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*8b40b0a4Seric static char sccsid[] = "@(#)deliver.c 8.73 (Berkeley) 02/14/94"; 11e70a7521Sbostic #endif /* not lint */ 124227346bSdist 13fcde9cc8Sbostic #include "sendmail.h" 14f28da541Smiriam #include <netdb.h> 15911693bfSbostic #include <errno.h> 16134746fbSeric #ifdef NAMED_BIND 17912a731aSbostic #include <arpa/nameser.h> 18912a731aSbostic #include <resolv.h> 19f170942cSeric 20f170942cSeric extern int h_errno; 21134746fbSeric #endif 2225a99e2eSeric 235d437c4dSeric extern char SmtpError[]; 245d437c4dSeric 2525a99e2eSeric /* 269c9e68d9Seric ** SENDALL -- actually send all the messages. 279c9e68d9Seric ** 289c9e68d9Seric ** Parameters: 299c9e68d9Seric ** e -- the envelope to send. 309c9e68d9Seric ** mode -- the delivery mode to use. If SM_DEFAULT, use 319c9e68d9Seric ** the current e->e_sendmode. 329c9e68d9Seric ** 339c9e68d9Seric ** Returns: 349c9e68d9Seric ** none. 359c9e68d9Seric ** 369c9e68d9Seric ** Side Effects: 379c9e68d9Seric ** Scans the send lists and sends everything it finds. 389c9e68d9Seric ** Delivers any appropriate error messages. 399c9e68d9Seric ** If we are running in a non-interactive mode, takes the 409c9e68d9Seric ** appropriate action. 419c9e68d9Seric */ 429c9e68d9Seric 439c9e68d9Seric sendall(e, mode) 449c9e68d9Seric ENVELOPE *e; 459c9e68d9Seric char mode; 469c9e68d9Seric { 479c9e68d9Seric register ADDRESS *q; 489c9e68d9Seric char *owner; 499c9e68d9Seric int otherowners; 50b056abd0Seric register ENVELOPE *ee; 51b056abd0Seric ENVELOPE *splitenv = NULL; 526103d9b4Seric bool announcequeueup; 539c9e68d9Seric 547880f3e4Seric /* 557880f3e4Seric ** If we have had global, fatal errors, don't bother sending 567880f3e4Seric ** the message at all if we are in SMTP mode. Local errors 577880f3e4Seric ** (e.g., a single address failing) will still cause the other 587880f3e4Seric ** addresses to be sent. 597880f3e4Seric */ 607880f3e4Seric 618d19a23dSeric if (bitset(EF_FATALERRS, e->e_flags) && 628d19a23dSeric (OpMode == MD_SMTP || OpMode == MD_DAEMON)) 63896b16f6Seric { 64896b16f6Seric e->e_flags |= EF_CLRQUEUE; 65896b16f6Seric return; 66896b16f6Seric } 67896b16f6Seric 689c9e68d9Seric /* determine actual delivery mode */ 69fbe2f963Seric CurrentLA = getla(); 709c9e68d9Seric if (mode == SM_DEFAULT) 719c9e68d9Seric { 729c9e68d9Seric mode = e->e_sendmode; 739c9e68d9Seric if (mode != SM_VERIFY && 749c9e68d9Seric shouldqueue(e->e_msgpriority, e->e_ctime)) 759c9e68d9Seric mode = SM_QUEUE; 766103d9b4Seric announcequeueup = mode == SM_QUEUE; 779c9e68d9Seric } 786103d9b4Seric else 796103d9b4Seric announcequeueup = FALSE; 809c9e68d9Seric 819c9e68d9Seric if (tTd(13, 1)) 829c9e68d9Seric { 830e484fe5Seric printf("\n===== SENDALL: mode %c, id %s, e_from ", 840e484fe5Seric mode, e->e_id); 859c9e68d9Seric printaddr(&e->e_from, FALSE); 869c9e68d9Seric printf("sendqueue:\n"); 879c9e68d9Seric printaddr(e->e_sendqueue, TRUE); 889c9e68d9Seric } 899c9e68d9Seric 909c9e68d9Seric /* 919c9e68d9Seric ** Do any preprocessing necessary for the mode we are running. 929c9e68d9Seric ** Check to make sure the hop count is reasonable. 939c9e68d9Seric ** Delete sends to the sender in mailing lists. 949c9e68d9Seric */ 959c9e68d9Seric 969c9e68d9Seric CurEnv = e; 979c9e68d9Seric 989c9e68d9Seric if (e->e_hopcount > MaxHopCount) 999c9e68d9Seric { 1009c9e68d9Seric errno = 0; 1014bb8b0fdSeric syserr("554 too many hops %d (%d max): from %s via %s, to %s", 1029c9e68d9Seric e->e_hopcount, MaxHopCount, e->e_from.q_paddr, 103f7869e68Seric RealHostName == NULL ? "localhost" : RealHostName, 104f7869e68Seric e->e_sendqueue->q_paddr); 1059c9e68d9Seric return; 1069c9e68d9Seric } 1079c9e68d9Seric 108b8004690Seric /* 109b8004690Seric ** Do sender deletion. 110b8004690Seric ** 111b8004690Seric ** If the sender has the QQUEUEUP flag set, skip this. 112b8004690Seric ** This can happen if the name server is hosed when you 113b8004690Seric ** are trying to send mail. The result is that the sender 114b8004690Seric ** is instantiated in the queue as a recipient. 115b8004690Seric */ 116b8004690Seric 117e76a6a8fSeric if (!bitset(EF_METOO, e->e_flags) && 118e76a6a8fSeric !bitset(QQUEUEUP, e->e_from.q_flags)) 1199c9e68d9Seric { 1209c9e68d9Seric if (tTd(13, 5)) 1219c9e68d9Seric { 1229c9e68d9Seric printf("sendall: QDONTSEND "); 1239c9e68d9Seric printaddr(&e->e_from, FALSE); 1249c9e68d9Seric } 1259c9e68d9Seric e->e_from.q_flags |= QDONTSEND; 1269c9e68d9Seric (void) recipient(&e->e_from, &e->e_sendqueue, e); 1279c9e68d9Seric } 1289c9e68d9Seric 129ce5531bdSeric /* 130ce5531bdSeric ** Handle alias owners. 131ce5531bdSeric ** 132ce5531bdSeric ** We scan up the q_alias chain looking for owners. 133ce5531bdSeric ** We discard owners that are the same as the return path. 134ce5531bdSeric */ 135ce5531bdSeric 136ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 137ce5531bdSeric { 138ce5531bdSeric register struct address *a; 139ce5531bdSeric 140ce5531bdSeric for (a = q; a != NULL && a->q_owner == NULL; a = a->q_alias) 141ce5531bdSeric continue; 142ce5531bdSeric if (a != NULL) 143ce5531bdSeric q->q_owner = a->q_owner; 144ce5531bdSeric 145ce5531bdSeric if (q->q_owner != NULL && 146ce5531bdSeric !bitset(QDONTSEND, q->q_flags) && 147ce5531bdSeric strcmp(q->q_owner, e->e_from.q_paddr) == 0) 148ce5531bdSeric q->q_owner = NULL; 149ce5531bdSeric } 150ce5531bdSeric 151ce5531bdSeric owner = ""; 152ce5531bdSeric otherowners = 1; 153ce5531bdSeric while (owner != NULL && otherowners > 0) 154ce5531bdSeric { 155ce5531bdSeric owner = NULL; 156ce5531bdSeric otherowners = 0; 157ce5531bdSeric 158ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 159ce5531bdSeric { 160ce5531bdSeric if (bitset(QDONTSEND, q->q_flags)) 161ce5531bdSeric continue; 162ce5531bdSeric 163ce5531bdSeric if (q->q_owner != NULL) 164ce5531bdSeric { 165ce5531bdSeric if (owner == NULL) 166ce5531bdSeric owner = q->q_owner; 167ce5531bdSeric else if (owner != q->q_owner) 168ce5531bdSeric { 169ce5531bdSeric if (strcmp(owner, q->q_owner) == 0) 170ce5531bdSeric { 171ce5531bdSeric /* make future comparisons cheap */ 172ce5531bdSeric q->q_owner = owner; 173ce5531bdSeric } 174ce5531bdSeric else 175ce5531bdSeric { 176ce5531bdSeric otherowners++; 177ce5531bdSeric } 178ce5531bdSeric owner = q->q_owner; 179ce5531bdSeric } 180ce5531bdSeric } 181ce5531bdSeric else 182ce5531bdSeric { 183ce5531bdSeric otherowners++; 184ce5531bdSeric } 185ce5531bdSeric } 186ce5531bdSeric 187ce5531bdSeric if (owner != NULL && otherowners > 0) 188ce5531bdSeric { 189ce5531bdSeric extern HDR *copyheader(); 190ce5531bdSeric extern ADDRESS *copyqueue(); 191ce5531bdSeric 192ce5531bdSeric /* 193ce5531bdSeric ** Split this envelope into two. 194ce5531bdSeric */ 195ce5531bdSeric 196ce5531bdSeric ee = (ENVELOPE *) xalloc(sizeof(ENVELOPE)); 197ce5531bdSeric *ee = *e; 198ce5531bdSeric ee->e_id = NULL; 199ce5531bdSeric (void) queuename(ee, '\0'); 200ce5531bdSeric 201ce5531bdSeric if (tTd(13, 1)) 202ce5531bdSeric printf("sendall: split %s into %s\n", 203ce5531bdSeric e->e_id, ee->e_id); 204ce5531bdSeric 205ce5531bdSeric ee->e_header = copyheader(e->e_header); 206ce5531bdSeric ee->e_sendqueue = copyqueue(e->e_sendqueue); 207ce5531bdSeric ee->e_errorqueue = copyqueue(e->e_errorqueue); 208ce5531bdSeric ee->e_flags = e->e_flags & ~(EF_INQUEUE|EF_CLRQUEUE|EF_FATALERRS); 209ce5531bdSeric setsender(owner, ee, NULL, TRUE); 210ce5531bdSeric if (tTd(13, 5)) 211ce5531bdSeric { 212ce5531bdSeric printf("sendall(split): QDONTSEND "); 213ce5531bdSeric printaddr(&ee->e_from, FALSE); 214ce5531bdSeric } 215ce5531bdSeric ee->e_from.q_flags |= QDONTSEND; 216ce5531bdSeric ee->e_dfp = NULL; 217ce5531bdSeric ee->e_xfp = NULL; 218ce5531bdSeric ee->e_df = NULL; 219ce5531bdSeric ee->e_errormode = EM_MAIL; 220b056abd0Seric ee->e_sibling = splitenv; 221b056abd0Seric splitenv = ee; 222ce5531bdSeric 223ce5531bdSeric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 224ce5531bdSeric if (q->q_owner == owner) 225ce5531bdSeric q->q_flags |= QDONTSEND; 226ce5531bdSeric for (q = ee->e_sendqueue; q != NULL; q = q->q_next) 227ce5531bdSeric if (q->q_owner != owner) 228ce5531bdSeric q->q_flags |= QDONTSEND; 229ce5531bdSeric 230ce5531bdSeric if (e->e_df != NULL && mode != SM_VERIFY) 231ce5531bdSeric { 232ce5531bdSeric ee->e_dfp = NULL; 233da662164Seric ee->e_df = queuename(ee, 'd'); 234da662164Seric ee->e_df = newstr(ee->e_df); 235ce5531bdSeric if (link(e->e_df, ee->e_df) < 0) 236ce5531bdSeric { 237ce5531bdSeric syserr("sendall: link(%s, %s)", 238ce5531bdSeric e->e_df, ee->e_df); 239ce5531bdSeric } 240ce5531bdSeric } 241ce5531bdSeric #ifdef LOG 242ce5531bdSeric if (LogLevel > 4) 243c8b70947Seric syslog(LOG_INFO, "%s: clone %s, owner=%s", 244c8b70947Seric ee->e_id, e->e_id, owner); 245ce5531bdSeric #endif 246ce5531bdSeric } 247ce5531bdSeric } 248ce5531bdSeric 249ce5531bdSeric if (owner != NULL) 250ce5531bdSeric { 251ce5531bdSeric setsender(owner, e, NULL, TRUE); 252ce5531bdSeric if (tTd(13, 5)) 253ce5531bdSeric { 254ce5531bdSeric printf("sendall(owner): QDONTSEND "); 255ce5531bdSeric printaddr(&e->e_from, FALSE); 256ce5531bdSeric } 257ce5531bdSeric e->e_from.q_flags |= QDONTSEND; 258ce5531bdSeric e->e_errormode = EM_MAIL; 259ce5531bdSeric } 260ce5531bdSeric 261c1ac89b1Seric # ifdef QUEUE 262c1ac89b1Seric if ((mode == SM_QUEUE || mode == SM_FORK || 263c1ac89b1Seric (mode != SM_VERIFY && SuperSafe)) && 264c1ac89b1Seric !bitset(EF_INQUEUE, e->e_flags)) 265c1ac89b1Seric { 266c1ac89b1Seric /* be sure everything is instantiated in the queue */ 2676103d9b4Seric queueup(e, TRUE, announcequeueup); 268b056abd0Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 269b056abd0Seric queueup(ee, TRUE, announcequeueup); 270c1ac89b1Seric } 271c1ac89b1Seric #endif /* QUEUE */ 272c1ac89b1Seric 273b056abd0Seric if (splitenv != NULL) 274b056abd0Seric { 275b056abd0Seric if (tTd(13, 1)) 276b056abd0Seric { 277b056abd0Seric printf("\nsendall: Split queue; remaining queue:\n"); 278b056abd0Seric printaddr(e->e_sendqueue, TRUE); 279b056abd0Seric } 280b056abd0Seric 281b056abd0Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 282b056abd0Seric { 283b056abd0Seric CurEnv = ee; 284562ec147Seric if (mode != SM_VERIFY) 285562ec147Seric openxscript(ee); 286b056abd0Seric sendenvelope(ee, mode); 287562ec147Seric dropenvelope(ee); 288b056abd0Seric } 289b056abd0Seric 290b056abd0Seric CurEnv = e; 291b056abd0Seric } 292b056abd0Seric sendenvelope(e, mode); 293b056abd0Seric } 294b056abd0Seric 295b056abd0Seric sendenvelope(e, mode) 296b056abd0Seric register ENVELOPE *e; 297b056abd0Seric char mode; 298b056abd0Seric { 299b056abd0Seric bool oldverbose; 300b056abd0Seric int pid; 301b056abd0Seric register ADDRESS *q; 302b056abd0Seric char *qf; 303b056abd0Seric char *id; 304b056abd0Seric 3057880f3e4Seric /* 3067880f3e4Seric ** If we have had global, fatal errors, don't bother sending 3077880f3e4Seric ** the message at all if we are in SMTP mode. Local errors 3087880f3e4Seric ** (e.g., a single address failing) will still cause the other 3097880f3e4Seric ** addresses to be sent. 3107880f3e4Seric */ 3117880f3e4Seric 3128d19a23dSeric if (bitset(EF_FATALERRS, e->e_flags) && 3138d19a23dSeric (OpMode == MD_SMTP || OpMode == MD_DAEMON)) 3147880f3e4Seric { 3157880f3e4Seric e->e_flags |= EF_CLRQUEUE; 3167880f3e4Seric return; 3177880f3e4Seric } 3187880f3e4Seric 319ce5531bdSeric oldverbose = Verbose; 320c1ac89b1Seric switch (mode) 321c1ac89b1Seric { 322c1ac89b1Seric case SM_VERIFY: 323c1ac89b1Seric Verbose = TRUE; 324c1ac89b1Seric break; 325c1ac89b1Seric 326c1ac89b1Seric case SM_QUEUE: 327c1ac89b1Seric queueonly: 328c1ac89b1Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 329c1ac89b1Seric return; 330c1ac89b1Seric 331c1ac89b1Seric case SM_FORK: 332c1ac89b1Seric if (e->e_xfp != NULL) 333c1ac89b1Seric (void) fflush(e->e_xfp); 334c1ac89b1Seric 335b269aa8eSeric # if !HASFLOCK 336c1ac89b1Seric /* 3376b2765c6Seric ** Since fcntl locking has the interesting semantic that 3386b2765c6Seric ** the lock is owned by a process, not by an open file 3396b2765c6Seric ** descriptor, we have to flush this to the queue, and 3406b2765c6Seric ** then restart from scratch in the child. 