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*b056abd0Seric static char sccsid[] = "@(#)deliver.c 8.68 (Berkeley) 02/06/94"; 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; 50*b056abd0Seric register ENVELOPE *ee; 51*b056abd0Seric 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, 103f7869e68Seric RealHostName == NULL ? "localhost" : RealHostName, 104f7869e68Seric e->e_sendqueue->q_paddr); 1059c9e68d9Seric return; 1069c9e68d9Seric } 1079c9e68d9Seric 108b8004690Seric /* 109b8004690Seric ** Do sender deletion. 110b8004690Seric ** 111b8004690Seric ** If the sender has the QQUEUEUP flag set, skip this. 112b8004690Seric ** This can happen if the name server is hosed when you 113b8004690Seric ** are trying to send mail. The result is that the sender 114b8004690Seric ** is instantiated in the queue as a recipient. 115b8004690Seric */ 116b8004690Seric 117e76a6a8fSeric if (!bitset(EF_METOO, e->e_flags) && 118e76a6a8fSeric !bitset(QQUEUEUP, e->e_from.q_flags)) 1199c9e68d9Seric { 1209c9e68d9Seric if (tTd(13, 5)) 1219c9e68d9Seric { 1229c9e68d9Seric printf("sendall: QDONTSEND "); 1239c9e68d9Seric printaddr(&e->e_from, FALSE); 1249c9e68d9Seric } 1259c9e68d9Seric e->e_from.q_flags |= QDONTSEND; 1269c9e68d9Seric (void) recipient(&e->e_from, &e->e_sendqueue, e); 1279c9e68d9Seric } 1289c9e68d9Seric 129ce5531bdSeric /* 130ce5531bdSeric ** Handle alias owners. 131ce5531bdSeric ** 132ce5531bdSeric ** We scan up the q_alias chain looking for owners. 133ce5531bdSeric ** We discard owners that are the same as the return path. 134ce5531bdSeric */ 135ce5531bdSeric 136ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 137ce5531bdSeric { 138ce5531bdSeric register struct address *a; 139ce5531bdSeric 140ce5531bdSeric for (a = q; a != NULL && a->q_owner == NULL; a = a->q_alias) 141ce5531bdSeric continue; 142ce5531bdSeric if (a != NULL) 143ce5531bdSeric q->q_owner = a->q_owner; 144ce5531bdSeric 145ce5531bdSeric if (q->q_owner != NULL && 146ce5531bdSeric !bitset(QDONTSEND, q->q_flags) && 147ce5531bdSeric strcmp(q->q_owner, e->e_from.q_paddr) == 0) 148ce5531bdSeric q->q_owner = NULL; 149ce5531bdSeric } 150ce5531bdSeric 151ce5531bdSeric owner = ""; 152ce5531bdSeric otherowners = 1; 153ce5531bdSeric while (owner != NULL && otherowners > 0) 154ce5531bdSeric { 155ce5531bdSeric owner = NULL; 156ce5531bdSeric otherowners = 0; 157ce5531bdSeric 158ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 159ce5531bdSeric { 160ce5531bdSeric if (bitset(QDONTSEND, q->q_flags)) 161ce5531bdSeric continue; 162ce5531bdSeric 163ce5531bdSeric if (q->q_owner != NULL) 164ce5531bdSeric { 165ce5531bdSeric if (owner == NULL) 166ce5531bdSeric owner = q->q_owner; 167ce5531bdSeric else if (owner != q->q_owner) 168ce5531bdSeric { 169ce5531bdSeric if (strcmp(owner, q->q_owner) == 0) 170ce5531bdSeric { 171ce5531bdSeric /* make future comparisons cheap */ 172ce5531bdSeric q->q_owner = owner; 173ce5531bdSeric } 174ce5531bdSeric else 175ce5531bdSeric { 176ce5531bdSeric otherowners++; 177ce5531bdSeric } 178ce5531bdSeric owner = q->q_owner; 179ce5531bdSeric } 180ce5531bdSeric } 181ce5531bdSeric else 182ce5531bdSeric { 183ce5531bdSeric otherowners++; 184ce5531bdSeric } 185ce5531bdSeric } 186ce5531bdSeric 187ce5531bdSeric if (owner != NULL && otherowners > 0) 188ce5531bdSeric { 189ce5531bdSeric extern HDR *copyheader(); 190ce5531bdSeric extern ADDRESS *copyqueue(); 191ce5531bdSeric 192ce5531bdSeric /* 193ce5531bdSeric ** Split this envelope into two. 194ce5531bdSeric */ 195ce5531bdSeric 196ce5531bdSeric ee = (ENVELOPE *) xalloc(sizeof(ENVELOPE)); 197ce5531bdSeric *ee = *e; 198ce5531bdSeric ee->e_id = NULL; 199ce5531bdSeric (void) queuename(ee, '\0'); 200ce5531bdSeric 201ce5531bdSeric if (tTd(13, 1)) 202ce5531bdSeric printf("sendall: split %s into %s\n", 203ce5531bdSeric e->e_id, ee->e_id); 204ce5531bdSeric 205ce5531bdSeric ee->e_header = copyheader(e->e_header); 206ce5531bdSeric ee->e_sendqueue = copyqueue(e->e_sendqueue); 207ce5531bdSeric ee->e_errorqueue = copyqueue(e->e_errorqueue); 208ce5531bdSeric ee->e_flags = e->e_flags & ~(EF_INQUEUE|EF_CLRQUEUE|EF_FATALERRS); 209ce5531bdSeric setsender(owner, ee, NULL, TRUE); 210ce5531bdSeric if (tTd(13, 5)) 211ce5531bdSeric { 212ce5531bdSeric printf("sendall(split): QDONTSEND "); 213ce5531bdSeric printaddr(&ee->e_from, FALSE); 214ce5531bdSeric } 215ce5531bdSeric ee->e_from.q_flags |= QDONTSEND; 216ce5531bdSeric ee->e_dfp = NULL; 217ce5531bdSeric ee->e_xfp = NULL; 218ce5531bdSeric ee->e_df = NULL; 219ce5531bdSeric ee->e_errormode = EM_MAIL; 220*b056abd0Seric ee->e_sibling = splitenv; 221*b056abd0Seric splitenv = ee; 222ce5531bdSeric 223ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 224ce5531bdSeric if (q->q_owner == owner) 225ce5531bdSeric q->q_flags |= QDONTSEND; 226ce5531bdSeric for (q = ee->e_sendqueue; q != NULL; q = q->q_next) 227ce5531bdSeric if (q->q_owner != owner) 228ce5531bdSeric q->q_flags |= QDONTSEND; 229ce5531bdSeric 230ce5531bdSeric if (e->e_df != NULL && mode != SM_VERIFY) 231ce5531bdSeric { 232ce5531bdSeric ee->e_dfp = NULL; 233da662164Seric ee->e_df = queuename(ee, 'd'); 234da662164Seric ee->e_df = newstr(ee->e_df); 235ce5531bdSeric if (link(e->e_df, ee->e_df) < 0) 236ce5531bdSeric { 237ce5531bdSeric syserr("sendall: link(%s, %s)", 238ce5531bdSeric e->e_df, ee->e_df); 239ce5531bdSeric } 240ce5531bdSeric } 241ce5531bdSeric 242ce5531bdSeric if (mode != SM_VERIFY) 243ce5531bdSeric openxscript(ee); 244ce5531bdSeric #ifdef LOG 245ce5531bdSeric if (LogLevel > 4) 246ce5531bdSeric syslog(LOG_INFO, "%s: clone %s", 247ce5531bdSeric ee->e_id, e->e_id); 248ce5531bdSeric #endif 249ce5531bdSeric } 250ce5531bdSeric } 251ce5531bdSeric 252ce5531bdSeric if (owner != NULL) 253ce5531bdSeric { 254ce5531bdSeric setsender(owner, e, NULL, TRUE); 255ce5531bdSeric if (tTd(13, 5)) 256ce5531bdSeric { 257ce5531bdSeric printf("sendall(owner): QDONTSEND "); 258ce5531bdSeric printaddr(&e->e_from, FALSE); 259ce5531bdSeric } 260ce5531bdSeric e->e_from.q_flags |= QDONTSEND; 261ce5531bdSeric e->e_errormode = EM_MAIL; 262ce5531bdSeric } 263ce5531bdSeric 264c1ac89b1Seric # ifdef QUEUE 265c1ac89b1Seric if ((mode == SM_QUEUE || mode == SM_FORK || 266c1ac89b1Seric (mode != SM_VERIFY && SuperSafe)) && 267c1ac89b1Seric !bitset(EF_INQUEUE, e->e_flags)) 268c1ac89b1Seric { 269c1ac89b1Seric /* be sure everything is instantiated in the queue */ 2706103d9b4Seric queueup(e, TRUE, announcequeueup); 271*b056abd0Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 272*b056abd0Seric queueup(ee, TRUE, announcequeueup); 273c1ac89b1Seric } 274c1ac89b1Seric #endif /* QUEUE */ 275c1ac89b1Seric 276*b056abd0Seric if (splitenv != NULL) 277*b056abd0Seric { 278*b056abd0Seric if (tTd(13, 1)) 279*b056abd0Seric { 280*b056abd0Seric printf("\nsendall: Split queue; remaining queue:\n"); 281*b056abd0Seric printaddr(e->e_sendqueue, TRUE); 282*b056abd0Seric } 283*b056abd0Seric 284*b056abd0Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 285*b056abd0Seric { 286*b056abd0Seric CurEnv = ee; 287*b056abd0Seric sendenvelope(ee, mode); 288*b056abd0Seric } 289*b056abd0Seric 290*b056abd0Seric CurEnv = e; 291*b056abd0Seric } 292*b056abd0Seric sendenvelope(e, mode); 293*b056abd0Seric 294*b056abd0Seric for (; splitenv != NULL; splitenv = splitenv->e_sibling) 295*b056abd0Seric dropenvelope(splitenv); 296*b056abd0Seric } 297*b056abd0Seric 298*b056abd0Seric sendenvelope(e, mode) 299*b056abd0Seric register ENVELOPE *e; 300*b056abd0Seric char mode; 301*b056abd0Seric { 302*b056abd0Seric bool oldverbose; 303*b056abd0Seric int pid; 304*b056abd0Seric register ADDRESS *q; 305*b056abd0Seric char *qf; 306*b056abd0Seric char *id; 307*b056abd0Seric 3087880f3e4Seric /* 3097880f3e4Seric ** If we have had global, fatal errors, don't bother sending 3107880f3e4Seric ** the message at all if we are in SMTP mode. Local errors 3117880f3e4Seric ** (e.g., a single address failing) will still cause the other 3127880f3e4Seric ** addresses to be sent. 3137880f3e4Seric */ 3147880f3e4Seric 3158d19a23dSeric if (bitset(EF_FATALERRS, e->e_flags) && 3168d19a23dSeric (OpMode == MD_SMTP || OpMode == MD_DAEMON)) 3177880f3e4Seric { 3187880f3e4Seric e->e_flags |= EF_CLRQUEUE; 3197880f3e4Seric return; 3207880f3e4Seric } 3217880f3e4Seric 322ce5531bdSeric oldverbose = Verbose; 323c1ac89b1Seric switch (mode) 324c1ac89b1Seric { 325c1ac89b1Seric case SM_VERIFY: 326c1ac89b1Seric Verbose = TRUE; 327c1ac89b1Seric break; 328c1ac89b1Seric 329c1ac89b1Seric case SM_QUEUE: 330c1ac89b1Seric queueonly: 331c1ac89b1Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 332c1ac89b1Seric return; 333c1ac89b1Seric 334c1ac89b1Seric case SM_FORK: 335c1ac89b1Seric if (e->e_xfp != NULL) 336c1ac89b1Seric (void) fflush(e->e_xfp); 337c1ac89b1Seric 338b269aa8eSeric # if !HASFLOCK 339c1ac89b1Seric /* 3406b2765c6Seric ** Since fcntl locking has the interesting semantic that 3416b2765c6Seric ** the lock is owned by a process, not by an open file 3426b2765c6Seric ** descriptor, we have to flush this to the queue, and 3436b2765c6Seric ** then restart from scratch in the child. 344c1ac89b1Seric */ 345c1ac89b1Seric 3466b2765c6Seric /* save id for future use */ 3476b2765c6Seric id = e->e_id; 3486b2765c6Seric 3496b2765c6Seric /* now drop the envelope in the parent */ 3506b2765c6Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 3516b2765c6Seric dropenvelope(e); 3526b2765c6Seric 3536b2765c6Seric /* and reacquire in the child */ 3546b2765c6Seric (void) dowork(id, TRUE, FALSE, e); 3556b2765c6Seric 3566b2765c6Seric return; 3576b2765c6Seric 3586b2765c6Seric # else /* HASFLOCK */ 359c1ac89b1Seric 360c1ac89b1Seric pid = fork(); 361c1ac89b1Seric if (pid < 0) 362c1ac89b1Seric { 363c1ac89b1Seric goto queueonly; 364c1ac89b1Seric } 365c1ac89b1Seric else if (pid > 0) 366c1ac89b1Seric { 3670e484fe5Seric /* be sure we leave the temp files to our child */ 3680e484fe5Seric /* can't call unlockqueue to avoid unlink of xfp */ 3690e484fe5Seric if (e->e_lockfp != NULL) 3700e484fe5Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 3710e484fe5Seric e->e_lockfp = NULL; 3720e484fe5Seric 3730e484fe5Seric /* close any random open files in the envelope */ 3740e484fe5Seric closexscript(e); 3750e484fe5Seric if (e->e_dfp != NULL) 3760e484fe5Seric (void) xfclose(e->e_dfp, "sendenvelope", e->e_df); 3770e484fe5Seric e->e_dfp = NULL; 3780e484fe5Seric e->e_id = e->e_df = NULL; 379c1ac89b1Seric return; 380c1ac89b1Seric } 381c1ac89b1Seric 382c1ac89b1Seric /* double fork to avoid zombies */ 383c1ac89b1Seric if (fork() > 0) 384c1ac89b1Seric exit(EX_OK); 385c1ac89b1Seric 386c1ac89b1Seric /* be sure we are immune from the terminal */ 3877880f3e4Seric disconnect(1, e); 388c1ac89b1Seric 389c1ac89b1Seric /* 390c1ac89b1Seric ** Close any cached connections. 