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*9d4a8008Seric static char sccsid[] = "@(#)deliver.c 8.78 (Berkeley) 03/11/94"; 11e70a7521Sbostic #endif /* not lint */ 124227346bSdist 13fcde9cc8Sbostic #include "sendmail.h" 14f28da541Smiriam #include <netdb.h> 15911693bfSbostic #include <errno.h> 16*9d4a8008Seric #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); 209ce5531bdSeric ee->e_flags = e->e_flags & ~(EF_INQUEUE|EF_CLRQUEUE|EF_FATALERRS); 210ce5531bdSeric setsender(owner, ee, NULL, TRUE); 211ce5531bdSeric if (tTd(13, 5)) 212ce5531bdSeric { 213ce5531bdSeric printf("sendall(split): QDONTSEND "); 214ce5531bdSeric printaddr(&ee->e_from, FALSE); 215ce5531bdSeric } 216ce5531bdSeric ee->e_from.q_flags |= QDONTSEND; 217ce5531bdSeric ee->e_dfp = NULL; 218ce5531bdSeric ee->e_xfp = NULL; 219ce5531bdSeric ee->e_df = NULL; 220ce5531bdSeric ee->e_errormode = EM_MAIL; 221b056abd0Seric ee->e_sibling = splitenv; 222b056abd0Seric splitenv = ee; 223ce5531bdSeric 224ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 225ce5531bdSeric if (q->q_owner == owner) 226de1a6b1bSeric { 227ce5531bdSeric q->q_flags |= QDONTSEND; 228de1a6b1bSeric q->q_flags &= ~QQUEUEUP; 229de1a6b1bSeric } 230ce5531bdSeric for (q = ee->e_sendqueue; q != NULL; q = q->q_next) 231ce5531bdSeric if (q->q_owner != owner) 232de1a6b1bSeric { 233ce5531bdSeric q->q_flags |= QDONTSEND; 234de1a6b1bSeric q->q_flags &= ~QQUEUEUP; 235de1a6b1bSeric } 236ce5531bdSeric 237ce5531bdSeric if (e->e_df != NULL && mode != SM_VERIFY) 238ce5531bdSeric { 239ce5531bdSeric ee->e_dfp = NULL; 240da662164Seric ee->e_df = queuename(ee, 'd'); 241da662164Seric ee->e_df = newstr(ee->e_df); 242ce5531bdSeric if (link(e->e_df, ee->e_df) < 0) 243ce5531bdSeric { 244ce5531bdSeric syserr("sendall: link(%s, %s)", 245ce5531bdSeric e->e_df, ee->e_df); 246ce5531bdSeric } 247ce5531bdSeric } 248ce5531bdSeric #ifdef LOG 249ce5531bdSeric if (LogLevel > 4) 250c8b70947Seric syslog(LOG_INFO, "%s: clone %s, owner=%s", 251c8b70947Seric ee->e_id, e->e_id, owner); 252ce5531bdSeric #endif 253ce5531bdSeric } 254ce5531bdSeric } 255ce5531bdSeric 256ce5531bdSeric if (owner != NULL) 257ce5531bdSeric { 258ce5531bdSeric setsender(owner, e, NULL, TRUE); 259ce5531bdSeric if (tTd(13, 5)) 260ce5531bdSeric { 261ce5531bdSeric printf("sendall(owner): QDONTSEND "); 262ce5531bdSeric printaddr(&e->e_from, FALSE); 263ce5531bdSeric } 264ce5531bdSeric e->e_from.q_flags |= QDONTSEND; 265ce5531bdSeric e->e_errormode = EM_MAIL; 266ce5531bdSeric } 267ce5531bdSeric 268c1ac89b1Seric # ifdef QUEUE 269c1ac89b1Seric if ((mode == SM_QUEUE || mode == SM_FORK || 270c1ac89b1Seric (mode != SM_VERIFY && SuperSafe)) && 271c1ac89b1Seric !bitset(EF_INQUEUE, e->e_flags)) 272c1ac89b1Seric { 273c1ac89b1Seric /* be sure everything is instantiated in the queue */ 2746103d9b4Seric queueup(e, TRUE, announcequeueup); 275b056abd0Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 276b056abd0Seric queueup(ee, TRUE, announcequeueup); 277c1ac89b1Seric } 278c1ac89b1Seric #endif /* QUEUE */ 279c1ac89b1Seric 280b056abd0Seric if (splitenv != NULL) 281b056abd0Seric { 282b056abd0Seric if (tTd(13, 1)) 283b056abd0Seric { 284b056abd0Seric printf("\nsendall: Split queue; remaining queue:\n"); 285b056abd0Seric printaddr(e->e_sendqueue, TRUE); 286b056abd0Seric } 287b056abd0Seric 288b056abd0Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 289b056abd0Seric { 290b056abd0Seric CurEnv = ee; 291562ec147Seric if (mode != SM_VERIFY) 292562ec147Seric openxscript(ee); 293b056abd0Seric sendenvelope(ee, mode); 294562ec147Seric dropenvelope(ee); 295b056abd0Seric } 296b056abd0Seric 297b056abd0Seric CurEnv = e; 298b056abd0Seric } 299b056abd0Seric sendenvelope(e, mode); 300b056abd0Seric } 301b056abd0Seric 302b056abd0Seric sendenvelope(e, mode) 303b056abd0Seric register ENVELOPE *e; 304b056abd0Seric char mode; 305b056abd0Seric { 306b056abd0Seric bool oldverbose; 307b056abd0Seric int pid; 308b056abd0Seric register ADDRESS *q; 309b056abd0Seric char *qf; 310b056abd0Seric char *id; 311b056abd0Seric 3127880f3e4Seric /* 3137880f3e4Seric ** If we have had global, fatal errors, don't bother sending 3147880f3e4Seric ** the message at all if we are in SMTP mode. Local errors 3157880f3e4Seric ** (e.g., a single address failing) will still cause the other 3167880f3e4Seric ** addresses to be sent. 3177880f3e4Seric */ 3187880f3e4Seric 3198d19a23dSeric if (bitset(EF_FATALERRS, e->e_flags) && 3208d19a23dSeric (OpMode == MD_SMTP || OpMode == MD_DAEMON)) 3217880f3e4Seric { 3227880f3e4Seric e->e_flags |= EF_CLRQUEUE; 3237880f3e4Seric return; 3247880f3e4Seric } 3257880f3e4Seric 326ce5531bdSeric oldverbose = Verbose; 327c1ac89b1Seric switch (mode) 328c1ac89b1Seric { 329c1ac89b1Seric case SM_VERIFY: 330c1ac89b1Seric Verbose = TRUE; 331c1ac89b1Seric break; 332c1ac89b1Seric 333c1ac89b1Seric case SM_QUEUE: 334c1ac89b1Seric queueonly: 335c1ac89b1Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 336c1ac89b1Seric return; 337c1ac89b1Seric 338c1ac89b1Seric case SM_FORK: 339c1ac89b1Seric if (e->e_xfp != NULL) 340c1ac89b1Seric (void) fflush(e->e_xfp); 341c1ac89b1Seric 342b269aa8eSeric # if !HASFLOCK 343c1ac89b1Seric /* 3446b2765c6Seric ** Since fcntl locking has the interesting semantic that 3456b2765c6Seric ** the lock is owned by a process, not by an open file 3466b2765c6Seric ** descriptor, we have to flush this to the queue, and 3476b2765c6Seric ** then restart from scratch in the child. 348c1ac89b1Seric */ 349c1ac89b1Seric 3506b2765c6Seric /* save id for future use */ 3516b2765c6Seric id = e->e_id; 3526b2765c6Seric 3536b2765c6Seric /* now drop the envelope in the parent */ 3546b2765c6Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 3556b2765c6Seric dropenvelope(e); 3566b2765c6Seric 3576b2765c6Seric /* and reacquire in the child */ 3586b2765c6Seric (void) dowork(id, TRUE, FALSE, e); 3596b2765c6Seric 3606b2765c6Seric return; 3616b2765c6Seric 3626b2765c6Seric # else /* HASFLOCK */ 363c1ac89b1Seric 364c1ac89b1Seric pid = fork(); 365c1ac89b1Seric if (pid < 0) 366c1ac89b1Seric { 367c1ac89b1Seric goto queueonly; 368c1ac89b1Seric } 369c1ac89b1Seric else if (pid > 0) 370c1ac89b1Seric { 3710e484fe5Seric /* be sure we leave the temp files to our child */ 3720e484fe5Seric /* can't call unlockqueue to avoid unlink of xfp */ 3730e484fe5Seric if (e->e_lockfp != NULL) 3740e484fe5Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 3750e484fe5Seric e->e_lockfp = NULL; 3760e484fe5Seric 3770e484fe5Seric /* close any random open files in the envelope */ 3780e484fe5Seric closexscript(e); 3790e484fe5Seric if (e->e_dfp != NULL) 3800e484fe5Seric (void) xfclose(e->e_dfp, "sendenvelope", e->e_df); 3810e484fe5Seric e->e_dfp = NULL; 3820e484fe5Seric e->e_id = e->e_df = NULL; 3839f9b003eSeric 3849f9b003eSeric /* catch intermediate zombie */ 3859f9b003eSeric (void) waitfor(pid); 386c1ac89b1Seric return; 387c1ac89b1Seric } 388c1ac89b1Seric 389c1ac89b1Seric /* double fork to avoid zombies */ 3909f9b003eSeric pid = fork(); 3919f9b003eSeric if (pid > 0) 392c1ac89b1Seric exit(EX_OK); 393c1ac89b1Seric 394c1ac89b1Seric /* be sure we are immune from the terminal */ 3957880f3e4Seric disconnect(1, e); 396c1ac89b1Seric 3979f9b003eSeric /* prevent parent from waiting if there was an error */ 3989f9b003eSeric if (pid < 0) 3999f9b003eSeric { 4009f9b003eSeric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 4019f9b003eSeric finis(); 4029f9b003eSeric } 4039f9b003eSeric 404c1ac89b1Seric /* 405c1ac89b1Seric ** Close any cached connections. 406c1ac89b1Seric ** 407c1ac89b1Seric ** We don't send the QUIT protocol because the parent 408c1ac89b1Seric ** still knows about the connection. 409c1ac89b1Seric ** 410c1ac89b1Seric ** This should only happen when delivering an error 411c1ac89b1Seric ** message. 412c1ac89b1Seric */ 413c1ac89b1Seric 414c1ac89b1Seric mci_flush(FALSE, NULL); 415c1ac89b1Seric 4166b2765c6Seric # endif /* HASFLOCK */ 4176b2765c6Seric 418c1ac89b1Seric break; 419c1ac89b1Seric } 420c1ac89b1Seric 421c1ac89b1Seric /* 4229c9e68d9Seric ** Run through the list and send everything. 4235288e21aSeric ** 4245288e21aSeric ** Set EF_GLOBALERRS so that error messages during delivery 4255288e21aSeric ** result in returned mail. 4269c9e68d9Seric */ 4279c9e68d9Seric 4289c9e68d9Seric e->e_nsent = 0; 4295288e21aSeric e->e_flags |= EF_GLOBALERRS; 430faad2b16Seric 431faad2b16Seric /* now run through the queue */ 4329c9e68d9Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 4339c9e68d9Seric { 434fdc75a0fSeric #ifdef XDEBUG 435fdc75a0fSeric char wbuf[MAXNAME + 20]; 436fdc75a0fSeric 437fdc75a0fSeric (void) sprintf(wbuf, "sendall(%s)", q->q_paddr); 438fdc75a0fSeric checkfd012(wbuf); 439fdc75a0fSeric #endif 4409c9e68d9Seric if (mode == SM_VERIFY) 4419c9e68d9Seric { 4429c9e68d9Seric e->e_to = q->q_paddr; 4439c9e68d9Seric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4448dfca105Seric { 445fafe46e1Seric if (q->q_host != NULL && q->q_host[0] != '\0') 4468dfca105Seric message("deliverable: mailer %s, host %s, user %s", 4478dfca105Seric q->q_mailer->m_name, 4488dfca105Seric q->q_host, 4498dfca105Seric q->q_user); 450fafe46e1Seric else 451fafe46e1Seric message("deliverable: mailer %s, user %s", 452fafe46e1Seric q->q_mailer->m_name, 453fafe46e1Seric q->q_user); 4548dfca105Seric } 4559c9e68d9Seric } 4569c9e68d9Seric else if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4579c9e68d9Seric { 4589c9e68d9Seric # ifdef QUEUE 4599c9e68d9Seric /* 4609c9e68d9Seric ** Checkpoint the send list every few addresses 4619c9e68d9Seric */ 4629c9e68d9Seric 4639c9e68d9Seric if (e->e_nsent >= CheckpointInterval) 4649c9e68d9Seric { 4659c9e68d9Seric queueup(e, TRUE, FALSE); 4669c9e68d9Seric e->e_nsent = 0; 4679c9e68d9Seric } 4689c9e68d9Seric # endif /* QUEUE */ 4699c9e68d9Seric (void) deliver(e, q); 4709c9e68d9Seric } 4719c9e68d9Seric } 4729c9e68d9Seric Verbose = oldverbose; 4739c9e68d9Seric 474fdc75a0fSeric #ifdef XDEBUG 475fdc75a0fSeric checkfd012("end of sendenvelope"); 476fdc75a0fSeric #endif 477fdc75a0fSeric 4789c9e68d9Seric if (mode == SM_FORK) 4799c9e68d9Seric finis(); 4809c9e68d9Seric } 4819c9e68d9Seric /* 4829c9e68d9Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 4839c9e68d9Seric ** 4849c9e68d9Seric ** This MUST be a macro, since after a vfork we are running 4859c9e68d9Seric ** two processes on the same stack!!! 