBUG 1028f170942cSeric char wbuf[MAXLINE]; 10296fe8c3bcSeric 10306fe8c3bcSeric /* make absolutely certain 0, 1, and 2 are in use */ 1031f170942cSeric sprintf(wbuf, "%s... openmailer(%s)", e->e_to, m->m_name); 1032f170942cSeric checkfd012(wbuf); 1033f170942cSeric #endif 10340e3bfef5Seric 1035f170942cSeric if (TrafficLogFile != NULL) 10360e3bfef5Seric { 1037f170942cSeric char **av; 1038f170942cSeric 1039f170942cSeric fprintf(TrafficLogFile, "%05d === EXEC", getpid()); 1040f170942cSeric for (av = pv; *av != NULL; av++) 1041f170942cSeric fprintf(TrafficLogFile, " %s", *av); 1042f170942cSeric fprintf(TrafficLogFile, "\n"); 10436fe8c3bcSeric } 10446fe8c3bcSeric 10459c9e68d9Seric /* create a pipe to shove the mail through */ 10469c9e68d9Seric if (pipe(mpvect) < 0) 10479c9e68d9Seric { 10480e3bfef5Seric syserr("%s... openmailer(%s): pipe (to mailer)", 10490e3bfef5Seric e->e_to, m->m_name); 10509c9e68d9Seric if (tTd(11, 1)) 10519c9e68d9Seric printf("openmailer: NULL\n"); 10529c9e68d9Seric rcode = EX_OSERR; 10539c9e68d9Seric goto give_up; 10549c9e68d9Seric } 10559c9e68d9Seric 10569c9e68d9Seric /* if this mailer speaks smtp, create a return pipe */ 10579c9e68d9Seric if (clever && pipe(rpvect) < 0) 10589c9e68d9Seric { 10590e3bfef5Seric syserr("%s... openmailer(%s): pipe (from mailer)", 10600e3bfef5Seric e->e_to, m->m_name); 10619c9e68d9Seric (void) close(mpvect[0]); 10629c9e68d9Seric (void) close(mpvect[1]); 10639c9e68d9Seric if (tTd(11, 1)) 10649c9e68d9Seric printf("openmailer: NULL\n"); 10659c9e68d9Seric rcode = EX_OSERR; 10669c9e68d9Seric goto give_up; 10679c9e68d9Seric } 10689c9e68d9Seric 10699c9e68d9Seric /* 10709c9e68d9Seric ** Actually fork the mailer process. 10719c9e68d9Seric ** DOFORK is clever about retrying. 10729c9e68d9Seric ** 10739c9e68d9Seric ** Dispose of SIGCHLD signal catchers that may be laying 10749c9e68d9Seric ** around so that endmail will get it. 10759c9e68d9Seric */ 10769c9e68d9Seric 10779c9e68d9Seric if (e->e_xfp != NULL) 10789c9e68d9Seric (void) fflush(e->e_xfp); /* for debugging */ 10799c9e68d9Seric (void) fflush(stdout); 10809c9e68d9Seric # ifdef SIGCHLD 10812b9178d3Seric (void) setsignal(SIGCHLD, SIG_DFL); 10829c9e68d9Seric # endif /* SIGCHLD */ 10839c9e68d9Seric DOFORK(FORK); 10849c9e68d9Seric /* pid is set by DOFORK */ 10859c9e68d9Seric if (pid < 0) 10869c9e68d9Seric { 10879c9e68d9Seric /* failure */ 10880e3bfef5Seric syserr("%s... openmailer(%s): cannot fork", 10890e3bfef5Seric e->e_to, m->m_name); 10909c9e68d9Seric (void) close(mpvect[0]); 10919c9e68d9Seric (void) close(mpvect[1]); 10929c9e68d9Seric if (clever) 10939c9e68d9Seric { 10949c9e68d9Seric (void) close(rpvect[0]); 10959c9e68d9Seric (void) close(rpvect[1]); 10969c9e68d9Seric } 10979c9e68d9Seric if (tTd(11, 1)) 10989c9e68d9Seric printf("openmailer: NULL\n"); 10999c9e68d9Seric rcode = EX_OSERR; 11009c9e68d9Seric goto give_up; 11019c9e68d9Seric } 11029c9e68d9Seric else if (pid == 0) 11039c9e68d9Seric { 11049c9e68d9Seric int i; 11059c9e68d9Seric int saveerrno; 11069c9e68d9Seric char **ep; 11079c9e68d9Seric char *env[MAXUSERENVIRON]; 11089c9e68d9Seric extern char **environ; 11099c9e68d9Seric extern int DtableSize; 11109c9e68d9Seric 11119c9e68d9Seric /* child -- set up input & exec mailer */ 11122b9178d3Seric (void) setsignal(SIGINT, SIG_IGN); 11132b9178d3Seric (void) setsignal(SIGHUP, SIG_IGN); 11142b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 11159c9e68d9Seric 11169c9e68d9Seric /* close any other cached connections */ 11179c9e68d9Seric mci_flush(FALSE, mci); 11189c9e68d9Seric 1119*44f2317fSeric /* reset user and group */ 1120*44f2317fSeric if (!bitnset(M_RESTR, m->m_flags)) 1121*44f2317fSeric { 1122*44f2317fSeric if (ctladdr == NULL || ctladdr->q_uid == 0) 1123*44f2317fSeric { 1124*44f2317fSeric (void) setgid(DefGid); 1125*44f2317fSeric (void) initgroups(DefUser, DefGid); 1126*44f2317fSeric (void) setuid(DefUid); 1127*44f2317fSeric } 1128*44f2317fSeric else 1129*44f2317fSeric { 1130*44f2317fSeric (void) setgid(ctladdr->q_gid); 1131*44f2317fSeric (void) initgroups(ctladdr->q_ruser? 1132*44f2317fSeric ctladdr->q_ruser: ctladdr->q_user, 1133*44f2317fSeric ctladdr->q_gid); 1134*44f2317fSeric (void) setuid(ctladdr->q_uid); 1135*44f2317fSeric } 1136*44f2317fSeric } 1137*44f2317fSeric 1138*44f2317fSeric if (tTd(11, 2)) 1139*44f2317fSeric printf("openmailer: running as r/euid=%d/%d\n", 1140*44f2317fSeric getuid(), geteuid()); 1141*44f2317fSeric 1142b986f6aaSeric /* move into some "safe" directory */ 1143b986f6aaSeric if (m->m_execdir != NULL) 1144b986f6aaSeric { 1145b986f6aaSeric char *p, *q; 1146b986f6aaSeric char buf[MAXLINE]; 1147b986f6aaSeric 1148b986f6aaSeric for (p = m->m_execdir; p != NULL; p = q) 1149b986f6aaSeric { 1150b986f6aaSeric q = strchr(p, ':'); 1151b986f6aaSeric if (q != NULL) 1152b986f6aaSeric *q = '\0'; 1153b986f6aaSeric expand(p, buf, &buf[sizeof buf] - 1, e); 1154b986f6aaSeric if (q != NULL) 1155b986f6aaSeric *q++ = ':'; 1156b986f6aaSeric if (tTd(11, 20)) 1157b986f6aaSeric printf("openmailer: trydir %s\n", 1158b986f6aaSeric buf); 1159b986f6aaSeric if (buf[0] != '\0' && chdir(buf) >= 0) 1160b986f6aaSeric break; 1161b986f6aaSeric } 1162b986f6aaSeric } 1163b986f6aaSeric 11649c9e68d9Seric /* arrange to filter std & diag output of command */ 11659c9e68d9Seric if (clever) 11669c9e68d9Seric { 11679c9e68d9Seric (void) close(rpvect[0]); 11686fe8c3bcSeric if (dup2(rpvect[1], STDOUT_FILENO) < 0) 11696fe8c3bcSeric { 11700e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdout", 11710e3bfef5Seric e->e_to, m->m_name, rpvect[1]); 11726fe8c3bcSeric _exit(EX_OSERR); 11736fe8c3bcSeric } 11749c9e68d9Seric (void) close(rpvect[1]); 11759c9e68d9Seric } 11769c9e68d9Seric else if (OpMode == MD_SMTP || HoldErrs) 11779c9e68d9Seric { 11789c9e68d9Seric /* put mailer output in transcript */ 11796fe8c3bcSeric if (dup2(fileno(e->e_xfp), STDOUT_FILENO) < 0) 11806fe8c3bcSeric { 11810e3bfef5Seric syserr("%s... openmailer(%s): cannot dup xscript %d for stdout", 11820e3bfef5Seric e->e_to, m->m_name, 11836fe8c3bcSeric fileno(e->e_xfp)); 11846fe8c3bcSeric _exit(EX_OSERR); 11859c9e68d9Seric } 11866fe8c3bcSeric } 11876fe8c3bcSeric if (dup2(STDOUT_FILENO, STDERR_FILENO) < 0) 11886fe8c3bcSeric { 11890e3bfef5Seric syserr("%s... openmailer(%s): cannot dup stdout for stderr", 11900e3bfef5Seric e->e_to, m->m_name); 11916fe8c3bcSeric _exit(EX_OSERR); 11926fe8c3bcSeric } 11939c9e68d9Seric 11949c9e68d9Seric /* arrange to get standard input */ 11959c9e68d9Seric (void) close(mpvect[1]); 11969c9e68d9Seric if (dup2(mpvect[0], STDIN_FILENO) < 0) 11979c9e68d9Seric { 11980e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdin", 11990e3bfef5Seric e->e_to, m->m_name, mpvect[0]); 12009c9e68d9Seric _exit(EX_OSERR); 12019c9e68d9Seric } 12029c9e68d9Seric (void) close(mpvect[0]); 12039c9e68d9Seric 12049c9e68d9Seric /* arrange for all the files to be closed */ 12059c9e68d9Seric for (i = 3; i < DtableSize; i++) 12069c9e68d9Seric { 12079c9e68d9Seric register int j; 1208*44f2317fSeric 12099c9e68d9Seric if ((j = fcntl(i, F_GETFD, 0)) != -1) 12109c9e68d9Seric (void) fcntl(i, F_SETFD, j | 1); 12119c9e68d9Seric } 12129c9e68d9Seric 12139c9e68d9Seric /* set up the mailer environment */ 12149c9e68d9Seric i = 0; 12159c9e68d9Seric env[i++] = "AGENT=sendmail"; 12169c9e68d9Seric for (ep = environ; *ep != NULL; ep++) 12179c9e68d9Seric { 12189c9e68d9Seric if (strncmp(*ep, "TZ=", 3) == 0) 12199c9e68d9Seric env[i++] = *ep; 12209c9e68d9Seric } 12219c9e68d9Seric env[i++] = NULL; 12229c9e68d9Seric 12239c9e68d9Seric /* try to execute the mailer */ 12249c9e68d9Seric execve(m->m_mailer, pv, env); 12259c9e68d9Seric saveerrno = errno; 12269c9e68d9Seric syserr("Cannot exec %s", m->m_mailer); 12277c941fd2Seric if (m == LocalMailer || transienterror(saveerrno)) 12287c941fd2Seric _exit(EX_OSERR); 12299c9e68d9Seric _exit(EX_UNAVAILABLE); 12309c9e68d9Seric } 12319c9e68d9Seric 12329c9e68d9Seric /* 12339c9e68d9Seric ** Set up return value. 12349c9e68d9Seric */ 12359c9e68d9Seric 12369c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 12379c9e68d9Seric bzero((char *) mci, sizeof *mci); 12389c9e68d9Seric mci->mci_mailer = m; 12399c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 12409c9e68d9Seric mci->mci_pid = pid; 12419c9e68d9Seric (void) close(mpvect[0]); 12429c9e68d9Seric mci->mci_out = fdopen(mpvect[1], "w"); 12439c9e68d9Seric if (clever) 12449c9e68d9Seric { 12459c9e68d9Seric (void) close(rpvect[1]); 12469c9e68d9Seric mci->mci_in = fdopen(rpvect[0], "r"); 12479c9e68d9Seric } 12489c9e68d9Seric else 12499c9e68d9Seric { 12509c9e68d9Seric mci->mci_flags |= MCIF_TEMP; 12519c9e68d9Seric mci->mci_in = NULL; 12529c9e68d9Seric } 12539c9e68d9Seric } 12549c9e68d9Seric 12559c9e68d9Seric /* 12569c9e68d9Seric ** If we are in SMTP opening state, send initial protocol. 12579c9e68d9Seric */ 12589c9e68d9Seric 12599c9e68d9Seric if (clever && mci->mci_state != MCIS_CLOSED) 12609c9e68d9Seric { 12619c9e68d9Seric smtpinit(m, mci, e); 12629c9e68d9Seric } 12639c9e68d9Seric if (tTd(11, 1)) 12649c9e68d9Seric { 12659c9e68d9Seric printf("openmailer: "); 12669c9e68d9Seric mci_dump(mci); 12679c9e68d9Seric } 12689c9e68d9Seric 12699c9e68d9Seric if (mci->mci_state != MCIS_OPEN) 1270b31e7f2bSeric { 1271b31e7f2bSeric /* couldn't open the mailer */ 1272b31e7f2bSeric rcode = mci->mci_exitstat; 12732a6bc25bSeric errno = mci->mci_errno; 1274f170942cSeric #ifdef NAMED_BIND 1275f170942cSeric h_errno = mci->mci_herrno; 1276f170942cSeric #endif 1277b31e7f2bSeric if (rcode == EX_OK) 1278b31e7f2bSeric { 1279b31e7f2bSeric /* shouldn't happen */ 128008b25121Seric syserr("554 deliver: rcode=%d, mci_state=%d, sig=%s", 12816b0f339dSeric rcode, mci->mci_state, firstsig); 1282b31e7f2bSeric rcode = EX_SOFTWARE; 1283b31e7f2bSeric } 1284e9277e33Seric else if (rcode == EX_TEMPFAIL && *curhost != '\0') 128590891494Seric { 128690891494Seric /* try next MX site */ 128790891494Seric goto tryhost; 128890891494Seric } 1289b31e7f2bSeric } 1290b31e7f2bSeric else if (!clever) 1291b31e7f2bSeric { 1292b31e7f2bSeric /* 1293b31e7f2bSeric ** Format and send message. 