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*519e7d80Seric static char sccsid[] = "@(#)deliver.c 8.93 (Berkeley) 08/07/94"; 11e70a7521Sbostic #endif /* not lint */ 124227346bSdist 13fcde9cc8Sbostic #include "sendmail.h" 14f28da541Smiriam #include <netdb.h> 15911693bfSbostic #include <errno.h> 169d4a8008Seric #if NAMED_BIND 17912a731aSbostic #include <resolv.h> 18f170942cSeric 19f170942cSeric extern int h_errno; 20134746fbSeric #endif 2125a99e2eSeric 225d437c4dSeric extern char SmtpError[]; 235d437c4dSeric 2425a99e2eSeric /* 259c9e68d9Seric ** SENDALL -- actually send all the messages. 269c9e68d9Seric ** 279c9e68d9Seric ** Parameters: 289c9e68d9Seric ** e -- the envelope to send. 299c9e68d9Seric ** mode -- the delivery mode to use. If SM_DEFAULT, use 309c9e68d9Seric ** the current e->e_sendmode. 319c9e68d9Seric ** 329c9e68d9Seric ** Returns: 339c9e68d9Seric ** none. 349c9e68d9Seric ** 359c9e68d9Seric ** Side Effects: 369c9e68d9Seric ** Scans the send lists and sends everything it finds. 379c9e68d9Seric ** Delivers any appropriate error messages. 389c9e68d9Seric ** If we are running in a non-interactive mode, takes the 399c9e68d9Seric ** appropriate action. 409c9e68d9Seric */ 419c9e68d9Seric 429c9e68d9Seric sendall(e, mode) 439c9e68d9Seric ENVELOPE *e; 449c9e68d9Seric char mode; 459c9e68d9Seric { 469c9e68d9Seric register ADDRESS *q; 479c9e68d9Seric char *owner; 489c9e68d9Seric int otherowners; 49b056abd0Seric register ENVELOPE *ee; 50b056abd0Seric ENVELOPE *splitenv = NULL; 516103d9b4Seric bool announcequeueup; 529c9e68d9Seric 537880f3e4Seric /* 547880f3e4Seric ** If we have had global, fatal errors, don't bother sending 557880f3e4Seric ** the message at all if we are in SMTP mode. Local errors 567880f3e4Seric ** (e.g., a single address failing) will still cause the other 577880f3e4Seric ** addresses to be sent. 587880f3e4Seric */ 597880f3e4Seric 608d19a23dSeric if (bitset(EF_FATALERRS, e->e_flags) && 618d19a23dSeric (OpMode == MD_SMTP || OpMode == MD_DAEMON)) 62896b16f6Seric { 63896b16f6Seric e->e_flags |= EF_CLRQUEUE; 64896b16f6Seric return; 65896b16f6Seric } 66896b16f6Seric 679c9e68d9Seric /* determine actual delivery mode */ 68fbe2f963Seric CurrentLA = getla(); 699c9e68d9Seric if (mode == SM_DEFAULT) 709c9e68d9Seric { 719c9e68d9Seric mode = e->e_sendmode; 729c9e68d9Seric if (mode != SM_VERIFY && 739c9e68d9Seric shouldqueue(e->e_msgpriority, e->e_ctime)) 749c9e68d9Seric mode = SM_QUEUE; 756103d9b4Seric announcequeueup = mode == SM_QUEUE; 769c9e68d9Seric } 776103d9b4Seric else 786103d9b4Seric announcequeueup = FALSE; 799c9e68d9Seric 809c9e68d9Seric if (tTd(13, 1)) 819c9e68d9Seric { 820e484fe5Seric printf("\n===== SENDALL: mode %c, id %s, e_from ", 830e484fe5Seric mode, e->e_id); 849c9e68d9Seric printaddr(&e->e_from, FALSE); 859c9e68d9Seric printf("sendqueue:\n"); 869c9e68d9Seric printaddr(e->e_sendqueue, TRUE); 879c9e68d9Seric } 889c9e68d9Seric 899c9e68d9Seric /* 909c9e68d9Seric ** Do any preprocessing necessary for the mode we are running. 919c9e68d9Seric ** Check to make sure the hop count is reasonable. 929c9e68d9Seric ** Delete sends to the sender in mailing lists. 939c9e68d9Seric */ 949c9e68d9Seric 959c9e68d9Seric CurEnv = e; 969c9e68d9Seric 979c9e68d9Seric if (e->e_hopcount > MaxHopCount) 989c9e68d9Seric { 999c9e68d9Seric errno = 0; 10027607809Seric e->e_flags |= EF_FATALERRS|EF_PM_NOTIFY|EF_CLRQUEUE; 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); 208fce3c07bSeric ee->e_flags = e->e_flags & ~(EF_INQUEUE|EF_CLRQUEUE|EF_FATALERRS|EF_SENDRECEIPT); 209fce3c07bSeric ee->e_flags |= EF_NORECEIPT; 210ce5531bdSeric setsender(owner, ee, NULL, TRUE); 211ce5531bdSeric if (tTd(13, 5)) 212ce5531bdSeric { 213ce5531bdSeric printf("sendall(split): QDONTSEND "); 214ce5531bdSeric printaddr(&ee->e_from, FALSE); 215ce5531bdSeric } 216ce5531bdSeric ee->e_from.q_flags |= QDONTSEND; 217ce5531bdSeric ee->e_dfp = NULL; 218ce5531bdSeric ee->e_xfp = NULL; 219ce5531bdSeric ee->e_df = NULL; 220ce5531bdSeric ee->e_errormode = EM_MAIL; 221b056abd0Seric ee->e_sibling = splitenv; 222b056abd0Seric splitenv = ee; 223ce5531bdSeric 224ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 225ce5531bdSeric if (q->q_owner == owner) 226de1a6b1bSeric { 227ce5531bdSeric q->q_flags |= QDONTSEND; 228de1a6b1bSeric q->q_flags &= ~QQUEUEUP; 229de1a6b1bSeric } 230ce5531bdSeric for (q = ee->e_sendqueue; q != NULL; q = q->q_next) 231ce5531bdSeric if (q->q_owner != owner) 232de1a6b1bSeric { 233ce5531bdSeric q->q_flags |= QDONTSEND; 234de1a6b1bSeric q->q_flags &= ~QQUEUEUP; 235de1a6b1bSeric } 236ce5531bdSeric 237ce5531bdSeric if (e->e_df != NULL && mode != SM_VERIFY) 238ce5531bdSeric { 239ce5531bdSeric ee->e_dfp = NULL; 240da662164Seric ee->e_df = queuename(ee, 'd'); 241da662164Seric ee->e_df = newstr(ee->e_df); 242ce5531bdSeric if (link(e->e_df, ee->e_df) < 0) 243ce5531bdSeric { 244ce5531bdSeric syserr("sendall: link(%s, %s)", 245ce5531bdSeric e->e_df, ee->e_df); 246ce5531bdSeric } 247ce5531bdSeric } 248ce5531bdSeric #ifdef LOG 249ce5531bdSeric if (LogLevel > 4) 250c8b70947Seric syslog(LOG_INFO, "%s: clone %s, owner=%s", 251c8b70947Seric ee->e_id, e->e_id, owner); 252ce5531bdSeric #endif 253ce5531bdSeric } 254ce5531bdSeric } 255ce5531bdSeric 256ce5531bdSeric if (owner != NULL) 257ce5531bdSeric { 258ce5531bdSeric setsender(owner, e, NULL, TRUE); 259ce5531bdSeric if (tTd(13, 5)) 260ce5531bdSeric { 261ce5531bdSeric printf("sendall(owner): QDONTSEND "); 262ce5531bdSeric printaddr(&e->e_from, FALSE); 263ce5531bdSeric } 264ce5531bdSeric e->e_from.q_flags |= QDONTSEND; 265ce5531bdSeric e->e_errormode = EM_MAIL; 266fce3c07bSeric e->e_flags |= EF_NORECEIPT; 267ce5531bdSeric } 268ce5531bdSeric 269c1ac89b1Seric # ifdef QUEUE 270c1ac89b1Seric if ((mode == SM_QUEUE || mode == SM_FORK || 271c1ac89b1Seric (mode != SM_VERIFY && SuperSafe)) && 272c1ac89b1Seric !bitset(EF_INQUEUE, e->e_flags)) 273c1ac89b1Seric { 274c1ac89b1Seric /* be sure everything is instantiated in the queue */ 2756103d9b4Seric queueup(e, TRUE, announcequeueup); 276b056abd0Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 277b056abd0Seric queueup(ee, TRUE, announcequeueup); 278c1ac89b1Seric } 279c1ac89b1Seric #endif /* QUEUE */ 280c1ac89b1Seric 281b056abd0Seric if (splitenv != NULL) 282b056abd0Seric { 283b056abd0Seric if (tTd(13, 1)) 284b056abd0Seric { 285b056abd0Seric printf("\nsendall: Split queue; remaining queue:\n"); 286b056abd0Seric printaddr(e->e_sendqueue, TRUE); 287b056abd0Seric } 288b056abd0Seric 289b056abd0Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 290b056abd0Seric { 291b056abd0Seric CurEnv = ee; 292562ec147Seric if (mode != SM_VERIFY) 293562ec147Seric openxscript(ee); 294b056abd0Seric sendenvelope(ee, mode); 295562ec147Seric dropenvelope(ee); 296b056abd0Seric } 297b056abd0Seric 298b056abd0Seric CurEnv = e; 299b056abd0Seric } 300b056abd0Seric sendenvelope(e, mode); 301b056abd0Seric } 302b056abd0Seric 303b056abd0Seric sendenvelope(e, mode) 304b056abd0Seric register ENVELOPE *e; 305b056abd0Seric char mode; 306b056abd0Seric { 307b056abd0Seric bool oldverbose; 308b056abd0Seric int pid; 309b056abd0Seric register ADDRESS *q; 310b056abd0Seric char *qf; 311b056abd0Seric char *id; 312*519e7d80Seric bool didany; 313b056abd0Seric 3147880f3e4Seric /* 3157880f3e4Seric ** If we have had global, fatal errors, don't bother sending 3167880f3e4Seric ** the message at all if we are in SMTP mode. Local errors 3177880f3e4Seric ** (e.g., a single address failing) will still cause the other 3187880f3e4Seric ** addresses to be sent. 3197880f3e4Seric */ 3207880f3e4Seric 3218d19a23dSeric if (bitset(EF_FATALERRS, e->e_flags) && 3228d19a23dSeric (OpMode == MD_SMTP || OpMode == MD_DAEMON)) 3237880f3e4Seric { 3247880f3e4Seric e->e_flags |= EF_CLRQUEUE; 3257880f3e4Seric return; 3267880f3e4Seric } 3277880f3e4Seric 328ce5531bdSeric oldverbose = Verbose; 329c1ac89b1Seric switch (mode) 330c1ac89b1Seric { 331c1ac89b1Seric case SM_VERIFY: 332c1ac89b1Seric Verbose = TRUE; 333c1ac89b1Seric break; 334c1ac89b1Seric 335c1ac89b1Seric case SM_QUEUE: 336c1ac89b1Seric queueonly: 337c1ac89b1Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 338c1ac89b1Seric return; 339c1ac89b1Seric 340c1ac89b1Seric case SM_FORK: 341c1ac89b1Seric if (e->e_xfp != NULL) 342c1ac89b1Seric (void) fflush(e->e_xfp); 343c1ac89b1Seric 344b269aa8eSeric # if !HASFLOCK 345c1ac89b1Seric /* 3466b2765c6Seric ** Since fcntl locking has the interesting semantic that 3476b2765c6Seric ** the lock is owned by a process, not by an open file 3486b2765c6Seric ** descriptor, we have to flush this to the queue, and 3496b2765c6Seric ** then restart from scratch in the child. 350c1ac89b1Seric */ 351c1ac89b1Seric 3526b2765c6Seric /* save id for future use */ 3536b2765c6Seric id = e->e_id; 3546b2765c6Seric 3556b2765c6Seric /* now drop the envelope in the parent */ 3566b2765c6Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 3576b2765c6Seric dropenvelope(e); 3586b2765c6Seric 3596b2765c6Seric /* and reacquire in the child */ 3606b2765c6Seric (void) dowork(id, TRUE, FALSE, e); 3616b2765c6Seric 3626b2765c6Seric return; 3636b2765c6Seric 3646b2765c6Seric # else /* HASFLOCK */ 365c1ac89b1Seric 366c1ac89b1Seric pid = fork(); 367c1ac89b1Seric if (pid < 0) 368c1ac89b1Seric { 369c1ac89b1Seric goto queueonly; 370c1ac89b1Seric } 371c1ac89b1Seric else if (pid > 0) 372c1ac89b1Seric { 3730e484fe5Seric /* be sure we leave the temp files to our child */ 3740e484fe5Seric /* can't call unlockqueue to avoid unlink of xfp */ 3750e484fe5Seric if (e->e_lockfp != NULL) 3760e484fe5Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 3770e484fe5Seric e->e_lockfp = NULL; 3780e484fe5Seric 3790e484fe5Seric /* close any random open files in the envelope */ 3800e484fe5Seric closexscript(e); 3810e484fe5Seric if (e->e_dfp != NULL) 3820e484fe5Seric (void) xfclose(e->e_dfp, "sendenvelope", e->e_df); 3830e484fe5Seric e->e_dfp = NULL; 3840e484fe5Seric e->e_id = e->e_df = NULL; 3859f9b003eSeric 3869f9b003eSeric /* catch intermediate zombie */ 3879f9b003eSeric (void) waitfor(pid); 388c1ac89b1Seric return; 389c1ac89b1Seric } 390c1ac89b1Seric 391c1ac89b1Seric /* double fork to avoid zombies */ 3929f9b003eSeric pid = fork(); 3939f9b003eSeric if (pid > 0) 394c1ac89b1Seric exit(EX_OK); 395c1ac89b1Seric 396c1ac89b1Seric /* be sure we are immune from the terminal */ 3977880f3e4Seric disconnect(1, e); 398c1ac89b1Seric 3999f9b003eSeric /* prevent parent from waiting if there was an error */ 4009f9b003eSeric if (pid < 0) 4019f9b003eSeric { 4029f9b003eSeric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 4039f9b003eSeric finis(); 4049f9b003eSeric } 4059f9b003eSeric 406c1ac89b1Seric /* 407c1ac89b1Seric ** Close any cached connections. 408c1ac89b1Seric ** 409c1ac89b1Seric ** We don't send the QUIT protocol because the parent 410c1ac89b1Seric ** still knows about the connection. 411c1ac89b1Seric ** 412c1ac89b1Seric ** This should only happen when delivering an error 413c1ac89b1Seric ** message. 414c1ac89b1Seric */ 415c1ac89b1Seric 416c1ac89b1Seric mci_flush(FALSE, NULL); 417c1ac89b1Seric 4186b2765c6Seric # endif /* HASFLOCK */ 4196b2765c6Seric 420c1ac89b1Seric break; 421c1ac89b1Seric } 422c1ac89b1Seric 423c1ac89b1Seric /* 4249c9e68d9Seric ** Run through the list and send everything. 