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*2bdfc6b9Seric static char sccsid[] = "@(#)deliver.c 8.66 (Berkeley) 01/27/94"; 11e70a7521Sbostic #endif /* not lint */ 124227346bSdist 13fcde9cc8Sbostic #include "sendmail.h" 14f28da541Smiriam #include <netdb.h> 15911693bfSbostic #include <errno.h> 16134746fbSeric #ifdef NAMED_BIND 17912a731aSbostic #include <arpa/nameser.h> 18912a731aSbostic #include <resolv.h> 19f170942cSeric 20f170942cSeric extern int h_errno; 21134746fbSeric #endif 2225a99e2eSeric 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; 509c9e68d9Seric register ENVELOPE *ee; 519c9e68d9Seric 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; 1014bb8b0fdSeric syserr("554 too many hops %d (%d max): from %s via %s, to %s", 1029c9e68d9Seric e->e_hopcount, MaxHopCount, e->e_from.q_paddr, 1034bb8b0fdSeric RealHostName, e->e_sendqueue->q_paddr); 1049c9e68d9Seric return; 1059c9e68d9Seric } 1069c9e68d9Seric 107b8004690Seric /* 108b8004690Seric ** Do sender deletion. 109b8004690Seric ** 110b8004690Seric ** If the sender has the QQUEUEUP flag set, skip this. 111b8004690Seric ** This can happen if the name server is hosed when you 112b8004690Seric ** are trying to send mail. The result is that the sender 113b8004690Seric ** is instantiated in the queue as a recipient. 114b8004690Seric */ 115b8004690Seric 116e76a6a8fSeric if (!bitset(EF_METOO, e->e_flags) && 117e76a6a8fSeric !bitset(QQUEUEUP, e->e_from.q_flags)) 1189c9e68d9Seric { 1199c9e68d9Seric if (tTd(13, 5)) 1209c9e68d9Seric { 1219c9e68d9Seric printf("sendall: QDONTSEND "); 1229c9e68d9Seric printaddr(&e->e_from, FALSE); 1239c9e68d9Seric } 1249c9e68d9Seric e->e_from.q_flags |= QDONTSEND; 1259c9e68d9Seric (void) recipient(&e->e_from, &e->e_sendqueue, e); 1269c9e68d9Seric } 1279c9e68d9Seric 128ce5531bdSeric /* 129ce5531bdSeric ** Handle alias owners. 130ce5531bdSeric ** 131ce5531bdSeric ** We scan up the q_alias chain looking for owners. 132ce5531bdSeric ** We discard owners that are the same as the return path. 133ce5531bdSeric */ 134ce5531bdSeric 135ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 136ce5531bdSeric { 137ce5531bdSeric register struct address *a; 138ce5531bdSeric 139ce5531bdSeric for (a = q; a != NULL && a->q_owner == NULL; a = a->q_alias) 140ce5531bdSeric continue; 141ce5531bdSeric if (a != NULL) 142ce5531bdSeric q->q_owner = a->q_owner; 143ce5531bdSeric 144ce5531bdSeric if (q->q_owner != NULL && 145ce5531bdSeric !bitset(QDONTSEND, q->q_flags) && 146ce5531bdSeric strcmp(q->q_owner, e->e_from.q_paddr) == 0) 147ce5531bdSeric q->q_owner = NULL; 148ce5531bdSeric } 149ce5531bdSeric 150ce5531bdSeric owner = ""; 151ce5531bdSeric otherowners = 1; 152ce5531bdSeric while (owner != NULL && otherowners > 0) 153ce5531bdSeric { 154ce5531bdSeric owner = NULL; 155ce5531bdSeric otherowners = 0; 156ce5531bdSeric 157ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 158ce5531bdSeric { 159ce5531bdSeric if (bitset(QDONTSEND, q->q_flags)) 160ce5531bdSeric continue; 161ce5531bdSeric 162ce5531bdSeric if (q->q_owner != NULL) 163ce5531bdSeric { 164ce5531bdSeric if (owner == NULL) 165ce5531bdSeric owner = q->q_owner; 166ce5531bdSeric else if (owner != q->q_owner) 167ce5531bdSeric { 168ce5531bdSeric if (strcmp(owner, q->q_owner) == 0) 169ce5531bdSeric { 170ce5531bdSeric /* make future comparisons cheap */ 171ce5531bdSeric q->q_owner = owner; 172ce5531bdSeric } 173ce5531bdSeric else 174ce5531bdSeric { 175ce5531bdSeric otherowners++; 176ce5531bdSeric } 177ce5531bdSeric owner = q->q_owner; 178ce5531bdSeric } 179ce5531bdSeric } 180ce5531bdSeric else 181ce5531bdSeric { 182ce5531bdSeric otherowners++; 183ce5531bdSeric } 184ce5531bdSeric } 185ce5531bdSeric 186ce5531bdSeric if (owner != NULL && otherowners > 0) 187ce5531bdSeric { 188ce5531bdSeric extern HDR *copyheader(); 189ce5531bdSeric extern ADDRESS *copyqueue(); 190ce5531bdSeric 191ce5531bdSeric /* 192ce5531bdSeric ** Split this envelope into two. 193ce5531bdSeric */ 194ce5531bdSeric 195ce5531bdSeric ee = (ENVELOPE *) xalloc(sizeof(ENVELOPE)); 196ce5531bdSeric *ee = *e; 197ce5531bdSeric ee->e_id = NULL; 198ce5531bdSeric (void) queuename(ee, '\0'); 199ce5531bdSeric 200ce5531bdSeric if (tTd(13, 1)) 201ce5531bdSeric printf("sendall: split %s into %s\n", 202ce5531bdSeric e->e_id, ee->e_id); 203ce5531bdSeric 204ce5531bdSeric ee->e_header = copyheader(e->e_header); 205ce5531bdSeric ee->e_sendqueue = copyqueue(e->e_sendqueue); 206ce5531bdSeric ee->e_errorqueue = copyqueue(e->e_errorqueue); 207ce5531bdSeric ee->e_flags = e->e_flags & ~(EF_INQUEUE|EF_CLRQUEUE|EF_FATALERRS); 208ce5531bdSeric setsender(owner, ee, NULL, TRUE); 209ce5531bdSeric if (tTd(13, 5)) 210ce5531bdSeric { 211ce5531bdSeric printf("sendall(split): QDONTSEND "); 212ce5531bdSeric printaddr(&ee->e_from, FALSE); 213ce5531bdSeric } 214ce5531bdSeric ee->e_from.q_flags |= QDONTSEND; 215ce5531bdSeric ee->e_dfp = NULL; 216ce5531bdSeric ee->e_xfp = NULL; 217ce5531bdSeric ee->e_df = NULL; 218ce5531bdSeric ee->e_errormode = EM_MAIL; 219ce5531bdSeric ee->e_sibling = splitenv; 220ce5531bdSeric splitenv = ee; 221ce5531bdSeric 222ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 223ce5531bdSeric if (q->q_owner == owner) 224ce5531bdSeric q->q_flags |= QDONTSEND; 225ce5531bdSeric for (q = ee->e_sendqueue; q != NULL; q = q->q_next) 226ce5531bdSeric if (q->q_owner != owner) 227ce5531bdSeric q->q_flags |= QDONTSEND; 228ce5531bdSeric 229ce5531bdSeric if (e->e_df != NULL && mode != SM_VERIFY) 230ce5531bdSeric { 231ce5531bdSeric ee->e_dfp = NULL; 232da662164Seric ee->e_df = queuename(ee, 'd'); 233da662164Seric ee->e_df = newstr(ee->e_df); 234ce5531bdSeric if (link(e->e_df, ee->e_df) < 0) 235ce5531bdSeric { 236ce5531bdSeric syserr("sendall: link(%s, %s)", 237ce5531bdSeric e->e_df, ee->e_df); 238ce5531bdSeric } 239ce5531bdSeric } 240ce5531bdSeric 241ce5531bdSeric if (mode != SM_VERIFY) 242ce5531bdSeric openxscript(ee); 243ce5531bdSeric #ifdef LOG 244ce5531bdSeric if (LogLevel > 4) 245ce5531bdSeric syslog(LOG_INFO, "%s: clone %s", 246ce5531bdSeric ee->e_id, e->e_id); 247ce5531bdSeric #endif 248ce5531bdSeric } 249ce5531bdSeric } 250ce5531bdSeric 251ce5531bdSeric if (owner != NULL) 252ce5531bdSeric { 253ce5531bdSeric setsender(owner, e, NULL, TRUE); 254ce5531bdSeric if (tTd(13, 5)) 255ce5531bdSeric { 256ce5531bdSeric printf("sendall(owner): QDONTSEND "); 257ce5531bdSeric printaddr(&e->e_from, FALSE); 258ce5531bdSeric } 259ce5531bdSeric e->e_from.q_flags |= QDONTSEND; 260ce5531bdSeric e->e_errormode = EM_MAIL; 261ce5531bdSeric } 262ce5531bdSeric 263c1ac89b1Seric # ifdef QUEUE 264c1ac89b1Seric if ((mode == SM_QUEUE || mode == SM_FORK || 265c1ac89b1Seric (mode != SM_VERIFY && SuperSafe)) && 266c1ac89b1Seric !bitset(EF_INQUEUE, e->e_flags)) 267c1ac89b1Seric { 268c1ac89b1Seric /* be sure everything is instantiated in the queue */ 2696103d9b4Seric queueup(e, TRUE, announcequeueup); 270ce5531bdSeric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 2716103d9b4Seric queueup(ee, TRUE, announcequeueup); 272c1ac89b1Seric } 273c1ac89b1Seric #endif /* QUEUE */ 274c1ac89b1Seric 275ce5531bdSeric if (splitenv != NULL) 276ce5531bdSeric { 277ce5531bdSeric if (tTd(13, 1)) 278ce5531bdSeric { 279ce5531bdSeric printf("\nsendall: Split queue; remaining queue:\n"); 280ce5531bdSeric printaddr(e->e_sendqueue, TRUE); 281ce5531bdSeric } 282ce5531bdSeric 283ce5531bdSeric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 284ce5531bdSeric { 285ce5531bdSeric CurEnv = ee; 286ce5531bdSeric sendenvelope(ee, mode); 287ce5531bdSeric } 288ce5531bdSeric 289ce5531bdSeric CurEnv = e; 290ce5531bdSeric } 291ce5531bdSeric sendenvelope(e, mode); 292ce5531bdSeric 293ce5531bdSeric for (; splitenv != NULL; splitenv = splitenv->e_sibling) 294ce5531bdSeric dropenvelope(splitenv); 295ce5531bdSeric } 296ce5531bdSeric 297ce5531bdSeric sendenvelope(e, mode) 298ce5531bdSeric register ENVELOPE *e; 299ce5531bdSeric char mode; 300ce5531bdSeric { 301ce5531bdSeric bool oldverbose; 302ce5531bdSeric int pid; 303ce5531bdSeric register ADDRESS *q; 3046b2765c6Seric char *qf; 3056b2765c6Seric char *id; 306ce5531bdSeric 3077880f3e4Seric /* 3087880f3e4Seric ** If we have had global, fatal errors, don't bother sending 3097880f3e4Seric ** the message at all if we are in SMTP mode. Local errors 3107880f3e4Seric ** (e.g., a single address failing) will still cause the other 3117880f3e4Seric ** addresses to be sent. 3127880f3e4Seric */ 3137880f3e4Seric 3148d19a23dSeric if (bitset(EF_FATALERRS, e->e_flags) && 3158d19a23dSeric (OpMode == MD_SMTP || OpMode == MD_DAEMON)) 3167880f3e4Seric { 3177880f3e4Seric e->e_flags |= EF_CLRQUEUE; 3187880f3e4Seric return; 3197880f3e4Seric } 3207880f3e4Seric 321ce5531bdSeric oldverbose = Verbose; 322c1ac89b1Seric switch (mode) 323c1ac89b1Seric { 324c1ac89b1Seric case SM_VERIFY: 325c1ac89b1Seric Verbose = TRUE; 326c1ac89b1Seric break; 327c1ac89b1Seric 328c1ac89b1Seric case SM_QUEUE: 329c1ac89b1Seric queueonly: 330c1ac89b1Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 331c1ac89b1Seric return; 332c1ac89b1Seric 333c1ac89b1Seric case SM_FORK: 334c1ac89b1Seric if (e->e_xfp != NULL) 335c1ac89b1Seric (void) fflush(e->e_xfp); 336c1ac89b1Seric 337b269aa8eSeric # if !HASFLOCK 338c1ac89b1Seric /* 3396b2765c6Seric ** Since fcntl locking has the interesting semantic that 3406b2765c6Seric ** the lock is owned by a process, not by an open file 3416b2765c6Seric ** descriptor, we have to flush this to the queue, and 3426b2765c6Seric ** then restart from scratch in the child. 343c1ac89b1Seric */ 344c1ac89b1Seric 3456b2765c6Seric /* save id for future use */ 3466b2765c6Seric id = e->e_id; 3476b2765c6Seric 3486b2765c6Seric /* now drop the envelope in the parent */ 3496b2765c6Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 3506b2765c6Seric dropenvelope(e); 3516b2765c6Seric 3526b2765c6Seric /* and reacquire in the child */ 3536b2765c6Seric (void) dowork(id, TRUE, FALSE, e); 3546b2765c6Seric 3556b2765c6Seric return; 3566b2765c6Seric 3576b2765c6Seric # else /* HASFLOCK */ 358c1ac89b1Seric 359c1ac89b1Seric pid = fork(); 360c1ac89b1Seric if (pid < 0) 361c1ac89b1Seric { 362c1ac89b1Seric goto queueonly; 363c1ac89b1Seric } 364c1ac89b1Seric else if (pid > 0) 365c1ac89b1Seric { 3660e484fe5Seric /* be sure we leave the temp files to our child */ 3670e484fe5Seric /* can't call unlockqueue to avoid unlink of xfp */ 3680e484fe5Seric if (e->e_lockfp != NULL) 3690e484fe5Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 3700e484fe5Seric e->e_lockfp = NULL; 3710e484fe5Seric 3720e484fe5Seric /* close any random open files in the envelope */ 3730e484fe5Seric closexscript(e); 3740e484fe5Seric if (e->e_dfp != NULL) 3750e484fe5Seric (void) xfclose(e->e_dfp, "sendenvelope", e->e_df); 3760e484fe5Seric e->e_dfp = NULL; 3770e484fe5Seric e->e_id = e->e_df = NULL; 378c1ac89b1Seric return; 379c1ac89b1Seric } 380c1ac89b1Seric 381c1ac89b1Seric /* double fork to avoid zombies */ 382c1ac89b1Seric if (fork() > 0) 383c1ac89b1Seric exit(EX_OK); 384c1ac89b1Seric 385c1ac89b1Seric /* be sure we are immune from the terminal */ 3867880f3e4Seric disconnect(1, e); 387c1ac89b1Seric 388c1ac89b1Seric /* 389c1ac89b1Seric ** Close any cached connections. 