4869c9e68d9Seric ** 4879c9e68d9Seric ** Parameters: 4889c9e68d9Seric ** none. 4899c9e68d9Seric ** 4909c9e68d9Seric ** Returns: 4919c9e68d9Seric ** From a macro??? You've got to be kidding! 4929c9e68d9Seric ** 4939c9e68d9Seric ** Side Effects: 4949c9e68d9Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 4959c9e68d9Seric ** pid of child in parent, zero in child. 4969c9e68d9Seric ** -1 on unrecoverable error. 4979c9e68d9Seric ** 4989c9e68d9Seric ** Notes: 4999c9e68d9Seric ** I'm awfully sorry this looks so awful. That's 5009c9e68d9Seric ** vfork for you..... 5019c9e68d9Seric */ 5029c9e68d9Seric 5039c9e68d9Seric # define NFORKTRIES 5 5049c9e68d9Seric 5059c9e68d9Seric # ifndef FORK 5069c9e68d9Seric # define FORK fork 5079c9e68d9Seric # endif 5089c9e68d9Seric 5099c9e68d9Seric # define DOFORK(fORKfN) \ 5109c9e68d9Seric {\ 5119c9e68d9Seric register int i;\ 5129c9e68d9Seric \ 5139c9e68d9Seric for (i = NFORKTRIES; --i >= 0; )\ 5149c9e68d9Seric {\ 5159c9e68d9Seric pid = fORKfN();\ 5169c9e68d9Seric if (pid >= 0)\ 5179c9e68d9Seric break;\ 5189c9e68d9Seric if (i > 0)\ 5199c9e68d9Seric sleep((unsigned) NFORKTRIES - i);\ 5209c9e68d9Seric }\ 5219c9e68d9Seric } 5229c9e68d9Seric /* 5239c9e68d9Seric ** DOFORK -- simple fork interface to DOFORK. 5249c9e68d9Seric ** 5259c9e68d9Seric ** Parameters: 5269c9e68d9Seric ** none. 5279c9e68d9Seric ** 5289c9e68d9Seric ** Returns: 5299c9e68d9Seric ** pid of child in parent. 5309c9e68d9Seric ** zero in child. 5319c9e68d9Seric ** -1 on error. 5329c9e68d9Seric ** 5339c9e68d9Seric ** Side Effects: 5349c9e68d9Seric ** returns twice, once in parent and once in child. 5359c9e68d9Seric */ 5369c9e68d9Seric 5379c9e68d9Seric dofork() 5389c9e68d9Seric { 5399c9e68d9Seric register int pid; 5409c9e68d9Seric 5419c9e68d9Seric DOFORK(fork); 5429c9e68d9Seric return (pid); 5439c9e68d9Seric } 5449c9e68d9Seric /* 54513bbc08cSeric ** DELIVER -- Deliver a message to a list of addresses. 54613bbc08cSeric ** 54713bbc08cSeric ** This routine delivers to everyone on the same host as the 54813bbc08cSeric ** user on the head of the list. It is clever about mailers 54913bbc08cSeric ** that don't handle multiple users. It is NOT guaranteed 55013bbc08cSeric ** that it will deliver to all these addresses however -- so 55113bbc08cSeric ** deliver should be called once for each address on the 55213bbc08cSeric ** list. 55325a99e2eSeric ** 55425a99e2eSeric ** Parameters: 555588cad61Seric ** e -- the envelope to deliver. 556c77d1c25Seric ** firstto -- head of the address list to deliver to. 55725a99e2eSeric ** 55825a99e2eSeric ** Returns: 55925a99e2eSeric ** zero -- successfully delivered. 56025a99e2eSeric ** else -- some failure, see ExitStat for more info. 56125a99e2eSeric ** 56225a99e2eSeric ** Side Effects: 56325a99e2eSeric ** The standard input is passed off to someone. 56425a99e2eSeric */ 56525a99e2eSeric 566588cad61Seric deliver(e, firstto) 567588cad61Seric register ENVELOPE *e; 568c77d1c25Seric ADDRESS *firstto; 56925a99e2eSeric { 57078442df3Seric char *host; /* host being sent to */ 57178442df3Seric char *user; /* user being sent to */ 57225a99e2eSeric char **pvp; 5735dfc646bSeric register char **mvp; 57425a99e2eSeric register char *p; 575588cad61Seric register MAILER *m; /* mailer for this recipient */ 5766259796dSeric ADDRESS *ctladdr; 577b31e7f2bSeric register MCI *mci; 578c77d1c25Seric register ADDRESS *to = firstto; 579c579ef51Seric bool clever = FALSE; /* running user smtp to this mailer */ 580772e6e50Seric ADDRESS *tochain = NULL; /* chain of users in this mailer call */ 581911693bfSbostic int rcode; /* response code */ 582e103b48fSeric char *firstsig; /* signature of firstto */ 5839c9e68d9Seric int pid; 5849c9e68d9Seric char *curhost; 5859c9e68d9Seric int mpvect[2]; 5869c9e68d9Seric int rpvect[2]; 587ee6bf8dfSeric char *pv[MAXPV+1]; 588579ef0ddSeric char tobuf[TOBUFSIZE]; /* text line of to people */ 589ee6bf8dfSeric char buf[MAXNAME]; 590c23ed322Seric char rpathbuf[MAXNAME]; /* translated return path */ 591fabb3bd4Seric extern int checkcompat(); 59225a99e2eSeric 59335490626Seric errno = 0; 594ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags)) 5955dfc646bSeric return (0); 59625a99e2eSeric 597*9d4a8008Seric #if NAMED_BIND 598912a731aSbostic /* unless interactive, try twice, over a minute */ 5998d19a23dSeric if (OpMode == MD_DAEMON || OpMode == MD_SMTP) 6008d19a23dSeric { 601912a731aSbostic _res.retrans = 30; 602912a731aSbostic _res.retry = 2; 603912a731aSbostic } 604d4bd8f0eSbostic #endif 605912a731aSbostic 60651552439Seric m = to->q_mailer; 60751552439Seric host = to->q_host; 608c9be6216Seric CurEnv = e; /* just in case */ 6094384d521Seric e->e_statmsg = NULL; 610df106f0bSeric SmtpError[0] = '\0'; 61151552439Seric 6126ef48975Seric if (tTd(10, 1)) 613562ec147Seric printf("\n--deliver, id=%s, mailer=%s, host=`%s', first user=`%s'\n", 614562ec147Seric e->e_id, m->m_name, host, to->q_user); 615ab81ee53Seric if (tTd(10, 100)) 616ab81ee53Seric printopenfds(FALSE); 617f3dbc832Seric 618f3dbc832Seric /* 619f3dbc832Seric ** If this mailer is expensive, and if we don't want to make 620f3dbc832Seric ** connections now, just mark these addresses and return. 621f3dbc832Seric ** This is useful if we want to batch connections to 622f3dbc832Seric ** reduce load. This will cause the messages to be 623f3dbc832Seric ** queued up, and a daemon will come along to send the 624f3dbc832Seric ** messages later. 625f3dbc832Seric ** This should be on a per-mailer basis. 626f3dbc832Seric */ 627f3dbc832Seric 62879aa5155Seric if (NoConnect && bitnset(M_EXPENSIVE, m->m_flags) && !Verbose) 629f3dbc832Seric { 630f3dbc832Seric for (; to != NULL; to = to->q_next) 631f4560e80Seric { 632ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 633c6e18ac5Seric to->q_mailer != m) 634f4560e80Seric continue; 635268a25e1Seric to->q_flags |= QQUEUEUP; 636588cad61Seric e->e_to = to->q_paddr; 63708b25121Seric message("queued"); 6382f624c86Seric if (LogLevel > 8) 6394dee0003Seric logdelivery(m, NULL, "queued", NULL, e); 640f4560e80Seric } 641588cad61Seric e->e_to = NULL; 642f3dbc832Seric return (0); 643f3dbc832Seric } 644f3dbc832Seric 64525a99e2eSeric /* 6465dfc646bSeric ** Do initial argv setup. 6475dfc646bSeric ** Insert the mailer name. Notice that $x expansion is 6485dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 6495dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 6505dfc646bSeric ** code does not check for 'pv' overflow; this places a 6515dfc646bSeric ** manifest lower limit of 4 for MAXPV. 6523bea8136Seric ** The from address rewrite is expected to make 6533bea8136Seric ** the address relative to the other end. 6545dfc646bSeric */ 6555dfc646bSeric 65678442df3Seric /* rewrite from address, using rewriting rules */ 657efe54562Seric rcode = EX_OK; 658efe54562Seric (void) strcpy(rpathbuf, remotename(e->e_from.q_paddr, m, 659efe54562Seric RF_SENDERADDR|RF_CANONICAL, 660efe54562Seric &rcode, e)); 661ee4b0922Seric define('g', rpathbuf, e); /* translated return path */ 662588cad61Seric define('h', host, e); /* to host */ 6635dfc646bSeric Errors = 0; 6645dfc646bSeric pvp = pv; 6655dfc646bSeric *pvp++ = m->m_argv[0]; 6665dfc646bSeric 6675dfc646bSeric /* insert -f or -r flag as appropriate */ 66857fc6f17Seric if (FromFlag && (bitnset(M_FOPT, m->m_flags) || bitnset(M_ROPT, m->m_flags))) 6695dfc646bSeric { 67057fc6f17Seric if (bitnset(M_FOPT, m->m_flags)) 6715dfc646bSeric *pvp++ = "-f"; 6725dfc646bSeric else 6735dfc646bSeric *pvp++ = "-r"; 674c23ed322Seric *pvp++ = newstr(rpathbuf); 6755dfc646bSeric } 6765dfc646bSeric 6775dfc646bSeric /* 6785dfc646bSeric ** Append the other fixed parts of the argv. These run 6795dfc646bSeric ** up to the first entry containing "$u". There can only 6805dfc646bSeric ** be one of these, and there are only a few more slots 6815dfc646bSeric ** in the pv after it. 6825dfc646bSeric */ 6835dfc646bSeric 6845dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 6855dfc646bSeric { 6862bc47524Seric /* can't use strchr here because of sign extension problems */ 6872bc47524Seric while (*p != '\0') 6882bc47524Seric { 6892bc47524Seric if ((*p++ & 0377) == MACROEXPAND) 6902bc47524Seric { 6912bc47524Seric if (*p == 'u') 6925dfc646bSeric break; 6932bc47524Seric } 6942bc47524Seric } 6952bc47524Seric 6962bc47524Seric if (*p != '\0') 6975dfc646bSeric break; 6985dfc646bSeric 6995dfc646bSeric /* this entry is safe -- go ahead and process it */ 700588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 7015dfc646bSeric *pvp++ = newstr(buf); 7025dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 7035dfc646bSeric { 70408b25121Seric syserr("554 Too many parameters to %s before $u", pv[0]); 7055dfc646bSeric return (-1); 7065dfc646bSeric } 7075dfc646bSeric } 708c579ef51Seric 70933db8731Seric /* 71033db8731Seric ** If we have no substitution for the user name in the argument 71133db8731Seric ** list, we know that we must supply the names otherwise -- and 71233db8731Seric ** SMTP is the answer!! 71333db8731Seric */ 71433db8731Seric 7155dfc646bSeric if (*mvp == NULL) 716c579ef51Seric { 717c579ef51Seric /* running SMTP */ 7182c7e1b8dSeric # ifdef SMTP 719c579ef51Seric clever = TRUE; 720c579ef51Seric *pvp = NULL; 7216c2c3107Seric # else /* SMTP */ 72233db8731Seric /* oops! we don't implement SMTP */ 723df106f0bSeric syserr("554 SMTP style mailer not implemented"); 7242c7e1b8dSeric return (EX_SOFTWARE); 7256c2c3107Seric # endif /* SMTP */ 726c579ef51Seric } 7275dfc646bSeric 7285dfc646bSeric /* 7295dfc646bSeric ** At this point *mvp points to the argument with $u. We 7305dfc646bSeric ** run through our address list and append all the addresses 7315dfc646bSeric ** we can. If we run out of space, do not fret! We can 7325dfc646bSeric ** always send another copy later. 