4255288e21aSeric ** 4265288e21aSeric ** Set EF_GLOBALERRS so that error messages during delivery 4275288e21aSeric ** result in returned mail. 4289c9e68d9Seric */ 4299c9e68d9Seric 4309c9e68d9Seric e->e_nsent = 0; 4315288e21aSeric e->e_flags |= EF_GLOBALERRS; 432*519e7d80Seric didany = FALSE; 433faad2b16Seric 434faad2b16Seric /* now run through the queue */ 4359c9e68d9Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 4369c9e68d9Seric { 437fdc75a0fSeric #ifdef XDEBUG 438fdc75a0fSeric char wbuf[MAXNAME + 20]; 439fdc75a0fSeric 440fdc75a0fSeric (void) sprintf(wbuf, "sendall(%s)", q->q_paddr); 441fdc75a0fSeric checkfd012(wbuf); 442fdc75a0fSeric #endif 4439c9e68d9Seric if (mode == SM_VERIFY) 4449c9e68d9Seric { 4459c9e68d9Seric e->e_to = q->q_paddr; 4469c9e68d9Seric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4478dfca105Seric { 448fafe46e1Seric if (q->q_host != NULL && q->q_host[0] != '\0') 4498dfca105Seric message("deliverable: mailer %s, host %s, user %s", 4508dfca105Seric q->q_mailer->m_name, 4518dfca105Seric q->q_host, 4528dfca105Seric q->q_user); 453fafe46e1Seric else 454fafe46e1Seric message("deliverable: mailer %s, user %s", 455fafe46e1Seric q->q_mailer->m_name, 456fafe46e1Seric q->q_user); 4578dfca105Seric } 4589c9e68d9Seric } 4599c9e68d9Seric else if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4609c9e68d9Seric { 4619c9e68d9Seric # ifdef QUEUE 4629c9e68d9Seric /* 4639c9e68d9Seric ** Checkpoint the send list every few addresses 4649c9e68d9Seric */ 4659c9e68d9Seric 4669c9e68d9Seric if (e->e_nsent >= CheckpointInterval) 4679c9e68d9Seric { 4689c9e68d9Seric queueup(e, TRUE, FALSE); 4699c9e68d9Seric e->e_nsent = 0; 4709c9e68d9Seric } 4719c9e68d9Seric # endif /* QUEUE */ 4729c9e68d9Seric (void) deliver(e, q); 473*519e7d80Seric didany = TRUE; 4749c9e68d9Seric } 4759c9e68d9Seric } 4769c9e68d9Seric Verbose = oldverbose; 477*519e7d80Seric if (didany) 478*519e7d80Seric { 479*519e7d80Seric e->e_dtime = curtime(); 480*519e7d80Seric e->e_ntries++; 481*519e7d80Seric } 4829c9e68d9Seric 483fdc75a0fSeric #ifdef XDEBUG 484fdc75a0fSeric checkfd012("end of sendenvelope"); 485fdc75a0fSeric #endif 486fdc75a0fSeric 4879c9e68d9Seric if (mode == SM_FORK) 4889c9e68d9Seric finis(); 4899c9e68d9Seric } 4909c9e68d9Seric /* 4919c9e68d9Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 4929c9e68d9Seric ** 4939c9e68d9Seric ** This MUST be a macro, since after a vfork we are running 4949c9e68d9Seric ** two processes on the same stack!!! 4959c9e68d9Seric ** 4969c9e68d9Seric ** Parameters: 4979c9e68d9Seric ** none. 4989c9e68d9Seric ** 4999c9e68d9Seric ** Returns: 5009c9e68d9Seric ** From a macro??? You've got to be kidding! 5019c9e68d9Seric ** 5029c9e68d9Seric ** Side Effects: 5039c9e68d9Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 5049c9e68d9Seric ** pid of child in parent, zero in child. 5059c9e68d9Seric ** -1 on unrecoverable error. 5069c9e68d9Seric ** 5079c9e68d9Seric ** Notes: 5089c9e68d9Seric ** I'm awfully sorry this looks so awful. That's 5099c9e68d9Seric ** vfork for you..... 5109c9e68d9Seric */ 5119c9e68d9Seric 5129c9e68d9Seric # define NFORKTRIES 5 5139c9e68d9Seric 5149c9e68d9Seric # ifndef FORK 5159c9e68d9Seric # define FORK fork 5169c9e68d9Seric # endif 5179c9e68d9Seric 5189c9e68d9Seric # define DOFORK(fORKfN) \ 5199c9e68d9Seric {\ 5209c9e68d9Seric register int i;\ 5219c9e68d9Seric \ 5229c9e68d9Seric for (i = NFORKTRIES; --i >= 0; )\ 5239c9e68d9Seric {\ 5249c9e68d9Seric pid = fORKfN();\ 5259c9e68d9Seric if (pid >= 0)\ 5269c9e68d9Seric break;\ 5279c9e68d9Seric if (i > 0)\ 5289c9e68d9Seric sleep((unsigned) NFORKTRIES - i);\ 5299c9e68d9Seric }\ 5309c9e68d9Seric } 5319c9e68d9Seric /* 5329c9e68d9Seric ** DOFORK -- simple fork interface to DOFORK. 5339c9e68d9Seric ** 5349c9e68d9Seric ** Parameters: 5359c9e68d9Seric ** none. 5369c9e68d9Seric ** 5379c9e68d9Seric ** Returns: 5389c9e68d9Seric ** pid of child in parent. 5399c9e68d9Seric ** zero in child. 5409c9e68d9Seric ** -1 on error. 5419c9e68d9Seric ** 5429c9e68d9Seric ** Side Effects: 5439c9e68d9Seric ** returns twice, once in parent and once in child. 5449c9e68d9Seric */ 5459c9e68d9Seric 5469c9e68d9Seric dofork() 5479c9e68d9Seric { 5489c9e68d9Seric register int pid; 5499c9e68d9Seric 5509c9e68d9Seric DOFORK(fork); 5519c9e68d9Seric return (pid); 5529c9e68d9Seric } 5539c9e68d9Seric /* 55413bbc08cSeric ** DELIVER -- Deliver a message to a list of addresses. 55513bbc08cSeric ** 55613bbc08cSeric ** This routine delivers to everyone on the same host as the 55713bbc08cSeric ** user on the head of the list. It is clever about mailers 55813bbc08cSeric ** that don't handle multiple users. It is NOT guaranteed 55913bbc08cSeric ** that it will deliver to all these addresses however -- so 56013bbc08cSeric ** deliver should be called once for each address on the 56113bbc08cSeric ** list. 56225a99e2eSeric ** 56325a99e2eSeric ** Parameters: 564588cad61Seric ** e -- the envelope to deliver. 565c77d1c25Seric ** firstto -- head of the address list to deliver to. 56625a99e2eSeric ** 56725a99e2eSeric ** Returns: 56825a99e2eSeric ** zero -- successfully delivered. 56925a99e2eSeric ** else -- some failure, see ExitStat for more info. 57025a99e2eSeric ** 57125a99e2eSeric ** Side Effects: 57225a99e2eSeric ** The standard input is passed off to someone. 57325a99e2eSeric */ 57425a99e2eSeric 575588cad61Seric deliver(e, firstto) 576588cad61Seric register ENVELOPE *e; 577c77d1c25Seric ADDRESS *firstto; 57825a99e2eSeric { 57978442df3Seric char *host; /* host being sent to */ 58078442df3Seric char *user; /* user being sent to */ 58125a99e2eSeric char **pvp; 5825dfc646bSeric register char **mvp; 58325a99e2eSeric register char *p; 584588cad61Seric register MAILER *m; /* mailer for this recipient */ 5856259796dSeric ADDRESS *ctladdr; 586b31e7f2bSeric register MCI *mci; 587c77d1c25Seric register ADDRESS *to = firstto; 588c579ef51Seric bool clever = FALSE; /* running user smtp to this mailer */ 589772e6e50Seric ADDRESS *tochain = NULL; /* chain of users in this mailer call */ 590911693bfSbostic int rcode; /* response code */ 591e103b48fSeric char *firstsig; /* signature of firstto */ 5929c9e68d9Seric int pid; 5939c9e68d9Seric char *curhost; 5949c9e68d9Seric int mpvect[2]; 5959c9e68d9Seric int rpvect[2]; 596ee6bf8dfSeric char *pv[MAXPV+1]; 597579ef0ddSeric char tobuf[TOBUFSIZE]; /* text line of to people */ 598ee6bf8dfSeric char buf[MAXNAME]; 599c23ed322Seric char rpathbuf[MAXNAME]; /* translated return path */ 600fabb3bd4Seric extern int checkcompat(); 60125a99e2eSeric 60235490626Seric errno = 0; 603ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags)) 6045dfc646bSeric return (0); 60525a99e2eSeric 6069d4a8008Seric #if NAMED_BIND 607912a731aSbostic /* unless interactive, try twice, over a minute */ 6088d19a23dSeric if (OpMode == MD_DAEMON || OpMode == MD_SMTP) 6098d19a23dSeric { 610912a731aSbostic _res.retrans = 30; 611912a731aSbostic _res.retry = 2; 612912a731aSbostic } 613d4bd8f0eSbostic #endif 614912a731aSbostic 61551552439Seric m = to->q_mailer; 61651552439Seric host = to->q_host; 617c9be6216Seric CurEnv = e; /* just in case */ 6184384d521Seric e->e_statmsg = NULL; 619df106f0bSeric SmtpError[0] = '\0'; 62051552439Seric 6216ef48975Seric if (tTd(10, 1)) 622562ec147Seric printf("\n--deliver, id=%s, mailer=%s, host=`%s', first user=`%s'\n", 623562ec147Seric e->e_id, m->m_name, host, to->q_user); 624ab81ee53Seric if (tTd(10, 100)) 625ab81ee53Seric printopenfds(FALSE); 626f3dbc832Seric 627f3dbc832Seric /* 628f3dbc832Seric ** If this mailer is expensive, and if we don't want to make 629f3dbc832Seric ** connections now, just mark these addresses and return. 630f3dbc832Seric ** This is useful if we want to batch connections to 631f3dbc832Seric ** reduce load. This will cause the messages to be 632f3dbc832Seric ** queued up, and a daemon will come along to send the 633f3dbc832Seric ** messages later. 634f3dbc832Seric ** This should be on a per-mailer basis. 635f3dbc832Seric */ 636f3dbc832Seric 63779aa5155Seric if (NoConnect && bitnset(M_EXPENSIVE, m->m_flags) && !Verbose) 638f3dbc832Seric { 639f3dbc832Seric for (; to != NULL; to = to->q_next) 640f4560e80Seric { 641ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 642c6e18ac5Seric to->q_mailer != m) 643f4560e80Seric continue; 644268a25e1Seric to->q_flags |= QQUEUEUP; 645588cad61Seric e->e_to = to->q_paddr; 64608b25121Seric message("queued"); 6472f624c86Seric if (LogLevel > 8) 6484dee0003Seric logdelivery(m, NULL, "queued", NULL, e); 649f4560e80Seric } 650588cad61Seric e->e_to = NULL; 651f3dbc832Seric return (0); 652f3dbc832Seric } 653f3dbc832Seric 65425a99e2eSeric /* 6555dfc646bSeric ** Do initial argv setup. 6565dfc646bSeric ** Insert the mailer name. Notice that $x expansion is 6575dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 6585dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 6595dfc646bSeric ** code does not check for 'pv' overflow; this places a 6605dfc646bSeric ** manifest lower limit of 4 for MAXPV. 6613bea8136Seric ** The from address rewrite is expected to make 6623bea8136Seric ** the address relative to the other end. 6635dfc646bSeric */ 6645dfc646bSeric 66578442df3Seric /* rewrite from address, using rewriting rules */ 666efe54562Seric rcode = EX_OK; 667efe54562Seric (void) strcpy(rpathbuf, remotename(e->e_from.q_paddr, m, 668efe54562Seric RF_SENDERADDR|RF_CANONICAL, 669efe54562Seric &rcode, e)); 670ee4b0922Seric define('g', rpathbuf, e); /* translated return path */ 671588cad61Seric define('h', host, e); /* to host */ 6725dfc646bSeric Errors = 0; 6735dfc646bSeric pvp = pv; 6745dfc646bSeric *pvp++ = m->m_argv[0]; 6755dfc646bSeric 6765dfc646bSeric /* insert -f or -r flag as appropriate */ 67757fc6f17Seric if (FromFlag && (bitnset(M_FOPT, m->m_flags) || bitnset(M_ROPT, m->m_flags))) 6785dfc646bSeric { 67957fc6f17Seric if (bitnset(M_FOPT, m->m_flags)) 6805dfc646bSeric *pvp++ = "-f"; 6815dfc646bSeric else 6825dfc646bSeric *pvp++ = "-r"; 683c23ed322Seric *pvp++ = newstr(rpathbuf); 6845dfc646bSeric } 6855dfc646bSeric 6865dfc646bSeric /* 6875dfc646bSeric ** Append the other fixed parts of the argv. These run 6885dfc646bSeric ** up to the first entry containing "$u". There can only 6895dfc646bSeric ** be one of these, and there are only a few more slots 6905dfc646bSeric ** in the pv after it. 6915dfc646bSeric */ 6925dfc646bSeric 6935dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 6945dfc646bSeric { 6952bc47524Seric /* can't use strchr here because of sign extension problems */ 6962bc47524Seric while (*p != '\0') 6972bc47524Seric { 6982bc47524Seric if ((*p++ & 0377) == MACROEXPAND) 6992bc47524Seric { 7002bc47524Seric if (*p == 'u') 7015dfc646bSeric break; 7022bc47524Seric } 7032bc47524Seric } 7042bc47524Seric 7052bc47524Seric if (*p != '\0') 7065dfc646bSeric break; 7075dfc646bSeric 7085dfc646bSeric /* this entry is safe -- go ahead and process it */ 709588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 7105dfc646bSeric *pvp++ = newstr(buf); 7115dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 7125dfc646bSeric { 71308b25121Seric syserr("554 Too many parameters to %s before $u", pv[0]); 7145dfc646bSeric return (-1); 7155dfc646bSeric } 7165dfc646bSeric } 717c579ef51Seric 71833db8731Seric /* 71933db8731Seric ** If we have no substitution for the user name in the argument 72033db8731Seric ** list, we know that we must supply the names otherwise -- and 72133db8731Seric ** SMTP is the answer!! 72233db8731Seric */ 72333db8731Seric 7245dfc646bSeric if (*mvp == NULL) 725c579ef51Seric { 726c579ef51Seric /* running SMTP */ 7272c7e1b8dSeric # ifdef SMTP 728c579ef51Seric clever = TRUE; 729c579ef51Seric *pvp = NULL; 7306c2c3107Seric # else /* SMTP */ 73133db8731Seric /* oops! we don't implement SMTP */ 732df106f0bSeric syserr("554 SMTP style mailer not implemented"); 7332c7e1b8dSeric return (EX_SOFTWARE); 7346c2c3107Seric # endif /* SMTP */ 735c579ef51Seric } 7365dfc646bSeric 7375dfc646bSeric /* 7385dfc646bSeric ** At this point *mvp points to the argument with $u. We 7395dfc646bSeric ** run through our address list and append all the addresses 7405dfc646bSeric ** we can. If we run out of space, do not fret! We can 7415dfc646bSeric ** always send another copy later. 