390c1ac89b1Seric ** 391c1ac89b1Seric ** We don't send the QUIT protocol because the parent 392c1ac89b1Seric ** still knows about the connection. 393c1ac89b1Seric ** 394c1ac89b1Seric ** This should only happen when delivering an error 395c1ac89b1Seric ** message. 396c1ac89b1Seric */ 397c1ac89b1Seric 398c1ac89b1Seric mci_flush(FALSE, NULL); 399c1ac89b1Seric 4006b2765c6Seric # endif /* HASFLOCK */ 4016b2765c6Seric 402c1ac89b1Seric break; 403c1ac89b1Seric } 404c1ac89b1Seric 405c1ac89b1Seric /* 4069c9e68d9Seric ** Run through the list and send everything. 4075288e21aSeric ** 4085288e21aSeric ** Set EF_GLOBALERRS so that error messages during delivery 4095288e21aSeric ** result in returned mail. 4109c9e68d9Seric */ 4119c9e68d9Seric 4129c9e68d9Seric e->e_nsent = 0; 4135288e21aSeric e->e_flags |= EF_GLOBALERRS; 414faad2b16Seric 415faad2b16Seric /* now run through the queue */ 4169c9e68d9Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 4179c9e68d9Seric { 418fdc75a0fSeric #ifdef XDEBUG 419fdc75a0fSeric char wbuf[MAXNAME + 20]; 420fdc75a0fSeric 421fdc75a0fSeric (void) sprintf(wbuf, "sendall(%s)", q->q_paddr); 422fdc75a0fSeric checkfd012(wbuf); 423fdc75a0fSeric #endif 4249c9e68d9Seric if (mode == SM_VERIFY) 4259c9e68d9Seric { 4269c9e68d9Seric e->e_to = q->q_paddr; 4279c9e68d9Seric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4288dfca105Seric { 429fafe46e1Seric if (q->q_host != NULL && q->q_host[0] != '\0') 4308dfca105Seric message("deliverable: mailer %s, host %s, user %s", 4318dfca105Seric q->q_mailer->m_name, 4328dfca105Seric q->q_host, 4338dfca105Seric q->q_user); 434fafe46e1Seric else 435fafe46e1Seric message("deliverable: mailer %s, user %s", 436fafe46e1Seric q->q_mailer->m_name, 437fafe46e1Seric q->q_user); 4388dfca105Seric } 4399c9e68d9Seric } 4409c9e68d9Seric else if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4419c9e68d9Seric { 4429c9e68d9Seric # ifdef QUEUE 4439c9e68d9Seric /* 4449c9e68d9Seric ** Checkpoint the send list every few addresses 4459c9e68d9Seric */ 4469c9e68d9Seric 4479c9e68d9Seric if (e->e_nsent >= CheckpointInterval) 4489c9e68d9Seric { 4499c9e68d9Seric queueup(e, TRUE, FALSE); 4509c9e68d9Seric e->e_nsent = 0; 4519c9e68d9Seric } 4529c9e68d9Seric # endif /* QUEUE */ 4539c9e68d9Seric (void) deliver(e, q); 4549c9e68d9Seric } 4559c9e68d9Seric } 4569c9e68d9Seric Verbose = oldverbose; 4579c9e68d9Seric 458fdc75a0fSeric #ifdef XDEBUG 459fdc75a0fSeric checkfd012("end of sendenvelope"); 460fdc75a0fSeric #endif 461fdc75a0fSeric 4629c9e68d9Seric if (mode == SM_FORK) 4639c9e68d9Seric finis(); 4649c9e68d9Seric } 4659c9e68d9Seric /* 4669c9e68d9Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 4679c9e68d9Seric ** 4689c9e68d9Seric ** This MUST be a macro, since after a vfork we are running 4699c9e68d9Seric ** two processes on the same stack!!! 4709c9e68d9Seric ** 4719c9e68d9Seric ** Parameters: 4729c9e68d9Seric ** none. 4739c9e68d9Seric ** 4749c9e68d9Seric ** Returns: 4759c9e68d9Seric ** From a macro??? You've got to be kidding! 4769c9e68d9Seric ** 4779c9e68d9Seric ** Side Effects: 4789c9e68d9Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 4799c9e68d9Seric ** pid of child in parent, zero in child. 4809c9e68d9Seric ** -1 on unrecoverable error. 4819c9e68d9Seric ** 4829c9e68d9Seric ** Notes: 4839c9e68d9Seric ** I'm awfully sorry this looks so awful. That's 4849c9e68d9Seric ** vfork for you..... 4859c9e68d9Seric */ 4869c9e68d9Seric 4879c9e68d9Seric # define NFORKTRIES 5 4889c9e68d9Seric 4899c9e68d9Seric # ifndef FORK 4909c9e68d9Seric # define FORK fork 4919c9e68d9Seric # endif 4929c9e68d9Seric 4939c9e68d9Seric # define DOFORK(fORKfN) \ 4949c9e68d9Seric {\ 4959c9e68d9Seric register int i;\ 4969c9e68d9Seric \ 4979c9e68d9Seric for (i = NFORKTRIES; --i >= 0; )\ 4989c9e68d9Seric {\ 4999c9e68d9Seric pid = fORKfN();\ 5009c9e68d9Seric if (pid >= 0)\ 5019c9e68d9Seric break;\ 5029c9e68d9Seric if (i > 0)\ 5039c9e68d9Seric sleep((unsigned) NFORKTRIES - i);\ 5049c9e68d9Seric }\ 5059c9e68d9Seric } 5069c9e68d9Seric /* 5079c9e68d9Seric ** DOFORK -- simple fork interface to DOFORK. 5089c9e68d9Seric ** 5099c9e68d9Seric ** Parameters: 5109c9e68d9Seric ** none. 5119c9e68d9Seric ** 5129c9e68d9Seric ** Returns: 5139c9e68d9Seric ** pid of child in parent. 5149c9e68d9Seric ** zero in child. 5159c9e68d9Seric ** -1 on error. 5169c9e68d9Seric ** 5179c9e68d9Seric ** Side Effects: 5189c9e68d9Seric ** returns twice, once in parent and once in child. 5199c9e68d9Seric */ 5209c9e68d9Seric 5219c9e68d9Seric dofork() 5229c9e68d9Seric { 5239c9e68d9Seric register int pid; 5249c9e68d9Seric 5259c9e68d9Seric DOFORK(fork); 5269c9e68d9Seric return (pid); 5279c9e68d9Seric } 5289c9e68d9Seric /* 52913bbc08cSeric ** DELIVER -- Deliver a message to a list of addresses. 53013bbc08cSeric ** 53113bbc08cSeric ** This routine delivers to everyone on the same host as the 53213bbc08cSeric ** user on the head of the list. It is clever about mailers 53313bbc08cSeric ** that don't handle multiple users. It is NOT guaranteed 53413bbc08cSeric ** that it will deliver to all these addresses however -- so 53513bbc08cSeric ** deliver should be called once for each address on the 53613bbc08cSeric ** list. 53725a99e2eSeric ** 53825a99e2eSeric ** Parameters: 539588cad61Seric ** e -- the envelope to deliver. 540c77d1c25Seric ** firstto -- head of the address list to deliver to. 54125a99e2eSeric ** 54225a99e2eSeric ** Returns: 54325a99e2eSeric ** zero -- successfully delivered. 54425a99e2eSeric ** else -- some failure, see ExitStat for more info. 54525a99e2eSeric ** 54625a99e2eSeric ** Side Effects: 54725a99e2eSeric ** The standard input is passed off to someone. 54825a99e2eSeric */ 54925a99e2eSeric 550588cad61Seric deliver(e, firstto) 551588cad61Seric register ENVELOPE *e; 552c77d1c25Seric ADDRESS *firstto; 55325a99e2eSeric { 55478442df3Seric char *host; /* host being sent to */ 55578442df3Seric char *user; /* user being sent to */ 55625a99e2eSeric char **pvp; 5575dfc646bSeric register char **mvp; 55825a99e2eSeric register char *p; 559588cad61Seric register MAILER *m; /* mailer for this recipient */ 5606259796dSeric ADDRESS *ctladdr; 561b31e7f2bSeric register MCI *mci; 562c77d1c25Seric register ADDRESS *to = firstto; 563c579ef51Seric bool clever = FALSE; /* running user smtp to this mailer */ 564772e6e50Seric ADDRESS *tochain = NULL; /* chain of users in this mailer call */ 565911693bfSbostic int rcode; /* response code */ 566e103b48fSeric char *firstsig; /* signature of firstto */ 5679c9e68d9Seric int pid; 5689c9e68d9Seric char *curhost; 5699c9e68d9Seric int mpvect[2]; 5709c9e68d9Seric int rpvect[2]; 571ee6bf8dfSeric char *pv[MAXPV+1]; 572579ef0ddSeric char tobuf[TOBUFSIZE]; /* text line of to people */ 573ee6bf8dfSeric char buf[MAXNAME]; 574c23ed322Seric char rpathbuf[MAXNAME]; /* translated return path */ 575fabb3bd4Seric extern int checkcompat(); 57625a99e2eSeric 57735490626Seric errno = 0; 578ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags)) 5795dfc646bSeric return (0); 58025a99e2eSeric 581134746fbSeric #ifdef NAMED_BIND 582912a731aSbostic /* unless interactive, try twice, over a minute */ 5838d19a23dSeric if (OpMode == MD_DAEMON || OpMode == MD_SMTP) 5848d19a23dSeric { 585912a731aSbostic _res.retrans = 30; 586912a731aSbostic _res.retry = 2; 587912a731aSbostic } 588d4bd8f0eSbostic #endif 589912a731aSbostic 59051552439Seric m = to->q_mailer; 59151552439Seric host = to->q_host; 592c9be6216Seric CurEnv = e; /* just in case */ 5934384d521Seric e->e_statmsg = NULL; 594df106f0bSeric SmtpError[0] = '\0'; 59551552439Seric 5966ef48975Seric if (tTd(10, 1)) 5975dfc646bSeric printf("\n--deliver, mailer=%d, host=`%s', first user=`%s'\n", 59851552439Seric m->m_mno, host, to->q_user); 599ab81ee53Seric if (tTd(10, 100)) 600ab81ee53Seric printopenfds(FALSE); 601f3dbc832Seric 602f3dbc832Seric /* 603f3dbc832Seric ** If this mailer is expensive, and if we don't want to make 604f3dbc832Seric ** connections now, just mark these addresses and return. 605f3dbc832Seric ** This is useful if we want to batch connections to 606f3dbc832Seric ** reduce load. This will cause the messages to be 607f3dbc832Seric ** queued up, and a daemon will come along to send the 608f3dbc832Seric ** messages later. 609f3dbc832Seric ** This should be on a per-mailer basis. 610f3dbc832Seric */ 611f3dbc832Seric 61279aa5155Seric if (NoConnect && bitnset(M_EXPENSIVE, m->m_flags) && !Verbose) 613f3dbc832Seric { 614f3dbc832Seric for (; to != NULL; to = to->q_next) 615f4560e80Seric { 616ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 617c6e18ac5Seric to->q_mailer != m) 618f4560e80Seric continue; 619268a25e1Seric to->q_flags |= QQUEUEUP; 620588cad61Seric e->e_to = to->q_paddr; 62108b25121Seric message("queued"); 6222f624c86Seric if (LogLevel > 8) 6234dee0003Seric logdelivery(m, NULL, "queued", NULL, e); 624f4560e80Seric } 625588cad61Seric e->e_to = NULL; 626f3dbc832Seric return (0); 627f3dbc832Seric } 628f3dbc832Seric 62925a99e2eSeric /* 6305dfc646bSeric ** Do initial argv setup. 6315dfc646bSeric ** Insert the mailer name. Notice that $x expansion is 6325dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 6335dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 6345dfc646bSeric ** code does not check for 'pv' overflow; this places a 6355dfc646bSeric ** manifest lower limit of 4 for MAXPV. 