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*fce3c07bSeric static char sccsid[] = "@(#)deliver.c 8.81 (Berkeley) 04/14/94"; 11e70a7521Sbostic #endif /* not lint */ 124227346bSdist 13fcde9cc8Sbostic #include "sendmail.h" 14f28da541Smiriam #include <netdb.h> 15911693bfSbostic #include <errno.h> 169d4a8008Seric #if NAMED_BIND 17912a731aSbostic #include <arpa/nameser.h> 18912a731aSbostic #include <resolv.h> 19f170942cSeric 20f170942cSeric extern int h_errno; 21134746fbSeric #endif 2225a99e2eSeric 235d437c4dSeric extern char SmtpError[]; 245d437c4dSeric 2525a99e2eSeric /* 269c9e68d9Seric ** SENDALL -- actually send all the messages. 279c9e68d9Seric ** 289c9e68d9Seric ** Parameters: 299c9e68d9Seric ** e -- the envelope to send. 309c9e68d9Seric ** mode -- the delivery mode to use. If SM_DEFAULT, use 319c9e68d9Seric ** the current e->e_sendmode. 329c9e68d9Seric ** 339c9e68d9Seric ** Returns: 349c9e68d9Seric ** none. 359c9e68d9Seric ** 369c9e68d9Seric ** Side Effects: 379c9e68d9Seric ** Scans the send lists and sends everything it finds. 389c9e68d9Seric ** Delivers any appropriate error messages. 399c9e68d9Seric ** If we are running in a non-interactive mode, takes the 409c9e68d9Seric ** appropriate action. 419c9e68d9Seric */ 429c9e68d9Seric 439c9e68d9Seric sendall(e, mode) 449c9e68d9Seric ENVELOPE *e; 459c9e68d9Seric char mode; 469c9e68d9Seric { 479c9e68d9Seric register ADDRESS *q; 489c9e68d9Seric char *owner; 499c9e68d9Seric int otherowners; 50b056abd0Seric register ENVELOPE *ee; 51b056abd0Seric ENVELOPE *splitenv = NULL; 526103d9b4Seric bool announcequeueup; 539c9e68d9Seric 547880f3e4Seric /* 557880f3e4Seric ** If we have had global, fatal errors, don't bother sending 567880f3e4Seric ** the message at all if we are in SMTP mode. Local errors 577880f3e4Seric ** (e.g., a single address failing) will still cause the other 587880f3e4Seric ** addresses to be sent. 597880f3e4Seric */ 607880f3e4Seric 618d19a23dSeric if (bitset(EF_FATALERRS, e->e_flags) && 628d19a23dSeric (OpMode == MD_SMTP || OpMode == MD_DAEMON)) 63896b16f6Seric { 64896b16f6Seric e->e_flags |= EF_CLRQUEUE; 65896b16f6Seric return; 66896b16f6Seric } 67896b16f6Seric 689c9e68d9Seric /* determine actual delivery mode */ 69fbe2f963Seric CurrentLA = getla(); 709c9e68d9Seric if (mode == SM_DEFAULT) 719c9e68d9Seric { 729c9e68d9Seric mode = e->e_sendmode; 739c9e68d9Seric if (mode != SM_VERIFY && 749c9e68d9Seric shouldqueue(e->e_msgpriority, e->e_ctime)) 759c9e68d9Seric mode = SM_QUEUE; 766103d9b4Seric announcequeueup = mode == SM_QUEUE; 779c9e68d9Seric } 786103d9b4Seric else 796103d9b4Seric announcequeueup = FALSE; 809c9e68d9Seric 819c9e68d9Seric if (tTd(13, 1)) 829c9e68d9Seric { 830e484fe5Seric printf("\n===== SENDALL: mode %c, id %s, e_from ", 840e484fe5Seric mode, e->e_id); 859c9e68d9Seric printaddr(&e->e_from, FALSE); 869c9e68d9Seric printf("sendqueue:\n"); 879c9e68d9Seric printaddr(e->e_sendqueue, TRUE); 889c9e68d9Seric } 899c9e68d9Seric 909c9e68d9Seric /* 919c9e68d9Seric ** Do any preprocessing necessary for the mode we are running. 929c9e68d9Seric ** Check to make sure the hop count is reasonable. 939c9e68d9Seric ** Delete sends to the sender in mailing lists. 949c9e68d9Seric */ 959c9e68d9Seric 969c9e68d9Seric CurEnv = e; 979c9e68d9Seric 989c9e68d9Seric if (e->e_hopcount > MaxHopCount) 999c9e68d9Seric { 1009c9e68d9Seric errno = 0; 10127607809Seric e->e_flags |= EF_FATALERRS|EF_PM_NOTIFY|EF_CLRQUEUE; 1024bb8b0fdSeric syserr("554 too many hops %d (%d max): from %s via %s, to %s", 1039c9e68d9Seric e->e_hopcount, MaxHopCount, e->e_from.q_paddr, 104f7869e68Seric RealHostName == NULL ? "localhost" : RealHostName, 105f7869e68Seric e->e_sendqueue->q_paddr); 1069c9e68d9Seric return; 1079c9e68d9Seric } 1089c9e68d9Seric 109b8004690Seric /* 110b8004690Seric ** Do sender deletion. 111b8004690Seric ** 112b8004690Seric ** If the sender has the QQUEUEUP flag set, skip this. 113b8004690Seric ** This can happen if the name server is hosed when you 114b8004690Seric ** are trying to send mail. The result is that the sender 115b8004690Seric ** is instantiated in the queue as a recipient. 116b8004690Seric */ 117b8004690Seric 118e76a6a8fSeric if (!bitset(EF_METOO, e->e_flags) && 119e76a6a8fSeric !bitset(QQUEUEUP, e->e_from.q_flags)) 1209c9e68d9Seric { 1219c9e68d9Seric if (tTd(13, 5)) 1229c9e68d9Seric { 1239c9e68d9Seric printf("sendall: QDONTSEND "); 1249c9e68d9Seric printaddr(&e->e_from, FALSE); 1259c9e68d9Seric } 1269c9e68d9Seric e->e_from.q_flags |= QDONTSEND; 1279c9e68d9Seric (void) recipient(&e->e_from, &e->e_sendqueue, e); 1289c9e68d9Seric } 1299c9e68d9Seric 130ce5531bdSeric /* 131ce5531bdSeric ** Handle alias owners. 132ce5531bdSeric ** 133ce5531bdSeric ** We scan up the q_alias chain looking for owners. 134ce5531bdSeric ** We discard owners that are the same as the return path. 135ce5531bdSeric */ 136ce5531bdSeric 137ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 138ce5531bdSeric { 139ce5531bdSeric register struct address *a; 140ce5531bdSeric 141ce5531bdSeric for (a = q; a != NULL && a->q_owner == NULL; a = a->q_alias) 142ce5531bdSeric continue; 143ce5531bdSeric if (a != NULL) 144ce5531bdSeric q->q_owner = a->q_owner; 145ce5531bdSeric 146ce5531bdSeric if (q->q_owner != NULL && 147ce5531bdSeric !bitset(QDONTSEND, q->q_flags) && 148ce5531bdSeric strcmp(q->q_owner, e->e_from.q_paddr) == 0) 149ce5531bdSeric q->q_owner = NULL; 150ce5531bdSeric } 151ce5531bdSeric 152ce5531bdSeric owner = ""; 153ce5531bdSeric otherowners = 1; 154ce5531bdSeric while (owner != NULL && otherowners > 0) 155ce5531bdSeric { 156ce5531bdSeric owner = NULL; 157ce5531bdSeric otherowners = 0; 158ce5531bdSeric 159ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 160ce5531bdSeric { 161ce5531bdSeric if (bitset(QDONTSEND, q->q_flags)) 162ce5531bdSeric continue; 163ce5531bdSeric 164ce5531bdSeric if (q->q_owner != NULL) 165ce5531bdSeric { 166ce5531bdSeric if (owner == NULL) 167ce5531bdSeric owner = q->q_owner; 168ce5531bdSeric else if (owner != q->q_owner) 169ce5531bdSeric { 170ce5531bdSeric if (strcmp(owner, q->q_owner) == 0) 171ce5531bdSeric { 172ce5531bdSeric /* make future comparisons cheap */ 173ce5531bdSeric q->q_owner = owner; 174ce5531bdSeric } 175ce5531bdSeric else 176ce5531bdSeric { 177ce5531bdSeric otherowners++; 178ce5531bdSeric } 179ce5531bdSeric owner = q->q_owner; 180ce5531bdSeric } 181ce5531bdSeric } 182ce5531bdSeric else 183ce5531bdSeric { 184ce5531bdSeric otherowners++; 185ce5531bdSeric } 186ce5531bdSeric } 187ce5531bdSeric 188ce5531bdSeric if (owner != NULL && otherowners > 0) 189ce5531bdSeric { 190ce5531bdSeric extern HDR *copyheader(); 191ce5531bdSeric extern ADDRESS *copyqueue(); 192ce5531bdSeric 193ce5531bdSeric /* 194ce5531bdSeric ** Split this envelope into two. 195ce5531bdSeric */ 196ce5531bdSeric 197ce5531bdSeric ee = (ENVELOPE *) xalloc(sizeof(ENVELOPE)); 198ce5531bdSeric *ee = *e; 199ce5531bdSeric ee->e_id = NULL; 200ce5531bdSeric (void) queuename(ee, '\0'); 201ce5531bdSeric 202ce5531bdSeric if (tTd(13, 1)) 203ce5531bdSeric printf("sendall: split %s into %s\n", 204ce5531bdSeric e->e_id, ee->e_id); 205ce5531bdSeric 206ce5531bdSeric ee->e_header = copyheader(e->e_header); 207ce5531bdSeric ee->e_sendqueue = copyqueue(e->e_sendqueue); 208ce5531bdSeric ee->e_errorqueue = copyqueue(e->e_errorqueue); 209*fce3c07bSeric ee->e_flags = e->e_flags & ~(EF_INQUEUE|EF_CLRQUEUE|EF_FATALERRS|EF_SENDRECEIPT); 210*fce3c07bSeric ee->e_flags |= EF_NORECEIPT; 211ce5531bdSeric setsender(owner, ee, NULL, TRUE); 212ce5531bdSeric if (tTd(13, 5)) 213ce5531bdSeric { 214ce5531bdSeric printf("sendall(split): QDONTSEND "); 215ce5531bdSeric printaddr(&ee->e_from, FALSE); 216ce5531bdSeric } 217ce5531bdSeric ee->e_from.q_flags |= QDONTSEND; 218ce5531bdSeric ee->e_dfp = NULL; 219ce5531bdSeric ee->e_xfp = NULL; 220ce5531bdSeric ee->e_df = NULL; 221ce5531bdSeric ee->e_errormode = EM_MAIL; 222b056abd0Seric ee->e_sibling = splitenv; 223b056abd0Seric splitenv = ee; 224ce5531bdSeric 225ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 226ce5531bdSeric if (q->q_owner == owner) 227de1a6b1bSeric { 228ce5531bdSeric q->q_flags |= QDONTSEND; 229de1a6b1bSeric q->q_flags &= ~QQUEUEUP; 230de1a6b1bSeric } 231ce5531bdSeric for (q = ee->e_sendqueue; q != NULL; q = q->q_next) 232ce5531bdSeric if (q->q_owner != owner) 233de1a6b1bSeric { 234ce5531bdSeric q->q_flags |= QDONTSEND; 235de1a6b1bSeric q->q_flags &= ~QQUEUEUP; 236de1a6b1bSeric } 237ce5531bdSeric 238ce5531bdSeric if (e->e_df != NULL && mode != SM_VERIFY) 239ce5531bdSeric { 240ce5531bdSeric ee->e_dfp = NULL; 241da662164Seric ee->e_df = queuename(ee, 'd'); 242da662164Seric ee->e_df = newstr(ee->e_df); 243ce5531bdSeric if (link(e->e_df, ee->e_df) < 0) 244ce5531bdSeric { 245ce5531bdSeric syserr("sendall: link(%s, %s)", 246ce5531bdSeric e->e_df, ee->e_df); 247ce5531bdSeric } 248ce5531bdSeric } 249ce5531bdSeric #ifdef LOG 250ce5531bdSeric if (LogLevel > 4) 251c8b70947Seric syslog(LOG_INFO, "%s: clone %s, owner=%s", 252c8b70947Seric ee->e_id, e->e_id, owner); 253ce5531bdSeric #endif 254ce5531bdSeric } 255ce5531bdSeric } 256ce5531bdSeric 257ce5531bdSeric if (owner != NULL) 258ce5531bdSeric { 259ce5531bdSeric setsender(owner, e, NULL, TRUE); 260ce5531bdSeric if (tTd(13, 5)) 261ce5531bdSeric { 262ce5531bdSeric printf("sendall(owner): QDONTSEND "); 263ce5531bdSeric printaddr(&e->e_from, FALSE); 264ce5531bdSeric } 265ce5531bdSeric e->e_from.q_flags |= QDONTSEND; 266ce5531bdSeric e->e_errormode = EM_MAIL; 267*fce3c07bSeric e->e_flags |= EF_NORECEIPT; 268ce5531bdSeric } 269ce5531bdSeric 270c1ac89b1Seric # ifdef QUEUE 271c1ac89b1Seric if ((mode == SM_QUEUE || mode == SM_FORK || 272c1ac89b1Seric (mode != SM_VERIFY && SuperSafe)) && 273c1ac89b1Seric !bitset(EF_INQUEUE, e->e_flags)) 274c1ac89b1Seric { 275c1ac89b1Seric /* be sure everything is instantiated in the queue */ 2766103d9b4Seric queueup(e, TRUE, announcequeueup); 277b056abd0Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 278b056abd0Seric queueup(ee, TRUE, announcequeueup); 279c1ac89b1Seric } 280c1ac89b1Seric #endif /* QUEUE */ 281c1ac89b1Seric 282b056abd0Seric if (splitenv != NULL) 283b056abd0Seric { 284b056abd0Seric if (tTd(13, 1)) 285b056abd0Seric { 286b056abd0Seric printf("\nsendall: Split queue; remaining queue:\n"); 287b056abd0Seric printaddr(e->e_sendqueue, TRUE); 288b056abd0Seric } 289b056abd0Seric 290b056abd0Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 291b056abd0Seric { 292b056abd0Seric CurEnv = ee; 293562ec147Seric if (mode != SM_VERIFY) 294562ec147Seric openxscript(ee); 295b056abd0Seric sendenvelope(ee, mode); 296562ec147Seric dropenvelope(ee); 297b056abd0Seric } 298b056abd0Seric 299b056abd0Seric CurEnv = e; 300b056abd0Seric } 301b056abd0Seric sendenvelope(e, mode); 302b056abd0Seric } 303b056abd0Seric 304b056abd0Seric sendenvelope(e, mode) 305b056abd0Seric register ENVELOPE *e; 306b056abd0Seric char mode; 307b056abd0Seric { 308b056abd0Seric bool oldverbose; 309b056abd0Seric int pid; 310b056abd0Seric register ADDRESS *q; 311b056abd0Seric char *qf; 312b056abd0Seric char *id; 313b056abd0Seric 3147880f3e4Seric /* 3157880f3e4Seric ** If we have had global, fatal errors, don't bother sending 3167880f3e4Seric ** the message at all if we are in SMTP mode. Local errors 3177880f3e4Seric ** (e.g., a single address failing) will still cause the other 3187880f3e4Seric ** addresses to be sent. 3197880f3e4Seric */ 3207880f3e4Seric 3218d19a23dSeric if (bitset(EF_FATALERRS, e->e_flags) && 3228d19a23dSeric (OpMode == MD_SMTP || OpMode == MD_DAEMON)) 3237880f3e4Seric { 3247880f3e4Seric e->e_flags |= EF_CLRQUEUE; 3257880f3e4Seric return; 3267880f3e4Seric } 3277880f3e4Seric 328ce5531bdSeric oldverbose = Verbose; 329c1ac89b1Seric switch (mode) 330c1ac89b1Seric { 331c1ac89b1Seric case SM_VERIFY: 332c1ac89b1Seric Verbose = TRUE; 333c1ac89b1Seric break; 334c1ac89b1Seric 335c1ac89b1Seric case SM_QUEUE: 336c1ac89b1Seric queueonly: 337c1ac89b1Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 338c1ac89b1Seric return; 339c1ac89b1Seric 340c1ac89b1Seric case SM_FORK: 341c1ac89b1Seric if (e->e_xfp != NULL) 342c1ac89b1Seric (void) fflush(e->e_xfp); 343c1ac89b1Seric 344b269aa8eSeric # if !HASFLOCK 345c1ac89b1Seric /* 3466b2765c6Seric ** Since fcntl locking has the interesting semantic that 3476b2765c6Seric ** the lock is owned by a process, not by an open file 3486b2765c6Seric ** descriptor, we have to flush this to the queue, and 3496b2765c6Seric ** then restart from scratch in the child. 