7425dfc646bSeric */ 7435dfc646bSeric 7445dfc646bSeric tobuf[0] = '\0'; 745588cad61Seric e->e_to = tobuf; 7466259796dSeric ctladdr = NULL; 747e103b48fSeric firstsig = hostsignature(firstto->q_mailer, firstto->q_host, e); 7485dfc646bSeric for (; to != NULL; to = to->q_next) 7495dfc646bSeric { 7505dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 75157fc6f17Seric if (tobuf[0] != '\0' && !bitnset(M_MUSER, m->m_flags)) 7525dfc646bSeric break; 7535dfc646bSeric 7545dfc646bSeric /* if already sent or not for this host, don't send */ 755ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 756e103b48fSeric to->q_mailer != firstto->q_mailer || 757e103b48fSeric strcmp(hostsignature(to->q_mailer, to->q_host, e), firstsig) != 0) 7585dfc646bSeric continue; 7596259796dSeric 7604b22ea87Seric /* avoid overflowing tobuf */ 761aa50a568Sbostic if (sizeof tobuf < (strlen(to->q_paddr) + strlen(tobuf) + 2)) 7624b22ea87Seric break; 7634b22ea87Seric 7646ef48975Seric if (tTd(10, 1)) 765772e6e50Seric { 766772e6e50Seric printf("\nsend to "); 767772e6e50Seric printaddr(to, FALSE); 768772e6e50Seric } 769772e6e50Seric 7706259796dSeric /* compute effective uid/gid when sending */ 7710ed512e3Seric if (bitnset(M_RUNASRCPT, to->q_mailer->m_flags)) 7726259796dSeric ctladdr = getctladdr(to); 7736259796dSeric 7745dfc646bSeric user = to->q_user; 775588cad61Seric e->e_to = to->q_paddr; 77675f1ade9Seric if (tTd(10, 5)) 77775f1ade9Seric { 77875f1ade9Seric printf("deliver: QDONTSEND "); 77975f1ade9Seric printaddr(to, FALSE); 78075f1ade9Seric } 781ee4b0922Seric to->q_flags |= QDONTSEND; 7825dfc646bSeric 7835dfc646bSeric /* 7845dfc646bSeric ** Check to see that these people are allowed to 7855dfc646bSeric ** talk to each other. 7862a6e0786Seric */ 7872a6e0786Seric 78869582d2fSeric if (m->m_maxsize != 0 && e->e_msgsize > m->m_maxsize) 78969582d2fSeric { 7900ed512e3Seric e->e_flags |= EF_NORETURN; 79108b25121Seric usrerr("552 Message is too large; %ld bytes max", m->m_maxsize); 7924dee0003Seric giveresponse(EX_UNAVAILABLE, m, NULL, ctladdr, e); 79369582d2fSeric continue; 79469582d2fSeric } 7959bfcea71Seric #if NAMED_BIND 7969bfcea71Seric h_errno = 0; 7979bfcea71Seric #endif 798fabb3bd4Seric rcode = checkcompat(to, e); 7991793c9c5Seric if (rcode != EX_OK) 8005dfc646bSeric { 8011000c37aSeric markfailure(e, to, rcode); 8024dee0003Seric giveresponse(rcode, m, NULL, ctladdr, e); 8035dfc646bSeric continue; 8045dfc646bSeric } 8052a6e0786Seric 8062a6e0786Seric /* 8079ec9501bSeric ** Strip quote bits from names if the mailer is dumb 8089ec9501bSeric ** about them. 80925a99e2eSeric */ 81025a99e2eSeric 81157fc6f17Seric if (bitnset(M_STRIPQ, m->m_flags)) 81225a99e2eSeric { 8131d8f1806Seric stripquotes(user); 8141d8f1806Seric stripquotes(host); 81525a99e2eSeric } 81625a99e2eSeric 817cdb828c5Seric /* hack attack -- delivermail compatibility */ 818cdb828c5Seric if (m == ProgMailer && *user == '|') 819cdb828c5Seric user++; 820cdb828c5Seric 82125a99e2eSeric /* 8223efaed6eSeric ** If an error message has already been given, don't 8233efaed6eSeric ** bother to send to this address. 8243efaed6eSeric ** 8253efaed6eSeric ** >>>>>>>>>> This clause assumes that the local mailer 8263efaed6eSeric ** >> NOTE >> cannot do any further aliasing; that 8273efaed6eSeric ** >>>>>>>>>> function is subsumed by sendmail. 8283efaed6eSeric */ 8293efaed6eSeric 8306cae517dSeric if (bitset(QBADADDR|QQUEUEUP, to->q_flags)) 8313efaed6eSeric continue; 8323efaed6eSeric 833f2fec898Seric /* save statistics.... */ 834588cad61Seric markstats(e, to); 835f2fec898Seric 8363efaed6eSeric /* 83725a99e2eSeric ** See if this user name is "special". 83825a99e2eSeric ** If the user name has a slash in it, assume that this 83951552439Seric ** is a file -- send it off without further ado. Note 84051552439Seric ** that this type of addresses is not processed along 84151552439Seric ** with the others, so we fudge on the To person. 84225a99e2eSeric */ 84325a99e2eSeric 8442c017f8dSeric if (m == FileMailer) 84525a99e2eSeric { 84603463a75Seric rcode = mailfile(user, ctladdr, e); 84703463a75Seric giveresponse(rcode, m, NULL, ctladdr, e); 848dde5acadSeric if (rcode == EX_OK) 849dde5acadSeric to->q_flags |= QSENT; 8505dfc646bSeric continue; 85125a99e2eSeric } 85225a99e2eSeric 85313bbc08cSeric /* 85413bbc08cSeric ** Address is verified -- add this user to mailer 85513bbc08cSeric ** argv, and add it to the print list of recipients. 85613bbc08cSeric */ 85713bbc08cSeric 858508daeccSeric /* link together the chain of recipients */ 859508daeccSeric to->q_tchain = tochain; 860508daeccSeric tochain = to; 861508daeccSeric 8625dfc646bSeric /* create list of users for error messages */ 863db8841e9Seric (void) strcat(tobuf, ","); 864db8841e9Seric (void) strcat(tobuf, to->q_paddr); 865588cad61Seric define('u', user, e); /* to user */ 866b6f89e6eSeric p = to->q_home; 867b6f89e6eSeric if (p == NULL && ctladdr != NULL) 868b6f89e6eSeric p = ctladdr->q_home; 869b6f89e6eSeric define('z', p, e); /* user's home */ 8705dfc646bSeric 871c579ef51Seric /* 872508daeccSeric ** Expand out this user into argument list. 873c579ef51Seric */ 874c579ef51Seric 875508daeccSeric if (!clever) 876c579ef51Seric { 877588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8785dfc646bSeric *pvp++ = newstr(buf); 8795dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 8805dfc646bSeric { 8815dfc646bSeric /* allow some space for trailing parms */ 8825dfc646bSeric break; 8835dfc646bSeric } 8845dfc646bSeric } 885c579ef51Seric } 8865dfc646bSeric 887145b49b1Seric /* see if any addresses still exist */ 888145b49b1Seric if (tobuf[0] == '\0') 889c579ef51Seric { 890588cad61Seric define('g', (char *) NULL, e); 891145b49b1Seric return (0); 892c579ef51Seric } 893145b49b1Seric 8945dfc646bSeric /* print out messages as full list */ 89563780dbdSeric e->e_to = tobuf + 1; 8965dfc646bSeric 8975dfc646bSeric /* 8985dfc646bSeric ** Fill out any parameters after the $u parameter. 8995dfc646bSeric */ 9005dfc646bSeric 901c579ef51Seric while (!clever && *++mvp != NULL) 9025dfc646bSeric { 903588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 9045dfc646bSeric *pvp++ = newstr(buf); 9055dfc646bSeric if (pvp >= &pv[MAXPV]) 90608b25121Seric syserr("554 deliver: pv overflow after $u for %s", pv[0]); 9075dfc646bSeric } 9085dfc646bSeric *pvp++ = NULL; 9095dfc646bSeric 91025a99e2eSeric /* 91125a99e2eSeric ** Call the mailer. 9126328bdf7Seric ** The argument vector gets built, pipes 91325a99e2eSeric ** are created as necessary, and we fork & exec as 9146328bdf7Seric ** appropriate. 915c579ef51Seric ** If we are running SMTP, we just need to clean up. 91625a99e2eSeric */ 91725a99e2eSeric 918960e665aSeric /*XXX this seems a bit wierd */ 9194899f6b5Seric if (ctladdr == NULL && m != ProgMailer && 9204899f6b5Seric bitset(QGOODUID, e->e_from.q_flags)) 921960e665aSeric ctladdr = &e->e_from; 922960e665aSeric 9239d4a8008Seric #if NAMED_BIND 9242bcc6d2dSeric if (ConfigLevel < 2) 925912a731aSbostic _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 926134746fbSeric #endif 9279c9e68d9Seric 9289c9e68d9Seric if (tTd(11, 1)) 929134746fbSeric { 9309c9e68d9Seric printf("openmailer:"); 9319c9e68d9Seric printav(pv); 9329c9e68d9Seric } 9339c9e68d9Seric errno = 0; 9349bfcea71Seric #if NAMED_BIND 9359bfcea71Seric h_errno = 0; 9369bfcea71Seric #endif 9379c9e68d9Seric 9389c9e68d9Seric CurHostName = m->m_mailer; 9399c9e68d9Seric 9409c9e68d9Seric /* 9419c9e68d9Seric ** Deal with the special case of mail handled through an IPC 9429c9e68d9Seric ** connection. 9439c9e68d9Seric ** In this case we don't actually fork. We must be 9449c9e68d9Seric ** running SMTP for this to work. We will return a 9459c9e68d9Seric ** zero pid to indicate that we are running IPC. 9469c9e68d9Seric ** We also handle a debug version that just talks to stdin/out. 9479c9e68d9Seric */ 9489c9e68d9Seric 9499c9e68d9Seric curhost = NULL; 950c931b82bSeric SmtpPhase = NULL; 951df106f0bSeric mci = NULL; 9529c9e68d9Seric 9537febfd66Seric #ifdef XDEBUG 9547febfd66Seric { 9557febfd66Seric char wbuf[MAXLINE]; 9567febfd66Seric 9577febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 9587febfd66Seric sprintf(wbuf, "%s... openmailer(%s)", e->e_to, m->m_name); 9597febfd66Seric checkfd012(wbuf); 9607febfd66Seric } 9617febfd66Seric #endif 9627febfd66Seric 963cc7496f5Seric /* check for 8-bit available */ 964cc7496f5Seric if (bitset(EF_HAS8BIT, e->e_flags) && 965cc7496f5Seric bitnset(M_7BITS, m->m_flags) && 966cc7496f5Seric !bitset(MM_MIME8BIT, MimeMode)) 967cc7496f5Seric { 968cc7496f5Seric usrerr("554 Cannot send 8-bit data to 7-bit destination"); 969cc7496f5Seric rcode = EX_DATAERR; 970cc7496f5Seric goto give_up; 971cc7496f5Seric } 972cc7496f5Seric 9739c9e68d9Seric /* check for Local Person Communication -- not for mortals!!! */ 9749c9e68d9Seric if (strcmp(m->m_mailer, "[LPC]") == 0) 9759c9e68d9Seric { 9769c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 9779c9e68d9Seric bzero((char *) mci, sizeof *mci); 9789c9e68d9Seric mci->mci_in = stdin; 9799c9e68d9Seric mci->mci_out = stdout; 9809c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 9819c9e68d9Seric mci->mci_mailer = m; 9829c9e68d9Seric } 9839c9e68d9Seric else if (strcmp(m->m_mailer, "[IPC]") == 0 || 9849c9e68d9Seric strcmp(m->m_mailer, "[TCP]") == 0) 9859c9e68d9Seric { 9869c9e68d9Seric #ifdef DAEMON 9879c9e68d9Seric register int i; 9889c9e68d9Seric register u_short port; 9899c9e68d9Seric 990a5d44642Seric if (pv[0] == NULL || pv[1] == NULL || pv[1][0] == '\0') 991a5d44642Seric { 992a5d44642Seric syserr("null host name for %s mailer", m->m_mailer); 993a5d44642Seric rcode = EX_CONFIG; 994a5d44642Seric goto give_up; 995a5d44642Seric } 996a5d44642Seric 9979c9e68d9Seric CurHostName = pv[1]; 9989c9e68d9Seric curhost = hostsignature(m, pv[1], e); 9999c9e68d9Seric 10009c9e68d9Seric if (curhost == NULL || curhost[0] == '\0') 10019c9e68d9Seric { 1002a5d44642Seric syserr("null host signature for %s", pv[1]); 1003dfebe401Seric rcode = EX_CONFIG; 1004b31e7f2bSeric goto give_up; 1005b31e7f2bSeric } 10069c9e68d9Seric 10079c9e68d9Seric if (!clever) 10089c9e68d9Seric { 10099c9e68d9Seric syserr("554 non-clever IPC"); 1010df106f0bSeric rcode = EX_CONFIG; 10119c9e68d9Seric goto give_up; 10129c9e68d9Seric } 10139c9e68d9Seric if (pv[2] != NULL) 10149c9e68d9Seric port = atoi(pv[2]); 10159c9e68d9Seric else 10169c9e68d9Seric port = 0; 10179c9e68d9Seric tryhost: 10189c9e68d9Seric while (*curhost != '\0') 10199c9e68d9Seric { 10209c9e68d9Seric register char *p; 10219c9e68d9Seric static char hostbuf[MAXNAME]; 10229c9e68d9Seric 10239c9e68d9Seric /* pull the next host from the signature */ 10249c9e68d9Seric p = strchr(curhost, ':'); 10259c9e68d9Seric if (p == NULL) 10269c9e68d9Seric p = &curhost[strlen(curhost)]; 1027df106f0bSeric if (p == curhost) 1028df106f0bSeric { 1029df106f0bSeric syserr("deliver: null host name in signature"); 10308087428aSeric curhost++; 1031df106f0bSeric continue; 1032df106f0bSeric } 10339c9e68d9Seric strncpy(hostbuf, curhost, p - curhost); 10349c9e68d9Seric hostbuf[p - curhost] = '\0'; 10359c9e68d9Seric if (*p != '\0') 10369c9e68d9Seric p++; 10379c9e68d9Seric curhost = p; 10389c9e68d9Seric 10399c9e68d9Seric /* see if we already