7335dfc646bSeric */ 7345dfc646bSeric 7355dfc646bSeric tobuf[0] = '\0'; 736588cad61Seric e->e_to = tobuf; 7376259796dSeric ctladdr = NULL; 738e103b48fSeric firstsig = hostsignature(firstto->q_mailer, firstto->q_host, e); 7395dfc646bSeric for (; to != NULL; to = to->q_next) 7405dfc646bSeric { 7415dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 74257fc6f17Seric if (tobuf[0] != '\0' && !bitnset(M_MUSER, m->m_flags)) 7435dfc646bSeric break; 7445dfc646bSeric 7455dfc646bSeric /* if already sent or not for this host, don't send */ 746ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 747e103b48fSeric to->q_mailer != firstto->q_mailer || 748e103b48fSeric strcmp(hostsignature(to->q_mailer, to->q_host, e), firstsig) != 0) 7495dfc646bSeric continue; 7506259796dSeric 7514b22ea87Seric /* avoid overflowing tobuf */ 752aa50a568Sbostic if (sizeof tobuf < (strlen(to->q_paddr) + strlen(tobuf) + 2)) 7534b22ea87Seric break; 7544b22ea87Seric 7556ef48975Seric if (tTd(10, 1)) 756772e6e50Seric { 757772e6e50Seric printf("\nsend to "); 758772e6e50Seric printaddr(to, FALSE); 759772e6e50Seric } 760772e6e50Seric 7616259796dSeric /* compute effective uid/gid when sending */ 762960e665aSeric /* XXX perhaps this should be to->q_mailer != LocalMailer ?? */ 763960e665aSeric /* XXX perhaps it should be a mailer flag? */ 764960e665aSeric if (to->q_mailer == ProgMailer || to->q_mailer == FileMailer) 7656259796dSeric ctladdr = getctladdr(to); 7666259796dSeric 7675dfc646bSeric user = to->q_user; 768588cad61Seric e->e_to = to->q_paddr; 76975f1ade9Seric if (tTd(10, 5)) 77075f1ade9Seric { 77175f1ade9Seric printf("deliver: QDONTSEND "); 77275f1ade9Seric printaddr(to, FALSE); 77375f1ade9Seric } 774ee4b0922Seric to->q_flags |= QDONTSEND; 7755dfc646bSeric 7765dfc646bSeric /* 7775dfc646bSeric ** Check to see that these people are allowed to 7785dfc646bSeric ** talk to each other. 7792a6e0786Seric */ 7802a6e0786Seric 78169582d2fSeric if (m->m_maxsize != 0 && e->e_msgsize > m->m_maxsize) 78269582d2fSeric { 78369582d2fSeric NoReturn = TRUE; 78408b25121Seric usrerr("552 Message is too large; %ld bytes max", m->m_maxsize); 7854dee0003Seric giveresponse(EX_UNAVAILABLE, m, NULL, ctladdr, e); 78669582d2fSeric continue; 78769582d2fSeric } 788fabb3bd4Seric rcode = checkcompat(to, e); 7891793c9c5Seric if (rcode != EX_OK) 7905dfc646bSeric { 7911000c37aSeric markfailure(e, to, rcode); 7924dee0003Seric giveresponse(rcode, m, NULL, ctladdr, e); 7935dfc646bSeric continue; 7945dfc646bSeric } 7952a6e0786Seric 7962a6e0786Seric /* 7979ec9501bSeric ** Strip quote bits from names if the mailer is dumb 7989ec9501bSeric ** about them. 79925a99e2eSeric */ 80025a99e2eSeric 80157fc6f17Seric if (bitnset(M_STRIPQ, m->m_flags)) 80225a99e2eSeric { 8031d8f1806Seric stripquotes(user); 8041d8f1806Seric stripquotes(host); 80525a99e2eSeric } 80625a99e2eSeric 807cdb828c5Seric /* hack attack -- delivermail compatibility */ 808cdb828c5Seric if (m == ProgMailer && *user == '|') 809cdb828c5Seric user++; 810cdb828c5Seric 81125a99e2eSeric /* 8123efaed6eSeric ** If an error message has already been given, don't 8133efaed6eSeric ** bother to send to this address. 8143efaed6eSeric ** 8153efaed6eSeric ** >>>>>>>>>> This clause assumes that the local mailer 8163efaed6eSeric ** >> NOTE >> cannot do any further aliasing; that 8173efaed6eSeric ** >>>>>>>>>> function is subsumed by sendmail. 8183efaed6eSeric */ 8193efaed6eSeric 8206cae517dSeric if (bitset(QBADADDR|QQUEUEUP, to->q_flags)) 8213efaed6eSeric continue; 8223efaed6eSeric 823f2fec898Seric /* save statistics.... */ 824588cad61Seric markstats(e, to); 825f2fec898Seric 8263efaed6eSeric /* 82725a99e2eSeric ** See if this user name is "special". 82825a99e2eSeric ** If the user name has a slash in it, assume that this 82951552439Seric ** is a file -- send it off without further ado. Note 83051552439Seric ** that this type of addresses is not processed along 83151552439Seric ** with the others, so we fudge on the To person. 83225a99e2eSeric */ 83325a99e2eSeric 8342c017f8dSeric if (m == FileMailer) 83525a99e2eSeric { 83603463a75Seric rcode = mailfile(user, ctladdr, e); 83703463a75Seric giveresponse(rcode, m, NULL, ctladdr, e); 838dde5acadSeric if (rcode == EX_OK) 839dde5acadSeric to->q_flags |= QSENT; 8405dfc646bSeric continue; 84125a99e2eSeric } 84225a99e2eSeric 84313bbc08cSeric /* 84413bbc08cSeric ** Address is verified -- add this user to mailer 84513bbc08cSeric ** argv, and add it to the print list of recipients. 84613bbc08cSeric */ 84713bbc08cSeric 848508daeccSeric /* link together the chain of recipients */ 849508daeccSeric to->q_tchain = tochain; 850508daeccSeric tochain = to; 851508daeccSeric 8525dfc646bSeric /* create list of users for error messages */ 853db8841e9Seric (void) strcat(tobuf, ","); 854db8841e9Seric (void) strcat(tobuf, to->q_paddr); 855588cad61Seric define('u', user, e); /* to user */ 856b6f89e6eSeric p = to->q_home; 857b6f89e6eSeric if (p == NULL && ctladdr != NULL) 858b6f89e6eSeric p = ctladdr->q_home; 859b6f89e6eSeric define('z', p, e); /* user's home */ 8605dfc646bSeric 861c579ef51Seric /* 862508daeccSeric ** Expand out this user into argument list. 863c579ef51Seric */ 864c579ef51Seric 865508daeccSeric if (!clever) 866c579ef51Seric { 867588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8685dfc646bSeric *pvp++ = newstr(buf); 8695dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 8705dfc646bSeric { 8715dfc646bSeric /* allow some space for trailing parms */ 8725dfc646bSeric break; 8735dfc646bSeric } 8745dfc646bSeric } 875c579ef51Seric } 8765dfc646bSeric 877145b49b1Seric /* see if any addresses still exist */ 878145b49b1Seric if (tobuf[0] == '\0') 879c579ef51Seric { 880588cad61Seric define('g', (char *) NULL, e); 881145b49b1Seric return (0); 882c579ef51Seric } 883145b49b1Seric 8845dfc646bSeric /* print out messages as full list */ 88563780dbdSeric e->e_to = tobuf + 1; 8865dfc646bSeric 8875dfc646bSeric /* 8885dfc646bSeric ** Fill out any parameters after the $u parameter. 8895dfc646bSeric */ 8905dfc646bSeric 891c579ef51Seric while (!clever && *++mvp != NULL) 8925dfc646bSeric { 893588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8945dfc646bSeric *pvp++ = newstr(buf); 8955dfc646bSeric if (pvp >= &pv[MAXPV]) 89608b25121Seric syserr("554 deliver: pv overflow after $u for %s", pv[0]); 8975dfc646bSeric } 8985dfc646bSeric *pvp++ = NULL; 8995dfc646bSeric 90025a99e2eSeric /* 90125a99e2eSeric ** Call the mailer. 9026328bdf7Seric ** The argument vector gets built, pipes 90325a99e2eSeric ** are created as necessary, and we fork & exec as 9046328bdf7Seric ** appropriate. 905c579ef51Seric ** If we are running SMTP, we just need to clean up. 90625a99e2eSeric */ 90725a99e2eSeric 908960e665aSeric /*XXX this seems a bit wierd */ 9094899f6b5Seric if (ctladdr == NULL && m != ProgMailer && 9104899f6b5Seric bitset(QGOODUID, e->e_from.q_flags)) 911960e665aSeric ctladdr = &e->e_from; 912960e665aSeric 913*9d4a8008Seric #if NAMED_BIND 9142bcc6d2dSeric if (ConfigLevel < 2) 915912a731aSbostic _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 916134746fbSeric #endif 9179c9e68d9Seric 9189c9e68d9Seric if (tTd(11, 1)) 919134746fbSeric { 9209c9e68d9Seric printf("openmailer:"); 9219c9e68d9Seric printav(pv); 9229c9e68d9Seric } 9239c9e68d9Seric errno = 0; 9249c9e68d9Seric 9259c9e68d9Seric CurHostName = m->m_mailer; 9269c9e68d9Seric 9279c9e68d9Seric /* 9289c9e68d9Seric ** Deal with the special case of mail handled through an IPC 9299c9e68d9Seric ** connection. 9309c9e68d9Seric ** In this case we don't actually fork. We must be 9319c9e68d9Seric ** running SMTP for this to work. We will return a 9329c9e68d9Seric ** zero pid to indicate that we are running IPC. 9339c9e68d9Seric ** We also handle a debug version that just talks to stdin/out. 9349c9e68d9Seric */ 9359c9e68d9Seric 9369c9e68d9Seric curhost = NULL; 937c931b82bSeric SmtpPhase = NULL; 938df106f0bSeric mci = NULL; 9399c9e68d9Seric 9407febfd66Seric #ifdef XDEBUG 9417febfd66Seric { 9427febfd66Seric char wbuf[MAXLINE]; 9437febfd66Seric 9447febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 9457febfd66Seric sprintf(wbuf, "%s... openmailer(%s)", e->e_to, m->m_name); 9467febfd66Seric checkfd012(wbuf); 9477febfd66Seric } 9487febfd66Seric #endif 9497febfd66Seric 9509c9e68d9Seric /* check for Local Person Communication -- not for mortals!!! */ 9519c9e68d9Seric if (strcmp(m->m_mailer, "[LPC]") == 0) 9529c9e68d9Seric { 9539c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 9549c9e68d9Seric bzero((char *) mci, sizeof *mci); 9559c9e68d9Seric mci->mci_in = stdin; 9569c9e68d9Seric mci->mci_out = stdout; 9579c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 9589c9e68d9Seric mci->mci_mailer = m; 9599c9e68d9Seric } 9609c9e68d9Seric else if (strcmp(m->m_mailer, "[IPC]") == 0 || 9619c9e68d9Seric strcmp(m->m_mailer, "[TCP]") == 0) 9629c9e68d9Seric { 9639c9e68d9Seric #ifdef DAEMON 9649c9e68d9Seric register int i; 9659c9e68d9Seric register u_short port; 9669c9e68d9Seric 967a5d44642Seric if (pv[0] == NULL || pv[1] == NULL || pv[1][0] == '\0') 968a5d44642Seric { 969a5d44642Seric syserr("null host name for %s mailer", m->m_mailer); 970a5d44642Seric rcode = EX_CONFIG; 971a5d44642Seric goto give_up; 972a5d44642Seric } 973a5d44642Seric 9749c9e68d9Seric CurHostName = pv[1]; 9759c9e68d9Seric curhost = hostsignature(m, pv[1], e); 9769c9e68d9Seric 9779c9e68d9Seric if (curhost == NULL || curhost[0] == '\0') 9789c9e68d9Seric { 979a5d44642Seric syserr("null host signature for %s", pv[1]); 980845e533cSeric rcode = EX_OSERR; 981b31e7f2bSeric goto give_up; 982b31e7f2bSeric } 9839c9e68d9Seric 9849c9e68d9Seric if (!clever) 9859c9e68d9Seric { 9869c9e68d9Seric syserr("554 non-clever IPC"); 987df106f0bSeric rcode = EX_CONFIG; 9889c9e68d9Seric goto give_up; 9899c9e68d9Seric } 9909c9e68d9Seric if (pv[2] != NULL) 9919c9e68d9Seric port = atoi(pv[2]); 9929c9e68d9Seric else 9939c9e68d9Seric port = 0; 9949c9e68d9Seric tryhost: 9959c9e68d9Seric while (*curhost != '\0') 9969c9e68d9Seric { 9979c9e68d9Seric register char *p; 9989c9e68d9Seric static char hostbuf[MAXNAME]; 9999c9e68d9Seric 10009c9e68d9Seric /* pull the next host from the signature */ 10019c9e68d9Seric p = strchr(curhost, ':'); 10029c9e68d9Seric if (p == NULL) 10039c9e68d9Seric p = &curhost[strlen(curhost)]; 1004df106f0bSeric if (p == curhost) 1005df106f0bSeric { 1006df106f0bSeric syserr("deliver: null host name in signature"); 10078087428aSeric curhost++; 1008df106f0bSeric continue; 1009df106f0bSeric } 10109c9e68d9Seric strncpy(hostbuf, curhost, p - curhost); 10119c9e68d9Seric hostbuf[p - curhost] = '\0'; 10129c9e68d9Seric if (*p != '\0') 