341c1ac89b1Seric */ 342c1ac89b1Seric 3436b2765c6Seric /* save id for future use */ 3446b2765c6Seric id = e->e_id; 3456b2765c6Seric 3466b2765c6Seric /* now drop the envelope in the parent */ 3476b2765c6Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 3486b2765c6Seric dropenvelope(e); 3496b2765c6Seric 3506b2765c6Seric /* and reacquire in the child */ 3516b2765c6Seric (void) dowork(id, TRUE, FALSE, e); 3526b2765c6Seric 3536b2765c6Seric return; 3546b2765c6Seric 3556b2765c6Seric # else /* HASFLOCK */ 356c1ac89b1Seric 357c1ac89b1Seric pid = fork(); 358c1ac89b1Seric if (pid < 0) 359c1ac89b1Seric { 360c1ac89b1Seric goto queueonly; 361c1ac89b1Seric } 362c1ac89b1Seric else if (pid > 0) 363c1ac89b1Seric { 3640e484fe5Seric /* be sure we leave the temp files to our child */ 3650e484fe5Seric /* can't call unlockqueue to avoid unlink of xfp */ 3660e484fe5Seric if (e->e_lockfp != NULL) 3670e484fe5Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 3680e484fe5Seric e->e_lockfp = NULL; 3690e484fe5Seric 3700e484fe5Seric /* close any random open files in the envelope */ 3710e484fe5Seric closexscript(e); 3720e484fe5Seric if (e->e_dfp != NULL) 3730e484fe5Seric (void) xfclose(e->e_dfp, "sendenvelope", e->e_df); 3740e484fe5Seric e->e_dfp = NULL; 3750e484fe5Seric e->e_id = e->e_df = NULL; 3769f9b003eSeric 3779f9b003eSeric /* catch intermediate zombie */ 3789f9b003eSeric (void) waitfor(pid); 379c1ac89b1Seric return; 380c1ac89b1Seric } 381c1ac89b1Seric 382c1ac89b1Seric /* double fork to avoid zombies */ 3839f9b003eSeric pid = fork(); 3849f9b003eSeric if (pid > 0) 385c1ac89b1Seric exit(EX_OK); 386c1ac89b1Seric 387c1ac89b1Seric /* be sure we are immune from the terminal */ 3887880f3e4Seric disconnect(1, e); 389c1ac89b1Seric 3909f9b003eSeric /* prevent parent from waiting if there was an error */ 3919f9b003eSeric if (pid < 0) 3929f9b003eSeric { 3939f9b003eSeric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 3949f9b003eSeric finis(); 3959f9b003eSeric } 3969f9b003eSeric 397c1ac89b1Seric /* 398c1ac89b1Seric ** Close any cached connections. 399c1ac89b1Seric ** 400c1ac89b1Seric ** We don't send the QUIT protocol because the parent 401c1ac89b1Seric ** still knows about the connection. 402c1ac89b1Seric ** 403c1ac89b1Seric ** This should only happen when delivering an error 404c1ac89b1Seric ** message. 405c1ac89b1Seric */ 406c1ac89b1Seric 407c1ac89b1Seric mci_flush(FALSE, NULL); 408c1ac89b1Seric 4096b2765c6Seric # endif /* HASFLOCK */ 4106b2765c6Seric 411c1ac89b1Seric break; 412c1ac89b1Seric } 413c1ac89b1Seric 414c1ac89b1Seric /* 4159c9e68d9Seric ** Run through the list and send everything. 4165288e21aSeric ** 4175288e21aSeric ** Set EF_GLOBALERRS so that error messages during delivery 4185288e21aSeric ** result in returned mail. 4199c9e68d9Seric */ 4209c9e68d9Seric 4219c9e68d9Seric e->e_nsent = 0; 4225288e21aSeric e->e_flags |= EF_GLOBALERRS; 423faad2b16Seric 424faad2b16Seric /* now run through the queue */ 4259c9e68d9Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 4269c9e68d9Seric { 427fdc75a0fSeric #ifdef XDEBUG 428fdc75a0fSeric char wbuf[MAXNAME + 20]; 429fdc75a0fSeric 430fdc75a0fSeric (void) sprintf(wbuf, "sendall(%s)", q->q_paddr); 431fdc75a0fSeric checkfd012(wbuf); 432fdc75a0fSeric #endif 4339c9e68d9Seric if (mode == SM_VERIFY) 4349c9e68d9Seric { 4359c9e68d9Seric e->e_to = q->q_paddr; 4369c9e68d9Seric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4378dfca105Seric { 438fafe46e1Seric if (q->q_host != NULL && q->q_host[0] != '\0') 4398dfca105Seric message("deliverable: mailer %s, host %s, user %s", 4408dfca105Seric q->q_mailer->m_name, 4418dfca105Seric q->q_host, 4428dfca105Seric q->q_user); 443fafe46e1Seric else 444fafe46e1Seric message("deliverable: mailer %s, user %s", 445fafe46e1Seric q->q_mailer->m_name, 446fafe46e1Seric q->q_user); 4478dfca105Seric } 4489c9e68d9Seric } 4499c9e68d9Seric else if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 4509c9e68d9Seric { 4519c9e68d9Seric # ifdef QUEUE 4529c9e68d9Seric /* 4539c9e68d9Seric ** Checkpoint the send list every few addresses 4549c9e68d9Seric */ 4559c9e68d9Seric 4569c9e68d9Seric if (e->e_nsent >= CheckpointInterval) 4579c9e68d9Seric { 4589c9e68d9Seric queueup(e, TRUE, FALSE); 4599c9e68d9Seric e->e_nsent = 0; 4609c9e68d9Seric } 4619c9e68d9Seric # endif /* QUEUE */ 4629c9e68d9Seric (void) deliver(e, q); 4639c9e68d9Seric } 4649c9e68d9Seric } 4659c9e68d9Seric Verbose = oldverbose; 4669c9e68d9Seric 467fdc75a0fSeric #ifdef XDEBUG 468fdc75a0fSeric checkfd012("end of sendenvelope"); 469fdc75a0fSeric #endif 470fdc75a0fSeric 4719c9e68d9Seric if (mode == SM_FORK) 4729c9e68d9Seric finis(); 4739c9e68d9Seric } 4749c9e68d9Seric /* 4759c9e68d9Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 4769c9e68d9Seric ** 4779c9e68d9Seric ** This MUST be a macro, since after a vfork we are running 4789c9e68d9Seric ** two processes on the same stack!!! 4799c9e68d9Seric ** 4809c9e68d9Seric ** Parameters: 4819c9e68d9Seric ** none. 4829c9e68d9Seric ** 4839c9e68d9Seric ** Returns: 4849c9e68d9Seric ** From a macro??? You've got to be kidding! 4859c9e68d9Seric ** 4869c9e68d9Seric ** Side Effects: 4879c9e68d9Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 4889c9e68d9Seric ** pid of child in parent, zero in child. 4899c9e68d9Seric ** -1 on unrecoverable error. 4909c9e68d9Seric ** 4919c9e68d9Seric ** Notes: 4929c9e68d9Seric ** I'm awfully sorry this looks so awful. That's 4939c9e68d9Seric ** vfork for you..... 4949c9e68d9Seric */ 4959c9e68d9Seric 4969c9e68d9Seric # define NFORKTRIES 5 4979c9e68d9Seric 4989c9e68d9Seric # ifndef FORK 4999c9e68d9Seric # define FORK fork 5009c9e68d9Seric # endif 5019c9e68d9Seric 5029c9e68d9Seric # define DOFORK(fORKfN) \ 5039c9e68d9Seric {\ 5049c9e68d9Seric register int i;\ 5059c9e68d9Seric \ 5069c9e68d9Seric for (i = NFORKTRIES; --i >= 0; )\ 5079c9e68d9Seric {\ 5089c9e68d9Seric pid = fORKfN();\ 5099c9e68d9Seric if (pid >= 0)\ 5109c9e68d9Seric break;\ 5119c9e68d9Seric if (i > 0)\ 5129c9e68d9Seric sleep((unsigned) NFORKTRIES - i);\ 5139c9e68d9Seric }\ 5149c9e68d9Seric } 5159c9e68d9Seric /* 5169c9e68d9Seric ** DOFORK -- simple fork interface to DOFORK. 5179c9e68d9Seric ** 5189c9e68d9Seric ** Parameters: 5199c9e68d9Seric ** none. 5209c9e68d9Seric ** 5219c9e68d9Seric ** Returns: 5229c9e68d9Seric ** pid of child in parent. 5239c9e68d9Seric ** zero in child. 5249c9e68d9Seric ** -1 on error. 5259c9e68d9Seric ** 5269c9e68d9Seric ** Side Effects: 5279c9e68d9Seric ** returns twice, once in parent and once in child. 5289c9e68d9Seric */ 5299c9e68d9Seric 5309c9e68d9Seric dofork() 5319c9e68d9Seric { 5329c9e68d9Seric register int pid; 5339c9e68d9Seric 5349c9e68d9Seric DOFORK(fork); 5359c9e68d9Seric return (pid); 5369c9e68d9Seric } 5379c9e68d9Seric /* 53813bbc08cSeric ** DELIVER -- Deliver a message to a list of addresses. 53913bbc08cSeric ** 54013bbc08cSeric ** This routine delivers to everyone on the same host as the 54113bbc08cSeric ** user on the head of the list. It is clever about mailers 54213bbc08cSeric ** that don't handle multiple users. It is NOT guaranteed 54313bbc08cSeric ** that it will deliver to all these addresses however -- so 54413bbc08cSeric ** deliver should be called once for each address on the 54513bbc08cSeric ** list. 54625a99e2eSeric ** 54725a99e2eSeric ** Parameters: 548588cad61Seric ** e -- the envelope to deliver. 549c77d1c25Seric ** firstto -- head of the address list to deliver to. 55025a99e2eSeric ** 55125a99e2eSeric ** Returns: 55225a99e2eSeric ** zero -- successfully delivered. 55325a99e2eSeric ** else -- some failure, see ExitStat for more info. 55425a99e2eSeric ** 55525a99e2eSeric ** Side Effects: 55625a99e2eSeric ** The standard input is passed off to someone. 55725a99e2eSeric */ 55825a99e2eSeric 559588cad61Seric deliver(e, firstto) 560588cad61Seric register ENVELOPE *e; 561c77d1c25Seric ADDRESS *firstto; 56225a99e2eSeric { 56378442df3Seric char *host; /* host being sent to */ 56478442df3Seric char *user; /* user being sent to */ 56525a99e2eSeric char **pvp; 5665dfc646bSeric register char **mvp; 56725a99e2eSeric register char *p; 568588cad61Seric register MAILER *m; /* mailer for this recipient */ 5696259796dSeric ADDRESS *ctladdr; 570b31e7f2bSeric register MCI *mci; 571c77d1c25Seric register ADDRESS *to = firstto; 572c579ef51Seric bool clever = FALSE; /* running user smtp to this mailer */ 573772e6e50Seric ADDRESS *tochain = NULL; /* chain of users in this mailer call */ 574911693bfSbostic int rcode; /* response code */ 575e103b48fSeric char *firstsig; /* signature of firstto */ 5769c9e68d9Seric int pid; 5779c9e68d9Seric char *curhost; 5789c9e68d9Seric int mpvect[2]; 5799c9e68d9Seric int rpvect[2]; 580ee6bf8dfSeric char *pv[MAXPV+1]; 581579ef0ddSeric char tobuf[TOBUFSIZE]; /* text line of to people */ 582ee6bf8dfSeric char buf[MAXNAME]; 583c23ed322Seric char rpathbuf[MAXNAME]; /* translated return path */ 584fabb3bd4Seric extern int checkcompat(); 58525a99e2eSeric 58635490626Seric errno = 0; 587ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags)) 5885dfc646bSeric return (0); 58925a99e2eSeric 590134746fbSeric #ifdef NAMED_BIND 591912a731aSbostic /* unless interactive, try twice, over a minute */ 5928d19a23dSeric if (OpMode == MD_DAEMON || OpMode == MD_SMTP) 5938d19a23dSeric { 594912a731aSbostic _res.retrans = 30; 595912a731aSbostic _res.retry = 2; 596912a731aSbostic } 597d4bd8f0eSbostic #endif 598912a731aSbostic 59951552439Seric m = to->q_mailer; 60051552439Seric host = to->q_host; 601c9be6216Seric CurEnv = e; /* just in case */ 6024384d521Seric e->e_statmsg = NULL; 603df106f0bSeric SmtpError[0] = '\0'; 60451552439Seric 6056ef48975Seric if (tTd(10, 1)) 606562ec147Seric printf("\n--deliver, id=%s, mailer=%s, host=`%s', first user=`%s'\n", 607562ec147Seric e->e_id, m->m_name, host, to->q_user); 608ab81ee53Seric if (tTd(10, 100)) 609ab81ee53Seric printopenfds(FALSE); 610f3dbc832Seric 611f3dbc832Seric /* 612f3dbc832Seric ** If this mailer is expensive, and if we don't want to make 613f3dbc832Seric ** connections now, just mark these addresses and return. 