6363bea8136Seric ** The from address rewrite is expected to make 6373bea8136Seric ** the address relative to the other end. 6385dfc646bSeric */ 6395dfc646bSeric 64078442df3Seric /* rewrite from address, using rewriting rules */ 641efe54562Seric rcode = EX_OK; 642efe54562Seric (void) strcpy(rpathbuf, remotename(e->e_from.q_paddr, m, 643efe54562Seric RF_SENDERADDR|RF_CANONICAL, 644efe54562Seric &rcode, e)); 645ee4b0922Seric define('g', rpathbuf, e); /* translated return path */ 646588cad61Seric define('h', host, e); /* to host */ 6475dfc646bSeric Errors = 0; 6485dfc646bSeric pvp = pv; 6495dfc646bSeric *pvp++ = m->m_argv[0]; 6505dfc646bSeric 6515dfc646bSeric /* insert -f or -r flag as appropriate */ 65257fc6f17Seric if (FromFlag && (bitnset(M_FOPT, m->m_flags) || bitnset(M_ROPT, m->m_flags))) 6535dfc646bSeric { 65457fc6f17Seric if (bitnset(M_FOPT, m->m_flags)) 6555dfc646bSeric *pvp++ = "-f"; 6565dfc646bSeric else 6575dfc646bSeric *pvp++ = "-r"; 658c23ed322Seric *pvp++ = newstr(rpathbuf); 6595dfc646bSeric } 6605dfc646bSeric 6615dfc646bSeric /* 6625dfc646bSeric ** Append the other fixed parts of the argv. These run 6635dfc646bSeric ** up to the first entry containing "$u". There can only 6645dfc646bSeric ** be one of these, and there are only a few more slots 6655dfc646bSeric ** in the pv after it. 6665dfc646bSeric */ 6675dfc646bSeric 6685dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 6695dfc646bSeric { 6702bc47524Seric /* can't use strchr here because of sign extension problems */ 6712bc47524Seric while (*p != '\0') 6722bc47524Seric { 6732bc47524Seric if ((*p++ & 0377) == MACROEXPAND) 6742bc47524Seric { 6752bc47524Seric if (*p == 'u') 6765dfc646bSeric break; 6772bc47524Seric } 6782bc47524Seric } 6792bc47524Seric 6802bc47524Seric if (*p != '\0') 6815dfc646bSeric break; 6825dfc646bSeric 6835dfc646bSeric /* this entry is safe -- go ahead and process it */ 684588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 6855dfc646bSeric *pvp++ = newstr(buf); 6865dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 6875dfc646bSeric { 68808b25121Seric syserr("554 Too many parameters to %s before $u", pv[0]); 6895dfc646bSeric return (-1); 6905dfc646bSeric } 6915dfc646bSeric } 692c579ef51Seric 69333db8731Seric /* 69433db8731Seric ** If we have no substitution for the user name in the argument 69533db8731Seric ** list, we know that we must supply the names otherwise -- and 69633db8731Seric ** SMTP is the answer!! 69733db8731Seric */ 69833db8731Seric 6995dfc646bSeric if (*mvp == NULL) 700c579ef51Seric { 701c579ef51Seric /* running SMTP */ 7022c7e1b8dSeric # ifdef SMTP 703c579ef51Seric clever = TRUE; 704c579ef51Seric *pvp = NULL; 7056c2c3107Seric # else /* SMTP */ 70633db8731Seric /* oops! we don't implement SMTP */ 707df106f0bSeric syserr("554 SMTP style mailer not implemented"); 7082c7e1b8dSeric return (EX_SOFTWARE); 7096c2c3107Seric # endif /* SMTP */ 710c579ef51Seric } 7115dfc646bSeric 7125dfc646bSeric /* 7135dfc646bSeric ** At this point *mvp points to the argument with $u. We 7145dfc646bSeric ** run through our address list and append all the addresses 7155dfc646bSeric ** we can. If we run out of space, do not fret! We can 7165dfc646bSeric ** always send another copy later. 7175dfc646bSeric */ 7185dfc646bSeric 7195dfc646bSeric tobuf[0] = '\0'; 720588cad61Seric e->e_to = tobuf; 7216259796dSeric ctladdr = NULL; 722e103b48fSeric firstsig = hostsignature(firstto->q_mailer, firstto->q_host, e); 7235dfc646bSeric for (; to != NULL; to = to->q_next) 7245dfc646bSeric { 7255dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 72657fc6f17Seric if (tobuf[0] != '\0' && !bitnset(M_MUSER, m->m_flags)) 7275dfc646bSeric break; 7285dfc646bSeric 7295dfc646bSeric /* if already sent or not for this host, don't send */ 730ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 731e103b48fSeric to->q_mailer != firstto->q_mailer || 732e103b48fSeric strcmp(hostsignature(to->q_mailer, to->q_host, e), firstsig) != 0) 7335dfc646bSeric continue; 7346259796dSeric 7354b22ea87Seric /* avoid overflowing tobuf */ 736aa50a568Sbostic if (sizeof tobuf < (strlen(to->q_paddr) + strlen(tobuf) + 2)) 7374b22ea87Seric break; 7384b22ea87Seric 7396ef48975Seric if (tTd(10, 1)) 740772e6e50Seric { 741772e6e50Seric printf("\nsend to "); 742772e6e50Seric printaddr(to, FALSE); 743772e6e50Seric } 744772e6e50Seric 7456259796dSeric /* compute effective uid/gid when sending */ 746960e665aSeric /* XXX perhaps this should be to->q_mailer != LocalMailer ?? */ 747960e665aSeric /* XXX perhaps it should be a mailer flag? */ 748960e665aSeric if (to->q_mailer == ProgMailer || to->q_mailer == FileMailer) 7496259796dSeric ctladdr = getctladdr(to); 7506259796dSeric 7515dfc646bSeric user = to->q_user; 752588cad61Seric e->e_to = to->q_paddr; 75375f1ade9Seric if (tTd(10, 5)) 75475f1ade9Seric { 75575f1ade9Seric printf("deliver: QDONTSEND "); 75675f1ade9Seric printaddr(to, FALSE); 75775f1ade9Seric } 758ee4b0922Seric to->q_flags |= QDONTSEND; 7595dfc646bSeric 7605dfc646bSeric /* 7615dfc646bSeric ** Check to see that these people are allowed to 7625dfc646bSeric ** talk to each other. 7632a6e0786Seric */ 7642a6e0786Seric 76569582d2fSeric if (m->m_maxsize != 0 && e->e_msgsize > m->m_maxsize) 76669582d2fSeric { 76769582d2fSeric NoReturn = TRUE; 76808b25121Seric usrerr("552 Message is too large; %ld bytes max", m->m_maxsize); 7694dee0003Seric giveresponse(EX_UNAVAILABLE, m, NULL, ctladdr, e); 77069582d2fSeric continue; 77169582d2fSeric } 772fabb3bd4Seric rcode = checkcompat(to, e); 7731793c9c5Seric if (rcode != EX_OK) 7745dfc646bSeric { 7751000c37aSeric markfailure(e, to, rcode); 7764dee0003Seric giveresponse(rcode, m, NULL, ctladdr, e); 7775dfc646bSeric continue; 7785dfc646bSeric } 7792a6e0786Seric 7802a6e0786Seric /* 7819ec9501bSeric ** Strip quote bits from names if the mailer is dumb 7829ec9501bSeric ** about them. 78325a99e2eSeric */ 78425a99e2eSeric 78557fc6f17Seric if (bitnset(M_STRIPQ, m->m_flags)) 78625a99e2eSeric { 7871d8f1806Seric stripquotes(user); 7881d8f1806Seric stripquotes(host); 78925a99e2eSeric } 79025a99e2eSeric 791cdb828c5Seric /* hack attack -- delivermail compatibility */ 792cdb828c5Seric if (m == ProgMailer && *user == '|') 793cdb828c5Seric user++; 794cdb828c5Seric 79525a99e2eSeric /* 7963efaed6eSeric ** If an error message has already been given, don't 7973efaed6eSeric ** bother to send to this address. 7983efaed6eSeric ** 7993efaed6eSeric ** >>>>>>>>>> This clause assumes that the local mailer 8003efaed6eSeric ** >> NOTE >> cannot do any further aliasing; that 8013efaed6eSeric ** >>>>>>>>>> function is subsumed by sendmail. 8023efaed6eSeric */ 8033efaed6eSeric 8046cae517dSeric if (bitset(QBADADDR|QQUEUEUP, to->q_flags)) 8053efaed6eSeric continue; 8063efaed6eSeric 807f2fec898Seric /* save statistics.... */ 808588cad61Seric markstats(e, to); 809f2fec898Seric 8103efaed6eSeric /* 81125a99e2eSeric ** See if this user name is "special". 81225a99e2eSeric ** If the user name has a slash in it, assume that this 81351552439Seric ** is a file -- send it off without further ado. Note 81451552439Seric ** that this type of addresses is not processed along 81551552439Seric ** with the others, so we fudge on the To person. 81625a99e2eSeric */ 81725a99e2eSeric 8182c017f8dSeric if (m == FileMailer) 81925a99e2eSeric { 82003463a75Seric rcode = mailfile(user, ctladdr, e); 82103463a75Seric giveresponse(rcode, m, NULL, ctladdr, e); 822dde5acadSeric if (rcode == EX_OK) 823dde5acadSeric to->q_flags |= QSENT; 8245dfc646bSeric continue; 82525a99e2eSeric } 82625a99e2eSeric 82713bbc08cSeric /* 82813bbc08cSeric ** Address is verified -- add this user to mailer 82913bbc08cSeric ** argv, and add it to the print list of recipients. 83013bbc08cSeric */ 83113bbc08cSeric 832508daeccSeric /* link together the chain of recipients */ 833508daeccSeric to->q_tchain = tochain; 834508daeccSeric tochain = to; 835508daeccSeric 8365dfc646bSeric /* create list of users for error messages */ 837db8841e9Seric (void) strcat(tobuf, ","); 838db8841e9Seric (void) strcat(tobuf, to->q_paddr); 839588cad61Seric define('u', user, e); /* to user */ 840b6f89e6eSeric p = to->q_home; 841b6f89e6eSeric if (p == NULL && ctladdr != NULL) 842b6f89e6eSeric p = ctladdr->q_home; 843b6f89e6eSeric define('z', p, e); /* user's home */ 8445dfc646bSeric 845c579ef51Seric /* 846508daeccSeric ** Expand out this user into argument list. 847c579ef51Seric */ 848c579ef51Seric 849508daeccSeric if (!clever) 850c579ef51Seric { 851588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8525dfc646bSeric *pvp++ = newstr(buf); 8535dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 8545dfc646bSeric { 8555dfc646bSeric /* allow some space for trailing parms */ 8565dfc646bSeric break; 8575dfc646bSeric } 8585dfc646bSeric } 859c579ef51Seric } 8605dfc646bSeric 861145b49b1Seric /* see if any addresses still exist */ 862145b49b1Seric if (tobuf[0] == '\0') 863c579ef51Seric { 864588cad61Seric define('g', (char *) NULL, e); 865145b49b1Seric return (0); 866c579ef51Seric } 867145b49b1Seric 8685dfc646bSeric /* print out messages as full list */ 86963780dbdSeric e->e_to = tobuf + 1; 8705dfc646bSeric 8715dfc646bSeric /* 8725dfc646bSeric ** Fill out any parameters after the $u parameter. 8735dfc646bSeric */ 8745dfc646bSeric 875c579ef51Seric while (!clever && *++mvp != NULL) 8765dfc646bSeric { 877588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8785dfc646bSeric *pvp++ = newstr(buf); 8795dfc646bSeric if (pvp >= &pv[MAXPV]) 88008b25121Seric syserr("554 deliver: pv overflow after $u for %s", pv[0]); 8815dfc646bSeric } 8825dfc646bSeric *pvp++ = NULL; 8835dfc646bSeric 88425a99e2eSeric /* 88525a99e2eSeric ** Call the mailer. 8866328bdf7Seric ** The argument vector gets built, pipes 88725a99e2eSeric ** are created as necessary, and we fork & exec as 8886328bdf7Seric ** appropriate. 889c579ef51Seric ** If we are running SMTP, we just need to clean up. 89025a99e2eSeric */ 89125a99e2eSeric 892960e665aSeric /*XXX this seems a bit wierd */ 8934899f6b5Seric if (ctladdr == NULL && m != ProgMailer && 8944899f6b5Seric bitset(QGOODUID, e->e_from.q_flags)) 895960e665aSeric ctladdr = &e->e_from; 896960e665aSeric 897134746fbSeric #ifdef NAMED_BIND 8982bcc6d2dSeric if (ConfigLevel < 2) 899912a731aSbostic _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 900134746fbSeric #endif 9019c9e68d9Seric 9029c9e68d9Seric if (tTd(11, 1)) 903134746fbSeric { 9049c9e68d9Seric printf("openmailer:"); 9059c9e68d9Seric printav(pv); 9069c9e68d9Seric } 9079c9e68d9Seric errno = 0; 9089c9e68d9Seric 9099c9e68d9Seric CurHostName = m->m_mailer; 9109c9e68d9Seric 9119c9e68d9Seric /* 9129c9e68d9Seric ** Deal with the special case of mail handled through an IPC 9139c9e68d9Seric ** connection. 