14227346bSdist /* 20942ea6aSbostic * Copyright (c) 1983 Eric P. Allman 3e70a7521Sbostic * Copyright (c) 1988 Regents of the University of California. 4e70a7521Sbostic * All rights reserved. 5e70a7521Sbostic * 63bc94712Sbostic * %sccs.include.redist.c% 74227346bSdist */ 84227346bSdist 94227346bSdist #ifndef lint 10*579ef0ddSeric static char sccsid[] = "@(#)deliver.c 6.47 (Berkeley) 03/18/93"; 11e70a7521Sbostic #endif /* not lint */ 124227346bSdist 13fcde9cc8Sbostic #include "sendmail.h" 14a8c080f0Seric #include <signal.h> 15c77d1c25Seric #include <sys/stat.h> 16f28da541Smiriam #include <netdb.h> 17911693bfSbostic #include <errno.h> 18134746fbSeric #ifdef NAMED_BIND 19912a731aSbostic #include <arpa/nameser.h> 20912a731aSbostic #include <resolv.h> 21134746fbSeric #endif 2225a99e2eSeric 2325a99e2eSeric /* 2413bbc08cSeric ** DELIVER -- Deliver a message to a list of addresses. 2513bbc08cSeric ** 2613bbc08cSeric ** This routine delivers to everyone on the same host as the 2713bbc08cSeric ** user on the head of the list. It is clever about mailers 2813bbc08cSeric ** that don't handle multiple users. It is NOT guaranteed 2913bbc08cSeric ** that it will deliver to all these addresses however -- so 3013bbc08cSeric ** deliver should be called once for each address on the 3113bbc08cSeric ** list. 3225a99e2eSeric ** 3325a99e2eSeric ** Parameters: 34588cad61Seric ** e -- the envelope to deliver. 35c77d1c25Seric ** firstto -- head of the address list to deliver to. 3625a99e2eSeric ** 3725a99e2eSeric ** Returns: 3825a99e2eSeric ** zero -- successfully delivered. 3925a99e2eSeric ** else -- some failure, see ExitStat for more info. 4025a99e2eSeric ** 4125a99e2eSeric ** Side Effects: 4225a99e2eSeric ** The standard input is passed off to someone. 4325a99e2eSeric */ 4425a99e2eSeric 45588cad61Seric deliver(e, firstto) 46588cad61Seric register ENVELOPE *e; 47c77d1c25Seric ADDRESS *firstto; 4825a99e2eSeric { 4978442df3Seric char *host; /* host being sent to */ 5078442df3Seric char *user; /* user being sent to */ 5125a99e2eSeric char **pvp; 525dfc646bSeric register char **mvp; 5325a99e2eSeric register char *p; 54588cad61Seric register MAILER *m; /* mailer for this recipient */ 556259796dSeric ADDRESS *ctladdr; 56b31e7f2bSeric register MCI *mci; 57c77d1c25Seric register ADDRESS *to = firstto; 58c579ef51Seric bool clever = FALSE; /* running user smtp to this mailer */ 59772e6e50Seric ADDRESS *tochain = NULL; /* chain of users in this mailer call */ 60911693bfSbostic int rcode; /* response code */ 61e103b48fSeric char *firstsig; /* signature of firstto */ 62ee6bf8dfSeric char *pv[MAXPV+1]; 63*579ef0ddSeric char tobuf[TOBUFSIZE]; /* text line of to people */ 64ee6bf8dfSeric char buf[MAXNAME]; 65c23ed322Seric char rpathbuf[MAXNAME]; /* translated return path */ 66fabb3bd4Seric extern int checkcompat(); 67ee6bf8dfSeric extern ADDRESS *getctladdr(); 68ee6bf8dfSeric extern char *remotename(); 69b31e7f2bSeric extern MCI *openmailer(); 70e103b48fSeric extern char *hostsignature(); 7125a99e2eSeric 7235490626Seric errno = 0; 73ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags)) 745dfc646bSeric return (0); 7525a99e2eSeric 76134746fbSeric #ifdef NAMED_BIND 77912a731aSbostic /* unless interactive, try twice, over a minute */ 78912a731aSbostic if (OpMode == MD_DAEMON || OpMode == MD_SMTP) { 79912a731aSbostic _res.retrans = 30; 80912a731aSbostic _res.retry = 2; 81912a731aSbostic } 82d4bd8f0eSbostic #endif 83912a731aSbostic 8451552439Seric m = to->q_mailer; 8551552439Seric host = to->q_host; 8651552439Seric 876ef48975Seric if (tTd(10, 1)) 885dfc646bSeric printf("\n--deliver, mailer=%d, host=`%s', first user=`%s'\n", 8951552439Seric m->m_mno, host, to->q_user); 90f3dbc832Seric 91f3dbc832Seric /* 92f3dbc832Seric ** If this mailer is expensive, and if we don't want to make 93f3dbc832Seric ** connections now, just mark these addresses and return. 94f3dbc832Seric ** This is useful if we want to batch connections to 95f3dbc832Seric ** reduce load. This will cause the messages to be 96f3dbc832Seric ** queued up, and a daemon will come along to send the 97f3dbc832Seric ** messages later. 98f3dbc832Seric ** This should be on a per-mailer basis. 99f3dbc832Seric */ 100f3dbc832Seric 10157fc6f17Seric if (NoConnect && !QueueRun && bitnset(M_EXPENSIVE, m->m_flags) && 102317680d6Seric !Verbose) 103f3dbc832Seric { 104f3dbc832Seric for (; to != NULL; to = to->q_next) 105f4560e80Seric { 106ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 107c6e18ac5Seric to->q_mailer != m) 108f4560e80Seric continue; 109f3dbc832Seric to->q_flags |= QQUEUEUP|QDONTSEND; 110588cad61Seric e->e_to = to->q_paddr; 11108b25121Seric message("queued"); 1122f624c86Seric if (LogLevel > 8) 11381161401Seric logdelivery(m, NULL, "queued", e); 114f4560e80Seric } 115588cad61Seric e->e_to = NULL; 116f3dbc832Seric return (0); 117f3dbc832Seric } 118f3dbc832Seric 11925a99e2eSeric /* 1205dfc646bSeric ** Do initial argv setup. 1215dfc646bSeric ** Insert the mailer name. Notice that $x expansion is 1225dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 1235dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 1245dfc646bSeric ** code does not check for 'pv' overflow; this places a 1255dfc646bSeric ** manifest lower limit of 4 for MAXPV. 