10139c9e68d9Seric p++; 10149c9e68d9Seric curhost = p; 10159c9e68d9Seric 10169c9e68d9Seric /* see if we already know that this host is fried */ 10179c9e68d9Seric CurHostName = hostbuf; 10189c9e68d9Seric mci = mci_get(hostbuf, m); 10199c9e68d9Seric if (mci->mci_state != MCIS_CLOSED) 10209c9e68d9Seric { 10219c9e68d9Seric if (tTd(11, 1)) 10229c9e68d9Seric { 10239c9e68d9Seric printf("openmailer: "); 10244052916eSeric mci_dump(mci, FALSE); 10259c9e68d9Seric } 10269c9e68d9Seric CurHostName = mci->mci_host; 10279c9e68d9Seric break; 10289c9e68d9Seric } 10299c9e68d9Seric mci->mci_mailer = m; 10309c9e68d9Seric if (mci->mci_exitstat != EX_OK) 10319c9e68d9Seric continue; 10329c9e68d9Seric 10339c9e68d9Seric /* try the connection */ 10349c9e68d9Seric setproctitle("%s %s: %s", e->e_id, hostbuf, "user open"); 10359c9e68d9Seric message("Connecting to %s (%s)...", 10369c9e68d9Seric hostbuf, m->m_name); 10379c9e68d9Seric i = makeconnection(hostbuf, port, mci, 10389c9e68d9Seric bitnset(M_SECURE_PORT, m->m_flags)); 10399c9e68d9Seric mci->mci_exitstat = i; 10409c9e68d9Seric mci->mci_errno = errno; 1041*9d4a8008Seric #if NAMED_BIND 1042f170942cSeric mci->mci_herrno = h_errno; 1043f170942cSeric #endif 10449c9e68d9Seric if (i == EX_OK) 10459c9e68d9Seric { 10469c9e68d9Seric mci->mci_state = MCIS_OPENING; 10479c9e68d9Seric mci_cache(mci); 1048f170942cSeric if (TrafficLogFile != NULL) 1049f170942cSeric fprintf(TrafficLogFile, "%05d == CONNECT %s\n", 1050f170942cSeric getpid(), hostbuf); 10519c9e68d9Seric break; 10529c9e68d9Seric } 10539c9e68d9Seric else if (tTd(11, 1)) 10549c9e68d9Seric printf("openmailer: makeconnection => stat=%d, errno=%d\n", 10559c9e68d9Seric i, errno); 10569c9e68d9Seric 10579c9e68d9Seric /* enter status of this host */ 10589c9e68d9Seric setstat(i); 1059df106f0bSeric 1060df106f0bSeric /* should print some message here for -v mode */ 1061df106f0bSeric } 1062df106f0bSeric if (mci == NULL) 1063df106f0bSeric { 1064df106f0bSeric syserr("deliver: no host name"); 1065df106f0bSeric rcode = EX_OSERR; 1066df106f0bSeric goto give_up; 10679c9e68d9Seric } 10689c9e68d9Seric mci->mci_pid = 0; 10699c9e68d9Seric #else /* no DAEMON */ 10709c9e68d9Seric syserr("554 openmailer: no IPC"); 10719c9e68d9Seric if (tTd(11, 1)) 10729c9e68d9Seric printf("openmailer: NULL\n"); 1073df106f0bSeric rcode = EX_UNAVAILABLE; 1074df106f0bSeric goto give_up; 10759c9e68d9Seric #endif /* DAEMON */ 10769c9e68d9Seric } 10779c9e68d9Seric else 10789c9e68d9Seric { 1079f170942cSeric if (TrafficLogFile != NULL) 10800e3bfef5Seric { 1081f170942cSeric char **av; 1082f170942cSeric 1083f170942cSeric fprintf(TrafficLogFile, "%05d === EXEC", getpid()); 1084f170942cSeric for (av = pv; *av != NULL; av++) 1085f170942cSeric fprintf(TrafficLogFile, " %s", *av); 1086f170942cSeric fprintf(TrafficLogFile, "\n"); 10876fe8c3bcSeric } 10886fe8c3bcSeric 10899c9e68d9Seric /* create a pipe to shove the mail through */ 10909c9e68d9Seric if (pipe(mpvect) < 0) 10919c9e68d9Seric { 10920e3bfef5Seric syserr("%s... openmailer(%s): pipe (to mailer)", 10930e3bfef5Seric e->e_to, m->m_name); 10949c9e68d9Seric if (tTd(11, 1)) 10959c9e68d9Seric printf("openmailer: NULL\n"); 10969c9e68d9Seric rcode = EX_OSERR; 10979c9e68d9Seric goto give_up; 10989c9e68d9Seric } 10999c9e68d9Seric 11009c9e68d9Seric /* if this mailer speaks smtp, create a return pipe */ 11019c9e68d9Seric if (clever && pipe(rpvect) < 0) 11029c9e68d9Seric { 11030e3bfef5Seric syserr("%s... openmailer(%s): pipe (from mailer)", 11040e3bfef5Seric e->e_to, m->m_name); 11059c9e68d9Seric (void) close(mpvect[0]); 11069c9e68d9Seric (void) close(mpvect[1]); 11079c9e68d9Seric if (tTd(11, 1)) 11089c9e68d9Seric printf("openmailer: NULL\n"); 11099c9e68d9Seric rcode = EX_OSERR; 11109c9e68d9Seric goto give_up; 11119c9e68d9Seric } 11129c9e68d9Seric 11139c9e68d9Seric /* 11149c9e68d9Seric ** Actually fork the mailer process. 11159c9e68d9Seric ** DOFORK is clever about retrying. 11169c9e68d9Seric ** 11179c9e68d9Seric ** Dispose of SIGCHLD signal catchers that may be laying 11189c9e68d9Seric ** around so that endmail will get it. 11199c9e68d9Seric */ 11209c9e68d9Seric 11219c9e68d9Seric if (e->e_xfp != NULL) 11229c9e68d9Seric (void) fflush(e->e_xfp); /* for debugging */ 11239c9e68d9Seric (void) fflush(stdout); 11249c9e68d9Seric # ifdef SIGCHLD 11252b9178d3Seric (void) setsignal(SIGCHLD, SIG_DFL); 11269c9e68d9Seric # endif /* SIGCHLD */ 11279c9e68d9Seric DOFORK(FORK); 11289c9e68d9Seric /* pid is set by DOFORK */ 11299c9e68d9Seric if (pid < 0) 11309c9e68d9Seric { 11319c9e68d9Seric /* failure */ 11320e3bfef5Seric syserr("%s... openmailer(%s): cannot fork", 11330e3bfef5Seric e->e_to, m->m_name); 11349c9e68d9Seric (void) close(mpvect[0]); 11359c9e68d9Seric (void) close(mpvect[1]); 11369c9e68d9Seric if (clever) 11379c9e68d9Seric { 11389c9e68d9Seric (void) close(rpvect[0]); 11399c9e68d9Seric (void) close(rpvect[1]); 11409c9e68d9Seric } 11419c9e68d9Seric if (tTd(11, 1)) 11429c9e68d9Seric printf("openmailer: NULL\n"); 11439c9e68d9Seric rcode = EX_OSERR; 11449c9e68d9Seric goto give_up; 11459c9e68d9Seric } 11469c9e68d9Seric else if (pid == 0) 11479c9e68d9Seric { 11489c9e68d9Seric int i; 11499c9e68d9Seric int saveerrno; 11509c9e68d9Seric char **ep; 11519c9e68d9Seric char *env[MAXUSERENVIRON]; 11529c9e68d9Seric extern char **environ; 11539c9e68d9Seric extern int DtableSize; 11549c9e68d9Seric 11559c9e68d9Seric /* child -- set up input & exec mailer */ 11562b9178d3Seric (void) setsignal(SIGINT, SIG_IGN); 11572b9178d3Seric (void) setsignal(SIGHUP, SIG_IGN); 11582b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 11599c9e68d9Seric 116044f2317fSeric /* reset user and group */ 116144f2317fSeric if (!bitnset(M_RESTR, m->m_flags)) 116244f2317fSeric { 116344f2317fSeric if (ctladdr == NULL || ctladdr->q_uid == 0) 116444f2317fSeric { 116544f2317fSeric (void) initgroups(DefUser, DefGid); 1166fc354902Seric (void) setgid(DefGid); 116744f2317fSeric (void) setuid(DefUid); 116844f2317fSeric } 116944f2317fSeric else 117044f2317fSeric { 117144f2317fSeric (void) initgroups(ctladdr->q_ruser? 117244f2317fSeric ctladdr->q_ruser: ctladdr->q_user, 117344f2317fSeric ctladdr->q_gid); 117451cfe111Seric (void) setgid(ctladdr->q_gid); 117544f2317fSeric (void) setuid(ctladdr->q_uid); 117644f2317fSeric } 117744f2317fSeric } 117844f2317fSeric 117944f2317fSeric if (tTd(11, 2)) 118044f2317fSeric printf("openmailer: running as r/euid=%d/%d\n", 118144f2317fSeric getuid(), geteuid()); 118244f2317fSeric 1183b986f6aaSeric /* move into some "safe" directory */ 1184b986f6aaSeric if (m->m_execdir != NULL) 1185b986f6aaSeric { 1186b986f6aaSeric char *p, *q; 1187b986f6aaSeric char buf[MAXLINE]; 1188b986f6aaSeric 1189b986f6aaSeric for (p = m->m_execdir; p != NULL; p = q) 1190b986f6aaSeric { 1191b986f6aaSeric q = strchr(p, ':'); 1192b986f6aaSeric if (q != NULL) 1193b986f6aaSeric *q = '\0'; 1194b986f6aaSeric expand(p, buf, &buf[sizeof buf] - 1, e); 1195b986f6aaSeric if (q != NULL) 1196b986f6aaSeric *q++ = ':'; 1197b986f6aaSeric if (tTd(11, 20)) 1198b986f6aaSeric printf("openmailer: trydir %s\n", 1199b986f6aaSeric buf); 1200b986f6aaSeric if (buf[0] != '\0' && chdir(buf) >= 0) 1201b986f6aaSeric break; 1202b986f6aaSeric } 1203b986f6aaSeric } 1204b986f6aaSeric 12059c9e68d9Seric /* arrange to filter std & diag output of command */ 12069c9e68d9Seric if (clever) 12079c9e68d9Seric { 12089c9e68d9Seric (void) close(rpvect[0]); 12096fe8c3bcSeric if (dup2(rpvect[1], STDOUT_FILENO) < 0) 12106fe8c3bcSeric { 12110e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdout", 12120e3bfef5Seric e->e_to, m->m_name, rpvect[1]); 12136fe8c3bcSeric _exit(EX_OSERR); 12146fe8c3bcSeric } 12159c9e68d9Seric (void) close(rpvect[1]); 12169c9e68d9Seric } 12178b40b0a4Seric else if (OpMode == MD_SMTP || OpMode == MD_DAEMON || 12188b40b0a4Seric HoldErrs || DisConnected) 12199c9e68d9Seric { 12209c9e68d9Seric /* put mailer output in transcript */ 12216fe8c3bcSeric if (dup2(fileno(e->e_xfp), STDOUT_FILENO) < 0) 12226fe8c3bcSeric { 12230e3bfef5Seric syserr("%s... openmailer(%s): cannot dup xscript %d for stdout", 12240e3bfef5Seric e->e_to, m->m_name, 12256fe8c3bcSeric fileno(e->e_xfp)); 12266fe8c3bcSeric _exit(EX_OSERR); 12279c9e68d9Seric } 12286fe8c3bcSeric } 12296fe8c3bcSeric if (dup2(STDOUT_FILENO, STDERR_FILENO) < 0) 12306fe8c3bcSeric { 12310e3bfef5Seric syserr("%s... openmailer(%s): cannot dup stdout for stderr", 12320e3bfef5Seric e->e_to, m->m_name); 12336fe8c3bcSeric _exit(EX_OSERR); 12346fe8c3bcSeric } 12359c9e68d9Seric 12369c9e68d9Seric /* arrange to get standard input */ 12379c9e68d9Seric (void) close(mpvect[1]); 12389c9e68d9Seric if (dup2(mpvect[0], STDIN_FILENO) < 0) 12399c9e68d9Seric { 12400e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdin", 12410e3bfef5Seric e->e_to, m->m_name, mpvect[0]); 12429c9e68d9Seric _exit(EX_OSERR); 12439c9e68d9Seric } 12449c9e68d9Seric (void) close(mpvect[0]); 12459c9e68d9Seric 12469c9e68d9Seric /* arrange for all the files to be closed */ 12479c9e68d9Seric for (i = 3; i < DtableSize; i++) 12489c9e68d9Seric { 12499c9e68d9Seric register int j; 125044f2317fSeric 12519c9e68d9Seric if ((j = fcntl(i, F_GETFD, 0)) != -1) 12529c9e68d9Seric (void) fcntl(i, F_SETFD, j | 1); 12539c9e68d9Seric } 12549c9e68d9Seric 12559f9b003eSeric /* 12569f9b003eSeric ** Set up the mailer environment 12579f9b003eSeric ** TZ is timezone information. 12589f9b003eSeric ** SYSTYPE is Apollo software sys type (required). 12599f9b003eSeric ** ISP is Apollo hardware system type (required). 12609f9b003eSeric */ 12619f9b003eSeric 12629c9e68d9Seric i = 0; 12639c9e68d9Seric env[i++] = "AGENT=sendmail"; 12649c9e68d9Seric for (ep = environ; *ep != NULL; ep++) 12659c9e68d9Seric { 12669f9b003eSeric if (strncmp(*ep, "TZ=", 3) == 0 || 12679f9b003eSeric strncmp(*ep, "ISP=", 4) == 0 || 12689f9b003eSeric strncmp(*ep, "SYSTYPE=", 8) == 0) 12699c9e68d9Seric env[i++] = *ep; 12709c9e68d9Seric } 12719c9e68d9Seric env[i++] = NULL; 12729c9e68d9Seric 12739c9e68d9Seric /* try to execute the mailer */ 12749c9e68d9Seric execve(m->m_mailer, pv, env); 12759c9e68d9Seric saveerrno = errno; 12769c9e68d9Seric syserr("Cannot exec %s", m->m_mailer); 12777c941fd2Seric if (m == LocalMailer || transienterror(saveerrno)) 12787c941fd2Seric _exit(EX_OSERR); 12799c9e68d9Seric _exit(EX_UNAVAILABLE); 12809c9e68d9Seric } 12819c9e68d9Seric 12829c9e68d9Seric /* 12839c9e68d9Seric ** Set up return value. 