350c1ac89b1Seric */ 351c1ac89b1Seric 3526b2765c6Seric /* save id for future use */ 3536b2765c6Seric id = e->e_id; 3546b2765c6Seric 3556b2765c6Seric /* now drop the envelope in the parent */ 3566b2765c6Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 3576b2765c6Seric dropenvelope(e); 3586b2765c6Seric 3596b2765c6Seric /* and reacquire in the child */ 3606b2765c6Seric (void) dowork(id, TRUE, FALSE, e); 3616b2765c6Seric 3626b2765c6Seric return; 3636b2765c6Seric 3646b2765c6Seric # else /* HASFLOCK */ 365c1ac89b1Seric 366c1ac89b1Seric pid = fork(); 367c1ac89b1Seric if (pid < 0) 368c1ac89b1Seric { 369c1ac89b1Seric goto queueonly; 370c1ac89b1Seric } 371c1ac89b1Seric else if (pid > 0) 372c1ac89b1Seric { 3730e484fe5Seric /* be sure we leave the temp files to our child */ 3740e484fe5Seric /* can't call unlockqueue to avoid unlink of xfp */ 3750e484fe5Seric if (e->e_lockfp != NULL) 3760e484fe5Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 3770e484fe5Seric e->e_lockfp = NULL; 3780e484fe5Seric 3790e484fe5Seric /* close any random open files in the envelope */ 3800e484fe5Seric closexscript(e); 3810e484fe5Seric if (e->e_dfp != NULL) 3820e484fe5Seric (void) xfclose(e->e_dfp, "sendenvelope", e->e_df); 3830e484fe5Seric e->e_dfp = NULL; 3840e484fe5Seric e->e_id = e->e_df = NULL; 3859f9b003eSeric 3869f9b003eSeric /* catch intermediate zombie */ 3879f9b003eSeric (void) waitfor(pid); 388c1ac89b1Seric return; 389c1ac89b1Seric } 390c1ac89b1Seric 391c1ac89b1Seric /* double fork to avoid zombies */ 3929f9b003eSeric pid = fork(); 3939f9b003eSeric if (pid > 0) 394c1ac89b1Seric exit(EX_OK); 395c1ac89b1Seric 396c1ac89b1Seric /* be sure we are immune from the terminal */ 3977880f3e4Seric disconnect(1, e); 398c1ac89b1Seric 3999f9b003eSeric /* prevent parent from waiting if there was an error */ 4009f9b003eSeric if (pid < 0) 4019f9b003eSeric { 4029f9b003eSeric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 4039f9b003eSeric finis(); 4049f9b003eSeric } 4059f9b003eSeric 406c1ac89b1Seric /* 407c1ac89b1Seric ** Close any cached connections. 408c1ac89b1Seric ** 409c1ac89b1Seric ** We don't send the QUIT protocol because the parent 410c1ac89b1Seric ** still knows about the connection. 411c1ac89b1Seric ** 412c1ac89b1Seric ** This should only happen when delivering an error 413c1ac89b1Seric ** message. 414c1ac89b1Seric */ 415c1ac89b1Seric 416c1ac89b1Seric mci_flush(FALSE, NULL); 417c1ac89b1Seric 4186b2765c6Seric # endif /* HASFLOCK */ 4196b2765c6Seric 420c1ac89b1Seric break; 421c1ac89b1Seric } 422c1ac89b1Seric 423c1ac89b1Seric /* 4249c9e68d9Seric ** Run through the list and send everything. 4255288e21aSeric ** 4265288e21aSeric ** Set EF_GLOBALERRS so that error messages during delivery 4275288e21aSeric ** result in returned mail. 4289c9e68d9Seric */ 4299c9e68d9Seric 4309c9e68d9Seric e->e_nsent = 0; 4315288e21aSeric e->e_flags |= EF_GLOBALERRS; 432faad2b16Seric 433faad2b16Seric /* now run through the queue */ 4349c9e68d9Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 4359c9e68d9Seric { 436fdc75a0fSeric #ifdef XDEBUG 437fdc75a0fSeric char wbuf[MAXNAME + 20]; 438fdc75a0fSeric 439fdc75a0fSeric (void) sprintf(wbuf, "sendall(%s)", q->q_paddr); 440fdc75a0fSeric checkfd012(wbuf); 441fdc75a0fSeric #endif 4429c9e68d9Seric if (mode == SM_VERIFY) 4439c9e68d9Seric { 4449c9e68d9Seric e->e_to = q->q_paddr; 4459c9e68d9Seric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4468dfca105Seric { 447fafe46e1Seric if (q->q_host != NULL && q->q_host[0] != '\0') 4488dfca105Seric message("deliverable: mailer %s, host %s, user %s", 4498dfca105Seric q->q_mailer->m_name, 4508dfca105Seric q->q_host, 4518dfca105Seric q->q_user); 452fafe46e1Seric else 453fafe46e1Seric message("deliverable: mailer %s, user %s", 454fafe46e1Seric q->q_mailer->m_name, 455fafe46e1Seric q->q_user); 4568dfca105Seric } 4579c9e68d9Seric } 4589c9e68d9Seric else if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4599c9e68d9Seric { 4609c9e68d9Seric # ifdef QUEUE 4619c9e68d9Seric /* 4629c9e68d9Seric ** Checkpoint the send list every few addresses 4639c9e68d9Seric */ 4649c9e68d9Seric 4659c9e68d9Seric if (e->e_nsent >= CheckpointInterval) 4669c9e68d9Seric { 4679c9e68d9Seric queueup(e, TRUE, FALSE); 4689c9e68d9Seric e->e_nsent = 0; 4699c9e68d9Seric } 4709c9e68d9Seric # endif /* QUEUE */ 4719c9e68d9Seric (void) deliver(e, q); 4729c9e68d9Seric } 4739c9e68d9Seric } 4749c9e68d9Seric Verbose = oldverbose; 4759c9e68d9Seric 476fdc75a0fSeric #ifdef XDEBUG 477fdc75a0fSeric checkfd012("end of sendenvelope"); 478fdc75a0fSeric #endif 479fdc75a0fSeric 4809c9e68d9Seric if (mode == SM_FORK) 4819c9e68d9Seric finis(); 4829c9e68d9Seric } 4839c9e68d9Seric /* 4849c9e68d9Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 4859c9e68d9Seric ** 4869c9e68d9Seric ** This MUST be a macro, since after a vfork we are running 4879c9e68d9Seric ** two processes on the same stack!!! 4889c9e68d9Seric ** 4899c9e68d9Seric ** Parameters: 4909c9e68d9Seric ** none. 4919c9e68d9Seric ** 4929c9e68d9Seric ** Returns: 4939c9e68d9Seric ** From a macro??? You've got to be kidding! 4949c9e68d9Seric ** 4959c9e68d9Seric ** Side Effects: 4969c9e68d9Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 4979c9e68d9Seric ** pid of child in parent, zero in child. 4989c9e68d9Seric ** -1 on unrecoverable error. 4999c9e68d9Seric ** 5009c9e68d9Seric ** Notes: 5019c9e68d9Seric ** I'm awfully sorry this looks so awful. That's 5029c9e68d9Seric ** vfork for you..... 5039c9e68d9Seric */ 5049c9e68d9Seric 5059c9e68d9Seric # define NFORKTRIES 5 5069c9e68d9Seric 5079c9e68d9Seric # ifndef FORK 5089c9e68d9Seric # define FORK fork 5099c9e68d9Seric # endif 5109c9e68d9Seric 5119c9e68d9Seric # define DOFORK(fORKfN) \ 5129c9e68d9Seric {\ 5139c9e68d9Seric register int i;\ 5149c9e68d9Seric \ 5159c9e68d9Seric for (i = NFORKTRIES; --i >= 0; )\ 5169c9e68d9Seric {\ 5179c9e68d9Seric pid = fORKfN();\ 5189c9e68d9Seric if (pid >= 0)\ 5199c9e68d9Seric break;\ 5209c9e68d9Seric if (i > 0)\ 5219c9e68d9Seric sleep((unsigned) NFORKTRIES - i);\ 5229c9e68d9Seric }\ 5239c9e68d9Seric } 5249c9e68d9Seric /* 5259c9e68d9Seric ** DOFORK -- simple fork interface to DOFORK. 5269c9e68d9Seric ** 5279c9e68d9Seric ** Parameters: 5289c9e68d9Seric ** none. 5299c9e68d9Seric ** 5309c9e68d9Seric ** Returns: 5319c9e68d9Seric ** pid of child in parent. 5329c9e68d9Seric ** zero in child. 5339c9e68d9Seric ** -1 on error. 5349c9e68d9Seric ** 5359c9e68d9Seric ** Side Effects: 5369c9e68d9Seric ** returns twice, once in parent and once in child. 5379c9e68d9Seric */ 5389c9e68d9Seric 5399c9e68d9Seric dofork() 5409c9e68d9Seric { 5419c9e68d9Seric register int pid; 5429c9e68d9Seric 5439c9e68d9Seric DOFORK(fork); 5449c9e68d9Seric return (pid); 5459c9e68d9Seric } 5469c9e68d9Seric /* 54713bbc08cSeric ** DELIVER -- Deliver a message to a list of addresses. 54813bbc08cSeric ** 54913bbc08cSeric ** This routine delivers to everyone on the same host as the 55013bbc08cSeric ** user on the head of the list. It is clever about mailers 55113bbc08cSeric ** that don't handle multiple users. It is NOT guaranteed 55213bbc08cSeric ** that it will deliver to all these addresses however -- so 55313bbc08cSeric ** deliver should be called once for each address on the 55413bbc08cSeric ** list. 55525a99e2eSeric ** 55625a99e2eSeric ** Parameters: 557588cad61Seric ** e -- the envelope to deliver. 558c77d1c25Seric ** firstto -- head of the address list to deliver to. 55925a99e2eSeric ** 56025a99e2eSeric ** Returns: 56125a99e2eSeric ** zero -- successfully delivered. 56225a99e2eSeric ** else -- some failure, see ExitStat for more info. 56325a99e2eSeric ** 56425a99e2eSeric ** Side Effects: 56525a99e2eSeric ** The standard input is passed off to someone. 56625a99e2eSeric */ 56725a99e2eSeric 568588cad61Seric deliver(e, firstto) 569588cad61Seric register ENVELOPE *e; 570c77d1c25Seric ADDRESS *firstto; 57125a99e2eSeric { 57278442df3Seric char *host; /* host being sent to */ 57378442df3Seric char *user; /* user being sent to */ 57425a99e2eSeric char **pvp; 5755dfc646bSeric register char **mvp; 57625a99e2eSeric register char *p; 577588cad61Seric register MAILER *m; /* mailer for this recipient */ 5786259796dSeric ADDRESS *ctladdr; 579b31e7f2bSeric register MCI *mci; 580c77d1c25Seric register ADDRESS *to = firstto; 581c579ef51Seric bool clever = FALSE; /* running user smtp to this mailer */ 582772e6e50Seric ADDRESS *tochain = NULL; /* chain of users in this mailer call */ 583911693bfSbostic int rcode; /* response code */ 584e103b48fSeric char *firstsig; /* signature of firstto */ 5859c9e68d9Seric int pid; 5869c9e68d9Seric char *curhost; 5879c9e68d9Seric int mpvect[2]; 5889c9e68d9Seric int rpvect[2]; 589ee6bf8dfSeric char *pv[MAXPV+1]; 590579ef0ddSeric char tobuf[TOBUFSIZE]; /* text line of to people */ 591ee6bf8dfSeric char buf[MAXNAME]; 592c23ed322Seric char rpathbuf[MAXNAME]; /* translated return path */ 593fabb3bd4Seric extern int checkcompat(); 59425a99e2eSeric 59535490626Seric errno = 0; 596ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags)) 5975dfc646bSeric return (0); 59825a99e2eSeric 5999d4a8008Seric #if NAMED_BIND 600912a731aSbostic /* unless interactive, try twice, over a minute */ 6018d19a23dSeric if (OpMode == MD_DAEMON || OpMode == MD_SMTP) 6028d19a23dSeric { 603912a731aSbostic _res.retrans = 30; 604912a731aSbostic _res.retry = 2; 605912a731aSbostic } 606d4bd8f0eSbostic #endif 607912a731aSbostic 60851552439Seric m = to->q_mailer; 60951552439Seric host = to->q_host; 610c9be6216Seric CurEnv = e; /* just in case */ 6114384d521Seric e->e_statmsg = NULL; 612df106f0bSeric SmtpError[0] = '\0'; 61351552439Seric 6146ef48975Seric if (tTd(10, 1)) 615562ec147Seric printf("\n--deliver, id=%s, mailer=%s, host=`%s', first user=`%s'\n", 616562ec147Seric e->e_id, m->m_name, host, to->q_user); 617ab81ee53Seric if (tTd(10, 100)) 618ab81ee53Seric printopenfds(FALSE); 619f3dbc832Seric 620f3dbc832Seric /* 621f3dbc832Seric ** If this mailer is expensive, and if we don't want to make 622f3dbc832Seric ** connections now, just mark these addresses and return. 