1294b31e7f2bSeric */ 129515d084d5Seric 1296b31e7f2bSeric putfromline(mci->mci_out, m, e); 1297b31e7f2bSeric (*e->e_puthdr)(mci->mci_out, m, e); 1298b31e7f2bSeric putline("\n", mci->mci_out, m); 129903c02fdeSeric (*e->e_putbody)(mci->mci_out, m, e, NULL); 1300b31e7f2bSeric 1301b31e7f2bSeric /* get the exit status */ 1302c9be6216Seric rcode = endmailer(mci, e, pv); 1303134746fbSeric } 1304134746fbSeric else 1305b31e7f2bSeric #ifdef SMTP 1306134746fbSeric { 1307b31e7f2bSeric /* 1308b31e7f2bSeric ** Send the MAIL FROM: protocol 1309b31e7f2bSeric */ 131015d084d5Seric 1311b31e7f2bSeric rcode = smtpmailfrom(m, mci, e); 1312b31e7f2bSeric if (rcode == EX_OK) 131375889e88Seric { 1314ded0d3daSkarels register char *t = tobuf; 1315ded0d3daSkarels register int i; 1316ded0d3daSkarels 1317588cad61Seric /* send the recipient list */ 131863780dbdSeric tobuf[0] = '\0'; 131975889e88Seric for (to = tochain; to != NULL; to = to->q_tchain) 132075889e88Seric { 132163780dbdSeric e->e_to = to->q_paddr; 132215d084d5Seric if ((i = smtprcpt(to, m, mci, e)) != EX_OK) 132375889e88Seric { 132483b7ddc9Seric markfailure(e, to, i); 132581161401Seric giveresponse(i, m, mci, e); 132663780dbdSeric } 132775889e88Seric else 132875889e88Seric { 1329911693bfSbostic *t++ = ','; 1330b31e7f2bSeric for (p = to->q_paddr; *p; *t++ = *p++) 1331b31e7f2bSeric continue; 1332588cad61Seric } 1333588cad61Seric } 1334588cad61Seric 133563780dbdSeric /* now send the data */ 133663780dbdSeric if (tobuf[0] == '\0') 1337b31e7f2bSeric { 13389c9e68d9Seric rcode = EX_OK; 133963780dbdSeric e->e_to = NULL; 1340b31e7f2bSeric if (bitset(MCIF_CACHED, mci->mci_flags)) 1341b31e7f2bSeric smtprset(m, mci, e); 1342b31e7f2bSeric } 134375889e88Seric else 134475889e88Seric { 134563780dbdSeric e->e_to = tobuf + 1; 134675889e88Seric rcode = smtpdata(m, mci, e); 134763780dbdSeric } 134863780dbdSeric 134963780dbdSeric /* now close the connection */ 1350b31e7f2bSeric if (!bitset(MCIF_CACHED, mci->mci_flags)) 135115d084d5Seric smtpquit(m, mci, e); 135263780dbdSeric } 13539c9e68d9Seric if (rcode != EX_OK && *curhost != '\0') 13549c9e68d9Seric { 13559c9e68d9Seric /* try next MX site */ 13569c9e68d9Seric goto tryhost; 13579c9e68d9Seric } 1358c579ef51Seric } 1359b31e7f2bSeric #else /* not SMTP */ 1360a05b3449Sbostic { 136108b25121Seric syserr("554 deliver: need SMTP compiled to use clever mailer"); 1362845e533cSeric rcode = EX_CONFIG; 1363b31e7f2bSeric goto give_up; 1364a05b3449Sbostic } 1365b31e7f2bSeric #endif /* SMTP */ 1366134746fbSeric #ifdef NAMED_BIND 13672bcc6d2dSeric if (ConfigLevel < 2) 1368912a731aSbostic _res.options |= RES_DEFNAMES | RES_DNSRCH; /* XXX */ 1369134746fbSeric #endif 13705dfc646bSeric 1371b31e7f2bSeric /* arrange a return receipt if requested */ 13728c13bf07Seric if (e->e_receiptto != NULL && bitnset(M_LOCALMAILER, m->m_flags)) 1373b31e7f2bSeric { 1374b31e7f2bSeric e->e_flags |= EF_SENDRECEIPT; 1375b31e7f2bSeric /* do we want to send back more info? */ 1376b31e7f2bSeric } 1377b31e7f2bSeric 1378c77d1c25Seric /* 137963780dbdSeric ** Do final status disposal. 138063780dbdSeric ** We check for something in tobuf for the SMTP case. 1381c77d1c25Seric ** If we got a temporary failure, arrange to queue the 1382c77d1c25Seric ** addressees. 1383c77d1c25Seric */ 1384c77d1c25Seric 1385b31e7f2bSeric give_up: 138663780dbdSeric if (tobuf[0] != '\0') 138781161401Seric giveresponse(rcode, m, mci, e); 1388772e6e50Seric for (to = tochain; to != NULL; to = to->q_tchain) 1389b31e7f2bSeric { 1390dde5acadSeric if (rcode != EX_OK) 139183b7ddc9Seric markfailure(e, to, rcode); 1392dde5acadSeric else 1393655518ecSeric { 1394dde5acadSeric to->q_flags |= QSENT; 1395655518ecSeric e->e_nsent++; 1396655518ecSeric } 1397b31e7f2bSeric } 1398b31e7f2bSeric 1399b31e7f2bSeric /* 1400b31e7f2bSeric ** Restore state and return. 1401b31e7f2bSeric */ 1402c77d1c25Seric 140335490626Seric errno = 0; 1404588cad61Seric define('g', (char *) NULL, e); 14055826d9d3Seric return (rcode); 140625a99e2eSeric } 14075dfc646bSeric /* 140883b7ddc9Seric ** MARKFAILURE -- mark a failure on a specific address. 140983b7ddc9Seric ** 141083b7ddc9Seric ** Parameters: 141183b7ddc9Seric ** e -- the envelope we are sending. 141283b7ddc9Seric ** q -- the address to mark. 141383b7ddc9Seric ** rcode -- the code signifying the particular failure. 141483b7ddc9Seric ** 141583b7ddc9Seric ** Returns: 141683b7ddc9Seric ** none. 141783b7ddc9Seric ** 141883b7ddc9Seric ** Side Effects: 141983b7ddc9Seric ** marks the address (and possibly the envelope) with the 142083b7ddc9Seric ** failure so that an error will be returned or 142183b7ddc9Seric ** the message will be queued, as appropriate. 142283b7ddc9Seric */ 142383b7ddc9Seric 142483b7ddc9Seric markfailure(e, q, rcode) 142583b7ddc9Seric register ENVELOPE *e; 142683b7ddc9Seric register ADDRESS *q; 142783b7ddc9Seric int rcode; 142883b7ddc9Seric { 142919c47125Seric char buf[MAXLINE]; 143019c47125Seric 143183b7ddc9Seric if (rcode == EX_OK) 143283b7ddc9Seric return; 1433f170942cSeric else if (rcode == EX_TEMPFAIL) 143483b7ddc9Seric q->q_flags |= QQUEUEUP; 1435f170942cSeric else if (rcode != EX_IOERR && rcode != EX_OSERR) 1436f170942cSeric q->q_flags |= QBADADDR; 143783b7ddc9Seric } 143883b7ddc9Seric /* 1439c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 1440c579ef51Seric ** 1441c579ef51Seric ** We should never get fatal errors (e.g., segmentation 1442c579ef51Seric ** violation), so we report those specially. For other 1443c579ef51Seric ** errors, we choose a status message (into statmsg), 1444c579ef51Seric ** and if it represents an error, we print it. 1445c579ef51Seric ** 1446c579ef51Seric ** Parameters: 1447c579ef51Seric ** pid -- pid of mailer. 