12849c9e68d9Seric */ 12859c9e68d9Seric 12869c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 12879c9e68d9Seric bzero((char *) mci, sizeof *mci); 12889c9e68d9Seric mci->mci_mailer = m; 12899c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 12909c9e68d9Seric mci->mci_pid = pid; 12919c9e68d9Seric (void) close(mpvect[0]); 12929c9e68d9Seric mci->mci_out = fdopen(mpvect[1], "w"); 1293335eae58Seric if (mci->mci_out == NULL) 1294335eae58Seric { 1295335eae58Seric syserr("deliver: cannot create mailer output channel, fd=%d", 1296335eae58Seric mpvect[1]); 1297335eae58Seric (void) close(mpvect[1]); 1298335eae58Seric if (clever) 1299335eae58Seric { 1300335eae58Seric (void) close(rpvect[0]); 1301335eae58Seric (void) close(rpvect[1]); 1302335eae58Seric } 1303335eae58Seric rcode = EX_OSERR; 1304335eae58Seric goto give_up; 1305335eae58Seric } 13069c9e68d9Seric if (clever) 13079c9e68d9Seric { 13089c9e68d9Seric (void) close(rpvect[1]); 13099c9e68d9Seric mci->mci_in = fdopen(rpvect[0], "r"); 1310335eae58Seric if (mci->mci_in == NULL) 1311335eae58Seric { 1312335eae58Seric syserr("deliver: cannot create mailer input channel, fd=%d", 1313335eae58Seric mpvect[1]); 1314335eae58Seric (void) close(rpvect[0]); 1315335eae58Seric fclose(mci->mci_out); 1316335eae58Seric mci->mci_out = NULL; 1317335eae58Seric rcode = EX_OSERR; 1318335eae58Seric goto give_up; 1319335eae58Seric } 13209c9e68d9Seric } 13219c9e68d9Seric else 13229c9e68d9Seric { 13239c9e68d9Seric mci->mci_flags |= MCIF_TEMP; 13249c9e68d9Seric mci->mci_in = NULL; 13259c9e68d9Seric } 13269c9e68d9Seric } 13279c9e68d9Seric 13289c9e68d9Seric /* 13299c9e68d9Seric ** If we are in SMTP opening state, send initial protocol. 13309c9e68d9Seric */ 13319c9e68d9Seric 13329c9e68d9Seric if (clever && mci->mci_state != MCIS_CLOSED) 13339c9e68d9Seric { 13349c9e68d9Seric smtpinit(m, mci, e); 13359c9e68d9Seric } 13369c9e68d9Seric if (tTd(11, 1)) 13379c9e68d9Seric { 13389c9e68d9Seric printf("openmailer: "); 13394052916eSeric mci_dump(mci, FALSE); 13409c9e68d9Seric } 13419c9e68d9Seric 13429c9e68d9Seric if (mci->mci_state != MCIS_OPEN) 1343b31e7f2bSeric { 1344b31e7f2bSeric /* couldn't open the mailer */ 1345b31e7f2bSeric rcode = mci->mci_exitstat; 13462a6bc25bSeric errno = mci->mci_errno; 1347*9d4a8008Seric #if NAMED_BIND 1348f170942cSeric h_errno = mci->mci_herrno; 1349f170942cSeric #endif 1350b31e7f2bSeric if (rcode == EX_OK) 1351b31e7f2bSeric { 1352b31e7f2bSeric /* shouldn't happen */ 135308b25121Seric syserr("554 deliver: rcode=%d, mci_state=%d, sig=%s", 13546b0f339dSeric rcode, mci->mci_state, firstsig); 1355b31e7f2bSeric rcode = EX_SOFTWARE; 1356b31e7f2bSeric } 1357cb082c5bSeric else if (rcode == EX_TEMPFAIL && curhost != NULL && *curhost != '\0') 135890891494Seric { 135990891494Seric /* try next MX site */ 136090891494Seric goto tryhost; 136190891494Seric } 1362b31e7f2bSeric } 1363b31e7f2bSeric else if (!clever) 1364b31e7f2bSeric { 1365b31e7f2bSeric /* 1366b31e7f2bSeric ** Format and send message. 1367b31e7f2bSeric */ 136815d084d5Seric 13695aa0f353Seric putfromline(mci, e); 13705aa0f353Seric (*e->e_puthdr)(mci, e); 13715aa0f353Seric putline("\n", mci); 13725aa0f353Seric (*e->e_putbody)(mci, e, NULL); 1373b31e7f2bSeric 1374b31e7f2bSeric /* get the exit status */ 1375c9be6216Seric rcode = endmailer(mci, e, pv); 1376134746fbSeric } 1377134746fbSeric else 1378b31e7f2bSeric #ifdef SMTP 1379134746fbSeric { 1380b31e7f2bSeric /* 1381b31e7f2bSeric ** Send the MAIL FROM: protocol 1382b31e7f2bSeric */ 138315d084d5Seric 1384b31e7f2bSeric rcode = smtpmailfrom(m, mci, e); 1385b31e7f2bSeric if (rcode == EX_OK) 138675889e88Seric { 1387ded0d3daSkarels register char *t = tobuf; 1388ded0d3daSkarels register int i; 1389ded0d3daSkarels 1390588cad61Seric /* send the recipient list */ 139163780dbdSeric tobuf[0] = '\0'; 139275889e88Seric for (to = tochain; to != NULL; to = to->q_tchain) 139375889e88Seric { 139463780dbdSeric e->e_to = to->q_paddr; 139515d084d5Seric if ((i = smtprcpt(to, m, mci, e)) != EX_OK) 139675889e88Seric { 139783b7ddc9Seric markfailure(e, to, i); 13984dee0003Seric giveresponse(i, m, mci, ctladdr, e); 139963780dbdSeric } 140075889e88Seric else 140175889e88Seric { 1402911693bfSbostic *t++ = ','; 1403b31e7f2bSeric for (p = to->q_paddr; *p; *t++ = *p++) 1404b31e7f2bSeric continue; 1405ee39df61Seric *t = '\0'; 1406588cad61Seric } 1407588cad61Seric } 1408588cad61Seric 140963780dbdSeric /* now send the data */ 141063780dbdSeric if (tobuf[0] == '\0') 1411b31e7f2bSeric { 14129c9e68d9Seric rcode = EX_OK; 141363780dbdSeric e->e_to = NULL; 1414b31e7f2bSeric if (bitset(MCIF_CACHED, mci->mci_flags)) 1415b31e7f2bSeric smtprset(m, mci, e); 1416b31e7f2bSeric } 141775889e88Seric else 141875889e88Seric { 141963780dbdSeric e->e_to = tobuf + 1; 142075889e88Seric rcode = smtpdata(m, mci, e); 142163780dbdSeric } 142263780dbdSeric 142363780dbdSeric /* now close the connection */ 1424b31e7f2bSeric if (!bitset(MCIF_CACHED, mci->mci_flags)) 142515d084d5Seric smtpquit(m, mci, e); 142663780dbdSeric } 1427cb082c5bSeric if (rcode != EX_OK && curhost != NULL && *curhost != '\0') 14289c9e68d9Seric { 14299c9e68d9Seric /* try next MX site */ 14309c9e68d9Seric goto tryhost; 14319c9e68d9Seric } 1432c579ef51Seric } 1433b31e7f2bSeric #else /* not SMTP */ 1434a05b3449Sbostic { 143508b25121Seric syserr("554 deliver: need SMTP compiled to use clever mailer"); 1436845e533cSeric rcode = EX_CONFIG; 1437b31e7f2bSeric goto give_up; 1438a05b3449Sbostic } 1439b31e7f2bSeric #endif /* SMTP */ 1440*9d4a8008Seric #if NAMED_BIND 14412bcc6d2dSeric if (ConfigLevel < 2) 1442912a731aSbostic _res.options |= RES_DEFNAMES | RES_DNSRCH; /* XXX */ 1443134746fbSeric #endif 14445dfc646bSeric 1445b31e7f2bSeric /* arrange a return receipt if requested */ 1446df106f0bSeric if (rcode == EX_OK && e->e_receiptto != NULL && 1447df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1448b31e7f2bSeric { 1449b31e7f2bSeric e->e_flags |= EF_SENDRECEIPT; 1450b31e7f2bSeric /* do we want to send back more info? */ 1451b31e7f2bSeric } 1452b31e7f2bSeric 1453c77d1c25Seric /* 145463780dbdSeric ** Do final status disposal. 145563780dbdSeric ** We check for something in tobuf for the SMTP case. 1456c77d1c25Seric ** If we got a temporary failure, arrange to queue the 1457c77d1c25Seric ** addressees. 1458c77d1c25Seric */ 1459c77d1c25Seric 1460b31e7f2bSeric give_up: 146163780dbdSeric if (tobuf[0] != '\0') 14624dee0003Seric giveresponse(rcode, m, mci, ctladdr, e); 1463772e6e50Seric for (to = tochain; to != NULL; to = to->q_tchain) 1464b31e7f2bSeric { 1465dde5acadSeric if (rcode != EX_OK) 146683b7ddc9Seric markfailure(e, to, rcode); 1467dde5acadSeric else 1468655518ecSeric { 1469dde5acadSeric to->q_flags |= QSENT; 1470655518ecSeric e->e_nsent++; 1471df106f0bSeric if (e->e_receiptto != NULL && 1472df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1473df106f0bSeric { 1474df106f0bSeric fprintf(e->e_xfp, "%s... Successfully delivered\n", 1475df106f0bSeric to->q_paddr); 1476df106f0bSeric } 1477655518ecSeric } 1478b31e7f2bSeric } 1479b31e7f2bSeric 1480b31e7f2bSeric /* 1481b31e7f2bSeric ** Restore state and return. 1482b31e7f2bSeric */ 1483c77d1c25Seric 14847febfd66Seric #ifdef XDEBUG 14857febfd66Seric { 14867febfd66Seric char wbuf[MAXLINE]; 14877febfd66Seric 14887febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 148944622ea3Seric sprintf(wbuf, "%s... end of deliver(%s)", 149044622ea3Seric e->e_to == NULL ? "NO-TO-LIST" : e->e_to, 149144622ea3Seric m->m_name); 14927febfd66Seric checkfd012(wbuf); 14937febfd66Seric } 14947febfd66Seric #endif 14957febfd66Seric 149635490626Seric errno = 0; 1497588cad61Seric define('g', (char *) NULL, e); 14985826d9d3Seric return (rcode); 149925a99e2eSeric } 15005dfc646bSeric /* 150183b7ddc9Seric ** MARKFAILURE -- mark a failure on a specific address. 150283b7ddc9Seric ** 150383b7ddc9Seric ** Parameters: 150483b7ddc9Seric ** e -- the envelope we are sending. 150583b7ddc9Seric ** q -- the address to mark. 150683b7ddc9Seric ** rcode -- the code signifying the particular failure. 150783b7ddc9Seric ** 150883b7ddc9Seric ** Returns: 150983b7ddc9Seric ** none. 151083b7ddc9Seric ** 151183b7ddc9Seric ** Side Effects: 151283b7ddc9Seric ** marks the address (and possibly the envelope) with the 151383b7ddc9Seric ** failure so that an error will be returned or 151483b7ddc9Seric ** the message will be queued, as appropriate. 151583b7ddc9Seric */ 151683b7ddc9Seric 151783b7ddc9Seric markfailure(e, q, rcode) 151883b7ddc9Seric register ENVELOPE *e; 151983b7ddc9Seric register ADDRESS *q; 152083b7ddc9Seric int rcode; 152183b7ddc9Seric { 152219c47125Seric char buf[MAXLINE]; 152319c47125Seric 1524d5aafa3cSeric switch (rcode) 1525d5aafa3cSeric { 1526d5aafa3cSeric case EX_OK: 1527d5aafa3cSeric break; 1528d5aafa3cSeric 1529d5aafa3cSeric case EX_TEMPFAIL: 1530d5aafa3cSeric case EX_IOERR: 1531d5aafa3cSeric case EX_OSERR: 153283b7ddc9Seric q->q_flags |= QQUEUEUP; 1533d5aafa3cSeric break; 1534d5aafa3cSeric 1535d5aafa3cSeric default: 1536f170942cSeric q->q_flags |= QBADADDR; 1537d5aafa3cSeric break; 1538d5aafa3cSeric } 153983b7ddc9Seric } 154083b7ddc9Seric /* 1541c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 1542c579ef51Seric ** 1543c579ef51Seric ** We should never get fatal errors (e.g., segmentation 1544c579ef51Seric ** violation), so we report those specially. For other 1545c579ef51Seric ** errors, we choose a status message (into statmsg), 1546c579ef51Seric ** and if it represents an error, we print it. 1547c579ef51Seric ** 1548c579ef51Seric ** Parameters: 1549c579ef51Seric ** pid -- pid of mailer. 1550c9be6216Seric ** e -- the current envelope. 1551c9be6216Seric ** pv -- the parameter vector that invoked the mailer 1552c9be6216Seric ** (for error messages). 1553c579ef51Seric ** 1554c579ef51Seric ** Returns: 1555c579ef51Seric ** exit code of mailer. 