623f3dbc832Seric ** This is useful if we want to batch connections to 624f3dbc832Seric ** reduce load. This will cause the messages to be 625f3dbc832Seric ** queued up, and a daemon will come along to send the 626f3dbc832Seric ** messages later. 627f3dbc832Seric ** This should be on a per-mailer basis. 628f3dbc832Seric */ 629f3dbc832Seric 63079aa5155Seric if (NoConnect && bitnset(M_EXPENSIVE, m->m_flags) && !Verbose) 631f3dbc832Seric { 632f3dbc832Seric for (; to != NULL; to = to->q_next) 633f4560e80Seric { 634ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 635c6e18ac5Seric to->q_mailer != m) 636f4560e80Seric continue; 637268a25e1Seric to->q_flags |= QQUEUEUP; 638588cad61Seric e->e_to = to->q_paddr; 639de44caefSeric define('h', NULL, e); 64008b25121Seric message("queued"); 6412f624c86Seric if (LogLevel > 8) 6424dee0003Seric logdelivery(m, NULL, "queued", NULL, e); 643f4560e80Seric } 644588cad61Seric e->e_to = NULL; 645f3dbc832Seric return (0); 646f3dbc832Seric } 647f3dbc832Seric 64825a99e2eSeric /* 6495dfc646bSeric ** Do initial argv setup. 6505dfc646bSeric ** Insert the mailer name. Notice that $x expansion is 6515dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 6525dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 6535dfc646bSeric ** code does not check for 'pv' overflow; this places a 6545dfc646bSeric ** manifest lower limit of 4 for MAXPV. 6553bea8136Seric ** The from address rewrite is expected to make 6563bea8136Seric ** the address relative to the other end. 6575dfc646bSeric */ 6585dfc646bSeric 65978442df3Seric /* rewrite from address, using rewriting rules */ 660efe54562Seric rcode = EX_OK; 661efe54562Seric (void) strcpy(rpathbuf, remotename(e->e_from.q_paddr, m, 662efe54562Seric RF_SENDERADDR|RF_CANONICAL, 663efe54562Seric &rcode, e)); 664ee4b0922Seric define('g', rpathbuf, e); /* translated return path */ 665588cad61Seric define('h', host, e); /* to host */ 6665dfc646bSeric Errors = 0; 6675dfc646bSeric pvp = pv; 6685dfc646bSeric *pvp++ = m->m_argv[0]; 6695dfc646bSeric 6705dfc646bSeric /* insert -f or -r flag as appropriate */ 67157fc6f17Seric if (FromFlag && (bitnset(M_FOPT, m->m_flags) || bitnset(M_ROPT, m->m_flags))) 6725dfc646bSeric { 67357fc6f17Seric if (bitnset(M_FOPT, m->m_flags)) 6745dfc646bSeric *pvp++ = "-f"; 6755dfc646bSeric else 6765dfc646bSeric *pvp++ = "-r"; 677c23ed322Seric *pvp++ = newstr(rpathbuf); 6785dfc646bSeric } 6795dfc646bSeric 6805dfc646bSeric /* 6815dfc646bSeric ** Append the other fixed parts of the argv. These run 6825dfc646bSeric ** up to the first entry containing "$u". There can only 6835dfc646bSeric ** be one of these, and there are only a few more slots 6845dfc646bSeric ** in the pv after it. 6855dfc646bSeric */ 6865dfc646bSeric 6875dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 6885dfc646bSeric { 6892bc47524Seric /* can't use strchr here because of sign extension problems */ 6902bc47524Seric while (*p != '\0') 6912bc47524Seric { 6922bc47524Seric if ((*p++ & 0377) == MACROEXPAND) 6932bc47524Seric { 6942bc47524Seric if (*p == 'u') 6955dfc646bSeric break; 6962bc47524Seric } 6972bc47524Seric } 6982bc47524Seric 6992bc47524Seric if (*p != '\0') 7005dfc646bSeric break; 7015dfc646bSeric 7025dfc646bSeric /* this entry is safe -- go ahead and process it */ 703588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 7045dfc646bSeric *pvp++ = newstr(buf); 7055dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 7065dfc646bSeric { 70708b25121Seric syserr("554 Too many parameters to %s before $u", pv[0]); 7085dfc646bSeric return (-1); 7095dfc646bSeric } 7105dfc646bSeric } 711c579ef51Seric 71233db8731Seric /* 71333db8731Seric ** If we have no substitution for the user name in the argument 71433db8731Seric ** list, we know that we must supply the names otherwise -- and 71533db8731Seric ** SMTP is the answer!! 71633db8731Seric */ 71733db8731Seric 7185dfc646bSeric if (*mvp == NULL) 719c579ef51Seric { 720c579ef51Seric /* running SMTP */ 7212c7e1b8dSeric # ifdef SMTP 722c579ef51Seric clever = TRUE; 723c579ef51Seric *pvp = NULL; 7246c2c3107Seric # else /* SMTP */ 72533db8731Seric /* oops! we don't implement SMTP */ 726df106f0bSeric syserr("554 SMTP style mailer not implemented"); 7272c7e1b8dSeric return (EX_SOFTWARE); 7286c2c3107Seric # endif /* SMTP */ 729c579ef51Seric } 7305dfc646bSeric 7315dfc646bSeric /* 7325dfc646bSeric ** At this point *mvp points to the argument with $u. We 7335dfc646bSeric ** run through our address list and append all the addresses 7345dfc646bSeric ** we can. If we run out of space, do not fret! We can 7355dfc646bSeric ** always send another copy later. 7365dfc646bSeric */ 7375dfc646bSeric 7385dfc646bSeric tobuf[0] = '\0'; 739588cad61Seric e->e_to = tobuf; 7406259796dSeric ctladdr = NULL; 741e103b48fSeric firstsig = hostsignature(firstto->q_mailer, firstto->q_host, e); 7425dfc646bSeric for (; to != NULL; to = to->q_next) 7435dfc646bSeric { 7445dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 74557fc6f17Seric if (tobuf[0] != '\0' && !bitnset(M_MUSER, m->m_flags)) 7465dfc646bSeric break; 7475dfc646bSeric 7485dfc646bSeric /* if already sent or not for this host, don't send */ 749ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 750e103b48fSeric to->q_mailer != firstto->q_mailer || 751e103b48fSeric strcmp(hostsignature(to->q_mailer, to->q_host, e), firstsig) != 0) 7525dfc646bSeric continue; 7536259796dSeric 7544b22ea87Seric /* avoid overflowing tobuf */ 755aa50a568Sbostic if (sizeof tobuf < (strlen(to->q_paddr) + strlen(tobuf) + 2)) 7564b22ea87Seric break; 7574b22ea87Seric 7586ef48975Seric if (tTd(10, 1)) 759772e6e50Seric { 760772e6e50Seric printf("\nsend to "); 761772e6e50Seric printaddr(to, FALSE); 762772e6e50Seric } 763772e6e50Seric 7646259796dSeric /* compute effective uid/gid when sending */ 765960e665aSeric /* XXX perhaps this should be to->q_mailer != LocalMailer ?? */ 766960e665aSeric /* XXX perhaps it should be a mailer flag? */ 767960e665aSeric if (to->q_mailer == ProgMailer || to->q_mailer == FileMailer) 7686259796dSeric ctladdr = getctladdr(to); 7696259796dSeric 7705dfc646bSeric user = to->q_user; 771588cad61Seric e->e_to = to->q_paddr; 77275f1ade9Seric if (tTd(10, 5)) 77375f1ade9Seric { 77475f1ade9Seric printf("deliver: QDONTSEND "); 77575f1ade9Seric printaddr(to, FALSE); 77675f1ade9Seric } 777ee4b0922Seric to->q_flags |= QDONTSEND; 7785dfc646bSeric 7795dfc646bSeric /* 7805dfc646bSeric ** Check to see that these people are allowed to 7815dfc646bSeric ** talk to each other. 7822a6e0786Seric */ 7832a6e0786Seric 78469582d2fSeric if (m->m_maxsize != 0 && e->e_msgsize > m->m_maxsize) 78569582d2fSeric { 78669582d2fSeric NoReturn = TRUE; 78708b25121Seric usrerr("552 Message is too large; %ld bytes max", m->m_maxsize); 7884dee0003Seric giveresponse(EX_UNAVAILABLE, m, NULL, ctladdr, e); 78969582d2fSeric continue; 79069582d2fSeric } 791fabb3bd4Seric rcode = checkcompat(to, e); 7921793c9c5Seric if (rcode != EX_OK) 7935dfc646bSeric { 7941000c37aSeric markfailure(e, to, rcode); 7954dee0003Seric giveresponse(rcode, m, NULL, ctladdr, e); 7965dfc646bSeric continue; 7975dfc646bSeric } 7982a6e0786Seric 7992a6e0786Seric /* 8009ec9501bSeric ** Strip quote bits from names if the mailer is dumb 8019ec9501bSeric ** about them. 80225a99e2eSeric */ 80325a99e2eSeric 80457fc6f17Seric if (bitnset(M_STRIPQ, m->m_flags)) 80525a99e2eSeric { 8061d8f1806Seric stripquotes(user); 8071d8f1806Seric stripquotes(host); 80825a99e2eSeric } 80925a99e2eSeric 810cdb828c5Seric /* hack attack -- delivermail compatibility */ 811cdb828c5Seric if (m == ProgMailer && *user == '|') 812cdb828c5Seric user++; 813cdb828c5Seric 81425a99e2eSeric /* 8153efaed6eSeric ** If an error message has already been given, don't 8163efaed6eSeric ** bother to send to this address. 8173efaed6eSeric ** 8183efaed6eSeric ** >>>>>>>>>> This clause assumes that the local mailer 8193efaed6eSeric ** >> NOTE >> cannot do any further aliasing; that 8203efaed6eSeric ** >>>>>>>>>> function is subsumed by sendmail. 8213efaed6eSeric */ 8223efaed6eSeric 8236cae517dSeric if (bitset(QBADADDR|QQUEUEUP, to->q_flags)) 8243efaed6eSeric continue; 8253efaed6eSeric 826f2fec898Seric /* save statistics.... */ 827588cad61Seric markstats(e, to); 828f2fec898Seric 8293efaed6eSeric /* 83025a99e2eSeric ** See if this user name is "special". 83125a99e2eSeric ** If the user name has a slash in it, assume that this 83251552439Seric ** is a file -- send it off without further ado. Note 83351552439Seric ** that this type of addresses is not processed along 83451552439Seric ** with the others, so we fudge on the To person. 83525a99e2eSeric */ 83625a99e2eSeric 8372c017f8dSeric if (m == FileMailer) 83825a99e2eSeric { 83903463a75Seric rcode = mailfile(user, ctladdr, e); 84003463a75Seric giveresponse(rcode, m, NULL, ctladdr, e); 841dde5acadSeric if (rcode == EX_OK) 842dde5acadSeric to->q_flags |= QSENT; 8435dfc646bSeric continue; 84425a99e2eSeric } 84525a99e2eSeric 84613bbc08cSeric /* 84713bbc08cSeric ** Address is verified -- add this user to mailer 84813bbc08cSeric ** argv, and add it to the print list of recipients. 84913bbc08cSeric */ 85013bbc08cSeric 851508daeccSeric /* link together the chain of recipients */ 852508daeccSeric to->q_tchain = tochain; 853508daeccSeric tochain = to; 854508daeccSeric 8555dfc646bSeric /* create list of users for error messages */ 856db8841e9Seric (void) strcat(tobuf, ","); 857db8841e9Seric (void) strcat(tobuf, to->q_paddr); 858588cad61Seric define('u', user, e); /* to user */ 859b6f89e6eSeric p = to->q_home; 860b6f89e6eSeric if (p == NULL && ctladdr != NULL) 861b6f89e6eSeric p = ctladdr->q_home; 862b6f89e6eSeric define('z', p, e); /* user's home */ 8635dfc646bSeric 864c579ef51Seric /* 865508daeccSeric ** Expand out this user into argument list. 866c579ef51Seric */ 867c579ef51Seric 868508daeccSeric if (!clever) 869c579ef51Seric { 870588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8715dfc646bSeric *pvp++ = newstr(buf); 8725dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 8735dfc646bSeric { 8745dfc646bSeric /* allow some space for trailing parms */ 8755dfc646bSeric break; 8765dfc646bSeric } 8775dfc646bSeric } 878c579ef51Seric } 8795dfc646bSeric 880145b49b1Seric /* see if any addresses still exist */ 881145b49b1Seric if (tobuf[0] == '\0') 882c579ef51Seric { 883588cad61Seric define('g', (char *) NULL, e); 884145b49b1Seric return (0); 885c579ef51Seric } 886145b49b1Seric 8875dfc646bSeric /* print out messages as full list */ 88863780dbdSeric e->e_to = tobuf + 1; 8895dfc646bSeric 8905dfc646bSeric /* 8915dfc646bSeric ** Fill out any parameters after the $u parameter. 8925dfc646bSeric */ 8935dfc646bSeric 894c579ef51Seric while (!clever && *++mvp != NULL) 8955dfc646bSeric { 896588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8975dfc646bSeric *pvp++ = newstr(buf); 8985dfc646bSeric if (pvp >= &pv[MAXPV]) 89908b25121Seric syserr("554 deliver: pv overflow after $u for %s", pv[0]); 9005dfc646bSeric } 9015dfc646bSeric *pvp++ = NULL; 9025dfc646bSeric 90325a99e2eSeric /* 90425a99e2eSeric ** Call the mailer. 