1448c9be6216Seric ** e -- the current envelope. 1449c9be6216Seric ** pv -- the parameter vector that invoked the mailer 1450c9be6216Seric ** (for error messages). 1451c579ef51Seric ** 1452c579ef51Seric ** Returns: 1453c579ef51Seric ** exit code of mailer. 1454c579ef51Seric ** 1455c579ef51Seric ** Side Effects: 1456c579ef51Seric ** none. 1457c579ef51Seric */ 1458c579ef51Seric 1459c9be6216Seric endmailer(mci, e, pv) 1460b31e7f2bSeric register MCI *mci; 1461c9be6216Seric register ENVELOPE *e; 1462c9be6216Seric char **pv; 1463c579ef51Seric { 1464588cad61Seric int st; 1465c579ef51Seric 146675889e88Seric /* close any connections */ 146775889e88Seric if (mci->mci_in != NULL) 1468c9be6216Seric (void) xfclose(mci->mci_in, pv[0], "mci_in"); 146975889e88Seric if (mci->mci_out != NULL) 1470c9be6216Seric (void) xfclose(mci->mci_out, pv[0], "mci_out"); 147175889e88Seric mci->mci_in = mci->mci_out = NULL; 147275889e88Seric mci->mci_state = MCIS_CLOSED; 147375889e88Seric 147433db8731Seric /* in the IPC case there is nothing to wait for */ 147575889e88Seric if (mci->mci_pid == 0) 147633db8731Seric return (EX_OK); 147733db8731Seric 147833db8731Seric /* wait for the mailer process to die and collect status */ 147975889e88Seric st = waitfor(mci->mci_pid); 1480588cad61Seric if (st == -1) 148178de67c1Seric { 1482c9be6216Seric syserr("endmailer %s: wait", pv[0]); 1483588cad61Seric return (EX_SOFTWARE); 1484c579ef51Seric } 148533db8731Seric 148633db8731Seric /* see if it died a horrid death */ 1487c579ef51Seric if ((st & 0377) != 0) 1488c579ef51Seric { 1489c9be6216Seric syserr("mailer %s died with signal %o", pv[0], st); 1490c9be6216Seric 1491c9be6216Seric /* log the arguments */ 1492c9be6216Seric if (e->e_xfp != NULL) 1493c9be6216Seric { 1494c9be6216Seric register char **av; 1495c9be6216Seric 1496c9be6216Seric fprintf(e->e_xfp, "Arguments:"); 1497c9be6216Seric for (av = pv; *av != NULL; av++) 1498c9be6216Seric fprintf(e->e_xfp, " %s", *av); 1499c9be6216Seric fprintf(e->e_xfp, "\n"); 1500c9be6216Seric } 1501c9be6216Seric 15025f73204aSeric ExitStat = EX_TEMPFAIL; 15035f73204aSeric return (EX_TEMPFAIL); 1504c579ef51Seric } 150533db8731Seric 150633db8731Seric /* normal death -- return status */ 1507588cad61Seric st = (st >> 8) & 0377; 1508588cad61Seric return (st); 1509c579ef51Seric } 1510c579ef51Seric /* 151125a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 151225a99e2eSeric ** 151325a99e2eSeric ** Parameters: 151425a99e2eSeric ** stat -- the status code from the mailer (high byte 151525a99e2eSeric ** only; core dumps must have been taken care of 151625a99e2eSeric ** already). 151781161401Seric ** m -- the mailer info for this mailer. 151881161401Seric ** mci -- the mailer connection info -- can be NULL if the 151981161401Seric ** response is given before the connection is made. 152081161401Seric ** e -- the current envelope. 152125a99e2eSeric ** 152225a99e2eSeric ** Returns: 1523db8841e9Seric ** none. 152425a99e2eSeric ** 152525a99e2eSeric ** Side Effects: 1526c1f9df2cSeric ** Errors may be incremented. 152725a99e2eSeric ** ExitStat may be set. 152825a99e2eSeric */ 152925a99e2eSeric 153081161401Seric giveresponse(stat, m, mci, e) 153125a99e2eSeric int stat; 1532588cad61Seric register MAILER *m; 153381161401Seric register MCI *mci; 1534198d9be0Seric ENVELOPE *e; 153525a99e2eSeric { 15369c16475dSeric register const char *statmsg; 153725a99e2eSeric extern char *SysExMsg[]; 153825a99e2eSeric register int i; 1539d4bd8f0eSbostic extern int N_SysEx; 1540198d9be0Seric char buf[MAXLINE]; 154125a99e2eSeric 154213bbc08cSeric /* 154313bbc08cSeric ** Compute status message from code. 154413bbc08cSeric */ 154513bbc08cSeric 154625a99e2eSeric i = stat - EX__BASE; 1547588cad61Seric if (stat == 0) 15486fe8c3bcSeric { 1549588cad61Seric statmsg = "250 Sent"; 1550ce5531bdSeric if (e->e_statmsg != NULL) 15516fe8c3bcSeric { 1552ce5531bdSeric (void) sprintf(buf, "%s (%s)", statmsg, e->e_statmsg); 15536fe8c3bcSeric statmsg = buf; 15546fe8c3bcSeric } 15556fe8c3bcSeric } 1556588cad61Seric else if (i < 0 || i > N_SysEx) 1557588cad61Seric { 1558588cad61Seric (void) sprintf(buf, "554 unknown mailer error %d", stat); 1559588cad61Seric stat = EX_UNAVAILABLE; 1560588cad61Seric statmsg = buf; 1561588cad61Seric } 1562198d9be0Seric else if (stat == EX_TEMPFAIL) 1563198d9be0Seric { 15647d55540cSeric (void) strcpy(buf, SysExMsg[i] + 1); 1565d4bd8f0eSbostic #ifdef NAMED_BIND 1566f28da541Smiriam if (h_errno == TRY_AGAIN) 15674d50702aSeric statmsg = errstring(h_errno+E_DNSBASE); 1568f28da541Smiriam else 1569d4bd8f0eSbostic #endif 1570f28da541Smiriam { 15718557d168Seric if (errno != 0) 1572d87e85f3Seric statmsg = errstring(errno); 1573d87e85f3Seric else 1574d87e85f3Seric { 1575d87e85f3Seric #ifdef SMTP 1576d87e85f3Seric extern char SmtpError[]; 1577d87e85f3Seric 1578d87e85f3Seric statmsg = SmtpError; 15796c2c3107Seric #else /* SMTP */ 1580d87e85f3Seric