1556c579ef51Seric ** 1557c579ef51Seric ** Side Effects: 1558c579ef51Seric ** none. 1559c579ef51Seric */ 1560c579ef51Seric 1561c9be6216Seric endmailer(mci, e, pv) 1562b31e7f2bSeric register MCI *mci; 1563c9be6216Seric register ENVELOPE *e; 1564c9be6216Seric char **pv; 1565c579ef51Seric { 1566588cad61Seric int st; 1567c579ef51Seric 156875889e88Seric /* close any connections */ 156975889e88Seric if (mci->mci_in != NULL) 157076f3d53fSeric (void) xfclose(mci->mci_in, mci->mci_mailer->m_name, "mci_in"); 157175889e88Seric if (mci->mci_out != NULL) 157276f3d53fSeric (void) xfclose(mci->mci_out, mci->mci_mailer->m_name, "mci_out"); 157375889e88Seric mci->mci_in = mci->mci_out = NULL; 157475889e88Seric mci->mci_state = MCIS_CLOSED; 157575889e88Seric 157633db8731Seric /* in the IPC case there is nothing to wait for */ 157775889e88Seric if (mci->mci_pid == 0) 157833db8731Seric return (EX_OK); 157933db8731Seric 158033db8731Seric /* wait for the mailer process to die and collect status */ 158175889e88Seric st = waitfor(mci->mci_pid); 1582588cad61Seric if (st == -1) 158378de67c1Seric { 1584c9be6216Seric syserr("endmailer %s: wait", pv[0]); 1585588cad61Seric return (EX_SOFTWARE); 1586c579ef51Seric } 158733db8731Seric 1588bf9bc890Seric if (WIFEXITED(st)) 1589c579ef51Seric { 1590bf9bc890Seric /* normal death -- return status */ 1591bf9bc890Seric return (WEXITSTATUS(st)); 1592bf9bc890Seric } 1593bf9bc890Seric 1594bf9bc890Seric /* it died a horrid death */ 1595550092c3Seric syserr("451 mailer %s died with signal %o", 1596550092c3Seric mci->mci_mailer->m_name, st); 1597c9be6216Seric 1598c9be6216Seric /* log the arguments */ 15993c930db3Seric if (pv != NULL && e->e_xfp != NULL) 1600c9be6216Seric { 1601c9be6216Seric register char **av; 1602c9be6216Seric 1603c9be6216Seric fprintf(e->e_xfp, "Arguments:"); 1604c9be6216Seric for (av = pv; *av != NULL; av++) 1605c9be6216Seric fprintf(e->e_xfp, " %s", *av); 1606c9be6216Seric fprintf(e->e_xfp, "\n"); 1607c9be6216Seric } 1608c9be6216Seric 16095f73204aSeric ExitStat = EX_TEMPFAIL; 16105f73204aSeric return (EX_TEMPFAIL); 1611c579ef51Seric } 1612c579ef51Seric /* 161325a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 161425a99e2eSeric ** 161525a99e2eSeric ** Parameters: 161625a99e2eSeric ** stat -- the status code from the mailer (high byte 161725a99e2eSeric ** only; core dumps must have been taken care of 161825a99e2eSeric ** already). 161981161401Seric ** m -- the mailer info for this mailer. 162081161401Seric ** mci -- the mailer connection info -- can be NULL if the 162181161401Seric ** response is given before the connection is made. 16224dee0003Seric ** ctladdr -- the controlling address for the recipient 16234dee0003Seric ** address(es). 162481161401Seric ** e -- the current envelope. 162525a99e2eSeric ** 162625a99e2eSeric ** Returns: 1627db8841e9Seric ** none. 162825a99e2eSeric ** 162925a99e2eSeric ** Side Effects: 1630c1f9df2cSeric ** Errors may be incremented. 163125a99e2eSeric ** ExitStat may be set. 163225a99e2eSeric */ 163325a99e2eSeric 16344dee0003Seric giveresponse(stat, m, mci, ctladdr, e) 163525a99e2eSeric int stat; 1636588cad61Seric register MAILER *m; 163781161401Seric register MCI *mci; 16384dee0003Seric ADDRESS *ctladdr; 1639198d9be0Seric ENVELOPE *e; 164025a99e2eSeric { 16419c16475dSeric register const char *statmsg; 164225a99e2eSeric extern char *SysExMsg[]; 164325a99e2eSeric register int i; 1644d4bd8f0eSbostic extern int N_SysEx; 1645198d9be0Seric char buf[MAXLINE]; 164625a99e2eSeric 164713bbc08cSeric /* 164813bbc08cSeric ** Compute status message from code. 164913bbc08cSeric */ 165013bbc08cSeric 165125a99e2eSeric i = stat - EX__BASE; 1652588cad61Seric if (stat == 0) 16536fe8c3bcSeric { 1654588cad61Seric statmsg = "250 Sent"; 1655ce5531bdSeric if (e->e_statmsg != NULL) 16566fe8c3bcSeric { 1657ce5531bdSeric (void) sprintf(buf, "%s (%s)", statmsg, e->e_statmsg); 16586fe8c3bcSeric statmsg = buf; 16596fe8c3bcSeric } 16606fe8c3bcSeric } 1661588cad61Seric else if (i < 0 || i > N_SysEx) 1662588cad61Seric { 1663588cad61Seric (void) sprintf(buf, "554 unknown mailer error %d", stat); 1664588cad61Seric stat = EX_UNAVAILABLE; 1665588cad61Seric statmsg = buf; 1666588cad61Seric } 1667198d9be0Seric else if (stat == EX_TEMPFAIL) 1668198d9be0Seric { 16697d55540cSeric (void) strcpy(buf, SysExMsg[i] + 1); 1670*9d4a8008Seric #if NAMED_BIND 1671f28da541Smiriam if (h_errno == TRY_AGAIN) 16724d50702aSeric statmsg = errstring(h_errno+E_DNSBASE); 1673f28da541Smiriam else 1674d4bd8f0eSbostic #endif 1675f28da541Smiriam { 16768557d168Seric if (errno != 0) 1677d87e85f3Seric statmsg = errstring(errno); 1678d87e85f3Seric else 1679d87e85f3Seric { 1680d87e85f3Seric #ifdef SMTP 1681d87e85f3Seric statmsg = SmtpError; 16826c2c3107Seric #else /* SMTP */ 1683d87e85f3Seric statmsg = NULL; 16846c2c3107Seric #endif /* SMTP */ 1685d87e85f3Seric } 1686f28da541Smiriam } 1687d87e85f3Seric if (statmsg != NULL && statmsg[0] != '\0') 1688d87e85f3Seric { 168987c9b3e7Seric (void) strcat(buf, ": "); 1690d87e85f3Seric (void) strcat(buf, statmsg); 16918557d168Seric } 1692198d9be0Seric statmsg = buf; 1693198d9be0Seric } 1694*9d4a8008Seric #if NAMED_BIND 1695f170942cSeric else if (stat == EX_NOHOST && h_errno != 0) 1696f170942cSeric { 16974d50702aSeric statmsg = errstring(h_errno + E_DNSBASE); 1698f170942cSeric (void) sprintf(buf, "%s (%s)", SysExMsg[i], statmsg); 1699f170942cSeric statmsg = buf; 1700f170942cSeric } 1701f170942cSeric #endif 170225a99e2eSeric else 1703d87e85f3Seric { 170425a99e2eSeric statmsg = SysExMsg[i]; 17057d55540cSeric if (*statmsg++ == ':') 17067d55540cSeric { 17077d55540cSeric (void) sprintf(buf, "%s: %s", statmsg, errstring(errno)); 17087d55540cSeric statmsg = buf; 17097d55540cSeric } 1710d87e85f3Seric } 1711588cad61Seric 1712588cad61Seric /* 1713588cad61Seric ** Print the message as appropriate 1714588cad61Seric */ 1715588cad61Seric 1716198d9be0Seric if (stat == EX_OK || stat == EX_TEMPFAIL) 1717df106f0bSeric { 1718df106f0bSeric extern char MsgBuf[]; 1719df106f0bSeric 17201f96bd0bSeric message("%s", &statmsg[4]); 1721df106f0bSeric if (stat == EX_TEMPFAIL && e->e_xfp != NULL) 1722df106f0bSeric fprintf(e->e_xfp, "%s\n", &MsgBuf[4]); 1723df106f0bSeric } 172425a99e2eSeric else 172525a99e2eSeric { 1726c1f9df2cSeric Errors++; 1727e12d03eeSeric usrerr(statmsg, errstring(errno)); 172825a99e2eSeric } 172925a99e2eSeric 173025a99e2eSeric /* 173125a99e2eSeric ** Final cleanup. 173225a99e2eSeric ** Log a record of the transaction. Compute the new 173325a99e2eSeric ** ExitStat -- if we already had an error, stick with 173425a99e2eSeric ** that. 173525a99e2eSeric */ 173625a99e2eSeric 17372f624c86Seric if (LogLevel > ((stat == EX_TEMPFAIL) ? 8 : (stat == EX_OK) ? 7 : 6)) 17384dee0003Seric logdelivery(m, mci, &statmsg[4], ctladdr, e); 1739eb238f8cSeric 17405d3f0ed4Seric if (tTd(11, 2)) 17415d3f0ed4Seric printf("giveresponse: stat=%d, e->e_message=%s\n", 17425d3f0ed4Seric stat, e->e_message); 17435d3f0ed4Seric 1744eb238f8cSeric if (stat != EX_TEMPFAIL) 1745eb238f8cSeric setstat(stat); 17461097d4c9Seric if (stat != EX_OK && (stat != EX_TEMPFAIL || e->e_message == NULL)) 1747198d9be0Seric { 1748198d9be0Seric if (e->e_message != NULL) 1749198d9be0Seric free(e->e_message); 1750198d9be0Seric e->e_message = newstr(&statmsg[4]); 1751198d9be0Seric } 17528557d168Seric errno = 0; 1753*9d4a8008Seric #if NAMED_BIND 1754f28da541Smiriam h_errno = 0; 1755d4bd8f0eSbostic #endif 1756eb238f8cSeric } 1757eb238f8cSeric /* 1758eb238f8cSeric ** LOGDELIVERY -- log the delivery in the system log 1759eb238f8cSeric ** 17602c9b4f99Seric ** Care is taken to avoid logging lines that are too long, because 17612c9b4f99Seric ** some versions of syslog have an unfortunate proclivity for core 17622c9b4f99Seric ** dumping. This is a hack, to be sure, that is at best empirical. 17632c9b4f99Seric ** 1764eb238f8cSeric ** Parameters: 176581161401Seric ** m -- the mailer info. Can be NULL for initial queue. 176681161401Seric ** mci -- the mailer connection info -- can be NULL if the 176781161401Seric ** log is occuring when no connection is active. 176881161401Seric ** stat -- the message to print for the status. 17694dee0003Seric ** ctladdr -- the controlling address for the to list. 177081161401Seric ** e -- the current envelope. 1771eb238f8cSeric ** 1772eb238f8cSeric ** Returns: 1773eb238f8cSeric ** none 1774eb238f8cSeric ** 1775eb238f8cSeric ** Side Effects: 1776eb238f8cSeric ** none 1777eb238f8cSeric */ 1778eb238f8cSeric 17794dee0003Seric logdelivery(m, mci, stat, ctladdr, e) 178081161401Seric MAILER *m; 178181161401Seric register MCI *mci; 1782eb238f8cSeric char *stat; 17834dee0003Seric ADDRESS *ctladdr; 1784b31e7f2bSeric register ENVELOPE *e; 17855cf56be3Seric { 1786eb238f8cSeric # ifdef LOG 17874dee0003Seric register char *bp; 17882c9b4f99Seric register char *p; 17892c9b4f99Seric int l; 1790d6acf3eeSeric char buf[512]; 17919507d1f9Seric 17923a100e8bSeric # if (SYSLOG_BUFSIZE) >= 256 17934dee0003Seric bp = buf; 17944dee0003Seric if (ctladdr != NULL) 17954dee0003Seric { 17964dee0003Seric strcpy(bp, ", ctladdr="); 1797f62f08c7Seric strcat(bp, shortenstring(ctladdr->q_paddr, 83)); 17984dee0003Seric bp += strlen(bp); 17994dee0003Seric if (bitset(QGOODUID, ctladdr->q_flags)) 18004dee0003Seric { 18014dee0003Seric (void) sprintf(bp, " (%d/%d)", 18024dee0003Seric ctladdr->q_uid, ctladdr->q_gid); 18034dee0003Seric bp += strlen(bp); 18044dee0003Seric } 18054dee0003Seric } 18064dee0003Seric 18074dee0003Seric (void) sprintf(bp, ", delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 18084dee0003Seric bp += strlen(bp); 180981161401Seric 181048ed5d33Seric if (m != NULL) 181171ff6caaSeric { 18124dee0003Seric (void) strcpy(bp, ", mailer="); 18134dee0003Seric (void) strcat(bp, m->m_name); 18144dee0003Seric bp += strlen(bp); 181571ff6caaSeric } 181648ed5d33Seric 181748ed5d33Seric if (mci != NULL && mci->mci_host != NULL) 181871ff6caaSeric { 181971ff6caaSeric # ifdef DAEMON 1820e2f2f828Seric extern SOCKADDR CurHostAddr; 182148ed5d33Seric # endif 182271ff6caaSeric 18234dee0003Seric (void) strcpy(bp, ", relay="); 18244dee0003Seric (void) strcat(bp, mci->mci_host); 182548ed5d33Seric 182648ed5d33Seric # ifdef DAEMON 18272bdfc6b9Seric (void) strcat(bp, " ["); 18284dee0003Seric (void) strcat(bp, anynet_ntoa(&CurHostAddr)); 18292bdfc6b9Seric (void) strcat(bp, "]"); 183071ff6caaSeric # endif 183171ff6caaSeric } 18329507d1f9Seric else 183348ed5d33Seric { 183448ed5d33Seric char *p = macvalue('h', e); 18359507d1f9Seric 183648ed5d33Seric if (p != NULL && p[0] != '\0') 183748ed5d33Seric { 18384dee0003Seric (void) strcpy(bp, ", relay="); 18394dee0003Seric (void) strcat(bp, p); 184048ed5d33Seric } 184148ed5d33Seric } 1842cb082c5bSeric bp += strlen(bp); 1843d6acf3eeSeric 18443a100e8bSeric #define STATLEN (((SYSLOG_BUFSIZE) - 100) / 4) 18453a100e8bSeric #if (STATLEN) < 63 18463a100e8bSeric # undef STATLEN 18473a100e8bSeric # define STATLEN 63 18483a100e8bSeric #endif 18493a100e8bSeric #if (STATLEN) > 203 18503a100e8bSeric # undef STATLEN 18513a100e8bSeric # define STATLEN 203 18523a100e8bSeric #endif 18533a100e8bSeric 18543a100e8bSeric if ((bp - buf) > (sizeof buf - ((STATLEN) + 20))) 18552c9b4f99Seric { 18562c9b4f99Seric /* desperation move -- truncate data */ 18573a100e8bSeric bp = buf + sizeof buf - ((STATLEN) + 17); 18582c9b4f99Seric strcpy(bp, "..."); 18592c9b4f99Seric bp += 3; 18602c9b4f99Seric } 18612c9b4f99Seric 18622c9b4f99Seric (void) strcpy(bp, ", stat="); 18632c9b4f99Seric bp += strlen(bp); 18643a100e8bSeric 18653a100e8bSeric (void) strcpy(bp, shortenstring(stat, (STATLEN))); 18662c9b4f99Seric 18672c9b4f99Seric l = SYSLOG_BUFSIZE - 100 - strlen(buf); 18682c9b4f99Seric p = e->e_to; 18692c9b4f99Seric while (strlen(p) >= l) 18702c9b4f99Seric { 18712c9b4f99Seric register char *q = strchr(p + l, ','); 18722c9b4f99Seric 18732a1b6b73Seric if (q == NULL) 18742c9b4f99Seric break; 18752c9b4f99Seric syslog(LOG_INFO, "%s: to=%.