know that this host is fried */ 10409c9e68d9Seric CurHostName = hostbuf; 10419c9e68d9Seric mci = mci_get(hostbuf, m); 10429c9e68d9Seric if (mci->mci_state != MCIS_CLOSED) 10439c9e68d9Seric { 10449c9e68d9Seric if (tTd(11, 1)) 10459c9e68d9Seric { 10469c9e68d9Seric printf("openmailer: "); 10474052916eSeric mci_dump(mci, FALSE); 10489c9e68d9Seric } 10499c9e68d9Seric CurHostName = mci->mci_host; 10509c9e68d9Seric break; 10519c9e68d9Seric } 10529c9e68d9Seric mci->mci_mailer = m; 10539c9e68d9Seric if (mci->mci_exitstat != EX_OK) 10549c9e68d9Seric continue; 10559c9e68d9Seric 10569c9e68d9Seric /* try the connection */ 10579c9e68d9Seric setproctitle("%s %s: %s", e->e_id, hostbuf, "user open"); 10589c9e68d9Seric message("Connecting to %s (%s)...", 10599c9e68d9Seric hostbuf, m->m_name); 10609c9e68d9Seric i = makeconnection(hostbuf, port, mci, 10619c9e68d9Seric bitnset(M_SECURE_PORT, m->m_flags)); 10629c9e68d9Seric mci->mci_exitstat = i; 10639c9e68d9Seric mci->mci_errno = errno; 10649d4a8008Seric #if NAMED_BIND 1065f170942cSeric mci->mci_herrno = h_errno; 1066f170942cSeric #endif 10679c9e68d9Seric if (i == EX_OK) 10689c9e68d9Seric { 10699c9e68d9Seric mci->mci_state = MCIS_OPENING; 10709c9e68d9Seric mci_cache(mci); 1071f170942cSeric if (TrafficLogFile != NULL) 1072f170942cSeric fprintf(TrafficLogFile, "%05d == CONNECT %s\n", 1073f170942cSeric getpid(), hostbuf); 10749c9e68d9Seric break; 10759c9e68d9Seric } 10769c9e68d9Seric else if (tTd(11, 1)) 10779c9e68d9Seric printf("openmailer: makeconnection => stat=%d, errno=%d\n", 10789c9e68d9Seric i, errno); 10799c9e68d9Seric 10809c9e68d9Seric /* enter status of this host */ 10819c9e68d9Seric setstat(i); 1082df106f0bSeric 1083df106f0bSeric /* should print some message here for -v mode */ 1084df106f0bSeric } 1085df106f0bSeric if (mci == NULL) 1086df106f0bSeric { 1087df106f0bSeric syserr("deliver: no host name"); 1088df106f0bSeric rcode = EX_OSERR; 1089df106f0bSeric goto give_up; 10909c9e68d9Seric } 10919c9e68d9Seric mci->mci_pid = 0; 10929c9e68d9Seric #else /* no DAEMON */ 10939c9e68d9Seric syserr("554 openmailer: no IPC"); 10949c9e68d9Seric if (tTd(11, 1)) 10959c9e68d9Seric printf("openmailer: NULL\n"); 1096df106f0bSeric rcode = EX_UNAVAILABLE; 1097df106f0bSeric goto give_up; 10989c9e68d9Seric #endif /* DAEMON */ 10999c9e68d9Seric } 11009c9e68d9Seric else 11019c9e68d9Seric { 1102f170942cSeric if (TrafficLogFile != NULL) 11030e3bfef5Seric { 1104f170942cSeric char **av; 1105f170942cSeric 1106f170942cSeric fprintf(TrafficLogFile, "%05d === EXEC", getpid()); 1107f170942cSeric for (av = pv; *av != NULL; av++) 1108f170942cSeric fprintf(TrafficLogFile, " %s", *av); 1109f170942cSeric fprintf(TrafficLogFile, "\n"); 11106fe8c3bcSeric } 11116fe8c3bcSeric 11129c9e68d9Seric /* create a pipe to shove the mail through */ 11139c9e68d9Seric if (pipe(mpvect) < 0) 11149c9e68d9Seric { 11150e3bfef5Seric syserr("%s... openmailer(%s): pipe (to mailer)", 11160e3bfef5Seric e->e_to, m->m_name); 11179c9e68d9Seric if (tTd(11, 1)) 11189c9e68d9Seric printf("openmailer: NULL\n"); 11199c9e68d9Seric rcode = EX_OSERR; 11209c9e68d9Seric goto give_up; 11219c9e68d9Seric } 11229c9e68d9Seric 11239c9e68d9Seric /* if this mailer speaks smtp, create a return pipe */ 11249c9e68d9Seric if (clever && pipe(rpvect) < 0) 11259c9e68d9Seric { 11260e3bfef5Seric syserr("%s... openmailer(%s): pipe (from mailer)", 11270e3bfef5Seric e->e_to, m->m_name); 11289c9e68d9Seric (void) close(mpvect[0]); 11299c9e68d9Seric (void) close(mpvect[1]); 11309c9e68d9Seric if (tTd(11, 1)) 11319c9e68d9Seric printf("openmailer: NULL\n"); 11329c9e68d9Seric rcode = EX_OSERR; 11339c9e68d9Seric goto give_up; 11349c9e68d9Seric } 11359c9e68d9Seric 11369c9e68d9Seric /* 11379c9e68d9Seric ** Actually fork the mailer process. 11389c9e68d9Seric ** DOFORK is clever about retrying. 11399c9e68d9Seric ** 11409c9e68d9Seric ** Dispose of SIGCHLD signal catchers that may be laying 11419c9e68d9Seric ** around so that endmail will get it. 11429c9e68d9Seric */ 11439c9e68d9Seric 11449c9e68d9Seric if (e->e_xfp != NULL) 11459c9e68d9Seric (void) fflush(e->e_xfp); /* for debugging */ 11469c9e68d9Seric (void) fflush(stdout); 11479c9e68d9Seric # ifdef SIGCHLD 11482b9178d3Seric (void) setsignal(SIGCHLD, SIG_DFL); 11499c9e68d9Seric # endif /* SIGCHLD */ 11509c9e68d9Seric DOFORK(FORK); 11519c9e68d9Seric /* pid is set by DOFORK */ 11529c9e68d9Seric if (pid < 0) 11539c9e68d9Seric { 11549c9e68d9Seric /* failure */ 11550e3bfef5Seric syserr("%s... openmailer(%s): cannot fork", 11560e3bfef5Seric e->e_to, m->m_name); 11579c9e68d9Seric (void) close(mpvect[0]); 11589c9e68d9Seric (void) close(mpvect[1]); 11599c9e68d9Seric if (clever) 11609c9e68d9Seric { 11619c9e68d9Seric (void) close(rpvect[0]); 11629c9e68d9Seric (void) close(rpvect[1]); 11639c9e68d9Seric } 11649c9e68d9Seric if (tTd(11, 1)) 11659c9e68d9Seric printf("openmailer: NULL\n"); 11669c9e68d9Seric rcode = EX_OSERR; 11679c9e68d9Seric goto give_up; 11689c9e68d9Seric } 11699c9e68d9Seric else if (pid == 0) 11709c9e68d9Seric { 11719c9e68d9Seric int i; 11729c9e68d9Seric int saveerrno; 11739c9e68d9Seric char **ep; 11749c9e68d9Seric char *env[MAXUSERENVIRON]; 11759c9e68d9Seric extern char **environ; 11769c9e68d9Seric extern int DtableSize; 11779c9e68d9Seric 11789c9e68d9Seric /* child -- set up input & exec mailer */ 11792b9178d3Seric (void) setsignal(SIGINT, SIG_IGN); 11802b9178d3Seric (void) setsignal(SIGHUP, SIG_IGN); 11812b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 11829c9e68d9Seric 118344f2317fSeric /* reset user and group */ 1184acc57dbfSeric if (bitnset(M_SPECIFIC_UID, m->m_flags)) 1185acc57dbfSeric { 1186acc57dbfSeric (void) setgid(m->m_gid); 1187acc57dbfSeric (void) setuid(m->m_uid); 1188acc57dbfSeric } 1189ab9cdf66Seric else if (ctladdr != NULL && ctladdr->q_uid != 0) 119044f2317fSeric { 119144f2317fSeric (void) initgroups(ctladdr->q_ruser? 119244f2317fSeric ctladdr->q_ruser: ctladdr->q_user, 119344f2317fSeric ctladdr->q_gid); 119451cfe111Seric (void) setgid(ctladdr->q_gid); 119544f2317fSeric (void) setuid(ctladdr->q_uid); 119644f2317fSeric } 1197ab9cdf66Seric else 1198ab9cdf66Seric { 1199ab9cdf66Seric (void) initgroups(DefUser, DefGid); 1200ab9cdf66Seric if (m->m_gid == 0) 1201ab9cdf66Seric (void) setgid(DefGid); 1202ab9cdf66Seric else 1203ab9cdf66Seric (void) setgid(m->m_gid); 1204ab9cdf66Seric if (m->m_uid == 0) 1205ab9cdf66Seric (void) setuid(DefUid); 1206ab9cdf66Seric else 1207ab9cdf66Seric (void) setuid(m->m_uid); 120844f2317fSeric } 120944f2317fSeric 121044f2317fSeric if (tTd(11, 2)) 121144f2317fSeric printf("openmailer: running as r/euid=%d/%d\n", 121244f2317fSeric getuid(), geteuid()); 121344f2317fSeric 1214b986f6aaSeric /* move into some "safe" directory */ 1215b986f6aaSeric if (m->m_execdir != NULL) 1216b986f6aaSeric { 1217b986f6aaSeric char *p, *q; 1218b986f6aaSeric char buf[MAXLINE]; 1219b986f6aaSeric 1220b986f6aaSeric for (p = m->m_execdir; p != NULL; p = q) 1221b986f6aaSeric { 1222b986f6aaSeric q = strchr(p, ':'); 1223b986f6aaSeric if (q != NULL) 1224b986f6aaSeric *q = '\0'; 1225b986f6aaSeric expand(p, buf, &buf[sizeof buf] - 1, e); 1226b986f6aaSeric if (q != NULL) 1227b986f6aaSeric *q++ = ':'; 1228b986f6aaSeric if (tTd(11, 20)) 1229b986f6aaSeric printf("openmailer: trydir %s\n", 1230b986f6aaSeric buf); 1231b986f6aaSeric if (buf[0] != '\0' && chdir(buf) >= 0) 1232b986f6aaSeric break; 1233b986f6aaSeric } 1234b986f6aaSeric } 1235b986f6aaSeric 12369c9e68d9Seric /* arrange to filter std & diag output of command */ 12379c9e68d9Seric if (clever) 12389c9e68d9Seric { 12399c9e68d9Seric (void) close(rpvect[0]); 12406fe8c3bcSeric if (dup2(rpvect[1], STDOUT_FILENO) < 0) 12416fe8c3bcSeric { 12420e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdout", 12430e3bfef5Seric e->e_to, m->m_name, rpvect[1]); 12446fe8c3bcSeric _exit(EX_OSERR); 12456fe8c3bcSeric } 12469c9e68d9Seric (void) close(rpvect[1]); 12479c9e68d9Seric } 12488b40b0a4Seric else if (OpMode == MD_SMTP || OpMode == MD_DAEMON || 12498b40b0a4Seric HoldErrs || DisConnected) 12509c9e68d9Seric { 12519c9e68d9Seric /* put mailer output in transcript */ 12526fe8c3bcSeric if (dup2(fileno(e->e_xfp), STDOUT_FILENO) < 0) 12536fe8c3bcSeric { 12540e3bfef5Seric syserr("%s... openmailer(%s): cannot dup xscript %d for stdout", 12550e3bfef5Seric e->e_to, m->m_name, 12566fe8c3bcSeric fileno(e->e_xfp)); 12576fe8c3bcSeric _exit(EX_OSERR); 12589c9e68d9Seric } 12596fe8c3bcSeric } 12606fe8c3bcSeric if (dup2(STDOUT_FILENO, STDERR_FILENO) < 0) 12616fe8c3bcSeric { 12620e3bfef5Seric syserr("%s... openmailer(%s): cannot dup stdout for stderr", 12630e3bfef5Seric e->e_to, m->m_name); 12646fe8c3bcSeric _exit(EX_OSERR); 12656fe8c3bcSeric } 12669c9e68d9Seric 12679c9e68d9Seric /* arrange to get standard input */ 12689c9e68d9Seric (void) close(mpvect[1]); 12699c9e68d9Seric if (dup2(mpvect[0], STDIN_FILENO) < 0) 12709c9e68d9Seric { 12710e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdin", 12720e3bfef5Seric e->e_to, m->m_name, mpvect[0]); 12739c9e68d9Seric _exit(EX_OSERR); 12749c9e68d9Seric } 12759c9e68d9Seric (void) close(mpvect[0]); 12769c9e68d9Seric 12779c9e68d9Seric /* arrange for all the files to be closed */ 12789c9e68d9Seric for (i = 3; i < DtableSize; i++) 12799c9e68d9Seric { 12809c9e68d9Seric register int j; 128144f2317fSeric 12829c9e68d9Seric if ((j = fcntl(i, F_GETFD, 0)) != -1) 12839c9e68d9Seric (void) fcntl(i, F_SETFD, j | 1); 12849c9e68d9Seric } 12859c9e68d9Seric 12869f9b003eSeric /* 12879f9b003eSeric ** Set up the mailer environment 12889f9b003eSeric ** TZ is timezone information. 12899f9b003eSeric ** SYSTYPE is Apollo software sys type (required). 12909f9b003eSeric ** ISP is Apollo hardware system type (required). 12919f9b003eSeric */ 12929f9b003eSeric 12939c9e68d9Seric i = 0; 12949c9e68d9Seric env[i++] = "AGENT=sendmail"; 12959c9e68d9Seric for (ep = environ; *ep != NULL; ep++) 12969c9e68d9Seric { 12979f9b003eSeric if (strncmp(*ep, "TZ=", 3) == 0 || 12989f9b003eSeric strncmp(*ep, "ISP=", 4) == 0 || 12999f9b003eSeric strncmp(*ep, "SYSTYPE=", 8) == 0) 13009c9e68d9Seric env[i++] = *ep; 13019c9e68d9Seric } 13029c9e68d9Seric env[i++] = NULL; 13039c9e68d9Seric 1304929277f2Seric /* run disconnected from terminal */ 1305929277f2Seric (void) setsid(); 1306929277f2Seric 13079c9e68d9Seric /* try to execute the mailer */ 13089c9e68d9Seric execve(m->m_mailer, pv, env); 13099c9e68d9Seric saveerrno = errno; 13109c9e68d9Seric syserr("Cannot exec %s", m->m_mailer); 13110ed512e3Seric if (bitnset(M_LOCALMAILER, m->m_flags) || 13120ed512e3Seric transienterror(saveerrno)) 13137c941fd2Seric _exit(EX_OSERR); 13149c9e68d9Seric _exit(EX_UNAVAILABLE); 13159c9e68d9Seric } 13169c9e68d9Seric 13179c9e68d9Seric /* 13189c9e68d9Seric ** Set up return value. 