statmsg = NULL; 15816c2c3107Seric #endif /* SMTP */ 1582d87e85f3Seric } 1583f28da541Smiriam } 1584d87e85f3Seric if (statmsg != NULL && statmsg[0] != '\0') 1585d87e85f3Seric { 158687c9b3e7Seric (void) strcat(buf, ": "); 1587d87e85f3Seric (void) strcat(buf, statmsg); 15888557d168Seric } 1589198d9be0Seric statmsg = buf; 1590198d9be0Seric } 1591f170942cSeric #ifdef NAMED_BIND 1592f170942cSeric else if (stat == EX_NOHOST && h_errno != 0) 1593f170942cSeric { 15944d50702aSeric statmsg = errstring(h_errno + E_DNSBASE); 1595f170942cSeric (void) sprintf(buf, "%s (%s)", SysExMsg[i], statmsg); 1596f170942cSeric statmsg = buf; 1597f170942cSeric } 1598f170942cSeric #endif 159925a99e2eSeric else 1600d87e85f3Seric { 160125a99e2eSeric statmsg = SysExMsg[i]; 16027d55540cSeric if (*statmsg++ == ':') 16037d55540cSeric { 16047d55540cSeric (void) sprintf(buf, "%s: %s", statmsg, errstring(errno)); 16057d55540cSeric statmsg = buf; 16067d55540cSeric } 1607d87e85f3Seric } 1608588cad61Seric 1609588cad61Seric /* 1610588cad61Seric ** Print the message as appropriate 1611588cad61Seric */ 1612588cad61Seric 1613198d9be0Seric if (stat == EX_OK || stat == EX_TEMPFAIL) 1614e12d03eeSeric message(&statmsg[4], errstring(errno)); 161525a99e2eSeric else 161625a99e2eSeric { 1617c1f9df2cSeric Errors++; 1618e12d03eeSeric usrerr(statmsg, errstring(errno)); 161925a99e2eSeric } 162025a99e2eSeric 162125a99e2eSeric /* 162225a99e2eSeric ** Final cleanup. 162325a99e2eSeric ** Log a record of the transaction. Compute the new 162425a99e2eSeric ** ExitStat -- if we already had an error, stick with 162525a99e2eSeric ** that. 162625a99e2eSeric */ 162725a99e2eSeric 16282f624c86Seric if (LogLevel > ((stat == EX_TEMPFAIL) ? 8 : (stat == EX_OK) ? 7 : 6)) 162981161401Seric logdelivery(m, mci, &statmsg[4], e); 1630eb238f8cSeric 1631eb238f8cSeric if (stat != EX_TEMPFAIL) 1632eb238f8cSeric setstat(stat); 1633198d9be0Seric if (stat != EX_OK) 1634198d9be0Seric { 1635198d9be0Seric if (e->e_message != NULL) 1636198d9be0Seric free(e->e_message); 1637198d9be0Seric e->e_message = newstr(&statmsg[4]); 1638198d9be0Seric } 16398557d168Seric errno = 0; 1640d4bd8f0eSbostic #ifdef NAMED_BIND 1641f28da541Smiriam h_errno = 0; 1642d4bd8f0eSbostic #endif 1643eb238f8cSeric } 1644eb238f8cSeric /* 1645eb238f8cSeric ** LOGDELIVERY -- log the delivery in the system log 1646eb238f8cSeric ** 1647eb238f8cSeric ** Parameters: 164881161401Seric ** m -- the mailer info. Can be NULL for initial queue. 164981161401Seric ** mci -- the mailer connection info -- can be NULL if the 165081161401Seric ** log is occuring when no connection is active. 165181161401Seric ** stat -- the message to print for the status. 165281161401Seric ** e -- the current envelope. 1653eb238f8cSeric ** 1654eb238f8cSeric ** Returns: 1655eb238f8cSeric ** none 1656eb238f8cSeric ** 1657eb238f8cSeric ** Side Effects: 1658eb238f8cSeric ** none 1659eb238f8cSeric */ 1660eb238f8cSeric 166181161401Seric logdelivery(m, mci, stat, e) 166281161401Seric MAILER *m; 166381161401Seric register MCI *mci; 1664eb238f8cSeric char *stat; 1665b31e7f2bSeric register ENVELOPE *e; 16665cf56be3Seric { 1667eb238f8cSeric # ifdef LOG 1668d6acf3eeSeric char buf[512]; 16699507d1f9Seric 167048ed5d33Seric (void) sprintf(buf, "delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 167181161401Seric 167248ed5d33Seric if (m != NULL) 167371ff6caaSeric { 167448ed5d33Seric (void) strcat(buf, ", mailer="); 167548ed5d33Seric (void) strcat(buf, m->m_name); 167671ff6caaSeric } 167748ed5d33Seric 167848ed5d33Seric if (mci != NULL && mci->mci_host != NULL) 167971ff6caaSeric { 168071ff6caaSeric # ifdef DAEMON 1681e2f2f828Seric extern SOCKADDR CurHostAddr; 168248ed5d33Seric # endif 168371ff6caaSeric 168448ed5d33Seric (void) strcat(buf, ", relay="); 168548ed5d33Seric (void) strcat(buf, mci->mci_host); 168648ed5d33Seric 168748ed5d33Seric # ifdef DAEMON 168848ed5d33Seric (void) strcat(buf, " ("); 1689e2f2f828Seric (void) strcat(buf, anynet_ntoa(&CurHostAddr)); 169048ed5d33Seric (void) strcat(buf, ")"); 169171ff6caaSeric # endif 169271ff6caaSeric } 16939507d1f9Seric else 169448ed5d33Seric { 169548ed5d33Seric char *p = macvalue('h', e); 16969507d1f9Seric 169748ed5d33Seric if (p != NULL && p[0] != '\0') 169848ed5d33Seric { 169948ed5d33Seric (void) strcat(buf, ", relay="); 170048ed5d33Seric (void) strcat(buf, p); 170148ed5d33Seric } 170248ed5d33Seric } 1703d6acf3eeSeric 1704d6acf3eeSeric syslog(LOG_INFO, "%s: to=%s, %s, stat=%s", 1705d6acf3eeSeric e->e_id, e->e_to, buf, stat); 17066c2c3107Seric # endif /* LOG */ 170725a99e2eSeric } 170825a99e2eSeric /* 170951552439Seric ** PUTFROMLINE -- output a UNIX-style from line (or whatever) 171025a99e2eSeric ** 171151552439Seric ** This can be made an arbitrary message separator by changing $l 171251552439Seric ** 17139b6c17a6Seric ** One of the ugliest hacks seen by human eyes is contained herein: 17149b6c17a6Seric ** UUCP wants those stupid "remote from <host>" lines. Why oh why 17159b6c17a6Seric ** does a well-meaning programmer such as myself have to deal with 17169b6c17a6Seric ** this kind of antique garbage???? 