614f3dbc832Seric ** This is useful if we want to batch connections to 615f3dbc832Seric ** reduce load. This will cause the messages to be 616f3dbc832Seric ** queued up, and a daemon will come along to send the 617f3dbc832Seric ** messages later. 618f3dbc832Seric ** This should be on a per-mailer basis. 619f3dbc832Seric */ 620f3dbc832Seric 62179aa5155Seric if (NoConnect && bitnset(M_EXPENSIVE, m->m_flags) && !Verbose) 622f3dbc832Seric { 623f3dbc832Seric for (; to != NULL; to = to->q_next) 624f4560e80Seric { 625ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 626c6e18ac5Seric to->q_mailer != m) 627f4560e80Seric continue; 628268a25e1Seric to->q_flags |= QQUEUEUP; 629588cad61Seric e->e_to = to->q_paddr; 63008b25121Seric message("queued"); 6312f624c86Seric if (LogLevel > 8) 6324dee0003Seric logdelivery(m, NULL, "queued", NULL, e); 633f4560e80Seric } 634588cad61Seric e->e_to = NULL; 635f3dbc832Seric return (0); 636f3dbc832Seric } 637f3dbc832Seric 63825a99e2eSeric /* 6395dfc646bSeric ** Do initial argv setup. 6405dfc646bSeric ** Insert the mailer name. Notice that $x expansion is 6415dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 6425dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 6435dfc646bSeric ** code does not check for 'pv' overflow; this places a 6445dfc646bSeric ** manifest lower limit of 4 for MAXPV. 6453bea8136Seric ** The from address rewrite is expected to make 6463bea8136Seric ** the address relative to the other end. 6475dfc646bSeric */ 6485dfc646bSeric 64978442df3Seric /* rewrite from address, using rewriting rules */ 650efe54562Seric rcode = EX_OK; 651efe54562Seric (void) strcpy(rpathbuf, remotename(e->e_from.q_paddr, m, 652efe54562Seric RF_SENDERADDR|RF_CANONICAL, 653efe54562Seric &rcode, e)); 654ee4b0922Seric define('g', rpathbuf, e); /* translated return path */ 655588cad61Seric define('h', host, e); /* to host */ 6565dfc646bSeric Errors = 0; 6575dfc646bSeric pvp = pv; 6585dfc646bSeric *pvp++ = m->m_argv[0]; 6595dfc646bSeric 6605dfc646bSeric /* insert -f or -r flag as appropriate */ 66157fc6f17Seric if (FromFlag && (bitnset(M_FOPT, m->m_flags) || bitnset(M_ROPT, m->m_flags))) 6625dfc646bSeric { 66357fc6f17Seric if (bitnset(M_FOPT, m->m_flags)) 6645dfc646bSeric *pvp++ = "-f"; 6655dfc646bSeric else 6665dfc646bSeric *pvp++ = "-r"; 667c23ed322Seric *pvp++ = newstr(rpathbuf); 6685dfc646bSeric } 6695dfc646bSeric 6705dfc646bSeric /* 6715dfc646bSeric ** Append the other fixed parts of the argv. These run 6725dfc646bSeric ** up to the first entry containing "$u". There can only 6735dfc646bSeric ** be one of these, and there are only a few more slots 6745dfc646bSeric ** in the pv after it. 6755dfc646bSeric */ 6765dfc646bSeric 6775dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 6785dfc646bSeric { 6792bc47524Seric /* can't use strchr here because of sign extension problems */ 6802bc47524Seric while (*p != '\0') 6812bc47524Seric { 6822bc47524Seric if ((*p++ & 0377) == MACROEXPAND) 6832bc47524Seric { 6842bc47524Seric if (*p == 'u') 6855dfc646bSeric break; 6862bc47524Seric } 6872bc47524Seric } 6882bc47524Seric 6892bc47524Seric if (*p != '\0') 6905dfc646bSeric break; 6915dfc646bSeric 6925dfc646bSeric /* this entry is safe -- go ahead and process it */ 693588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 6945dfc646bSeric *pvp++ = newstr(buf); 6955dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 6965dfc646bSeric { 69708b25121Seric syserr("554 Too many parameters to %s before $u", pv[0]); 6985dfc646bSeric return (-1); 6995dfc646bSeric } 7005dfc646bSeric } 701c579ef51Seric 70233db8731Seric /* 70333db8731Seric ** If we have no substitution for the user name in the argument 70433db8731Seric ** list, we know that we must supply the names otherwise -- and 70533db8731Seric ** SMTP is the answer!! 70633db8731Seric */ 70733db8731Seric 7085dfc646bSeric if (*mvp == NULL) 709c579ef51Seric { 710c579ef51Seric /* running SMTP */ 7112c7e1b8dSeric # ifdef SMTP 712c579ef51Seric clever = TRUE; 713c579ef51Seric *pvp = NULL; 7146c2c3107Seric # else /* SMTP */ 71533db8731Seric /* oops! we don't implement SMTP */ 716df106f0bSeric syserr("554 SMTP style mailer not implemented"); 7172c7e1b8dSeric return (EX_SOFTWARE); 7186c2c3107Seric # endif /* SMTP */ 719c579ef51Seric } 7205dfc646bSeric 7215dfc646bSeric /* 7225dfc646bSeric ** At this point *mvp points to the argument with $u. We 7235dfc646bSeric ** run through our address list and append all the addresses 7245dfc646bSeric ** we can. If we run out of space, do not fret! We can 7255dfc646bSeric ** always send another copy later. 7265dfc646bSeric */ 7275dfc646bSeric 7285dfc646bSeric tobuf[0] = '\0'; 729588cad61Seric e->e_to = tobuf; 7306259796dSeric ctladdr = NULL; 731e103b48fSeric firstsig = hostsignature(firstto->q_mailer, firstto->q_host, e); 7325dfc646bSeric for (; to != NULL; to = to->q_next) 7335dfc646bSeric { 7345dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 73557fc6f17Seric if (tobuf[0] != '\0' && !bitnset(M_MUSER, m->m_flags)) 7365dfc646bSeric break; 7375dfc646bSeric 7385dfc646bSeric /* if already sent or not for this host, don't send */ 739ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 740e103b48fSeric to->q_mailer != firstto->q_mailer || 741e103b48fSeric strcmp(hostsignature(to->q_mailer, to->q_host, e), firstsig) != 0) 7425dfc646bSeric continue; 7436259796dSeric 7444b22ea87Seric /* avoid overflowing tobuf */ 745aa50a568Sbostic if (sizeof tobuf < (strlen(to->q_paddr) + strlen(tobuf) + 2)) 7464b22ea87Seric break; 7474b22ea87Seric 7486ef48975Seric if (tTd(10, 1)) 749772e6e50Seric { 750772e6e50Seric printf("\nsend to "); 751772e6e50Seric printaddr(to, FALSE); 752772e6e50Seric } 753772e6e50Seric 7546259796dSeric /* compute effective uid/gid when sending */ 755960e665aSeric /* XXX perhaps this should be to->q_mailer != LocalMailer ?? */ 756960e665aSeric /* XXX perhaps it should be a mailer flag? */ 757960e665aSeric if (to->q_mailer == ProgMailer || to->q_mailer == FileMailer) 7586259796dSeric ctladdr = getctladdr(to); 7596259796dSeric 7605dfc646bSeric user = to->q_user; 761588cad61Seric e->e_to = to->q_paddr; 76275f1ade9Seric if (tTd(10, 5)) 76375f1ade9Seric { 76475f1ade9Seric printf("deliver: QDONTSEND "); 76575f1ade9Seric printaddr(to, FALSE); 76675f1ade9Seric } 767ee4b0922Seric to->q_flags |= QDONTSEND; 7685dfc646bSeric 7695dfc646bSeric /* 7705dfc646bSeric ** Check to see that these people are allowed to 7715dfc646bSeric ** talk to each other. 7722a6e0786Seric */ 7732a6e0786Seric 77469582d2fSeric if (m->m_maxsize != 0 && e->e_msgsize > m->m_maxsize) 77569582d2fSeric { 77669582d2fSeric NoReturn = TRUE; 77708b25121Seric usrerr("552 Message is too large; %ld bytes max", m->m_maxsize); 7784dee0003Seric giveresponse(EX_UNAVAILABLE, m, NULL, ctladdr, e); 77969582d2fSeric continue; 78069582d2fSeric } 781fabb3bd4Seric rcode = checkcompat(to, e); 7821793c9c5Seric if (rcode != EX_OK) 7835dfc646bSeric { 7841000c37aSeric markfailure(e, to, rcode); 7854dee0003Seric giveresponse(rcode, m, NULL, ctladdr, e); 7865dfc646bSeric continue; 7875dfc646bSeric } 7882a6e0786Seric 7892a6e0786Seric /* 7909ec9501bSeric ** Strip quote bits from names if the mailer is dumb 7919ec9501bSeric ** about them. 79225a99e2eSeric */ 79325a99e2eSeric 79457fc6f17Seric if (bitnset(M_STRIPQ, m->m_flags)) 79525a99e2eSeric { 7961d8f1806Seric stripquotes(user); 7971d8f1806Seric stripquotes(host); 79825a99e2eSeric } 79925a99e2eSeric 800cdb828c5Seric /* hack attack -- delivermail compatibility */ 801cdb828c5Seric if (m == ProgMailer && *user == '|') 802cdb828c5Seric user++; 803cdb828c5Seric 80425a99e2eSeric /* 8053efaed6eSeric ** If an error message has already been given, don't 8063efaed6eSeric ** bother to send to this address. 8073efaed6eSeric ** 8083efaed6eSeric ** >>>>>>>>>> This clause assumes that the local mailer 8093efaed6eSeric ** >> NOTE >> cannot do any further aliasing; that 8103efaed6eSeric ** >>>>>>>>>> function is subsumed by sendmail. 8113efaed6eSeric */ 8123efaed6eSeric 8136cae517dSeric if (bitset(QBADADDR|QQUEUEUP, to->q_flags)) 8143efaed6eSeric continue; 8153efaed6eSeric 816f2fec898Seric /* save statistics.... */ 817588cad61Seric markstats(e, to); 818f2fec898Seric 8193efaed6eSeric /* 82025a99e2eSeric ** See if this user name is "special". 82125a99e2eSeric ** If the user name has a slash in it, assume that this 82251552439Seric ** is a file -- send it off without further ado. Note 82351552439Seric ** that this type of addresses is not processed along 82451552439Seric ** with the others, so we fudge on the To person. 82525a99e2eSeric */ 82625a99e2eSeric 8272c017f8dSeric if (m == FileMailer) 82825a99e2eSeric { 82903463a75Seric rcode = mailfile(user, ctladdr, e); 83003463a75Seric giveresponse(rcode, m, NULL, ctladdr, e); 831dde5acadSeric if (rcode == EX_OK) 832dde5acadSeric to->q_flags |= QSENT; 8335dfc646bSeric continue; 83425a99e2eSeric } 83525a99e2eSeric 83613bbc08cSeric /* 83713bbc08cSeric ** Address is verified -- add this user to mailer 83813bbc08cSeric ** argv, and add it to the print list of recipients. 83913bbc08cSeric */ 84013bbc08cSeric 841508daeccSeric /* link together the chain of recipients */ 842508daeccSeric to->q_tchain = tochain; 843508daeccSeric tochain = to; 844508daeccSeric 8455dfc646bSeric /* create list of users for error messages */ 846db8841e9Seric (void) strcat(tobuf, ","); 847db8841e9Seric (void) strcat(tobuf, to->q_paddr); 848588cad61Seric define('u', user, e); /* to user */ 849b6f89e6eSeric p = to->q_home; 850b6f89e6eSeric if (p == NULL && ctladdr != NULL) 851b6f89e6eSeric p = ctladdr->q_home; 852b6f89e6eSeric define('z', p, e); /* user's home */ 8535dfc646bSeric 854c579ef51Seric /* 855508daeccSeric ** Expand out this user into argument list. 856c579ef51Seric */ 857c579ef51Seric 858508daeccSeric if (!clever) 859c579ef51Seric { 860588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8615dfc646bSeric *pvp++ = newstr(buf); 8625dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 8635dfc646bSeric { 8645dfc646bSeric /* allow some space for trailing parms */ 8655dfc646bSeric break; 8665dfc646bSeric } 8675dfc646bSeric } 868c579ef51Seric } 8695dfc646bSeric 870145b49b1Seric /* see if any addresses still exist */ 871145b49b1Seric if (tobuf[0] == '\0') 872c579ef51Seric { 873588cad61Seric define('g', (char *) NULL, e); 874145b49b1Seric return (0); 875c579ef51Seric } 876145b49b1Seric 8775dfc646bSeric /* print out messages as full list */ 87863780dbdSeric e->e_to = tobuf + 1; 8795dfc646bSeric 8805dfc646bSeric /* 8815dfc646bSeric ** Fill out any parameters after the $u parameter. 8825dfc646bSeric */ 8835dfc646bSeric 884c579ef51Seric while (!clever && *++mvp != NULL) 8855dfc646bSeric { 886588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 8875dfc646bSeric *pvp++ = newstr(buf); 8885dfc646bSeric if (pvp >= &pv[MAXPV]) 88908b25121Seric syserr("554 deliver: pv overflow after $u for %s", pv[0]); 8905dfc646bSeric } 8915dfc646bSeric *pvp++ = NULL; 8925dfc646bSeric 89325a99e2eSeric /* 89425a99e2eSeric ** Call the mailer. 