13199c9e68d9Seric */ 13209c9e68d9Seric 13219c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 13229c9e68d9Seric bzero((char *) mci, sizeof *mci); 13239c9e68d9Seric mci->mci_mailer = m; 13249c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 13259c9e68d9Seric mci->mci_pid = pid; 13269c9e68d9Seric (void) close(mpvect[0]); 13279c9e68d9Seric mci->mci_out = fdopen(mpvect[1], "w"); 1328335eae58Seric if (mci->mci_out == NULL) 1329335eae58Seric { 1330335eae58Seric syserr("deliver: cannot create mailer output channel, fd=%d", 1331335eae58Seric mpvect[1]); 1332335eae58Seric (void) close(mpvect[1]); 1333335eae58Seric if (clever) 1334335eae58Seric { 1335335eae58Seric (void) close(rpvect[0]); 1336335eae58Seric (void) close(rpvect[1]); 1337335eae58Seric } 1338335eae58Seric rcode = EX_OSERR; 1339335eae58Seric goto give_up; 1340335eae58Seric } 13419c9e68d9Seric if (clever) 13429c9e68d9Seric { 13439c9e68d9Seric (void) close(rpvect[1]); 13449c9e68d9Seric mci->mci_in = fdopen(rpvect[0], "r"); 1345335eae58Seric if (mci->mci_in == NULL) 1346335eae58Seric { 1347335eae58Seric syserr("deliver: cannot create mailer input channel, fd=%d", 1348335eae58Seric mpvect[1]); 1349335eae58Seric (void) close(rpvect[0]); 1350335eae58Seric fclose(mci->mci_out); 1351335eae58Seric mci->mci_out = NULL; 1352335eae58Seric rcode = EX_OSERR; 1353335eae58Seric goto give_up; 1354335eae58Seric } 13559c9e68d9Seric } 13569c9e68d9Seric else 13579c9e68d9Seric { 13589c9e68d9Seric mci->mci_flags |= MCIF_TEMP; 13599c9e68d9Seric mci->mci_in = NULL; 13609c9e68d9Seric } 13619c9e68d9Seric } 13629c9e68d9Seric 1363cc7496f5Seric if (bitset(EF_HAS8BIT, e->e_flags) && bitnset(M_7BITS, m->m_flags)) 1364cc7496f5Seric mci->mci_flags |= MCIF_CVT8TO7; 1365cc7496f5Seric 13669c9e68d9Seric /* 13679c9e68d9Seric ** If we are in SMTP opening state, send initial protocol. 13689c9e68d9Seric */ 13699c9e68d9Seric 13709c9e68d9Seric if (clever && mci->mci_state != MCIS_CLOSED) 13719c9e68d9Seric { 13729c9e68d9Seric smtpinit(m, mci, e); 13739c9e68d9Seric } 13749c9e68d9Seric if (tTd(11, 1)) 13759c9e68d9Seric { 13769c9e68d9Seric printf("openmailer: "); 13774052916eSeric mci_dump(mci, FALSE); 13789c9e68d9Seric } 13799c9e68d9Seric 13809c9e68d9Seric if (mci->mci_state != MCIS_OPEN) 1381b31e7f2bSeric { 1382b31e7f2bSeric /* couldn't open the mailer */ 1383b31e7f2bSeric rcode = mci->mci_exitstat; 13842a6bc25bSeric errno = mci->mci_errno; 13859d4a8008Seric #if NAMED_BIND 1386f170942cSeric h_errno = mci->mci_herrno; 1387f170942cSeric #endif 1388b31e7f2bSeric if (rcode == EX_OK) 1389b31e7f2bSeric { 1390b31e7f2bSeric /* shouldn't happen */ 139108b25121Seric syserr("554 deliver: rcode=%d, mci_state=%d, sig=%s", 13926b0f339dSeric rcode, mci->mci_state, firstsig); 1393b31e7f2bSeric rcode = EX_SOFTWARE; 1394b31e7f2bSeric } 1395cb082c5bSeric else if (rcode == EX_TEMPFAIL && curhost != NULL && *curhost != '\0') 139690891494Seric { 139790891494Seric /* try next MX site */ 139890891494Seric goto tryhost; 139990891494Seric } 1400b31e7f2bSeric } 1401b31e7f2bSeric else if (!clever) 1402b31e7f2bSeric { 1403b31e7f2bSeric /* 1404b31e7f2bSeric ** Format and send message. 1405b31e7f2bSeric */ 140615d084d5Seric 14075aa0f353Seric putfromline(mci, e); 1408a6ce3008Seric (*e->e_puthdr)(mci, e->e_header, e); 14095aa0f353Seric (*e->e_putbody)(mci, e, NULL); 1410b31e7f2bSeric 1411b31e7f2bSeric /* get the exit status */ 1412c9be6216Seric rcode = endmailer(mci, e, pv); 1413134746fbSeric } 1414134746fbSeric else 1415b31e7f2bSeric #ifdef SMTP 1416134746fbSeric { 1417b31e7f2bSeric /* 1418b31e7f2bSeric ** Send the MAIL FROM: protocol 1419b31e7f2bSeric */ 142015d084d5Seric 1421b31e7f2bSeric rcode = smtpmailfrom(m, mci, e); 1422b31e7f2bSeric if (rcode == EX_OK) 142375889e88Seric { 1424ded0d3daSkarels register char *t = tobuf; 1425ded0d3daSkarels register int i; 1426ded0d3daSkarels 1427588cad61Seric /* send the recipient list */ 142863780dbdSeric tobuf[0] = '\0'; 142975889e88Seric for (to = tochain; to != NULL; to = to->q_tchain) 143075889e88Seric { 143163780dbdSeric e->e_to = to->q_paddr; 143215d084d5Seric if ((i = smtprcpt(to, m, mci, e)) != EX_OK) 143375889e88Seric { 143483b7ddc9Seric markfailure(e, to, i); 14354dee0003Seric giveresponse(i, m, mci, ctladdr, e); 143663780dbdSeric } 143775889e88Seric else 143875889e88Seric { 1439911693bfSbostic *t++ = ','; 1440b31e7f2bSeric for (p = to->q_paddr; *p; *t++ = *p++) 1441b31e7f2bSeric continue; 1442ee39df61Seric *t = '\0'; 1443588cad61Seric } 1444588cad61Seric } 1445588cad61Seric 144663780dbdSeric /* now send the data */ 144763780dbdSeric if (tobuf[0] == '\0') 1448b31e7f2bSeric { 14499c9e68d9Seric rcode = EX_OK; 145063780dbdSeric e->e_to = NULL; 1451b31e7f2bSeric if (bitset(MCIF_CACHED, mci->mci_flags)) 1452b31e7f2bSeric smtprset(m, mci, e); 1453b31e7f2bSeric } 145475889e88Seric else 145575889e88Seric { 145663780dbdSeric e->e_to = tobuf + 1; 145775889e88Seric rcode = smtpdata(m, mci, e); 145863780dbdSeric } 145963780dbdSeric 146063780dbdSeric /* now close the connection */ 1461b31e7f2bSeric if (!bitset(MCIF_CACHED, mci->mci_flags)) 146215d084d5Seric smtpquit(m, mci, e); 146363780dbdSeric } 1464cb082c5bSeric if (rcode != EX_OK && curhost != NULL && *curhost != '\0') 14659c9e68d9Seric { 14669c9e68d9Seric /* try next MX site */ 14679c9e68d9Seric goto tryhost; 14689c9e68d9Seric } 1469c579ef51Seric } 1470b31e7f2bSeric #else /* not SMTP */ 1471a05b3449Sbostic { 147208b25121Seric syserr("554 deliver: need SMTP compiled to use clever mailer"); 1473845e533cSeric rcode = EX_CONFIG; 1474b31e7f2bSeric goto give_up; 1475a05b3449Sbostic } 1476b31e7f2bSeric #endif /* SMTP */ 14779d4a8008Seric #if NAMED_BIND 14782bcc6d2dSeric if (ConfigLevel < 2) 1479912a731aSbostic _res.options |= RES_DEFNAMES | RES_DNSRCH; /* XXX */ 1480134746fbSeric #endif 14815dfc646bSeric 1482b31e7f2bSeric /* arrange a return receipt if requested */ 1483df106f0bSeric if (rcode == EX_OK && e->e_receiptto != NULL && 1484df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1485b31e7f2bSeric { 1486b31e7f2bSeric e->e_flags |= EF_SENDRECEIPT; 1487b31e7f2bSeric /* do we want to send back more info? */ 1488b31e7f2bSeric } 1489b31e7f2bSeric 1490c77d1c25Seric /* 149163780dbdSeric ** Do final status disposal. 149263780dbdSeric ** We check for something in tobuf for the SMTP case. 1493c77d1c25Seric ** If we got a temporary failure, arrange to queue the 1494c77d1c25Seric ** addressees. 1495c77d1c25Seric */ 1496c77d1c25Seric 1497b31e7f2bSeric give_up: 149863780dbdSeric if (tobuf[0] != '\0') 14994dee0003Seric giveresponse(rcode, m, mci, ctladdr, e); 1500772e6e50Seric for (to = tochain; to != NULL; to = to->q_tchain) 1501b31e7f2bSeric { 1502dde5acadSeric if (rcode != EX_OK) 150383b7ddc9Seric markfailure(e, to, rcode); 1504dde5acadSeric else 1505655518ecSeric { 1506dde5acadSeric to->q_flags |= QSENT; 1507655518ecSeric e->e_nsent++; 1508df106f0bSeric if (e->e_receiptto != NULL && 1509df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1510df106f0bSeric { 1511df106f0bSeric fprintf(e->e_xfp, "%s... Successfully delivered\n", 1512df106f0bSeric to->q_paddr); 1513df106f0bSeric } 1514655518ecSeric } 1515b31e7f2bSeric } 1516b31e7f2bSeric 1517b31e7f2bSeric /* 1518b31e7f2bSeric ** Restore state and return. 1519b31e7f2bSeric */ 1520c77d1c25Seric 15217febfd66Seric #ifdef XDEBUG 15227febfd66Seric { 15237febfd66Seric char wbuf[MAXLINE]; 15247febfd66Seric 15257febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 152644622ea3Seric sprintf(wbuf, "%s... end of deliver(%s)", 152744622ea3Seric e->e_to == NULL ? "NO-TO-LIST" : e->e_to, 152844622ea3Seric m->m_name); 15297febfd66Seric checkfd012(wbuf); 15307febfd66Seric } 15317febfd66Seric #endif 15327febfd66Seric 153335490626Seric errno = 0; 1534588cad61Seric define('g', (char *) NULL, e); 15355826d9d3Seric return (rcode); 153625a99e2eSeric } 15375dfc646bSeric /* 153883b7ddc9Seric ** MARKFAILURE -- mark a failure on a specific address. 153983b7ddc9Seric ** 154083b7ddc9Seric ** Parameters: 154183b7ddc9Seric ** e -- the envelope we are sending. 154283b7ddc9Seric ** q -- the address to mark. 154383b7ddc9Seric ** rcode -- the code signifying the particular failure. 154483b7ddc9Seric ** 154583b7ddc9Seric ** Returns: 154683b7ddc9Seric ** none. 154783b7ddc9Seric ** 154883b7ddc9Seric ** Side Effects: 154983b7ddc9Seric ** marks the address (and possibly the envelope) with the 155083b7ddc9Seric ** failure so that an error will be returned or 155183b7ddc9Seric ** the message will be queued, as appropriate. 155283b7ddc9Seric */ 155383b7ddc9Seric 155483b7ddc9Seric markfailure(e, q, rcode) 155583b7ddc9Seric register ENVELOPE *e; 155683b7ddc9Seric register ADDRESS *q; 155783b7ddc9Seric int rcode; 155883b7ddc9Seric { 155919c47125Seric char buf[MAXLINE]; 156019c47125Seric 1561d5aafa3cSeric switch (rcode) 1562d5aafa3cSeric { 1563d5aafa3cSeric case EX_OK: 1564d5aafa3cSeric break; 1565d5aafa3cSeric 1566d5aafa3cSeric case EX_TEMPFAIL: 1567d5aafa3cSeric case EX_IOERR: 1568d5aafa3cSeric case EX_OSERR: 156983b7ddc9Seric q->q_flags |= QQUEUEUP; 1570d5aafa3cSeric break; 1571d5aafa3cSeric 1572d5aafa3cSeric default: 1573f170942cSeric q->q_flags |= QBADADDR; 1574d5aafa3cSeric break; 1575d5aafa3cSeric } 157683b7ddc9Seric } 157783b7ddc9Seric /* 1578c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 1579c579ef51Seric ** 1580c579ef51Seric ** We should never get fatal errors (e.g., segmentation 1581c579ef51Seric ** violation), so we report those specially. For other 1582c579ef51Seric ** errors, we choose a status message (into statmsg), 1583c579ef51Seric ** and if it represents an error, we print it. 1584c579ef51Seric ** 1585c579ef51Seric ** Parameters: 1586c579ef51Seric ** pid -- pid of mailer. 1587c9be6216Seric ** e -- the current envelope. 1588c9be6216Seric ** pv -- the parameter vector that invoked the mailer 1589c9be6216Seric ** (for error messages). 1590c579ef51Seric ** 1591c579ef51Seric ** Returns: 1592c579ef51Seric ** exit code of mailer. 1593c579ef51Seric ** 1594c579ef51Seric ** Side Effects: 1595c579ef51Seric ** none. 1596c579ef51Seric */ 1597c579ef51Seric 1598c9be6216Seric endmailer(mci, e, pv) 1599b31e7f2bSeric register MCI *mci; 1600c9be6216Seric register ENVELOPE *e; 1601c9be6216Seric char **pv; 1602c579ef51Seric { 1603588cad61Seric int st; 1604c579ef51Seric 160575889e88Seric /* close any connections */ 160675889e88Seric if (mci->mci_in != NULL) 160776f3d53fSeric (void) xfclose(mci->mci_in, mci->mci_mailer->m_name, "mci_in"); 160875889e88Seric if (mci->mci_out != NULL) 160976f3d53fSeric (void) xfclose(mci->mci_out, mci->mci_mailer->m_name, "mci_out"); 161075889e88Seric mci->mci_in = mci->mci_out = NULL; 161175889e88Seric mci->mci_state = MCIS_CLOSED; 161275889e88Seric 161333db8731Seric /* in the IPC case there is nothing to wait for */ 161475889e88Seric if (mci->mci_pid == 0) 161533db8731Seric return (EX_OK); 161633db8731Seric 161733db8731Seric /* wait for the mailer process to die and collect status */ 161875889e88Seric st = waitfor(mci->mci_pid); 1619588cad61Seric if (st == -1) 162078de67c1Seric { 1621c9be6216Seric syserr("endmailer %s: wait", pv[0]); 1622588cad61Seric return (EX_SOFTWARE); 1623c579ef51Seric } 162433db8731Seric 1625bf9bc890Seric if (WIFEXITED(st)) 1626c579ef51Seric { 1627bf9bc890Seric /* normal death -- return status */ 1628bf9bc890Seric return (WEXITSTATUS(st)); 1629bf9bc890Seric } 1630bf9bc890Seric 1631bf9bc890Seric /* it died a horrid death */ 1632550092c3Seric syserr("451 mailer %s died with signal %o", 1633550092c3Seric mci->mci_mailer->m_name, st); 1634c9be6216Seric 1635c9be6216Seric /* log the arguments */ 16363c930db3Seric if (pv != NULL && e->e_xfp != NULL) 1637c9be6216Seric { 1638c9be6216Seric register char **av; 1639c9be6216Seric 1640c9be6216Seric fprintf(e->e_xfp, "Arguments:"); 1641c9be6216Seric for (av = pv; *av != NULL; av++) 1642c9be6216Seric fprintf(e->e_xfp, " %s", *av); 1643c9be6216Seric fprintf(e->e_xfp, "\n"); 1644c9be6216Seric } 1645c9be6216Seric 16465f73204aSeric ExitStat = EX_TEMPFAIL; 16475f73204aSeric return (EX_TEMPFAIL); 1648c579ef51Seric } 1649c579ef51Seric /* 165025a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 165125a99e2eSeric ** 165225a99e2eSeric ** Parameters: 165325a99e2eSeric ** stat -- the status code from the mailer (high byte 165425a99e2eSeric ** only; core dumps must have been taken care of 165525a99e2eSeric ** already). 165681161401Seric ** m -- the mailer info for this mailer. 