171725a99e2eSeric ** 171825a99e2eSeric ** Parameters: 171951552439Seric ** fp -- the file to output to. 172051552439Seric ** m -- the mailer describing this entry. 172125a99e2eSeric ** 172225a99e2eSeric ** Returns: 172351552439Seric ** none 172425a99e2eSeric ** 172525a99e2eSeric ** Side Effects: 172651552439Seric ** outputs some text to fp. 172725a99e2eSeric */ 172825a99e2eSeric 1729b31e7f2bSeric putfromline(fp, m, e) 173051552439Seric register FILE *fp; 173151552439Seric register MAILER *m; 1732b31e7f2bSeric ENVELOPE *e; 173325a99e2eSeric { 17342bc47524Seric char *template = "\201l\n"; 173551552439Seric char buf[MAXLINE]; 173625a99e2eSeric 173757fc6f17Seric if (bitnset(M_NHDR, m->m_flags)) 173851552439Seric return; 173913bbc08cSeric 17402c7e1b8dSeric # ifdef UGLYUUCP 174157fc6f17Seric if (bitnset(M_UGLYUUCP, m->m_flags)) 174274b6e67bSeric { 1743ea09d6edSeric char *bang; 1744ea09d6edSeric char xbuf[MAXLINE]; 174574b6e67bSeric 1746ee4b0922Seric expand("\201g", buf, &buf[sizeof buf - 1], e); 17476c2c3107Seric bang = strchr(buf, '!'); 174874b6e67bSeric if (bang == NULL) 174908b25121Seric syserr("554 No ! in UUCP! (%s)", buf); 175074b6e67bSeric else 1751588cad61Seric { 1752ea09d6edSeric *bang++ = '\0'; 17532bc47524Seric (void) sprintf(xbuf, "From %s \201d remote from %s\n", bang, buf); 1754ea09d6edSeric template = xbuf; 175574b6e67bSeric } 1756588cad61Seric } 17576c2c3107Seric # endif /* UGLYUUCP */ 1758b31e7f2bSeric expand(template, buf, &buf[sizeof buf - 1], e); 175977b52738Seric putline(buf, fp, m); 1760bc6e2962Seric } 1761bc6e2962Seric /* 176251552439Seric ** PUTBODY -- put the body of a message. 176351552439Seric ** 176451552439Seric ** Parameters: 176551552439Seric ** fp -- file to output onto. 176677b52738Seric ** m -- a mailer descriptor to control output format. 17679a6a5f55Seric ** e -- the envelope to put out. 176803c02fdeSeric ** separator -- if non-NULL, a message separator that must 176903c02fdeSeric ** not be permitted in the resulting message. 177051552439Seric ** 177151552439Seric ** Returns: 177251552439Seric ** none. 177351552439Seric ** 177451552439Seric ** Side Effects: 177551552439Seric ** The message is written onto fp. 177651552439Seric */ 177751552439Seric 177803c02fdeSeric putbody(fp, m, e, separator) 177951552439Seric FILE *fp; 1780588cad61Seric MAILER *m; 17819a6a5f55Seric register ENVELOPE *e; 178203c02fdeSeric char *separator; 178351552439Seric { 178477b52738Seric char buf[MAXLINE]; 178551552439Seric 178651552439Seric /* 178751552439Seric ** Output the body of the message 178851552439Seric */ 178951552439Seric 17909a6a5f55Seric if (e->e_dfp == NULL) 179151552439Seric { 17929a6a5f55Seric if (e->e_df != NULL) 17939a6a5f55Seric { 17949a6a5f55Seric e->e_dfp = fopen(e->e_df, "r"); 17959a6a5f55Seric if (e->e_dfp == NULL) 17968f9146b0Srick syserr("putbody: Cannot open %s for %s from %s", 1797e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 17989a6a5f55Seric } 17999a6a5f55Seric else 180077b52738Seric putline("<<< No Message Collected >>>", fp, m); 18019a6a5f55Seric } 18029a6a5f55Seric if (e->e_dfp != NULL) 18039a6a5f55Seric { 18049a6a5f55Seric rewind(e->e_dfp); 180577b52738Seric while (!ferror(fp) && fgets(buf, sizeof buf, e->e_dfp) != NULL) 180624fc8aeeSeric { 180724fc8aeeSeric if (buf[0] == 'F' && bitnset(M_ESCFROM, m->m_flags) && 1808d6fa2b58Sbostic strncmp(buf, "From ", 5) == 0) 18093462ad9eSeric (void) putc('>', fp); 181003c02fdeSeric if (buf[0] == '-' && buf[1] == '-' && separator != NULL) 181103c02fdeSeric { 181203c02fdeSeric /* possible separator */ 181303c02fdeSeric int sl = strlen(separator); 181403c02fdeSeric 181503c02fdeSeric if (strncmp(&buf[2], separator, sl) == 0) 181603c02fdeSeric (void) putc(' ', fp); 181703c02fdeSeric } 181877b52738Seric putline(buf, fp, m); 181924fc8aeeSeric } 182051552439Seric 18219a6a5f55Seric if (ferror(e->e_dfp)) 182251552439Seric { 182351552439Seric syserr("putbody: read error"); 182451552439Seric ExitStat = EX_IOERR; 182551552439Seric } 182651552439Seric } 182751552439Seric 18280890ba1fSeric /* some mailers want extra blank line at end of message */ 18290890ba1fSeric if (bitnset(M_BLANKEND, m->m_flags) && buf[0] != '\0' && buf[0] != '\n') 18300890ba1fSeric putline("", fp, m); 18310890ba1fSeric 183251552439Seric (void) fflush(fp); 183351552439Seric if (ferror(fp) && errno != EPIPE) 183451552439Seric { 183551552439Seric syserr("putbody: write error"); 183651552439Seric ExitStat = EX_IOERR; 183751552439Seric } 183851552439Seric errno = 0; 183925a99e2eSeric } 184025a99e2eSeric /* 184125a99e2eSeric ** MAILFILE -- Send a message to a file. 184225a99e2eSeric ** 1843f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 1844f129ec7dSeric ** bits, sendmail will try to become the owner of that file 1845f129ec7dSeric ** rather than the real user. Obviously, this only works if 1846f129ec7dSeric ** sendmail runs as root. 1847f129ec7dSeric ** 1848588cad61Seric ** This could be done as a subordinate mailer, except that it 1849588cad61Seric ** is used implicitly to save messages in ~/dead.letter. We 1850588cad61Seric ** view this as being sufficiently important as to include it 1851588cad61Seric ** here. For example, if the system is dying, we shouldn't have 1852588cad61Seric ** to create another process plus some pipes to save the message. 