1263bea8136Seric ** The from address rewrite is expected to make 1273bea8136Seric ** the address relative to the other end. 1285dfc646bSeric */ 1295dfc646bSeric 13078442df3Seric /* rewrite from address, using rewriting rules */ 131ee4b0922Seric (void) strcpy(rpathbuf, remotename(e->e_from.q_paddr, m, TRUE, FALSE, 1329c69ca01Seric TRUE, FALSE, e)); 133ee4b0922Seric define('g', rpathbuf, e); /* translated return path */ 134588cad61Seric define('h', host, e); /* to host */ 1355dfc646bSeric Errors = 0; 1365dfc646bSeric pvp = pv; 1375dfc646bSeric *pvp++ = m->m_argv[0]; 1385dfc646bSeric 1395dfc646bSeric /* insert -f or -r flag as appropriate */ 14057fc6f17Seric if (FromFlag && (bitnset(M_FOPT, m->m_flags) || bitnset(M_ROPT, m->m_flags))) 1415dfc646bSeric { 14257fc6f17Seric if (bitnset(M_FOPT, m->m_flags)) 1435dfc646bSeric *pvp++ = "-f"; 1445dfc646bSeric else 1455dfc646bSeric *pvp++ = "-r"; 146c23ed322Seric *pvp++ = newstr(rpathbuf); 1475dfc646bSeric } 1485dfc646bSeric 1495dfc646bSeric /* 1505dfc646bSeric ** Append the other fixed parts of the argv. These run 1515dfc646bSeric ** up to the first entry containing "$u". There can only 1525dfc646bSeric ** be one of these, and there are only a few more slots 1535dfc646bSeric ** in the pv after it. 1545dfc646bSeric */ 1555dfc646bSeric 1565dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 1575dfc646bSeric { 1582bc47524Seric /* can't use strchr here because of sign extension problems */ 1592bc47524Seric while (*p != '\0') 1602bc47524Seric { 1612bc47524Seric if ((*p++ & 0377) == MACROEXPAND) 1622bc47524Seric { 1632bc47524Seric if (*p == 'u') 1645dfc646bSeric break; 1652bc47524Seric } 1662bc47524Seric } 1672bc47524Seric 1682bc47524Seric if (*p != '\0') 1695dfc646bSeric break; 1705dfc646bSeric 1715dfc646bSeric /* this entry is safe -- go ahead and process it */ 172588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 1735dfc646bSeric *pvp++ = newstr(buf); 1745dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 1755dfc646bSeric { 17608b25121Seric syserr("554 Too many parameters to %s before $u", pv[0]); 1775dfc646bSeric return (-1); 1785dfc646bSeric } 1795dfc646bSeric } 180c579ef51Seric 18133db8731Seric /* 18233db8731Seric ** If we have no substitution for the user name in the argument 18333db8731Seric ** list, we know that we must supply the names otherwise -- and 18433db8731Seric ** SMTP is the answer!! 18533db8731Seric */ 18633db8731Seric 1875dfc646bSeric if (*mvp == NULL) 188c579ef51Seric { 189c579ef51Seric /* running SMTP */ 1902c7e1b8dSeric # ifdef SMTP 191c579ef51Seric clever = TRUE; 192c579ef51Seric *pvp = NULL; 1936c2c3107Seric # else /* SMTP */ 19433db8731Seric /* oops! we don't implement SMTP */ 19508b25121Seric syserr("554 SMTP style mailer"); 1962c7e1b8dSeric return (EX_SOFTWARE); 1976c2c3107Seric # endif /* SMTP */ 198c579ef51Seric } 1995dfc646bSeric 2005dfc646bSeric /* 2015dfc646bSeric ** At this point *mvp points to the argument with $u. We 2025dfc646bSeric ** run through our address list and append all the addresses 2035dfc646bSeric ** we can. If we run out of space, do not fret! We can 2045dfc646bSeric ** always send another copy later. 2055dfc646bSeric */ 2065dfc646bSeric 2075dfc646bSeric tobuf[0] = '\0'; 208588cad61Seric e->e_to = tobuf; 2096259796dSeric ctladdr = NULL; 210e103b48fSeric firstsig = hostsignature(firstto->q_mailer, firstto->q_host, e); 2115dfc646bSeric for (; to != NULL; to = to->q_next) 2125dfc646bSeric { 2135dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 21457fc6f17Seric if (tobuf[0] != '\0' && !bitnset(M_MUSER, m->m_flags)) 2155dfc646bSeric break; 2165dfc646bSeric 2175dfc646bSeric /* if already sent or not for this host, don't send */ 218ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 219e103b48fSeric to->q_mailer != firstto->q_mailer || 220e103b48fSeric strcmp(hostsignature(to->q_mailer, to->q_host, e), firstsig) != 0) 2215dfc646bSeric continue; 2226259796dSeric 2234b22ea87Seric /* avoid overflowing tobuf */ 224aa50a568Sbostic if (sizeof tobuf < (strlen(to->q_paddr) + strlen(tobuf) + 2)) 2254b22ea87Seric break; 2264b22ea87Seric 2276ef48975Seric if (tTd(10, 1)) 228772e6e50Seric { 229772e6e50Seric printf("\nsend to "); 230772e6e50Seric printaddr(to, FALSE); 231772e6e50Seric } 232772e6e50Seric 2336259796dSeric /* compute effective uid/gid when sending */ 2347da1035fSeric if (to->q_mailer == ProgMailer) 2356259796dSeric ctladdr = getctladdr(to); 2366259796dSeric 2375dfc646bSeric user = to->q_user; 238588cad61Seric e->e_to = to->q_paddr; 23975f1ade9Seric if (tTd(10, 5)) 24075f1ade9Seric { 24175f1ade9Seric printf("deliver: QDONTSEND "); 24275f1ade9Seric printaddr(to, FALSE); 24375f1ade9Seric } 244ee4b0922Seric to->q_flags |= QDONTSEND; 2455dfc646bSeric 2465dfc646bSeric /* 2475dfc646bSeric ** Check to see that these people are allowed to 2485dfc646bSeric ** talk to each other. 2492a6e0786Seric */ 2502a6e0786Seric 25169582d2fSeric if (m->m_maxsize != 0 && e->e_msgsize > m->m_maxsize) 25269582d2fSeric { 25369582d2fSeric NoReturn = TRUE; 25408b25121Seric usrerr("552 Message is too large; %ld bytes max", m->m_maxsize); 25581161401Seric giveresponse(EX_UNAVAILABLE, m, NULL, e); 25669582d2fSeric continue; 25769582d2fSeric } 258fabb3bd4Seric rcode = checkcompat(to, e); 2591793c9c5Seric if (rcode != EX_OK) 2605dfc646bSeric { 26181161401Seric giveresponse(rcode, m, NULL, e); 2625dfc646bSeric continue; 2635dfc646bSeric } 2642a6e0786Seric 2652a6e0786Seric /* 2669ec9501bSeric ** Strip quote bits from names if the mailer is dumb 2679ec9501bSeric ** about them. 26825a99e2eSeric */ 26925a99e2eSeric 27057fc6f17Seric if (bitnset(M_STRIPQ, m->m_flags)) 27125a99e2eSeric { 2721d8f1806Seric stripquotes(user); 2731d8f1806Seric stripquotes(host); 27425a99e2eSeric } 27525a99e2eSeric 276cdb828c5Seric /* hack attack -- delivermail compatibility */ 277cdb828c5Seric if (m == ProgMailer && *user == '|') 278cdb828c5Seric user++; 279cdb828c5Seric 28025a99e2eSeric /* 2813efaed6eSeric ** If an error message has already been given, don't 2823efaed6eSeric ** bother to send to this address. 