391c1ac89b1Seric ** 392c1ac89b1Seric ** We don't send the QUIT protocol because the parent 393c1ac89b1Seric ** still knows about the connection. 394c1ac89b1Seric ** 395c1ac89b1Seric ** This should only happen when delivering an error 396c1ac89b1Seric ** message. 397c1ac89b1Seric */ 398c1ac89b1Seric 399c1ac89b1Seric mci_flush(FALSE, NULL); 400c1ac89b1Seric 4016b2765c6Seric # endif /* HASFLOCK */ 4026b2765c6Seric 403c1ac89b1Seric break; 404c1ac89b1Seric } 405c1ac89b1Seric 406c1ac89b1Seric /* 4079c9e68d9Seric ** Run through the list and send everything. 4085288e21aSeric ** 4095288e21aSeric ** Set EF_GLOBALERRS so that error messages during delivery 4105288e21aSeric ** result in returned mail. 4119c9e68d9Seric */ 4129c9e68d9Seric 4139c9e68d9Seric e->e_nsent = 0; 4145288e21aSeric e->e_flags |= EF_GLOBALERRS; 415faad2b16Seric 416faad2b16Seric /* now run through the queue */ 4179c9e68d9Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 4189c9e68d9Seric { 419fdc75a0fSeric #ifdef XDEBUG 420fdc75a0fSeric char wbuf[MAXNAME + 20]; 421fdc75a0fSeric 422fdc75a0fSeric (void) sprintf(wbuf, "sendall(%s)", q->q_paddr); 423fdc75a0fSeric checkfd012(wbuf); 424fdc75a0fSeric #endif 4259c9e68d9Seric if (mode == SM_VERIFY) 4269c9e68d9Seric { 4279c9e68d9Seric e->e_to = q->q_paddr; 4289c9e68d9Seric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4298dfca105Seric { 430fafe46e1Seric if (q->q_host != NULL && q->q_host[0] != '\0') 4318dfca105Seric message("deliverable: mailer %s, host %s, user %s", 4328dfca105Seric q->q_mailer->m_name, 4338dfca105Seric q->q_host, 4348dfca105Seric q->q_user); 435fafe46e1Seric else 436fafe46e1Seric message("deliverable: mailer %s, user %s", 437fafe46e1Seric q->q_mailer->m_name, 438fafe46e1Seric q->q_user); 4398dfca105Seric } 4409c9e68d9Seric } 4419c9e68d9Seric else if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4429c9e68d9Seric { 4439c9e68d9Seric # ifdef QUEUE 4449c9e68d9Seric /* 4459c9e68d9Seric ** Checkpoint the send list every few addresses 4469c9e68d9Seric */ 4479c9e68d9Seric 4489c9e68d9Seric if (e->e_nsent >= CheckpointInterval) 4499c9e68d9Seric { 4509c9e68d9Seric queueup(e, TRUE, FALSE); 4519c9e68d9Seric e->e_nsent = 0; 4529c9e68d9Seric } 4539c9e68d9Seric # endif /* QUEUE */ 4549c9e68d9Seric (void) deliver(e, q); 4559c9e68d9Seric } 4569c9e68d9Seric } 4579c9e68d9Seric Verbose = oldverbose; 4589c9e68d9Seric 459fdc75a0fSeric #ifdef XDEBUG 460fdc75a0fSeric checkfd012("end of sendenvelope"); 461fdc75a0fSeric #endif 462fdc75a0fSeric 4639c9e68d9Seric if (mode == SM_FORK) 4649c9e68d9Seric finis(); 4659c9e68d9Seric } 4669c9e68d9Seric /* 4679c9e68d9Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 4689c9e68d9Seric ** 4699c9e68d9Seric ** This MUST be a macro, since after a vfork we are running 4709c9e68d9Seric ** two processes on the same stack!!! 4719c9e68d9Seric ** 4729c9e68d9Seric ** Parameters: 4739c9e68d9Seric ** none. 4749c9e68d9Seric ** 4759c9e68d9Seric ** Returns: 4769c9e68d9Seric ** From a macro??? You've got to be kidding! 4779c9e68d9Seric ** 4789c9e68d9Seric ** Side Effects: 4799c9e68d9Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 4809c9e68d9Seric ** pid of child in parent, zero in child. 4819c9e68d9Seric ** -1 on unrecoverable error. 4829c9e68d9Seric ** 4839c9e68d9Seric ** Notes: 4849c9e68d9Seric ** I'm awfully sorry this looks so awful. That's 4859c9e68d9Seric ** vfork for you..... 4869c9e68d9Seric */ 4879c9e68d9Seric 4889c9e68d9Seric # define NFORKTRIES 5 4899c9e68d9Seric 4909c9e68d9Seric # ifndef FORK 4919c9e68d9Seric # define FORK fork 4929c9e68d9Seric # endif 4939c9e68d9Seric 4949c9e68d9Seric # define DOFORK(fORKfN) \ 4959c9e68d9Seric {\ 4969c9e68d9Seric register int i;\ 4979c9e68d9Seric \ 4989c9e68d9Seric for (i = NFORKTRIES; --i >= 0; )\ 4999c9e68d9Seric {\ 5009c9e68d9Seric pid = fORKfN();\ 5019c9e68d9Seric if (pid >= 0)\ 5029c9e68d9Seric break;\ 5039c9e68d9Seric if (i > 0)\ 5049c9e68d9Seric sleep((unsigned) NFORKTRIES - i);\ 5059c9e68d9Seric }\ 5069c9e68d9Seric } 5079c9e68d9Seric /* 5089c9e68d9Seric ** DOFORK -- simple fork interface to DOFORK. 5099c9e68d9Seric ** 5109c9e68d9Seric ** Parameters: 5119c9e68d9Seric ** none. 5129c9e68d9Seric ** 5139c9e68d9Seric ** Returns: 5149c9e68d9Seric ** pid of child in parent. 5159c9e68d9Seric ** zero in child. 5169c9e68d9Seric ** -1 on error. 5179c9e68d9Seric ** 5189c9e68d9Seric ** Side Effects: 5199c9e68d9Seric ** returns twice, once in parent and once in child. 5209c9e68d9Seric */ 5219c9e68d9Seric 5229c9e68d9Seric dofork() 5239c9e68d9Seric { 5249c9e68d9Seric register int pid; 5259c9e68d9Seric 5269c9e68d9Seric DOFORK(fork); 5279c9e68d9Seric return (pid); 5289c9e68d9Seric } 5299c9e68d9Seric /* 53013bbc08cSeric ** DELIVER -- Deliver a message to a list of addresses. 53113bbc08cSeric ** 53213bbc08cSeric ** This routine delivers to everyone on the same host as the 53313bbc08cSeric ** user on the head of the list. It is clever about mailers 53413bbc08cSeric ** that don't handle multiple users. It is NOT guaranteed 53513bbc08cSeric ** that it will deliver to all these addresses however -- so 53613bbc08cSeric ** deliver should be called once for each address on the 53713bbc08cSeric ** list. 53825a99e2eSeric ** 53925a99e2eSeric ** Parameters: 540588cad61Seric ** e -- the envelope to deliver. 541c77d1c25Seric ** firstto -- head of the address list to deliver to. 54225a99e2eSeric ** 54325a99e2eSeric ** Returns: 54425a99e2eSeric ** zero -- successfully delivered. 54525a99e2eSeric ** else -- some failure, see ExitStat for more info. 54625a99e2eSeric ** 54725a99e2eSeric ** Side Effects: 54825a99e2eSeric ** The standard input is passed off to someone. 54925a99e2eSeric */ 55025a99e2eSeric 551588cad61Seric deliver(e, firstto) 552588cad61Seric register ENVELOPE *e; 553c77d1c25Seric ADDRESS *firstto; 55425a99e2eSeric { 55578442df3Seric char *host; /* host being sent to */ 55678442df3Seric char *user; /* user being sent to */ 55725a99e2eSeric char **pvp; 5585dfc646bSeric register char **mvp; 55925a99e2eSeric register char *p; 560588cad61Seric register MAILER *m; /* mailer for this recipient */ 5616259796dSeric ADDRESS *ctladdr; 562b31e7f2bSeric register MCI *mci; 563c77d1c25Seric register ADDRESS *to = firstto; 564c579ef51Seric bool clever = FALSE; /* running user smtp to this mailer */ 565772e6e50Seric ADDRESS *tochain = NULL; /* chain of users in this mailer call */ 566911693bfSbostic int rcode; /* response code */ 567e103b48fSeric char *firstsig; /* signature of firstto */ 5689c9e68d9Seric int pid; 5699c9e68d9Seric char *curhost; 5709c9e68d9Seric int mpvect[2]; 5719c9e68d9Seric int rpvect[2]; 572ee6bf8dfSeric char *pv[MAXPV+1]; 573579ef0ddSeric char tobuf[TOBUFSIZE]; /* text line of to people */ 574ee6bf8dfSeric char buf[MAXNAME]; 575c23ed322Seric char rpathbuf[MAXNAME]; /* translated return path */ 576fabb3bd4Seric extern int checkcompat(); 57725a99e2eSeric 57835490626Seric errno = 0; 579ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags)) 5805dfc646bSeric return (0); 58125a99e2eSeric 582134746fbSeric #ifdef NAMED_BIND 583912a731aSbostic /* unless interactive, try twice, over a minute */ 5848d19a23dSeric if (OpMode == MD_DAEMON || OpMode == MD_SMTP) 5858d19a23dSeric { 586912a731aSbostic _res.retrans = 30; 587912a731aSbostic _res.retry = 2; 588912a731aSbostic } 589d4bd8f0eSbostic #endif 590912a731aSbostic 59151552439Seric m = to->q_mailer; 59251552439Seric host = to->q_host; 593c9be6216Seric CurEnv = e; /* just in case */ 5944384d521Seric e->e_statmsg = NULL; 595df106f0bSeric SmtpError[0] = '\0'; 59651552439Seric 5976ef48975Seric if (tTd(10, 1)) 5985dfc646bSeric printf("\n--deliver, mailer=%d, host=`%s', first user=`%s'\n", 59951552439Seric m->m_mno, host, to->q_user); 600ab81ee53Seric if (tTd(10, 100)) 601ab81ee53Seric printopenfds(FALSE); 602f3dbc832Seric 603f3dbc832Seric /* 604f3dbc832Seric ** If this mailer is expensive, and if we don't want to make 605f3dbc832Seric ** connections now, just mark these addresses and return. 606f3dbc832Seric ** This is useful if we want to batch connections to 607f3dbc832Seric ** reduce load. This will cause the messages to be 608f3dbc832Seric ** queued up, and a daemon will come along to send the 609f3dbc832Seric ** messages later. 610f3dbc832Seric ** This should be on a per-mailer basis. 611f3dbc832Seric */ 612f3dbc832Seric 61379aa5155Seric if (NoConnect && bitnset(M_EXPENSIVE, m->m_flags) && !Verbose) 614f3dbc832Seric { 615f3dbc832Seric for (; to != NULL; to = to->q_next) 616f4560e80Seric { 617ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 618c6e18ac5Seric to->q_mailer != m) 619f4560e80Seric continue; 620268a25e1Seric to->q_flags |= QQUEUEUP; 621588cad61Seric e->e_to = to->q_paddr; 62208b25121Seric message("queued"); 6232f624c86Seric if (LogLevel > 8) 6244dee0003Seric logdelivery(m, NULL, "queued", NULL, e); 625f4560e80Seric } 626588cad61Seric e->e_to = NULL; 627f3dbc832Seric return (0); 628f3dbc832Seric } 629f3dbc832Seric 63025a99e2eSeric /* 6315dfc646bSeric ** Do initial argv setup. 6325dfc646bSeric ** Insert the mailer name. Notice that $x expansion is 6335dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 6345dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 6355dfc646bSeric ** code does not check for 'pv' overflow; this places a 6365dfc646bSeric ** manifest lower limit of 4 for MAXPV. 