1853588cad61Seric ** 185425a99e2eSeric ** Parameters: 185525a99e2eSeric ** filename -- the name of the file to send to. 18566259796dSeric ** ctladdr -- the controlling address header -- includes 18576259796dSeric ** the userid/groupid to be when sending. 185825a99e2eSeric ** 185925a99e2eSeric ** Returns: 186025a99e2eSeric ** The exit code associated with the operation. 186125a99e2eSeric ** 186225a99e2eSeric ** Side Effects: 186325a99e2eSeric ** none. 186425a99e2eSeric */ 186525a99e2eSeric 1866b31e7f2bSeric mailfile(filename, ctladdr, e) 186725a99e2eSeric char *filename; 18686259796dSeric ADDRESS *ctladdr; 1869b31e7f2bSeric register ENVELOPE *e; 187025a99e2eSeric { 187125a99e2eSeric register FILE *f; 187232d19d43Seric register int pid; 187315d084d5Seric int mode; 187425a99e2eSeric 1875671745f3Seric if (tTd(11, 1)) 1876671745f3Seric { 1877671745f3Seric printf("mailfile %s\n ctladdr=", filename); 1878671745f3Seric printaddr(ctladdr, FALSE); 1879671745f3Seric } 1880671745f3Seric 1881f170942cSeric if (e->e_xfp != NULL) 1882f170942cSeric fflush(e->e_xfp); 1883f170942cSeric 188432d19d43Seric /* 188532d19d43Seric ** Fork so we can change permissions here. 188632d19d43Seric ** Note that we MUST use fork, not vfork, because of 188732d19d43Seric ** the complications of calling subroutines, etc. 188832d19d43Seric */ 188932d19d43Seric 189032d19d43Seric DOFORK(fork); 189132d19d43Seric 189232d19d43Seric if (pid < 0) 189332d19d43Seric return (EX_OSERR); 189432d19d43Seric else if (pid == 0) 189532d19d43Seric { 189632d19d43Seric /* child -- actually write to file */ 1897f129ec7dSeric struct stat stb; 1898f129ec7dSeric 18992b9178d3Seric (void) setsignal(SIGINT, SIG_DFL); 19002b9178d3Seric (void) setsignal(SIGHUP, SIG_DFL); 19012b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 19023462ad9eSeric (void) umask(OldUmask); 190395f16dc0Seric 1904f129ec7dSeric if (stat(filename, &stb) < 0) 19053a98e7eaSeric stb.st_mode = FileMode; 190615d084d5Seric mode = stb.st_mode; 190795f16dc0Seric 190895f16dc0Seric /* limit the errors to those actually caused in the child */ 190995f16dc0Seric errno = 0; 191095f16dc0Seric ExitStat = EX_OK; 191195f16dc0Seric 1912f129ec7dSeric if (bitset(0111, stb.st_mode)) 1913f129ec7dSeric exit(EX_CANTCREAT); 191403827b5fSeric if (ctladdr == NULL) 19158f9146b0Srick ctladdr = &e->e_from; 191615d084d5Seric else 191715d084d5Seric { 191815d084d5Seric /* ignore setuid and setgid bits */ 191915d084d5Seric mode &= ~(S_ISGID|S_ISUID); 192015d084d5Seric } 192115d084d5Seric 19228f9146b0Srick /* we have to open the dfile BEFORE setuid */ 19238f9146b0Srick if (e->e_dfp == NULL && e->e_df != NULL) 19248f9146b0Srick { 19258f9146b0Srick e->e_dfp = fopen(e->e_df, "r"); 192695f16dc0Seric if (e->e_dfp == NULL) 192795f16dc0Seric { 19288f9146b0Srick syserr("mailfile: Cannot open %s for %s from %s", 1929e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 19308f9146b0Srick } 19318f9146b0Srick } 19328f9146b0Srick 193315d084d5Seric if (!bitset(S_ISGID, mode) || setgid(stb.st_gid) < 0) 1934e36b99e2Seric { 193595f16dc0Seric if (ctladdr->q_uid == 0) 193695f16dc0Seric { 1937e36b99e2Seric (void) setgid(DefGid); 1938898a126bSbostic (void) initgroups(DefUser, DefGid); 193995f16dc0Seric } 194095f16dc0Seric else 194195f16dc0Seric { 19426259796dSeric (void) setgid(ctladdr->q_gid); 1943898a126bSbostic (void) initgroups(ctladdr->q_ruser ? 1944898a126bSbostic ctladdr->q_ruser : ctladdr->q_user, 1945898a126bSbostic ctladdr->q_gid); 1946898a126bSbostic } 1947e36b99e2Seric } 194815d084d5Seric if (!bitset(S_ISUID, mode) || setuid(stb.st_uid) < 0) 1949e36b99e2Seric { 1950e36b99e2Seric if (ctladdr->q_uid == 0) 1951e36b99e2Seric (void) setuid(DefUid); 1952e36b99e2Seric else 19536259796dSeric (void) setuid(ctladdr->q_uid); 1954e36b99e2Seric } 195595f16dc0Seric FileName = filename; 195695f16dc0Seric LineNumber = 0; 19573a98e7eaSeric f = dfopen(filename, O_WRONLY|O_CREAT|O_APPEND, FileMode); 195825a99e2eSeric if (f == NULL) 195995f16dc0Seric { 196008b25121Seric message("554 cannot open"); 196132d19d43Seric exit(EX_CANTCREAT); 196295f16dc0Seric } 196325a99e2eSeric 19640331ce05Seric putfromline(f, FileMailer, e); 19650331ce05Seric (*e->e_puthdr)(f, FileMailer, e); 19660331ce05Seric putline("\n", f, FileMailer); 196703c02fdeSeric (*e->e_putbody)(f, FileMailer, e, NULL); 19680331ce05Seric putline("\n", f, FileMailer); 196995f16dc0Seric if (ferror(f)) 197095f16dc0Seric { 197108b25121Seric message("451 I/O error"); 197295f16dc0Seric setstat(EX_IOERR); 197395f16dc0Seric } 1974ee4b0922Seric (void) xfclose(f, "mailfile", filename); 197532d19d43Seric (void) fflush(stdout); 1976e36b99e2Seric 197727628d59Seric /* reset ISUID & ISGID bits for paranoid systems */ 1978c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 197995f16dc0Seric exit(ExitStat); 198013bbc08cSeric /*NOTREACHED*/ 198132d19d43Seric } 198232d19d43Seric else 198332d19d43Seric { 198432d19d43Seric /* parent -- wait for exit status */ 1985588cad61Seric int st; 198632d19d43Seric 1987588cad61Seric st = waitfor(pid); 1988588cad61Seric if ((st & 0377) != 0) 1989588cad61Seric return (EX_UNAVAILABLE); 1990588cad61Seric else 1991588cad61Seric return ((st >> 8) & 0377); 19928f9146b0Srick /*NOTREACHED*/ 199332d19d43Seric } 199425a99e2eSeric } 1995ea4dc939Seric /* 1996e103b48fSeric ** HOSTSIGNATURE -- return the "signature" for a host. 1997e103b48fSeric ** 1998e103b48fSeric ** The signature describes how we are going to send this -- it 1999e103b48fSeric ** can be just the hostname (for non-Internet hosts) or can be 2000e103b48fSeric ** an ordered list of MX hosts. 