9149c9e68d9Seric ** In this case we don't actually fork. We must be 9159c9e68d9Seric ** running SMTP for this to work. We will return a 9169c9e68d9Seric ** zero pid to indicate that we are running IPC. 9179c9e68d9Seric ** We also handle a debug version that just talks to stdin/out. 9189c9e68d9Seric */ 9199c9e68d9Seric 9209c9e68d9Seric curhost = NULL; 921c931b82bSeric SmtpPhase = NULL; 922df106f0bSeric mci = NULL; 9239c9e68d9Seric 9247febfd66Seric #ifdef XDEBUG 9257febfd66Seric { 9267febfd66Seric char wbuf[MAXLINE]; 9277febfd66Seric 9287febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 9297febfd66Seric sprintf(wbuf, "%s... openmailer(%s)", e->e_to, m->m_name); 9307febfd66Seric checkfd012(wbuf); 9317febfd66Seric } 9327febfd66Seric #endif 9337febfd66Seric 9349c9e68d9Seric /* check for Local Person Communication -- not for mortals!!! */ 9359c9e68d9Seric if (strcmp(m->m_mailer, "[LPC]") == 0) 9369c9e68d9Seric { 9379c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 9389c9e68d9Seric bzero((char *) mci, sizeof *mci); 9399c9e68d9Seric mci->mci_in = stdin; 9409c9e68d9Seric mci->mci_out = stdout; 9419c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 9429c9e68d9Seric mci->mci_mailer = m; 9439c9e68d9Seric } 9449c9e68d9Seric else if (strcmp(m->m_mailer, "[IPC]") == 0 || 9459c9e68d9Seric strcmp(m->m_mailer, "[TCP]") == 0) 9469c9e68d9Seric { 9479c9e68d9Seric #ifdef DAEMON 9489c9e68d9Seric register int i; 9499c9e68d9Seric register u_short port; 9509c9e68d9Seric 951a5d44642Seric if (pv[0] == NULL || pv[1] == NULL || pv[1][0] == '\0') 952a5d44642Seric { 953a5d44642Seric syserr("null host name for %s mailer", m->m_mailer); 954a5d44642Seric rcode = EX_CONFIG; 955a5d44642Seric goto give_up; 956a5d44642Seric } 957a5d44642Seric 9589c9e68d9Seric CurHostName = pv[1]; 9599c9e68d9Seric curhost = hostsignature(m, pv[1], e); 9609c9e68d9Seric 9619c9e68d9Seric if (curhost == NULL || curhost[0] == '\0') 9629c9e68d9Seric { 963a5d44642Seric syserr("null host signature for %s", pv[1]); 964845e533cSeric rcode = EX_OSERR; 965b31e7f2bSeric goto give_up; 966b31e7f2bSeric } 9679c9e68d9Seric 9689c9e68d9Seric if (!clever) 9699c9e68d9Seric { 9709c9e68d9Seric syserr("554 non-clever IPC"); 971df106f0bSeric rcode = EX_CONFIG; 9729c9e68d9Seric goto give_up; 9739c9e68d9Seric } 9749c9e68d9Seric if (pv[2] != NULL) 9759c9e68d9Seric port = atoi(pv[2]); 9769c9e68d9Seric else 9779c9e68d9Seric port = 0; 9789c9e68d9Seric tryhost: 9799c9e68d9Seric while (*curhost != '\0') 9809c9e68d9Seric { 9819c9e68d9Seric register char *p; 9829c9e68d9Seric static char hostbuf[MAXNAME]; 9839c9e68d9Seric 9849c9e68d9Seric /* pull the next host from the signature */ 9859c9e68d9Seric p = strchr(curhost, ':'); 9869c9e68d9Seric if (p == NULL) 9879c9e68d9Seric p = &curhost[strlen(curhost)]; 988df106f0bSeric if (p == curhost) 989df106f0bSeric { 990df106f0bSeric syserr("deliver: null host name in signature"); 9918087428aSeric curhost++; 992df106f0bSeric continue; 993df106f0bSeric } 9949c9e68d9Seric strncpy(hostbuf, curhost, p - curhost); 9959c9e68d9Seric hostbuf[p - curhost] = '\0'; 9969c9e68d9Seric if (*p != '\0') 9979c9e68d9Seric p++; 9989c9e68d9Seric curhost = p; 9999c9e68d9Seric 10009c9e68d9Seric /* see if we already know that this host is fried */ 10019c9e68d9Seric CurHostName = hostbuf; 10029c9e68d9Seric mci = mci_get(hostbuf, m); 10039c9e68d9Seric if (mci->mci_state != MCIS_CLOSED) 10049c9e68d9Seric { 10059c9e68d9Seric if (tTd(11, 1)) 10069c9e68d9Seric { 10079c9e68d9Seric printf("openmailer: "); 10084052916eSeric mci_dump(mci, FALSE); 10099c9e68d9Seric } 10109c9e68d9Seric CurHostName = mci->mci_host; 10119c9e68d9Seric break; 10129c9e68d9Seric } 10139c9e68d9Seric mci->mci_mailer = m; 10149c9e68d9Seric if (mci->mci_exitstat != EX_OK) 10159c9e68d9Seric continue; 10169c9e68d9Seric 10179c9e68d9Seric /* try the connection */ 10189c9e68d9Seric setproctitle("%s %s: %s", e->e_id, hostbuf, "user open"); 10199c9e68d9Seric message("Connecting to %s (%s)...", 10209c9e68d9Seric hostbuf, m->m_name); 10219c9e68d9Seric i = makeconnection(hostbuf, port, mci, 10229c9e68d9Seric bitnset(M_SECURE_PORT, m->m_flags)); 10239c9e68d9Seric mci->mci_exitstat = i; 10249c9e68d9Seric mci->mci_errno = errno; 1025f170942cSeric #ifdef NAMED_BIND 1026f170942cSeric mci->mci_herrno = h_errno; 1027f170942cSeric #endif 10289c9e68d9Seric if (i == EX_OK) 10299c9e68d9Seric { 10309c9e68d9Seric mci->mci_state = MCIS_OPENING; 10319c9e68d9Seric mci_cache(mci); 1032f170942cSeric if (TrafficLogFile != NULL) 1033f170942cSeric fprintf(TrafficLogFile, "%05d == CONNECT %s\n", 1034f170942cSeric getpid(), hostbuf); 10359c9e68d9Seric break; 10369c9e68d9Seric } 10379c9e68d9Seric else if (tTd(11, 1)) 10389c9e68d9Seric printf("openmailer: makeconnection => stat=%d, errno=%d\n", 10399c9e68d9Seric i, errno); 10409c9e68d9Seric 10419c9e68d9Seric /* enter status of this host */ 10429c9e68d9Seric setstat(i); 1043df106f0bSeric 1044df106f0bSeric /* should print some message here for -v mode */ 1045df106f0bSeric } 1046df106f0bSeric if (mci == NULL) 1047df106f0bSeric { 1048df106f0bSeric syserr("deliver: no host name"); 1049df106f0bSeric rcode = EX_OSERR; 1050df106f0bSeric goto give_up; 10519c9e68d9Seric } 10529c9e68d9Seric mci->mci_pid = 0; 10539c9e68d9Seric #else /* no DAEMON */ 10549c9e68d9Seric syserr("554 openmailer: no IPC"); 10559c9e68d9Seric if (tTd(11, 1)) 10569c9e68d9Seric printf("openmailer: NULL\n"); 1057df106f0bSeric rcode = EX_UNAVAILABLE; 1058df106f0bSeric goto give_up; 10599c9e68d9Seric #endif /* DAEMON */ 10609c9e68d9Seric } 10619c9e68d9Seric else 10629c9e68d9Seric { 1063f170942cSeric if (TrafficLogFile != NULL) 10640e3bfef5Seric { 1065f170942cSeric char **av; 1066f170942cSeric 1067f170942cSeric fprintf(TrafficLogFile, "%05d === EXEC", getpid()); 1068f170942cSeric for (av = pv; *av != NULL; av++) 1069f170942cSeric fprintf(TrafficLogFile, " %s", *av); 1070f170942cSeric fprintf(TrafficLogFile, "\n"); 10716fe8c3bcSeric } 10726fe8c3bcSeric 10739c9e68d9Seric /* create a pipe to shove the mail through */ 10749c9e68d9Seric if (pipe(mpvect) < 0) 10759c9e68d9Seric { 10760e3bfef5Seric syserr("%s... openmailer(%s): pipe (to mailer)", 10770e3bfef5Seric e->e_to, m->m_name); 10789c9e68d9Seric if (tTd(11, 1)) 10799c9e68d9Seric printf("openmailer: NULL\n"); 10809c9e68d9Seric rcode = EX_OSERR; 10819c9e68d9Seric goto give_up; 10829c9e68d9Seric } 10839c9e68d9Seric 10849c9e68d9Seric /* if this mailer speaks smtp, create a return pipe */ 10859c9e68d9Seric if (clever && pipe(rpvect) < 0) 10869c9e68d9Seric { 10870e3bfef5Seric syserr("%s... openmailer(%s): pipe (from mailer)", 10880e3bfef5Seric e->e_to, m->m_name); 10899c9e68d9Seric (void) close(mpvect[0]); 10909c9e68d9Seric (void) close(mpvect[1]); 10919c9e68d9Seric if (tTd(11, 1)) 10929c9e68d9Seric printf("openmailer: NULL\n"); 10939c9e68d9Seric rcode = EX_OSERR; 10949c9e68d9Seric goto give_up; 10959c9e68d9Seric } 10969c9e68d9Seric 10979c9e68d9Seric /* 10989c9e68d9Seric ** Actually fork the mailer process. 10999c9e68d9Seric ** DOFORK is clever about retrying. 11009c9e68d9Seric ** 11019c9e68d9Seric ** Dispose of SIGCHLD signal catchers that may be laying 11029c9e68d9Seric ** around so that endmail will get it. 11039c9e68d9Seric */ 11049c9e68d9Seric 11059c9e68d9Seric if (e->e_xfp != NULL) 11069c9e68d9Seric (void) fflush(e->e_xfp); /* for debugging */ 11079c9e68d9Seric (void) fflush(stdout); 11089c9e68d9Seric # ifdef SIGCHLD 11092b9178d3Seric (void) setsignal(SIGCHLD, SIG_DFL); 11109c9e68d9Seric # endif /* SIGCHLD */ 11119c9e68d9Seric DOFORK(FORK); 11129c9e68d9Seric /* pid is set by DOFORK */ 11139c9e68d9Seric if (pid < 0) 11149c9e68d9Seric { 11159c9e68d9Seric /* failure */ 11160e3bfef5Seric syserr("%s... openmailer(%s): cannot fork", 11170e3bfef5Seric e->e_to, m->m_name); 11189c9e68d9Seric (void) close(mpvect[0]); 11199c9e68d9Seric (void) close(mpvect[1]); 11209c9e68d9Seric if (clever) 11219c9e68d9Seric { 11229c9e68d9Seric (void) close(rpvect[0]); 11239c9e68d9Seric (void) close(rpvect[1]); 11249c9e68d9Seric } 11259c9e68d9Seric if (tTd(11, 1)) 11269c9e68d9Seric printf("openmailer: NULL\n"); 11279c9e68d9Seric rcode = EX_OSERR; 11289c9e68d9Seric goto give_up; 11299c9e68d9Seric } 11309c9e68d9Seric else if (pid == 0) 11319c9e68d9Seric { 11329c9e68d9Seric int i; 11339c9e68d9Seric int saveerrno; 11349c9e68d9Seric char **ep; 11359c9e68d9Seric char *env[MAXUSERENVIRON]; 11369c9e68d9Seric extern char **environ; 11379c9e68d9Seric extern int DtableSize; 11389c9e68d9Seric 11399c9e68d9Seric /* child -- set up input & exec mailer */ 11402b9178d3Seric (void) setsignal(SIGINT, SIG_IGN); 11412b9178d3Seric (void) setsignal(SIGHUP, SIG_IGN); 11422b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 11439c9e68d9Seric 114444f2317fSeric /* reset user and group */ 114544f2317fSeric if (!bitnset(M_RESTR, m->m_flags)) 114644f2317fSeric { 114744f2317fSeric if (ctladdr == NULL || ctladdr->q_uid == 0) 114844f2317fSeric { 114944f2317fSeric (void) initgroups(DefUser, DefGid); 1150fc354902Seric (void) setgid(DefGid); 115144f2317fSeric (void) setuid(DefUid); 115244f2317fSeric } 115344f2317fSeric else 115444f2317fSeric { 115544f2317fSeric (void) initgroups(ctladdr->q_ruser? 115644f2317fSeric ctladdr->q_ruser: ctladdr->q_user, 115744f2317fSeric ctladdr->q_gid); 115851cfe111Seric (void) setgid(ctladdr->q_gid); 115944f2317fSeric (void) setuid(ctladdr->q_uid); 116044f2317fSeric } 116144f2317fSeric } 116244f2317fSeric 116344f2317fSeric if (tTd(11, 2)) 116444f2317fSeric printf("openmailer: running as r/euid=%d/%d\n", 116544f2317fSeric getuid(), geteuid()); 116644f2317fSeric 1167b986f6aaSeric /* move into some "safe" directory */ 1168b986f6aaSeric if (m->m_execdir != NULL) 1169b986f6aaSeric { 1170b986f6aaSeric char *p, *q; 1171b986f6aaSeric char buf[MAXLINE]; 1172b986f6aaSeric 1173b986f6aaSeric for (p = m->m_execdir; p != NULL; p = q) 1174b986f6aaSeric { 1175b986f6aaSeric q = strchr(p, ':'); 1176b986f6aaSeric if (q != NULL) 1177b986f6aaSeric *q = '\0'; 1178b986f6aaSeric expand(p, buf, &buf[sizeof buf] - 1, e); 1179b986f6aaSeric if (q != NULL) 1180b986f6aaSeric *q++ = ':'; 1181b986f6aaSeric if (tTd(11, 20)) 1182b986f6aaSeric printf("openmailer: trydir %s\n", 1183b986f6aaSeric buf); 1184b986f6aaSeric if (buf[0] != '\0' && chdir(buf) >= 0) 1185b986f6aaSeric break; 1186b986f6aaSeric } 1187b986f6aaSeric } 1188b986f6aaSeric 11899c9e68d9Seric /* arrange to filter std & diag output of command */ 11909c9e68d9Seric if (clever) 11919c9e68d9Seric { 11929c9e68d9Seric (void) close(rpvect[0]); 11936fe8c3bcSeric if (dup2(rpvect[1], STDOUT_FILENO) < 0) 11946fe8c3bcSeric { 11950e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdout", 11960e3bfef5Seric e->e_to, m->m_name, rpvect[1]); 11976fe8c3bcSeric _exit(EX_OSERR); 11986fe8c3bcSeric } 11999c9e68d9Seric (void) close(rpvect[1]); 12009c9e68d9Seric } 12018d19a23dSeric else if (OpMode == MD_SMTP || OpMode == MD_DAEMON || HoldErrs) 12029c9e68d9Seric { 12039c9e68d9Seric /* put mailer output in transcript */ 12046fe8c3bcSeric if (dup2(fileno(e->e_xfp), STDOUT_FILENO) < 0) 12056fe8c3bcSeric { 12060e3bfef5Seric syserr("%s... openmailer(%s): cannot dup xscript %d for stdout", 12070e3bfef5Seric e->e_to, m->m_name, 12086fe8c3bcSeric fileno(e->e_xfp)); 