8956328bdf7Seric ** The argument vector gets built, pipes 89625a99e2eSeric ** are created as necessary, and we fork & exec as 8976328bdf7Seric ** appropriate. 898c579ef51Seric ** If we are running SMTP, we just need to clean up. 89925a99e2eSeric */ 90025a99e2eSeric 901960e665aSeric /*XXX this seems a bit wierd */ 9024899f6b5Seric if (ctladdr == NULL && m != ProgMailer && 9034899f6b5Seric bitset(QGOODUID, e->e_from.q_flags)) 904960e665aSeric ctladdr = &e->e_from; 905960e665aSeric 906134746fbSeric #ifdef NAMED_BIND 9072bcc6d2dSeric if (ConfigLevel < 2) 908912a731aSbostic _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 909134746fbSeric #endif 9109c9e68d9Seric 9119c9e68d9Seric if (tTd(11, 1)) 912134746fbSeric { 9139c9e68d9Seric printf("openmailer:"); 9149c9e68d9Seric printav(pv); 9159c9e68d9Seric } 9169c9e68d9Seric errno = 0; 9179c9e68d9Seric 9189c9e68d9Seric CurHostName = m->m_mailer; 9199c9e68d9Seric 9209c9e68d9Seric /* 9219c9e68d9Seric ** Deal with the special case of mail handled through an IPC 9229c9e68d9Seric ** connection. 9239c9e68d9Seric ** In this case we don't actually fork. We must be 9249c9e68d9Seric ** running SMTP for this to work. We will return a 9259c9e68d9Seric ** zero pid to indicate that we are running IPC. 9269c9e68d9Seric ** We also handle a debug version that just talks to stdin/out. 9279c9e68d9Seric */ 9289c9e68d9Seric 9299c9e68d9Seric curhost = NULL; 930c931b82bSeric SmtpPhase = NULL; 931df106f0bSeric mci = NULL; 9329c9e68d9Seric 9337febfd66Seric #ifdef XDEBUG 9347febfd66Seric { 9357febfd66Seric char wbuf[MAXLINE]; 9367febfd66Seric 9377febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 9387febfd66Seric sprintf(wbuf, "%s... openmailer(%s)", e->e_to, m->m_name); 9397febfd66Seric checkfd012(wbuf); 9407febfd66Seric } 9417febfd66Seric #endif 9427febfd66Seric 9439c9e68d9Seric /* check for Local Person Communication -- not for mortals!!! */ 9449c9e68d9Seric if (strcmp(m->m_mailer, "[LPC]") == 0) 9459c9e68d9Seric { 9469c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 9479c9e68d9Seric bzero((char *) mci, sizeof *mci); 9489c9e68d9Seric mci->mci_in = stdin; 9499c9e68d9Seric mci->mci_out = stdout; 9509c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 9519c9e68d9Seric mci->mci_mailer = m; 9529c9e68d9Seric } 9539c9e68d9Seric else if (strcmp(m->m_mailer, "[IPC]") == 0 || 9549c9e68d9Seric strcmp(m->m_mailer, "[TCP]") == 0) 9559c9e68d9Seric { 9569c9e68d9Seric #ifdef DAEMON 9579c9e68d9Seric register int i; 9589c9e68d9Seric register u_short port; 9599c9e68d9Seric 960a5d44642Seric if (pv[0] == NULL || pv[1] == NULL || pv[1][0] == '\0') 961a5d44642Seric { 962a5d44642Seric syserr("null host name for %s mailer", m->m_mailer); 963a5d44642Seric rcode = EX_CONFIG; 964a5d44642Seric goto give_up; 965a5d44642Seric } 966a5d44642Seric 9679c9e68d9Seric CurHostName = pv[1]; 9689c9e68d9Seric curhost = hostsignature(m, pv[1], e); 9699c9e68d9Seric 9709c9e68d9Seric if (curhost == NULL || curhost[0] == '\0') 9719c9e68d9Seric { 972a5d44642Seric syserr("null host signature for %s", pv[1]); 973845e533cSeric rcode = EX_OSERR; 974b31e7f2bSeric goto give_up; 975b31e7f2bSeric } 9769c9e68d9Seric 9779c9e68d9Seric if (!clever) 9789c9e68d9Seric { 9799c9e68d9Seric syserr("554 non-clever IPC"); 980df106f0bSeric rcode = EX_CONFIG; 9819c9e68d9Seric goto give_up; 9829c9e68d9Seric } 9839c9e68d9Seric if (pv[2] != NULL) 9849c9e68d9Seric port = atoi(pv[2]); 9859c9e68d9Seric else 9869c9e68d9Seric port = 0; 9879c9e68d9Seric tryhost: 9889c9e68d9Seric while (*curhost != '\0') 9899c9e68d9Seric { 9909c9e68d9Seric register char *p; 9919c9e68d9Seric static char hostbuf[MAXNAME]; 9929c9e68d9Seric 9939c9e68d9Seric /* pull the next host from the signature */ 9949c9e68d9Seric p = strchr(curhost, ':'); 9959c9e68d9Seric if (p == NULL) 9969c9e68d9Seric p = &curhost[strlen(curhost)]; 997df106f0bSeric if (p == curhost) 998df106f0bSeric { 999df106f0bSeric syserr("deliver: null host name in signature"); 10008087428aSeric curhost++; 1001df106f0bSeric continue; 1002df106f0bSeric } 10039c9e68d9Seric strncpy(hostbuf, curhost, p - curhost); 10049c9e68d9Seric hostbuf[p - curhost] = '\0'; 10059c9e68d9Seric if (*p != '\0') 10069c9e68d9Seric p++; 10079c9e68d9Seric curhost = p; 10089c9e68d9Seric 10099c9e68d9Seric /* see if we already know that this host is fried */ 10109c9e68d9Seric CurHostName = hostbuf; 10119c9e68d9Seric mci = mci_get(hostbuf, m); 10129c9e68d9Seric if (mci->mci_state != MCIS_CLOSED) 10139c9e68d9Seric { 10149c9e68d9Seric if (tTd(11, 1)) 10159c9e68d9Seric { 10169c9e68d9Seric printf("openmailer: "); 10174052916eSeric mci_dump(mci, FALSE); 10189c9e68d9Seric } 10199c9e68d9Seric CurHostName = mci->mci_host; 10209c9e68d9Seric break; 10219c9e68d9Seric } 10229c9e68d9Seric mci->mci_mailer = m; 10239c9e68d9Seric if (mci->mci_exitstat != EX_OK) 10249c9e68d9Seric continue; 10259c9e68d9Seric 10269c9e68d9Seric /* try the connection */ 10279c9e68d9Seric setproctitle("%s %s: %s", e->e_id, hostbuf, "user open"); 10289c9e68d9Seric message("Connecting to %s (%s)...", 10299c9e68d9Seric hostbuf, m->m_name); 10309c9e68d9Seric i = makeconnection(hostbuf, port, mci, 10319c9e68d9Seric bitnset(M_SECURE_PORT, m->m_flags)); 10329c9e68d9Seric mci->mci_exitstat = i; 10339c9e68d9Seric mci->mci_errno = errno; 1034f170942cSeric #ifdef NAMED_BIND 1035f170942cSeric mci->mci_herrno = h_errno; 1036f170942cSeric #endif 10379c9e68d9Seric if (i == EX_OK) 10389c9e68d9Seric { 10399c9e68d9Seric mci->mci_state = MCIS_OPENING; 10409c9e68d9Seric mci_cache(mci); 1041f170942cSeric if (TrafficLogFile != NULL) 1042f170942cSeric fprintf(TrafficLogFile, "%05d == CONNECT %s\n", 1043f170942cSeric getpid(), hostbuf); 10449c9e68d9Seric break; 10459c9e68d9Seric } 10469c9e68d9Seric else if (tTd(11, 1)) 10479c9e68d9Seric printf("openmailer: makeconnection => stat=%d, errno=%d\n", 10489c9e68d9Seric i, errno); 10499c9e68d9Seric 10509c9e68d9Seric /* enter status of this host */ 10519c9e68d9Seric setstat(i); 1052df106f0bSeric 1053df106f0bSeric /* should print some message here for -v mode */ 1054df106f0bSeric } 1055df106f0bSeric if (mci == NULL) 1056df106f0bSeric { 1057df106f0bSeric syserr("deliver: no host name"); 1058df106f0bSeric rcode = EX_OSERR; 1059df106f0bSeric goto give_up; 10609c9e68d9Seric } 10619c9e68d9Seric mci->mci_pid = 0; 10629c9e68d9Seric #else /* no DAEMON */ 10639c9e68d9Seric syserr("554 openmailer: no IPC"); 10649c9e68d9Seric if (tTd(11, 1)) 10659c9e68d9Seric printf("openmailer: NULL\n"); 1066df106f0bSeric rcode = EX_UNAVAILABLE; 1067df106f0bSeric goto give_up; 10689c9e68d9Seric #endif /* DAEMON */ 10699c9e68d9Seric } 10709c9e68d9Seric else 10719c9e68d9Seric { 1072f170942cSeric if (TrafficLogFile != NULL) 10730e3bfef5Seric { 1074f170942cSeric char **av; 1075f170942cSeric 1076f170942cSeric fprintf(TrafficLogFile, "%05d === EXEC", getpid()); 1077f170942cSeric for (av = pv; *av != NULL; av++) 1078f170942cSeric fprintf(TrafficLogFile, " %s", *av); 1079f170942cSeric fprintf(TrafficLogFile, "\n"); 10806fe8c3bcSeric } 10816fe8c3bcSeric 10829c9e68d9Seric /* create a pipe to shove the mail through */ 10839c9e68d9Seric if (pipe(mpvect) < 0) 10849c9e68d9Seric { 10850e3bfef5Seric syserr("%s... openmailer(%s): pipe (to mailer)", 10860e3bfef5Seric e->e_to, m->m_name); 10879c9e68d9Seric if (tTd(11, 1)) 10889c9e68d9Seric printf("openmailer: NULL\n"); 10899c9e68d9Seric rcode = EX_OSERR; 10909c9e68d9Seric goto give_up; 10919c9e68d9Seric } 10929c9e68d9Seric 10939c9e68d9Seric /* if this mailer speaks smtp, create a return pipe */ 10949c9e68d9Seric if (clever && pipe(rpvect) < 0) 10959c9e68d9Seric { 10960e3bfef5Seric syserr("%s... openmailer(%s): pipe (from mailer)", 10970e3bfef5Seric e->e_to, m->m_name); 10989c9e68d9Seric (void) close(mpvect[0]); 10999c9e68d9Seric (void) close(mpvect[1]); 11009c9e68d9Seric if (tTd(11, 1)) 11019c9e68d9Seric printf("openmailer: NULL\n"); 11029c9e68d9Seric rcode = EX_OSERR; 11039c9e68d9Seric goto give_up; 11049c9e68d9Seric } 11059c9e68d9Seric 11069c9e68d9Seric /* 11079c9e68d9Seric ** Actually fork the mailer process. 11089c9e68d9Seric ** DOFORK is clever about retrying. 11099c9e68d9Seric ** 11109c9e68d9Seric ** Dispose of SIGCHLD signal catchers that may be laying 11119c9e68d9Seric ** around so that endmail will get it. 11129c9e68d9Seric */ 11139c9e68d9Seric 11149c9e68d9Seric if (e->e_xfp != NULL) 11159c9e68d9Seric (void) fflush(e->e_xfp); /* for debugging */ 11169c9e68d9Seric (void) fflush(stdout); 11179c9e68d9Seric # ifdef SIGCHLD 11182b9178d3Seric (void) setsignal(SIGCHLD, SIG_DFL); 11199c9e68d9Seric # endif /* SIGCHLD */ 11209c9e68d9Seric DOFORK(FORK); 11219c9e68d9Seric /* pid is set by DOFORK */ 11229c9e68d9Seric if (pid < 0) 11239c9e68d9Seric { 11249c9e68d9Seric /* failure */ 11250e3bfef5Seric syserr("%s... openmailer(%s): cannot fork", 11260e3bfef5Seric e->e_to, m->m_name); 11279c9e68d9Seric (void) close(mpvect[0]); 11289c9e68d9Seric (void) close(mpvect[1]); 11299c9e68d9Seric if (clever) 11309c9e68d9Seric { 11319c9e68d9Seric (void) close(rpvect[0]); 11329c9e68d9Seric (void) close(rpvect[1]); 11339c9e68d9Seric } 11349c9e68d9Seric if (tTd(11, 1)) 11359c9e68d9Seric printf("openmailer: NULL\n"); 11369c9e68d9Seric rcode = EX_OSERR; 11379c9e68d9Seric goto give_up; 11389c9e68d9Seric } 11399c9e68d9Seric else if (pid == 0) 11409c9e68d9Seric { 11419c9e68d9Seric int i; 11429c9e68d9Seric int saveerrno; 11439c9e68d9Seric char **ep; 11449c9e68d9Seric char *env[MAXUSERENVIRON]; 11459c9e68d9Seric extern char **environ; 11469c9e68d9Seric extern int DtableSize; 11479c9e68d9Seric 11489c9e68d9Seric /* child -- set up input & exec mailer */ 11492b9178d3Seric (void) setsignal(SIGINT, SIG_IGN); 11502b9178d3Seric (void) setsignal(SIGHUP, SIG_IGN); 11512b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 11529c9e68d9Seric 115344f2317fSeric /* reset user and group */ 115444f2317fSeric if (!bitnset(M_RESTR, m->m_flags)) 115544f2317fSeric { 115644f2317fSeric if (ctladdr == NULL || ctladdr->q_uid == 0) 115744f2317fSeric { 115844f2317fSeric (void) initgroups(DefUser, DefGid); 1159fc354902Seric (void) setgid(DefGid); 116044f2317fSeric (void) setuid(DefUid); 116144f2317fSeric } 116244f2317fSeric else 116344f2317fSeric { 116444f2317fSeric (void) initgroups(ctladdr->q_ruser? 