2001e103b48fSeric ** 2002e103b48fSeric ** Parameters: 2003e103b48fSeric ** m -- the mailer describing this host. 2004e103b48fSeric ** host -- the host name. 2005e103b48fSeric ** e -- the current envelope. 2006e103b48fSeric ** 2007e103b48fSeric ** Returns: 2008e103b48fSeric ** The signature for this host. 2009e103b48fSeric ** 2010e103b48fSeric ** Side Effects: 2011e103b48fSeric ** Can tweak the symbol table. 2012e103b48fSeric */ 2013e103b48fSeric 2014e103b48fSeric char * 2015e103b48fSeric hostsignature(m, host, e) 2016e103b48fSeric register MAILER *m; 2017e103b48fSeric char *host; 2018e103b48fSeric ENVELOPE *e; 2019e103b48fSeric { 2020e103b48fSeric register char *p; 2021e103b48fSeric register STAB *s; 2022e103b48fSeric int i; 2023e103b48fSeric int len; 2024e103b48fSeric #ifdef NAMED_BIND 2025e103b48fSeric int nmx; 2026e103b48fSeric auto int rcode; 2027bafdc4e5Seric char *hp; 2028bafdc4e5Seric char *endp; 2029516782b4Seric int oldoptions; 2030e103b48fSeric char *mxhosts[MAXMXHOSTS + 1]; 2031e103b48fSeric #endif 2032e103b48fSeric 2033e103b48fSeric /* 2034e103b48fSeric ** Check to see if this uses IPC -- if not, it can't have MX records. 2035e103b48fSeric */ 2036e103b48fSeric 2037e103b48fSeric p = m->m_mailer; 2038e103b48fSeric if (strcmp(p, "[IPC]") != 0 && strcmp(p, "[TCP]") != 0) 2039e103b48fSeric { 2040e103b48fSeric /* just an ordinary mailer */ 2041e103b48fSeric return host; 2042e103b48fSeric } 2043e103b48fSeric 2044e103b48fSeric /* 2045e103b48fSeric ** If it is a numeric address, just return it. 2046e103b48fSeric */ 2047e103b48fSeric 2048e103b48fSeric if (host[0] == '[') 2049e103b48fSeric return host; 2050e103b48fSeric 2051e103b48fSeric /* 2052e103b48fSeric ** Look it up in the symbol table. 2053e103b48fSeric */ 2054e103b48fSeric 2055e103b48fSeric s = stab(host, ST_HOSTSIG, ST_ENTER); 2056e103b48fSeric if (s->s_hostsig != NULL) 2057e103b48fSeric return s->s_hostsig; 2058e103b48fSeric 2059e103b48fSeric /* 2060e103b48fSeric ** Not already there -- create a signature. 2061e103b48fSeric */ 2062e103b48fSeric 2063e103b48fSeric #ifdef NAMED_BIND 2064516782b4Seric if (ConfigLevel < 2) 2065516782b4Seric { 2066516782b4Seric oldoptions = _res.options; 2067516782b4Seric _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 2068516782b4Seric } 2069516782b4Seric 2070bafdc4e5Seric for (hp = host; hp != NULL; hp = endp) 2071bafdc4e5Seric { 2072bafdc4e5Seric endp = strchr(hp, ':'); 2073bafdc4e5Seric if (endp != NULL) 2074bafdc4e5Seric *endp = '\0'; 2075bafdc4e5Seric 20767bf809e6Seric nmx = getmxrr(hp, mxhosts, TRUE, &rcode); 20777d55540cSeric 2078e103b48fSeric if (nmx <= 0) 2079e103b48fSeric { 2080e103b48fSeric register MCI *mci; 2081e103b48fSeric extern int errno; 2082e103b48fSeric 2083e103b48fSeric /* update the connection info for this host */ 2084bafdc4e5Seric mci = mci_get(hp, m); 2085e103b48fSeric mci->mci_exitstat = rcode; 2086e103b48fSeric mci->mci_errno = errno; 2087f170942cSeric #ifdef NAMED_BIND 2088f170942cSeric mci->mci_herrno = h_errno; 2089f170942cSeric #endif 2090e103b48fSeric 2091e103b48fSeric /* and return the original host name as the signature */ 2092bafdc4e5Seric nmx = 1; 2093bafdc4e5Seric mxhosts[0] = hp; 2094e103b48fSeric } 2095e103b48fSeric 2096e103b48fSeric len = 0; 2097e103b48fSeric for (i = 0; i < nmx; i++) 2098e103b48fSeric { 2099e103b48fSeric len += strlen(mxhosts[i]) + 1; 2100e103b48fSeric } 2101bafdc4e5Seric if (s->s_hostsig != NULL) 2102bafdc4e5Seric len += strlen(s->s_hostsig) + 1; 2103bafdc4e5Seric p = xalloc(len); 2104bafdc4e5Seric if (s->s_hostsig != NULL) 2105bafdc4e5Seric { 2106bafdc4e5Seric (void) strcpy(p, s->s_hostsig); 2107bafdc4e5Seric free(s->s_hostsig); 2108bafdc4e5Seric s->s_hostsig = p; 2109bafdc4e5Seric p += strlen(p); 2110bafdc4e5Seric *p++ = ':'; 2111bafdc4e5Seric } 2112bafdc4e5Seric else 2113bafdc4e5Seric s->s_hostsig = p; 2114e103b48fSeric for (i = 0; i < nmx; i++) 2115e103b48fSeric { 2116e103b48fSeric if (i != 0) 2117e103b48fSeric *p++ = ':'; 2118e103b48fSeric strcpy(p, mxhosts[i]); 2119e103b48fSeric p += strlen(p); 2120e103b48fSeric } 2121bafdc4e5Seric if (endp != NULL) 2122bafdc4e5Seric *endp++ = ':'; 2123bafdc4e5Seric } 2124e103b48fSeric makelower(s->s_hostsig); 2125516782b4Seric if (ConfigLevel < 2) 2126516782b4Seric _res.options = oldoptions; 2127e103b48fSeric #else 2128e103b48fSeric /* not using BIND -- the signature is just the host name */ 2129e103b48fSeric s->s_hostsig = host; 2130e103b48fSeric #endif 2131e103b48fSeric if (tTd(17, 1)) 2132e103b48fSeric printf("hostsignature(%s) = %s\n", host, s->s_hostsig); 2133e103b48fSeric return s->s_hostsig; 2134e103b48fSeric } 2135