12096fe8c3bcSeric _exit(EX_OSERR); 12109c9e68d9Seric } 12116fe8c3bcSeric } 12126fe8c3bcSeric if (dup2(STDOUT_FILENO, STDERR_FILENO) < 0) 12136fe8c3bcSeric { 12140e3bfef5Seric syserr("%s... openmailer(%s): cannot dup stdout for stderr", 12150e3bfef5Seric e->e_to, m->m_name); 12166fe8c3bcSeric _exit(EX_OSERR); 12176fe8c3bcSeric } 12189c9e68d9Seric 12199c9e68d9Seric /* arrange to get standard input */ 12209c9e68d9Seric (void) close(mpvect[1]); 12219c9e68d9Seric if (dup2(mpvect[0], STDIN_FILENO) < 0) 12229c9e68d9Seric { 12230e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdin", 12240e3bfef5Seric e->e_to, m->m_name, mpvect[0]); 12259c9e68d9Seric _exit(EX_OSERR); 12269c9e68d9Seric } 12279c9e68d9Seric (void) close(mpvect[0]); 12289c9e68d9Seric 12299c9e68d9Seric /* arrange for all the files to be closed */ 12309c9e68d9Seric for (i = 3; i < DtableSize; i++) 12319c9e68d9Seric { 12329c9e68d9Seric register int j; 123344f2317fSeric 12349c9e68d9Seric if ((j = fcntl(i, F_GETFD, 0)) != -1) 12359c9e68d9Seric (void) fcntl(i, F_SETFD, j | 1); 12369c9e68d9Seric } 12379c9e68d9Seric 12389c9e68d9Seric /* set up the mailer environment */ 12399c9e68d9Seric i = 0; 12409c9e68d9Seric env[i++] = "AGENT=sendmail"; 12419c9e68d9Seric for (ep = environ; *ep != NULL; ep++) 12429c9e68d9Seric { 12439c9e68d9Seric if (strncmp(*ep, "TZ=", 3) == 0) 12449c9e68d9Seric env[i++] = *ep; 12459c9e68d9Seric } 12469c9e68d9Seric env[i++] = NULL; 12479c9e68d9Seric 12489c9e68d9Seric /* try to execute the mailer */ 12499c9e68d9Seric execve(m->m_mailer, pv, env); 12509c9e68d9Seric saveerrno = errno; 12519c9e68d9Seric syserr("Cannot exec %s", m->m_mailer); 12527c941fd2Seric if (m == LocalMailer || transienterror(saveerrno)) 12537c941fd2Seric _exit(EX_OSERR); 12549c9e68d9Seric _exit(EX_UNAVAILABLE); 12559c9e68d9Seric } 12569c9e68d9Seric 12579c9e68d9Seric /* 12589c9e68d9Seric ** Set up return value. 12599c9e68d9Seric */ 12609c9e68d9Seric 12619c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 12629c9e68d9Seric bzero((char *) mci, sizeof *mci); 12639c9e68d9Seric mci->mci_mailer = m; 12649c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 12659c9e68d9Seric mci->mci_pid = pid; 12669c9e68d9Seric (void) close(mpvect[0]); 12679c9e68d9Seric mci->mci_out = fdopen(mpvect[1], "w"); 1268335eae58Seric if (mci->mci_out == NULL) 1269335eae58Seric { 1270335eae58Seric syserr("deliver: cannot create mailer output channel, fd=%d", 1271335eae58Seric mpvect[1]); 1272335eae58Seric (void) close(mpvect[1]); 1273335eae58Seric if (clever) 1274335eae58Seric { 1275335eae58Seric (void) close(rpvect[0]); 1276335eae58Seric (void) close(rpvect[1]); 1277335eae58Seric } 1278335eae58Seric rcode = EX_OSERR; 1279335eae58Seric goto give_up; 1280335eae58Seric } 12819c9e68d9Seric if (clever) 12829c9e68d9Seric { 12839c9e68d9Seric (void) close(rpvect[1]); 12849c9e68d9Seric mci->mci_in = fdopen(rpvect[0], "r"); 1285335eae58Seric if (mci->mci_in == NULL) 1286335eae58Seric { 1287335eae58Seric syserr("deliver: cannot create mailer input channel, fd=%d", 1288335eae58Seric mpvect[1]); 1289335eae58Seric (void) close(rpvect[0]); 1290335eae58Seric fclose(mci->mci_out); 1291335eae58Seric mci->mci_out = NULL; 1292335eae58Seric rcode = EX_OSERR; 1293335eae58Seric goto give_up; 1294335eae58Seric } 12959c9e68d9Seric } 12969c9e68d9Seric else 12979c9e68d9Seric { 12989c9e68d9Seric mci->mci_flags |= MCIF_TEMP; 12999c9e68d9Seric mci->mci_in = NULL; 13009c9e68d9Seric } 13019c9e68d9Seric } 13029c9e68d9Seric 13039c9e68d9Seric /* 13049c9e68d9Seric ** If we are in SMTP opening state, send initial protocol. 13059c9e68d9Seric */ 13069c9e68d9Seric 13079c9e68d9Seric if (clever && mci->mci_state != MCIS_CLOSED) 13089c9e68d9Seric { 13099c9e68d9Seric smtpinit(m, mci, e); 13109c9e68d9Seric } 13119c9e68d9Seric if (tTd(11, 1)) 13129c9e68d9Seric { 13139c9e68d9Seric printf("openmailer: "); 13144052916eSeric mci_dump(mci, FALSE); 13159c9e68d9Seric } 13169c9e68d9Seric 13179c9e68d9Seric if (mci->mci_state != MCIS_OPEN) 1318b31e7f2bSeric { 1319b31e7f2bSeric /* couldn't open the mailer */ 1320b31e7f2bSeric rcode = mci->mci_exitstat; 13212a6bc25bSeric errno = mci->mci_errno; 1322f170942cSeric #ifdef NAMED_BIND 1323f170942cSeric h_errno = mci->mci_herrno; 1324f170942cSeric #endif 1325b31e7f2bSeric if (rcode == EX_OK) 1326b31e7f2bSeric { 1327b31e7f2bSeric /* shouldn't happen */ 132808b25121Seric syserr("554 deliver: rcode=%d, mci_state=%d, sig=%s", 13296b0f339dSeric rcode, mci->mci_state, firstsig); 1330b31e7f2bSeric rcode = EX_SOFTWARE; 1331b31e7f2bSeric } 1332cb082c5bSeric else if (rcode == EX_TEMPFAIL && curhost != NULL && *curhost != '\0') 133390891494Seric { 133490891494Seric /* try next MX site */ 133590891494Seric goto tryhost; 133690891494Seric } 1337b31e7f2bSeric } 1338b31e7f2bSeric else if (!clever) 1339b31e7f2bSeric { 1340b31e7f2bSeric /* 1341b31e7f2bSeric ** Format and send message. 1342b31e7f2bSeric */ 134315d084d5Seric 13445aa0f353Seric putfromline(mci, e); 13455aa0f353Seric (*e->e_puthdr)(mci, e); 13465aa0f353Seric putline("\n", mci); 13475aa0f353Seric (*e->e_putbody)(mci, e, NULL); 1348b31e7f2bSeric 1349b31e7f2bSeric /* get the exit status */ 1350c9be6216Seric rcode = endmailer(mci, e, pv); 1351134746fbSeric } 1352134746fbSeric else 1353b31e7f2bSeric #ifdef SMTP 1354134746fbSeric { 1355b31e7f2bSeric /* 1356b31e7f2bSeric ** Send the MAIL FROM: protocol 1357b31e7f2bSeric */ 135815d084d5Seric 1359b31e7f2bSeric rcode = smtpmailfrom(m, mci, e); 1360b31e7f2bSeric if (rcode == EX_OK) 136175889e88Seric { 1362ded0d3daSkarels register char *t = tobuf; 1363ded0d3daSkarels register int i; 1364ded0d3daSkarels 1365588cad61Seric /* send the recipient list */ 136663780dbdSeric tobuf[0] = '\0'; 136775889e88Seric for (to = tochain; to != NULL; to = to->q_tchain) 136875889e88Seric { 136963780dbdSeric e->e_to = to->q_paddr; 137015d084d5Seric if ((i = smtprcpt(to, m, mci, e)) != EX_OK) 137175889e88Seric { 137283b7ddc9Seric markfailure(e, to, i); 13734dee0003Seric giveresponse(i, m, mci, ctladdr, e); 137463780dbdSeric } 137575889e88Seric else 137675889e88Seric { 1377911693bfSbostic *t++ = ','; 1378b31e7f2bSeric for (p = to->q_paddr; *p; *t++ = *p++) 1379b31e7f2bSeric continue; 1380ee39df61Seric *t = '\0'; 1381588cad61Seric } 1382588cad61Seric } 1383588cad61Seric 138463780dbdSeric /* now send the data */ 138563780dbdSeric if (tobuf[0] == '\0') 1386b31e7f2bSeric { 13879c9e68d9Seric rcode = EX_OK; 138863780dbdSeric e->e_to = NULL; 1389b31e7f2bSeric if (bitset(MCIF_CACHED, mci->mci_flags)) 1390b31e7f2bSeric smtprset(m, mci, e); 1391b31e7f2bSeric } 139275889e88Seric else 139375889e88Seric { 139463780dbdSeric e->e_to = tobuf + 1; 139575889e88Seric rcode = smtpdata(m, mci, e); 139663780dbdSeric } 139763780dbdSeric 139863780dbdSeric /* now close the connection */ 1399b31e7f2bSeric if (!bitset(MCIF_CACHED, mci->mci_flags)) 140015d084d5Seric smtpquit(m, mci, e); 140163780dbdSeric } 1402cb082c5bSeric if (rcode != EX_OK && curhost != NULL && *curhost != '\0') 14039c9e68d9Seric { 14049c9e68d9Seric /* try next MX site */ 14059c9e68d9Seric goto tryhost; 14069c9e68d9Seric } 1407c579ef51Seric } 1408b31e7f2bSeric #else /* not SMTP */ 1409a05b3449Sbostic { 141008b25121Seric syserr("554 deliver: need SMTP compiled to use clever mailer"); 1411845e533cSeric rcode = EX_CONFIG; 1412b31e7f2bSeric goto give_up; 1413a05b3449Sbostic } 1414b31e7f2bSeric #endif /* SMTP */ 1415134746fbSeric #ifdef NAMED_BIND 14162bcc6d2dSeric if (ConfigLevel < 2) 1417912a731aSbostic _res.options |= RES_DEFNAMES | RES_DNSRCH; /* XXX */ 1418134746fbSeric #endif 14195dfc646bSeric 1420b31e7f2bSeric /* arrange a return receipt if requested */ 1421df106f0bSeric if (rcode == EX_OK && e->e_receiptto != NULL && 1422df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1423b31e7f2bSeric { 1424b31e7f2bSeric e->e_flags |= EF_SENDRECEIPT; 1425b31e7f2bSeric /* do we want to send back more info? */ 1426b31e7f2bSeric } 1427b31e7f2bSeric 1428c77d1c25Seric /* 142963780dbdSeric ** Do final status disposal. 143063780dbdSeric ** We check for something in tobuf for the SMTP case. 1431c77d1c25Seric ** If we got a temporary failure, arrange to queue the 1432c77d1c25Seric ** addressees. 1433c77d1c25Seric */ 1434c77d1c25Seric 1435b31e7f2bSeric give_up: 143663780dbdSeric if (tobuf[0] != '\0') 14374dee0003Seric giveresponse(rcode, m, mci, ctladdr, e); 1438772e6e50Seric for (to = tochain; to != NULL; to = to->q_tchain) 1439b31e7f2bSeric { 1440dde5acadSeric if (rcode != EX_OK) 144183b7ddc9Seric markfailure(e, to, rcode); 1442dde5acadSeric else 1443655518ecSeric { 1444dde5acadSeric to->q_flags |= QSENT; 1445655518ecSeric e->e_nsent++; 1446df106f0bSeric if (e->e_receiptto != NULL && 1447df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1448df106f0bSeric { 1449df106f0bSeric fprintf(e->e_xfp, "%s... Successfully delivered\n", 1450df106f0bSeric to->q_paddr); 1451df106f0bSeric } 1452655518ecSeric } 1453b31e7f2bSeric } 1454b31e7f2bSeric 1455b31e7f2bSeric /* 1456b31e7f2bSeric ** Restore state and return. 1457b31e7f2bSeric */ 1458c77d1c25Seric 14597febfd66Seric #ifdef XDEBUG 14607febfd66Seric { 14617febfd66Seric char wbuf[MAXLINE]; 14627febfd66Seric 14637febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 146444622ea3Seric sprintf(wbuf, "%s... end of deliver(%s)", 146544622ea3Seric e->e_to == NULL ? "NO-TO-LIST" : e->e_to, 146644622ea3Seric m->m_name); 14677febfd66Seric checkfd012(wbuf); 14687febfd66Seric } 14697febfd66Seric #endif 14707febfd66Seric 147135490626Seric errno = 0; 1472588cad61Seric define('g', (char *) NULL, e); 14735826d9d3Seric return (rcode); 147425a99e2eSeric } 14755dfc646bSeric /* 147683b7ddc9Seric ** MARKFAILURE -- mark a failure on a specific address. 147783b7ddc9Seric ** 147883b7ddc9Seric ** Parameters: 147983b7ddc9Seric ** e -- the envelope we are sending. 148083b7ddc9Seric ** q -- the address to mark. 148183b7ddc9Seric ** rcode -- the code signifying the particular failure. 148283b7ddc9Seric ** 148383b7ddc9Seric ** Returns: 148483b7ddc9Seric ** none. 148583b7ddc9Seric ** 148683b7ddc9Seric ** Side Effects: 148783b7ddc9Seric ** marks the address (and possibly the envelope) with the 148883b7ddc9Seric ** failure so that an error will be returned or 148983b7ddc9Seric ** the message will be queued, as appropriate. 