2833efaed6eSeric ** 2843efaed6eSeric ** >>>>>>>>>> This clause assumes that the local mailer 2853efaed6eSeric ** >> NOTE >> cannot do any further aliasing; that 2863efaed6eSeric ** >>>>>>>>>> function is subsumed by sendmail. 2873efaed6eSeric */ 2883efaed6eSeric 2896cae517dSeric if (bitset(QBADADDR|QQUEUEUP, to->q_flags)) 2903efaed6eSeric continue; 2913efaed6eSeric 292f2fec898Seric /* save statistics.... */ 293588cad61Seric markstats(e, to); 294f2fec898Seric 2953efaed6eSeric /* 29625a99e2eSeric ** See if this user name is "special". 29725a99e2eSeric ** If the user name has a slash in it, assume that this 29851552439Seric ** is a file -- send it off without further ado. Note 29951552439Seric ** that this type of addresses is not processed along 30051552439Seric ** with the others, so we fudge on the To person. 30125a99e2eSeric */ 30225a99e2eSeric 3032c017f8dSeric if (m == FileMailer) 30425a99e2eSeric { 305b31e7f2bSeric rcode = mailfile(user, getctladdr(to), e); 30681161401Seric giveresponse(rcode, m, NULL, e); 307dde5acadSeric if (rcode == EX_OK) 308dde5acadSeric to->q_flags |= QSENT; 3095dfc646bSeric continue; 31025a99e2eSeric } 31125a99e2eSeric 31213bbc08cSeric /* 31313bbc08cSeric ** Address is verified -- add this user to mailer 31413bbc08cSeric ** argv, and add it to the print list of recipients. 31513bbc08cSeric */ 31613bbc08cSeric 317508daeccSeric /* link together the chain of recipients */ 318508daeccSeric to->q_tchain = tochain; 319508daeccSeric tochain = to; 320508daeccSeric 3215dfc646bSeric /* create list of users for error messages */ 322db8841e9Seric (void) strcat(tobuf, ","); 323db8841e9Seric (void) strcat(tobuf, to->q_paddr); 324588cad61Seric define('u', user, e); /* to user */ 325588cad61Seric define('z', to->q_home, e); /* user's home */ 3265dfc646bSeric 327c579ef51Seric /* 328508daeccSeric ** Expand out this user into argument list. 329c579ef51Seric */ 330c579ef51Seric 331508daeccSeric if (!clever) 332c579ef51Seric { 333588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 3345dfc646bSeric *pvp++ = newstr(buf); 3355dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 3365dfc646bSeric { 3375dfc646bSeric /* allow some space for trailing parms */ 3385dfc646bSeric break; 3395dfc646bSeric } 3405dfc646bSeric } 341c579ef51Seric } 3425dfc646bSeric 343145b49b1Seric /* see if any addresses still exist */ 344145b49b1Seric if (tobuf[0] == '\0') 345c579ef51Seric { 346588cad61Seric define('g', (char *) NULL, e); 347145b49b1Seric return (0); 348c579ef51Seric } 349145b49b1Seric 3505dfc646bSeric /* print out messages as full list */ 35163780dbdSeric e->e_to = tobuf + 1; 3525dfc646bSeric 3535dfc646bSeric /* 3545dfc646bSeric ** Fill out any parameters after the $u parameter. 3555dfc646bSeric */ 3565dfc646bSeric 357c579ef51Seric while (!clever && *++mvp != NULL) 3585dfc646bSeric { 359588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 3605dfc646bSeric *pvp++ = newstr(buf); 3615dfc646bSeric if (pvp >= &pv[MAXPV]) 36208b25121Seric syserr("554 deliver: pv overflow after $u for %s", pv[0]); 3635dfc646bSeric } 3645dfc646bSeric *pvp++ = NULL; 3655dfc646bSeric 36625a99e2eSeric /* 36725a99e2eSeric ** Call the mailer. 3686328bdf7Seric ** The argument vector gets built, pipes 36925a99e2eSeric ** are created as necessary, and we fork & exec as 3706328bdf7Seric ** appropriate. 371c579ef51Seric ** If we are running SMTP, we just need to clean up. 37225a99e2eSeric */ 37325a99e2eSeric 3747ee87e5fSeric if (ctladdr == NULL && m != ProgMailer) 37586b26461Seric ctladdr = &e->e_from; 376134746fbSeric #ifdef NAMED_BIND 3772bcc6d2dSeric if (ConfigLevel < 2) 378912a731aSbostic _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 379134746fbSeric #endif 380b31e7f2bSeric mci = openmailer(m, pv, ctladdr, clever, e); 381b31e7f2bSeric if (mci == NULL) 382134746fbSeric { 383b31e7f2bSeric /* catastrophic error */ 384845e533cSeric rcode = EX_OSERR; 385b31e7f2bSeric goto give_up; 386b31e7f2bSeric } 387b31e7f2bSeric else if (mci->mci_state != MCIS_OPEN) 388b31e7f2bSeric { 389b31e7f2bSeric /* couldn't open the mailer */ 390b31e7f2bSeric rcode = mci->mci_exitstat; 3912a6bc25bSeric errno = mci->mci_errno; 392b31e7f2bSeric if (rcode == EX_OK) 393b31e7f2bSeric { 394b31e7f2bSeric /* shouldn't happen */ 39508b25121Seric syserr("554 deliver: rcode=%d, mci_state=%d, sig=%s", 3966b0f339dSeric rcode, mci->mci_state, firstsig); 397b31e7f2bSeric rcode = EX_SOFTWARE; 398b31e7f2bSeric } 399b31e7f2bSeric } 400b31e7f2bSeric else if (!clever) 401b31e7f2bSeric { 402b31e7f2bSeric /* 403b31e7f2bSeric ** Format and send message. 