116544f2317fSeric ctladdr->q_ruser: ctladdr->q_user, 116644f2317fSeric ctladdr->q_gid); 116751cfe111Seric (void) setgid(ctladdr->q_gid); 116844f2317fSeric (void) setuid(ctladdr->q_uid); 116944f2317fSeric } 117044f2317fSeric } 117144f2317fSeric 117244f2317fSeric if (tTd(11, 2)) 117344f2317fSeric printf("openmailer: running as r/euid=%d/%d\n", 117444f2317fSeric getuid(), geteuid()); 117544f2317fSeric 1176b986f6aaSeric /* move into some "safe" directory */ 1177b986f6aaSeric if (m->m_execdir != NULL) 1178b986f6aaSeric { 1179b986f6aaSeric char *p, *q; 1180b986f6aaSeric char buf[MAXLINE]; 1181b986f6aaSeric 1182b986f6aaSeric for (p = m->m_execdir; p != NULL; p = q) 1183b986f6aaSeric { 1184b986f6aaSeric q = strchr(p, ':'); 1185b986f6aaSeric if (q != NULL) 1186b986f6aaSeric *q = '\0'; 1187b986f6aaSeric expand(p, buf, &buf[sizeof buf] - 1, e); 1188b986f6aaSeric if (q != NULL) 1189b986f6aaSeric *q++ = ':'; 1190b986f6aaSeric if (tTd(11, 20)) 1191b986f6aaSeric printf("openmailer: trydir %s\n", 1192b986f6aaSeric buf); 1193b986f6aaSeric if (buf[0] != '\0' && chdir(buf) >= 0) 1194b986f6aaSeric break; 1195b986f6aaSeric } 1196b986f6aaSeric } 1197b986f6aaSeric 11989c9e68d9Seric /* arrange to filter std & diag output of command */ 11999c9e68d9Seric if (clever) 12009c9e68d9Seric { 12019c9e68d9Seric (void) close(rpvect[0]); 12026fe8c3bcSeric if (dup2(rpvect[1], STDOUT_FILENO) < 0) 12036fe8c3bcSeric { 12040e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdout", 12050e3bfef5Seric e->e_to, m->m_name, rpvect[1]); 12066fe8c3bcSeric _exit(EX_OSERR); 12076fe8c3bcSeric } 12089c9e68d9Seric (void) close(rpvect[1]); 12099c9e68d9Seric } 1210*8b40b0a4Seric else if (OpMode == MD_SMTP || OpMode == MD_DAEMON || 1211*8b40b0a4Seric HoldErrs || DisConnected) 12129c9e68d9Seric { 12139c9e68d9Seric /* put mailer output in transcript */ 12146fe8c3bcSeric if (dup2(fileno(e->e_xfp), STDOUT_FILENO) < 0) 12156fe8c3bcSeric { 12160e3bfef5Seric syserr("%s... openmailer(%s): cannot dup xscript %d for stdout", 12170e3bfef5Seric e->e_to, m->m_name, 12186fe8c3bcSeric fileno(e->e_xfp)); 12196fe8c3bcSeric _exit(EX_OSERR); 12209c9e68d9Seric } 12216fe8c3bcSeric } 12226fe8c3bcSeric if (dup2(STDOUT_FILENO, STDERR_FILENO) < 0) 12236fe8c3bcSeric { 12240e3bfef5Seric syserr("%s... openmailer(%s): cannot dup stdout for stderr", 12250e3bfef5Seric e->e_to, m->m_name); 12266fe8c3bcSeric _exit(EX_OSERR); 12276fe8c3bcSeric } 12289c9e68d9Seric 12299c9e68d9Seric /* arrange to get standard input */ 12309c9e68d9Seric (void) close(mpvect[1]); 12319c9e68d9Seric if (dup2(mpvect[0], STDIN_FILENO) < 0) 12329c9e68d9Seric { 12330e3bfef5Seric syserr("%s... openmailer(%s): cannot dup pipe %d for stdin", 12340e3bfef5Seric e->e_to, m->m_name, mpvect[0]); 12359c9e68d9Seric _exit(EX_OSERR); 12369c9e68d9Seric } 12379c9e68d9Seric (void) close(mpvect[0]); 12389c9e68d9Seric 12399c9e68d9Seric /* arrange for all the files to be closed */ 12409c9e68d9Seric for (i = 3; i < DtableSize; i++) 12419c9e68d9Seric { 12429c9e68d9Seric register int j; 124344f2317fSeric 12449c9e68d9Seric if ((j = fcntl(i, F_GETFD, 0)) != -1) 12459c9e68d9Seric (void) fcntl(i, F_SETFD, j | 1); 12469c9e68d9Seric } 12479c9e68d9Seric 12489f9b003eSeric /* 12499f9b003eSeric ** Set up the mailer environment 12509f9b003eSeric ** TZ is timezone information. 12519f9b003eSeric ** SYSTYPE is Apollo software sys type (required). 12529f9b003eSeric ** ISP is Apollo hardware system type (required). 12539f9b003eSeric */ 12549f9b003eSeric 12559c9e68d9Seric i = 0; 12569c9e68d9Seric env[i++] = "AGENT=sendmail"; 12579c9e68d9Seric for (ep = environ; *ep != NULL; ep++) 12589c9e68d9Seric { 12599f9b003eSeric if (strncmp(*ep, "TZ=", 3) == 0 || 12609f9b003eSeric strncmp(*ep, "ISP=", 4) == 0 || 12619f9b003eSeric strncmp(*ep, "SYSTYPE=", 8) == 0) 12629c9e68d9Seric env[i++] = *ep; 12639c9e68d9Seric } 12649c9e68d9Seric env[i++] = NULL; 12659c9e68d9Seric 12669c9e68d9Seric /* try to execute the mailer */ 12679c9e68d9Seric execve(m->m_mailer, pv, env); 12689c9e68d9Seric saveerrno = errno; 12699c9e68d9Seric syserr("Cannot exec %s", m->m_mailer); 12707c941fd2Seric if (m == LocalMailer || transienterror(saveerrno)) 12717c941fd2Seric _exit(EX_OSERR); 12729c9e68d9Seric _exit(EX_UNAVAILABLE); 12739c9e68d9Seric } 12749c9e68d9Seric 12759c9e68d9Seric /* 12769c9e68d9Seric ** Set up return value. 12779c9e68d9Seric */ 12789c9e68d9Seric 12799c9e68d9Seric mci = (MCI *) xalloc(sizeof *mci); 12809c9e68d9Seric bzero((char *) mci, sizeof *mci); 12819c9e68d9Seric mci->mci_mailer = m; 12829c9e68d9Seric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 12839c9e68d9Seric mci->mci_pid = pid; 12849c9e68d9Seric (void) close(mpvect[0]); 12859c9e68d9Seric mci->mci_out = fdopen(mpvect[1], "w"); 1286335eae58Seric if (mci->mci_out == NULL) 1287335eae58Seric { 1288335eae58Seric syserr("deliver: cannot create mailer output channel, fd=%d", 1289335eae58Seric mpvect[1]); 1290335eae58Seric (void) close(mpvect[1]); 1291335eae58Seric if (clever) 1292335eae58Seric { 1293335eae58Seric (void) close(rpvect[0]); 1294335eae58Seric (void) close(rpvect[1]); 1295335eae58Seric } 1296335eae58Seric rcode = EX_OSERR; 1297335eae58Seric goto give_up; 1298335eae58Seric } 12999c9e68d9Seric if (clever) 13009c9e68d9Seric { 13019c9e68d9Seric (void) close(rpvect[1]); 13029c9e68d9Seric mci->mci_in = fdopen(rpvect[0], "r"); 1303335eae58Seric if (mci->mci_in == NULL) 1304335eae58Seric { 1305335eae58Seric syserr("deliver: cannot create mailer input channel, fd=%d", 1306335eae58Seric mpvect[1]); 1307335eae58Seric (void) close(rpvect[0]); 1308335eae58Seric fclose(mci->mci_out); 1309335eae58Seric mci->mci_out = NULL; 1310335eae58Seric rcode = EX_OSERR; 1311335eae58Seric goto give_up; 1312335eae58Seric } 13139c9e68d9Seric } 13149c9e68d9Seric else 13159c9e68d9Seric { 13169c9e68d9Seric mci->mci_flags |= MCIF_TEMP; 13179c9e68d9Seric mci->mci_in = NULL; 13189c9e68d9Seric } 13199c9e68d9Seric } 13209c9e68d9Seric 13219c9e68d9Seric /* 13229c9e68d9Seric ** If we are in SMTP opening state, send initial protocol. 13239c9e68d9Seric */ 13249c9e68d9Seric 13259c9e68d9Seric if (clever && mci->mci_state != MCIS_CLOSED) 13269c9e68d9Seric { 13279c9e68d9Seric smtpinit(m, mci, e); 13289c9e68d9Seric } 13299c9e68d9Seric if (tTd(11, 1)) 13309c9e68d9Seric { 13319c9e68d9Seric printf("openmailer: "); 13324052916eSeric mci_dump(mci, FALSE); 13339c9e68d9Seric } 13349c9e68d9Seric 13359c9e68d9Seric if (mci->mci_state != MCIS_OPEN) 1336b31e7f2bSeric { 1337b31e7f2bSeric /* couldn't open the mailer */ 1338b31e7f2bSeric rcode = mci->mci_exitstat; 13392a6bc25bSeric errno = mci->mci_errno; 1340f170942cSeric #ifdef NAMED_BIND 1341f170942cSeric h_errno = mci->mci_herrno; 1342f170942cSeric #endif 1343b31e7f2bSeric if (rcode == EX_OK) 1344b31e7f2bSeric { 1345b31e7f2bSeric /* shouldn't happen */ 134608b25121Seric syserr("554 deliver: rcode=%d, mci_state=%d, sig=%s", 13476b0f339dSeric rcode, mci->mci_state, firstsig); 1348b31e7f2bSeric rcode = EX_SOFTWARE; 1349b31e7f2bSeric } 1350cb082c5bSeric else if (rcode == EX_TEMPFAIL && curhost != NULL && *curhost != '\0') 135190891494Seric { 135290891494Seric /* try next MX site */ 135390891494Seric goto tryhost; 135490891494Seric } 1355b31e7f2bSeric } 1356b31e7f2bSeric else if (!clever) 1357b31e7f2bSeric { 1358b31e7f2bSeric /* 1359b31e7f2bSeric ** Format and send message. 1360b31e7f2bSeric */ 136115d084d5Seric 13625aa0f353Seric putfromline(mci, e); 13635aa0f353Seric (*e->e_puthdr)(mci, e); 13645aa0f353Seric putline("\n", mci); 13655aa0f353Seric (*e->e_putbody)(mci, e, NULL); 1366b31e7f2bSeric 1367b31e7f2bSeric /* get the exit status */ 1368c9be6216Seric rcode = endmailer(mci, e, pv); 1369134746fbSeric } 1370134746fbSeric else 1371b31e7f2bSeric #ifdef SMTP 1372134746fbSeric { 1373b31e7f2bSeric /* 1374b31e7f2bSeric ** Send the MAIL FROM: protocol 1375b31e7f2bSeric */ 137615d084d5Seric 1377b31e7f2bSeric rcode = smtpmailfrom(m, mci, e); 1378b31e7f2bSeric if (rcode == EX_OK) 137975889e88Seric { 1380ded0d3daSkarels register char *t = tobuf; 1381ded0d3daSkarels register int i; 1382ded0d3daSkarels 1383588cad61Seric /* send the recipient list */ 138463780dbdSeric tobuf[0] = '\0'; 138575889e88Seric for (to = tochain; to != NULL; to = to->q_tchain) 138675889e88Seric { 138763780dbdSeric e->e_to = to->q_paddr; 138815d084d5Seric if ((i = smtprcpt(to, m, mci, e)) != EX_OK) 138975889e88Seric { 139083b7ddc9Seric markfailure(e, to, i); 13914dee0003Seric giveresponse(i, m, mci, ctladdr, e); 139263780dbdSeric } 139375889e88Seric else 139475889e88Seric { 1395911693bfSbostic *t++ = ','; 1396b31e7f2bSeric for (p = to->q_paddr; *p; *t++ = *p++) 1397b31e7f2bSeric continue; 1398ee39df61Seric *t = '\0'; 1399588cad61Seric } 1400588cad61Seric } 1401588cad61Seric 140263780dbdSeric /* now send the data */ 140363780dbdSeric if (tobuf[0] == '\0') 1404b31e7f2bSeric { 14059c9e68d9Seric rcode = EX_OK; 140663780dbdSeric e->e_to = NULL; 1407b31e7f2bSeric if (bitset(MCIF_CACHED, mci->mci_flags)) 1408b31e7f2bSeric smtprset(m, mci, e); 1409b31e7f2bSeric } 141075889e88Seric else 141175889e88Seric { 141263780dbdSeric e->e_to = tobuf + 1; 141375889e88Seric rcode = smtpdata(m, mci, e); 141463780dbdSeric } 141563780dbdSeric 141663780dbdSeric /* now close the connection */ 1417b31e7f2bSeric if (!bitset(MCIF_CACHED, mci->mci_flags)) 141815d084d5Seric smtpquit(m, mci, e); 141963780dbdSeric } 1420cb082c5bSeric if (rcode != EX_OK && curhost != NULL && *curhost != '\0') 14219c9e68d9Seric { 14229c9e68d9Seric /* try next MX site */ 14239c9e68d9Seric goto tryhost; 14249c9e68d9Seric } 1425c579ef51Seric } 1426b31e7f2bSeric #else /* not SMTP */ 1427a05b3449Sbostic { 142808b25121Seric syserr("554 deliver: need SMTP compiled to use clever mailer"); 1429845e533cSeric rcode = EX_CONFIG; 1430b31e7f2bSeric goto give_up; 1431a05b3449Sbostic } 1432b31e7f2bSeric #endif /* SMTP */ 1433134746fbSeric #ifdef NAMED_BIND 14342bcc6d2dSeric if (ConfigLevel < 2) 1435912a731aSbostic _res.options |= RES_DEFNAMES | RES_DNSRCH; /* XXX */ 1436134746fbSeric #endif 14375dfc646bSeric 1438b31e7f2bSeric /* arrange a return receipt if requested */ 1439df106f0bSeric if (rcode == EX_OK && e->e_receiptto != NULL && 1440df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1441b31e7f2bSeric { 1442b31e7f2bSeric e->e_flags |= EF_SENDRECEIPT; 1443b31e7f2bSeric /* do we want to send back more info? */ 1444b31e7f2bSeric } 1445b31e7f2bSeric 1446c77d1c25Seric /* 144763780dbdSeric ** Do final status disposal. 144863780dbdSeric ** We check for something in tobuf for the SMTP case. 1449c77d1c25Seric ** If we got a temporary failure, arrange to queue the 1450c77d1c25Seric ** addressees. 1451c77d1c25Seric */ 1452c77d1c25Seric 1453b31e7f2bSeric give_up: 145463780dbdSeric if (tobuf[0] != '\0') 14554dee0003Seric giveresponse(rcode, m, mci, ctladdr, e); 1456772e6e50Seric for (to = tochain; to != NULL; to = to->q_tchain) 1457b31e7f2bSeric { 1458dde5acadSeric if (rcode != EX_OK) 145983b7ddc9Seric markfailure(e, to, rcode); 1460dde5acadSeric else 1461655518ecSeric { 1462dde5acadSeric to->q_flags |= QSENT; 1463655518ecSeric e->e_nsent++; 1464df106f0bSeric if (e->e_receiptto != NULL && 1465df106f0bSeric bitnset(M_LOCALMAILER, m->m_flags)) 1466df106f0bSeric { 1467df106f0bSeric fprintf(e->e_xfp, "%s... Successfully delivered\n", 1468df106f0bSeric to->q_paddr); 1469df106f0bSeric } 1470655518ecSeric } 1471b31e7f2bSeric } 1472b31e7f2bSeric 1473b31e7f2bSeric /* 1474b31e7f2bSeric ** Restore state and return. 1475b31e7f2bSeric */ 1476c77d1c25Seric 14777febfd66Seric #ifdef XDEBUG 14787febfd66Seric { 14797febfd66Seric char wbuf[MAXLINE]; 14807febfd66Seric 14817febfd66Seric /* make absolutely certain 0, 1, and 2 are in use */ 148244622ea3Seric sprintf(wbuf, "%s... end of deliver(%s)", 148344622ea3Seric e->e_to == NULL ? "NO-TO-LIST" : e->e_to, 148444622ea3Seric m->m_name); 14857febfd66Seric checkfd012(wbuf); 14867febfd66Seric } 14877febfd66Seric #endif 14887febfd66Seric 148935490626Seric errno = 0; 1490588cad61Seric define('g', (char *) NULL, e); 14915826d9d3Seric return (rcode); 149225a99e2eSeric } 14935dfc646bSeric /* 149483b7ddc9Seric ** MARKFAILURE -- mark a failure on a specific address. 