149083b7ddc9Seric */ 149183b7ddc9Seric 149283b7ddc9Seric markfailure(e, q, rcode) 149383b7ddc9Seric register ENVELOPE *e; 149483b7ddc9Seric register ADDRESS *q; 149583b7ddc9Seric int rcode; 149683b7ddc9Seric { 149719c47125Seric char buf[MAXLINE]; 149819c47125Seric 1499d5aafa3cSeric switch (rcode) 1500d5aafa3cSeric { 1501d5aafa3cSeric case EX_OK: 1502d5aafa3cSeric break; 1503d5aafa3cSeric 1504d5aafa3cSeric case EX_TEMPFAIL: 1505d5aafa3cSeric case EX_IOERR: 1506d5aafa3cSeric case EX_OSERR: 150783b7ddc9Seric q->q_flags |= QQUEUEUP; 1508d5aafa3cSeric break; 1509d5aafa3cSeric 1510d5aafa3cSeric default: 1511f170942cSeric q->q_flags |= QBADADDR; 1512d5aafa3cSeric break; 1513d5aafa3cSeric } 151483b7ddc9Seric } 151583b7ddc9Seric /* 1516c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 1517c579ef51Seric ** 1518c579ef51Seric ** We should never get fatal errors (e.g., segmentation 1519c579ef51Seric ** violation), so we report those specially. For other 1520c579ef51Seric ** errors, we choose a status message (into statmsg), 1521c579ef51Seric ** and if it represents an error, we print it. 1522c579ef51Seric ** 1523c579ef51Seric ** Parameters: 1524c579ef51Seric ** pid -- pid of mailer. 1525c9be6216Seric ** e -- the current envelope. 1526c9be6216Seric ** pv -- the parameter vector that invoked the mailer 1527c9be6216Seric ** (for error messages). 1528c579ef51Seric ** 1529c579ef51Seric ** Returns: 1530c579ef51Seric ** exit code of mailer. 1531c579ef51Seric ** 1532c579ef51Seric ** Side Effects: 1533c579ef51Seric ** none. 1534c579ef51Seric */ 1535c579ef51Seric 1536c9be6216Seric endmailer(mci, e, pv) 1537b31e7f2bSeric register MCI *mci; 1538c9be6216Seric register ENVELOPE *e; 1539c9be6216Seric char **pv; 1540c579ef51Seric { 1541588cad61Seric int st; 1542c579ef51Seric 154375889e88Seric /* close any connections */ 154475889e88Seric if (mci->mci_in != NULL) 154576f3d53fSeric (void) xfclose(mci->mci_in, mci->mci_mailer->m_name, "mci_in"); 154675889e88Seric if (mci->mci_out != NULL) 154776f3d53fSeric (void) xfclose(mci->mci_out, mci->mci_mailer->m_name, "mci_out"); 154875889e88Seric mci->mci_in = mci->mci_out = NULL; 154975889e88Seric mci->mci_state = MCIS_CLOSED; 155075889e88Seric 155133db8731Seric /* in the IPC case there is nothing to wait for */ 155275889e88Seric if (mci->mci_pid == 0) 155333db8731Seric return (EX_OK); 155433db8731Seric 155533db8731Seric /* wait for the mailer process to die and collect status */ 155675889e88Seric st = waitfor(mci->mci_pid); 1557588cad61Seric if (st == -1) 155878de67c1Seric { 1559c9be6216Seric syserr("endmailer %s: wait", pv[0]); 1560588cad61Seric return (EX_SOFTWARE); 1561c579ef51Seric } 156233db8731Seric 1563bf9bc890Seric if (WIFEXITED(st)) 1564c579ef51Seric { 1565bf9bc890Seric /* normal death -- return status */ 1566bf9bc890Seric return (WEXITSTATUS(st)); 1567bf9bc890Seric } 1568bf9bc890Seric 1569bf9bc890Seric /* it died a horrid death */ 1570550092c3Seric syserr("451 mailer %s died with signal %o", 1571550092c3Seric mci->mci_mailer->m_name, st); 1572c9be6216Seric 1573c9be6216Seric /* log the arguments */ 15743c930db3Seric if (pv != NULL && e->e_xfp != NULL) 1575c9be6216Seric { 1576c9be6216Seric register char **av; 1577c9be6216Seric 1578c9be6216Seric fprintf(e->e_xfp, "Arguments:"); 1579c9be6216Seric for (av = pv; *av != NULL; av++) 1580c9be6216Seric fprintf(e->e_xfp, " %s", *av); 1581c9be6216Seric fprintf(e->e_xfp, "\n"); 1582c9be6216Seric } 1583c9be6216Seric 15845f73204aSeric ExitStat = EX_TEMPFAIL; 15855f73204aSeric return (EX_TEMPFAIL); 1586c579ef51Seric } 1587c579ef51Seric /* 158825a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 158925a99e2eSeric ** 159025a99e2eSeric ** Parameters: 159125a99e2eSeric ** stat -- the status code from the mailer (high byte 159225a99e2eSeric ** only; core dumps must have been taken care of 159325a99e2eSeric ** already). 159481161401Seric ** m -- the mailer info for this mailer. 159581161401Seric ** mci -- the mailer connection info -- can be NULL if the 159681161401Seric ** response is given before the connection is made. 15974dee0003Seric ** ctladdr -- the controlling address for the recipient 15984dee0003Seric ** address(es). 159981161401Seric ** e -- the current envelope. 160025a99e2eSeric ** 160125a99e2eSeric ** Returns: 1602db8841e9Seric ** none. 160325a99e2eSeric ** 160425a99e2eSeric ** Side Effects: 1605c1f9df2cSeric ** Errors may be incremented. 160625a99e2eSeric ** ExitStat may be set. 160725a99e2eSeric */ 160825a99e2eSeric 16094dee0003Seric giveresponse(stat, m, mci, ctladdr, e) 161025a99e2eSeric int stat; 1611588cad61Seric register MAILER *m; 161281161401Seric register MCI *mci; 16134dee0003Seric ADDRESS *ctladdr; 1614198d9be0Seric ENVELOPE *e; 161525a99e2eSeric { 16169c16475dSeric register const char *statmsg; 161725a99e2eSeric extern char *SysExMsg[]; 161825a99e2eSeric register int i; 1619d4bd8f0eSbostic extern int N_SysEx; 1620198d9be0Seric char buf[MAXLINE]; 162125a99e2eSeric 162213bbc08cSeric /* 162313bbc08cSeric ** Compute status message from code. 162413bbc08cSeric */ 162513bbc08cSeric 162625a99e2eSeric i = stat - EX__BASE; 1627588cad61Seric if (stat == 0) 16286fe8c3bcSeric { 1629588cad61Seric statmsg = "250 Sent"; 1630ce5531bdSeric if (e->e_statmsg != NULL) 16316fe8c3bcSeric { 1632ce5531bdSeric (void) sprintf(buf, "%s (%s)", statmsg, e->e_statmsg); 16336fe8c3bcSeric statmsg = buf; 16346fe8c3bcSeric } 16356fe8c3bcSeric } 1636588cad61Seric else if (i < 0 || i > N_SysEx) 1637588cad61Seric { 1638588cad61Seric (void) sprintf(buf, "554 unknown mailer error %d", stat); 1639588cad61Seric stat = EX_UNAVAILABLE; 1640588cad61Seric statmsg = buf; 1641588cad61Seric } 1642198d9be0Seric else if (stat == EX_TEMPFAIL) 1643198d9be0Seric { 16447d55540cSeric (void) strcpy(buf, SysExMsg[i] + 1); 1645d4bd8f0eSbostic #ifdef NAMED_BIND 1646f28da541Smiriam if (h_errno == TRY_AGAIN) 16474d50702aSeric statmsg = errstring(h_errno+E_DNSBASE); 1648f28da541Smiriam else 1649d4bd8f0eSbostic #endif 1650f28da541Smiriam { 16518557d168Seric if (errno != 0) 1652d87e85f3Seric statmsg = errstring(errno); 1653d87e85f3Seric else 1654d87e85f3Seric { 1655d87e85f3Seric #ifdef SMTP 1656d87e85f3Seric statmsg = SmtpError; 16576c2c3107Seric #else /* SMTP */ 1658d87e85f3Seric statmsg = NULL; 16596c2c3107Seric #endif /* SMTP */ 1660d87e85f3Seric } 1661f28da541Smiriam } 1662d87e85f3Seric if (statmsg != NULL && statmsg[0] != '\0') 1663d87e85f3Seric { 166487c9b3e7Seric (void) strcat(buf, ": "); 1665d87e85f3Seric (void) strcat(buf, statmsg); 16668557d168Seric } 1667198d9be0Seric statmsg = buf; 1668198d9be0Seric } 1669f170942cSeric #ifdef NAMED_BIND 1670f170942cSeric else if (stat == EX_NOHOST && h_errno != 0) 1671f170942cSeric { 16724d50702aSeric statmsg = errstring(h_errno + E_DNSBASE); 1673f170942cSeric (void) sprintf(buf, "%s (%s)", SysExMsg[i], statmsg); 1674f170942cSeric statmsg = buf; 1675f170942cSeric } 1676f170942cSeric #endif 167725a99e2eSeric else 1678d87e85f3Seric { 167925a99e2eSeric statmsg = SysExMsg[i]; 16807d55540cSeric if (*statmsg++ == ':') 16817d55540cSeric { 16827d55540cSeric (void) sprintf(buf, "%s: %s", statmsg, errstring(errno)); 16837d55540cSeric statmsg = buf; 16847d55540cSeric } 1685d87e85f3Seric } 1686588cad61Seric 1687588cad61Seric /* 1688588cad61Seric ** Print the message as appropriate 1689588cad61Seric */ 1690588cad61Seric 1691198d9be0Seric if (stat == EX_OK || stat == EX_TEMPFAIL) 1692df106f0bSeric { 1693df106f0bSeric extern char MsgBuf[]; 1694df106f0bSeric 1695e12d03eeSeric message(&statmsg[4], errstring(errno)); 1696df106f0bSeric if (stat == EX_TEMPFAIL && e->e_xfp != NULL) 1697df106f0bSeric fprintf(e->e_xfp, "%s\n", &MsgBuf[4]); 1698df106f0bSeric } 169925a99e2eSeric else 170025a99e2eSeric { 1701c1f9df2cSeric Errors++; 1702e12d03eeSeric usrerr(statmsg, errstring(errno)); 170325a99e2eSeric } 170425a99e2eSeric 170525a99e2eSeric /* 170625a99e2eSeric ** Final cleanup. 170725a99e2eSeric ** Log a record of the transaction. Compute the new 170825a99e2eSeric ** ExitStat -- if we already had an error, stick with 170925a99e2eSeric ** that. 171025a99e2eSeric */ 171125a99e2eSeric 17122f624c86Seric if (LogLevel > ((stat == EX_TEMPFAIL) ? 8 : (stat == EX_OK) ? 7 : 6)) 17134dee0003Seric logdelivery(m, mci, &statmsg[4], ctladdr, e); 1714eb238f8cSeric 1715eb238f8cSeric if (stat != EX_TEMPFAIL) 1716eb238f8cSeric setstat(stat); 17171097d4c9Seric if (stat != EX_OK && (stat != EX_TEMPFAIL || e->e_message == NULL)) 1718198d9be0Seric { 1719198d9be0Seric if (e->e_message != NULL) 1720198d9be0Seric free(e->e_message); 1721198d9be0Seric e->e_message = newstr(&statmsg[4]); 1722198d9be0Seric } 17238557d168Seric errno = 0; 1724d4bd8f0eSbostic #ifdef NAMED_BIND 1725f28da541Smiriam h_errno = 0; 1726d4bd8f0eSbostic #endif 1727eb238f8cSeric } 1728eb238f8cSeric /* 1729eb238f8cSeric ** LOGDELIVERY -- log the delivery in the system log 1730eb238f8cSeric ** 17312c9b4f99Seric ** Care is taken to avoid logging lines that are too long, because 17322c9b4f99Seric ** some versions of syslog have an unfortunate proclivity for core 17332c9b4f99Seric ** dumping. This is a hack, to be sure, that is at best empirical. 17342c9b4f99Seric ** 1735eb238f8cSeric ** Parameters: 173681161401Seric ** m -- the mailer info. Can be NULL for initial queue. 173781161401Seric ** mci -- the mailer connection info -- can be NULL if the 173881161401Seric ** log is occuring when no connection is active. 173981161401Seric ** stat -- the message to print for the status. 17404dee0003Seric ** ctladdr -- the controlling address for the to list. 174181161401Seric ** e -- the current envelope. 