404b31e7f2bSeric */ 40515d084d5Seric 406b31e7f2bSeric putfromline(mci->mci_out, m, e); 407b31e7f2bSeric (*e->e_puthdr)(mci->mci_out, m, e); 408b31e7f2bSeric putline("\n", mci->mci_out, m); 409b31e7f2bSeric (*e->e_putbody)(mci->mci_out, m, e); 410b31e7f2bSeric 411b31e7f2bSeric /* get the exit status */ 412b31e7f2bSeric rcode = endmailer(mci, pv[0]); 413134746fbSeric } 414134746fbSeric else 415b31e7f2bSeric #ifdef SMTP 416134746fbSeric { 417b31e7f2bSeric /* 418b31e7f2bSeric ** Send the MAIL FROM: protocol 419b31e7f2bSeric */ 42015d084d5Seric 421b31e7f2bSeric rcode = smtpmailfrom(m, mci, e); 422b31e7f2bSeric if (rcode == EX_OK) 42375889e88Seric { 424ded0d3daSkarels register char *t = tobuf; 425ded0d3daSkarels register int i; 426ded0d3daSkarels 427588cad61Seric /* send the recipient list */ 42863780dbdSeric tobuf[0] = '\0'; 42975889e88Seric for (to = tochain; to != NULL; to = to->q_tchain) 43075889e88Seric { 43163780dbdSeric e->e_to = to->q_paddr; 43215d084d5Seric if ((i = smtprcpt(to, m, mci, e)) != EX_OK) 43375889e88Seric { 43483b7ddc9Seric markfailure(e, to, i); 43581161401Seric giveresponse(i, m, mci, e); 43663780dbdSeric } 43775889e88Seric else 43875889e88Seric { 439911693bfSbostic *t++ = ','; 440b31e7f2bSeric for (p = to->q_paddr; *p; *t++ = *p++) 441b31e7f2bSeric continue; 442588cad61Seric } 443588cad61Seric } 444588cad61Seric 44563780dbdSeric /* now send the data */ 44663780dbdSeric if (tobuf[0] == '\0') 447b31e7f2bSeric { 44863780dbdSeric e->e_to = NULL; 449b31e7f2bSeric if (bitset(MCIF_CACHED, mci->mci_flags)) 450b31e7f2bSeric smtprset(m, mci, e); 451b31e7f2bSeric } 45275889e88Seric else 45375889e88Seric { 45463780dbdSeric e->e_to = tobuf + 1; 45575889e88Seric rcode = smtpdata(m, mci, e); 45663780dbdSeric } 45763780dbdSeric 45863780dbdSeric /* now close the connection */ 459b31e7f2bSeric if (!bitset(MCIF_CACHED, mci->mci_flags)) 46015d084d5Seric smtpquit(m, mci, e); 46163780dbdSeric } 462c579ef51Seric } 463b31e7f2bSeric #else /* not SMTP */ 464a05b3449Sbostic { 46508b25121Seric syserr("554 deliver: need SMTP compiled to use clever mailer"); 466845e533cSeric rcode = EX_CONFIG; 467b31e7f2bSeric goto give_up; 468a05b3449Sbostic } 469b31e7f2bSeric #endif /* SMTP */ 470134746fbSeric #ifdef NAMED_BIND 4712bcc6d2dSeric if (ConfigLevel < 2) 472912a731aSbostic _res.options |= RES_DEFNAMES | RES_DNSRCH; /* XXX */ 473134746fbSeric #endif 4745dfc646bSeric 475b31e7f2bSeric /* arrange a return receipt if requested */ 4768c13bf07Seric if (e->e_receiptto != NULL && bitnset(M_LOCALMAILER, m->m_flags)) 477b31e7f2bSeric { 478b31e7f2bSeric e->e_flags |= EF_SENDRECEIPT; 479b31e7f2bSeric /* do we want to send back more info? */ 480b31e7f2bSeric } 481b31e7f2bSeric 482c77d1c25Seric /* 48363780dbdSeric ** Do final status disposal. 48463780dbdSeric ** We check for something in tobuf for the SMTP case. 485c77d1c25Seric ** If we got a temporary failure, arrange to queue the 486c77d1c25Seric ** addressees. 487c77d1c25Seric */ 488c77d1c25Seric 489b31e7f2bSeric give_up: 49063780dbdSeric if (tobuf[0] != '\0') 49181161401Seric giveresponse(rcode, m, mci, e); 492772e6e50Seric for (to = tochain; to != NULL; to = to->q_tchain) 493b31e7f2bSeric { 494dde5acadSeric if (rcode != EX_OK) 49583b7ddc9Seric markfailure(e, to, rcode); 496dde5acadSeric else 497655518ecSeric { 498dde5acadSeric to->q_flags |= QSENT; 499655518ecSeric e->e_nsent++; 500655518ecSeric } 501b31e7f2bSeric } 502b31e7f2bSeric 503b31e7f2bSeric /* 504b31e7f2bSeric ** Restore state and return. 505b31e7f2bSeric */ 506c77d1c25Seric 50735490626Seric errno = 0; 508588cad61Seric define('g', (char *) NULL, e); 5095826d9d3Seric return (rcode); 51025a99e2eSeric } 5115dfc646bSeric /* 51283b7ddc9Seric ** MARKFAILURE -- mark a failure on a specific address. 51383b7ddc9Seric ** 51483b7ddc9Seric ** Parameters: 51583b7ddc9Seric ** e -- the envelope we are sending. 51683b7ddc9Seric ** q -- the address to mark. 51783b7ddc9Seric ** rcode -- the code signifying the particular failure. 51883b7ddc9Seric ** 51983b7ddc9Seric ** Returns: 52083b7ddc9Seric ** none. 52183b7ddc9Seric ** 52283b7ddc9Seric ** Side Effects: 52383b7ddc9Seric ** marks the address (and possibly the envelope) with the 52483b7ddc9Seric ** failure so that an error will be returned or 52583b7ddc9Seric ** the message will be queued, as appropriate. 52683b7ddc9Seric */ 52783b7ddc9Seric 52883b7ddc9Seric markfailure(e, q, rcode) 52983b7ddc9Seric register ENVELOPE *e; 53083b7ddc9Seric register ADDRESS *q; 53183b7ddc9Seric int rcode; 53283b7ddc9Seric { 53383b7ddc9Seric if (rcode == EX_OK) 53483b7ddc9Seric return; 535ef137175Sbostic else if (rcode != EX_TEMPFAIL && rcode != EX_IOERR && rcode != EX_OSERR) 53683b7ddc9Seric q->q_flags |= QBADADDR; 53783b7ddc9Seric else if (curtime() > e->e_ctime + TimeOut) 53883b7ddc9Seric { 53983b7ddc9Seric extern char *pintvl(); 540198d9be0Seric char buf[MAXLINE]; 54183b7ddc9Seric 54283b7ddc9Seric if (!bitset(EF_TIMEOUT, e->e_flags)) 543198d9be0Seric { 544198d9be0Seric (void) sprintf(buf, "Cannot send message for %s", 54583b7ddc9Seric pintvl(TimeOut, FALSE)); 546198d9be0Seric if (e->e_message != NULL) 547198d9be0Seric free(e->e_message); 548198d9be0Seric e->e_message = newstr(buf); 54908b25121Seric message(buf); 550198d9be0Seric } 55183b7ddc9Seric q->q_flags |= QBADADDR; 55283b7ddc9Seric e->e_flags |= EF_TIMEOUT; 553c13b5dfcSeric fprintf(e->e_xfp, "421 %s... Message timed out\n", q->q_paddr); 55483b7ddc9Seric } 55583b7ddc9Seric else 55683b7ddc9Seric q->q_flags |= QQUEUEUP; 55783b7ddc9Seric } 55883b7ddc9Seric /* 55932d19d43Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 56032d19d43Seric ** 56132d19d43Seric ** This MUST be a macro, since after a vfork we are running 56232d19d43Seric ** two processes on the same stack!!! 56332d19d43Seric ** 56432d19d43Seric ** Parameters: 56532d19d43Seric ** none. 56632d19d43Seric ** 56732d19d43Seric ** Returns: 56832d19d43Seric ** From a macro??? You've got to be kidding! 