*s [more]%s", 18762c9b4f99Seric e->e_id, ++q - p, p, buf); 18772c9b4f99Seric p = q; 18782c9b4f99Seric } 18792c9b4f99Seric syslog(LOG_INFO, "%s: to=%s%s", e->e_id, p, buf); 18803a100e8bSeric 18813a100e8bSeric # else /* we have a very short log buffer size */ 18823a100e8bSeric 188327607809Seric l = SYSLOG_BUFSIZE - 85; 18843a100e8bSeric p = e->e_to; 18853a100e8bSeric while (strlen(p) >= l) 18863a100e8bSeric { 18873a100e8bSeric register char *q = strchr(p + l, ','); 18883a100e8bSeric 18893a100e8bSeric if (q == NULL) 18903a100e8bSeric break; 18913a100e8bSeric syslog(LOG_INFO, "%s: to=%.*s [more]", 18923a100e8bSeric e->e_id, ++q - p, p); 18933a100e8bSeric p = q; 18943a100e8bSeric } 18953a100e8bSeric syslog(LOG_INFO, "%s: to=%s", e->e_id, p); 18963a100e8bSeric 18973a100e8bSeric if (ctladdr != NULL) 18983a100e8bSeric { 18993a100e8bSeric bp = buf; 19003a100e8bSeric strcpy(buf, "ctladdr="); 19013a100e8bSeric bp += strlen(buf); 19023a100e8bSeric strcpy(bp, shortenstring(ctladdr->q_paddr, 83)); 19033a100e8bSeric bp += strlen(buf); 19043a100e8bSeric if (bitset(QGOODUID, ctladdr->q_flags)) 19053a100e8bSeric { 19063a100e8bSeric (void) sprintf(bp, " (%d/%d)", 19073a100e8bSeric ctladdr->q_uid, ctladdr->q_gid); 19083a100e8bSeric bp += strlen(bp); 19093a100e8bSeric } 19103a100e8bSeric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19113a100e8bSeric } 19124e797715Seric bp = buf; 19134e797715Seric sprintf(bp, "delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 19144e797715Seric bp += strlen(bp); 19153a100e8bSeric 19163a100e8bSeric if (m != NULL) 19174e797715Seric { 19184e797715Seric sprintf(bp, ", mailer=%s", m->m_name); 19194e797715Seric bp += strlen(bp); 19204e797715Seric } 1921b056abd0Seric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19223a100e8bSeric 1923b056abd0Seric buf[0] = '\0'; 19243a100e8bSeric if (mci != NULL && mci->mci_host != NULL) 19253a100e8bSeric { 19263a100e8bSeric # ifdef DAEMON 19273a100e8bSeric extern SOCKADDR CurHostAddr; 19283a100e8bSeric # endif 19293a100e8bSeric 1930d2ece200Seric sprintf(buf, "relay=%s", mci->mci_host); 19313a100e8bSeric 19323a100e8bSeric # ifdef DAEMON 1933b056abd0Seric (void) strcat(buf, " ["); 1934b056abd0Seric (void) strcat(buf, anynet_ntoa(&CurHostAddr)); 1935b056abd0Seric (void) strcat(buf, "]"); 19363a100e8bSeric # endif 19373a100e8bSeric } 19383a100e8bSeric else 19393a100e8bSeric { 19403a100e8bSeric char *p = macvalue('h', e); 19413a100e8bSeric 19423a100e8bSeric if (p != NULL && p[0] != '\0') 1943d2ece200Seric sprintf(buf, "relay=%s", p); 19443a100e8bSeric } 1945b056abd0Seric if (buf[0] != '\0') 19464e797715Seric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19473a100e8bSeric 19483a100e8bSeric syslog(LOG_INFO, "%s: stat=%s", e->e_id, shortenstring(stat, 63)); 19493a100e8bSeric # endif /* short log buffer */ 19506c2c3107Seric # endif /* LOG */ 195125a99e2eSeric } 195225a99e2eSeric /* 195351552439Seric ** PUTFROMLINE -- output a UNIX-style from line (or whatever) 195425a99e2eSeric ** 195551552439Seric ** This can be made an arbitrary message separator by changing $l 195651552439Seric ** 19579b6c17a6Seric ** One of the ugliest hacks seen by human eyes is contained herein: 19589b6c17a6Seric ** UUCP wants those stupid "remote from <host>" lines. Why oh why 19599b6c17a6Seric ** does a well-meaning programmer such as myself have to deal with 19609b6c17a6Seric ** this kind of antique garbage???? 196125a99e2eSeric ** 196225a99e2eSeric ** Parameters: 19635aa0f353Seric ** mci -- the connection information. 19645aa0f353Seric ** e -- the envelope. 196525a99e2eSeric ** 196625a99e2eSeric ** Returns: 196751552439Seric ** none 196825a99e2eSeric ** 196925a99e2eSeric ** Side Effects: 197051552439Seric ** outputs some text to fp. 197125a99e2eSeric */ 197225a99e2eSeric 19735aa0f353Seric putfromline(mci, e) 19745aa0f353Seric register MCI *mci; 1975b31e7f2bSeric ENVELOPE *e; 197625a99e2eSeric { 19772bc47524Seric char *template = "\201l\n"; 197851552439Seric char buf[MAXLINE]; 197925a99e2eSeric 19805aa0f353Seric if (bitnset(M_NHDR, mci->mci_mailer->m_flags)) 198151552439Seric return; 198213bbc08cSeric 19832c7e1b8dSeric # ifdef UGLYUUCP 19845aa0f353Seric if (bitnset(M_UGLYUUCP, mci->mci_mailer->m_flags)) 198574b6e67bSeric { 1986ea09d6edSeric char *bang; 1987ea09d6edSeric char xbuf[MAXLINE]; 198874b6e67bSeric 1989ee4b0922Seric expand("\201g", buf, &buf[sizeof buf - 1], e); 19906c2c3107Seric bang = strchr(buf, '!'); 199174b6e67bSeric if (bang == NULL) 199234fcca25Seric { 199334fcca25Seric errno = 0; 199434fcca25Seric syserr("554 No ! in UUCP From address! (%s given)", buf); 199534fcca25Seric } 199674b6e67bSeric else 1997588cad61Seric { 1998ea09d6edSeric *bang++ = '\0'; 19992bc47524Seric (void) sprintf(xbuf, "From %s \201d remote from %s\n", bang, buf); 2000ea09d6edSeric template = xbuf; 200174b6e67bSeric } 2002588cad61Seric } 20036c2c3107Seric # endif /* UGLYUUCP */ 2004b31e7f2bSeric expand(template, buf, &buf[sizeof buf - 1], e); 20055aa0f353Seric putline(buf, mci); 2006bc6e2962Seric } 2007bc6e2962Seric /* 200851552439Seric ** PUTBODY -- put the body of a message. 200951552439Seric ** 201051552439Seric ** Parameters: 20115aa0f353Seric ** mci -- the connection information. 20129a6a5f55Seric ** e -- the envelope to put out. 201303c02fdeSeric ** separator -- if non-NULL, a message separator that must 201403c02fdeSeric ** not be permitted in the resulting message. 201551552439Seric ** 201651552439Seric ** Returns: 201751552439Seric ** none. 201851552439Seric ** 201951552439Seric ** Side Effects: 202051552439Seric ** The message is written onto fp. 202151552439Seric */ 202251552439Seric 20235aa0f353Seric putbody(mci, e, separator) 20245aa0f353Seric register MCI *mci; 20259a6a5f55Seric register ENVELOPE *e; 202603c02fdeSeric char *separator; 202751552439Seric { 202877b52738Seric char buf[MAXLINE]; 202951552439Seric 203051552439Seric /* 203151552439Seric ** Output the body of the message 203251552439Seric */ 203351552439Seric 20349a6a5f55Seric if (e->e_dfp == NULL) 203551552439Seric { 20369a6a5f55Seric if (e->e_df != NULL) 20379a6a5f55Seric { 20389a6a5f55Seric e->e_dfp = fopen(e->e_df, "r"); 20399a6a5f55Seric if (e->e_dfp == NULL) 20408f9146b0Srick syserr("putbody: Cannot open %s for %s from %s", 2041e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 20429a6a5f55Seric } 20439a6a5f55Seric else 20445aa0f353Seric putline("<<< No Message Collected >>>", mci); 20459a6a5f55Seric } 20469a6a5f55Seric if (e->e_dfp != NULL) 20479a6a5f55Seric { 20489a6a5f55Seric rewind(e->e_dfp); 20495aa0f353Seric while (!ferror(mci->mci_out) && fgets(buf, sizeof buf, e->e_dfp) != NULL) 205024fc8aeeSeric { 20515aa0f353Seric if (buf[0] == 'F' && 20525aa0f353Seric bitnset(M_ESCFROM, mci->mci_mailer->m_flags) && 2053d6fa2b58Sbostic strncmp(buf, "From ", 5) == 0) 20545aa0f353Seric (void) putc('>', mci->mci_out); 205503c02fdeSeric if (buf[0] == '-' && buf[1] == '-' && separator != NULL) 205603c02fdeSeric { 205703c02fdeSeric /* possible separator */ 205803c02fdeSeric int sl = strlen(separator); 205903c02fdeSeric 206003c02fdeSeric if (strncmp(&buf[2], separator, sl) == 0) 20615aa0f353Seric (void) putc(' ', mci->mci_out); 206203c02fdeSeric } 20635aa0f353Seric putline(buf, mci); 206424fc8aeeSeric } 206551552439Seric 20669a6a5f55Seric if (ferror(e->e_dfp)) 206751552439Seric { 2068df106f0bSeric syserr("putbody: %s: read error", e->e_df); 206951552439Seric ExitStat = EX_IOERR; 207051552439Seric } 207151552439Seric } 207251552439Seric 20730890ba1fSeric /* some mailers want extra blank line at end of message */ 20745aa0f353Seric if (bitnset(M_BLANKEND, mci->mci_mailer->m_flags) && 20755aa0f353Seric buf[0] != '\0' && buf[0] != '\n') 20765aa0f353Seric putline("", mci); 20770890ba1fSeric 20785aa0f353Seric (void) fflush(mci->mci_out); 20795aa0f353Seric if (ferror(mci->mci_out) && errno != EPIPE) 208051552439Seric { 208151552439Seric syserr("putbody: write error"); 208251552439Seric ExitStat = EX_IOERR; 208351552439Seric } 208451552439Seric errno = 0; 208525a99e2eSeric } 208625a99e2eSeric /* 208725a99e2eSeric ** MAILFILE -- Send a message to a file. 208825a99e2eSeric ** 2089f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 2090f129ec7dSeric ** bits, sendmail will try to become the owner of that file 2091f129ec7dSeric ** rather than the real user. Obviously, this only works if 2092f129ec7dSeric ** sendmail runs as root. 2093f129ec7dSeric ** 2094588cad61Seric ** This could be done as a subordinate mailer, except that it 2095588cad61Seric ** is used implicitly to save messages in ~/dead.letter. We 2096588cad61Seric ** view this as being sufficiently important as to include it 2097588cad61Seric ** here. For example, if the system is dying, we shouldn't have 2098588cad61Seric ** to create another process plus some pipes to save the message. 