1742eb238f8cSeric ** 1743eb238f8cSeric ** Returns: 1744eb238f8cSeric ** none 1745eb238f8cSeric ** 1746eb238f8cSeric ** Side Effects: 1747eb238f8cSeric ** none 1748eb238f8cSeric */ 1749eb238f8cSeric 17504dee0003Seric logdelivery(m, mci, stat, ctladdr, e) 175181161401Seric MAILER *m; 175281161401Seric register MCI *mci; 1753eb238f8cSeric char *stat; 17544dee0003Seric ADDRESS *ctladdr; 1755b31e7f2bSeric register ENVELOPE *e; 17565cf56be3Seric { 1757eb238f8cSeric # ifdef LOG 17584dee0003Seric register char *bp; 17592c9b4f99Seric register char *p; 17602c9b4f99Seric int l; 1761d6acf3eeSeric char buf[512]; 17629507d1f9Seric 17633a100e8bSeric # if (SYSLOG_BUFSIZE) >= 256 17644dee0003Seric bp = buf; 17654dee0003Seric if (ctladdr != NULL) 17664dee0003Seric { 17674dee0003Seric strcpy(bp, ", ctladdr="); 1768f62f08c7Seric strcat(bp, shortenstring(ctladdr->q_paddr, 83)); 17694dee0003Seric bp += strlen(bp); 17704dee0003Seric if (bitset(QGOODUID, ctladdr->q_flags)) 17714dee0003Seric { 17724dee0003Seric (void) sprintf(bp, " (%d/%d)", 17734dee0003Seric ctladdr->q_uid, ctladdr->q_gid); 17744dee0003Seric bp += strlen(bp); 17754dee0003Seric } 17764dee0003Seric } 17774dee0003Seric 17784dee0003Seric (void) sprintf(bp, ", delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 17794dee0003Seric bp += strlen(bp); 178081161401Seric 178148ed5d33Seric if (m != NULL) 178271ff6caaSeric { 17834dee0003Seric (void) strcpy(bp, ", mailer="); 17844dee0003Seric (void) strcat(bp, m->m_name); 17854dee0003Seric bp += strlen(bp); 178671ff6caaSeric } 178748ed5d33Seric 178848ed5d33Seric if (mci != NULL && mci->mci_host != NULL) 178971ff6caaSeric { 179071ff6caaSeric # ifdef DAEMON 1791e2f2f828Seric extern SOCKADDR CurHostAddr; 179248ed5d33Seric # endif 179371ff6caaSeric 17944dee0003Seric (void) strcpy(bp, ", relay="); 17954dee0003Seric (void) strcat(bp, mci->mci_host); 179648ed5d33Seric 179748ed5d33Seric # ifdef DAEMON 1798*2bdfc6b9Seric (void) strcat(bp, " ["); 17994dee0003Seric (void) strcat(bp, anynet_ntoa(&CurHostAddr)); 1800*2bdfc6b9Seric (void) strcat(bp, "]"); 180171ff6caaSeric # endif 180271ff6caaSeric } 18039507d1f9Seric else 180448ed5d33Seric { 180548ed5d33Seric char *p = macvalue('h', e); 18069507d1f9Seric 180748ed5d33Seric if (p != NULL && p[0] != '\0') 180848ed5d33Seric { 18094dee0003Seric (void) strcpy(bp, ", relay="); 18104dee0003Seric (void) strcat(bp, p); 181148ed5d33Seric } 181248ed5d33Seric } 1813cb082c5bSeric bp += strlen(bp); 1814d6acf3eeSeric 18153a100e8bSeric #define STATLEN (((SYSLOG_BUFSIZE) - 100) / 4) 18163a100e8bSeric #if (STATLEN) < 63 18173a100e8bSeric # undef STATLEN 18183a100e8bSeric # define STATLEN 63 18193a100e8bSeric #endif 18203a100e8bSeric #if (STATLEN) > 203 18213a100e8bSeric # undef STATLEN 18223a100e8bSeric # define STATLEN 203 18233a100e8bSeric #endif 18243a100e8bSeric 18253a100e8bSeric if ((bp - buf) > (sizeof buf - ((STATLEN) + 20))) 18262c9b4f99Seric { 18272c9b4f99Seric /* desperation move -- truncate data */ 18283a100e8bSeric bp = buf + sizeof buf - ((STATLEN) + 17); 18292c9b4f99Seric strcpy(bp, "..."); 18302c9b4f99Seric bp += 3; 18312c9b4f99Seric } 18322c9b4f99Seric 18332c9b4f99Seric (void) strcpy(bp, ", stat="); 18342c9b4f99Seric bp += strlen(bp); 18353a100e8bSeric 18363a100e8bSeric (void) strcpy(bp, shortenstring(stat, (STATLEN))); 18372c9b4f99Seric 18382c9b4f99Seric l = SYSLOG_BUFSIZE - 100 - strlen(buf); 18392c9b4f99Seric p = e->e_to; 18402c9b4f99Seric while (strlen(p) >= l) 18412c9b4f99Seric { 18422c9b4f99Seric register char *q = strchr(p + l, ','); 18432c9b4f99Seric 18442a1b6b73Seric if (q == NULL) 18452c9b4f99Seric break; 18462c9b4f99Seric syslog(LOG_INFO, "%s: to=%.*s [more]%s", 18472c9b4f99Seric e->e_id, ++q - p, p, buf); 18482c9b4f99Seric p = q; 18492c9b4f99Seric } 18502c9b4f99Seric syslog(LOG_INFO, "%s: to=%s%s", e->e_id, p, buf); 18513a100e8bSeric 18523a100e8bSeric # else /* we have a very short log buffer size */ 18533a100e8bSeric 18544e797715Seric l = SYSLOG_BUFSIZE - 80; 18553a100e8bSeric p = e->e_to; 18563a100e8bSeric while (strlen(p) >= l) 18573a100e8bSeric { 18583a100e8bSeric register char *q = strchr(p + l, ','); 18593a100e8bSeric 18603a100e8bSeric if (q == NULL) 18613a100e8bSeric break; 18623a100e8bSeric syslog(LOG_INFO, "%s: to=%.*s [more]", 18633a100e8bSeric e->e_id, ++q - p, p); 18643a100e8bSeric p = q; 18653a100e8bSeric } 18663a100e8bSeric syslog(LOG_INFO, "%s: to=%s", e->e_id, p); 18673a100e8bSeric 18683a100e8bSeric if (ctladdr != NULL) 18693a100e8bSeric { 18703a100e8bSeric bp = buf; 18713a100e8bSeric strcpy(buf, "ctladdr="); 18723a100e8bSeric bp += strlen(buf); 18733a100e8bSeric strcpy(bp, shortenstring(ctladdr->q_paddr, 83)); 18743a100e8bSeric bp += strlen(buf); 18753a100e8bSeric if (bitset(QGOODUID, ctladdr->q_flags)) 18763a100e8bSeric { 18773a100e8bSeric (void) sprintf(bp, " (%d/%d)", 18783a100e8bSeric ctladdr->q_uid, ctladdr->q_gid); 18793a100e8bSeric bp += strlen(bp); 18803a100e8bSeric } 18813a100e8bSeric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 18823a100e8bSeric } 18834e797715Seric bp = buf; 18844e797715Seric sprintf(bp, "delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 18854e797715Seric bp += strlen(bp); 18863a100e8bSeric 18873a100e8bSeric if (m != NULL) 18884e797715Seric { 18894e797715Seric sprintf(bp, ", mailer=%s", m->m_name); 18904e797715Seric bp += strlen(bp); 18914e797715Seric } 18923a100e8bSeric 18933a100e8bSeric if (mci != NULL && mci->mci_host != NULL) 18943a100e8bSeric { 18953a100e8bSeric # ifdef DAEMON 18963a100e8bSeric extern SOCKADDR CurHostAddr; 18973a100e8bSeric # endif 18983a100e8bSeric 18994e797715Seric sprintf(bp, ", relay=%s", mci->mci_host); 19003a100e8bSeric 19013a100e8bSeric # ifdef DAEMON 1902*2bdfc6b9Seric (void) strcat(bp, " ["); 19034e797715Seric (void) strcat(bp, anynet_ntoa(&CurHostAddr)); 1904*2bdfc6b9Seric (void) strcat(bp, "]"); 19053a100e8bSeric # endif 19063a100e8bSeric } 19073a100e8bSeric else 19083a100e8bSeric { 19093a100e8bSeric char *p = macvalue('h', e); 19103a100e8bSeric 19113a100e8bSeric if (p != NULL && p[0] != '\0') 19124e797715Seric sprintf(bp, ", relay=%s", p); 19133a100e8bSeric } 19144e797715Seric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19153a100e8bSeric 19163a100e8bSeric syslog(LOG_INFO, "%s: stat=%s", e->e_id, shortenstring(stat, 63)); 19173a100e8bSeric # endif /* short log buffer */ 19186c2c3107Seric # endif /* LOG */ 191925a99e2eSeric } 192025a99e2eSeric /* 192151552439Seric ** PUTFROMLINE -- output a UNIX-style from line (or whatever) 192225a99e2eSeric ** 192351552439Seric ** This can be made an arbitrary message separator by changing $l 192451552439Seric ** 19259b6c17a6Seric ** One of the ugliest hacks seen by human eyes is contained herein: 19269b6c17a6Seric ** UUCP wants those stupid "remote from <host>" lines. Why oh why 19279b6c17a6Seric ** does a well-meaning programmer such as myself have to deal with 19289b6c17a6Seric ** this kind of antique garbage???? 192925a99e2eSeric ** 193025a99e2eSeric ** Parameters: 19315aa0f353Seric ** mci -- the connection information. 19325aa0f353Seric ** e -- the envelope. 193325a99e2eSeric ** 193425a99e2eSeric ** Returns: 193551552439Seric ** none 193625a99e2eSeric ** 193725a99e2eSeric ** Side Effects: 193851552439Seric ** outputs some text to fp. 193925a99e2eSeric */ 194025a99e2eSeric 19415aa0f353Seric putfromline(mci, e) 19425aa0f353Seric register MCI *mci; 1943b31e7f2bSeric ENVELOPE *e; 194425a99e2eSeric { 19452bc47524Seric char *template = "\201l\n"; 194651552439Seric char buf[MAXLINE]; 194725a99e2eSeric 19485aa0f353Seric if (bitnset(M_NHDR, mci->mci_mailer->m_flags)) 194951552439Seric return; 195013bbc08cSeric 19512c7e1b8dSeric # ifdef UGLYUUCP 19525aa0f353Seric if (bitnset(M_UGLYUUCP, mci->mci_mailer->m_flags)) 195374b6e67bSeric { 1954ea09d6edSeric char *bang; 1955ea09d6edSeric char xbuf[MAXLINE]; 195674b6e67bSeric 1957ee4b0922Seric expand("\201g", buf, &buf[sizeof buf - 1], e); 19586c2c3107Seric bang = strchr(buf, '!'); 195974b6e67bSeric if (bang == NULL) 196034fcca25Seric { 196134fcca25Seric errno = 0; 196234fcca25Seric syserr("554 No ! in UUCP From address! (%s given)", buf); 196334fcca25Seric } 196474b6e67bSeric else 1965588cad61Seric { 1966ea09d6edSeric *bang++ = '\0'; 19672bc47524Seric (void) sprintf(xbuf, "From %s \201d remote from %s\n", bang, buf); 1968ea09d6edSeric template = xbuf; 196974b6e67bSeric } 1970588cad61Seric } 19716c2c3107Seric # endif /* UGLYUUCP */ 1972b31e7f2bSeric expand(template, buf, &buf[sizeof buf - 1], e); 19735aa0f353Seric putline(buf, mci); 1974bc6e2962Seric } 1975bc6e2962Seric /* 197651552439Seric ** PUTBODY -- put the body of a message. 197751552439Seric ** 197851552439Seric ** Parameters: 19795aa0f353Seric ** mci -- the connection information. 19809a6a5f55Seric ** e -- the envelope to put out. 198103c02fdeSeric ** separator -- if non-NULL, a message separator that must 198203c02fdeSeric ** not be permitted in the resulting message. 198351552439Seric ** 198451552439Seric ** Returns: 198551552439Seric ** none. 198651552439Seric ** 198751552439Seric ** Side Effects: 198851552439Seric ** The message is written onto fp. 198951552439Seric */ 199051552439Seric 19915aa0f353Seric putbody(mci, e, separator) 19925aa0f353Seric register MCI *mci; 19939a6a5f55Seric register ENVELOPE *e; 199403c02fdeSeric char *separator; 199551552439Seric { 199677b52738Seric char buf[MAXLINE]; 199751552439Seric 199851552439Seric /* 199951552439Seric ** Output the body of the message 200051552439Seric */ 200151552439Seric 20029a6a5f55Seric if (e->e_dfp == NULL) 200351552439Seric { 20049a6a5f55Seric if (e->e_df != NULL) 20059a6a5f55Seric { 20069a6a5f55Seric e->e_dfp = fopen(e->e_df, "r"); 20079a6a5f55Seric if (e->e_dfp == NULL) 20088f9146b0Srick syserr("putbody: Cannot open %s for %s from %s", 2009e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 20109a6a5f55Seric } 20119a6a5f55Seric else 20125aa0f353Seric putline("<<< No Message Collected >>>", mci); 20139a6a5f55Seric } 20149a6a5f55Seric if (e->e_dfp != NULL) 20159a6a5f55Seric { 20169a6a5f55Seric rewind(e->e_dfp); 20175aa0f353Seric while (!ferror(mci->mci_out) && fgets(buf, sizeof buf, e->e_dfp) != NULL) 201824fc8aeeSeric { 20195aa0f353Seric if (buf[0] == 'F' && 20205aa0f353Seric bitnset(M_ESCFROM, mci->mci_mailer->m_flags) && 2021d6fa2b58Sbostic strncmp(buf, "From ", 5) == 0) 20225aa0f353Seric (void) putc('>', mci->mci_out); 202303c02fdeSeric if (buf[0] == '-' && buf[1] == '-' && separator != NULL) 202403c02fdeSeric { 202503c02fdeSeric /* possible separator */ 202603c02fdeSeric int sl = strlen(separator); 202703c02fdeSeric 202803c02fdeSeric if (strncmp(&buf[2], separator, sl) == 0) 20295aa0f353Seric (void) putc(' ', mci->mci_out); 203003c02fdeSeric } 20315aa0f353Seric putline(buf, mci); 203224fc8aeeSeric } 203351552439Seric 20349a6a5f55Seric if (ferror(e->e_dfp)) 203551552439Seric { 2036df106f0bSeric syserr("putbody: %s: read error", e->e_df); 203751552439Seric ExitStat = EX_IOERR; 203851552439Seric } 203951552439Seric } 204051552439Seric 20410890ba1fSeric /* some mailers want extra blank line at end of message */ 20425aa0f353Seric if (bitnset(M_BLANKEND, mci->mci_mailer->m_flags) && 20435aa0f353Seric buf[0] != '\0' && buf[0] != '\n') 20445aa0f353Seric putline("", mci); 20450890ba1fSeric 20465aa0f353Seric (void) fflush(mci->mci_out); 20475aa0f353Seric if (ferror(mci->mci_out) && errno != EPIPE) 204851552439Seric { 204951552439Seric syserr("putbody: write error"); 205051552439Seric ExitStat = EX_IOERR; 205151552439Seric } 205251552439Seric errno = 0; 205325a99e2eSeric } 205425a99e2eSeric /* 205525a99e2eSeric ** MAILFILE -- Send a message to a file. 205625a99e2eSeric ** 2057f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 2058f129ec7dSeric ** bits, sendmail will try to become the owner of that file 2059f129ec7dSeric ** rather than the real user. Obviously, this only works if 2060f129ec7dSeric ** sendmail runs as root. 2061f129ec7dSeric ** 2062588cad61Seric ** This could be done as a subordinate mailer, except that it 2063588cad61Seric ** is used implicitly to save messages in ~/dead.letter. We 2064588cad61Seric ** view this as being sufficiently important as to include it 2065588cad61Seric ** here. For example, if the system is dying, we shouldn't have 2066588cad61Seric ** to create another process plus some pipes to save the message. 