6373bea8136Seric ** The from address rewrite is expected to make 6383bea8136Seric ** the address relative to the other end. 6395dfc646bSeric */ 6405dfc646bSeric 64178442df3Seric /* rewrite from address, using rewriting rules */ 642efe54562Seric rcode = EX_OK; 643efe54562Seric (void) strcpy(rpathbuf, remotename(e->e_from.q_paddr, m, 644efe54562Seric RF_SENDERADDR|RF_CANONICAL, 645efe54562Seric &rcode, e)); 646ee4b0922Seric define('g', rpathbuf, e); /* translated return path */ 647588cad61Seric define('h', host, e); /* to host */ 6485dfc646bSeric Errors = 0; 6495dfc646bSeric pvp = pv; 6505dfc646bSeric *pvp++ = m->m_argv[0]; 6515dfc646bSeric 6525dfc646bSeric /* insert -f or -r flag as appropriate */ 65357fc6f17Seric if (FromFlag && (bitnset(M_FOPT, m->m_flags) || bitnset(M_ROPT, m->m_flags))) 6545dfc646bSeric { 65557fc6f17Seric if (bitnset(M_FOPT, m->m_flags)) 6565dfc646bSeric *pvp++ = "-f"; 6575dfc646bSeric else 6585dfc646bSeric *pvp++ = "-r"; 659c23ed322Seric *pvp++ = newstr(rpathbuf); 6605dfc646bSeric } 6615dfc646bSeric 6625dfc646bSeric /* 6635dfc646bSeric ** Append the other fixed parts of the argv. These run 6645dfc646bSeric ** up to the first entry containing "$u". There can only 6655dfc646bSeric ** be one of these, and there are only a few more slots 6665dfc646bSeric ** in the pv after it. 6675dfc646bSeric */ 6685dfc646bSeric 6695dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 6705dfc646bSeric { 6712bc47524Seric /* can't use strchr here because of sign extension problems */ 6722bc47524Seric while (*p != '\0') 6732bc47524Seric { 6742bc47524Seric if ((*p++ & 0377) == MACROEXPAND) 6752bc47524Seric { 6762bc47524Seric if (*p == 'u') 6775dfc646bSeric break; 6782bc47524Seric } 6792bc47524Seric } 6802bc47524Seric 6812bc47524Seric if (*p != '\0') 6825dfc646bSeric break; 6835dfc646bSeric 6845dfc646bSeric /* this entry is safe -- go ahead and process it */ 685588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 6865dfc646bSeric *pvp++ = newstr(buf); 6875dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 6885dfc646bSeric { 68908b25121Seric syserr("554 Too many parameters to %s before $u", pv[0]); 6905dfc646bSeric return (-1); 6915dfc646bSeric } 6925dfc646bSeric } 693c579ef51Seric 69433db8731Seric /* 69533db8731Seric ** If we have no substitution for the user name in the argument 69633db8731Seric ** list, we know that we must supply the names otherwise -- and 69733db8731Seric ** SMTP is the answer!! 69833db8731Seric */ 69933db8731Seric 7005dfc646bSeric if (*mvp == NULL) 701c579ef51Seric { 702c579ef51Seric /* running SMTP */ 7032c7e1b8dSeric # ifdef SMTP 704c579ef51Seric clever = TRUE; 705c579ef51Seric *pvp = NULL; 7066c2c3107Seric # else /* SMTP */ 70733db8731Seric /* oops! we don't implement SMTP */ 708df106f0bSeric syserr("554 SMTP style mailer not implemented"); 7092c7e1b8dSeric return (EX_SOFTWARE); 7106c2c3107Seric # endif /* SMTP */ 711c579ef51Seric } 7125dfc646bSeric 7135dfc646bSeric /* 7145dfc646bSeric ** At this point *mvp points to the argument with $u. We 7155dfc646bSeric ** run through our address list and append all the addresses 7165dfc646bSeric ** we can. If we run out of space, do not fret! We can 7175dfc646bSeric ** always send another copy later. 7185dfc646bSeric */ 7195dfc646bSeric 7205dfc646bSeric tobuf[0] = '\0'; 721588cad61Seric e->e_to = tobuf; 7226259796dSeric ctladdr = NULL; 723e103b48fSeric firstsig = hostsignature(firstto->q_mailer, firstto->q_host, e); 7245dfc646bSeric for (; to != NULL; to = to->q_next) 7255dfc646bSeric { 7265dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 72757fc6f17Seric if (tobuf[0] != '\0' && !bitnset(M_MUSER, m->m_flags)) 7285dfc646bSeric break; 7295dfc646bSeric 7305dfc646bSeric /* if already sent or not for this host, don't send */ 731ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 732e103b48fSeric to->q_mailer != firstto->q_mailer || 733e103b48fSeric strcmp(hostsignature(to->q_mailer, to->q_host, e), firstsig) != 0) 7345dfc646bSeric continue; 7356259796dSeric 7364b22ea87Seric /* avoid overflowing tobuf */ 737aa50a568Sbostic if (sizeof tobuf < (strlen(to->q_paddr) + strlen(tobuf) + 2)) 7384b22ea87Seric break; 7394b22ea87Seric 7406ef48975Seric if (tTd(10, 1)) 741772e6e50Seric { 742772e6e50Seric printf("\nsend to "); 743772e6e50Seric printaddr(to, FALSE); 744772e6e50Seric } 745772e6e50Seric 7466259796dSeric /* compute effective uid/gid when sending */ 747960e665aSeric /* XXX perhaps this should be to->q_mailer != LocalMailer ?? */ 748960e665aSeric /* XXX perhaps it should be a mailer flag? */ 749960e665aSeric if (to->q_mailer == ProgMailer || to->q_mailer == FileMailer) 7506259796dSeric ctladdr = getctladdr(to); 7516259796dSeric 7525dfc646bSeric user = to->q_user; 753588cad61Seric e->e_to = to->q_paddr; 75475f1ade9Seric if (tTd(10, 5)) 75575f1ade9Seric { 75675f1ade9Seric printf("deliver: QDONTSEND "); 75775f1ade9Seric printaddr(to, FALSE); 75875f1ade9Seric } 759ee4b0922Seric to->q_flags |= QDONTSEND; 7605dfc646bSeric 7615dfc646bSeric /* 7625dfc646bSeric ** Check to see that these people are allowed to 7635dfc646bSeric ** talk to each other. 7642a6e0786Seric */ 7652a6e0786Seric 76669582d2fSeric if (m->m_maxsize != 0 && e->e_msgsize > m->m_maxsize) 76769582d2fSeric { 76869582d2fSeric NoReturn = TRUE; 76908b25121Seric usrerr("552 Message is too large; %ld bytes max", m->m_maxsize); 7704dee0003Seric giveresponse(EX_UNAVAILABLE, m, NULL, ctladdr, e); 77169582d2fSeric continue; 77269582d2fSeric } 773fabb3bd4Seric rcode = checkcompat(to, e); 7741793c9c5Seric if (rcode != EX_OK) 7755dfc646bSeric { 7761000c37aSeric markfailure(e, to, rcode); 7774dee0003Seric giveresponse(rcode, m, NULL, ctladdr, e); 7785dfc646bSeric continue; 7795dfc646bSeric } 7802a6e0786Seric 7812a6e0786Seric /* 7829ec9501bSeric ** Strip quote bits from names if the mailer is dumb 7839ec9501bSeric ** about them. 78425a99e2eSeric */ 78525a99e2eSeric 78657fc6f17Seric if (bitnset(M_STRIPQ, m->m_flags)) 78725a99e2eSeric { 7881d8f1806Seric stripquotes(user); 7891d8f1806Seric stripquotes(host); 79025a99e2eSeric } 79125a99e2eSeric 792cdb828c5Seric /* hack attack -- delivermail compatibility */ 793cdb828c5Seric if (m == ProgMailer && *user == '|') 794cdb828c5Seric user++; 795cdb828c5Seric 79625a99e2eSeric /* 7973efaed6eSeric ** If an error message has already been given, don't 7983efaed6eSeric ** bother to send to this address. 7993efaed6eSeric ** 8003efaed6eSeric ** >>>>>>>>>> This clause assumes that the local mailer 8013efaed6eSeric ** >> NOTE >> cannot do any further aliasing; that 8023efaed6eSeric ** >>>>>>>>>> function is subsumed by sendmail. 8033efaed6eSeric */ 8043efaed6eSeric 8056cae517dSeric if (bitset(QBADADDR|QQUEUEUP, to->q_flags)) 8063efaed6eSeric continue; 8073efaed6eSeric 808f2fec898Seric /* save statistics.... */ 809588cad61Seric markstats(e, to); 810f2fec898Seric 8113efaed6eSeric /* 81225a99e2eSeric ** See if this user name is "special". 81325a99e2eSeric ** If the user name has a slash in it, assume that this 81451552439Seric ** is a file -- send it off without further ado. Note 81551552439Seric ** that this type of addresses is not processed along 81651552439Seric ** with the others, so we fudge on the To person. 81725a99e2eSeric */ 81825a99e2eSeric 8192c017f8dSeric if (m == FileMailer) 82025a99e2eSeric { 82103463a75Seric rcode = mailfile(user, ctladdr, e); 82203463a75Seric giveresponse(rcode, m, NULL, ctladdr, e); 823dde5acadSeric if (rcode == EX_OK) 824dde5acadSeric to->q_flags |= QSENT; 8255dfc646bSeric continue; 82625a99e2eSeric } 82725a99e2eSeric 82813bbc08cSeric /* 82913bbc08cSeric ** Address is verified -- add this user to mailer 83013bbc08cSeric ** argv, and add it to the print list of recipients. 83113bbc08cSeric */ 83213bbc08cSeric 833508daeccSeric /* link together the chain of recipients */ 834508daeccSeric to->q_tchain = tochain; 835508daeccSeric tochain = to; 836508daeccSeric 8375dfc646bSeric /* create list of users for error messages */ 838db8841e9Seric (void) strcat(tobuf, ","); 839db8841e9Seric (void) strcat(tobuf, to->q_paddr); 840588cad61Seric define('u', user, e); /* to user */ 841b6f89e6eSeric p = to->q_home; 842b6f89e6eSeric if (p == NULL && ctladdr != NULL) 843b6f89e6eSeric p = ctladdr->q_home; 844b6f89e6eSeric define('z', p, e); /* user's home */ 8455dfc646bSeric 846c579ef51Seric /* 847508daeccSeric ** Expand out this user into argument list. 848c579ef51Seric */ 849c579ef51Seric 850508daeccSeric if (!clever) 851c579ef51Seric { 852588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8535dfc646bSeric *pvp++ = newstr(buf); 8545dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 8555dfc646bSeric { 8565dfc646bSeric /* allow some space for trailing parms */ 8575dfc646bSeric break; 8585dfc646bSeric } 8595dfc646bSeric } 860c579ef51Seric } 8615dfc646bSeric 862145b49b1Seric /* see if any addresses still exist */ 863145b49b1Seric if (tobuf[0] == '\0') 864c579ef51Seric { 865588cad61Seric define('g', (char *) NULL, e); 866145b49b1Seric return (0); 867c579ef51Seric } 868145b49b1Seric 8695dfc646bSeric /* print out messages as full list */ 87063780dbdSeric e->e_to = tobuf + 1; 8715dfc646bSeric 8725dfc646bSeric /* 8735dfc646bSeric ** Fill out any parameters after the $u parameter. 8745dfc646bSeric */ 8755dfc646bSeric 876c579ef51Seric while (!clever && *++mvp != NULL) 8775dfc646bSeric { 878588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8795dfc646bSeric *pvp++ = newstr(buf); 8805dfc646bSeric if (pvp >= &pv[MAXPV]) 88108b25121Seric syserr("554 deliver: pv overflow after $u for %s", pv[0]); 8825dfc646bSeric } 8835dfc646bSeric *pvp++ = NULL; 8845dfc646bSeric 88525a99e2eSeric /* 88625a99e2eSeric ** Call the mailer. 8876328bdf7Seric ** The argument vector gets built, pipes 88825a99e2eSeric ** are created as necessary, and we fork & exec as 8896328bdf7Seric ** appropriate. 890c579ef51Seric ** If we are running SMTP, we just need to clean up. 89125a99e2eSeric */ 89225a99e2eSeric 893960e665aSeric /*XXX this seems a bit wierd */ 8944899f6b5Seric if (ctladdr == NULL && m != ProgMailer && 8954899f6b5Seric bitset(QGOODUID, e->e_from.q_flags)) 896960e665aSeric ctladdr = &e->e_from; 897960e665aSeric 898134746fbSeric #ifdef NAMED_BIND 8992bcc6d2dSeric if (ConfigLevel < 2) 900912a731aSbostic _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 901134746fbSeric #endif 9029c9e68d9Seric 9039c9e68d9Seric if (tTd(11, 1)) 904134746fbSeric { 9059c9e68d9Seric printf("openmailer:"); 9069c9e68d9Seric printav(pv); 9079c9e68d9Seric } 9089c9e68d9Seric errno = 0; 9099c9e68d9Seric 9109c9e68d9Seric CurHostName = m->m_mailer; 9119c9e68d9Seric 9129c9e68d9Seric /* 9139c9e68d9Seric ** Deal with the special case of mail handled through an IPC 9149c9e68d9Seric ** connection. 