149583b7ddc9Seric ** 149683b7ddc9Seric ** Parameters: 149783b7ddc9Seric ** e -- the envelope we are sending. 149883b7ddc9Seric ** q -- the address to mark. 149983b7ddc9Seric ** rcode -- the code signifying the particular failure. 150083b7ddc9Seric ** 150183b7ddc9Seric ** Returns: 150283b7ddc9Seric ** none. 150383b7ddc9Seric ** 150483b7ddc9Seric ** Side Effects: 150583b7ddc9Seric ** marks the address (and possibly the envelope) with the 150683b7ddc9Seric ** failure so that an error will be returned or 150783b7ddc9Seric ** the message will be queued, as appropriate. 150883b7ddc9Seric */ 150983b7ddc9Seric 151083b7ddc9Seric markfailure(e, q, rcode) 151183b7ddc9Seric register ENVELOPE *e; 151283b7ddc9Seric register ADDRESS *q; 151383b7ddc9Seric int rcode; 151483b7ddc9Seric { 151519c47125Seric char buf[MAXLINE]; 151619c47125Seric 1517d5aafa3cSeric switch (rcode) 1518d5aafa3cSeric { 1519d5aafa3cSeric case EX_OK: 1520d5aafa3cSeric break; 1521d5aafa3cSeric 1522d5aafa3cSeric case EX_TEMPFAIL: 1523d5aafa3cSeric case EX_IOERR: 1524d5aafa3cSeric case EX_OSERR: 152583b7ddc9Seric q->q_flags |= QQUEUEUP; 1526d5aafa3cSeric break; 1527d5aafa3cSeric 1528d5aafa3cSeric default: 1529f170942cSeric q->q_flags |= QBADADDR; 1530d5aafa3cSeric break; 1531d5aafa3cSeric } 153283b7ddc9Seric } 153383b7ddc9Seric /* 1534c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 1535c579ef51Seric ** 1536c579ef51Seric ** We should never get fatal errors (e.g., segmentation 1537c579ef51Seric ** violation), so we report those specially. For other 1538c579ef51Seric ** errors, we choose a status message (into statmsg), 1539c579ef51Seric ** and if it represents an error, we print it. 1540c579ef51Seric ** 1541c579ef51Seric ** Parameters: 1542c579ef51Seric ** pid -- pid of mailer. 1543c9be6216Seric ** e -- the current envelope. 1544c9be6216Seric ** pv -- the parameter vector that invoked the mailer 1545c9be6216Seric ** (for error messages). 1546c579ef51Seric ** 1547c579ef51Seric ** Returns: 1548c579ef51Seric ** exit code of mailer. 1549c579ef51Seric ** 1550c579ef51Seric ** Side Effects: 1551c579ef51Seric ** none. 1552c579ef51Seric */ 1553c579ef51Seric 1554c9be6216Seric endmailer(mci, e, pv) 1555b31e7f2bSeric register MCI *mci; 1556c9be6216Seric register ENVELOPE *e; 1557c9be6216Seric char **pv; 1558c579ef51Seric { 1559588cad61Seric int st; 1560c579ef51Seric 156175889e88Seric /* close any connections */ 156275889e88Seric if (mci->mci_in != NULL) 156376f3d53fSeric (void) xfclose(mci->mci_in, mci->mci_mailer->m_name, "mci_in"); 156475889e88Seric if (mci->mci_out != NULL) 156576f3d53fSeric (void) xfclose(mci->mci_out, mci->mci_mailer->m_name, "mci_out"); 156675889e88Seric mci->mci_in = mci->mci_out = NULL; 156775889e88Seric mci->mci_state = MCIS_CLOSED; 156875889e88Seric 156933db8731Seric /* in the IPC case there is nothing to wait for */ 157075889e88Seric if (mci->mci_pid == 0) 157133db8731Seric return (EX_OK); 157233db8731Seric 157333db8731Seric /* wait for the mailer process to die and collect status */ 157475889e88Seric st = waitfor(mci->mci_pid); 1575588cad61Seric if (st == -1) 157678de67c1Seric { 1577c9be6216Seric syserr("endmailer %s: wait", pv[0]); 1578588cad61Seric return (EX_SOFTWARE); 1579c579ef51Seric } 158033db8731Seric 1581bf9bc890Seric if (WIFEXITED(st)) 1582c579ef51Seric { 1583bf9bc890Seric /* normal death -- return status */ 1584bf9bc890Seric return (WEXITSTATUS(st)); 1585bf9bc890Seric } 1586bf9bc890Seric 1587bf9bc890Seric /* it died a horrid death */ 1588550092c3Seric syserr("451 mailer %s died with signal %o", 1589550092c3Seric mci->mci_mailer->m_name, st); 1590c9be6216Seric 1591c9be6216Seric /* log the arguments */ 15923c930db3Seric if (pv != NULL && e->e_xfp != NULL) 1593c9be6216Seric { 1594c9be6216Seric register char **av; 1595c9be6216Seric 1596c9be6216Seric fprintf(e->e_xfp, "Arguments:"); 1597c9be6216Seric for (av = pv; *av != NULL; av++) 1598c9be6216Seric fprintf(e->e_xfp, " %s", *av); 1599c9be6216Seric fprintf(e->e_xfp, "\n"); 1600c9be6216Seric } 1601c9be6216Seric 16025f73204aSeric ExitStat = EX_TEMPFAIL; 16035f73204aSeric return (EX_TEMPFAIL); 1604c579ef51Seric } 1605c579ef51Seric /* 160625a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 160725a99e2eSeric ** 160825a99e2eSeric ** Parameters: 160925a99e2eSeric ** stat -- the status code from the mailer (high byte 161025a99e2eSeric ** only; core dumps must have been taken care of 161125a99e2eSeric ** already). 161281161401Seric ** m -- the mailer info for this mailer. 161381161401Seric ** mci -- the mailer connection info -- can be NULL if the 161481161401Seric ** response is given before the connection is made. 16154dee0003Seric ** ctladdr -- the controlling address for the recipient 16164dee0003Seric ** address(es). 161781161401Seric ** e -- the current envelope. 161825a99e2eSeric ** 161925a99e2eSeric ** Returns: 1620db8841e9Seric ** none. 162125a99e2eSeric ** 162225a99e2eSeric ** Side Effects: 1623c1f9df2cSeric ** Errors may be incremented. 162425a99e2eSeric ** ExitStat may be set. 162525a99e2eSeric */ 162625a99e2eSeric 16274dee0003Seric giveresponse(stat, m, mci, ctladdr, e) 162825a99e2eSeric int stat; 1629588cad61Seric register MAILER *m; 163081161401Seric register MCI *mci; 16314dee0003Seric ADDRESS *ctladdr; 1632198d9be0Seric ENVELOPE *e; 163325a99e2eSeric { 16349c16475dSeric register const char *statmsg; 163525a99e2eSeric extern char *SysExMsg[]; 163625a99e2eSeric register int i; 1637d4bd8f0eSbostic extern int N_SysEx; 1638198d9be0Seric char buf[MAXLINE]; 163925a99e2eSeric 164013bbc08cSeric /* 164113bbc08cSeric ** Compute status message from code. 164213bbc08cSeric */ 164313bbc08cSeric 164425a99e2eSeric i = stat - EX__BASE; 1645588cad61Seric if (stat == 0) 16466fe8c3bcSeric { 1647588cad61Seric statmsg = "250 Sent"; 1648ce5531bdSeric if (e->e_statmsg != NULL) 16496fe8c3bcSeric { 1650ce5531bdSeric (void) sprintf(buf, "%s (%s)", statmsg, e->e_statmsg); 16516fe8c3bcSeric statmsg = buf; 16526fe8c3bcSeric } 16536fe8c3bcSeric } 1654588cad61Seric else if (i < 0 || i > N_SysEx) 1655588cad61Seric { 1656588cad61Seric (void) sprintf(buf, "554 unknown mailer error %d", stat); 1657588cad61Seric stat = EX_UNAVAILABLE; 1658588cad61Seric statmsg = buf; 1659588cad61Seric } 1660198d9be0Seric else if (stat == EX_TEMPFAIL) 1661198d9be0Seric { 16627d55540cSeric (void) strcpy(buf, SysExMsg[i] + 1); 1663d4bd8f0eSbostic #ifdef NAMED_BIND 1664f28da541Smiriam if (h_errno == TRY_AGAIN) 16654d50702aSeric statmsg = errstring(h_errno+E_DNSBASE); 1666f28da541Smiriam else 1667d4bd8f0eSbostic #endif 1668f28da541Smiriam { 16698557d168Seric if (errno != 0) 1670d87e85f3Seric statmsg = errstring(errno); 1671d87e85f3Seric else 1672d87e85f3Seric { 1673d87e85f3Seric #ifdef SMTP 1674d87e85f3Seric statmsg = SmtpError; 16756c2c3107Seric #else /* SMTP */ 1676d87e85f3Seric statmsg = NULL; 16776c2c3107Seric #endif /* SMTP */ 1678d87e85f3Seric } 1679f28da541Smiriam } 1680d87e85f3Seric if (statmsg != NULL && statmsg[0] != '\0') 1681d87e85f3Seric { 168287c9b3e7Seric (void) strcat(buf, ": "); 1683d87e85f3Seric (void) strcat(buf, statmsg); 16848557d168Seric } 1685198d9be0Seric statmsg = buf; 1686198d9be0Seric } 1687f170942cSeric #ifdef NAMED_BIND 1688f170942cSeric else if (stat == EX_NOHOST && h_errno != 0) 1689f170942cSeric { 16904d50702aSeric statmsg = errstring(h_errno + E_DNSBASE); 1691f170942cSeric (void) sprintf(buf, "%s (%s)", SysExMsg[i], statmsg); 1692f170942cSeric statmsg = buf; 1693f170942cSeric } 1694f170942cSeric #endif 169525a99e2eSeric else 1696d87e85f3Seric { 169725a99e2eSeric statmsg = SysExMsg[i]; 16987d55540cSeric if (*statmsg++ == ':') 16997d55540cSeric { 17007d55540cSeric (void) sprintf(buf, "%s: %s", statmsg, errstring(errno)); 17017d55540cSeric statmsg = buf; 17027d55540cSeric } 1703d87e85f3Seric } 1704588cad61Seric 1705588cad61Seric /* 1706588cad61Seric ** Print the message as appropriate 1707588cad61Seric */ 1708588cad61Seric 1709198d9be0Seric if (stat == EX_OK || stat == EX_TEMPFAIL) 1710df106f0bSeric { 1711df106f0bSeric extern char MsgBuf[]; 1712df106f0bSeric 1713e12d03eeSeric message(&statmsg[4], errstring(errno)); 1714df106f0bSeric if (stat == EX_TEMPFAIL && e->e_xfp != NULL) 1715df106f0bSeric fprintf(e->e_xfp, "%s\n", &MsgBuf[4]); 1716df106f0bSeric } 171725a99e2eSeric else 171825a99e2eSeric { 1719c1f9df2cSeric Errors++; 1720e12d03eeSeric usrerr(statmsg, errstring(errno)); 172125a99e2eSeric } 172225a99e2eSeric 172325a99e2eSeric /* 172425a99e2eSeric ** Final cleanup. 172525a99e2eSeric ** Log a record of the transaction. Compute the new 172625a99e2eSeric ** ExitStat -- if we already had an error, stick with 172725a99e2eSeric ** that. 172825a99e2eSeric */ 172925a99e2eSeric 17302f624c86Seric if (LogLevel > ((stat == EX_TEMPFAIL) ? 8 : (stat == EX_OK) ? 7 : 6)) 17314dee0003Seric logdelivery(m, mci, &statmsg[4], ctladdr, e); 1732eb238f8cSeric 1733eb238f8cSeric if (stat != EX_TEMPFAIL) 1734eb238f8cSeric setstat(stat); 17351097d4c9Seric if (stat != EX_OK && (stat != EX_TEMPFAIL || e->e_message == NULL)) 1736198d9be0Seric { 1737198d9be0Seric if (e->e_message != NULL) 1738198d9be0Seric free(e->e_message); 1739198d9be0Seric e->e_message = newstr(&statmsg[4]); 1740198d9be0Seric } 17418557d168Seric errno = 0; 1742d4bd8f0eSbostic #ifdef NAMED_BIND 1743f28da541Smiriam h_errno = 0; 1744d4bd8f0eSbostic #endif 1745eb238f8cSeric } 1746eb238f8cSeric /* 1747eb238f8cSeric ** LOGDELIVERY -- log the delivery in the system log 1748eb238f8cSeric ** 17492c9b4f99Seric ** Care is taken to avoid logging lines that are too long, because 17502c9b4f99Seric ** some versions of syslog have an unfortunate proclivity for core 17512c9b4f99Seric ** dumping. This is a hack, to be sure, that is at best empirical. 17522c9b4f99Seric ** 1753eb238f8cSeric ** Parameters: 175481161401Seric ** m -- the mailer info. Can be NULL for initial queue. 175581161401Seric ** mci -- the mailer connection info -- can be NULL if the 175681161401Seric ** log is occuring when no connection is active. 175781161401Seric ** stat -- the message to print for the status. 17584dee0003Seric ** ctladdr -- the controlling address for the to list. 175981161401Seric ** e -- the current envelope. 