9056328bdf7Seric ** The argument vector gets built, pipes 90625a99e2eSeric ** are created as necessary, and we fork & exec as 9076328bdf7Seric ** appropriate. 908c579ef51Seric ** If we are running SMTP, we just need to clean up. 90925a99e2eSeric */ 91025a99e2eSeric 911960e665aSeric /*XXX this seems a bit wierd */ 9124899f6b5Seric if (ctladdr == NULL && m != ProgMailer && 9134899f6b5Seric bitset(QGOODUID, e->e_from.q_flags)) 914960e665aSeric ctladdr = &e->e_from; 915960e665aSeric 9169d4a8008Seric #if NAMED_BIND 9172bcc6d2dSeric if (ConfigLevel < 2) 918912a731aSbostic _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 919134746fbSeric #endif 9209c9e68d9Seric 9219c9e68d9Seric if (tTd(11, 1)) 922134746fbSeric { 9239c9e68d9Seric printf("openmailer:"); 9249c9e68d9Seric printav(pv); 9259c9e68d9Seric } 9269c9e68d9Seric errno = 0; 9279c9e68d9Seric 9289c9e68d9Seric CurHostName = m->m_mailer; 9299c9e68d9Seric 9309c9e68d9Seric /* 9319c9e68d9Seric ** Deal with the special case of mail handled through an IPC 9329c9e68d9Seric ** connection. 9339c9e68d9Seric ** In this case we don't actually fork. We must be 9349c9e68d9Seric ** running SMTP for this to work. We will return a 9359c9e68d9Seric ** zero pid to indicate that we are running IPC. 9369c9e68d9Seric ** We also handle a debug version that just talks to stdin/out. 9379c9e68d9Seric */ 9389c9e68d9Seric 9399c9e68d9Seric curhost = NULL; 940c931b82bSeric SmtpPhase = NULL; 941df106f0bSeric mci = NULL; 9429c9e68d9Seric 9437febfd66Seric #ifdef XDEBUG 9447febfd66Seric { 9457febfd66Seric char wbuf[MAXLINE]; 9467febfd66Seric 9477febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 9487febfd66Seric sprintf(wbuf, "%s... openmailer(%s)", e->e_to, m->m_name); 9497febfd66Seric checkfd012(wbuf); 9507febfd66Seric } 9517febfd66Seric #endif 9527febfd66Seric 9539c9e68d9Seric /* check for Local Person Communication -- not for mortals!!! */ 9549c9e68d9Seric if (strcmp(m->m_mailer, "[LPC]") == 0) 9559c9e68d9Seric { 9569c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 9579c9e68d9Seric bzero((char *) mci, sizeof *mci); 9589c9e68d9Seric mci->mci_in = stdin; 9599c9e68d9Seric mci->mci_out = stdout; 9609c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 9619c9e68d9Seric mci->mci_mailer = m; 9629c9e68d9Seric } 9639c9e68d9Seric else if (strcmp(m->m_mailer, "[IPC]") == 0 || 9649c9e68d9Seric strcmp(m->m_mailer, "[TCP]") == 0) 9659c9e68d9Seric { 9669c9e68d9Seric #ifdef DAEMON 9679c9e68d9Seric register int i; 9689c9e68d9Seric register u_short port; 9699c9e68d9Seric 970a5d44642Seric if (pv[0] == NULL || pv[1] == NULL || pv[1][0] == '\0') 971a5d44642Seric { 972a5d44642Seric syserr("null host name for %s mailer", m->m_mailer); 973a5d44642Seric rcode = EX_CONFIG; 974a5d44642Seric goto give_up; 975a5d44642Seric } 976a5d44642Seric 9779c9e68d9Seric CurHostName = pv[1]; 9789c9e68d9Seric curhost = hostsignature(m, pv[1], e); 9799c9e68d9Seric 9809c9e68d9Seric if (curhost == NULL || curhost[0] == '\0') 9819c9e68d9Seric { 982a5d44642Seric syserr("null host signature for %s", pv[1]); 983845e533cSeric rcode = EX_OSERR; 984b31e7f2bSeric goto give_up; 985b31e7f2bSeric } 9869c9e68d9Seric 9879c9e68d9Seric if (!clever) 9889c9e68d9Seric { 9899c9e68d9Seric syserr("554 non-clever IPC"); 990df106f0bSeric rcode = EX_CONFIG; 9919c9e68d9Seric goto give_up; 9929c9e68d9Seric } 9939c9e68d9Seric if (pv[2] != NULL) 9949c9e68d9Seric port = atoi(pv[2]); 9959c9e68d9Seric else 9969c9e68d9Seric port = 0; 9979c9e68d9Seric tryhost: 9989c9e68d9Seric while (*curhost != '\0') 9999c9e68d9Seric { 10009c9e68d9Seric register char *p; 10019c9e68d9Seric static char hostbuf[MAXNAME]; 10029c9e68d9Seric 10039c9e68d9Seric /* pull the next host from the signature */ 10049c9e68d9Seric p = strchr(curhost, ':'); 10059c9e68d9Seric if (p == NULL) 10069c9e68d9Seric p = &curhost[strlen(curhost)]; 1007df106f0bSeric if (p == curhost) 1008df106f0bSeric { 1009df106f0bSeric syserr("deliver: null host name in signature"); 10108087428aSeric curhost++; 1011df106f0bSeric continue; 1012df106f0bSeric } 10139c9e68d9Seric strncpy(hostbuf, curhost, p - curhost); 10149c9e68d9Seric hostbuf[p - curhost] = '\0'; 10159c9e68d9Seric if (*p != '\0') 10169c9e68d9Seric p++; 10179c9e68d9Seric curhost = p; 10189c9e68d9Seric 10199c9e68d9Seric /* see if we already know that this host is fried */ 10209c9e68d9Seric CurHostName = hostbuf; 10219c9e68d9Seric mci = mci_get(hostbuf, m); 10229c9e68d9Seric if (mci->mci_state != MCIS_CLOSED) 10239c9e68d9Seric { 10249c9e68d9Seric if (tTd(11, 1)) 10259c9e68d9Seric { 10269c9e68d9Seric printf("openmailer: "); 10274052916eSeric mci_dump(mci, FALSE); 10289c9e68d9Seric } 10299c9e68d9Seric CurHostName = mci->mci_host; 10309c9e68d9Seric break; 10319c9e68d9Seric } 10329c9e68d9Seric mci->mci_mailer = m; 10339c9e68d9Seric if (mci->mci_exitstat != EX_OK) 10349c9e68d9Seric continue; 10359c9e68d9Seric 10369c9e68d9Seric /* try the connection */ 10379c9e68d9Seric setproctitle("%s %s: %s", e->e_id, hostbuf, "user open"); 10389c9e68d9Seric message("Connecting to %s (%s)...", 10399c9e68d9Seric hostbuf, m->m_name); 10409c9e68d9Seric i = makeconnection(hostbuf, port, mci, 10419c9e68d9Seric bitnset(M_SECURE_PORT, m->m_flags)); 10429c9e68d9Seric mci->mci_exitstat = i; 10439c9e68d9Seric mci->mci_errno = errno; 10449d4a8008Seric #if NAMED_BIND 1045f170942cSeric mci->mci_herrno = h_errno; 1046f170942cSeric #endif 10479c9e68d9Seric if (i == EX_OK) 10489c9e68d9Seric { 10499c9e68d9Seric mci->mci_state = MCIS_OPENING; 10509c9e68d9Seric mci_cache(mci); 1051f170942cSeric if (TrafficLogFile != NULL) 1052f170942cSeric fprintf(TrafficLogFile, "%05d == CONNECT %s\n", 1053f170942cSeric getpid(), hostbuf); 10549c9e68d9Seric break; 10559c9e68d9Seric } 10569c9e68d9Seric else if (tTd(11, 1)) 10579c9e68d9Seric printf("openmailer: makeconnection => stat=%d, errno=%d\n", 10589c9e68d9Seric i, errno); 10599c9e68d9Seric 10609c9e68d9Seric /* enter status of this host */ 10619c9e68d9Seric setstat(i); 1062df106f0bSeric 1063df106f0bSeric /* should print some message here for -v mode */ 1064df106f0bSeric } 1065df106f0bSeric if (mci == NULL) 1066df106f0bSeric { 1067df106f0bSeric syserr("deliver: no host name"); 1068df106f0bSeric rcode = EX_OSERR; 1069df106f0bSeric goto give_up; 10709c9e68d9Seric } 10719c9e68d9Seric mci->mci_pid = 0; 10729c9e68d9Seric #else /* no DAEMON */ 10739c9e68d9Seric syserr("554 openmailer: no IPC"); 10749c9e68d9Seric if (tTd(11, 1)) 10759c9e68d9Seric printf("openmailer: NULL\n"); 1076df106f0bSeric rcode = EX_UNAVAILABLE; 1077df106f0bSeric goto give_up; 10789c9e68d9Seric #endif /* DAEMON */ 10799c9e68d9Seric } 10809c9e68d9Seric else 10819c9e68d9Seric { 1082f170942cSeric if (TrafficLogFile != NULL) 10830e3bfef5Seric { 1084f170942cSeric char **av; 1085f170942cSeric 1086f170942cSeric fprintf(TrafficLogFile, "%05d === EXEC", getpid()); 1087f170942cSeric for (av = pv; *av != NULL; av++) 1088f170942cSeric fprintf(TrafficLogFile, " %s", *av); 1089f170942cSeric fprintf(TrafficLogFile, "\n"); 10906fe8c3bcSeric } 10916fe8c3bcSeric 10929c9e68d9Seric /* create a pipe to shove the mail through */ 10939c9e68d9Seric if (pipe(mpvect) < 0) 10949c9e68d9Seric { 10950e3bfef5Seric syserr("%s... openmailer(%s): pipe (to mailer)", 10960e3bfef5Seric e->e_to, m->m_name); 10979c9e68d9Seric if (tTd(11, 1)) 10989c9e68d9Seric printf("openmailer: NULL\n"); 10999c9e68d9Seric rcode = EX_OSERR; 11009c9e68d9Seric goto give_up; 11019c9e68d9Seric } 11029c9e68d9Seric 11039c9e68d9Seric /* if this mailer speaks smtp, create a return pipe */ 11049c9e68d9Seric if (clever && pipe(rpvect) < 0) 11059c9e68d9Seric { 11060e3bfef5Seric syserr("%s... openmailer(%s): pipe (from mailer)", 11070e3bfef5Seric e->e_to, m->m_name); 11089c9e68d9Seric (void) close(mpvect[0]); 11099c9e68d9Seric (void) close(mpvect[1]); 11109c9e68d9Seric if (tTd(11, 1)) 11119c9e68d9Seric printf("openmailer: NULL\n"); 11129c9e68d9Seric rcode = EX_OSERR; 11139c9e68d9Seric goto give_up; 11149c9e68d9Seric } 11159c9e68d9Seric 11169c9e68d9Seric /* 11179c9e68d9Seric ** Actually fork the mailer process. 11189c9e68d9Seric ** DOFORK is clever about retrying. 11199c9e68d9Seric ** 11209c9e68d9Seric ** Dispose of SIGCHLD signal catchers that may be laying 11219c9e68d9Seric ** around so that endmail will get it. 11229c9e68d9Seric */ 11239c9e68d9Seric 11249c9e68d9Seric if (e->e_xfp != NULL) 11259c9e68d9Seric (void) fflush(e->e_xfp); /* for debugging */ 11269c9e68d9Seric (void) fflush(stdout); 11279c9e68d9Seric # ifdef SIGCHLD 11282b9178d3Seric (void) setsignal(SIGCHLD, SIG_DFL); 11299c9e68d9Seric # endif /* SIGCHLD */ 11309c9e68d9Seric DOFORK(FORK); 11319c9e68d9Seric /* pid is set by DOFORK */ 11329c9e68d9Seric if (pid < 0) 11339c9e68d9Seric { 11349c9e68d9Seric /* failure */ 11350e3bfef5Seric syserr("%s... openmailer(%s): cannot fork", 11360e3bfef5Seric e->e_to, m->m_name); 11379c9e68d9Seric (void) close(mpvect[0]); 11389c9e68d9Seric (void) close(mpvect[1]); 11399c9e68d9Seric if (clever) 11409c9e68d9Seric { 11419c9e68d9Seric (void) close(rpvect[0]); 11429c9e68d9Seric (void) close(rpvect[1]); 11439c9e68d9Seric } 11449c9e68d9Seric if (tTd(11, 1)) 11459c9e68d9Seric printf("openmailer: NULL\n"); 11469c9e68d9Seric rcode = EX_OSERR; 11479c9e68d9Seric goto give_up; 11489c9e68d9Seric } 11499c9e68d9Seric else if (pid == 0) 11509c9e68d9Seric { 11519c9e68d9Seric int i; 11529c9e68d9Seric int saveerrno; 11539c9e68d9Seric char **ep; 11549c9e68d9Seric char *env[MAXUSERENVIRON]; 11559c9e68d9Seric extern char **environ; 11569c9e68d9Seric extern int DtableSize; 11579c9e68d9Seric 11589c9e68d9Seric /* child -- set up input & exec mailer */ 11592b9178d3Seric (void) setsignal(SIGINT, SIG_IGN); 11602b9178d3Seric (void) setsignal(SIGHUP, SIG_IGN); 11612b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 11629c9e68d9Seric 116344f2317fSeric /* reset user and group */ 116444f2317fSeric if (!bitnset(M_RESTR, m->m_flags)) 116544f2317fSeric { 116644f2317fSeric if (ctladdr == NULL || ctladdr->q_uid == 0) 116744f2317fSeric { 116844f2317fSeric (void) initgroups(DefUser, DefGid); 1169fc354902Seric (void) setgid(DefGid); 117044f2317fSeric (void) setuid(DefUid); 117144f2317fSeric } 117244f2317fSeric else 117344f2317fSeric { 117444f2317fSeric (void) initgroups(ctladdr->q_ruser? 