56932d19d43Seric ** 57032d19d43Seric ** Side Effects: 57132d19d43Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 57232d19d43Seric ** pid of child in parent, zero in child. 57332d19d43Seric ** -1 on unrecoverable error. 57432d19d43Seric ** 57532d19d43Seric ** Notes: 57632d19d43Seric ** I'm awfully sorry this looks so awful. That's 57732d19d43Seric ** vfork for you..... 57832d19d43Seric */ 57932d19d43Seric 58032d19d43Seric # define NFORKTRIES 5 58184f7cd1bSeric 58284f7cd1bSeric # ifndef FORK 58384f7cd1bSeric # define FORK fork 58484f7cd1bSeric # endif 58532d19d43Seric 58632d19d43Seric # define DOFORK(fORKfN) \ 58732d19d43Seric {\ 58832d19d43Seric register int i;\ 58932d19d43Seric \ 59011799049Seric for (i = NFORKTRIES; --i >= 0; )\ 59132d19d43Seric {\ 59232d19d43Seric pid = fORKfN();\ 59332d19d43Seric if (pid >= 0)\ 59432d19d43Seric break;\ 59511799049Seric if (i > 0)\ 5966c4635f6Seric sleep((unsigned) NFORKTRIES - i);\ 59732d19d43Seric }\ 59832d19d43Seric } 59932d19d43Seric /* 6002ed72599Seric ** DOFORK -- simple fork interface to DOFORK. 6012ed72599Seric ** 6022ed72599Seric ** Parameters: 6032ed72599Seric ** none. 6042ed72599Seric ** 6052ed72599Seric ** Returns: 6062ed72599Seric ** pid of child in parent. 6072ed72599Seric ** zero in child. 6082ed72599Seric ** -1 on error. 6092ed72599Seric ** 6102ed72599Seric ** Side Effects: 6112ed72599Seric ** returns twice, once in parent and once in child. 6122ed72599Seric */ 6132ed72599Seric 6142ed72599Seric dofork() 6152ed72599Seric { 6162ed72599Seric register int pid; 6172ed72599Seric 6182ed72599Seric DOFORK(fork); 6192ed72599Seric return (pid); 6202ed72599Seric } 6212ed72599Seric /* 622c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 623c579ef51Seric ** 624c579ef51Seric ** We should never get fatal errors (e.g., segmentation 625c579ef51Seric ** violation), so we report those specially. For other 626c579ef51Seric ** errors, we choose a status message (into statmsg), 627c579ef51Seric ** and if it represents an error, we print it. 628c579ef51Seric ** 629c579ef51Seric ** Parameters: 630c579ef51Seric ** pid -- pid of mailer. 631c579ef51Seric ** name -- name of mailer (for error messages). 632c579ef51Seric ** 633c579ef51Seric ** Returns: 634c579ef51Seric ** exit code of mailer. 635c579ef51Seric ** 636c579ef51Seric ** Side Effects: 637c579ef51Seric ** none. 638c579ef51Seric */ 639c579ef51Seric 64075889e88Seric endmailer(mci, name) 641b31e7f2bSeric register MCI *mci; 642c579ef51Seric char *name; 643c579ef51Seric { 644588cad61Seric int st; 645c579ef51Seric 64675889e88Seric /* close any connections */ 64775889e88Seric if (mci->mci_in != NULL) 648ee4b0922Seric (void) xfclose(mci->mci_in, name, "mci_in"); 64975889e88Seric if (mci->mci_out != NULL) 650ee4b0922Seric (void) xfclose(mci->mci_out, name, "mci_out"); 65175889e88Seric mci->mci_in = mci->mci_out = NULL; 65275889e88Seric mci->mci_state = MCIS_CLOSED; 65375889e88Seric 65433db8731Seric /* in the IPC case there is nothing to wait for */ 65575889e88Seric if (mci->mci_pid == 0) 65633db8731Seric return (EX_OK); 65733db8731Seric 65833db8731Seric /* wait for the mailer process to die and collect status */ 65975889e88Seric st = waitfor(mci->mci_pid); 660588cad61Seric if (st == -1) 66178de67c1Seric { 662588cad61Seric syserr("endmailer %s: wait", name); 663588cad61Seric return (EX_SOFTWARE); 664c579ef51Seric } 66533db8731Seric 66633db8731Seric /* see if it died a horrid death */ 667c579ef51Seric if ((st & 0377) != 0) 668c579ef51Seric { 6695f73204aSeric syserr("mailer %s died with signal %o", name, st); 6705f73204aSeric ExitStat = EX_TEMPFAIL; 6715f73204aSeric return (EX_TEMPFAIL); 672c579ef51Seric } 67333db8731Seric 67433db8731Seric /* normal death -- return status */ 675588cad61Seric st = (st >> 8) & 0377; 676588cad61Seric return (st); 677c579ef51Seric } 678c579ef51Seric /* 679c579ef51Seric ** OPENMAILER -- open connection to mailer. 680c579ef51Seric ** 681c579ef51Seric ** Parameters: 682c579ef51Seric ** m -- mailer descriptor. 683c579ef51Seric ** pvp -- parameter vector to pass to mailer. 684c579ef51Seric ** ctladdr -- controlling address for user. 685c579ef51Seric ** clever -- create a full duplex connection. 686c579ef51Seric ** 687c579ef51Seric ** Returns: 68875889e88Seric ** The mail connection info struct for this connection. 68975889e88Seric ** NULL on failure. 690c579ef51Seric ** 691c579ef51Seric ** Side Effects: 692c579ef51Seric ** creates a mailer in a subprocess. 693c579ef51Seric */ 694c579ef51Seric 695b31e7f2bSeric MCI * 696b31e7f2bSeric openmailer(m, pvp, ctladdr, clever, e) 697588cad61Seric MAILER *m; 698c579ef51Seric char **pvp; 699c579ef51Seric ADDRESS *ctladdr; 700c579ef51Seric bool clever; 701b31e7f2bSeric ENVELOPE *e; 702c579ef51Seric { 7035dfc646bSeric int pid; 704b31e7f2bSeric register MCI *mci; 705f8952a83Seric int mpvect[2]; 706c579ef51Seric int rpvect[2]; 7075dfc646bSeric extern FILE *fdopen(); 7085dfc646bSeric 7096ef48975Seric if (tTd(11, 1)) 7105dfc646bSeric { 7118c57e552Seric printf("openmailer:"); 7125dfc646bSeric printav(pvp); 7135dfc646bSeric } 71435490626Seric errno = 0; 7155dfc646bSeric 716ef66a9d0Seric CurHostName = m->m_mailer; 717ef66a9d0Seric 71833db8731Seric /* 71933db8731Seric ** Deal with the special case of mail handled through an IPC 72033db8731Seric ** connection. 