2067588cad61Seric ** 206825a99e2eSeric ** Parameters: 206925a99e2eSeric ** filename -- the name of the file to send to. 20706259796dSeric ** ctladdr -- the controlling address header -- includes 20716259796dSeric ** the userid/groupid to be when sending. 207225a99e2eSeric ** 207325a99e2eSeric ** Returns: 207425a99e2eSeric ** The exit code associated with the operation. 207525a99e2eSeric ** 207625a99e2eSeric ** Side Effects: 207725a99e2eSeric ** none. 207825a99e2eSeric */ 207925a99e2eSeric 2080b31e7f2bSeric mailfile(filename, ctladdr, e) 208125a99e2eSeric char *filename; 20826259796dSeric ADDRESS *ctladdr; 2083b31e7f2bSeric register ENVELOPE *e; 208425a99e2eSeric { 208525a99e2eSeric register FILE *f; 208632d19d43Seric register int pid; 208715d084d5Seric int mode; 208825a99e2eSeric 2089671745f3Seric if (tTd(11, 1)) 2090671745f3Seric { 2091671745f3Seric printf("mailfile %s\n ctladdr=", filename); 2092671745f3Seric printaddr(ctladdr, FALSE); 2093671745f3Seric } 2094671745f3Seric 2095f170942cSeric if (e->e_xfp != NULL) 2096f170942cSeric fflush(e->e_xfp); 2097f170942cSeric 209832d19d43Seric /* 209932d19d43Seric ** Fork so we can change permissions here. 210032d19d43Seric ** Note that we MUST use fork, not vfork, because of 210132d19d43Seric ** the complications of calling subroutines, etc. 210232d19d43Seric */ 210332d19d43Seric 210432d19d43Seric DOFORK(fork); 210532d19d43Seric 210632d19d43Seric if (pid < 0) 210732d19d43Seric return (EX_OSERR); 210832d19d43Seric else if (pid == 0) 210932d19d43Seric { 211032d19d43Seric /* child -- actually write to file */ 2111f129ec7dSeric struct stat stb; 21125aa0f353Seric MCI mcibuf; 2113f129ec7dSeric 21142b9178d3Seric (void) setsignal(SIGINT, SIG_DFL); 21152b9178d3Seric (void) setsignal(SIGHUP, SIG_DFL); 21162b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 21173462ad9eSeric (void) umask(OldUmask); 211895f16dc0Seric 2119f129ec7dSeric if (stat(filename, &stb) < 0) 21203a98e7eaSeric stb.st_mode = FileMode; 212115d084d5Seric mode = stb.st_mode; 212295f16dc0Seric 212395f16dc0Seric /* limit the errors to those actually caused in the child */ 212495f16dc0Seric errno = 0; 212595f16dc0Seric ExitStat = EX_OK; 212695f16dc0Seric 2127f129ec7dSeric if (bitset(0111, stb.st_mode)) 2128f129ec7dSeric exit(EX_CANTCREAT); 212919428781Seric if (ctladdr != NULL) 213015d084d5Seric { 213115d084d5Seric /* ignore setuid and setgid bits */ 213215d084d5Seric mode &= ~(S_ISGID|S_ISUID); 213315d084d5Seric } 213415d084d5Seric 21358f9146b0Srick /* we have to open the dfile BEFORE setuid */ 21368f9146b0Srick if (e->e_dfp == NULL && e->e_df != NULL) 21378f9146b0Srick { 21388f9146b0Srick e->e_dfp = fopen(e->e_df, "r"); 213995f16dc0Seric if (e->e_dfp == NULL) 214095f16dc0Seric { 21418f9146b0Srick syserr("mailfile: Cannot open %s for %s from %s", 2142e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 21438f9146b0Srick } 21448f9146b0Srick } 21458f9146b0Srick 214615d084d5Seric if (!bitset(S_ISGID, mode) || setgid(stb.st_gid) < 0) 2147e36b99e2Seric { 214819428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 214995f16dc0Seric { 2150898a126bSbostic (void) initgroups(DefUser, DefGid); 215195f16dc0Seric } 215295f16dc0Seric else 215395f16dc0Seric { 2154898a126bSbostic (void) initgroups(ctladdr->q_ruser ? 2155898a126bSbostic ctladdr->q_ruser : ctladdr->q_user, 2156898a126bSbostic ctladdr->q_gid); 2157898a126bSbostic } 2158e36b99e2Seric } 215915d084d5Seric if (!bitset(S_ISUID, mode) || setuid(stb.st_uid) < 0) 2160e36b99e2Seric { 216119428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 2162e36b99e2Seric (void) setuid(DefUid); 2163e36b99e2Seric else 21646259796dSeric (void) setuid(ctladdr->q_uid); 2165e36b99e2Seric } 216695f16dc0Seric FileName = filename; 216795f16dc0Seric LineNumber = 0; 21683a98e7eaSeric f = dfopen(filename, O_WRONLY|O_CREAT|O_APPEND, FileMode); 216925a99e2eSeric if (f == NULL) 217095f16dc0Seric { 2171b6a0de9dSeric message("554 cannot open: %s", errstring(errno)); 217232d19d43Seric exit(EX_CANTCREAT); 217395f16dc0Seric } 217425a99e2eSeric 21755aa0f353Seric bzero(&mcibuf, sizeof mcibuf); 21765aa0f353Seric mcibuf.mci_mailer = FileMailer; 21775aa0f353Seric mcibuf.mci_out = f; 21785aa0f353Seric if (bitnset(M_7BITS, FileMailer->m_flags)) 21795aa0f353Seric mcibuf.mci_flags |= MCIF_7BIT; 21805aa0f353Seric 21815aa0f353Seric putfromline(&mcibuf, e); 21825aa0f353Seric (*e->e_puthdr)(&mcibuf, e); 21835aa0f353Seric putline("\n", &mcibuf); 21845aa0f353Seric (*e->e_putbody)(&mcibuf, e, NULL); 21855aa0f353Seric putline("\n", &mcibuf); 218695f16dc0Seric if (ferror(f)) 218795f16dc0Seric { 2188b6a0de9dSeric message("451 I/O error: %s", errstring(errno)); 218995f16dc0Seric setstat(EX_IOERR); 219095f16dc0Seric } 2191ee4b0922Seric (void) xfclose(f, "mailfile", filename); 219232d19d43Seric (void) fflush(stdout); 2193e36b99e2Seric 219427628d59Seric /* reset ISUID & ISGID bits for paranoid systems */ 2195c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 219695f16dc0Seric exit(ExitStat); 219713bbc08cSeric /*NOTREACHED*/ 219832d19d43Seric } 219932d19d43Seric else 220032d19d43Seric { 220132d19d43Seric /* parent -- wait for exit status */ 2202588cad61Seric int st; 220332d19d43Seric 2204588cad61Seric st = waitfor(pid); 2205bf9bc890Seric if (WIFEXITED(st)) 2206bf9bc890Seric return (WEXITSTATUS(st)); 2207588cad61Seric else 2208b6a0de9dSeric { 2209b6a0de9dSeric syserr("child died on signal %d", st); 2210bf9bc890Seric return (EX_UNAVAILABLE); 2211b6a0de9dSeric } 22128f9146b0Srick /*NOTREACHED*/ 221332d19d43Seric } 221425a99e2eSeric } 2215ea4dc939Seric /* 2216e103b48fSeric ** HOSTSIGNATURE -- return the "signature" for a host. 2217e103b48fSeric ** 2218e103b48fSeric ** The signature describes how we are going to send this -- it 2219e103b48fSeric ** can be just the hostname (for non-Internet hosts) or can be 2220e103b48fSeric ** an ordered list of MX hosts. 2221e103b48fSeric ** 2222e103b48fSeric ** Parameters: 2223e103b48fSeric ** m -- the mailer describing this host. 2224e103b48fSeric ** host -- the host name. 2225e103b48fSeric ** e -- the current envelope. 2226e103b48fSeric ** 2227e103b48fSeric ** Returns: 2228e103b48fSeric ** The signature for this host. 2229e103b48fSeric ** 2230e103b48fSeric ** Side Effects: 2231e103b48fSeric ** Can tweak the symbol table. 2232e103b48fSeric */ 2233e103b48fSeric 2234e103b48fSeric char * 2235e103b48fSeric hostsignature(m, host, e) 2236e103b48fSeric register MAILER *m; 2237e103b48fSeric char *host; 2238e103b48fSeric ENVELOPE *e; 2239e103b48fSeric { 2240e103b48fSeric register char *p; 2241e103b48fSeric register STAB *s; 2242e103b48fSeric int i; 2243e103b48fSeric int len; 2244e103b48fSeric #ifdef NAMED_BIND 2245e103b48fSeric int nmx; 2246e103b48fSeric auto int rcode; 2247bafdc4e5Seric char *hp; 2248bafdc4e5Seric char *endp; 2249516782b4Seric int oldoptions; 2250e103b48fSeric char *mxhosts[MAXMXHOSTS + 1]; 2251e103b48fSeric #endif 2252e103b48fSeric 2253e103b48fSeric /* 2254e103b48fSeric ** Check to see if this uses IPC -- if not, it can't have MX records. 2255e103b48fSeric */ 2256e103b48fSeric 2257e103b48fSeric p = m->m_mailer; 2258e103b48fSeric if (strcmp(p, "[IPC]") != 0 && strcmp(p, "[TCP]") != 0) 2259e103b48fSeric { 2260e103b48fSeric /* just an ordinary mailer */ 2261e103b48fSeric return host; 2262e103b48fSeric } 2263e103b48fSeric 2264e103b48fSeric /* 2265e103b48fSeric ** Look it up in the symbol table. 2266e103b48fSeric */ 2267e103b48fSeric 2268e103b48fSeric s = stab(host, ST_HOSTSIG, ST_ENTER); 2269e103b48fSeric if (s->s_hostsig != NULL) 2270e103b48fSeric return s->s_hostsig; 2271e103b48fSeric 2272e103b48fSeric /* 2273e103b48fSeric ** Not already there -- create a signature. 2274e103b48fSeric */ 2275e103b48fSeric 2276e103b48fSeric #ifdef NAMED_BIND 2277516782b4Seric if (ConfigLevel < 2) 2278516782b4Seric { 2279516782b4Seric oldoptions = _res.options; 2280516782b4Seric _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 2281516782b4Seric } 2282516782b4Seric 2283bafdc4e5Seric for (hp = host; hp != NULL; hp = endp) 2284bafdc4e5Seric { 2285bafdc4e5Seric endp = strchr(hp, ':'); 2286bafdc4e5Seric if (endp != NULL) 2287bafdc4e5Seric *endp = '\0'; 2288bafdc4e5Seric 22897bf809e6Seric nmx = getmxrr(hp, mxhosts, TRUE, &rcode); 22907d55540cSeric 2291e103b48fSeric if (nmx <= 0) 2292e103b48fSeric { 2293e103b48fSeric register MCI *mci; 2294e103b48fSeric 2295e103b48fSeric /* update the connection info for this host */ 2296bafdc4e5Seric mci = mci_get(hp, m); 2297e103b48fSeric mci->mci_exitstat = rcode; 2298e103b48fSeric mci->mci_errno = errno; 2299f170942cSeric #ifdef NAMED_BIND 2300f170942cSeric mci->mci_herrno = h_errno; 2301f170942cSeric #endif 2302e103b48fSeric 2303e103b48fSeric /* and return the original host name as the signature */ 2304bafdc4e5Seric nmx = 1; 2305bafdc4e5Seric mxhosts[0] = hp; 2306e103b48fSeric } 2307e103b48fSeric 2308e103b48fSeric len = 0; 2309e103b48fSeric for (i = 0; i < nmx; i++) 2310e103b48fSeric { 2311e103b48fSeric len += strlen(mxhosts[i]) + 1; 2312e103b48fSeric } 2313bafdc4e5Seric if (s->s_hostsig != NULL) 2314bafdc4e5Seric len += strlen(s->s_hostsig) + 1; 2315bafdc4e5Seric p = xalloc(len); 2316bafdc4e5Seric if (s->s_hostsig != NULL) 2317bafdc4e5Seric { 2318bafdc4e5Seric (void) strcpy(p, s->s_hostsig); 2319bafdc4e5Seric free(s->s_hostsig); 2320bafdc4e5Seric s->s_hostsig = p; 2321bafdc4e5Seric p += strlen(p); 2322bafdc4e5Seric *p++ = ':'; 2323bafdc4e5Seric } 2324bafdc4e5Seric else 2325bafdc4e5Seric s->s_hostsig = p; 2326e103b48fSeric for (i = 0; i < nmx; i++) 2327e103b48fSeric { 2328e103b48fSeric if (i != 0) 2329e103b48fSeric *p++ = ':'; 2330e103b48fSeric strcpy(p, mxhosts[i]); 2331e103b48fSeric p += strlen(p); 2332e103b48fSeric } 2333bafdc4e5Seric if (endp != NULL) 2334bafdc4e5Seric *endp++ = ':'; 2335bafdc4e5Seric } 2336e103b48fSeric makelower(s->s_hostsig); 2337516782b4Seric if (ConfigLevel < 2) 2338516782b4Seric _res.options = oldoptions; 2339e103b48fSeric #else 2340e103b48fSeric /* not using BIND -- the signature is just the host name */ 2341e103b48fSeric s->s_hostsig = host; 2342e103b48fSeric #endif 2343e103b48fSeric if (tTd(17, 1)) 2344e103b48fSeric printf("hostsignature(%s) = %s\n", host, s->s_hostsig); 2345e103b48fSeric return s->s_hostsig; 2346e103b48fSeric } 2347