117544f2317fSeric ctladdr->q_ruser: ctladdr->q_user, 117644f2317fSeric ctladdr->q_gid); 117751cfe111Seric (void) setgid(ctladdr->q_gid); 117844f2317fSeric (void) setuid(ctladdr->q_uid); 117944f2317fSeric } 118044f2317fSeric } 118144f2317fSeric 118244f2317fSeric if (tTd(11, 2)) 118344f2317fSeric printf("openmailer: running as r/euid=%d/%d\n", 118444f2317fSeric getuid(), geteuid()); 118544f2317fSeric 1186b986f6aaSeric /* move into some "safe" directory */ 1187b986f6aaSeric if (m->m_execdir != NULL) 1188b986f6aaSeric { 1189b986f6aaSeric char *p, *q; 1190b986f6aaSeric char buf[MAXLINE]; 1191b986f6aaSeric 1192b986f6aaSeric for (p = m->m_execdir; p != NULL; p = q) 1193b986f6aaSeric { 1194b986f6aaSeric q = strchr(p, ':'); 1195b986f6aaSeric if (q != NULL) 1196b986f6aaSeric *q = '\0'; 1197b986f6aaSeric expand(p, buf, &buf[sizeof buf] - 1, e); 1198b986f6aaSeric if (q != NULL) 1199b986f6aaSeric *q++ = ':'; 1200b986f6aaSeric if (tTd(11, 20)) 1201b986f6aaSeric printf("openmailer: trydir %s\n", 1202b986f6aaSeric buf); 1203b986f6aaSeric if (buf[0] != '\0' && chdir(buf) >= 0) 1204b986f6aaSeric break; 1205b986f6aaSeric } 1206b986f6aaSeric } 1207b986f6aaSeric 12089c9e68d9Seric /* arrange to filter std & diag output of command */ 12099c9e68d9Seric if (clever) 12109c9e68d9Seric { 12119c9e68d9Seric (void) close(rpvect[0]); 12126fe8c3bcSeric if (dup2(rpvect[1], STDOUT_FILENO) < 0) 12136fe8c3bcSeric { 12140e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdout", 12150e3bfef5Seric e->e_to, m->m_name, rpvect[1]); 12166fe8c3bcSeric _exit(EX_OSERR); 12176fe8c3bcSeric } 12189c9e68d9Seric (void) close(rpvect[1]); 12199c9e68d9Seric } 12208b40b0a4Seric else if (OpMode == MD_SMTP || OpMode == MD_DAEMON || 12218b40b0a4Seric HoldErrs || DisConnected) 12229c9e68d9Seric { 12239c9e68d9Seric /* put mailer output in transcript */ 12246fe8c3bcSeric if (dup2(fileno(e->e_xfp), STDOUT_FILENO) < 0) 12256fe8c3bcSeric { 12260e3bfef5Seric syserr("%s... openmailer(%s): cannot dup xscript %d for stdout", 12270e3bfef5Seric e->e_to, m->m_name, 12286fe8c3bcSeric fileno(e->e_xfp)); 12296fe8c3bcSeric _exit(EX_OSERR); 12309c9e68d9Seric } 12316fe8c3bcSeric } 12326fe8c3bcSeric if (dup2(STDOUT_FILENO, STDERR_FILENO) < 0) 12336fe8c3bcSeric { 12340e3bfef5Seric syserr("%s... openmailer(%s): cannot dup stdout for stderr", 12350e3bfef5Seric e->e_to, m->m_name); 12366fe8c3bcSeric _exit(EX_OSERR); 12376fe8c3bcSeric } 12389c9e68d9Seric 12399c9e68d9Seric /* arrange to get standard input */ 12409c9e68d9Seric (void) close(mpvect[1]); 12419c9e68d9Seric if (dup2(mpvect[0], STDIN_FILENO) < 0) 12429c9e68d9Seric { 12430e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdin", 12440e3bfef5Seric e->e_to, m->m_name, mpvect[0]); 12459c9e68d9Seric _exit(EX_OSERR); 12469c9e68d9Seric } 12479c9e68d9Seric (void) close(mpvect[0]); 12489c9e68d9Seric 12499c9e68d9Seric /* arrange for all the files to be closed */ 12509c9e68d9Seric for (i = 3; i < DtableSize; i++) 12519c9e68d9Seric { 12529c9e68d9Seric register int j; 125344f2317fSeric 12549c9e68d9Seric if ((j = fcntl(i, F_GETFD, 0)) != -1) 12559c9e68d9Seric (void) fcntl(i, F_SETFD, j | 1); 12569c9e68d9Seric } 12579c9e68d9Seric 12589f9b003eSeric /* 12599f9b003eSeric ** Set up the mailer environment 12609f9b003eSeric ** TZ is timezone information. 12619f9b003eSeric ** SYSTYPE is Apollo software sys type (required). 12629f9b003eSeric ** ISP is Apollo hardware system type (required). 12639f9b003eSeric */ 12649f9b003eSeric 12659c9e68d9Seric i = 0; 12669c9e68d9Seric env[i++] = "AGENT=sendmail"; 12679c9e68d9Seric for (ep = environ; *ep != NULL; ep++) 12689c9e68d9Seric { 12699f9b003eSeric if (strncmp(*ep, "TZ=", 3) == 0 || 12709f9b003eSeric strncmp(*ep, "ISP=", 4) == 0 || 12719f9b003eSeric strncmp(*ep, "SYSTYPE=", 8) == 0) 12729c9e68d9Seric env[i++] = *ep; 12739c9e68d9Seric } 12749c9e68d9Seric env[i++] = NULL; 12759c9e68d9Seric 1276929277f2Seric /* run disconnected from terminal */ 1277929277f2Seric (void) setsid(); 1278929277f2Seric 12799c9e68d9Seric /* try to execute the mailer */ 12809c9e68d9Seric execve(m->m_mailer, pv, env); 12819c9e68d9Seric saveerrno = errno; 12829c9e68d9Seric syserr("Cannot exec %s", m->m_mailer); 12837c941fd2Seric if (m == LocalMailer || transienterror(saveerrno)) 12847c941fd2Seric _exit(EX_OSERR); 12859c9e68d9Seric _exit(EX_UNAVAILABLE); 12869c9e68d9Seric } 12879c9e68d9Seric 12889c9e68d9Seric /* 12899c9e68d9Seric ** Set up return value. 12909c9e68d9Seric */ 12919c9e68d9Seric 12929c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 12939c9e68d9Seric bzero((char *) mci, sizeof *mci); 12949c9e68d9Seric mci->mci_mailer = m; 12959c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 12969c9e68d9Seric mci->mci_pid = pid; 12979c9e68d9Seric (void) close(mpvect[0]); 12989c9e68d9Seric mci->mci_out = fdopen(mpvect[1], "w"); 1299335eae58Seric if (mci->mci_out == NULL) 1300335eae58Seric { 1301335eae58Seric syserr("deliver: cannot create mailer output channel, fd=%d", 1302335eae58Seric mpvect[1]); 1303335eae58Seric (void) close(mpvect[1]); 1304335eae58Seric if (clever) 1305335eae58Seric { 1306335eae58Seric (void) close(rpvect[0]); 1307335eae58Seric (void) close(rpvect[1]); 1308335eae58Seric } 1309335eae58Seric rcode = EX_OSERR; 1310335eae58Seric goto give_up; 1311335eae58Seric } 13129c9e68d9Seric if (clever) 13139c9e68d9Seric { 13149c9e68d9Seric (void) close(rpvect[1]); 13159c9e68d9Seric mci->mci_in = fdopen(rpvect[0], "r"); 1316335eae58Seric if (mci->mci_in == NULL) 1317335eae58Seric { 1318335eae58Seric syserr("deliver: cannot create mailer input channel, fd=%d", 1319335eae58Seric mpvect[1]); 1320335eae58Seric (void) close(rpvect[0]); 1321335eae58Seric fclose(mci->mci_out); 1322335eae58Seric mci->mci_out = NULL; 1323335eae58Seric rcode = EX_OSERR; 1324335eae58Seric goto give_up; 1325335eae58Seric } 13269c9e68d9Seric } 13279c9e68d9Seric else 13289c9e68d9Seric { 13299c9e68d9Seric mci->mci_flags |= MCIF_TEMP; 13309c9e68d9Seric mci->mci_in = NULL; 13319c9e68d9Seric } 13329c9e68d9Seric } 13339c9e68d9Seric 13349c9e68d9Seric /* 13359c9e68d9Seric ** If we are in SMTP opening state, send initial protocol. 13369c9e68d9Seric */ 13379c9e68d9Seric 13389c9e68d9Seric if (clever && mci->mci_state != MCIS_CLOSED) 13399c9e68d9Seric { 13409c9e68d9Seric smtpinit(m, mci, e); 13419c9e68d9Seric } 13429c9e68d9Seric if (tTd(11, 1)) 13439c9e68d9Seric { 13449c9e68d9Seric printf("openmailer: "); 13454052916eSeric mci_dump(mci, FALSE); 13469c9e68d9Seric } 13479c9e68d9Seric 13489c9e68d9Seric if (mci->mci_state != MCIS_OPEN) 1349b31e7f2bSeric { 1350b31e7f2bSeric /* couldn't open the mailer */ 1351b31e7f2bSeric rcode = mci->mci_exitstat; 13522a6bc25bSeric errno = mci->mci_errno; 13539d4a8008Seric #if NAMED_BIND 1354f170942cSeric h_errno = mci->mci_herrno; 1355f170942cSeric #endif 1356b31e7f2bSeric if (rcode == EX_OK) 1357b31e7f2bSeric { 1358b31e7f2bSeric /* shouldn't happen */ 135908b25121Seric syserr("554 deliver: rcode=%d, mci_state=%d, sig=%s", 13606b0f339dSeric rcode, mci->mci_state, firstsig); 1361b31e7f2bSeric rcode = EX_SOFTWARE; 1362b31e7f2bSeric } 1363cb082c5bSeric else if (rcode == EX_TEMPFAIL && curhost != NULL && *curhost != '\0') 136490891494Seric { 136590891494Seric /* try next MX site */ 136690891494Seric goto tryhost; 136790891494Seric } 1368b31e7f2bSeric } 1369b31e7f2bSeric else if (!clever) 1370b31e7f2bSeric { 1371b31e7f2bSeric /* 1372b31e7f2bSeric ** Format and send message. 1373b31e7f2bSeric */ 137415d084d5Seric 13755aa0f353Seric putfromline(mci, e); 13765aa0f353Seric (*e->e_puthdr)(mci, e); 13775aa0f353Seric putline("\n", mci); 13785aa0f353Seric (*e->e_putbody)(mci, e, NULL); 1379b31e7f2bSeric 1380b31e7f2bSeric /* get the exit status */ 1381c9be6216Seric rcode = endmailer(mci, e, pv); 1382134746fbSeric } 1383134746fbSeric else 1384b31e7f2bSeric #ifdef SMTP 1385134746fbSeric { 1386b31e7f2bSeric /* 1387b31e7f2bSeric ** Send the MAIL FROM: protocol 1388b31e7f2bSeric */ 138915d084d5Seric 1390b31e7f2bSeric rcode = smtpmailfrom(m, mci, e); 1391b31e7f2bSeric if (rcode == EX_OK) 139275889e88Seric { 1393ded0d3daSkarels register char *t = tobuf; 1394ded0d3daSkarels register int i; 1395ded0d3daSkarels 1396588cad61Seric /* send the recipient list */ 139763780dbdSeric tobuf[0] = '\0'; 139875889e88Seric for (to = tochain; to != NULL; to = to->q_tchain) 139975889e88Seric { 140063780dbdSeric e->e_to = to->q_paddr; 140115d084d5Seric if ((i = smtprcpt(to, m, mci, e)) != EX_OK) 140275889e88Seric { 140383b7ddc9Seric markfailure(e, to, i); 14044dee0003Seric giveresponse(i, m, mci, ctladdr, e); 140563780dbdSeric } 140675889e88Seric else 140775889e88Seric { 1408911693bfSbostic *t++ = ','; 1409b31e7f2bSeric for (p = to->q_paddr; *p; *t++ = *p++) 1410b31e7f2bSeric continue; 1411ee39df61Seric *t = '\0'; 1412588cad61Seric } 1413588cad61Seric } 1414588cad61Seric 141563780dbdSeric /* now send the data */ 141663780dbdSeric if (tobuf[0] == '\0') 1417b31e7f2bSeric { 14189c9e68d9Seric rcode = EX_OK; 141963780dbdSeric e->e_to = NULL; 1420b31e7f2bSeric if (bitset(MCIF_CACHED, mci->mci_flags)) 1421b31e7f2bSeric smtprset(m, mci, e); 1422b31e7f2bSeric } 142375889e88Seric else 142475889e88Seric { 142563780dbdSeric e->e_to = tobuf + 1; 142675889e88Seric rcode = smtpdata(m, mci, e); 142763780dbdSeric } 142863780dbdSeric 142963780dbdSeric /* now close the connection */ 1430b31e7f2bSeric if (!bitset(MCIF_CACHED, mci->mci_flags)) 143115d084d5Seric smtpquit(m, mci, e); 143263780dbdSeric } 1433cb082c5bSeric if (rcode != EX_OK && curhost != NULL && *curhost != '\0') 14349c9e68d9Seric { 14359c9e68d9Seric /* try next MX site */ 14369c9e68d9Seric goto tryhost; 14379c9e68d9Seric } 1438c579ef51Seric } 1439b31e7f2bSeric #else /* not SMTP */ 1440a05b3449Sbostic { 144108b25121Seric syserr("554 deliver: need SMTP compiled to use clever mailer"); 1442845e533cSeric rcode = EX_CONFIG; 1443b31e7f2bSeric goto give_up; 1444a05b3449Sbostic } 1445b31e7f2bSeric #endif /* SMTP */ 14469d4a8008Seric #if NAMED_BIND 14472bcc6d2dSeric if (ConfigLevel < 2) 1448912a731aSbostic _res.options |= RES_DEFNAMES | RES_DNSRCH; /* XXX */ 1449134746fbSeric #endif 14505dfc646bSeric 1451b31e7f2bSeric /* arrange a return receipt if requested */ 1452df106f0bSeric if (rcode == EX_OK && e->e_receiptto != NULL && 1453df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1454b31e7f2bSeric { 1455b31e7f2bSeric e->e_flags |= EF_SENDRECEIPT; 1456b31e7f2bSeric /* do we want to send back more info? */ 1457b31e7f2bSeric } 1458b31e7f2bSeric 1459c77d1c25Seric /* 146063780dbdSeric ** Do final status disposal. 146163780dbdSeric ** We check for something in tobuf for the SMTP case. 1462c77d1c25Seric ** If we got a temporary failure, arrange to queue the 1463c77d1c25Seric ** addressees. 1464c77d1c25Seric */ 1465c77d1c25Seric 1466b31e7f2bSeric give_up: 146763780dbdSeric if (tobuf[0] != '\0') 14684dee0003Seric giveresponse(rcode, m, mci, ctladdr, e); 1469772e6e50Seric for (to = tochain; to != NULL; to = to->q_tchain) 1470b31e7f2bSeric { 1471dde5acadSeric if (rcode != EX_OK) 147283b7ddc9Seric markfailure(e, to, rcode); 1473dde5acadSeric else 1474655518ecSeric { 1475dde5acadSeric to->q_flags |= QSENT; 1476655518ecSeric e->e_nsent++; 1477df106f0bSeric if (e->e_receiptto != NULL && 1478df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1479df106f0bSeric { 1480df106f0bSeric fprintf(e->e_xfp, "%s... Successfully delivered\n", 1481df106f0bSeric to->q_paddr); 1482df106f0bSeric } 1483655518ecSeric } 1484b31e7f2bSeric } 1485b31e7f2bSeric 1486b31e7f2bSeric /* 1487b31e7f2bSeric ** Restore state and return. 