165781161401Seric ** mci -- the mailer connection info -- can be NULL if the 165881161401Seric ** response is given before the connection is made. 16594dee0003Seric ** ctladdr -- the controlling address for the recipient 16604dee0003Seric ** address(es). 166181161401Seric ** e -- the current envelope. 166225a99e2eSeric ** 166325a99e2eSeric ** Returns: 1664db8841e9Seric ** none. 166525a99e2eSeric ** 166625a99e2eSeric ** Side Effects: 1667c1f9df2cSeric ** Errors may be incremented. 166825a99e2eSeric ** ExitStat may be set. 166925a99e2eSeric */ 167025a99e2eSeric 16714dee0003Seric giveresponse(stat, m, mci, ctladdr, e) 167225a99e2eSeric int stat; 1673588cad61Seric register MAILER *m; 167481161401Seric register MCI *mci; 16754dee0003Seric ADDRESS *ctladdr; 1676198d9be0Seric ENVELOPE *e; 167725a99e2eSeric { 16789c16475dSeric register const char *statmsg; 167925a99e2eSeric extern char *SysExMsg[]; 168025a99e2eSeric register int i; 1681d4bd8f0eSbostic extern int N_SysEx; 1682198d9be0Seric char buf[MAXLINE]; 168325a99e2eSeric 168413bbc08cSeric /* 168513bbc08cSeric ** Compute status message from code. 168613bbc08cSeric */ 168713bbc08cSeric 168825a99e2eSeric i = stat - EX__BASE; 1689588cad61Seric if (stat == 0) 16906fe8c3bcSeric { 1691588cad61Seric statmsg = "250 Sent"; 1692ce5531bdSeric if (e->e_statmsg != NULL) 16936fe8c3bcSeric { 1694ce5531bdSeric (void) sprintf(buf, "%s (%s)", statmsg, e->e_statmsg); 16956fe8c3bcSeric statmsg = buf; 16966fe8c3bcSeric } 16976fe8c3bcSeric } 1698588cad61Seric else if (i < 0 || i > N_SysEx) 1699588cad61Seric { 1700588cad61Seric (void) sprintf(buf, "554 unknown mailer error %d", stat); 1701588cad61Seric stat = EX_UNAVAILABLE; 1702588cad61Seric statmsg = buf; 1703588cad61Seric } 1704198d9be0Seric else if (stat == EX_TEMPFAIL) 1705198d9be0Seric { 17067d55540cSeric (void) strcpy(buf, SysExMsg[i] + 1); 17079d4a8008Seric #if NAMED_BIND 1708f28da541Smiriam if (h_errno == TRY_AGAIN) 17094d50702aSeric statmsg = errstring(h_errno+E_DNSBASE); 1710f28da541Smiriam else 1711d4bd8f0eSbostic #endif 1712f28da541Smiriam { 17138557d168Seric if (errno != 0) 1714d87e85f3Seric statmsg = errstring(errno); 1715d87e85f3Seric else 1716d87e85f3Seric { 1717d87e85f3Seric #ifdef SMTP 1718d87e85f3Seric statmsg = SmtpError; 17196c2c3107Seric #else /* SMTP */ 1720d87e85f3Seric statmsg = NULL; 17216c2c3107Seric #endif /* SMTP */ 1722d87e85f3Seric } 1723f28da541Smiriam } 1724d87e85f3Seric if (statmsg != NULL && statmsg[0] != '\0') 1725d87e85f3Seric { 172687c9b3e7Seric (void) strcat(buf, ": "); 1727d87e85f3Seric (void) strcat(buf, statmsg); 17288557d168Seric } 1729198d9be0Seric statmsg = buf; 1730198d9be0Seric } 17319d4a8008Seric #if NAMED_BIND 1732f170942cSeric else if (stat == EX_NOHOST && h_errno != 0) 1733f170942cSeric { 17344d50702aSeric statmsg = errstring(h_errno + E_DNSBASE); 1735862934b2Seric (void) sprintf(buf, "%s (%s)", SysExMsg[i] + 1, statmsg); 1736f170942cSeric statmsg = buf; 1737f170942cSeric } 1738f170942cSeric #endif 173925a99e2eSeric else 1740d87e85f3Seric { 174125a99e2eSeric statmsg = SysExMsg[i]; 17427d55540cSeric if (*statmsg++ == ':') 17437d55540cSeric { 17447d55540cSeric (void) sprintf(buf, "%s: %s", statmsg, errstring(errno)); 17457d55540cSeric statmsg = buf; 17467d55540cSeric } 1747d87e85f3Seric } 1748588cad61Seric 1749588cad61Seric /* 1750588cad61Seric ** Print the message as appropriate 1751588cad61Seric */ 1752588cad61Seric 1753198d9be0Seric if (stat == EX_OK || stat == EX_TEMPFAIL) 1754df106f0bSeric { 1755df106f0bSeric extern char MsgBuf[]; 1756df106f0bSeric 17571f96bd0bSeric message("%s", &statmsg[4]); 1758df106f0bSeric if (stat == EX_TEMPFAIL && e->e_xfp != NULL) 1759df106f0bSeric fprintf(e->e_xfp, "%s\n", &MsgBuf[4]); 1760df106f0bSeric } 176125a99e2eSeric else 176225a99e2eSeric { 1763862934b2Seric char mbuf[8]; 1764862934b2Seric 1765c1f9df2cSeric Errors++; 1766862934b2Seric sprintf(mbuf, "%.3s %%s", statmsg); 1767862934b2Seric usrerr(mbuf, &statmsg[4]); 176825a99e2eSeric } 176925a99e2eSeric 177025a99e2eSeric /* 177125a99e2eSeric ** Final cleanup. 177225a99e2eSeric ** Log a record of the transaction. Compute the new 177325a99e2eSeric ** ExitStat -- if we already had an error, stick with 177425a99e2eSeric ** that. 177525a99e2eSeric */ 177625a99e2eSeric 17772f624c86Seric if (LogLevel > ((stat == EX_TEMPFAIL) ? 8 : (stat == EX_OK) ? 7 : 6)) 17784dee0003Seric logdelivery(m, mci, &statmsg[4], ctladdr, e); 1779eb238f8cSeric 17805d3f0ed4Seric if (tTd(11, 2)) 17815d3f0ed4Seric printf("giveresponse: stat=%d, e->e_message=%s\n", 17825d3f0ed4Seric stat, e->e_message); 17835d3f0ed4Seric 1784eb238f8cSeric if (stat != EX_TEMPFAIL) 1785eb238f8cSeric setstat(stat); 17861097d4c9Seric if (stat != EX_OK && (stat != EX_TEMPFAIL || e->e_message == NULL)) 1787198d9be0Seric { 1788198d9be0Seric if (e->e_message != NULL) 1789198d9be0Seric free(e->e_message); 1790198d9be0Seric e->e_message = newstr(&statmsg[4]); 1791198d9be0Seric } 17928557d168Seric errno = 0; 17939d4a8008Seric #if NAMED_BIND 1794f28da541Smiriam h_errno = 0; 1795d4bd8f0eSbostic #endif 1796eb238f8cSeric } 1797eb238f8cSeric /* 1798eb238f8cSeric ** LOGDELIVERY -- log the delivery in the system log 1799eb238f8cSeric ** 18002c9b4f99Seric ** Care is taken to avoid logging lines that are too long, because 18012c9b4f99Seric ** some versions of syslog have an unfortunate proclivity for core 18022c9b4f99Seric ** dumping. This is a hack, to be sure, that is at best empirical. 18032c9b4f99Seric ** 1804eb238f8cSeric ** Parameters: 180581161401Seric ** m -- the mailer info. Can be NULL for initial queue. 180681161401Seric ** mci -- the mailer connection info -- can be NULL if the 180781161401Seric ** log is occuring when no connection is active. 180881161401Seric ** stat -- the message to print for the status. 18094dee0003Seric ** ctladdr -- the controlling address for the to list. 181081161401Seric ** e -- the current envelope. 1811eb238f8cSeric ** 1812eb238f8cSeric ** Returns: 1813eb238f8cSeric ** none 1814eb238f8cSeric ** 1815eb238f8cSeric ** Side Effects: 1816eb238f8cSeric ** none 1817eb238f8cSeric */ 1818eb238f8cSeric 18194dee0003Seric logdelivery(m, mci, stat, ctladdr, e) 182081161401Seric MAILER *m; 182181161401Seric register MCI *mci; 1822eb238f8cSeric char *stat; 18234dee0003Seric ADDRESS *ctladdr; 1824b31e7f2bSeric register ENVELOPE *e; 18255cf56be3Seric { 1826eb238f8cSeric # ifdef LOG 18274dee0003Seric register char *bp; 18282c9b4f99Seric register char *p; 18292c9b4f99Seric int l; 1830d6acf3eeSeric char buf[512]; 18319507d1f9Seric 18323a100e8bSeric # if (SYSLOG_BUFSIZE) >= 256 18334dee0003Seric bp = buf; 18344dee0003Seric if (ctladdr != NULL) 18354dee0003Seric { 18364dee0003Seric strcpy(bp, ", ctladdr="); 1837f62f08c7Seric strcat(bp, shortenstring(ctladdr->q_paddr, 83)); 18384dee0003Seric bp += strlen(bp); 18394dee0003Seric if (bitset(QGOODUID, ctladdr->q_flags)) 18404dee0003Seric { 18414dee0003Seric (void) sprintf(bp, " (%d/%d)", 18424dee0003Seric ctladdr->q_uid, ctladdr->q_gid); 18434dee0003Seric bp += strlen(bp); 18444dee0003Seric } 18454dee0003Seric } 18464dee0003Seric 18474dee0003Seric (void) sprintf(bp, ", delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 18484dee0003Seric bp += strlen(bp); 184981161401Seric 185048ed5d33Seric if (m != NULL) 185171ff6caaSeric { 18524dee0003Seric (void) strcpy(bp, ", mailer="); 18534dee0003Seric (void) strcat(bp, m->m_name); 18544dee0003Seric bp += strlen(bp); 185571ff6caaSeric } 185648ed5d33Seric 185748ed5d33Seric if (mci != NULL && mci->mci_host != NULL) 185871ff6caaSeric { 185971ff6caaSeric # ifdef DAEMON 1860e2f2f828Seric extern SOCKADDR CurHostAddr; 186148ed5d33Seric # endif 186271ff6caaSeric 18634dee0003Seric (void) strcpy(bp, ", relay="); 18644dee0003Seric (void) strcat(bp, mci->mci_host); 186548ed5d33Seric 186648ed5d33Seric # ifdef DAEMON 18672bdfc6b9Seric (void) strcat(bp, " ["); 18684dee0003Seric (void) strcat(bp, anynet_ntoa(&CurHostAddr)); 18692bdfc6b9Seric (void) strcat(bp, "]"); 187071ff6caaSeric # endif 187171ff6caaSeric } 1872bcb9b028Seric else if (strcmp(stat, "queued") != 0) 187348ed5d33Seric { 187448ed5d33Seric char *p = macvalue('h', e); 18759507d1f9Seric 187648ed5d33Seric if (p != NULL && p[0] != '\0') 187748ed5d33Seric { 18784dee0003Seric (void) strcpy(bp, ", relay="); 18794dee0003Seric (void) strcat(bp, p); 188048ed5d33Seric } 188148ed5d33Seric } 1882cb082c5bSeric bp += strlen(bp); 1883d6acf3eeSeric 18843a100e8bSeric #define STATLEN (((SYSLOG_BUFSIZE) - 100) / 4) 18853a100e8bSeric #if (STATLEN) < 63 18863a100e8bSeric # undef STATLEN 18873a100e8bSeric # define STATLEN 63 18883a100e8bSeric #endif 18893a100e8bSeric #if (STATLEN) > 203 18903a100e8bSeric # undef STATLEN 18913a100e8bSeric # define STATLEN 203 18923a100e8bSeric #endif 18933a100e8bSeric 18943a100e8bSeric if ((bp - buf) > (sizeof buf - ((STATLEN) + 20))) 18952c9b4f99Seric { 18962c9b4f99Seric /* desperation move -- truncate data */ 18973a100e8bSeric bp = buf + sizeof buf - ((STATLEN) + 17); 18982c9b4f99Seric strcpy(bp, "..."); 18992c9b4f99Seric bp += 3; 19002c9b4f99Seric } 19012c9b4f99Seric 19022c9b4f99Seric (void) strcpy(bp, ", stat="); 19032c9b4f99Seric bp += strlen(bp); 19043a100e8bSeric 19053a100e8bSeric (void) strcpy(bp, shortenstring(stat, (STATLEN))); 19062c9b4f99Seric 19072c9b4f99Seric l = SYSLOG_BUFSIZE - 100 - strlen(buf); 19082c9b4f99Seric p = e->e_to; 19092c9b4f99Seric while (strlen(p) >= l) 19102c9b4f99Seric { 19112c9b4f99Seric register char *q = strchr(p + l, ','); 19122c9b4f99Seric 19132a1b6b73Seric if (q == NULL) 19142c9b4f99Seric break; 19152c9b4f99Seric syslog(LOG_INFO, "%s: to=%.*s [more]%s", 19162c9b4f99Seric e->e_id, ++q - p, p, buf); 19172c9b4f99Seric p = q; 19182c9b4f99Seric } 19192c9b4f99Seric syslog(LOG_INFO, "%s: to=%s%s", e->e_id, p, buf); 19203a100e8bSeric 19213a100e8bSeric # else /* we have a very short log buffer size */ 19223a100e8bSeric 192327607809Seric l = SYSLOG_BUFSIZE - 85; 19243a100e8bSeric p = e->e_to; 19253a100e8bSeric while (strlen(p) >= l) 19263a100e8bSeric { 19273a100e8bSeric register char *q = strchr(p + l, ','); 19283a100e8bSeric 19293a100e8bSeric if (q == NULL) 19303a100e8bSeric break; 19313a100e8bSeric syslog(LOG_INFO, "%s: to=%.