9159c9e68d9Seric ** In this case we don't actually fork. We must be 9169c9e68d9Seric ** running SMTP for this to work. We will return a 9179c9e68d9Seric ** zero pid to indicate that we are running IPC. 9189c9e68d9Seric ** We also handle a debug version that just talks to stdin/out. 9199c9e68d9Seric */ 9209c9e68d9Seric 9219c9e68d9Seric curhost = NULL; 922c931b82bSeric SmtpPhase = NULL; 923df106f0bSeric mci = NULL; 9249c9e68d9Seric 9257febfd66Seric #ifdef XDEBUG 9267febfd66Seric { 9277febfd66Seric char wbuf[MAXLINE]; 9287febfd66Seric 9297febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 9307febfd66Seric sprintf(wbuf, "%s... openmailer(%s)", e->e_to, m->m_name); 9317febfd66Seric checkfd012(wbuf); 9327febfd66Seric } 9337febfd66Seric #endif 9347febfd66Seric 9359c9e68d9Seric /* check for Local Person Communication -- not for mortals!!! */ 9369c9e68d9Seric if (strcmp(m->m_mailer, "[LPC]") == 0) 9379c9e68d9Seric { 9389c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 9399c9e68d9Seric bzero((char *) mci, sizeof *mci); 9409c9e68d9Seric mci->mci_in = stdin; 9419c9e68d9Seric mci->mci_out = stdout; 9429c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 9439c9e68d9Seric mci->mci_mailer = m; 9449c9e68d9Seric } 9459c9e68d9Seric else if (strcmp(m->m_mailer, "[IPC]") == 0 || 9469c9e68d9Seric strcmp(m->m_mailer, "[TCP]") == 0) 9479c9e68d9Seric { 9489c9e68d9Seric #ifdef DAEMON 9499c9e68d9Seric register int i; 9509c9e68d9Seric register u_short port; 9519c9e68d9Seric 952a5d44642Seric if (pv[0] == NULL || pv[1] == NULL || pv[1][0] == '\0') 953a5d44642Seric { 954a5d44642Seric syserr("null host name for %s mailer", m->m_mailer); 955a5d44642Seric rcode = EX_CONFIG; 956a5d44642Seric goto give_up; 957a5d44642Seric } 958a5d44642Seric 9599c9e68d9Seric CurHostName = pv[1]; 9609c9e68d9Seric curhost = hostsignature(m, pv[1], e); 9619c9e68d9Seric 9629c9e68d9Seric if (curhost == NULL || curhost[0] == '\0') 9639c9e68d9Seric { 964a5d44642Seric syserr("null host signature for %s", pv[1]); 965845e533cSeric rcode = EX_OSERR; 966b31e7f2bSeric goto give_up; 967b31e7f2bSeric } 9689c9e68d9Seric 9699c9e68d9Seric if (!clever) 9709c9e68d9Seric { 9719c9e68d9Seric syserr("554 non-clever IPC"); 972df106f0bSeric rcode = EX_CONFIG; 9739c9e68d9Seric goto give_up; 9749c9e68d9Seric } 9759c9e68d9Seric if (pv[2] != NULL) 9769c9e68d9Seric port = atoi(pv[2]); 9779c9e68d9Seric else 9789c9e68d9Seric port = 0; 9799c9e68d9Seric tryhost: 9809c9e68d9Seric while (*curhost != '\0') 9819c9e68d9Seric { 9829c9e68d9Seric register char *p; 9839c9e68d9Seric static char hostbuf[MAXNAME]; 9849c9e68d9Seric 9859c9e68d9Seric /* pull the next host from the signature */ 9869c9e68d9Seric p = strchr(curhost, ':'); 9879c9e68d9Seric if (p == NULL) 9889c9e68d9Seric p = &curhost[strlen(curhost)]; 989df106f0bSeric if (p == curhost) 990df106f0bSeric { 991df106f0bSeric syserr("deliver: null host name in signature"); 9928087428aSeric curhost++; 993df106f0bSeric continue; 994df106f0bSeric } 9959c9e68d9Seric strncpy(hostbuf, curhost, p - curhost); 9969c9e68d9Seric hostbuf[p - curhost] = '\0'; 9979c9e68d9Seric if (*p != '\0') 9989c9e68d9Seric p++; 9999c9e68d9Seric curhost = p; 10009c9e68d9Seric 10019c9e68d9Seric /* see if we already know that this host is fried */ 10029c9e68d9Seric CurHostName = hostbuf; 10039c9e68d9Seric mci = mci_get(hostbuf, m); 10049c9e68d9Seric if (mci->mci_state != MCIS_CLOSED) 10059c9e68d9Seric { 10069c9e68d9Seric if (tTd(11, 1)) 10079c9e68d9Seric { 10089c9e68d9Seric printf("openmailer: "); 10094052916eSeric mci_dump(mci, FALSE); 10109c9e68d9Seric } 10119c9e68d9Seric CurHostName = mci->mci_host; 10129c9e68d9Seric break; 10139c9e68d9Seric } 10149c9e68d9Seric mci->mci_mailer = m; 10159c9e68d9Seric if (mci->mci_exitstat != EX_OK) 10169c9e68d9Seric continue; 10179c9e68d9Seric 10189c9e68d9Seric /* try the connection */ 10199c9e68d9Seric setproctitle("%s %s: %s", e->e_id, hostbuf, "user open"); 10209c9e68d9Seric message("Connecting to %s (%s)...", 10219c9e68d9Seric hostbuf, m->m_name); 10229c9e68d9Seric i = makeconnection(hostbuf, port, mci, 10239c9e68d9Seric bitnset(M_SECURE_PORT, m->m_flags)); 10249c9e68d9Seric mci->mci_exitstat = i; 10259c9e68d9Seric mci->mci_errno = errno; 1026f170942cSeric #ifdef NAMED_BIND 1027f170942cSeric mci->mci_herrno = h_errno; 1028f170942cSeric #endif 10299c9e68d9Seric if (i == EX_OK) 10309c9e68d9Seric { 10319c9e68d9Seric mci->mci_state = MCIS_OPENING; 10329c9e68d9Seric mci_cache(mci); 1033f170942cSeric if (TrafficLogFile != NULL) 1034f170942cSeric fprintf(TrafficLogFile, "%05d == CONNECT %s\n", 1035f170942cSeric getpid(), hostbuf); 10369c9e68d9Seric break; 10379c9e68d9Seric } 10389c9e68d9Seric else if (tTd(11, 1)) 10399c9e68d9Seric printf("openmailer: makeconnection => stat=%d, errno=%d\n", 10409c9e68d9Seric i, errno); 10419c9e68d9Seric 10429c9e68d9Seric /* enter status of this host */ 10439c9e68d9Seric setstat(i); 1044df106f0bSeric 1045df106f0bSeric /* should print some message here for -v mode */ 1046df106f0bSeric } 1047df106f0bSeric if (mci == NULL) 1048df106f0bSeric { 1049df106f0bSeric syserr("deliver: no host name"); 1050df106f0bSeric rcode = EX_OSERR; 1051df106f0bSeric goto give_up; 10529c9e68d9Seric } 10539c9e68d9Seric mci->mci_pid = 0; 10549c9e68d9Seric #else /* no DAEMON */ 10559c9e68d9Seric syserr("554 openmailer: no IPC"); 10569c9e68d9Seric if (tTd(11, 1)) 10579c9e68d9Seric printf("openmailer: NULL\n"); 1058df106f0bSeric rcode = EX_UNAVAILABLE; 1059df106f0bSeric goto give_up; 10609c9e68d9Seric #endif /* DAEMON */ 10619c9e68d9Seric } 10629c9e68d9Seric else 10639c9e68d9Seric { 1064f170942cSeric if (TrafficLogFile != NULL) 10650e3bfef5Seric { 1066f170942cSeric char **av; 1067f170942cSeric 1068f170942cSeric fprintf(TrafficLogFile, "%05d === EXEC", getpid()); 1069f170942cSeric for (av = pv; *av != NULL; av++) 1070f170942cSeric fprintf(TrafficLogFile, " %s", *av); 1071f170942cSeric fprintf(TrafficLogFile, "\n"); 10726fe8c3bcSeric } 10736fe8c3bcSeric 10749c9e68d9Seric /* create a pipe to shove the mail through */ 10759c9e68d9Seric if (pipe(mpvect) < 0) 10769c9e68d9Seric { 10770e3bfef5Seric syserr("%s... openmailer(%s): pipe (to mailer)", 10780e3bfef5Seric e->e_to, m->m_name); 10799c9e68d9Seric if (tTd(11, 1)) 10809c9e68d9Seric printf("openmailer: NULL\n"); 10819c9e68d9Seric rcode = EX_OSERR; 10829c9e68d9Seric goto give_up; 10839c9e68d9Seric } 10849c9e68d9Seric 10859c9e68d9Seric /* if this mailer speaks smtp, create a return pipe */ 10869c9e68d9Seric if (clever && pipe(rpvect) < 0) 10879c9e68d9Seric { 10880e3bfef5Seric syserr("%s... openmailer(%s): pipe (from mailer)", 10890e3bfef5Seric e->e_to, m->m_name); 10909c9e68d9Seric (void) close(mpvect[0]); 10919c9e68d9Seric (void) close(mpvect[1]); 10929c9e68d9Seric if (tTd(11, 1)) 10939c9e68d9Seric printf("openmailer: NULL\n"); 10949c9e68d9Seric rcode = EX_OSERR; 10959c9e68d9Seric goto give_up; 10969c9e68d9Seric } 10979c9e68d9Seric 10989c9e68d9Seric /* 10999c9e68d9Seric ** Actually fork the mailer process. 11009c9e68d9Seric ** DOFORK is clever about retrying. 11019c9e68d9Seric ** 11029c9e68d9Seric ** Dispose of SIGCHLD signal catchers that may be laying 11039c9e68d9Seric ** around so that endmail will get it. 11049c9e68d9Seric */ 11059c9e68d9Seric 11069c9e68d9Seric if (e->e_xfp != NULL) 11079c9e68d9Seric (void) fflush(e->e_xfp); /* for debugging */ 11089c9e68d9Seric (void) fflush(stdout); 11099c9e68d9Seric # ifdef SIGCHLD 11102b9178d3Seric (void) setsignal(SIGCHLD, SIG_DFL); 11119c9e68d9Seric # endif /* SIGCHLD */ 11129c9e68d9Seric DOFORK(FORK); 11139c9e68d9Seric /* pid is set by DOFORK */ 11149c9e68d9Seric if (pid < 0) 11159c9e68d9Seric { 11169c9e68d9Seric /* failure */ 11170e3bfef5Seric syserr("%s... openmailer(%s): cannot fork", 11180e3bfef5Seric e->e_to, m->m_name); 11199c9e68d9Seric (void) close(mpvect[0]); 11209c9e68d9Seric (void) close(mpvect[1]); 11219c9e68d9Seric if (clever) 11229c9e68d9Seric { 11239c9e68d9Seric (void) close(rpvect[0]); 11249c9e68d9Seric (void) close(rpvect[1]); 11259c9e68d9Seric } 11269c9e68d9Seric if (tTd(11, 1)) 11279c9e68d9Seric printf("openmailer: NULL\n"); 11289c9e68d9Seric rcode = EX_OSERR; 11299c9e68d9Seric goto give_up; 11309c9e68d9Seric } 11319c9e68d9Seric else if (pid == 0) 11329c9e68d9Seric { 11339c9e68d9Seric int i; 11349c9e68d9Seric int saveerrno; 11359c9e68d9Seric char **ep; 11369c9e68d9Seric char *env[MAXUSERENVIRON]; 11379c9e68d9Seric extern char **environ; 11389c9e68d9Seric extern int DtableSize; 11399c9e68d9Seric 11409c9e68d9Seric /* child -- set up input & exec mailer */ 11412b9178d3Seric (void) setsignal(SIGINT, SIG_IGN); 11422b9178d3Seric (void) setsignal(SIGHUP, SIG_IGN); 11432b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 11449c9e68d9Seric 114544f2317fSeric /* reset user and group */ 114644f2317fSeric if (!bitnset(M_RESTR, m->m_flags)) 114744f2317fSeric { 114844f2317fSeric if (ctladdr == NULL || ctladdr->q_uid == 0) 114944f2317fSeric { 115044f2317fSeric (void) initgroups(DefUser, DefGid); 1151fc354902Seric (void) setgid(DefGid); 115244f2317fSeric (void) setuid(DefUid); 115344f2317fSeric } 115444f2317fSeric else 115544f2317fSeric { 115644f2317fSeric (void) initgroups(ctladdr->q_ruser? 115744f2317fSeric ctladdr->q_ruser: ctladdr->q_user, 115844f2317fSeric ctladdr->q_gid); 115951cfe111Seric (void) setgid(ctladdr->q_gid); 116044f2317fSeric (void) setuid(ctladdr->q_uid); 116144f2317fSeric } 116244f2317fSeric } 116344f2317fSeric 116444f2317fSeric if (tTd(11, 2)) 116544f2317fSeric printf("openmailer: running as r/euid=%d/%d\n", 116644f2317fSeric getuid(), geteuid()); 116744f2317fSeric 1168b986f6aaSeric /* move into some "safe" directory */ 1169b986f6aaSeric if (m->m_execdir != NULL) 1170b986f6aaSeric { 1171b986f6aaSeric char *p, *q; 1172b986f6aaSeric char buf[MAXLINE]; 1173b986f6aaSeric 1174b986f6aaSeric for (p = m->m_execdir; p != NULL; p = q) 1175b986f6aaSeric { 1176b986f6aaSeric q = strchr(p, ':'); 1177b986f6aaSeric if (q != NULL) 1178b986f6aaSeric *q = '\0'; 1179b986f6aaSeric expand(p, buf, &buf[sizeof buf] - 1, e); 1180b986f6aaSeric if (q != NULL) 1181b986f6aaSeric *q++ = ':'; 1182b986f6aaSeric if (tTd(11, 20)) 1183b986f6aaSeric printf("openmailer: trydir %s\n", 1184b986f6aaSeric buf); 1185b986f6aaSeric if (buf[0] != '\0' && chdir(buf) >= 0) 1186b986f6aaSeric break; 1187b986f6aaSeric } 1188b986f6aaSeric } 1189b986f6aaSeric 11909c9e68d9Seric /* arrange to filter std & diag output of command */ 11919c9e68d9Seric if (clever) 11929c9e68d9Seric { 11939c9e68d9Seric (void) close(rpvect[0]); 11946fe8c3bcSeric if (dup2(rpvect[1], STDOUT_FILENO) < 0) 11956fe8c3bcSeric { 11960e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdout", 11970e3bfef5Seric e->e_to, m->m_name, rpvect[1]); 11986fe8c3bcSeric _exit(EX_OSERR); 11996fe8c3bcSeric } 12009c9e68d9Seric (void) close(rpvect[1]); 12019c9e68d9Seric } 12028d19a23dSeric else if (OpMode == MD_SMTP || OpMode == MD_DAEMON || HoldErrs) 12039c9e68d9Seric { 12049c9e68d9Seric /* put mailer output in transcript */ 12056fe8c3bcSeric if (dup2(fileno(e->e_xfp), STDOUT_FILENO) < 0) 12066fe8c3bcSeric { 12070e3bfef5Seric syserr("%s... openmailer(%s): cannot dup xscript %d for stdout", 12080e3bfef5Seric e->e_to, m->m_name, 12096fe8c3bcSeric fileno(e->e_xfp)); 12106fe8c3bcSeric _exit(EX_OSERR); 12119c9e68d9Seric } 12126fe8c3bcSeric } 12136fe8c3bcSeric if (dup2(STDOUT_FILENO, STDERR_FILENO) < 0) 12146fe8c3bcSeric { 12150e3bfef5Seric syserr("%s... openmailer(%s): cannot dup stdout for stderr", 12160e3bfef5Seric e->e_to, m->m_name); 12176fe8c3bcSeric _exit(EX_OSERR); 12186fe8c3bcSeric } 12199c9e68d9Seric 12209c9e68d9Seric /* arrange to get standard input */ 12219c9e68d9Seric (void) close(mpvect[1]); 12229c9e68d9Seric if (dup2(mpvect[0], STDIN_FILENO) < 0) 12239c9e68d9Seric { 12240e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdin", 12250e3bfef5Seric e->e_to, m->m_name, mpvect[0]); 12269c9e68d9Seric _exit(EX_OSERR); 12279c9e68d9Seric } 12289c9e68d9Seric (void) close(mpvect[0]); 12299c9e68d9Seric 12309c9e68d9Seric /* arrange for all the files to be closed */ 12319c9e68d9Seric for (i = 3; i < DtableSize; i++) 12329c9e68d9Seric { 12339c9e68d9Seric register int j; 123444f2317fSeric 12359c9e68d9Seric if ((j = fcntl(i, F_GETFD, 0)) != -1) 12369c9e68d9Seric (void) fcntl(i, F_SETFD, j | 1); 12379c9e68d9Seric } 12389c9e68d9Seric 12399c9e68d9Seric /* set up the mailer environment */ 12409c9e68d9Seric i = 0; 12419c9e68d9Seric env[i++] = "AGENT=sendmail"; 12429c9e68d9Seric for (ep = environ; *ep != NULL; ep++) 12439c9e68d9Seric { 12449c9e68d9Seric if (strncmp(*ep, "TZ=", 3) == 0) 12459c9e68d9Seric env[i++] = *ep; 12469c9e68d9Seric } 12479c9e68d9Seric env[i++] = NULL; 12489c9e68d9Seric 12499c9e68d9Seric /* try to execute the mailer */ 12509c9e68d9Seric execve(m->m_mailer, pv, env); 12519c9e68d9Seric saveerrno = errno; 12529c9e68d9Seric syserr("Cannot exec %s", m->m_mailer); 12537c941fd2Seric if (m == LocalMailer || transienterror(saveerrno)) 12547c941fd2Seric _exit(EX_OSERR); 12559c9e68d9Seric _exit(EX_UNAVAILABLE); 12569c9e68d9Seric } 12579c9e68d9Seric 12589c9e68d9Seric /* 12599c9e68d9Seric ** Set up return value. 12609c9e68d9Seric */ 12619c9e68d9Seric 12629c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 12639c9e68d9Seric bzero((char *) mci, sizeof *mci); 12649c9e68d9Seric mci->mci_mailer = m; 12659c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 12669c9e68d9Seric mci->mci_pid = pid; 12679c9e68d9Seric (void) close(mpvect[0]); 12689c9e68d9Seric mci->mci_out = fdopen(mpvect[1], "w"); 1269335eae58Seric if (mci->mci_out == NULL) 1270335eae58Seric { 1271335eae58Seric syserr("deliver: cannot create mailer output channel, fd=%d", 1272335eae58Seric mpvect[1]); 1273335eae58Seric (void) close(mpvect[1]); 1274335eae58Seric if (clever) 1275335eae58Seric { 1276335eae58Seric (void) close(rpvect[0]); 1277335eae58Seric (void) close(rpvect[1]); 1278335eae58Seric } 1279335eae58Seric rcode = EX_OSERR; 1280335eae58Seric goto give_up; 1281335eae58Seric } 12829c9e68d9Seric if (clever) 12839c9e68d9Seric { 12849c9e68d9Seric (void) close(rpvect[1]); 12859c9e68d9Seric mci->mci_in = fdopen(rpvect[0], "r"); 1286335eae58Seric if (mci->mci_in == NULL) 1287335eae58Seric { 1288335eae58Seric syserr("deliver: cannot create mailer input channel, fd=%d", 1289335eae58Seric mpvect[1]); 1290335eae58Seric (void) close(rpvect[0]); 1291335eae58Seric fclose(mci->mci_out); 1292335eae58Seric mci->mci_out = NULL; 1293335eae58Seric rcode = EX_OSERR; 1294335eae58Seric goto give_up; 1295335eae58Seric } 12969c9e68d9Seric } 12979c9e68d9Seric else 12989c9e68d9Seric { 12999c9e68d9Seric mci->mci_flags |= MCIF_TEMP; 13009c9e68d9Seric mci->mci_in = NULL; 13019c9e68d9Seric } 13029c9e68d9Seric } 13039c9e68d9Seric 13049c9e68d9Seric /* 13059c9e68d9Seric ** If we are in SMTP opening state, send initial protocol. 13069c9e68d9Seric */ 13079c9e68d9Seric 13089c9e68d9Seric if (clever && mci->mci_state != MCIS_CLOSED) 13099c9e68d9Seric { 13109c9e68d9Seric smtpinit(m, mci, e); 13119c9e68d9Seric } 13129c9e68d9Seric if (tTd(11, 1)) 13139c9e68d9Seric { 13149c9e68d9Seric printf("openmailer: "); 13154052916eSeric mci_dump(mci, FALSE); 13169c9e68d9Seric } 13179c9e68d9Seric 13189c9e68d9Seric if (mci->mci_state != MCIS_OPEN) 1319b31e7f2bSeric { 1320b31e7f2bSeric /* couldn't open the mailer */ 1321b31e7f2bSeric rcode = mci->mci_exitstat; 13222a6bc25bSeric errno = mci->mci_errno; 1323f170942cSeric #ifdef NAMED_BIND 1324f170942cSeric h_errno = mci->mci_herrno; 1325f170942cSeric #endif 1326b31e7f2bSeric if (rcode == EX_OK) 1327b31e7f2bSeric { 1328b31e7f2bSeric /* shouldn't happen */ 132908b25121Seric syserr("554 deliver: rcode=%d, mci_state=%d, sig=%s", 13306b0f339dSeric rcode, mci->mci_state, firstsig); 1331b31e7f2bSeric rcode = EX_SOFTWARE; 1332b31e7f2bSeric } 1333cb082c5bSeric else if (rcode == EX_TEMPFAIL && curhost != NULL && *curhost != '\0') 133490891494Seric { 133590891494Seric /* try next MX site */ 133690891494Seric goto tryhost; 133790891494Seric } 1338b31e7f2bSeric } 1339b31e7f2bSeric else if (!clever) 1340b31e7f2bSeric { 1341b31e7f2bSeric /* 1342b31e7f2bSeric ** Format and send message. 1343b31e7f2bSeric */ 134415d084d5Seric 13455aa0f353Seric putfromline(mci, e); 13465aa0f353Seric (*e->e_puthdr)(mci, e); 13475aa0f353Seric putline("\n", mci); 13485aa0f353Seric (*e->e_putbody)(mci, e, NULL); 1349b31e7f2bSeric 1350b31e7f2bSeric /* get the exit status */ 1351c9be6216Seric rcode = endmailer(mci, e, pv); 1352134746fbSeric } 1353134746fbSeric else 1354b31e7f2bSeric #ifdef SMTP 1355134746fbSeric { 1356b31e7f2bSeric /* 1357b31e7f2bSeric ** Send the MAIL FROM: protocol 1358b31e7f2bSeric */ 135915d084d5Seric 1360b31e7f2bSeric rcode = smtpmailfrom(m, mci, e); 1361b31e7f2bSeric if (rcode == EX_OK) 136275889e88Seric { 1363ded0d3daSkarels register char *t = tobuf; 1364ded0d3daSkarels register int i; 1365ded0d3daSkarels 1366588cad61Seric /* send the recipient list */ 136763780dbdSeric tobuf[0] = '\0'; 136875889e88Seric for (to = tochain; to != NULL; to = to->q_tchain) 136975889e88Seric { 137063780dbdSeric e->e_to = to->q_paddr; 137115d084d5Seric if ((i = smtprcpt(to, m, mci, e)) != EX_OK) 137275889e88Seric { 137383b7ddc9Seric markfailure(e, to, i); 13744dee0003Seric giveresponse(i, m, mci, ctladdr, e); 137563780dbdSeric } 137675889e88Seric else 137775889e88Seric { 1378911693bfSbostic *t++ = ','; 1379b31e7f2bSeric for (p = to->q_paddr; *p; *t++ = *p++) 1380b31e7f2bSeric continue; 1381ee39df61Seric *t = '\0'; 1382588cad61Seric } 1383588cad61Seric } 1384588cad61Seric 138563780dbdSeric /* now send the data */ 138663780dbdSeric if (tobuf[0] == '\0') 1387b31e7f2bSeric { 13889c9e68d9Seric rcode = EX_OK; 138963780dbdSeric e->e_to = NULL; 1390b31e7f2bSeric if (bitset(MCIF_CACHED, mci->mci_flags)) 1391b31e7f2bSeric smtprset(m, mci, e); 1392b31e7f2bSeric } 139375889e88Seric else 139475889e88Seric { 139563780dbdSeric e->e_to = tobuf + 1; 139675889e88Seric rcode = smtpdata(m, mci, e); 139763780dbdSeric } 139863780dbdSeric 139963780dbdSeric /* now close the connection */ 1400b31e7f2bSeric if (!bitset(MCIF_CACHED, mci->mci_flags)) 140115d084d5Seric smtpquit(m, mci, e); 140263780dbdSeric } 1403cb082c5bSeric if (rcode != EX_OK && curhost != NULL && *curhost != '\0') 14049c9e68d9Seric { 14059c9e68d9Seric /* try next MX site */ 14069c9e68d9Seric goto tryhost; 14079c9e68d9Seric } 1408c579ef51Seric } 1409b31e7f2bSeric #else /* not SMTP */ 1410a05b3449Sbostic { 141108b25121Seric syserr("554 deliver: need SMTP compiled to use clever mailer"); 1412845e533cSeric rcode = EX_CONFIG; 1413b31e7f2bSeric goto give_up; 1414a05b3449Sbostic } 1415b31e7f2bSeric #endif /* SMTP */ 1416134746fbSeric #ifdef NAMED_BIND 14172bcc6d2dSeric if (ConfigLevel < 2) 1418912a731aSbostic _res.options |= RES_DEFNAMES | RES_DNSRCH; /* XXX */ 1419134746fbSeric #endif 14205dfc646bSeric 1421b31e7f2bSeric /* arrange a return receipt if requested */ 1422df106f0bSeric if (rcode == EX_OK && e->e_receiptto != NULL && 1423df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1424b31e7f2bSeric { 1425b31e7f2bSeric e->e_flags |= EF_SENDRECEIPT; 1426b31e7f2bSeric /* do we want to send back more info? */ 1427b31e7f2bSeric } 1428b31e7f2bSeric 1429c77d1c25Seric /* 143063780dbdSeric ** Do final status disposal. 143163780dbdSeric ** We check for something in tobuf for the SMTP case. 1432c77d1c25Seric ** If we got a temporary failure, arrange to queue the 1433c77d1c25Seric ** addressees. 1434c77d1c25Seric */ 1435c77d1c25Seric 1436b31e7f2bSeric give_up: 143763780dbdSeric if (tobuf[0] != '\0') 14384dee0003Seric giveresponse(rcode, m, mci, ctladdr, e); 1439772e6e50Seric for (to = tochain; to != NULL; to = to->q_tchain) 1440b31e7f2bSeric { 1441dde5acadSeric if (rcode != EX_OK) 144283b7ddc9Seric markfailure(e, to, rcode); 1443dde5acadSeric else 1444655518ecSeric { 1445dde5acadSeric to->q_flags |= QSENT; 1446655518ecSeric e->e_nsent++; 1447df106f0bSeric if (e->e_receiptto != NULL && 1448df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1449df106f0bSeric { 1450df106f0bSeric fprintf(e->e_xfp, "%s... Successfully delivered\n", 1451df106f0bSeric to->q_paddr); 1452df106f0bSeric } 1453655518ecSeric } 1454b31e7f2bSeric } 1455b31e7f2bSeric 1456b31e7f2bSeric /* 1457b31e7f2bSeric ** Restore state and return. 1458b31e7f2bSeric */ 1459c77d1c25Seric 14607febfd66Seric #ifdef XDEBUG 14617febfd66Seric { 14627febfd66Seric char wbuf[MAXLINE]; 14637febfd66Seric 14647febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 146544622ea3Seric sprintf(wbuf, "%s... end of deliver(%s)", 146644622ea3Seric e->e_to == NULL ? "NO-TO-LIST" : e->e_to, 146744622ea3Seric m->m_name); 14687febfd66Seric checkfd012(wbuf); 14697febfd66Seric } 14707febfd66Seric #endif 14717febfd66Seric 147235490626Seric errno = 0; 1473588cad61Seric define('g', (char *) NULL, e); 14745826d9d3Seric return (rcode); 147525a99e2eSeric } 14765dfc646bSeric /* 147783b7ddc9Seric ** MARKFAILURE -- mark a failure on a specific address. 147883b7ddc9Seric ** 147983b7ddc9Seric ** Parameters: 148083b7ddc9Seric ** e -- the envelope we are sending. 148183b7ddc9Seric ** q -- the address to mark. 148283b7ddc9Seric ** rcode -- the code signifying the particular failure. 148383b7ddc9Seric ** 148483b7ddc9Seric ** Returns: 148583b7ddc9Seric ** none. 148683b7ddc9Seric ** 148783b7ddc9Seric ** Side Effects: 148883b7ddc9Seric ** marks the address (and possibly the envelope) with the 148983b7ddc9Seric ** failure so that an error will be returned or 149083b7ddc9Seric ** the message will be queued, as appropriate. 149183b7ddc9Seric */ 149283b7ddc9Seric 149383b7ddc9Seric markfailure(e, q, rcode) 149483b7ddc9Seric register ENVELOPE *e; 149583b7ddc9Seric register ADDRESS *q; 149683b7ddc9Seric int rcode; 149783b7ddc9Seric { 149819c47125Seric char buf[MAXLINE]; 149919c47125Seric 1500d5aafa3cSeric switch (rcode) 1501d5aafa3cSeric { 1502d5aafa3cSeric case EX_OK: 1503d5aafa3cSeric break; 1504d5aafa3cSeric 1505d5aafa3cSeric case EX_TEMPFAIL: 1506d5aafa3cSeric case EX_IOERR: 1507d5aafa3cSeric case EX_OSERR: 150883b7ddc9Seric q->q_flags |= QQUEUEUP; 1509d5aafa3cSeric break; 1510d5aafa3cSeric 1511d5aafa3cSeric default: 1512f170942cSeric q->q_flags |= QBADADDR; 1513d5aafa3cSeric break; 1514d5aafa3cSeric } 151583b7ddc9Seric } 151683b7ddc9Seric /* 1517c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 1518c579ef51Seric ** 1519c579ef51Seric ** We should never get fatal errors (e.g., segmentation 1520c579ef51Seric ** violation), so we report those specially. For other 1521c579ef51Seric ** errors, we choose a status message (into statmsg), 1522c579ef51Seric ** and if it represents an error, we print it. 1523c579ef51Seric ** 1524c579ef51Seric ** Parameters: 1525c579ef51Seric ** pid -- pid of mailer. 