72133db8731Seric ** In this case we don't actually fork. We must be 72233db8731Seric ** running SMTP for this to work. We will return a 72333db8731Seric ** zero pid to indicate that we are running IPC. 724e7c1bd78Seric ** We also handle a debug version that just talks to stdin/out. 72533db8731Seric */ 72633db8731Seric 727e7c1bd78Seric /* check for Local Person Communication -- not for mortals!!! */ 728e7c1bd78Seric if (strcmp(m->m_mailer, "[LPC]") == 0) 729e7c1bd78Seric { 730b31e7f2bSeric mci = (MCI *) xalloc(sizeof *mci); 7312a087e90Seric bzero((char *) mci, sizeof *mci); 73275889e88Seric mci->mci_in = stdin; 73375889e88Seric mci->mci_out = stdout; 734b31e7f2bSeric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 73515d084d5Seric mci->mci_mailer = m; 736e7c1bd78Seric } 737b31e7f2bSeric else if (strcmp(m->m_mailer, "[IPC]") == 0 || 738914346b1Seric strcmp(m->m_mailer, "[TCP]") == 0) 73933db8731Seric { 74084f7cd1bSeric #ifdef DAEMON 741e103b48fSeric register int i; 7421277f9a8Seric register u_short port; 743e103b48fSeric char *curhost; 744b31e7f2bSeric extern MCI *mci_get(); 745e103b48fSeric extern char *hostsignature(); 74633db8731Seric 747ef66a9d0Seric CurHostName = pvp[1]; 748e103b48fSeric curhost = hostsignature(m, pvp[1], e); 749b31e7f2bSeric 75078bfb85bSeric if (curhost == NULL || curhost[0] == '\0') 75178bfb85bSeric { 75278bfb85bSeric syserr("null signature"); 75378bfb85bSeric return NULL; 75478bfb85bSeric } 75578bfb85bSeric 75633db8731Seric if (!clever) 75778bfb85bSeric { 75808b25121Seric syserr("554 non-clever IPC"); 75978bfb85bSeric return NULL; 76078bfb85bSeric } 76193b6e3cfSeric if (pvp[2] != NULL) 7621277f9a8Seric port = atoi(pvp[2]); 76393b6e3cfSeric else 7641277f9a8Seric port = 0; 765e103b48fSeric while (*curhost != '\0') 766ebc61751Sbloom { 767e103b48fSeric register char *p; 7687d55540cSeric static char hostbuf[MAXNAME]; 769e103b48fSeric 770e103b48fSeric /* pull the next host from the signature */ 771e103b48fSeric p = strchr(curhost, ':'); 772e103b48fSeric if (p == NULL) 773e103b48fSeric p = &curhost[strlen(curhost)]; 774e103b48fSeric strncpy(hostbuf, curhost, p - curhost); 775e103b48fSeric hostbuf[p - curhost] = '\0'; 776e103b48fSeric if (*p != '\0') 777e103b48fSeric p++; 778e103b48fSeric curhost = p; 779e103b48fSeric 78045a8316eSeric /* see if we already know that this host is fried */ 781e103b48fSeric CurHostName = hostbuf; 782e103b48fSeric mci = mci_get(hostbuf, m); 783b31e7f2bSeric if (mci->mci_state != MCIS_CLOSED) 7841fa7c2ebSeric { 7851fa7c2ebSeric if (tTd(11, 1)) 7861fa7c2ebSeric { 7871fa7c2ebSeric printf("openmailer: "); 7881fa7c2ebSeric mci_dump(mci); 7891fa7c2ebSeric } 79067088a9dSeric CurHostName = mci->mci_host; 79175889e88Seric return mci; 7921fa7c2ebSeric } 79315d084d5Seric mci->mci_mailer = m; 794b31e7f2bSeric if (mci->mci_exitstat != EX_OK) 795b31e7f2bSeric continue; 796b31e7f2bSeric 79775889e88Seric /* try the connection */ 798e103b48fSeric setproctitle("%s %s: %s", e->e_id, hostbuf, "user open"); 79908b25121Seric message("Connecting to %s (%s)...", 800e103b48fSeric hostbuf, m->m_name); 801e103b48fSeric i = makeconnection(hostbuf, port, mci, 802914346b1Seric bitnset(M_SECURE_PORT, m->m_flags)); 80375889e88Seric mci->mci_exitstat = i; 80475889e88Seric mci->mci_errno = errno; 80575889e88Seric if (i == EX_OK) 806b31e7f2bSeric { 807b31e7f2bSeric mci->mci_state = MCIS_OPENING; 808b31e7f2bSeric mci_cache(mci); 809b31e7f2bSeric break; 810b31e7f2bSeric } 811b31e7f2bSeric else if (tTd(11, 1)) 812b31e7f2bSeric printf("openmailer: makeconnection => stat=%d, errno=%d\n", 813b31e7f2bSeric i, errno); 814b31e7f2bSeric 81575889e88Seric 8165f73204aSeric /* enter status of this host */ 81775889e88Seric setstat(i); 818ed854c7bSeric } 8192a087e90Seric mci->mci_pid = 0; 820b31e7f2bSeric #else /* no DAEMON */ 82108b25121Seric syserr("554 openmailer: no IPC"); 8221fa7c2ebSeric if (tTd(11, 1)) 8231fa7c2ebSeric printf("openmailer: NULL\n"); 82475889e88Seric return NULL; 825b31e7f2bSeric #endif /* DAEMON */ 826588cad61Seric } 827b31e7f2bSeric else 828b31e7f2bSeric { 8296328bdf7Seric /* create a pipe to shove the mail through */ 830f8952a83Seric if (pipe(mpvect) < 0) 83125a99e2eSeric { 832588cad61Seric syserr("openmailer: pipe (to mailer)"); 8331fa7c2ebSeric if (tTd(11, 1)) 8341fa7c2ebSeric printf("openmailer: NULL\n"); 83575889e88Seric return NULL; 83625a99e2eSeric } 837c579ef51Seric 838c579ef51Seric /* if this mailer speaks smtp, create a return pipe */ 839c579ef51Seric if (clever && pipe(rpvect) < 0) 840c579ef51Seric { 841588cad61Seric syserr("openmailer: pipe (from mailer)"); 842c579ef51Seric (void) close(mpvect[0]); 843c579ef51Seric (void) close(mpvect[1]); 8441fa7c2ebSeric if (tTd(11, 1)) 8451fa7c2ebSeric printf("openmailer: NULL\n"); 84675889e88Seric return NULL; 847c579ef51Seric } 848c579ef51Seric 84933db8731Seric /* 85033db8731Seric ** Actually fork the mailer process. 85133db8731Seric ** DOFORK is clever about retrying. 