1488b31e7f2bSeric */ 1489c77d1c25Seric 14907febfd66Seric #ifdef XDEBUG 14917febfd66Seric { 14927febfd66Seric char wbuf[MAXLINE]; 14937febfd66Seric 14947febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 149544622ea3Seric sprintf(wbuf, "%s... end of deliver(%s)", 149644622ea3Seric e->e_to == NULL ? "NO-TO-LIST" : e->e_to, 149744622ea3Seric m->m_name); 14987febfd66Seric checkfd012(wbuf); 14997febfd66Seric } 15007febfd66Seric #endif 15017febfd66Seric 150235490626Seric errno = 0; 1503588cad61Seric define('g', (char *) NULL, e); 15045826d9d3Seric return (rcode); 150525a99e2eSeric } 15065dfc646bSeric /* 150783b7ddc9Seric ** MARKFAILURE -- mark a failure on a specific address. 150883b7ddc9Seric ** 150983b7ddc9Seric ** Parameters: 151083b7ddc9Seric ** e -- the envelope we are sending. 151183b7ddc9Seric ** q -- the address to mark. 151283b7ddc9Seric ** rcode -- the code signifying the particular failure. 151383b7ddc9Seric ** 151483b7ddc9Seric ** Returns: 151583b7ddc9Seric ** none. 151683b7ddc9Seric ** 151783b7ddc9Seric ** Side Effects: 151883b7ddc9Seric ** marks the address (and possibly the envelope) with the 151983b7ddc9Seric ** failure so that an error will be returned or 152083b7ddc9Seric ** the message will be queued, as appropriate. 152183b7ddc9Seric */ 152283b7ddc9Seric 152383b7ddc9Seric markfailure(e, q, rcode) 152483b7ddc9Seric register ENVELOPE *e; 152583b7ddc9Seric register ADDRESS *q; 152683b7ddc9Seric int rcode; 152783b7ddc9Seric { 152819c47125Seric char buf[MAXLINE]; 152919c47125Seric 1530d5aafa3cSeric switch (rcode) 1531d5aafa3cSeric { 1532d5aafa3cSeric case EX_OK: 1533d5aafa3cSeric break; 1534d5aafa3cSeric 1535d5aafa3cSeric case EX_TEMPFAIL: 1536d5aafa3cSeric case EX_IOERR: 1537d5aafa3cSeric case EX_OSERR: 153883b7ddc9Seric q->q_flags |= QQUEUEUP; 1539d5aafa3cSeric break; 1540d5aafa3cSeric 1541d5aafa3cSeric default: 1542f170942cSeric q->q_flags |= QBADADDR; 1543d5aafa3cSeric break; 1544d5aafa3cSeric } 154583b7ddc9Seric } 154683b7ddc9Seric /* 1547c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 1548c579ef51Seric ** 1549c579ef51Seric ** We should never get fatal errors (e.g., segmentation 1550c579ef51Seric ** violation), so we report those specially. For other 1551c579ef51Seric ** errors, we choose a status message (into statmsg), 1552c579ef51Seric ** and if it represents an error, we print it. 1553c579ef51Seric ** 1554c579ef51Seric ** Parameters: 1555c579ef51Seric ** pid -- pid of mailer. 1556c9be6216Seric ** e -- the current envelope. 1557c9be6216Seric ** pv -- the parameter vector that invoked the mailer 1558c9be6216Seric ** (for error messages). 1559c579ef51Seric ** 1560c579ef51Seric ** Returns: 1561c579ef51Seric ** exit code of mailer. 1562c579ef51Seric ** 1563c579ef51Seric ** Side Effects: 1564c579ef51Seric ** none. 1565c579ef51Seric */ 1566c579ef51Seric 1567c9be6216Seric endmailer(mci, e, pv) 1568b31e7f2bSeric register MCI *mci; 1569c9be6216Seric register ENVELOPE *e; 1570c9be6216Seric char **pv; 1571c579ef51Seric { 1572588cad61Seric int st; 1573c579ef51Seric 157475889e88Seric /* close any connections */ 157575889e88Seric if (mci->mci_in != NULL) 157676f3d53fSeric (void) xfclose(mci->mci_in, mci->mci_mailer->m_name, "mci_in"); 157775889e88Seric if (mci->mci_out != NULL) 157876f3d53fSeric (void) xfclose(mci->mci_out, mci->mci_mailer->m_name, "mci_out"); 157975889e88Seric mci->mci_in = mci->mci_out = NULL; 158075889e88Seric mci->mci_state = MCIS_CLOSED; 158175889e88Seric 158233db8731Seric /* in the IPC case there is nothing to wait for */ 158375889e88Seric if (mci->mci_pid == 0) 158433db8731Seric return (EX_OK); 158533db8731Seric 158633db8731Seric /* wait for the mailer process to die and collect status */ 158775889e88Seric st = waitfor(mci->mci_pid); 1588588cad61Seric if (st == -1) 158978de67c1Seric { 1590c9be6216Seric syserr("endmailer %s: wait", pv[0]); 1591588cad61Seric return (EX_SOFTWARE); 1592c579ef51Seric } 159333db8731Seric 1594bf9bc890Seric if (WIFEXITED(st)) 1595c579ef51Seric { 1596bf9bc890Seric /* normal death -- return status */ 1597bf9bc890Seric return (WEXITSTATUS(st)); 1598bf9bc890Seric } 1599bf9bc890Seric 1600bf9bc890Seric /* it died a horrid death */ 1601550092c3Seric syserr("451 mailer %s died with signal %o", 1602550092c3Seric mci->mci_mailer->m_name, st); 1603c9be6216Seric 1604c9be6216Seric /* log the arguments */ 16053c930db3Seric if (pv != NULL && e->e_xfp != NULL) 1606c9be6216Seric { 1607c9be6216Seric register char **av; 1608c9be6216Seric 1609c9be6216Seric fprintf(e->e_xfp, "Arguments:"); 1610c9be6216Seric for (av = pv; *av != NULL; av++) 1611c9be6216Seric fprintf(e->e_xfp, " %s", *av); 1612c9be6216Seric fprintf(e->e_xfp, "\n"); 1613c9be6216Seric } 1614c9be6216Seric 16155f73204aSeric ExitStat = EX_TEMPFAIL; 16165f73204aSeric return (EX_TEMPFAIL); 1617c579ef51Seric } 1618c579ef51Seric /* 161925a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 162025a99e2eSeric ** 162125a99e2eSeric ** Parameters: 162225a99e2eSeric ** stat -- the status code from the mailer (high byte 162325a99e2eSeric ** only; core dumps must have been taken care of 162425a99e2eSeric ** already). 162581161401Seric ** m -- the mailer info for this mailer. 162681161401Seric ** mci -- the mailer connection info -- can be NULL if the 162781161401Seric ** response is given before the connection is made. 16284dee0003Seric ** ctladdr -- the controlling address for the recipient 16294dee0003Seric ** address(es). 163081161401Seric ** e -- the current envelope. 163125a99e2eSeric ** 163225a99e2eSeric ** Returns: 1633db8841e9Seric ** none. 163425a99e2eSeric ** 163525a99e2eSeric ** Side Effects: 1636c1f9df2cSeric ** Errors may be incremented. 163725a99e2eSeric ** ExitStat may be set. 163825a99e2eSeric */ 163925a99e2eSeric 16404dee0003Seric giveresponse(stat, m, mci, ctladdr, e) 164125a99e2eSeric int stat; 1642588cad61Seric register MAILER *m; 164381161401Seric register MCI *mci; 16444dee0003Seric ADDRESS *ctladdr; 1645198d9be0Seric ENVELOPE *e; 164625a99e2eSeric { 16479c16475dSeric register const char *statmsg; 164825a99e2eSeric extern char *SysExMsg[]; 164925a99e2eSeric register int i; 1650d4bd8f0eSbostic extern int N_SysEx; 1651198d9be0Seric char buf[MAXLINE]; 165225a99e2eSeric 165313bbc08cSeric /* 165413bbc08cSeric ** Compute status message from code. 165513bbc08cSeric */ 165613bbc08cSeric 165725a99e2eSeric i = stat - EX__BASE; 1658588cad61Seric if (stat == 0) 16596fe8c3bcSeric { 1660588cad61Seric statmsg = "250 Sent"; 1661ce5531bdSeric if (e->e_statmsg != NULL) 16626fe8c3bcSeric { 1663ce5531bdSeric (void) sprintf(buf, "%s (%s)", statmsg, e->e_statmsg); 16646fe8c3bcSeric statmsg = buf; 16656fe8c3bcSeric } 16666fe8c3bcSeric } 1667588cad61Seric else if (i < 0 || i > N_SysEx) 1668588cad61Seric { 1669588cad61Seric (void) sprintf(buf, "554 unknown mailer error %d", stat); 1670588cad61Seric stat = EX_UNAVAILABLE; 1671588cad61Seric statmsg = buf; 1672588cad61Seric } 1673198d9be0Seric else if (stat == EX_TEMPFAIL) 1674198d9be0Seric { 16757d55540cSeric (void) strcpy(buf, SysExMsg[i] + 1); 16769d4a8008Seric #if NAMED_BIND 1677f28da541Smiriam if (h_errno == TRY_AGAIN) 16784d50702aSeric statmsg = errstring(h_errno+E_DNSBASE); 1679f28da541Smiriam else 1680d4bd8f0eSbostic #endif 1681f28da541Smiriam { 16828557d168Seric if (errno != 0) 1683d87e85f3Seric statmsg = errstring(errno); 1684d87e85f3Seric else 1685d87e85f3Seric { 1686d87e85f3Seric #ifdef SMTP 1687d87e85f3Seric statmsg = SmtpError; 16886c2c3107Seric #else /* SMTP */ 1689d87e85f3Seric statmsg = NULL; 16906c2c3107Seric #endif /* SMTP */ 1691d87e85f3Seric } 1692f28da541Smiriam } 1693d87e85f3Seric if (statmsg != NULL && statmsg[0] != '\0') 1694d87e85f3Seric { 169587c9b3e7Seric (void) strcat(buf, ": "); 1696d87e85f3Seric (void) strcat(buf, statmsg); 16978557d168Seric } 1698198d9be0Seric statmsg = buf; 1699198d9be0Seric } 17009d4a8008Seric #if NAMED_BIND 1701f170942cSeric else if (stat == EX_NOHOST && h_errno != 0) 1702f170942cSeric { 17034d50702aSeric statmsg = errstring(h_errno + E_DNSBASE); 1704f170942cSeric (void) sprintf(buf, "%s (%s)", SysExMsg[i], statmsg); 1705f170942cSeric statmsg = buf; 1706f170942cSeric } 1707f170942cSeric #endif 170825a99e2eSeric else 1709d87e85f3Seric { 171025a99e2eSeric statmsg = SysExMsg[i]; 17117d55540cSeric if (*statmsg++ == ':') 17127d55540cSeric { 17137d55540cSeric (void) sprintf(buf, "%s: %s", statmsg, errstring(errno)); 17147d55540cSeric statmsg = buf; 17157d55540cSeric } 1716d87e85f3Seric } 1717588cad61Seric 1718588cad61Seric /* 1719588cad61Seric ** Print the message as appropriate 1720588cad61Seric */ 1721588cad61Seric 1722198d9be0Seric if (stat == EX_OK || stat == EX_TEMPFAIL) 1723df106f0bSeric { 1724df106f0bSeric extern char MsgBuf[]; 1725df106f0bSeric 17261f96bd0bSeric message("%s", &statmsg[4]); 1727df106f0bSeric if (stat == EX_TEMPFAIL && e->e_xfp != NULL) 1728df106f0bSeric fprintf(e->e_xfp, "%s\n", &MsgBuf[4]); 1729df106f0bSeric } 173025a99e2eSeric else 173125a99e2eSeric { 1732c1f9df2cSeric Errors++; 1733e12d03eeSeric usrerr(statmsg, errstring(errno)); 173425a99e2eSeric } 173525a99e2eSeric 173625a99e2eSeric /* 173725a99e2eSeric ** Final cleanup. 173825a99e2eSeric ** Log a record of the transaction. Compute the new 173925a99e2eSeric ** ExitStat -- if we already had an error, stick with 174025a99e2eSeric ** that. 174125a99e2eSeric */ 174225a99e2eSeric 17432f624c86Seric if (LogLevel > ((stat == EX_TEMPFAIL) ? 8 : (stat == EX_OK) ? 7 : 6)) 17444dee0003Seric logdelivery(m, mci, &statmsg[4], ctladdr, e); 1745eb238f8cSeric 17465d3f0ed4Seric if (tTd(11, 2)) 17475d3f0ed4Seric printf("giveresponse: stat=%d, e->e_message=%s\n", 17485d3f0ed4Seric stat, e->e_message); 17495d3f0ed4Seric 1750eb238f8cSeric if (stat != EX_TEMPFAIL) 1751eb238f8cSeric setstat(stat); 17521097d4c9Seric if (stat != EX_OK && (stat != EX_TEMPFAIL || e->e_message == NULL)) 1753198d9be0Seric { 1754198d9be0Seric if (e->e_message != NULL) 1755198d9be0Seric free(e->e_message); 1756198d9be0Seric e->e_message = newstr(&statmsg[4]); 1757198d9be0Seric } 17588557d168Seric errno = 0; 17599d4a8008Seric #if NAMED_BIND 1760f28da541Smiriam h_errno = 0; 1761d4bd8f0eSbostic #endif 1762eb238f8cSeric } 1763eb238f8cSeric /* 1764eb238f8cSeric ** LOGDELIVERY -- log the delivery in the system log 1765eb238f8cSeric ** 17662c9b4f99Seric ** Care is taken to avoid logging lines that are too long, because 17672c9b4f99Seric ** some versions of syslog have an unfortunate proclivity for core 17682c9b4f99Seric ** dumping. This is a hack, to be sure, that is at best empirical. 17692c9b4f99Seric ** 1770eb238f8cSeric ** Parameters: 177181161401Seric ** m -- the mailer info. Can be NULL for initial queue. 177281161401Seric ** mci -- the mailer connection info -- can be NULL if the 177381161401Seric ** log is occuring when no connection is active. 177481161401Seric ** stat -- the message to print for the status. 17754dee0003Seric ** ctladdr -- the controlling address for the to list. 177681161401Seric ** e -- the current envelope. 