1526c9be6216Seric ** e -- the current envelope. 1527c9be6216Seric ** pv -- the parameter vector that invoked the mailer 1528c9be6216Seric ** (for error messages). 1529c579ef51Seric ** 1530c579ef51Seric ** Returns: 1531c579ef51Seric ** exit code of mailer. 1532c579ef51Seric ** 1533c579ef51Seric ** Side Effects: 1534c579ef51Seric ** none. 1535c579ef51Seric */ 1536c579ef51Seric 1537c9be6216Seric endmailer(mci, e, pv) 1538b31e7f2bSeric register MCI *mci; 1539c9be6216Seric register ENVELOPE *e; 1540c9be6216Seric char **pv; 1541c579ef51Seric { 1542588cad61Seric int st; 1543c579ef51Seric 154475889e88Seric /* close any connections */ 154575889e88Seric if (mci->mci_in != NULL) 154676f3d53fSeric (void) xfclose(mci->mci_in, mci->mci_mailer->m_name, "mci_in"); 154775889e88Seric if (mci->mci_out != NULL) 154876f3d53fSeric (void) xfclose(mci->mci_out, mci->mci_mailer->m_name, "mci_out"); 154975889e88Seric mci->mci_in = mci->mci_out = NULL; 155075889e88Seric mci->mci_state = MCIS_CLOSED; 155175889e88Seric 155233db8731Seric /* in the IPC case there is nothing to wait for */ 155375889e88Seric if (mci->mci_pid == 0) 155433db8731Seric return (EX_OK); 155533db8731Seric 155633db8731Seric /* wait for the mailer process to die and collect status */ 155775889e88Seric st = waitfor(mci->mci_pid); 1558588cad61Seric if (st == -1) 155978de67c1Seric { 1560c9be6216Seric syserr("endmailer %s: wait", pv[0]); 1561588cad61Seric return (EX_SOFTWARE); 1562c579ef51Seric } 156333db8731Seric 1564bf9bc890Seric if (WIFEXITED(st)) 1565c579ef51Seric { 1566bf9bc890Seric /* normal death -- return status */ 1567bf9bc890Seric return (WEXITSTATUS(st)); 1568bf9bc890Seric } 1569bf9bc890Seric 1570bf9bc890Seric /* it died a horrid death */ 1571550092c3Seric syserr("451 mailer %s died with signal %o", 1572550092c3Seric mci->mci_mailer->m_name, st); 1573c9be6216Seric 1574c9be6216Seric /* log the arguments */ 15753c930db3Seric if (pv != NULL && e->e_xfp != NULL) 1576c9be6216Seric { 1577c9be6216Seric register char **av; 1578c9be6216Seric 1579c9be6216Seric fprintf(e->e_xfp, "Arguments:"); 1580c9be6216Seric for (av = pv; *av != NULL; av++) 1581c9be6216Seric fprintf(e->e_xfp, " %s", *av); 1582c9be6216Seric fprintf(e->e_xfp, "\n"); 1583c9be6216Seric } 1584c9be6216Seric 15855f73204aSeric ExitStat = EX_TEMPFAIL; 15865f73204aSeric return (EX_TEMPFAIL); 1587c579ef51Seric } 1588c579ef51Seric /* 158925a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 159025a99e2eSeric ** 159125a99e2eSeric ** Parameters: 159225a99e2eSeric ** stat -- the status code from the mailer (high byte 159325a99e2eSeric ** only; core dumps must have been taken care of 159425a99e2eSeric ** already). 159581161401Seric ** m -- the mailer info for this mailer. 159681161401Seric ** mci -- the mailer connection info -- can be NULL if the 159781161401Seric ** response is given before the connection is made. 15984dee0003Seric ** ctladdr -- the controlling address for the recipient 15994dee0003Seric ** address(es). 160081161401Seric ** e -- the current envelope. 160125a99e2eSeric ** 160225a99e2eSeric ** Returns: 1603db8841e9Seric ** none. 160425a99e2eSeric ** 160525a99e2eSeric ** Side Effects: 1606c1f9df2cSeric ** Errors may be incremented. 160725a99e2eSeric ** ExitStat may be set. 160825a99e2eSeric */ 160925a99e2eSeric 16104dee0003Seric giveresponse(stat, m, mci, ctladdr, e) 161125a99e2eSeric int stat; 1612588cad61Seric register MAILER *m; 161381161401Seric register MCI *mci; 16144dee0003Seric ADDRESS *ctladdr; 1615198d9be0Seric ENVELOPE *e; 161625a99e2eSeric { 16179c16475dSeric register const char *statmsg; 161825a99e2eSeric extern char *SysExMsg[]; 161925a99e2eSeric register int i; 1620d4bd8f0eSbostic extern int N_SysEx; 1621198d9be0Seric char buf[MAXLINE]; 162225a99e2eSeric 162313bbc08cSeric /* 162413bbc08cSeric ** Compute status message from code. 162513bbc08cSeric */ 162613bbc08cSeric 162725a99e2eSeric i = stat - EX__BASE; 1628588cad61Seric if (stat == 0) 16296fe8c3bcSeric { 1630588cad61Seric statmsg = "250 Sent"; 1631ce5531bdSeric if (e->e_statmsg != NULL) 16326fe8c3bcSeric { 1633ce5531bdSeric (void) sprintf(buf, "%s (%s)", statmsg, e->e_statmsg); 16346fe8c3bcSeric statmsg = buf; 16356fe8c3bcSeric } 16366fe8c3bcSeric } 1637588cad61Seric else if (i < 0 || i > N_SysEx) 1638588cad61Seric { 1639588cad61Seric (void) sprintf(buf, "554 unknown mailer error %d", stat); 1640588cad61Seric stat = EX_UNAVAILABLE; 1641588cad61Seric statmsg = buf; 1642588cad61Seric } 1643198d9be0Seric else if (stat == EX_TEMPFAIL) 1644198d9be0Seric { 16457d55540cSeric (void) strcpy(buf, SysExMsg[i] + 1); 1646d4bd8f0eSbostic #ifdef NAMED_BIND 1647f28da541Smiriam if (h_errno == TRY_AGAIN) 16484d50702aSeric statmsg = errstring(h_errno+E_DNSBASE); 1649f28da541Smiriam else 1650d4bd8f0eSbostic #endif 1651f28da541Smiriam { 16528557d168Seric if (errno != 0) 1653d87e85f3Seric statmsg = errstring(errno); 1654d87e85f3Seric else 1655d87e85f3Seric { 1656d87e85f3Seric #ifdef SMTP 1657d87e85f3Seric statmsg = SmtpError; 16586c2c3107Seric #else /* SMTP */ 1659d87e85f3Seric statmsg = NULL; 16606c2c3107Seric #endif /* SMTP */ 1661d87e85f3Seric } 1662f28da541Smiriam } 1663d87e85f3Seric if (statmsg != NULL && statmsg[0] != '\0') 1664d87e85f3Seric { 166587c9b3e7Seric (void) strcat(buf, ": "); 1666d87e85f3Seric (void) strcat(buf, statmsg); 16678557d168Seric } 1668198d9be0Seric statmsg = buf; 1669198d9be0Seric } 1670f170942cSeric #ifdef NAMED_BIND 1671f170942cSeric else if (stat == EX_NOHOST && h_errno != 0) 1672f170942cSeric { 16734d50702aSeric statmsg = errstring(h_errno + E_DNSBASE); 1674f170942cSeric (void) sprintf(buf, "%s (%s)", SysExMsg[i], statmsg); 1675f170942cSeric statmsg = buf; 1676f170942cSeric } 1677f170942cSeric #endif 167825a99e2eSeric else 1679d87e85f3Seric { 168025a99e2eSeric statmsg = SysExMsg[i]; 16817d55540cSeric if (*statmsg++ == ':') 16827d55540cSeric { 16837d55540cSeric (void) sprintf(buf, "%s: %s", statmsg, errstring(errno)); 16847d55540cSeric statmsg = buf; 16857d55540cSeric } 1686d87e85f3Seric } 1687588cad61Seric 1688588cad61Seric /* 1689588cad61Seric ** Print the message as appropriate 1690588cad61Seric */ 1691588cad61Seric 1692198d9be0Seric if (stat == EX_OK || stat == EX_TEMPFAIL) 1693df106f0bSeric { 1694df106f0bSeric extern char MsgBuf[]; 1695df106f0bSeric 1696e12d03eeSeric message(&statmsg[4], errstring(errno)); 1697df106f0bSeric if (stat == EX_TEMPFAIL && e->e_xfp != NULL) 1698df106f0bSeric fprintf(e->e_xfp, "%s\n", &MsgBuf[4]); 1699df106f0bSeric } 170025a99e2eSeric else 170125a99e2eSeric { 1702c1f9df2cSeric Errors++; 1703e12d03eeSeric usrerr(statmsg, errstring(errno)); 170425a99e2eSeric } 170525a99e2eSeric 170625a99e2eSeric /* 170725a99e2eSeric ** Final cleanup. 170825a99e2eSeric ** Log a record of the transaction. Compute the new 170925a99e2eSeric ** ExitStat -- if we already had an error, stick with 171025a99e2eSeric ** that. 171125a99e2eSeric */ 171225a99e2eSeric 17132f624c86Seric if (LogLevel > ((stat == EX_TEMPFAIL) ? 8 : (stat == EX_OK) ? 7 : 6)) 17144dee0003Seric logdelivery(m, mci, &statmsg[4], ctladdr, e); 1715eb238f8cSeric 1716eb238f8cSeric if (stat != EX_TEMPFAIL) 1717eb238f8cSeric setstat(stat); 17181097d4c9Seric if (stat != EX_OK && (stat != EX_TEMPFAIL || e->e_message == NULL)) 1719198d9be0Seric { 1720198d9be0Seric if (e->e_message != NULL) 1721198d9be0Seric free(e->e_message); 1722198d9be0Seric e->e_message = newstr(&statmsg[4]); 1723198d9be0Seric } 17248557d168Seric errno = 0; 1725d4bd8f0eSbostic #ifdef NAMED_BIND 1726f28da541Smiriam h_errno = 0; 1727d4bd8f0eSbostic #endif 1728eb238f8cSeric } 1729eb238f8cSeric /* 1730eb238f8cSeric ** LOGDELIVERY -- log the delivery in the system log 1731eb238f8cSeric ** 17322c9b4f99Seric ** Care is taken to avoid logging lines that are too long, because 17332c9b4f99Seric ** some versions of syslog have an unfortunate proclivity for core 17342c9b4f99Seric ** dumping. This is a hack, to be sure, that is at best empirical. 17352c9b4f99Seric ** 1736eb238f8cSeric ** Parameters: 173781161401Seric ** m -- the mailer info. Can be NULL for initial queue. 173881161401Seric ** mci -- the mailer connection info -- can be NULL if the 173981161401Seric ** log is occuring when no connection is active. 174081161401Seric ** stat -- the message to print for the status. 17414dee0003Seric ** ctladdr -- the controlling address for the to list. 174281161401Seric ** e -- the current envelope. 1743eb238f8cSeric ** 1744eb238f8cSeric ** Returns: 1745eb238f8cSeric ** none 1746eb238f8cSeric ** 1747eb238f8cSeric ** Side Effects: 1748eb238f8cSeric ** none 1749eb238f8cSeric */ 1750eb238f8cSeric 17514dee0003Seric logdelivery(m, mci, stat, ctladdr, e) 175281161401Seric MAILER *m; 175381161401Seric register MCI *mci; 1754eb238f8cSeric char *stat; 17554dee0003Seric ADDRESS *ctladdr; 1756b31e7f2bSeric register ENVELOPE *e; 17575cf56be3Seric { 1758eb238f8cSeric # ifdef LOG 17594dee0003Seric register char *bp; 17602c9b4f99Seric register char *p; 17612c9b4f99Seric int l; 1762d6acf3eeSeric char buf[512]; 17639507d1f9Seric 17643a100e8bSeric # if (SYSLOG_BUFSIZE) >= 256 17654dee0003Seric bp = buf; 17664dee0003Seric if (ctladdr != NULL) 17674dee0003Seric { 17684dee0003Seric strcpy(bp, ", ctladdr="); 1769f62f08c7Seric strcat(bp, shortenstring(ctladdr->q_paddr, 83)); 17704dee0003Seric bp += strlen(bp); 17714dee0003Seric if (bitset(QGOODUID, ctladdr->q_flags)) 17724dee0003Seric { 17734dee0003Seric (void) sprintf(bp, " (%d/%d)", 17744dee0003Seric ctladdr->q_uid, ctladdr->q_gid); 17754dee0003Seric bp += strlen(bp); 17764dee0003Seric } 17774dee0003Seric } 17784dee0003Seric 17794dee0003Seric (void) sprintf(bp, ", delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 17804dee0003Seric bp += strlen(bp); 178181161401Seric 178248ed5d33Seric if (m != NULL) 178371ff6caaSeric { 17844dee0003Seric (void) strcpy(bp, ", mailer="); 17854dee0003Seric (void) strcat(bp, m->m_name); 17864dee0003Seric bp += strlen(bp); 178771ff6caaSeric } 178848ed5d33Seric 178948ed5d33Seric if (mci != NULL && mci->mci_host != NULL) 179071ff6caaSeric { 179171ff6caaSeric # ifdef DAEMON 1792e2f2f828Seric extern SOCKADDR CurHostAddr; 179348ed5d33Seric # endif 179471ff6caaSeric 17954dee0003Seric (void) strcpy(bp, ", relay="); 17964dee0003Seric (void) strcat(bp, mci->mci_host); 179748ed5d33Seric 179848ed5d33Seric # ifdef DAEMON 17992bdfc6b9Seric (void) strcat(bp, " ["); 18004dee0003Seric (void) strcat(bp, anynet_ntoa(&CurHostAddr)); 18012bdfc6b9Seric (void) strcat(bp, "]"); 180271ff6caaSeric # endif 180371ff6caaSeric } 18049507d1f9Seric else 180548ed5d33Seric { 180648ed5d33Seric char *p = macvalue('h', e); 18079507d1f9Seric 180848ed5d33Seric if (p != NULL && p[0] != '\0') 180948ed5d33Seric { 18104dee0003Seric (void) strcpy(bp, ", relay="); 18114dee0003Seric (void) strcat(bp, p); 181248ed5d33Seric } 181348ed5d33Seric } 1814cb082c5bSeric bp += strlen(bp); 1815d6acf3eeSeric 18163a100e8bSeric #define STATLEN (((SYSLOG_BUFSIZE) - 100) / 4) 18173a100e8bSeric #if (STATLEN) < 63 18183a100e8bSeric # undef STATLEN 18193a100e8bSeric # define STATLEN 63 18203a100e8bSeric #endif 18213a100e8bSeric #if (STATLEN) > 203 18223a100e8bSeric # undef STATLEN 18233a100e8bSeric # define STATLEN 203 18243a100e8bSeric #endif 18253a100e8bSeric 18263a100e8bSeric if ((bp - buf) > (sizeof buf - ((STATLEN) + 20))) 18272c9b4f99Seric { 18282c9b4f99Seric /* desperation move -- truncate data */ 18293a100e8bSeric bp = buf + sizeof buf - ((STATLEN) + 17); 18302c9b4f99Seric strcpy(bp, "..."); 18312c9b4f99Seric bp += 3; 18322c9b4f99Seric } 18332c9b4f99Seric 18342c9b4f99Seric (void) strcpy(bp, ", stat="); 18352c9b4f99Seric bp += strlen(bp); 18363a100e8bSeric 18373a100e8bSeric (void) strcpy(bp, shortenstring(stat, (STATLEN))); 18382c9b4f99Seric 18392c9b4f99Seric l = SYSLOG_BUFSIZE - 100 - strlen(buf); 18402c9b4f99Seric p = e->e_to; 18412c9b4f99Seric while (strlen(p) >= l) 18422c9b4f99Seric { 18432c9b4f99Seric register char *q = strchr(p + l, ','); 18442c9b4f99Seric 18452a1b6b73Seric if (q == NULL) 18462c9b4f99Seric break; 18472c9b4f99Seric syslog(LOG_INFO, "%s: to=%.*s [more]%s", 18482c9b4f99Seric e->e_id, ++q - p, p, buf); 18492c9b4f99Seric p = q; 18502c9b4f99Seric } 18512c9b4f99Seric syslog(LOG_INFO, "%s: to=%s%s", e->e_id, p, buf); 18523a100e8bSeric 18533a100e8bSeric # else /* we have a very short log buffer size */ 18543a100e8bSeric 18554e797715Seric l = SYSLOG_BUFSIZE - 80; 18563a100e8bSeric p = e->e_to; 18573a100e8bSeric while (strlen(p) >= l) 18583a100e8bSeric { 18593a100e8bSeric register char *q = strchr(p + l, ','); 18603a100e8bSeric 18613a100e8bSeric if (q == NULL) 18623a100e8bSeric break; 18633a100e8bSeric syslog(LOG_INFO, "%s: to=%.*s [more]", 18643a100e8bSeric e->e_id, ++q - p, p); 18653a100e8bSeric p = q; 18663a100e8bSeric } 18673a100e8bSeric syslog(LOG_INFO, "%s: to=%s", e->e_id, p); 18683a100e8bSeric 18693a100e8bSeric if (ctladdr != NULL) 18703a100e8bSeric { 18713a100e8bSeric bp = buf; 18723a100e8bSeric strcpy(buf, "ctladdr="); 18733a100e8bSeric bp += strlen(buf); 18743a100e8bSeric strcpy(bp, shortenstring(ctladdr->q_paddr, 83)); 18753a100e8bSeric bp += strlen(buf); 18763a100e8bSeric if (bitset(QGOODUID, ctladdr->q_flags)) 18773a100e8bSeric { 18783a100e8bSeric (void) sprintf(bp, " (%d/%d)", 18793a100e8bSeric ctladdr->q_uid, ctladdr->q_gid); 18803a100e8bSeric bp += strlen(bp); 18813a100e8bSeric } 18823a100e8bSeric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 18833a100e8bSeric } 18844e797715Seric bp = buf; 18854e797715Seric sprintf(bp, "delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 18864e797715Seric bp += strlen(bp); 18873a100e8bSeric 18883a100e8bSeric if (m != NULL) 18894e797715Seric { 18904e797715Seric sprintf(bp, ", mailer=%s", m->m_name); 18914e797715Seric bp += strlen(bp); 18924e797715Seric } 1893*b056abd0Seric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 18943a100e8bSeric 1895*b056abd0Seric buf[0] = '\0'; 18963a100e8bSeric if (mci != NULL && mci->mci_host != NULL) 18973a100e8bSeric { 18983a100e8bSeric # ifdef DAEMON 18993a100e8bSeric extern SOCKADDR CurHostAddr; 19003a100e8bSeric # endif 19013a100e8bSeric 1902*b056abd0Seric sprintf(buf, ", relay=%s", mci->mci_host); 19033a100e8bSeric 19043a100e8bSeric # ifdef DAEMON 1905*b056abd0Seric (void) strcat(buf, " ["); 1906*b056abd0Seric (void) strcat(buf, anynet_ntoa(&CurHostAddr)); 1907*b056abd0Seric (void) strcat(buf, "]"); 19083a100e8bSeric # endif 19093a100e8bSeric } 19103a100e8bSeric else 19113a100e8bSeric { 19123a100e8bSeric char *p = macvalue('h', e); 19133a100e8bSeric 19143a100e8bSeric if (p != NULL && p[0] != '\0') 1915*b056abd0Seric sprintf(buf, ", relay=%s", p); 19163a100e8bSeric } 1917*b056abd0Seric if (buf[0] != '\0') 19184e797715Seric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19193a100e8bSeric 19203a100e8bSeric syslog(LOG_INFO, "%s: stat=%s", e->e_id, shortenstring(stat, 63)); 19213a100e8bSeric # endif /* short log buffer */ 19226c2c3107Seric # endif /* LOG */ 192325a99e2eSeric } 192425a99e2eSeric /* 192551552439Seric ** PUTFROMLINE -- output a UNIX-style from line (or whatever) 192625a99e2eSeric ** 192751552439Seric ** This can be made an arbitrary message separator by changing $l 192851552439Seric ** 19299b6c17a6Seric ** One of the ugliest hacks seen by human eyes is contained herein: 19309b6c17a6Seric ** UUCP wants those stupid "remote from <host>" lines. Why oh why 19319b6c17a6Seric ** does a well-meaning programmer such as myself have to deal with 19329b6c17a6Seric ** this kind of antique garbage???? 193325a99e2eSeric ** 193425a99e2eSeric ** Parameters: 19355aa0f353Seric ** mci -- the connection information. 19365aa0f353Seric ** e -- the envelope. 193725a99e2eSeric ** 193825a99e2eSeric ** Returns: 193951552439Seric ** none 194025a99e2eSeric ** 194125a99e2eSeric ** Side Effects: 194251552439Seric ** outputs some text to fp. 194325a99e2eSeric */ 194425a99e2eSeric 19455aa0f353Seric putfromline(mci, e) 19465aa0f353Seric register MCI *mci; 1947b31e7f2bSeric ENVELOPE *e; 194825a99e2eSeric { 19492bc47524Seric char *template = "\201l\n"; 195051552439Seric char buf[MAXLINE]; 195125a99e2eSeric 19525aa0f353Seric if (bitnset(M_NHDR, mci->mci_mailer->m_flags)) 195351552439Seric return; 195413bbc08cSeric 19552c7e1b8dSeric # ifdef UGLYUUCP 19565aa0f353Seric if (bitnset(M_UGLYUUCP, mci->mci_mailer->m_flags)) 195774b6e67bSeric { 1958ea09d6edSeric char *bang; 1959ea09d6edSeric char xbuf[MAXLINE]; 196074b6e67bSeric 1961ee4b0922Seric expand("\201g", buf, &buf[sizeof buf - 1], e); 19626c2c3107Seric bang = strchr(buf, '!'); 196374b6e67bSeric if (bang == NULL) 196434fcca25Seric { 196534fcca25Seric errno = 0; 196634fcca25Seric syserr("554 No ! in UUCP From address! (%s given)", buf); 196734fcca25Seric } 196874b6e67bSeric else 1969588cad61Seric { 1970ea09d6edSeric *bang++ = '\0'; 19712bc47524Seric (void) sprintf(xbuf, "From %s \201d remote from %s\n", bang, buf); 1972ea09d6edSeric template = xbuf; 197374b6e67bSeric } 1974588cad61Seric } 19756c2c3107Seric # endif /* UGLYUUCP */ 1976b31e7f2bSeric expand(template, buf, &buf[sizeof buf - 1], e); 19775aa0f353Seric putline(buf, mci); 1978bc6e2962Seric } 1979bc6e2962Seric /* 198051552439Seric ** PUTBODY -- put the body of a message. 198151552439Seric ** 198251552439Seric ** Parameters: 19835aa0f353Seric ** mci -- the connection information. 19849a6a5f55Seric ** e -- the envelope to put out. 198503c02fdeSeric ** separator -- if non-NULL, a message separator that must 198603c02fdeSeric ** not be permitted in the resulting message. 198751552439Seric ** 198851552439Seric ** Returns: 198951552439Seric ** none. 199051552439Seric ** 199151552439Seric ** Side Effects: 199251552439Seric ** The message is written onto fp. 199351552439Seric */ 199451552439Seric 19955aa0f353Seric putbody(mci, e, separator) 19965aa0f353Seric register MCI *mci; 19979a6a5f55Seric register ENVELOPE *e; 199803c02fdeSeric char *separator; 199951552439Seric { 200077b52738Seric char buf[MAXLINE]; 200151552439Seric 200251552439Seric /* 200351552439Seric ** Output the body of the message 200451552439Seric */ 200551552439Seric 20069a6a5f55Seric if (e->e_dfp == NULL) 200751552439Seric { 20089a6a5f55Seric if (e->e_df != NULL) 20099a6a5f55Seric { 20109a6a5f55Seric e->e_dfp = fopen(e->e_df, "r"); 20119a6a5f55Seric if (e->e_dfp == NULL) 20128f9146b0Srick syserr("putbody: Cannot open %s for %s from %s", 2013e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 20149a6a5f55Seric } 20159a6a5f55Seric else 20165aa0f353Seric putline("<<< No Message Collected >>>", mci); 20179a6a5f55Seric } 20189a6a5f55Seric if (e->e_dfp != NULL) 20199a6a5f55Seric { 20209a6a5f55Seric rewind(e->e_dfp); 20215aa0f353Seric while (!ferror(mci->mci_out) && fgets(buf, sizeof buf, e->e_dfp) != NULL) 202224fc8aeeSeric { 20235aa0f353Seric if (buf[0] == 'F' && 20245aa0f353Seric bitnset(M_ESCFROM, mci->mci_mailer->m_flags) && 2025d6fa2b58Sbostic strncmp(buf, "From ", 5) == 0) 20265aa0f353Seric (void) putc('>', mci->mci_out); 202703c02fdeSeric if (buf[0] == '-' && buf[1] == '-' && separator != NULL) 202803c02fdeSeric { 202903c02fdeSeric /* possible separator */ 203003c02fdeSeric int sl = strlen(separator); 203103c02fdeSeric 203203c02fdeSeric if (strncmp(&buf[2], separator, sl) == 0) 20335aa0f353Seric (void) putc(' ', mci->mci_out); 203403c02fdeSeric } 20355aa0f353Seric putline(buf, mci); 203624fc8aeeSeric } 203751552439Seric 20389a6a5f55Seric if (ferror(e->e_dfp)) 203951552439Seric { 2040df106f0bSeric syserr("putbody: %s: read error", e->e_df); 204151552439Seric ExitStat = EX_IOERR; 204251552439Seric } 204351552439Seric } 204451552439Seric 20450890ba1fSeric /* some mailers want extra blank line at end of message */ 20465aa0f353Seric if (bitnset(M_BLANKEND, mci->mci_mailer->m_flags) && 20475aa0f353Seric buf[0] != '\0' && buf[0] != '\n') 20485aa0f353Seric putline("", mci); 20490890ba1fSeric 20505aa0f353Seric (void) fflush(mci->mci_out); 20515aa0f353Seric if (ferror(mci->mci_out) && errno != EPIPE) 205251552439Seric { 205351552439Seric syserr("putbody: write error"); 205451552439Seric ExitStat = EX_IOERR; 205551552439Seric } 205651552439Seric errno = 0; 205725a99e2eSeric } 205825a99e2eSeric /* 205925a99e2eSeric ** MAILFILE -- Send a message to a file. 206025a99e2eSeric ** 2061f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 2062f129ec7dSeric ** bits, sendmail will try to become the owner of that file 2063f129ec7dSeric ** rather than the real user. Obviously, this only works if 2064f129ec7dSeric ** sendmail runs as root. 2065f129ec7dSeric ** 2066588cad61Seric ** This could be done as a subordinate mailer, except that it 2067588cad61Seric ** is used implicitly to save messages in ~/dead.letter. We 2068588cad61Seric ** view this as being sufficiently important as to include it 2069588cad61Seric ** here. For example, if the system is dying, we shouldn't have 2070588cad61Seric ** to create another process plus some pipes to save the message. 