*s [more]", 19323a100e8bSeric e->e_id, ++q - p, p); 19333a100e8bSeric p = q; 19343a100e8bSeric } 19353a100e8bSeric syslog(LOG_INFO, "%s: to=%s", e->e_id, p); 19363a100e8bSeric 19373a100e8bSeric if (ctladdr != NULL) 19383a100e8bSeric { 19393a100e8bSeric bp = buf; 19403a100e8bSeric strcpy(buf, "ctladdr="); 19413a100e8bSeric bp += strlen(buf); 19423a100e8bSeric strcpy(bp, shortenstring(ctladdr->q_paddr, 83)); 19433a100e8bSeric bp += strlen(buf); 19443a100e8bSeric if (bitset(QGOODUID, ctladdr->q_flags)) 19453a100e8bSeric { 19463a100e8bSeric (void) sprintf(bp, " (%d/%d)", 19473a100e8bSeric ctladdr->q_uid, ctladdr->q_gid); 19483a100e8bSeric bp += strlen(bp); 19493a100e8bSeric } 19503a100e8bSeric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19513a100e8bSeric } 19524e797715Seric bp = buf; 19534e797715Seric sprintf(bp, "delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 19544e797715Seric bp += strlen(bp); 19553a100e8bSeric 19563a100e8bSeric if (m != NULL) 19574e797715Seric { 19584e797715Seric sprintf(bp, ", mailer=%s", m->m_name); 19594e797715Seric bp += strlen(bp); 19604e797715Seric } 1961b056abd0Seric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19623a100e8bSeric 1963b056abd0Seric buf[0] = '\0'; 19643a100e8bSeric if (mci != NULL && mci->mci_host != NULL) 19653a100e8bSeric { 19663a100e8bSeric # ifdef DAEMON 19673a100e8bSeric extern SOCKADDR CurHostAddr; 19683a100e8bSeric # endif 19693a100e8bSeric 1970d2ece200Seric sprintf(buf, "relay=%s", mci->mci_host); 19713a100e8bSeric 19723a100e8bSeric # ifdef DAEMON 1973b056abd0Seric (void) strcat(buf, " ["); 1974b056abd0Seric (void) strcat(buf, anynet_ntoa(&CurHostAddr)); 1975b056abd0Seric (void) strcat(buf, "]"); 19763a100e8bSeric # endif 19773a100e8bSeric } 1978bcb9b028Seric else if (strcmp(stat, "queued") != 0) 19793a100e8bSeric { 19803a100e8bSeric char *p = macvalue('h', e); 19813a100e8bSeric 19823a100e8bSeric if (p != NULL && p[0] != '\0') 1983d2ece200Seric sprintf(buf, "relay=%s", p); 19843a100e8bSeric } 1985b056abd0Seric if (buf[0] != '\0') 19864e797715Seric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19873a100e8bSeric 19883a100e8bSeric syslog(LOG_INFO, "%s: stat=%s", e->e_id, shortenstring(stat, 63)); 19893a100e8bSeric # endif /* short log buffer */ 19906c2c3107Seric # endif /* LOG */ 199125a99e2eSeric } 199225a99e2eSeric /* 199351552439Seric ** PUTFROMLINE -- output a UNIX-style from line (or whatever) 199425a99e2eSeric ** 199551552439Seric ** This can be made an arbitrary message separator by changing $l 199651552439Seric ** 19979b6c17a6Seric ** One of the ugliest hacks seen by human eyes is contained herein: 19989b6c17a6Seric ** UUCP wants those stupid "remote from <host>" lines. Why oh why 19999b6c17a6Seric ** does a well-meaning programmer such as myself have to deal with 20009b6c17a6Seric ** this kind of antique garbage???? 200125a99e2eSeric ** 200225a99e2eSeric ** Parameters: 20035aa0f353Seric ** mci -- the connection information. 20045aa0f353Seric ** e -- the envelope. 200525a99e2eSeric ** 200625a99e2eSeric ** Returns: 200751552439Seric ** none 200825a99e2eSeric ** 200925a99e2eSeric ** Side Effects: 201051552439Seric ** outputs some text to fp. 201125a99e2eSeric */ 201225a99e2eSeric 20135aa0f353Seric putfromline(mci, e) 20145aa0f353Seric register MCI *mci; 2015b31e7f2bSeric ENVELOPE *e; 201625a99e2eSeric { 20172bc47524Seric char *template = "\201l\n"; 201851552439Seric char buf[MAXLINE]; 201925a99e2eSeric 20205aa0f353Seric if (bitnset(M_NHDR, mci->mci_mailer->m_flags)) 202151552439Seric return; 202213bbc08cSeric 20232c7e1b8dSeric # ifdef UGLYUUCP 20245aa0f353Seric if (bitnset(M_UGLYUUCP, mci->mci_mailer->m_flags)) 202574b6e67bSeric { 2026ea09d6edSeric char *bang; 2027ea09d6edSeric char xbuf[MAXLINE]; 202874b6e67bSeric 2029ee4b0922Seric expand("\201g", buf, &buf[sizeof buf - 1], e); 20306c2c3107Seric bang = strchr(buf, '!'); 203174b6e67bSeric if (bang == NULL) 203234fcca25Seric { 203334fcca25Seric errno = 0; 203434fcca25Seric syserr("554 No ! in UUCP From address! (%s given)", buf); 203534fcca25Seric } 203674b6e67bSeric else 2037588cad61Seric { 2038ea09d6edSeric *bang++ = '\0'; 20392bc47524Seric (void) sprintf(xbuf, "From %s \201d remote from %s\n", bang, buf); 2040ea09d6edSeric template = xbuf; 204174b6e67bSeric } 2042588cad61Seric } 20436c2c3107Seric # endif /* UGLYUUCP */ 2044b31e7f2bSeric expand(template, buf, &buf[sizeof buf - 1], e); 20455aa0f353Seric putline(buf, mci); 2046bc6e2962Seric } 2047bc6e2962Seric /* 204851552439Seric ** PUTBODY -- put the body of a message. 204951552439Seric ** 205051552439Seric ** Parameters: 20515aa0f353Seric ** mci -- the connection information. 20529a6a5f55Seric ** e -- the envelope to put out. 205303c02fdeSeric ** separator -- if non-NULL, a message separator that must 205403c02fdeSeric ** not be permitted in the resulting message. 205551552439Seric ** 205651552439Seric ** Returns: 205751552439Seric ** none. 205851552439Seric ** 205951552439Seric ** Side Effects: 206051552439Seric ** The message is written onto fp. 206151552439Seric */ 206251552439Seric 20638d0f8cdfSeric /* values for output state variable */ 20648d0f8cdfSeric #define OS_HEAD 0 /* at beginning of line */ 20658d0f8cdfSeric #define OS_CR 1 /* read a carriage return */ 20668d0f8cdfSeric #define OS_INLINE 2 /* putting rest of line */ 20678d0f8cdfSeric 20685aa0f353Seric putbody(mci, e, separator) 20695aa0f353Seric register MCI *mci; 20709a6a5f55Seric register ENVELOPE *e; 207103c02fdeSeric char *separator; 207251552439Seric { 207377b52738Seric char buf[MAXLINE]; 207451552439Seric 207551552439Seric /* 207651552439Seric ** Output the body of the message 207751552439Seric */ 207851552439Seric 20799a6a5f55Seric if (e->e_dfp == NULL) 208051552439Seric { 20819a6a5f55Seric if (e->e_df != NULL) 20829a6a5f55Seric { 20839a6a5f55Seric e->e_dfp = fopen(e->e_df, "r"); 20849a6a5f55Seric if (e->e_dfp == NULL) 20858f9146b0Srick syserr("putbody: Cannot open %s for %s from %s", 2086e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 20879a6a5f55Seric } 20889a6a5f55Seric else 2089a6ce3008Seric { 2090a6ce3008Seric if (bitset(MCIF_INHEADER, mci->mci_flags)) 2091a6ce3008Seric { 2092a6ce3008Seric putline("", mci); 2093a6ce3008Seric mci->mci_flags &= ~MCIF_INHEADER; 2094a6ce3008Seric } 20955aa0f353Seric putline("<<< No Message Collected >>>", mci); 20968d0f8cdfSeric goto endofmessage; 20979a6a5f55Seric } 2098a6ce3008Seric } 2099*519e7d80Seric if (e->e_dfp != NULL && e->e_dfino == (ino_t) 0) 2100*519e7d80Seric { 2101*519e7d80Seric struct stat stbuf; 2102*519e7d80Seric 2103*519e7d80Seric if (fstat(fileno(e->e_dfp), &stbuf) < 0) 2104*519e7d80Seric e->e_dfino = -1; 2105*519e7d80Seric else 2106*519e7d80Seric e->e_dfino = stbuf.st_ino; 2107*519e7d80Seric } 21089a6a5f55Seric rewind(e->e_dfp); 2109a6ce3008Seric 2110a6ce3008Seric if (bitset(MCIF_CVT8TO7, mci->mci_flags)) 2111a6ce3008Seric { 2112a6ce3008Seric /* do 8 to 7 bit MIME conversion */ 2113a6ce3008Seric if (hvalue("MIME-Version", e->e_header) == NULL) 2114a6ce3008Seric putline("MIME-Version: 1.0", mci); 2115a6ce3008Seric mime8to7(mci, e->e_header, e, NULL); 2116a6ce3008Seric } 2117a6ce3008Seric else 2118a6ce3008Seric { 21198d0f8cdfSeric int ostate; 21208d0f8cdfSeric register char *bp; 21218d0f8cdfSeric register char *pbp; 21228d0f8cdfSeric register int c; 21238d0f8cdfSeric int padc; 21248d0f8cdfSeric char *buflim; 21258d0f8cdfSeric int pos; 21268d0f8cdfSeric char peekbuf[10]; 21278d0f8cdfSeric 2128a6ce3008Seric /* we can pass it through unmodified */ 2129a6ce3008Seric if (bitset(MCIF_INHEADER, mci->mci_flags)) 2130a6ce3008Seric { 2131a6ce3008Seric putline("", mci); 2132a6ce3008Seric mci->mci_flags &= ~MCIF_INHEADER; 2133a6ce3008Seric } 21348d0f8cdfSeric 21358d0f8cdfSeric /* determine end of buffer; allow for short mailer lines */ 21368d0f8cdfSeric buflim = &buf[sizeof buf - 1]; 21378d0f8cdfSeric if (mci->mci_mailer->m_linelimit < sizeof buf - 1) 21388d0f8cdfSeric buflim = &buf[mci->mci_mailer->m_linelimit - 1]; 21398d0f8cdfSeric 21408d0f8cdfSeric /* copy temp file to output with mapping */ 21418d0f8cdfSeric ostate = OS_HEAD; 21428d0f8cdfSeric bp = buf; 21438d0f8cdfSeric pbp = peekbuf; 21448d0f8cdfSeric while (!ferror(mci->mci_out)) 214524fc8aeeSeric { 21468d0f8cdfSeric register char *xp; 21478d0f8cdfSeric 21488d0f8cdfSeric if (pbp > peekbuf) 21498d0f8cdfSeric c = *--pbp; 21508d0f8cdfSeric else if ((c = fgetc(e->e_dfp)) == EOF) 21518d0f8cdfSeric break; 21528d0f8cdfSeric if (bitset(MCIF_7BIT, mci->mci_flags)) 21538d0f8cdfSeric c &= 0x7f; 21548d0f8cdfSeric switch (ostate) 21558d0f8cdfSeric { 21568d0f8cdfSeric case OS_HEAD: 21578d0f8cdfSeric if (c != '\r' && c != '\n' && bp < buflim) 21588d0f8cdfSeric { 21598d0f8cdfSeric *bp++ = c; 21608d0f8cdfSeric break; 21618d0f8cdfSeric } 21628d0f8cdfSeric 21638d0f8cdfSeric /* check beginning of line for special cases */ 21648d0f8cdfSeric *bp = '\0'; 21658d0f8cdfSeric pos = 0; 21668d0f8cdfSeric padc = EOF; 21675aa0f353Seric if (buf[0] == 'F' && 21685aa0f353Seric bitnset(M_ESCFROM, mci->mci_mailer->m_flags) && 2169d6fa2b58Sbostic strncmp(buf, "From ", 5) == 0) 21708d0f8cdfSeric { 21718d0f8cdfSeric padc = '>'; 21728d0f8cdfSeric } 2173a6ce3008Seric if (buf[0] == '-' && buf[1] == '-' && 2174a6ce3008Seric separator != NULL) 217503c02fdeSeric { 217603c02fdeSeric /* possible separator */ 217703c02fdeSeric int sl = strlen(separator); 217803c02fdeSeric 217903c02fdeSeric if (strncmp(&buf[2], separator, sl) == 0) 21808d0f8cdfSeric padc = ' '; 218103c02fdeSeric } 21828d0f8cdfSeric if (buf[0] == '.' && 21838d0f8cdfSeric bitnset(M_XDOT, mci->mci_mailer->m_flags)) 21848d0f8cdfSeric { 21858d0f8cdfSeric padc = '.'; 21868d0f8cdfSeric } 21878d0f8cdfSeric 21888d0f8cdfSeric /* now copy out saved line */ 21898d0f8cdfSeric if (TrafficLogFile != NULL) 21908d0f8cdfSeric { 21918d0f8cdfSeric fprintf(TrafficLogFile, "%05d >>> ", getpid()); 21928d0f8cdfSeric if (padc != EOF) 21938d0f8cdfSeric fputc(padc, TrafficLogFile); 21948d0f8cdfSeric for (xp = buf; xp < bp; xp++) 21958d0f8cdfSeric fputc(*xp, TrafficLogFile); 21968d0f8cdfSeric if (c == '\n') 21978d0f8cdfSeric fputs(mci->mci_mailer->m_eol, 21988d0f8cdfSeric TrafficLogFile); 21998d0f8cdfSeric } 22008d0f8cdfSeric if (padc != EOF) 22018d0f8cdfSeric { 22028d0f8cdfSeric fputc(padc, mci->mci_out); 22038d0f8cdfSeric pos++; 22048d0f8cdfSeric } 22058d0f8cdfSeric for (xp = buf; xp < bp; xp++) 22068d0f8cdfSeric fputc(*xp, mci->mci_out); 22078d0f8cdfSeric if (c == '\n') 22088d0f8cdfSeric { 22098d0f8cdfSeric fputs(mci->mci_mailer->m_eol, 22108d0f8cdfSeric mci->mci_out); 22118d0f8cdfSeric pos = 0; 22128d0f8cdfSeric } 22138d0f8cdfSeric else 22148d0f8cdfSeric { 22158d0f8cdfSeric pos += bp - buf; 22168d0f8cdfSeric *pbp++ = c; 22178d0f8cdfSeric } 22188d0f8cdfSeric bp = buf; 22198d0f8cdfSeric 22208d0f8cdfSeric /* determine next state */ 22218d0f8cdfSeric if (c == '\n') 22228d0f8cdfSeric ostate = OS_HEAD; 22238d0f8cdfSeric else if (c == '\r') 22248d0f8cdfSeric ostate = OS_CR; 22258d0f8cdfSeric else 22268d0f8cdfSeric ostate = OS_INLINE; 22278d0f8cdfSeric continue; 22288d0f8cdfSeric 22298d0f8cdfSeric case OS_CR: 22308d0f8cdfSeric if (c == '\n') 22318d0f8cdfSeric { 22328d0f8cdfSeric /* got CRLF */ 22338d0f8cdfSeric fputs(mci->mci_mailer->m_eol, mci->mci_out); 22348d0f8cdfSeric if (TrafficLogFile != NULL) 22358d0f8cdfSeric { 22368d0f8cdfSeric fputs(mci->mci_mailer->m_eol, 22378d0f8cdfSeric TrafficLogFile); 22388d0f8cdfSeric } 22398d0f8cdfSeric ostate = OS_HEAD; 22408d0f8cdfSeric continue; 22418d0f8cdfSeric } 22428d0f8cdfSeric 22438d0f8cdfSeric /* had a naked carriage return */ 22448d0f8cdfSeric *pbp++ = c; 22458d0f8cdfSeric c = '\r'; 22468d0f8cdfSeric goto putchar; 22478d0f8cdfSeric 22488d0f8cdfSeric case OS_INLINE: 22498d0f8cdfSeric if (c == '\r') 22508d0f8cdfSeric { 22518d0f8cdfSeric ostate = OS_CR; 22528d0f8cdfSeric continue; 22538d0f8cdfSeric } 22548d0f8cdfSeric putchar: 22558d0f8cdfSeric if (pos > mci->mci_mailer->m_linelimit && 22568d0f8cdfSeric c != '\n') 22578d0f8cdfSeric { 22588d0f8cdfSeric putc('!', mci->mci_out); 22598d0f8cdfSeric fputs(mci->mci_mailer->m_eol, mci->mci_out); 22608d0f8cdfSeric if (TrafficLogFile != NULL) 22618d0f8cdfSeric { 22628d0f8cdfSeric fprintf(TrafficLogFile, "!