1777eb238f8cSeric ** 1778eb238f8cSeric ** Returns: 1779eb238f8cSeric ** none 1780eb238f8cSeric ** 1781eb238f8cSeric ** Side Effects: 1782eb238f8cSeric ** none 1783eb238f8cSeric */ 1784eb238f8cSeric 17854dee0003Seric logdelivery(m, mci, stat, ctladdr, e) 178681161401Seric MAILER *m; 178781161401Seric register MCI *mci; 1788eb238f8cSeric char *stat; 17894dee0003Seric ADDRESS *ctladdr; 1790b31e7f2bSeric register ENVELOPE *e; 17915cf56be3Seric { 1792eb238f8cSeric # ifdef LOG 17934dee0003Seric register char *bp; 17942c9b4f99Seric register char *p; 17952c9b4f99Seric int l; 1796d6acf3eeSeric char buf[512]; 17979507d1f9Seric 17983a100e8bSeric # if (SYSLOG_BUFSIZE) >= 256 17994dee0003Seric bp = buf; 18004dee0003Seric if (ctladdr != NULL) 18014dee0003Seric { 18024dee0003Seric strcpy(bp, ", ctladdr="); 1803f62f08c7Seric strcat(bp, shortenstring(ctladdr->q_paddr, 83)); 18044dee0003Seric bp += strlen(bp); 18054dee0003Seric if (bitset(QGOODUID, ctladdr->q_flags)) 18064dee0003Seric { 18074dee0003Seric (void) sprintf(bp, " (%d/%d)", 18084dee0003Seric ctladdr->q_uid, ctladdr->q_gid); 18094dee0003Seric bp += strlen(bp); 18104dee0003Seric } 18114dee0003Seric } 18124dee0003Seric 18134dee0003Seric (void) sprintf(bp, ", delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 18144dee0003Seric bp += strlen(bp); 181581161401Seric 181648ed5d33Seric if (m != NULL) 181771ff6caaSeric { 18184dee0003Seric (void) strcpy(bp, ", mailer="); 18194dee0003Seric (void) strcat(bp, m->m_name); 18204dee0003Seric bp += strlen(bp); 182171ff6caaSeric } 182248ed5d33Seric 182348ed5d33Seric if (mci != NULL && mci->mci_host != NULL) 182471ff6caaSeric { 182571ff6caaSeric # ifdef DAEMON 1826e2f2f828Seric extern SOCKADDR CurHostAddr; 182748ed5d33Seric # endif 182871ff6caaSeric 18294dee0003Seric (void) strcpy(bp, ", relay="); 18304dee0003Seric (void) strcat(bp, mci->mci_host); 183148ed5d33Seric 183248ed5d33Seric # ifdef DAEMON 18332bdfc6b9Seric (void) strcat(bp, " ["); 18344dee0003Seric (void) strcat(bp, anynet_ntoa(&CurHostAddr)); 18352bdfc6b9Seric (void) strcat(bp, "]"); 183671ff6caaSeric # endif 183771ff6caaSeric } 18389507d1f9Seric else 183948ed5d33Seric { 184048ed5d33Seric char *p = macvalue('h', e); 18419507d1f9Seric 184248ed5d33Seric if (p != NULL && p[0] != '\0') 184348ed5d33Seric { 18444dee0003Seric (void) strcpy(bp, ", relay="); 18454dee0003Seric (void) strcat(bp, p); 184648ed5d33Seric } 184748ed5d33Seric } 1848cb082c5bSeric bp += strlen(bp); 1849d6acf3eeSeric 18503a100e8bSeric #define STATLEN (((SYSLOG_BUFSIZE) - 100) / 4) 18513a100e8bSeric #if (STATLEN) < 63 18523a100e8bSeric # undef STATLEN 18533a100e8bSeric # define STATLEN 63 18543a100e8bSeric #endif 18553a100e8bSeric #if (STATLEN) > 203 18563a100e8bSeric # undef STATLEN 18573a100e8bSeric # define STATLEN 203 18583a100e8bSeric #endif 18593a100e8bSeric 18603a100e8bSeric if ((bp - buf) > (sizeof buf - ((STATLEN) + 20))) 18612c9b4f99Seric { 18622c9b4f99Seric /* desperation move -- truncate data */ 18633a100e8bSeric bp = buf + sizeof buf - ((STATLEN) + 17); 18642c9b4f99Seric strcpy(bp, "..."); 18652c9b4f99Seric bp += 3; 18662c9b4f99Seric } 18672c9b4f99Seric 18682c9b4f99Seric (void) strcpy(bp, ", stat="); 18692c9b4f99Seric bp += strlen(bp); 18703a100e8bSeric 18713a100e8bSeric (void) strcpy(bp, shortenstring(stat, (STATLEN))); 18722c9b4f99Seric 18732c9b4f99Seric l = SYSLOG_BUFSIZE - 100 - strlen(buf); 18742c9b4f99Seric p = e->e_to; 18752c9b4f99Seric while (strlen(p) >= l) 18762c9b4f99Seric { 18772c9b4f99Seric register char *q = strchr(p + l, ','); 18782c9b4f99Seric 18792a1b6b73Seric if (q == NULL) 18802c9b4f99Seric break; 18812c9b4f99Seric syslog(LOG_INFO, "%s: to=%.*s [more]%s", 18822c9b4f99Seric e->e_id, ++q - p, p, buf); 18832c9b4f99Seric p = q; 18842c9b4f99Seric } 18852c9b4f99Seric syslog(LOG_INFO, "%s: to=%s%s", e->e_id, p, buf); 18863a100e8bSeric 18873a100e8bSeric # else /* we have a very short log buffer size */ 18883a100e8bSeric 188927607809Seric l = SYSLOG_BUFSIZE - 85; 18903a100e8bSeric p = e->e_to; 18913a100e8bSeric while (strlen(p) >= l) 18923a100e8bSeric { 18933a100e8bSeric register char *q = strchr(p + l, ','); 18943a100e8bSeric 18953a100e8bSeric if (q == NULL) 18963a100e8bSeric break; 18973a100e8bSeric syslog(LOG_INFO, "%s: to=%.*s [more]", 18983a100e8bSeric e->e_id, ++q - p, p); 18993a100e8bSeric p = q; 19003a100e8bSeric } 19013a100e8bSeric syslog(LOG_INFO, "%s: to=%s", e->e_id, p); 19023a100e8bSeric 19033a100e8bSeric if (ctladdr != NULL) 19043a100e8bSeric { 19053a100e8bSeric bp = buf; 19063a100e8bSeric strcpy(buf, "ctladdr="); 19073a100e8bSeric bp += strlen(buf); 19083a100e8bSeric strcpy(bp, shortenstring(ctladdr->q_paddr, 83)); 19093a100e8bSeric bp += strlen(buf); 19103a100e8bSeric if (bitset(QGOODUID, ctladdr->q_flags)) 19113a100e8bSeric { 19123a100e8bSeric (void) sprintf(bp, " (%d/%d)", 19133a100e8bSeric ctladdr->q_uid, ctladdr->q_gid); 19143a100e8bSeric bp += strlen(bp); 19153a100e8bSeric } 19163a100e8bSeric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19173a100e8bSeric } 19184e797715Seric bp = buf; 19194e797715Seric sprintf(bp, "delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 19204e797715Seric bp += strlen(bp); 19213a100e8bSeric 19223a100e8bSeric if (m != NULL) 19234e797715Seric { 19244e797715Seric sprintf(bp, ", mailer=%s", m->m_name); 19254e797715Seric bp += strlen(bp); 19264e797715Seric } 1927b056abd0Seric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19283a100e8bSeric 1929b056abd0Seric buf[0] = '\0'; 19303a100e8bSeric if (mci != NULL && mci->mci_host != NULL) 19313a100e8bSeric { 19323a100e8bSeric # ifdef DAEMON 19333a100e8bSeric extern SOCKADDR CurHostAddr; 19343a100e8bSeric # endif 19353a100e8bSeric 1936d2ece200Seric sprintf(buf, "relay=%s", mci->mci_host); 19373a100e8bSeric 19383a100e8bSeric # ifdef DAEMON 1939b056abd0Seric (void) strcat(buf, " ["); 1940b056abd0Seric (void) strcat(buf, anynet_ntoa(&CurHostAddr)); 1941b056abd0Seric (void) strcat(buf, "]"); 19423a100e8bSeric # endif 19433a100e8bSeric } 19443a100e8bSeric else 19453a100e8bSeric { 19463a100e8bSeric char *p = macvalue('h', e); 19473a100e8bSeric 19483a100e8bSeric if (p != NULL && p[0] != '\0') 1949d2ece200Seric sprintf(buf, "relay=%s", p); 19503a100e8bSeric } 1951b056abd0Seric if (buf[0] != '\0') 19524e797715Seric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19533a100e8bSeric 19543a100e8bSeric syslog(LOG_INFO, "%s: stat=%s", e->e_id, shortenstring(stat, 63)); 19553a100e8bSeric # endif /* short log buffer */ 19566c2c3107Seric # endif /* LOG */ 195725a99e2eSeric } 195825a99e2eSeric /* 195951552439Seric ** PUTFROMLINE -- output a UNIX-style from line (or whatever) 196025a99e2eSeric ** 196151552439Seric ** This can be made an arbitrary message separator by changing $l 196251552439Seric ** 19639b6c17a6Seric ** One of the ugliest hacks seen by human eyes is contained herein: 19649b6c17a6Seric ** UUCP wants those stupid "remote from <host>" lines. Why oh why 19659b6c17a6Seric ** does a well-meaning programmer such as myself have to deal with 19669b6c17a6Seric ** this kind of antique garbage???? 196725a99e2eSeric ** 196825a99e2eSeric ** Parameters: 19695aa0f353Seric ** mci -- the connection information. 19705aa0f353Seric ** e -- the envelope. 197125a99e2eSeric ** 197225a99e2eSeric ** Returns: 197351552439Seric ** none 197425a99e2eSeric ** 197525a99e2eSeric ** Side Effects: 197651552439Seric ** outputs some text to fp. 197725a99e2eSeric */ 197825a99e2eSeric 19795aa0f353Seric putfromline(mci, e) 19805aa0f353Seric register MCI *mci; 1981b31e7f2bSeric ENVELOPE *e; 198225a99e2eSeric { 19832bc47524Seric char *template = "\201l\n"; 198451552439Seric char buf[MAXLINE]; 198525a99e2eSeric 19865aa0f353Seric if (bitnset(M_NHDR, mci->mci_mailer->m_flags)) 198751552439Seric return; 198813bbc08cSeric 19892c7e1b8dSeric # ifdef UGLYUUCP 19905aa0f353Seric if (bitnset(M_UGLYUUCP, mci->mci_mailer->m_flags)) 199174b6e67bSeric { 1992ea09d6edSeric char *bang; 1993ea09d6edSeric char xbuf[MAXLINE]; 199474b6e67bSeric 1995ee4b0922Seric expand("\201g", buf, &buf[sizeof buf - 1], e); 19966c2c3107Seric bang = strchr(buf, '!'); 199774b6e67bSeric if (bang == NULL) 199834fcca25Seric { 199934fcca25Seric errno = 0; 200034fcca25Seric syserr("554 No ! in UUCP From address! (%s given)", buf); 200134fcca25Seric } 200274b6e67bSeric else 2003588cad61Seric { 2004ea09d6edSeric *bang++ = '\0'; 20052bc47524Seric (void) sprintf(xbuf, "From %s \201d remote from %s\n", bang, buf); 2006ea09d6edSeric template = xbuf; 200774b6e67bSeric } 2008588cad61Seric } 20096c2c3107Seric # endif /* UGLYUUCP */ 2010b31e7f2bSeric expand(template, buf, &buf[sizeof buf - 1], e); 20115aa0f353Seric putline(buf, mci); 2012bc6e2962Seric } 2013bc6e2962Seric /* 201451552439Seric ** PUTBODY -- put the body of a message. 201551552439Seric ** 201651552439Seric ** Parameters: 20175aa0f353Seric ** mci -- the connection information. 20189a6a5f55Seric ** e -- the envelope to put out. 201903c02fdeSeric ** separator -- if non-NULL, a message separator that must 202003c02fdeSeric ** not be permitted in the resulting message. 202151552439Seric ** 202251552439Seric ** Returns: 202351552439Seric ** none. 202451552439Seric ** 202551552439Seric ** Side Effects: 202651552439Seric ** The message is written onto fp. 202751552439Seric */ 202851552439Seric 20295aa0f353Seric putbody(mci, e, separator) 20305aa0f353Seric register MCI *mci; 20319a6a5f55Seric register ENVELOPE *e; 203203c02fdeSeric char *separator; 203351552439Seric { 203477b52738Seric char buf[MAXLINE]; 203551552439Seric 203651552439Seric /* 203751552439Seric ** Output the body of the message 203851552439Seric */ 203951552439Seric 20409a6a5f55Seric if (e->e_dfp == NULL) 204151552439Seric { 20429a6a5f55Seric if (e->e_df != NULL) 20439a6a5f55Seric { 20449a6a5f55Seric e->e_dfp = fopen(e->e_df, "r"); 20459a6a5f55Seric if (e->e_dfp == NULL) 20468f9146b0Srick syserr("putbody: Cannot open %s for %s from %s", 2047e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 20489a6a5f55Seric } 20499a6a5f55Seric else 20505aa0f353Seric putline("<<< No Message Collected >>>", mci); 20519a6a5f55Seric } 20529a6a5f55Seric if (e->e_dfp != NULL) 20539a6a5f55Seric { 20549a6a5f55Seric rewind(e->e_dfp); 20555aa0f353Seric while (!ferror(mci->mci_out) && fgets(buf, sizeof buf, e->e_dfp) != NULL) 205624fc8aeeSeric { 20575aa0f353Seric if (buf[0] == 'F' && 20585aa0f353Seric bitnset(M_ESCFROM, mci->mci_mailer->m_flags) && 2059d6fa2b58Sbostic strncmp(buf, "From ", 5) == 0) 20605aa0f353Seric (void) putc('>', mci->mci_out); 206103c02fdeSeric if (buf[0] == '-' && buf[1] == '-' && separator != NULL) 206203c02fdeSeric { 206303c02fdeSeric /* possible separator */ 206403c02fdeSeric int sl = strlen(separator); 206503c02fdeSeric 206603c02fdeSeric if (strncmp(&buf[2], separator, sl) == 0) 20675aa0f353Seric (void) putc(' ', mci->mci_out); 206803c02fdeSeric } 20695aa0f353Seric putline(buf, mci); 207024fc8aeeSeric } 207151552439Seric 20729a6a5f55Seric if (ferror(e->e_dfp)) 207351552439Seric { 2074df106f0bSeric syserr("putbody: %s: read error", e->e_df); 207551552439Seric ExitStat = EX_IOERR; 207651552439Seric } 207751552439Seric } 207851552439Seric 20790890ba1fSeric /* some mailers want extra blank line at end of message */ 20805aa0f353Seric if (bitnset(M_BLANKEND, mci->mci_mailer->m_flags) && 20815aa0f353Seric buf[0] != '\0' && buf[0] != '\n') 20825aa0f353Seric putline("", mci); 20830890ba1fSeric 20845aa0f353Seric (void) fflush(mci->mci_out); 20855aa0f353Seric if (ferror(mci->mci_out) && errno != EPIPE) 208651552439Seric { 208751552439Seric syserr("putbody: write error"); 208851552439Seric ExitStat = EX_IOERR; 208951552439Seric } 209051552439Seric errno = 0; 209125a99e2eSeric } 209225a99e2eSeric /* 209325a99e2eSeric ** MAILFILE -- Send a message to a file. 209425a99e2eSeric ** 2095f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 2096f129ec7dSeric ** bits, sendmail will try to become the owner of that file 2097f129ec7dSeric ** rather than the real user. Obviously, this only works if 2098f129ec7dSeric ** sendmail runs as root. 2099f129ec7dSeric ** 2100588cad61Seric ** This could be done as a subordinate mailer, except that it 2101588cad61Seric ** is used implicitly to save messages in ~/dead.letter. We 2102588cad61Seric ** view this as being sufficiently important as to include it 2103588cad61Seric ** here. For example, if the system is dying, we shouldn't have 2104588cad61Seric ** to create another process plus some pipes to save the message. 