2071588cad61Seric ** 207225a99e2eSeric ** Parameters: 207325a99e2eSeric ** filename -- the name of the file to send to. 20746259796dSeric ** ctladdr -- the controlling address header -- includes 20756259796dSeric ** the userid/groupid to be when sending. 207625a99e2eSeric ** 207725a99e2eSeric ** Returns: 207825a99e2eSeric ** The exit code associated with the operation. 207925a99e2eSeric ** 208025a99e2eSeric ** Side Effects: 208125a99e2eSeric ** none. 208225a99e2eSeric */ 208325a99e2eSeric 2084b31e7f2bSeric mailfile(filename, ctladdr, e) 208525a99e2eSeric char *filename; 20866259796dSeric ADDRESS *ctladdr; 2087b31e7f2bSeric register ENVELOPE *e; 208825a99e2eSeric { 208925a99e2eSeric register FILE *f; 209032d19d43Seric register int pid; 209115d084d5Seric int mode; 209225a99e2eSeric 2093671745f3Seric if (tTd(11, 1)) 2094671745f3Seric { 2095671745f3Seric printf("mailfile %s\n ctladdr=", filename); 2096671745f3Seric printaddr(ctladdr, FALSE); 2097671745f3Seric } 2098671745f3Seric 2099f170942cSeric if (e->e_xfp != NULL) 2100f170942cSeric fflush(e->e_xfp); 2101f170942cSeric 210232d19d43Seric /* 210332d19d43Seric ** Fork so we can change permissions here. 210432d19d43Seric ** Note that we MUST use fork, not vfork, because of 210532d19d43Seric ** the complications of calling subroutines, etc. 210632d19d43Seric */ 210732d19d43Seric 210832d19d43Seric DOFORK(fork); 210932d19d43Seric 211032d19d43Seric if (pid < 0) 211132d19d43Seric return (EX_OSERR); 211232d19d43Seric else if (pid == 0) 211332d19d43Seric { 211432d19d43Seric /* child -- actually write to file */ 2115f129ec7dSeric struct stat stb; 21165aa0f353Seric MCI mcibuf; 2117f129ec7dSeric 21182b9178d3Seric (void) setsignal(SIGINT, SIG_DFL); 21192b9178d3Seric (void) setsignal(SIGHUP, SIG_DFL); 21202b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 21213462ad9eSeric (void) umask(OldUmask); 212295f16dc0Seric 2123f129ec7dSeric if (stat(filename, &stb) < 0) 21243a98e7eaSeric stb.st_mode = FileMode; 212515d084d5Seric mode = stb.st_mode; 212695f16dc0Seric 212795f16dc0Seric /* limit the errors to those actually caused in the child */ 212895f16dc0Seric errno = 0; 212995f16dc0Seric ExitStat = EX_OK; 213095f16dc0Seric 2131f129ec7dSeric if (bitset(0111, stb.st_mode)) 2132f129ec7dSeric exit(EX_CANTCREAT); 213319428781Seric if (ctladdr != NULL) 213415d084d5Seric { 213515d084d5Seric /* ignore setuid and setgid bits */ 213615d084d5Seric mode &= ~(S_ISGID|S_ISUID); 213715d084d5Seric } 213815d084d5Seric 21398f9146b0Srick /* we have to open the dfile BEFORE setuid */ 21408f9146b0Srick if (e->e_dfp == NULL && e->e_df != NULL) 21418f9146b0Srick { 21428f9146b0Srick e->e_dfp = fopen(e->e_df, "r"); 214395f16dc0Seric if (e->e_dfp == NULL) 214495f16dc0Seric { 21458f9146b0Srick syserr("mailfile: Cannot open %s for %s from %s", 2146e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 21478f9146b0Srick } 21488f9146b0Srick } 21498f9146b0Srick 215015d084d5Seric if (!bitset(S_ISGID, mode) || setgid(stb.st_gid) < 0) 2151e36b99e2Seric { 215219428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 215395f16dc0Seric { 2154898a126bSbostic (void) initgroups(DefUser, DefGid); 215595f16dc0Seric } 215695f16dc0Seric else 215795f16dc0Seric { 2158898a126bSbostic (void) initgroups(ctladdr->q_ruser ? 2159898a126bSbostic ctladdr->q_ruser : ctladdr->q_user, 2160898a126bSbostic ctladdr->q_gid); 2161898a126bSbostic } 2162e36b99e2Seric } 216315d084d5Seric if (!bitset(S_ISUID, mode) || setuid(stb.st_uid) < 0) 2164e36b99e2Seric { 216519428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 2166e36b99e2Seric (void) setuid(DefUid); 2167e36b99e2Seric else 21686259796dSeric (void) setuid(ctladdr->q_uid); 2169e36b99e2Seric } 217095f16dc0Seric FileName = filename; 217195f16dc0Seric LineNumber = 0; 21723a98e7eaSeric f = dfopen(filename, O_WRONLY|O_CREAT|O_APPEND, FileMode); 217325a99e2eSeric if (f == NULL) 217495f16dc0Seric { 2175b6a0de9dSeric message("554 cannot open: %s", errstring(errno)); 217632d19d43Seric exit(EX_CANTCREAT); 217795f16dc0Seric } 217825a99e2eSeric 21795aa0f353Seric bzero(&mcibuf, sizeof mcibuf); 21805aa0f353Seric mcibuf.mci_mailer = FileMailer; 21815aa0f353Seric mcibuf.mci_out = f; 21825aa0f353Seric if (bitnset(M_7BITS, FileMailer->m_flags)) 21835aa0f353Seric mcibuf.mci_flags |= MCIF_7BIT; 21845aa0f353Seric 21855aa0f353Seric putfromline(&mcibuf, e); 21865aa0f353Seric (*e->e_puthdr)(&mcibuf, e); 21875aa0f353Seric putline("\n", &mcibuf); 21885aa0f353Seric (*e->e_putbody)(&mcibuf, e, NULL); 21895aa0f353Seric putline("\n", &mcibuf); 219095f16dc0Seric if (ferror(f)) 219195f16dc0Seric { 2192b6a0de9dSeric message("451 I/O error: %s", errstring(errno)); 219395f16dc0Seric setstat(EX_IOERR); 219495f16dc0Seric } 2195ee4b0922Seric (void) xfclose(f, "mailfile", filename); 219632d19d43Seric (void) fflush(stdout); 2197e36b99e2Seric 219827628d59Seric /* reset ISUID & ISGID bits for paranoid systems */ 2199c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 220095f16dc0Seric exit(ExitStat); 220113bbc08cSeric /*NOTREACHED*/ 220232d19d43Seric } 220332d19d43Seric else 220432d19d43Seric { 220532d19d43Seric /* parent -- wait for exit status */ 2206588cad61Seric int st; 220732d19d43Seric 2208588cad61Seric st = waitfor(pid); 2209bf9bc890Seric if (WIFEXITED(st)) 2210bf9bc890Seric return (WEXITSTATUS(st)); 2211588cad61Seric else 2212b6a0de9dSeric { 2213b6a0de9dSeric syserr("child died on signal %d", st); 2214bf9bc890Seric return (EX_UNAVAILABLE); 2215b6a0de9dSeric } 22168f9146b0Srick /*NOTREACHED*/ 221732d19d43Seric } 221825a99e2eSeric } 2219ea4dc939Seric /* 2220e103b48fSeric ** HOSTSIGNATURE -- return the "signature" for a host. 2221e103b48fSeric ** 2222e103b48fSeric ** The signature describes how we are going to send this -- it 2223e103b48fSeric ** can be just the hostname (for non-Internet hosts) or can be 2224e103b48fSeric ** an ordered list of MX hosts. 2225e103b48fSeric ** 2226e103b48fSeric ** Parameters: 2227e103b48fSeric ** m -- the mailer describing this host. 2228e103b48fSeric ** host -- the host name. 2229e103b48fSeric ** e -- the current envelope. 2230e103b48fSeric ** 2231e103b48fSeric ** Returns: 2232e103b48fSeric ** The signature for this host. 2233e103b48fSeric ** 2234e103b48fSeric ** Side Effects: 2235e103b48fSeric ** Can tweak the symbol table. 2236e103b48fSeric */ 2237e103b48fSeric 2238e103b48fSeric char * 2239e103b48fSeric hostsignature(m, host, e) 2240e103b48fSeric register MAILER *m; 2241e103b48fSeric char *host; 2242e103b48fSeric ENVELOPE *e; 2243e103b48fSeric { 2244e103b48fSeric register char *p; 2245e103b48fSeric register STAB *s; 2246e103b48fSeric int i; 2247e103b48fSeric int len; 2248e103b48fSeric #ifdef NAMED_BIND 2249e103b48fSeric int nmx; 2250e103b48fSeric auto int rcode; 2251bafdc4e5Seric char *hp; 2252bafdc4e5Seric char *endp; 2253516782b4Seric int oldoptions; 2254e103b48fSeric char *mxhosts[MAXMXHOSTS + 1]; 2255e103b48fSeric #endif 2256e103b48fSeric 2257e103b48fSeric /* 2258e103b48fSeric ** Check to see if this uses IPC -- if not, it can't have MX records. 2259e103b48fSeric */ 2260e103b48fSeric 2261e103b48fSeric p = m->m_mailer; 2262e103b48fSeric if (strcmp(p, "[IPC]") != 0 && strcmp(p, "[TCP]") != 0) 2263e103b48fSeric { 2264e103b48fSeric /* just an ordinary mailer */ 2265e103b48fSeric return host; 2266e103b48fSeric } 2267e103b48fSeric 2268e103b48fSeric /* 2269e103b48fSeric ** Look it up in the symbol table. 2270e103b48fSeric */ 2271e103b48fSeric 2272e103b48fSeric s = stab(host, ST_HOSTSIG, ST_ENTER); 2273e103b48fSeric if (s->s_hostsig != NULL) 2274e103b48fSeric return s->s_hostsig; 2275e103b48fSeric 2276e103b48fSeric /* 2277e103b48fSeric ** Not already there -- create a signature. 2278e103b48fSeric */ 2279e103b48fSeric 2280e103b48fSeric #ifdef NAMED_BIND 2281516782b4Seric if (ConfigLevel < 2) 2282516782b4Seric { 2283516782b4Seric oldoptions = _res.options; 2284516782b4Seric _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 2285516782b4Seric } 2286516782b4Seric 2287bafdc4e5Seric for (hp = host; hp != NULL; hp = endp) 2288bafdc4e5Seric { 2289bafdc4e5Seric endp = strchr(hp, ':'); 2290bafdc4e5Seric if (endp != NULL) 2291bafdc4e5Seric *endp = '\0'; 2292bafdc4e5Seric 22937bf809e6Seric nmx = getmxrr(hp, mxhosts, TRUE, &rcode); 22947d55540cSeric 2295e103b48fSeric if (nmx <= 0) 2296e103b48fSeric { 2297e103b48fSeric register MCI *mci; 2298e103b48fSeric 2299e103b48fSeric /* update the connection info for this host */ 2300bafdc4e5Seric mci = mci_get(hp, m); 2301e103b48fSeric mci->mci_exitstat = rcode; 2302e103b48fSeric mci->mci_errno = errno; 2303f170942cSeric #ifdef NAMED_BIND 2304f170942cSeric mci->mci_herrno = h_errno; 2305f170942cSeric #endif 2306e103b48fSeric 2307e103b48fSeric /* and return the original host name as the signature */ 2308bafdc4e5Seric nmx = 1; 2309bafdc4e5Seric mxhosts[0] = hp; 2310e103b48fSeric } 2311e103b48fSeric 2312e103b48fSeric len = 0; 2313e103b48fSeric for (i = 0; i < nmx; i++) 2314e103b48fSeric { 2315e103b48fSeric len += strlen(mxhosts[i]) + 1; 2316e103b48fSeric } 2317bafdc4e5Seric if (s->s_hostsig != NULL) 2318bafdc4e5Seric len += strlen(s->s_hostsig) + 1; 2319bafdc4e5Seric p = xalloc(len); 2320bafdc4e5Seric if (s->s_hostsig != NULL) 2321bafdc4e5Seric { 2322bafdc4e5Seric (void) strcpy(p, s->s_hostsig); 2323bafdc4e5Seric free(s->s_hostsig); 2324bafdc4e5Seric s->s_hostsig = p; 2325bafdc4e5Seric p += strlen(p); 2326bafdc4e5Seric *p++ = ':'; 2327bafdc4e5Seric } 2328bafdc4e5Seric else 2329bafdc4e5Seric s->s_hostsig = p; 2330e103b48fSeric for (i = 0; i < nmx; i++) 2331e103b48fSeric { 2332e103b48fSeric if (i != 0) 2333e103b48fSeric *p++ = ':'; 2334e103b48fSeric strcpy(p, mxhosts[i]); 2335e103b48fSeric p += strlen(p); 2336e103b48fSeric } 2337bafdc4e5Seric if (endp != NULL) 2338bafdc4e5Seric *endp++ = ':'; 2339bafdc4e5Seric } 2340e103b48fSeric makelower(s->s_hostsig); 2341516782b4Seric if (ConfigLevel < 2) 2342516782b4Seric _res.options = oldoptions; 2343e103b48fSeric #else 2344e103b48fSeric /* not using BIND -- the signature is just the host name */ 2345e103b48fSeric s->s_hostsig = host; 2346e103b48fSeric #endif 2347e103b48fSeric if (tTd(17, 1)) 2348e103b48fSeric printf("hostsignature(%s) = %s\n", host, s->s_hostsig); 2349e103b48fSeric return s->s_hostsig; 2350e103b48fSeric } 2351