8526984bfddSeric ** 8536984bfddSeric ** Dispose of SIGCHLD signal catchers that may be laying 8546984bfddSeric ** around so that endmail will get it. 85533db8731Seric */ 85633db8731Seric 857b31e7f2bSeric if (e->e_xfp != NULL) 858b31e7f2bSeric (void) fflush(e->e_xfp); /* for debugging */ 859588cad61Seric (void) fflush(stdout); 8606984bfddSeric # ifdef SIGCHLD 8616984bfddSeric (void) signal(SIGCHLD, SIG_DFL); 8626c2c3107Seric # endif /* SIGCHLD */ 86384f7cd1bSeric DOFORK(FORK); 864f129ec7dSeric /* pid is set by DOFORK */ 86525a99e2eSeric if (pid < 0) 86625a99e2eSeric { 86733db8731Seric /* failure */ 868588cad61Seric syserr("openmailer: cannot fork"); 869f8952a83Seric (void) close(mpvect[0]); 870f8952a83Seric (void) close(mpvect[1]); 871c579ef51Seric if (clever) 872c579ef51Seric { 873c579ef51Seric (void) close(rpvect[0]); 874c579ef51Seric (void) close(rpvect[1]); 875c579ef51Seric } 8761fa7c2ebSeric if (tTd(11, 1)) 8771fa7c2ebSeric printf("openmailer: NULL\n"); 87875889e88Seric return NULL; 87925a99e2eSeric } 88025a99e2eSeric else if (pid == 0) 88125a99e2eSeric { 88213088b9fSeric int i; 883dafbc479Seric int saveerrno; 88480c5307eSeric char **ep; 88580c5307eSeric char *env[MAXUSERENVIRON]; 88680c5307eSeric extern char **environ; 8875f73204aSeric extern int DtableSize; 88813088b9fSeric 88925a99e2eSeric /* child -- set up input & exec mailer */ 89003ab8e55Seric /* make diagnostic output be standard output */ 8918f0e7860Seric (void) signal(SIGINT, SIG_IGN); 8928f0e7860Seric (void) signal(SIGHUP, SIG_IGN); 8930984da9fSeric (void) signal(SIGTERM, SIG_DFL); 894f8952a83Seric 8951caa9a59Seric /* close any other cached connections */ 8961caa9a59Seric mci_flush(FALSE, mci); 8971caa9a59Seric 898b31e7f2bSeric /* arrange to filter std & diag output of command */ 899c579ef51Seric if (clever) 900c579ef51Seric { 901c579ef51Seric (void) close(rpvect[0]); 902c579ef51Seric (void) close(1); 903c579ef51Seric (void) dup(rpvect[1]); 904c579ef51Seric (void) close(rpvect[1]); 905c579ef51Seric } 906276723a8Seric else if (OpMode == MD_SMTP || HoldErrs) 907f8952a83Seric { 908588cad61Seric /* put mailer output in transcript */ 909f8952a83Seric (void) close(1); 910b31e7f2bSeric (void) dup(fileno(e->e_xfp)); 911f8952a83Seric } 912db8841e9Seric (void) close(2); 913db8841e9Seric (void) dup(1); 914f8952a83Seric 915f8952a83Seric /* arrange to get standard input */ 916f8952a83Seric (void) close(mpvect[1]); 917db8841e9Seric (void) close(0); 918f8952a83Seric if (dup(mpvect[0]) < 0) 91925a99e2eSeric { 92025a99e2eSeric syserr("Cannot dup to zero!"); 921a590b978Seric _exit(EX_OSERR); 92225a99e2eSeric } 923f8952a83Seric (void) close(mpvect[0]); 92457fc6f17Seric if (!bitnset(M_RESTR, m->m_flags)) 9250984da9fSeric { 92653e3fa05Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 927e36b99e2Seric { 928e36b99e2Seric (void) setgid(DefGid); 929898a126bSbostic (void) initgroups(DefUser, DefGid); 930e36b99e2Seric (void) setuid(DefUid); 931e36b99e2Seric } 932e36b99e2Seric else 93369f29479Seric { 934e36b99e2Seric (void) setgid(ctladdr->q_gid); 935898a126bSbostic (void) initgroups(ctladdr->q_ruser? 936898a126bSbostic ctladdr->q_ruser: ctladdr->q_user, 937898a126bSbostic ctladdr->q_gid); 938e36b99e2Seric (void) setuid(ctladdr->q_uid); 93969f29479Seric } 9400984da9fSeric } 941588cad61Seric 94213088b9fSeric /* arrange for all the files to be closed */ 943b31e7f2bSeric for (i = 3; i < DtableSize; i++) 944b31e7f2bSeric { 945fccb3f7aSbostic register int j; 946fccb3f7aSbostic if ((j = fcntl(i, F_GETFD, 0)) != -1) 947fccb3f7aSbostic (void)fcntl(i, F_SETFD, j|1); 948fccb3f7aSbostic } 94933db8731Seric 95080c5307eSeric /* set up the mailer environment */ 95180c5307eSeric i = 0; 95280c5307eSeric env[i++] = "AGENT=sendmail"; 95380c5307eSeric for (ep = environ; *ep != NULL; ep++) 95480c5307eSeric { 95580c5307eSeric if (strncmp(*ep, "TZ=", 3) == 0) 95680c5307eSeric env[i++] = *ep; 95780c5307eSeric } 95880c5307eSeric env[i++] = NULL; 95980c5307eSeric 96033db8731Seric /* try to execute the mailer */ 961d7a0480eSeric execve(m->m_mailer, pvp, env); 962dafbc479Seric saveerrno = errno; 96313088b9fSeric syserr("Cannot exec %s", m->m_mailer); 96495b76e4bSeric if (m == LocalMailer) 96555f33c03Seric _exit(EX_TEMPFAIL); 966e2de2524Seric if (transienterror(saveerrno)) 96795b76e4bSeric _exit(EX_TEMPFAIL); 968a590b978Seric _exit(EX_UNAVAILABLE); 96925a99e2eSeric } 97025a99e2eSeric 971f8952a83Seric /* 972c579ef51Seric ** Set up return value. 973f8952a83Seric */ 974f8952a83Seric 975b31e7f2bSeric mci = (MCI *) xalloc(sizeof *mci); 9762a087e90Seric bzero((char *) mci, sizeof *mci); 97715d084d5Seric mci->mci_mailer = m; 978b31e7f2bSeric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 9792a087e90Seric mci->mci_pid = pid; 980f8952a83Seric (void) close(mpvect[0]); 98175889e88Seric mci->mci_out = fdopen(mpvect[1], "w"); 982c579ef51Seric if (clever) 98325a99e2eSeric { 984c579ef51Seric (void) close(rpvect[1]); 98575889e88Seric mci->mci_in = fdopen(rpvect[0], "r"); 98675889e88Seric } 98775889e88Seric else 98875889e88Seric { 98975889e88Seric mci->mci_flags |= MCIF_TEMP; 99075889e88Seric mci->mci_in = NULL; 99175889e88Seric } 992b31e7f2bSeric } 993b31e7f2bSeric 994b31e7f2bSeric /* 995b31e7f2bSeric ** If we are in SMTP opening state, send initial protocol. 996b31e7f2bSeric */ 997b31e7f2bSeric 998b31e7f2bSeric if (clever && mci->mci_state != MCIS_CLOSED) 999b31e7f2bSeric { 1000b31e7f2bSeric smtpinit(m, mci, e); 1001b31e7f2bSeric } 10021fa7c2ebSeric if (tTd(11, 1)) 10031fa7c2ebSeric { 10041fa7c2ebSeric printf("openmailer: "); 10051fa7c2ebSeric mci_dump(mci); 10061fa7c2ebSeric } 1007c579ef51Seric 100875889e88Seric return mci; 100925a99e2eSeric } 101025a99e2eSeric /* 101125a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 101225a99e2eSeric ** 101325a99e2eSeric ** Parameters: 101425a99e2eSeric ** stat -- the status code from the mailer (high byte 101525a99e2eSeric ** only; core dumps must have been taken care of 101625a99e2eSeric ** already). 101781161401Seric ** m -- the mailer info for this mailer. 101881161401Seric ** mci -- the mailer connection info -- can be NULL if the 101981161401Seric ** response is given before the connection is made. 102081161401Seric ** e -- the current envelope. 