2105588cad61Seric ** 210625a99e2eSeric ** Parameters: 210725a99e2eSeric ** filename -- the name of the file to send to. 21086259796dSeric ** ctladdr -- the controlling address header -- includes 21096259796dSeric ** the userid/groupid to be when sending. 211025a99e2eSeric ** 211125a99e2eSeric ** Returns: 211225a99e2eSeric ** The exit code associated with the operation. 211325a99e2eSeric ** 211425a99e2eSeric ** Side Effects: 211525a99e2eSeric ** none. 211625a99e2eSeric */ 211725a99e2eSeric 2118b31e7f2bSeric mailfile(filename, ctladdr, e) 211925a99e2eSeric char *filename; 21206259796dSeric ADDRESS *ctladdr; 2121b31e7f2bSeric register ENVELOPE *e; 212225a99e2eSeric { 212325a99e2eSeric register FILE *f; 212432d19d43Seric register int pid; 212515d084d5Seric int mode; 212625a99e2eSeric 2127671745f3Seric if (tTd(11, 1)) 2128671745f3Seric { 2129671745f3Seric printf("mailfile %s\n ctladdr=", filename); 2130671745f3Seric printaddr(ctladdr, FALSE); 2131671745f3Seric } 2132671745f3Seric 2133f170942cSeric if (e->e_xfp != NULL) 2134f170942cSeric fflush(e->e_xfp); 2135f170942cSeric 213632d19d43Seric /* 213732d19d43Seric ** Fork so we can change permissions here. 213832d19d43Seric ** Note that we MUST use fork, not vfork, because of 213932d19d43Seric ** the complications of calling subroutines, etc. 214032d19d43Seric */ 214132d19d43Seric 214232d19d43Seric DOFORK(fork); 214332d19d43Seric 214432d19d43Seric if (pid < 0) 214532d19d43Seric return (EX_OSERR); 214632d19d43Seric else if (pid == 0) 214732d19d43Seric { 214832d19d43Seric /* child -- actually write to file */ 2149f129ec7dSeric struct stat stb; 21505aa0f353Seric MCI mcibuf; 2151f129ec7dSeric 21522b9178d3Seric (void) setsignal(SIGINT, SIG_DFL); 21532b9178d3Seric (void) setsignal(SIGHUP, SIG_DFL); 21542b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 21553462ad9eSeric (void) umask(OldUmask); 215695f16dc0Seric 2157f129ec7dSeric if (stat(filename, &stb) < 0) 21583a98e7eaSeric stb.st_mode = FileMode; 215915d084d5Seric mode = stb.st_mode; 216095f16dc0Seric 216195f16dc0Seric /* limit the errors to those actually caused in the child */ 216295f16dc0Seric errno = 0; 216395f16dc0Seric ExitStat = EX_OK; 216495f16dc0Seric 2165f129ec7dSeric if (bitset(0111, stb.st_mode)) 2166f129ec7dSeric exit(EX_CANTCREAT); 216719428781Seric if (ctladdr != NULL) 216815d084d5Seric { 216915d084d5Seric /* ignore setuid and setgid bits */ 217015d084d5Seric mode &= ~(S_ISGID|S_ISUID); 217115d084d5Seric } 217215d084d5Seric 21738f9146b0Srick /* we have to open the dfile BEFORE setuid */ 21748f9146b0Srick if (e->e_dfp == NULL && e->e_df != NULL) 21758f9146b0Srick { 21768f9146b0Srick e->e_dfp = fopen(e->e_df, "r"); 217795f16dc0Seric if (e->e_dfp == NULL) 217895f16dc0Seric { 21798f9146b0Srick syserr("mailfile: Cannot open %s for %s from %s", 2180e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 21818f9146b0Srick } 21828f9146b0Srick } 21838f9146b0Srick 218415d084d5Seric if (!bitset(S_ISGID, mode) || setgid(stb.st_gid) < 0) 2185e36b99e2Seric { 218619428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 218795f16dc0Seric { 2188898a126bSbostic (void) initgroups(DefUser, DefGid); 218995f16dc0Seric } 219095f16dc0Seric else 219195f16dc0Seric { 2192898a126bSbostic (void) initgroups(ctladdr->q_ruser ? 2193898a126bSbostic ctladdr->q_ruser : ctladdr->q_user, 2194898a126bSbostic ctladdr->q_gid); 2195898a126bSbostic } 2196e36b99e2Seric } 219715d084d5Seric if (!bitset(S_ISUID, mode) || setuid(stb.st_uid) < 0) 2198e36b99e2Seric { 219919428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 2200e36b99e2Seric (void) setuid(DefUid); 2201e36b99e2Seric else 22026259796dSeric (void) setuid(ctladdr->q_uid); 2203e36b99e2Seric } 220495f16dc0Seric FileName = filename; 220595f16dc0Seric LineNumber = 0; 22063a98e7eaSeric f = dfopen(filename, O_WRONLY|O_CREAT|O_APPEND, FileMode); 220725a99e2eSeric if (f == NULL) 220895f16dc0Seric { 2209b6a0de9dSeric message("554 cannot open: %s", errstring(errno)); 221032d19d43Seric exit(EX_CANTCREAT); 221195f16dc0Seric } 221225a99e2eSeric 22135aa0f353Seric bzero(&mcibuf, sizeof mcibuf); 22145aa0f353Seric mcibuf.mci_mailer = FileMailer; 22155aa0f353Seric mcibuf.mci_out = f; 22165aa0f353Seric if (bitnset(M_7BITS, FileMailer->m_flags)) 22175aa0f353Seric mcibuf.mci_flags |= MCIF_7BIT; 22185aa0f353Seric 22195aa0f353Seric putfromline(&mcibuf, e); 22205aa0f353Seric (*e->e_puthdr)(&mcibuf, e); 22215aa0f353Seric putline("\n", &mcibuf); 22225aa0f353Seric (*e->e_putbody)(&mcibuf, e, NULL); 22235aa0f353Seric putline("\n", &mcibuf); 222495f16dc0Seric if (ferror(f)) 222595f16dc0Seric { 2226b6a0de9dSeric message("451 I/O error: %s", errstring(errno)); 222795f16dc0Seric setstat(EX_IOERR); 222895f16dc0Seric } 2229ee4b0922Seric (void) xfclose(f, "mailfile", filename); 223032d19d43Seric (void) fflush(stdout); 2231e36b99e2Seric 223227628d59Seric /* reset ISUID & ISGID bits for paranoid systems */ 2233c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 223495f16dc0Seric exit(ExitStat); 223513bbc08cSeric /*NOTREACHED*/ 223632d19d43Seric } 223732d19d43Seric else 223832d19d43Seric { 223932d19d43Seric /* parent -- wait for exit status */ 2240588cad61Seric int st; 224132d19d43Seric 2242588cad61Seric st = waitfor(pid); 2243bf9bc890Seric if (WIFEXITED(st)) 2244bf9bc890Seric return (WEXITSTATUS(st)); 2245588cad61Seric else 2246b6a0de9dSeric { 2247b6a0de9dSeric syserr("child died on signal %d", st); 2248bf9bc890Seric return (EX_UNAVAILABLE); 2249b6a0de9dSeric } 22508f9146b0Srick /*NOTREACHED*/ 225132d19d43Seric } 225225a99e2eSeric } 2253ea4dc939Seric /* 2254e103b48fSeric ** HOSTSIGNATURE -- return the "signature" for a host. 2255e103b48fSeric ** 2256e103b48fSeric ** The signature describes how we are going to send this -- it 2257e103b48fSeric ** can be just the hostname (for non-Internet hosts) or can be 2258e103b48fSeric ** an ordered list of MX hosts. 2259e103b48fSeric ** 2260e103b48fSeric ** Parameters: 2261e103b48fSeric ** m -- the mailer describing this host. 2262e103b48fSeric ** host -- the host name. 2263e103b48fSeric ** e -- the current envelope. 2264e103b48fSeric ** 2265e103b48fSeric ** Returns: 2266e103b48fSeric ** The signature for this host. 2267e103b48fSeric ** 2268e103b48fSeric ** Side Effects: 2269e103b48fSeric ** Can tweak the symbol table. 2270e103b48fSeric */ 2271e103b48fSeric 2272e103b48fSeric char * 2273e103b48fSeric hostsignature(m, host, e) 2274e103b48fSeric register MAILER *m; 2275e103b48fSeric char *host; 2276e103b48fSeric ENVELOPE *e; 2277e103b48fSeric { 2278e103b48fSeric register char *p; 2279e103b48fSeric register STAB *s; 2280e103b48fSeric int i; 2281e103b48fSeric int len; 22829d4a8008Seric #if NAMED_BIND 2283e103b48fSeric int nmx; 2284e103b48fSeric auto int rcode; 2285bafdc4e5Seric char *hp; 2286bafdc4e5Seric char *endp; 2287516782b4Seric int oldoptions; 2288e103b48fSeric char *mxhosts[MAXMXHOSTS + 1]; 2289e103b48fSeric #endif 2290e103b48fSeric 2291e103b48fSeric /* 2292e103b48fSeric ** Check to see if this uses IPC -- if not, it can't have MX records. 2293e103b48fSeric */ 2294e103b48fSeric 2295e103b48fSeric p = m->m_mailer; 2296e103b48fSeric if (strcmp(p, "[IPC]") != 0 && strcmp(p, "[TCP]") != 0) 2297e103b48fSeric { 2298e103b48fSeric /* just an ordinary mailer */ 2299e103b48fSeric return host; 2300e103b48fSeric } 2301e103b48fSeric 2302e103b48fSeric /* 2303e103b48fSeric ** Look it up in the symbol table. 2304e103b48fSeric */ 2305e103b48fSeric 2306e103b48fSeric s = stab(host, ST_HOSTSIG, ST_ENTER); 2307e103b48fSeric if (s->s_hostsig != NULL) 2308e103b48fSeric return s->s_hostsig; 2309e103b48fSeric 2310e103b48fSeric /* 2311e103b48fSeric ** Not already there -- create a signature. 2312e103b48fSeric */ 2313e103b48fSeric 23149d4a8008Seric #if NAMED_BIND 2315516782b4Seric if (ConfigLevel < 2) 2316516782b4Seric { 2317516782b4Seric oldoptions = _res.options; 2318516782b4Seric _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 2319516782b4Seric } 2320516782b4Seric 2321bafdc4e5Seric for (hp = host; hp != NULL; hp = endp) 2322bafdc4e5Seric { 2323bafdc4e5Seric endp = strchr(hp, ':'); 2324bafdc4e5Seric if (endp != NULL) 2325bafdc4e5Seric *endp = '\0'; 2326bafdc4e5Seric 23277bf809e6Seric nmx = getmxrr(hp, mxhosts, TRUE, &rcode); 23287d55540cSeric 2329e103b48fSeric if (nmx <= 0) 2330e103b48fSeric { 2331e103b48fSeric register MCI *mci; 2332e103b48fSeric 2333e103b48fSeric /* update the connection info for this host */ 2334bafdc4e5Seric mci = mci_get(hp, m); 2335e103b48fSeric mci->mci_exitstat = rcode; 2336e103b48fSeric mci->mci_errno = errno; 23379d4a8008Seric #if NAMED_BIND 2338f170942cSeric mci->mci_herrno = h_errno; 2339f170942cSeric #endif 2340e103b48fSeric 2341e103b48fSeric /* and return the original host name as the signature */ 2342bafdc4e5Seric nmx = 1; 2343bafdc4e5Seric mxhosts[0] = hp; 2344e103b48fSeric } 2345e103b48fSeric 2346e103b48fSeric len = 0; 2347e103b48fSeric for (i = 0; i < nmx; i++) 2348e103b48fSeric { 2349e103b48fSeric len += strlen(mxhosts[i]) + 1; 2350e103b48fSeric } 2351bafdc4e5Seric if (s->s_hostsig != NULL) 2352bafdc4e5Seric len += strlen(s->s_hostsig) + 1; 2353bafdc4e5Seric p = xalloc(len); 2354bafdc4e5Seric if (s->s_hostsig != NULL) 2355bafdc4e5Seric { 2356bafdc4e5Seric (void) strcpy(p, s->s_hostsig); 2357bafdc4e5Seric free(s->s_hostsig); 2358bafdc4e5Seric s->s_hostsig = p; 2359bafdc4e5Seric p += strlen(p); 2360bafdc4e5Seric *p++ = ':'; 2361bafdc4e5Seric } 2362bafdc4e5Seric else 2363bafdc4e5Seric s->s_hostsig = p; 2364e103b48fSeric for (i = 0; i < nmx; i++) 2365e103b48fSeric { 2366e103b48fSeric if (i != 0) 2367e103b48fSeric *p++ = ':'; 2368e103b48fSeric strcpy(p, mxhosts[i]); 2369e103b48fSeric p += strlen(p); 2370e103b48fSeric } 2371bafdc4e5Seric if (endp != NULL) 2372bafdc4e5Seric *endp++ = ':'; 2373bafdc4e5Seric } 2374e103b48fSeric makelower(s->s_hostsig); 2375516782b4Seric if (ConfigLevel < 2) 2376516782b4Seric _res.options = oldoptions; 2377e103b48fSeric #else 2378e103b48fSeric /* not using BIND -- the signature is just the host name */ 2379e103b48fSeric s->s_hostsig = host; 2380e103b48fSeric #endif 2381e103b48fSeric if (tTd(17, 1)) 2382e103b48fSeric printf("hostsignature(%s) = %s\n", host, s->s_hostsig); 2383e103b48fSeric return s->s_hostsig; 2384e103b48fSeric } 2385