1760eb238f8cSeric ** 1761eb238f8cSeric ** Returns: 1762eb238f8cSeric ** none 1763eb238f8cSeric ** 1764eb238f8cSeric ** Side Effects: 1765eb238f8cSeric ** none 1766eb238f8cSeric */ 1767eb238f8cSeric 17684dee0003Seric logdelivery(m, mci, stat, ctladdr, e) 176981161401Seric MAILER *m; 177081161401Seric register MCI *mci; 1771eb238f8cSeric char *stat; 17724dee0003Seric ADDRESS *ctladdr; 1773b31e7f2bSeric register ENVELOPE *e; 17745cf56be3Seric { 1775eb238f8cSeric # ifdef LOG 17764dee0003Seric register char *bp; 17772c9b4f99Seric register char *p; 17782c9b4f99Seric int l; 1779d6acf3eeSeric char buf[512]; 17809507d1f9Seric 17813a100e8bSeric # if (SYSLOG_BUFSIZE) >= 256 17824dee0003Seric bp = buf; 17834dee0003Seric if (ctladdr != NULL) 17844dee0003Seric { 17854dee0003Seric strcpy(bp, ", ctladdr="); 1786f62f08c7Seric strcat(bp, shortenstring(ctladdr->q_paddr, 83)); 17874dee0003Seric bp += strlen(bp); 17884dee0003Seric if (bitset(QGOODUID, ctladdr->q_flags)) 17894dee0003Seric { 17904dee0003Seric (void) sprintf(bp, " (%d/%d)", 17914dee0003Seric ctladdr->q_uid, ctladdr->q_gid); 17924dee0003Seric bp += strlen(bp); 17934dee0003Seric } 17944dee0003Seric } 17954dee0003Seric 17964dee0003Seric (void) sprintf(bp, ", delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 17974dee0003Seric bp += strlen(bp); 179881161401Seric 179948ed5d33Seric if (m != NULL) 180071ff6caaSeric { 18014dee0003Seric (void) strcpy(bp, ", mailer="); 18024dee0003Seric (void) strcat(bp, m->m_name); 18034dee0003Seric bp += strlen(bp); 180471ff6caaSeric } 180548ed5d33Seric 180648ed5d33Seric if (mci != NULL && mci->mci_host != NULL) 180771ff6caaSeric { 180871ff6caaSeric # ifdef DAEMON 1809e2f2f828Seric extern SOCKADDR CurHostAddr; 181048ed5d33Seric # endif 181171ff6caaSeric 18124dee0003Seric (void) strcpy(bp, ", relay="); 18134dee0003Seric (void) strcat(bp, mci->mci_host); 181448ed5d33Seric 181548ed5d33Seric # ifdef DAEMON 18162bdfc6b9Seric (void) strcat(bp, " ["); 18174dee0003Seric (void) strcat(bp, anynet_ntoa(&CurHostAddr)); 18182bdfc6b9Seric (void) strcat(bp, "]"); 181971ff6caaSeric # endif 182071ff6caaSeric } 18219507d1f9Seric else 182248ed5d33Seric { 182348ed5d33Seric char *p = macvalue('h', e); 18249507d1f9Seric 182548ed5d33Seric if (p != NULL && p[0] != '\0') 182648ed5d33Seric { 18274dee0003Seric (void) strcpy(bp, ", relay="); 18284dee0003Seric (void) strcat(bp, p); 182948ed5d33Seric } 183048ed5d33Seric } 1831cb082c5bSeric bp += strlen(bp); 1832d6acf3eeSeric 18333a100e8bSeric #define STATLEN (((SYSLOG_BUFSIZE) - 100) / 4) 18343a100e8bSeric #if (STATLEN) < 63 18353a100e8bSeric # undef STATLEN 18363a100e8bSeric # define STATLEN 63 18373a100e8bSeric #endif 18383a100e8bSeric #if (STATLEN) > 203 18393a100e8bSeric # undef STATLEN 18403a100e8bSeric # define STATLEN 203 18413a100e8bSeric #endif 18423a100e8bSeric 18433a100e8bSeric if ((bp - buf) > (sizeof buf - ((STATLEN) + 20))) 18442c9b4f99Seric { 18452c9b4f99Seric /* desperation move -- truncate data */ 18463a100e8bSeric bp = buf + sizeof buf - ((STATLEN) + 17); 18472c9b4f99Seric strcpy(bp, "..."); 18482c9b4f99Seric bp += 3; 18492c9b4f99Seric } 18502c9b4f99Seric 18512c9b4f99Seric (void) strcpy(bp, ", stat="); 18522c9b4f99Seric bp += strlen(bp); 18533a100e8bSeric 18543a100e8bSeric (void) strcpy(bp, shortenstring(stat, (STATLEN))); 18552c9b4f99Seric 18562c9b4f99Seric l = SYSLOG_BUFSIZE - 100 - strlen(buf); 18572c9b4f99Seric p = e->e_to; 18582c9b4f99Seric while (strlen(p) >= l) 18592c9b4f99Seric { 18602c9b4f99Seric register char *q = strchr(p + l, ','); 18612c9b4f99Seric 18622a1b6b73Seric if (q == NULL) 18632c9b4f99Seric break; 18642c9b4f99Seric syslog(LOG_INFO, "%s: to=%.*s [more]%s", 18652c9b4f99Seric e->e_id, ++q - p, p, buf); 18662c9b4f99Seric p = q; 18672c9b4f99Seric } 18682c9b4f99Seric syslog(LOG_INFO, "%s: to=%s%s", e->e_id, p, buf); 18693a100e8bSeric 18703a100e8bSeric # else /* we have a very short log buffer size */ 18713a100e8bSeric 18724e797715Seric l = SYSLOG_BUFSIZE - 80; 18733a100e8bSeric p = e->e_to; 18743a100e8bSeric while (strlen(p) >= l) 18753a100e8bSeric { 18763a100e8bSeric register char *q = strchr(p + l, ','); 18773a100e8bSeric 18783a100e8bSeric if (q == NULL) 18793a100e8bSeric break; 18803a100e8bSeric syslog(LOG_INFO, "%s: to=%.*s [more]", 18813a100e8bSeric e->e_id, ++q - p, p); 18823a100e8bSeric p = q; 18833a100e8bSeric } 18843a100e8bSeric syslog(LOG_INFO, "%s: to=%s", e->e_id, p); 18853a100e8bSeric 18863a100e8bSeric if (ctladdr != NULL) 18873a100e8bSeric { 18883a100e8bSeric bp = buf; 18893a100e8bSeric strcpy(buf, "ctladdr="); 18903a100e8bSeric bp += strlen(buf); 18913a100e8bSeric strcpy(bp, shortenstring(ctladdr->q_paddr, 83)); 18923a100e8bSeric bp += strlen(buf); 18933a100e8bSeric if (bitset(QGOODUID, ctladdr->q_flags)) 18943a100e8bSeric { 18953a100e8bSeric (void) sprintf(bp, " (%d/%d)", 18963a100e8bSeric ctladdr->q_uid, ctladdr->q_gid); 18973a100e8bSeric bp += strlen(bp); 18983a100e8bSeric } 18993a100e8bSeric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19003a100e8bSeric } 19014e797715Seric bp = buf; 19024e797715Seric sprintf(bp, "delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 19034e797715Seric bp += strlen(bp); 19043a100e8bSeric 19053a100e8bSeric if (m != NULL) 19064e797715Seric { 19074e797715Seric sprintf(bp, ", mailer=%s", m->m_name); 19084e797715Seric bp += strlen(bp); 19094e797715Seric } 1910b056abd0Seric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19113a100e8bSeric 1912b056abd0Seric buf[0] = '\0'; 19133a100e8bSeric if (mci != NULL && mci->mci_host != NULL) 19143a100e8bSeric { 19153a100e8bSeric # ifdef DAEMON 19163a100e8bSeric extern SOCKADDR CurHostAddr; 19173a100e8bSeric # endif 19183a100e8bSeric 1919d2ece200Seric sprintf(buf, "relay=%s", mci->mci_host); 19203a100e8bSeric 19213a100e8bSeric # ifdef DAEMON 1922b056abd0Seric (void) strcat(buf, " ["); 1923b056abd0Seric (void) strcat(buf, anynet_ntoa(&CurHostAddr)); 1924b056abd0Seric (void) strcat(buf, "]"); 19253a100e8bSeric # endif 19263a100e8bSeric } 19273a100e8bSeric else 19283a100e8bSeric { 19293a100e8bSeric char *p = macvalue('h', e); 19303a100e8bSeric 19313a100e8bSeric if (p != NULL && p[0] != '\0') 1932d2ece200Seric sprintf(buf, "relay=%s", p); 19333a100e8bSeric } 1934b056abd0Seric if (buf[0] != '\0') 19354e797715Seric syslog(LOG_INFO, "%s: %s", e->e_id, buf); 19363a100e8bSeric 19373a100e8bSeric syslog(LOG_INFO, "%s: stat=%s", e->e_id, shortenstring(stat, 63)); 19383a100e8bSeric # endif /* short log buffer */ 19396c2c3107Seric # endif /* LOG */ 194025a99e2eSeric } 194125a99e2eSeric /* 194251552439Seric ** PUTFROMLINE -- output a UNIX-style from line (or whatever) 194325a99e2eSeric ** 194451552439Seric ** This can be made an arbitrary message separator by changing $l 194551552439Seric ** 19469b6c17a6Seric ** One of the ugliest hacks seen by human eyes is contained herein: 19479b6c17a6Seric ** UUCP wants those stupid "remote from <host>" lines. Why oh why 19489b6c17a6Seric ** does a well-meaning programmer such as myself have to deal with 19499b6c17a6Seric ** this kind of antique garbage???? 195025a99e2eSeric ** 195125a99e2eSeric ** Parameters: 19525aa0f353Seric ** mci -- the connection information. 19535aa0f353Seric ** e -- the envelope. 195425a99e2eSeric ** 195525a99e2eSeric ** Returns: 195651552439Seric ** none 195725a99e2eSeric ** 195825a99e2eSeric ** Side Effects: 195951552439Seric ** outputs some text to fp. 196025a99e2eSeric */ 196125a99e2eSeric 19625aa0f353Seric putfromline(mci, e) 19635aa0f353Seric register MCI *mci; 1964b31e7f2bSeric ENVELOPE *e; 196525a99e2eSeric { 19662bc47524Seric char *template = "\201l\n"; 196751552439Seric char buf[MAXLINE]; 196825a99e2eSeric 19695aa0f353Seric if (bitnset(M_NHDR, mci->mci_mailer->m_flags)) 197051552439Seric return; 197113bbc08cSeric 19722c7e1b8dSeric # ifdef UGLYUUCP 19735aa0f353Seric if (bitnset(M_UGLYUUCP, mci->mci_mailer->m_flags)) 197474b6e67bSeric { 1975ea09d6edSeric char *bang; 1976ea09d6edSeric char xbuf[MAXLINE]; 197774b6e67bSeric 1978ee4b0922Seric expand("\201g", buf, &buf[sizeof buf - 1], e); 19796c2c3107Seric bang = strchr(buf, '!'); 198074b6e67bSeric if (bang == NULL) 198134fcca25Seric { 198234fcca25Seric errno = 0; 198334fcca25Seric syserr("554 No ! in UUCP From address! (%s given)", buf); 198434fcca25Seric } 198574b6e67bSeric else 1986588cad61Seric { 1987ea09d6edSeric *bang++ = '\0'; 19882bc47524Seric (void) sprintf(xbuf, "From %s \201d remote from %s\n", bang, buf); 1989ea09d6edSeric template = xbuf; 199074b6e67bSeric } 1991588cad61Seric } 19926c2c3107Seric # endif /* UGLYUUCP */ 1993b31e7f2bSeric expand(template, buf, &buf[sizeof buf - 1], e); 19945aa0f353Seric putline(buf, mci); 1995bc6e2962Seric } 1996bc6e2962Seric /* 199751552439Seric ** PUTBODY -- put the body of a message. 199851552439Seric ** 199951552439Seric ** Parameters: 20005aa0f353Seric ** mci -- the connection information. 20019a6a5f55Seric ** e -- the envelope to put out. 200203c02fdeSeric ** separator -- if non-NULL, a message separator that must 200303c02fdeSeric ** not be permitted in the resulting message. 200451552439Seric ** 200551552439Seric ** Returns: 200651552439Seric ** none. 200751552439Seric ** 200851552439Seric ** Side Effects: 200951552439Seric ** The message is written onto fp. 201051552439Seric */ 201151552439Seric 20125aa0f353Seric putbody(mci, e, separator) 20135aa0f353Seric register MCI *mci; 20149a6a5f55Seric register ENVELOPE *e; 201503c02fdeSeric char *separator; 201651552439Seric { 201777b52738Seric char buf[MAXLINE]; 201851552439Seric 201951552439Seric /* 202051552439Seric ** Output the body of the message 202151552439Seric */ 202251552439Seric 20239a6a5f55Seric if (e->e_dfp == NULL) 202451552439Seric { 20259a6a5f55Seric if (e->e_df != NULL) 20269a6a5f55Seric { 20279a6a5f55Seric e->e_dfp = fopen(e->e_df, "r"); 20289a6a5f55Seric if (e->e_dfp == NULL) 20298f9146b0Srick syserr("putbody: Cannot open %s for %s from %s", 2030e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 20319a6a5f55Seric } 20329a6a5f55Seric else 20335aa0f353Seric putline("<<< No Message Collected >>>", mci); 20349a6a5f55Seric } 20359a6a5f55Seric if (e->e_dfp != NULL) 20369a6a5f55Seric { 20379a6a5f55Seric rewind(e->e_dfp); 20385aa0f353Seric while (!ferror(mci->mci_out) && fgets(buf, sizeof buf, e->e_dfp) != NULL) 203924fc8aeeSeric { 20405aa0f353Seric if (buf[0] == 'F' && 20415aa0f353Seric bitnset(M_ESCFROM, mci->mci_mailer->m_flags) && 2042d6fa2b58Sbostic strncmp(buf, "From ", 5) == 0) 20435aa0f353Seric (void) putc('>', mci->mci_out); 204403c02fdeSeric if (buf[0] == '-' && buf[1] == '-' && separator != NULL) 204503c02fdeSeric { 204603c02fdeSeric /* possible separator */ 204703c02fdeSeric int sl = strlen(separator); 204803c02fdeSeric 204903c02fdeSeric if (strncmp(&buf[2], separator, sl) == 0) 20505aa0f353Seric (void) putc(' ', mci->mci_out); 205103c02fdeSeric } 20525aa0f353Seric putline(buf, mci); 205324fc8aeeSeric } 205451552439Seric 20559a6a5f55Seric if (ferror(e->e_dfp)) 205651552439Seric { 2057df106f0bSeric syserr("putbody: %s: read error", e->e_df); 205851552439Seric ExitStat = EX_IOERR; 205951552439Seric } 206051552439Seric } 206151552439Seric 20620890ba1fSeric /* some mailers want extra blank line at end of message */ 20635aa0f353Seric if (bitnset(M_BLANKEND, mci->mci_mailer->m_flags) && 20645aa0f353Seric buf[0] != '\0' && buf[0] != '\n') 20655aa0f353Seric putline("", mci); 20660890ba1fSeric 20675aa0f353Seric (void) fflush(mci->mci_out); 20685aa0f353Seric if (ferror(mci->mci_out) && errno != EPIPE) 206951552439Seric { 207051552439Seric syserr("putbody: write error"); 207151552439Seric ExitStat = EX_IOERR; 207251552439Seric } 207351552439Seric errno = 0; 207425a99e2eSeric } 207525a99e2eSeric /* 207625a99e2eSeric ** MAILFILE -- Send a message to a file. 207725a99e2eSeric ** 2078f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 2079f129ec7dSeric ** bits, sendmail will try to become the owner of that file 2080f129ec7dSeric ** rather than the real user. Obviously, this only works if 2081f129ec7dSeric ** sendmail runs as root. 2082f129ec7dSeric ** 2083588cad61Seric ** This could be done as a subordinate mailer, except that it 2084588cad61Seric ** is used implicitly to save messages in ~/dead.letter. We 2085588cad61Seric ** view this as being sufficiently important as to include it 2086588cad61Seric ** here. For example, if the system is dying, we shouldn't have 2087588cad61Seric ** to create another process plus some pipes to save the message. 