%s", 22638d0f8cdfSeric mci->mci_mailer->m_eol); 22648d0f8cdfSeric } 22658d0f8cdfSeric ostate = OS_HEAD; 22668d0f8cdfSeric *pbp++ = c; 22678d0f8cdfSeric continue; 22688d0f8cdfSeric } 22698d0f8cdfSeric if (TrafficLogFile != NULL) 22708d0f8cdfSeric fputc(c, TrafficLogFile); 22718d0f8cdfSeric putc(c, mci->mci_out); 22728d0f8cdfSeric pos++; 22738d0f8cdfSeric if (c == '\n') 22748d0f8cdfSeric ostate = OS_HEAD; 22758d0f8cdfSeric break; 22768d0f8cdfSeric } 227724fc8aeeSeric } 2278a6ce3008Seric } 227951552439Seric 22809a6a5f55Seric if (ferror(e->e_dfp)) 228151552439Seric { 2282df106f0bSeric syserr("putbody: %s: read error", e->e_df); 228351552439Seric ExitStat = EX_IOERR; 228451552439Seric } 228551552439Seric 22868d0f8cdfSeric endofmessage: 22870890ba1fSeric /* some mailers want extra blank line at end of message */ 22885aa0f353Seric if (bitnset(M_BLANKEND, mci->mci_mailer->m_flags) && 22895aa0f353Seric buf[0] != '\0' && buf[0] != '\n') 22905aa0f353Seric putline("", mci); 22910890ba1fSeric 22925aa0f353Seric (void) fflush(mci->mci_out); 22935aa0f353Seric if (ferror(mci->mci_out) && errno != EPIPE) 229451552439Seric { 229551552439Seric syserr("putbody: write error"); 229651552439Seric ExitStat = EX_IOERR; 229751552439Seric } 229851552439Seric errno = 0; 229925a99e2eSeric } 230025a99e2eSeric /* 230125a99e2eSeric ** MAILFILE -- Send a message to a file. 230225a99e2eSeric ** 2303f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 2304f129ec7dSeric ** bits, sendmail will try to become the owner of that file 2305f129ec7dSeric ** rather than the real user. Obviously, this only works if 2306f129ec7dSeric ** sendmail runs as root. 2307f129ec7dSeric ** 2308588cad61Seric ** This could be done as a subordinate mailer, except that it 2309588cad61Seric ** is used implicitly to save messages in ~/dead.letter. We 2310588cad61Seric ** view this as being sufficiently important as to include it 2311588cad61Seric ** here. For example, if the system is dying, we shouldn't have 2312588cad61Seric ** to create another process plus some pipes to save the message. 2313588cad61Seric ** 231425a99e2eSeric ** Parameters: 231525a99e2eSeric ** filename -- the name of the file to send to. 23166259796dSeric ** ctladdr -- the controlling address header -- includes 23176259796dSeric ** the userid/groupid to be when sending. 231825a99e2eSeric ** 231925a99e2eSeric ** Returns: 232025a99e2eSeric ** The exit code associated with the operation. 232125a99e2eSeric ** 232225a99e2eSeric ** Side Effects: 232325a99e2eSeric ** none. 232425a99e2eSeric */ 232525a99e2eSeric 2326b31e7f2bSeric mailfile(filename, ctladdr, e) 232725a99e2eSeric char *filename; 23286259796dSeric ADDRESS *ctladdr; 2329b31e7f2bSeric register ENVELOPE *e; 233025a99e2eSeric { 233125a99e2eSeric register FILE *f; 233232d19d43Seric register int pid; 233315d084d5Seric int mode; 233425a99e2eSeric 2335671745f3Seric if (tTd(11, 1)) 2336671745f3Seric { 2337671745f3Seric printf("mailfile %s\n ctladdr=", filename); 2338671745f3Seric printaddr(ctladdr, FALSE); 2339671745f3Seric } 2340671745f3Seric 2341f170942cSeric if (e->e_xfp != NULL) 2342f170942cSeric fflush(e->e_xfp); 2343f170942cSeric 234432d19d43Seric /* 234532d19d43Seric ** Fork so we can change permissions here. 234632d19d43Seric ** Note that we MUST use fork, not vfork, because of 234732d19d43Seric ** the complications of calling subroutines, etc. 234832d19d43Seric */ 234932d19d43Seric 235032d19d43Seric DOFORK(fork); 235132d19d43Seric 235232d19d43Seric if (pid < 0) 235332d19d43Seric return (EX_OSERR); 235432d19d43Seric else if (pid == 0) 235532d19d43Seric { 235632d19d43Seric /* child -- actually write to file */ 2357f129ec7dSeric struct stat stb; 23585aa0f353Seric MCI mcibuf; 2359f129ec7dSeric 23602b9178d3Seric (void) setsignal(SIGINT, SIG_DFL); 23612b9178d3Seric (void) setsignal(SIGHUP, SIG_DFL); 23622b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 23633462ad9eSeric (void) umask(OldUmask); 236495f16dc0Seric 2365f129ec7dSeric if (stat(filename, &stb) < 0) 23663a98e7eaSeric stb.st_mode = FileMode; 236715d084d5Seric mode = stb.st_mode; 236895f16dc0Seric 236995f16dc0Seric /* limit the errors to those actually caused in the child */ 237095f16dc0Seric errno = 0; 237195f16dc0Seric ExitStat = EX_OK; 237295f16dc0Seric 2373f129ec7dSeric if (bitset(0111, stb.st_mode)) 2374f129ec7dSeric exit(EX_CANTCREAT); 237519428781Seric if (ctladdr != NULL) 237615d084d5Seric { 237715d084d5Seric /* ignore setuid and setgid bits */ 237815d084d5Seric mode &= ~(S_ISGID|S_ISUID); 237915d084d5Seric } 238015d084d5Seric 23818f9146b0Srick /* we have to open the dfile BEFORE setuid */ 23828f9146b0Srick if (e->e_dfp == NULL && e->e_df != NULL) 23838f9146b0Srick { 23848f9146b0Srick e->e_dfp = fopen(e->e_df, "r"); 238595f16dc0Seric if (e->e_dfp == NULL) 238695f16dc0Seric { 23878f9146b0Srick syserr("mailfile: Cannot open %s for %s from %s", 2388e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 23898f9146b0Srick } 23908f9146b0Srick } 23918f9146b0Srick 239215d084d5Seric if (!bitset(S_ISGID, mode) || setgid(stb.st_gid) < 0) 2393e36b99e2Seric { 239419428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 239595f16dc0Seric { 2396898a126bSbostic (void) initgroups(DefUser, DefGid); 239795f16dc0Seric } 239895f16dc0Seric else 239995f16dc0Seric { 2400898a126bSbostic (void) initgroups(ctladdr->q_ruser ? 2401898a126bSbostic ctladdr->q_ruser : ctladdr->q_user, 2402898a126bSbostic ctladdr->q_gid); 2403898a126bSbostic } 2404e36b99e2Seric } 240515d084d5Seric if (!bitset(S_ISUID, mode) || setuid(stb.st_uid) < 0) 2406e36b99e2Seric { 240719428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 2408e36b99e2Seric (void) setuid(DefUid); 2409e36b99e2Seric else 24106259796dSeric (void) setuid(ctladdr->q_uid); 2411e36b99e2Seric } 241295f16dc0Seric FileName = filename; 241395f16dc0Seric LineNumber = 0; 24143a98e7eaSeric f = dfopen(filename, O_WRONLY|O_CREAT|O_APPEND, FileMode); 241525a99e2eSeric if (f == NULL) 241695f16dc0Seric { 2417b6a0de9dSeric message("554 cannot open: %s", errstring(errno)); 241832d19d43Seric exit(EX_CANTCREAT); 241995f16dc0Seric } 242025a99e2eSeric 24215aa0f353Seric bzero(&mcibuf, sizeof mcibuf); 24225aa0f353Seric mcibuf.mci_mailer = FileMailer; 24235aa0f353Seric mcibuf.mci_out = f; 24245aa0f353Seric if (bitnset(M_7BITS, FileMailer->m_flags)) 24255aa0f353Seric mcibuf.mci_flags |= MCIF_7BIT; 24265aa0f353Seric 24275aa0f353Seric putfromline(&mcibuf, e); 2428a6ce3008Seric (*e->e_puthdr)(&mcibuf, e->e_header, e); 24295aa0f353Seric (*e->e_putbody)(&mcibuf, e, NULL); 24305aa0f353Seric putline("\n", &mcibuf); 243195f16dc0Seric if (ferror(f)) 243295f16dc0Seric { 2433b6a0de9dSeric message("451 I/O error: %s", errstring(errno)); 243495f16dc0Seric setstat(EX_IOERR); 243595f16dc0Seric } 2436ee4b0922Seric (void) xfclose(f, "mailfile", filename); 243732d19d43Seric (void) fflush(stdout); 2438e36b99e2Seric 243927628d59Seric /* reset ISUID & ISGID bits for paranoid systems */ 2440c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 244195f16dc0Seric exit(ExitStat); 244213bbc08cSeric /*NOTREACHED*/ 244332d19d43Seric } 244432d19d43Seric else 244532d19d43Seric { 244632d19d43Seric /* parent -- wait for exit status */ 2447588cad61Seric int st; 244832d19d43Seric 2449588cad61Seric st = waitfor(pid); 2450bf9bc890Seric if (WIFEXITED(st)) 2451bf9bc890Seric return (WEXITSTATUS(st)); 2452588cad61Seric else 2453b6a0de9dSeric { 2454b6a0de9dSeric syserr("child died on signal %d", st); 2455bf9bc890Seric return (EX_UNAVAILABLE); 2456b6a0de9dSeric } 24578f9146b0Srick /*NOTREACHED*/ 245832d19d43Seric } 245925a99e2eSeric } 2460ea4dc939Seric /* 2461e103b48fSeric ** HOSTSIGNATURE -- return the "signature" for a host. 2462e103b48fSeric ** 2463e103b48fSeric ** The signature describes how we are going to send this -- it 2464e103b48fSeric ** can be just the hostname (for non-Internet hosts) or can be 2465e103b48fSeric ** an ordered list of MX hosts. 2466e103b48fSeric ** 2467e103b48fSeric ** Parameters: 2468e103b48fSeric ** m -- the mailer describing this host. 2469e103b48fSeric ** host -- the host name. 2470e103b48fSeric ** e -- the current envelope. 2471e103b48fSeric ** 2472e103b48fSeric ** Returns: 2473e103b48fSeric ** The signature for this host. 2474e103b48fSeric ** 2475e103b48fSeric ** Side Effects: 2476e103b48fSeric ** Can tweak the symbol table. 2477e103b48fSeric */ 2478e103b48fSeric 2479e103b48fSeric char * 2480e103b48fSeric hostsignature(m, host, e) 2481e103b48fSeric register MAILER *m; 2482e103b48fSeric char *host; 2483e103b48fSeric ENVELOPE *e; 2484e103b48fSeric { 2485e103b48fSeric register char *p; 2486e103b48fSeric register STAB *s; 2487e103b48fSeric int i; 2488e103b48fSeric int len; 24899d4a8008Seric #if NAMED_BIND 2490e103b48fSeric int nmx; 2491e103b48fSeric auto int rcode; 2492bafdc4e5Seric char *hp; 2493bafdc4e5Seric char *endp; 2494516782b4Seric int oldoptions; 2495e103b48fSeric char *mxhosts[MAXMXHOSTS + 1]; 2496e103b48fSeric #endif 2497e103b48fSeric 2498e103b48fSeric /* 2499e103b48fSeric ** Check to see if this uses IPC -- if not, it can't have MX records. 2500e103b48fSeric */ 2501e103b48fSeric 2502e103b48fSeric p = m->m_mailer; 2503e103b48fSeric if (strcmp(p, "[IPC]") != 0 && strcmp(p, "[TCP]") != 0) 2504e103b48fSeric { 2505e103b48fSeric /* just an ordinary mailer */ 2506e103b48fSeric return host; 2507e103b48fSeric } 2508e103b48fSeric 2509e103b48fSeric /* 2510e103b48fSeric ** Look it up in the symbol table. 2511e103b48fSeric */ 2512e103b48fSeric 2513e103b48fSeric s = stab(host, ST_HOSTSIG, ST_ENTER); 2514e103b48fSeric if (s->s_hostsig != NULL) 2515e103b48fSeric return s->s_hostsig; 2516e103b48fSeric 2517e103b48fSeric /* 2518e103b48fSeric ** Not already there -- create a signature. 2519e103b48fSeric */ 2520e103b48fSeric 25219d4a8008Seric #if NAMED_BIND 2522516782b4Seric if (ConfigLevel < 2) 2523516782b4Seric { 2524516782b4Seric oldoptions = _res.options; 2525516782b4Seric _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 2526516782b4Seric } 2527516782b4Seric 2528bafdc4e5Seric for (hp = host; hp != NULL; hp = endp) 2529bafdc4e5Seric { 2530bafdc4e5Seric endp = strchr(hp, ':'); 2531bafdc4e5Seric if (endp != NULL) 2532bafdc4e5Seric *endp = '\0'; 2533bafdc4e5Seric 25347bf809e6Seric nmx = getmxrr(hp, mxhosts, TRUE, &rcode); 25357d55540cSeric 2536e103b48fSeric if (nmx <= 0) 2537e103b48fSeric { 2538e103b48fSeric register MCI *mci; 2539e103b48fSeric 2540e103b48fSeric /* update the connection info for this host */ 2541bafdc4e5Seric mci = mci_get(hp, m); 2542e103b48fSeric mci->mci_exitstat = rcode; 2543e103b48fSeric mci->mci_errno = errno; 25449d4a8008Seric #if NAMED_BIND 2545f170942cSeric mci->mci_herrno = h_errno; 2546f170942cSeric #endif 2547e103b48fSeric 2548e103b48fSeric /* and return the original host name as the signature */ 2549bafdc4e5Seric nmx = 1; 2550bafdc4e5Seric mxhosts[0] = hp; 2551e103b48fSeric } 2552e103b48fSeric 2553e103b48fSeric len = 0; 2554e103b48fSeric for (i = 0; i < nmx; i++) 2555e103b48fSeric { 2556e103b48fSeric len += strlen(mxhosts[i]) + 1; 2557e103b48fSeric } 2558bafdc4e5Seric if (s->s_hostsig != NULL) 2559bafdc4e5Seric len += strlen(s->s_hostsig) + 1; 2560bafdc4e5Seric p = xalloc(len); 2561bafdc4e5Seric if (s->s_hostsig != NULL) 2562bafdc4e5Seric { 2563bafdc4e5Seric (void) strcpy(p, s->s_hostsig); 2564bafdc4e5Seric free(s->s_hostsig); 2565bafdc4e5Seric s->s_hostsig = p; 2566bafdc4e5Seric p += strlen(p); 2567bafdc4e5Seric *p++ = ':'; 2568bafdc4e5Seric } 2569bafdc4e5Seric else 2570bafdc4e5Seric s->s_hostsig = p; 2571e103b48fSeric for (i = 0; i < nmx; i++) 2572e103b48fSeric { 2573e103b48fSeric if (i != 0) 2574e103b48fSeric *p++ = ':'; 2575e103b48fSeric strcpy(p, mxhosts[i]); 2576e103b48fSeric p += strlen(p); 2577e103b48fSeric } 2578bafdc4e5Seric if (endp != NULL) 2579bafdc4e5Seric *endp++ = ':'; 2580bafdc4e5Seric } 2581e103b48fSeric makelower(s->s_hostsig); 2582516782b4Seric if (ConfigLevel < 2) 2583516782b4Seric _res.options = oldoptions; 2584e103b48fSeric #else 2585e103b48fSeric /* not using BIND -- the signature is just the host name */ 2586e103b48fSeric s->s_hostsig = host; 2587e103b48fSeric #endif 2588e103b48fSeric if (tTd(17, 1)) 2589e103b48fSeric printf("hostsignature(%s) = %s\n", host, s->s_hostsig); 2590e103b48fSeric return s->s_hostsig; 2591e103b48fSeric } 2592