2099588cad61Seric ** 210025a99e2eSeric ** Parameters: 210125a99e2eSeric ** filename -- the name of the file to send to. 21026259796dSeric ** ctladdr -- the controlling address header -- includes 21036259796dSeric ** the userid/groupid to be when sending. 210425a99e2eSeric ** 210525a99e2eSeric ** Returns: 210625a99e2eSeric ** The exit code associated with the operation. 210725a99e2eSeric ** 210825a99e2eSeric ** Side Effects: 210925a99e2eSeric ** none. 211025a99e2eSeric */ 211125a99e2eSeric 2112b31e7f2bSeric mailfile(filename, ctladdr, e) 211325a99e2eSeric char *filename; 21146259796dSeric ADDRESS *ctladdr; 2115b31e7f2bSeric register ENVELOPE *e; 211625a99e2eSeric { 211725a99e2eSeric register FILE *f; 211832d19d43Seric register int pid; 211915d084d5Seric int mode; 212025a99e2eSeric 2121671745f3Seric if (tTd(11, 1)) 2122671745f3Seric { 2123671745f3Seric printf("mailfile %s\n ctladdr=", filename); 2124671745f3Seric printaddr(ctladdr, FALSE); 2125671745f3Seric } 2126671745f3Seric 2127f170942cSeric if (e->e_xfp != NULL) 2128f170942cSeric fflush(e->e_xfp); 2129f170942cSeric 213032d19d43Seric /* 213132d19d43Seric ** Fork so we can change permissions here. 213232d19d43Seric ** Note that we MUST use fork, not vfork, because of 213332d19d43Seric ** the complications of calling subroutines, etc. 213432d19d43Seric */ 213532d19d43Seric 213632d19d43Seric DOFORK(fork); 213732d19d43Seric 213832d19d43Seric if (pid < 0) 213932d19d43Seric return (EX_OSERR); 214032d19d43Seric else if (pid == 0) 214132d19d43Seric { 214232d19d43Seric /* child -- actually write to file */ 2143f129ec7dSeric struct stat stb; 21445aa0f353Seric MCI mcibuf; 2145f129ec7dSeric 21462b9178d3Seric (void) setsignal(SIGINT, SIG_DFL); 21472b9178d3Seric (void) setsignal(SIGHUP, SIG_DFL); 21482b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 21493462ad9eSeric (void) umask(OldUmask); 215095f16dc0Seric 2151f129ec7dSeric if (stat(filename, &stb) < 0) 21523a98e7eaSeric stb.st_mode = FileMode; 215315d084d5Seric mode = stb.st_mode; 215495f16dc0Seric 215595f16dc0Seric /* limit the errors to those actually caused in the child */ 215695f16dc0Seric errno = 0; 215795f16dc0Seric ExitStat = EX_OK; 215895f16dc0Seric 2159f129ec7dSeric if (bitset(0111, stb.st_mode)) 2160f129ec7dSeric exit(EX_CANTCREAT); 216119428781Seric if (ctladdr != NULL) 216215d084d5Seric { 216315d084d5Seric /* ignore setuid and setgid bits */ 216415d084d5Seric mode &= ~(S_ISGID|S_ISUID); 216515d084d5Seric } 216615d084d5Seric 21678f9146b0Srick /* we have to open the dfile BEFORE setuid */ 21688f9146b0Srick if (e->e_dfp == NULL && e->e_df != NULL) 21698f9146b0Srick { 21708f9146b0Srick e->e_dfp = fopen(e->e_df, "r"); 217195f16dc0Seric if (e->e_dfp == NULL) 217295f16dc0Seric { 21738f9146b0Srick syserr("mailfile: Cannot open %s for %s from %s", 2174e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 21758f9146b0Srick } 21768f9146b0Srick } 21778f9146b0Srick 217815d084d5Seric if (!bitset(S_ISGID, mode) || setgid(stb.st_gid) < 0) 2179e36b99e2Seric { 218019428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 218195f16dc0Seric { 2182898a126bSbostic (void) initgroups(DefUser, DefGid); 218395f16dc0Seric } 218495f16dc0Seric else 218595f16dc0Seric { 2186898a126bSbostic (void) initgroups(ctladdr->q_ruser ? 2187898a126bSbostic ctladdr->q_ruser : ctladdr->q_user, 2188898a126bSbostic ctladdr->q_gid); 2189898a126bSbostic } 2190e36b99e2Seric } 219115d084d5Seric if (!bitset(S_ISUID, mode) || setuid(stb.st_uid) < 0) 2192e36b99e2Seric { 219319428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 2194e36b99e2Seric (void) setuid(DefUid); 2195e36b99e2Seric else 21966259796dSeric (void) setuid(ctladdr->q_uid); 2197e36b99e2Seric } 219895f16dc0Seric FileName = filename; 219995f16dc0Seric LineNumber = 0; 22003a98e7eaSeric f = dfopen(filename, O_WRONLY|O_CREAT|O_APPEND, FileMode); 220125a99e2eSeric if (f == NULL) 220295f16dc0Seric { 2203b6a0de9dSeric message("554 cannot open: %s", errstring(errno)); 220432d19d43Seric exit(EX_CANTCREAT); 220595f16dc0Seric } 220625a99e2eSeric 22075aa0f353Seric bzero(&mcibuf, sizeof mcibuf); 22085aa0f353Seric mcibuf.mci_mailer = FileMailer; 22095aa0f353Seric mcibuf.mci_out = f; 22105aa0f353Seric if (bitnset(M_7BITS, FileMailer->m_flags)) 22115aa0f353Seric mcibuf.mci_flags |= MCIF_7BIT; 22125aa0f353Seric 22135aa0f353Seric putfromline(&mcibuf, e); 22145aa0f353Seric (*e->e_puthdr)(&mcibuf, e); 22155aa0f353Seric putline("\n", &mcibuf); 22165aa0f353Seric (*e->e_putbody)(&mcibuf, e, NULL); 22175aa0f353Seric putline("\n", &mcibuf); 221895f16dc0Seric if (ferror(f)) 221995f16dc0Seric { 2220b6a0de9dSeric message("451 I/O error: %s", errstring(errno)); 222195f16dc0Seric setstat(EX_IOERR); 222295f16dc0Seric } 2223ee4b0922Seric (void) xfclose(f, "mailfile", filename); 222432d19d43Seric (void) fflush(stdout); 2225e36b99e2Seric 222627628d59Seric /* reset ISUID & ISGID bits for paranoid systems */ 2227c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 222895f16dc0Seric exit(ExitStat); 222913bbc08cSeric /*NOTREACHED*/ 223032d19d43Seric } 223132d19d43Seric else 223232d19d43Seric { 223332d19d43Seric /* parent -- wait for exit status */ 2234588cad61Seric int st; 223532d19d43Seric 2236588cad61Seric st = waitfor(pid); 2237bf9bc890Seric if (WIFEXITED(st)) 2238bf9bc890Seric return (WEXITSTATUS(st)); 2239588cad61Seric else 2240b6a0de9dSeric { 2241b6a0de9dSeric syserr("child died on signal %d", st); 2242bf9bc890Seric return (EX_UNAVAILABLE); 2243b6a0de9dSeric } 22448f9146b0Srick /*NOTREACHED*/ 224532d19d43Seric } 224625a99e2eSeric } 2247ea4dc939Seric /* 2248e103b48fSeric ** HOSTSIGNATURE -- return the "signature" for a host. 2249e103b48fSeric ** 2250e103b48fSeric ** The signature describes how we are going to send this -- it 2251e103b48fSeric ** can be just the hostname (for non-Internet hosts) or can be 2252e103b48fSeric ** an ordered list of MX hosts. 2253e103b48fSeric ** 2254e103b48fSeric ** Parameters: 2255e103b48fSeric ** m -- the mailer describing this host. 2256e103b48fSeric ** host -- the host name. 2257e103b48fSeric ** e -- the current envelope. 2258e103b48fSeric ** 2259e103b48fSeric ** Returns: 2260e103b48fSeric ** The signature for this host. 2261e103b48fSeric ** 2262e103b48fSeric ** Side Effects: 2263e103b48fSeric ** Can tweak the symbol table. 2264e103b48fSeric */ 2265e103b48fSeric 2266e103b48fSeric char * 2267e103b48fSeric hostsignature(m, host, e) 2268e103b48fSeric register MAILER *m; 2269e103b48fSeric char *host; 2270e103b48fSeric ENVELOPE *e; 2271e103b48fSeric { 2272e103b48fSeric register char *p; 2273e103b48fSeric register STAB *s; 2274e103b48fSeric int i; 2275e103b48fSeric int len; 2276*9d4a8008Seric #if NAMED_BIND 2277e103b48fSeric int nmx; 2278e103b48fSeric auto int rcode; 2279bafdc4e5Seric char *hp; 2280bafdc4e5Seric char *endp; 2281516782b4Seric int oldoptions; 2282e103b48fSeric char *mxhosts[MAXMXHOSTS + 1]; 2283e103b48fSeric #endif 2284e103b48fSeric 2285e103b48fSeric /* 2286e103b48fSeric ** Check to see if this uses IPC -- if not, it can't have MX records. 2287e103b48fSeric */ 2288e103b48fSeric 2289e103b48fSeric p = m->m_mailer; 2290e103b48fSeric if (strcmp(p, "[IPC]") != 0 && strcmp(p, "[TCP]") != 0) 2291e103b48fSeric { 2292e103b48fSeric /* just an ordinary mailer */ 2293e103b48fSeric return host; 2294e103b48fSeric } 2295e103b48fSeric 2296e103b48fSeric /* 2297e103b48fSeric ** Look it up in the symbol table. 2298e103b48fSeric */ 2299e103b48fSeric 2300e103b48fSeric s = stab(host, ST_HOSTSIG, ST_ENTER); 2301e103b48fSeric if (s->s_hostsig != NULL) 2302e103b48fSeric return s->s_hostsig; 2303e103b48fSeric 2304e103b48fSeric /* 2305e103b48fSeric ** Not already there -- create a signature. 2306e103b48fSeric */ 2307e103b48fSeric 2308*9d4a8008Seric #if NAMED_BIND 2309516782b4Seric if (ConfigLevel < 2) 2310516782b4Seric { 2311516782b4Seric oldoptions = _res.options; 2312516782b4Seric _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 2313516782b4Seric } 2314516782b4Seric 2315bafdc4e5Seric for (hp = host; hp != NULL; hp = endp) 2316bafdc4e5Seric { 2317bafdc4e5Seric endp = strchr(hp, ':'); 2318bafdc4e5Seric if (endp != NULL) 2319bafdc4e5Seric *endp = '\0'; 2320bafdc4e5Seric 23217bf809e6Seric nmx = getmxrr(hp, mxhosts, TRUE, &rcode); 23227d55540cSeric 2323e103b48fSeric if (nmx <= 0) 2324e103b48fSeric { 2325e103b48fSeric register MCI *mci; 2326e103b48fSeric 2327e103b48fSeric /* update the connection info for this host */ 2328bafdc4e5Seric mci = mci_get(hp, m); 2329e103b48fSeric mci->mci_exitstat = rcode; 2330e103b48fSeric mci->mci_errno = errno; 2331*9d4a8008Seric #if NAMED_BIND 2332f170942cSeric mci->mci_herrno = h_errno; 2333f170942cSeric #endif 2334e103b48fSeric 2335e103b48fSeric /* and return the original host name as the signature */ 2336bafdc4e5Seric nmx = 1; 2337bafdc4e5Seric mxhosts[0] = hp; 2338e103b48fSeric } 2339e103b48fSeric 2340e103b48fSeric len = 0; 2341e103b48fSeric for (i = 0; i < nmx; i++) 2342e103b48fSeric { 2343e103b48fSeric len += strlen(mxhosts[i]) + 1; 2344e103b48fSeric } 2345bafdc4e5Seric if (s->s_hostsig != NULL) 2346bafdc4e5Seric len += strlen(s->s_hostsig) + 1; 2347bafdc4e5Seric p = xalloc(len); 2348bafdc4e5Seric if (s->s_hostsig != NULL) 2349bafdc4e5Seric { 2350bafdc4e5Seric (void) strcpy(p, s->s_hostsig); 2351bafdc4e5Seric free(s->s_hostsig); 2352bafdc4e5Seric s->s_hostsig = p; 2353bafdc4e5Seric p += strlen(p); 2354bafdc4e5Seric *p++ = ':'; 2355bafdc4e5Seric } 2356bafdc4e5Seric else 2357bafdc4e5Seric s->s_hostsig = p; 2358e103b48fSeric for (i = 0; i < nmx; i++) 2359e103b48fSeric { 2360e103b48fSeric if (i != 0) 2361e103b48fSeric *p++ = ':'; 2362e103b48fSeric strcpy(p, mxhosts[i]); 2363e103b48fSeric p += strlen(p); 2364e103b48fSeric } 2365bafdc4e5Seric if (endp != NULL) 2366bafdc4e5Seric *endp++ = ':'; 2367bafdc4e5Seric } 2368e103b48fSeric makelower(s->s_hostsig); 2369516782b4Seric if (ConfigLevel < 2) 2370516782b4Seric _res.options = oldoptions; 2371e103b48fSeric #else 2372e103b48fSeric /* not using BIND -- the signature is just the host name */ 2373e103b48fSeric s->s_hostsig = host; 2374e103b48fSeric #endif 2375e103b48fSeric if (tTd(17, 1)) 2376e103b48fSeric printf("hostsignature(%s) = %s\n", host, s->s_hostsig); 2377e103b48fSeric return s->s_hostsig; 2378e103b48fSeric } 2379