2088588cad61Seric ** 208925a99e2eSeric ** Parameters: 209025a99e2eSeric ** filename -- the name of the file to send to. 20916259796dSeric ** ctladdr -- the controlling address header -- includes 20926259796dSeric ** the userid/groupid to be when sending. 209325a99e2eSeric ** 209425a99e2eSeric ** Returns: 209525a99e2eSeric ** The exit code associated with the operation. 209625a99e2eSeric ** 209725a99e2eSeric ** Side Effects: 209825a99e2eSeric ** none. 209925a99e2eSeric */ 210025a99e2eSeric 2101b31e7f2bSeric mailfile(filename, ctladdr, e) 210225a99e2eSeric char *filename; 21036259796dSeric ADDRESS *ctladdr; 2104b31e7f2bSeric register ENVELOPE *e; 210525a99e2eSeric { 210625a99e2eSeric register FILE *f; 210732d19d43Seric register int pid; 210815d084d5Seric int mode; 210925a99e2eSeric 2110671745f3Seric if (tTd(11, 1)) 2111671745f3Seric { 2112671745f3Seric printf("mailfile %s\n ctladdr=", filename); 2113671745f3Seric printaddr(ctladdr, FALSE); 2114671745f3Seric } 2115671745f3Seric 2116f170942cSeric if (e->e_xfp != NULL) 2117f170942cSeric fflush(e->e_xfp); 2118f170942cSeric 211932d19d43Seric /* 212032d19d43Seric ** Fork so we can change permissions here. 212132d19d43Seric ** Note that we MUST use fork, not vfork, because of 212232d19d43Seric ** the complications of calling subroutines, etc. 212332d19d43Seric */ 212432d19d43Seric 212532d19d43Seric DOFORK(fork); 212632d19d43Seric 212732d19d43Seric if (pid < 0) 212832d19d43Seric return (EX_OSERR); 212932d19d43Seric else if (pid == 0) 213032d19d43Seric { 213132d19d43Seric /* child -- actually write to file */ 2132f129ec7dSeric struct stat stb; 21335aa0f353Seric MCI mcibuf; 2134f129ec7dSeric 21352b9178d3Seric (void) setsignal(SIGINT, SIG_DFL); 21362b9178d3Seric (void) setsignal(SIGHUP, SIG_DFL); 21372b9178d3Seric (void) setsignal(SIGTERM, SIG_DFL); 21383462ad9eSeric (void) umask(OldUmask); 213995f16dc0Seric 2140f129ec7dSeric if (stat(filename, &stb) < 0) 21413a98e7eaSeric stb.st_mode = FileMode; 214215d084d5Seric mode = stb.st_mode; 214395f16dc0Seric 214495f16dc0Seric /* limit the errors to those actually caused in the child */ 214595f16dc0Seric errno = 0; 214695f16dc0Seric ExitStat = EX_OK; 214795f16dc0Seric 2148f129ec7dSeric if (bitset(0111, stb.st_mode)) 2149f129ec7dSeric exit(EX_CANTCREAT); 215019428781Seric if (ctladdr != NULL) 215115d084d5Seric { 215215d084d5Seric /* ignore setuid and setgid bits */ 215315d084d5Seric mode &= ~(S_ISGID|S_ISUID); 215415d084d5Seric } 215515d084d5Seric 21568f9146b0Srick /* we have to open the dfile BEFORE setuid */ 21578f9146b0Srick if (e->e_dfp == NULL && e->e_df != NULL) 21588f9146b0Srick { 21598f9146b0Srick e->e_dfp = fopen(e->e_df, "r"); 216095f16dc0Seric if (e->e_dfp == NULL) 216195f16dc0Seric { 21628f9146b0Srick syserr("mailfile: Cannot open %s for %s from %s", 2163e76a6a8fSeric e->e_df, e->e_to, e->e_from.q_paddr); 21648f9146b0Srick } 21658f9146b0Srick } 21668f9146b0Srick 216715d084d5Seric if (!bitset(S_ISGID, mode) || setgid(stb.st_gid) < 0) 2168e36b99e2Seric { 216919428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 217095f16dc0Seric { 2171898a126bSbostic (void) initgroups(DefUser, DefGid); 217295f16dc0Seric } 217395f16dc0Seric else 217495f16dc0Seric { 2175898a126bSbostic (void) initgroups(ctladdr->q_ruser ? 2176898a126bSbostic ctladdr->q_ruser : ctladdr->q_user, 2177898a126bSbostic ctladdr->q_gid); 2178898a126bSbostic } 2179e36b99e2Seric } 218015d084d5Seric if (!bitset(S_ISUID, mode) || setuid(stb.st_uid) < 0) 2181e36b99e2Seric { 218219428781Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 2183e36b99e2Seric (void) setuid(DefUid); 2184e36b99e2Seric else 21856259796dSeric (void) setuid(ctladdr->q_uid); 2186e36b99e2Seric } 218795f16dc0Seric FileName = filename; 218895f16dc0Seric LineNumber = 0; 21893a98e7eaSeric f = dfopen(filename, O_WRONLY|O_CREAT|O_APPEND, FileMode); 219025a99e2eSeric if (f == NULL) 219195f16dc0Seric { 2192b6a0de9dSeric message("554 cannot open: %s", errstring(errno)); 219332d19d43Seric exit(EX_CANTCREAT); 219495f16dc0Seric } 219525a99e2eSeric 21965aa0f353Seric bzero(&mcibuf, sizeof mcibuf); 21975aa0f353Seric mcibuf.mci_mailer = FileMailer; 21985aa0f353Seric mcibuf.mci_out = f; 21995aa0f353Seric if (bitnset(M_7BITS, FileMailer->m_flags)) 22005aa0f353Seric mcibuf.mci_flags |= MCIF_7BIT; 22015aa0f353Seric 22025aa0f353Seric putfromline(&mcibuf, e); 22035aa0f353Seric (*e->e_puthdr)(&mcibuf, e); 22045aa0f353Seric putline("\n", &mcibuf); 22055aa0f353Seric (*e->e_putbody)(&mcibuf, e, NULL); 22065aa0f353Seric putline("\n", &mcibuf); 220795f16dc0Seric if (ferror(f)) 220895f16dc0Seric { 2209b6a0de9dSeric message("451 I/O error: %s", errstring(errno)); 221095f16dc0Seric setstat(EX_IOERR); 221195f16dc0Seric } 2212ee4b0922Seric (void) xfclose(f, "mailfile", filename); 221332d19d43Seric (void) fflush(stdout); 2214e36b99e2Seric 221527628d59Seric /* reset ISUID & ISGID bits for paranoid systems */ 2216c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 221795f16dc0Seric exit(ExitStat); 221813bbc08cSeric /*NOTREACHED*/ 221932d19d43Seric } 222032d19d43Seric else 222132d19d43Seric { 222232d19d43Seric /* parent -- wait for exit status */ 2223588cad61Seric int st; 222432d19d43Seric 2225588cad61Seric st = waitfor(pid); 2226bf9bc890Seric if (WIFEXITED(st)) 2227bf9bc890Seric return (WEXITSTATUS(st)); 2228588cad61Seric else 2229b6a0de9dSeric { 2230b6a0de9dSeric syserr("child died on signal %d", st); 2231bf9bc890Seric return (EX_UNAVAILABLE); 2232b6a0de9dSeric } 22338f9146b0Srick /*NOTREACHED*/ 223432d19d43Seric } 223525a99e2eSeric } 2236ea4dc939Seric /* 2237e103b48fSeric ** HOSTSIGNATURE -- return the "signature" for a host. 2238e103b48fSeric ** 2239e103b48fSeric ** The signature describes how we are going to send this -- it 2240e103b48fSeric ** can be just the hostname (for non-Internet hosts) or can be 2241e103b48fSeric ** an ordered list of MX hosts. 2242e103b48fSeric ** 2243e103b48fSeric ** Parameters: 2244e103b48fSeric ** m -- the mailer describing this host. 2245e103b48fSeric ** host -- the host name. 2246e103b48fSeric ** e -- the current envelope. 2247e103b48fSeric ** 2248e103b48fSeric ** Returns: 2249e103b48fSeric ** The signature for this host. 2250e103b48fSeric ** 2251e103b48fSeric ** Side Effects: 2252e103b48fSeric ** Can tweak the symbol table. 2253e103b48fSeric */ 2254e103b48fSeric 2255e103b48fSeric char * 2256e103b48fSeric hostsignature(m, host, e) 2257e103b48fSeric register MAILER *m; 2258e103b48fSeric char *host; 2259e103b48fSeric ENVELOPE *e; 2260e103b48fSeric { 2261e103b48fSeric register char *p; 2262e103b48fSeric register STAB *s; 2263e103b48fSeric int i; 2264e103b48fSeric int len; 2265e103b48fSeric #ifdef NAMED_BIND 2266e103b48fSeric int nmx; 2267e103b48fSeric auto int rcode; 2268bafdc4e5Seric char *hp; 2269bafdc4e5Seric char *endp; 2270516782b4Seric int oldoptions; 2271e103b48fSeric char *mxhosts[MAXMXHOSTS + 1]; 2272e103b48fSeric #endif 2273e103b48fSeric 2274e103b48fSeric /* 2275e103b48fSeric ** Check to see if this uses IPC -- if not, it can't have MX records. 2276e103b48fSeric */ 2277e103b48fSeric 2278e103b48fSeric p = m->m_mailer; 2279e103b48fSeric if (strcmp(p, "[IPC]") != 0 && strcmp(p, "[TCP]") != 0) 2280e103b48fSeric { 2281e103b48fSeric /* just an ordinary mailer */ 2282e103b48fSeric return host; 2283e103b48fSeric } 2284e103b48fSeric 2285e103b48fSeric /* 2286e103b48fSeric ** Look it up in the symbol table. 2287e103b48fSeric */ 2288e103b48fSeric 2289e103b48fSeric s = stab(host, ST_HOSTSIG, ST_ENTER); 2290e103b48fSeric if (s->s_hostsig != NULL) 2291e103b48fSeric return s->s_hostsig; 2292e103b48fSeric 2293e103b48fSeric /* 2294e103b48fSeric ** Not already there -- create a signature. 2295e103b48fSeric */ 2296e103b48fSeric 2297e103b48fSeric #ifdef NAMED_BIND 2298516782b4Seric if (ConfigLevel < 2) 2299516782b4Seric { 2300516782b4Seric oldoptions = _res.options; 2301516782b4Seric _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 2302516782b4Seric } 2303516782b4Seric 2304bafdc4e5Seric for (hp = host; hp != NULL; hp = endp) 2305bafdc4e5Seric { 2306bafdc4e5Seric endp = strchr(hp, ':'); 2307bafdc4e5Seric if (endp != NULL) 2308bafdc4e5Seric *endp = '\0'; 2309bafdc4e5Seric 23107bf809e6Seric nmx = getmxrr(hp, mxhosts, TRUE, &rcode); 23117d55540cSeric 2312e103b48fSeric if (nmx <= 0) 2313e103b48fSeric { 2314e103b48fSeric register MCI *mci; 2315e103b48fSeric 2316e103b48fSeric /* update the connection info for this host */ 2317bafdc4e5Seric mci = mci_get(hp, m); 2318e103b48fSeric mci->mci_exitstat = rcode; 2319e103b48fSeric mci->mci_errno = errno; 2320f170942cSeric #ifdef NAMED_BIND 2321f170942cSeric mci->mci_herrno = h_errno; 2322f170942cSeric #endif 2323e103b48fSeric 2324e103b48fSeric /* and return the original host name as the signature */ 2325bafdc4e5Seric nmx = 1; 2326bafdc4e5Seric mxhosts[0] = hp; 2327e103b48fSeric } 2328e103b48fSeric 2329e103b48fSeric len = 0; 2330e103b48fSeric for (i = 0; i < nmx; i++) 2331e103b48fSeric { 2332e103b48fSeric len += strlen(mxhosts[i]) + 1; 2333e103b48fSeric } 2334bafdc4e5Seric if (s->s_hostsig != NULL) 2335bafdc4e5Seric len += strlen(s->s_hostsig) + 1; 2336bafdc4e5Seric p = xalloc(len); 2337bafdc4e5Seric if (s->s_hostsig != NULL) 2338bafdc4e5Seric { 2339bafdc4e5Seric (void) strcpy(p, s->s_hostsig); 2340bafdc4e5Seric free(s->s_hostsig); 2341bafdc4e5Seric s->s_hostsig = p; 2342bafdc4e5Seric p += strlen(p); 2343bafdc4e5Seric *p++ = ':'; 2344bafdc4e5Seric } 2345bafdc4e5Seric else 2346bafdc4e5Seric s->s_hostsig = p; 2347e103b48fSeric for (i = 0; i < nmx; i++) 2348e103b48fSeric { 2349e103b48fSeric if (i != 0) 2350e103b48fSeric *p++ = ':'; 2351e103b48fSeric strcpy(p, mxhosts[i]); 2352e103b48fSeric p += strlen(p); 2353e103b48fSeric } 2354bafdc4e5Seric if (endp != NULL) 2355bafdc4e5Seric *endp++ = ':'; 2356bafdc4e5Seric } 2357e103b48fSeric makelower(s->s_hostsig); 2358516782b4Seric if (ConfigLevel < 2) 2359516782b4Seric _res.options = oldoptions; 2360e103b48fSeric #else 2361e103b48fSeric /* not using BIND -- the signature is just the host name */ 2362e103b48fSeric s->s_hostsig = host; 2363e103b48fSeric #endif 2364e103b48fSeric if (tTd(17, 1)) 2365e103b48fSeric printf("hostsignature(%s) = %s\n", host, s->s_hostsig); 2366e103b48fSeric return s->s_hostsig; 2367e103b48fSeric } 2368