102125a99e2eSeric ** 102225a99e2eSeric ** Returns: 1023db8841e9Seric ** none. 102425a99e2eSeric ** 102525a99e2eSeric ** Side Effects: 1026c1f9df2cSeric ** Errors may be incremented. 102725a99e2eSeric ** ExitStat may be set. 102825a99e2eSeric */ 102925a99e2eSeric 103081161401Seric giveresponse(stat, m, mci, e) 103125a99e2eSeric int stat; 1032588cad61Seric register MAILER *m; 103381161401Seric register MCI *mci; 1034198d9be0Seric ENVELOPE *e; 103525a99e2eSeric { 103625a99e2eSeric register char *statmsg; 103725a99e2eSeric extern char *SysExMsg[]; 103825a99e2eSeric register int i; 1039d4bd8f0eSbostic extern int N_SysEx; 1040d4bd8f0eSbostic #ifdef NAMED_BIND 1041d4bd8f0eSbostic extern int h_errno; 1042d4bd8f0eSbostic #endif 1043198d9be0Seric char buf[MAXLINE]; 10447d55540cSeric extern char *errstring(); 104525a99e2eSeric 104613bbc08cSeric /* 104713bbc08cSeric ** Compute status message from code. 104813bbc08cSeric */ 104913bbc08cSeric 105025a99e2eSeric i = stat - EX__BASE; 1051588cad61Seric if (stat == 0) 1052588cad61Seric statmsg = "250 Sent"; 1053588cad61Seric else if (i < 0 || i > N_SysEx) 1054588cad61Seric { 1055588cad61Seric (void) sprintf(buf, "554 unknown mailer error %d", stat); 1056588cad61Seric stat = EX_UNAVAILABLE; 1057588cad61Seric statmsg = buf; 1058588cad61Seric } 1059198d9be0Seric else if (stat == EX_TEMPFAIL) 1060198d9be0Seric { 10617d55540cSeric (void) strcpy(buf, SysExMsg[i] + 1); 1062d4bd8f0eSbostic #ifdef NAMED_BIND 1063f28da541Smiriam if (h_errno == TRY_AGAIN) 1064f28da541Smiriam statmsg = errstring(h_errno+MAX_ERRNO); 1065f28da541Smiriam else 1066d4bd8f0eSbostic #endif 1067f28da541Smiriam { 10688557d168Seric if (errno != 0) 1069d87e85f3Seric statmsg = errstring(errno); 1070d87e85f3Seric else 1071d87e85f3Seric { 1072d87e85f3Seric #ifdef SMTP 1073d87e85f3Seric extern char SmtpError[]; 1074d87e85f3Seric 1075d87e85f3Seric statmsg = SmtpError; 10766c2c3107Seric #else /* SMTP */ 1077d87e85f3Seric statmsg = NULL; 10786c2c3107Seric #endif /* SMTP */ 1079d87e85f3Seric } 1080f28da541Smiriam } 1081d87e85f3Seric if (statmsg != NULL && statmsg[0] != '\0') 1082d87e85f3Seric { 108387c9b3e7Seric (void) strcat(buf, ": "); 1084d87e85f3Seric (void) strcat(buf, statmsg); 10858557d168Seric } 1086198d9be0Seric statmsg = buf; 1087198d9be0Seric } 108825a99e2eSeric else 1089d87e85f3Seric { 109025a99e2eSeric statmsg = SysExMsg[i]; 10917d55540cSeric if (*statmsg++ == ':') 10927d55540cSeric { 10937d55540cSeric (void) sprintf(buf, "%s: %s", statmsg, errstring(errno)); 10947d55540cSeric statmsg = buf; 10957d55540cSeric } 1096d87e85f3Seric } 1097588cad61Seric 1098588cad61Seric /* 1099588cad61Seric ** Print the message as appropriate 1100588cad61Seric */ 1101588cad61Seric 1102198d9be0Seric if (stat == EX_OK || stat == EX_TEMPFAIL) 1103e12d03eeSeric message(&statmsg[4], errstring(errno)); 110425a99e2eSeric else 110525a99e2eSeric { 1106c1f9df2cSeric Errors++; 1107e12d03eeSeric usrerr(statmsg, errstring(errno)); 110825a99e2eSeric } 110925a99e2eSeric 111025a99e2eSeric /* 111125a99e2eSeric ** Final cleanup. 111225a99e2eSeric ** Log a record of the transaction. Compute the new 111325a99e2eSeric ** ExitStat -- if we already had an error, stick with 111425a99e2eSeric ** that. 111525a99e2eSeric */ 111625a99e2eSeric 11172f624c86Seric if (LogLevel > ((stat == EX_TEMPFAIL) ? 8 : (stat == EX_OK) ? 7 : 6)) 111881161401Seric logdelivery(m, mci, &statmsg[4], e); 1119eb238f8cSeric 1120eb238f8cSeric if (stat != EX_TEMPFAIL) 1121eb238f8cSeric setstat(stat); 1122198d9be0Seric if (stat != EX_OK) 1123198d9be0Seric { 1124198d9be0Seric if (e->e_message != NULL) 1125198d9be0Seric free(e->e_message); 1126198d9be0Seric e->e_message = newstr(&statmsg[4]); 1127198d9be0Seric } 11288557d168Seric errno = 0; 1129d4bd8f0eSbostic #ifdef NAMED_BIND 1130f28da541Smiriam h_errno = 0; 1131d4bd8f0eSbostic #endif 1132eb238f8cSeric } 1133eb238f8cSeric /* 1134eb238f8cSeric ** LOGDELIVERY -- log the delivery in the system log 1135eb238f8cSeric ** 1136eb238f8cSeric ** Parameters: 113781161401Seric ** m -- the mailer info. Can be NULL for initial queue. 113881161401Seric ** mci -- the mailer connection info -- can be NULL if the 113981161401Seric ** log is occuring when no connection is active. 114081161401Seric ** stat -- the message to print for the status. 114181161401Seric ** e -- the current envelope. 1142eb238f8cSeric ** 1143eb238f8cSeric ** Returns: 1144eb238f8cSeric ** none 1145eb238f8cSeric ** 1146eb238f8cSeric ** Side Effects: 1147eb238f8cSeric ** none 1148eb238f8cSeric */ 1149eb238f8cSeric 115081161401Seric logdelivery(m, mci, stat, e) 115181161401Seric MAILER *m; 115281161401Seric register MCI *mci; 1153eb238f8cSeric char *stat; 1154b31e7f2bSeric register ENVELOPE *e; 11555cf56be3Seric { 1156eb238f8cSeric # ifdef LOG 11579507d1f9Seric char *curhost; 1158d6acf3eeSeric char buf[512]; 11599507d1f9Seric extern char *pintvl(); 11609507d1f9Seric extern char *macvalue(); 11619507d1f9Seric 116248ed5d33Seric (void) sprintf(buf, "delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 116381161401Seric 116448ed5d33Seric if (m != NULL) 116571ff6caaSeric { 116648ed5d33Seric (void) strcat(buf, ", mailer="); 116748ed5d33Seric (void) strcat(buf, m->m_name); 116871ff6caaSeric } 116948ed5d33Seric 117048ed5d33Seric if (mci != NULL && mci->mci_host != NULL) 117171ff6caaSeric { 117271ff6caaSeric # ifdef DAEMON 117371ff6caaSeric extern struct sockaddr_in CurHostAddr; 117471ff6caaSeric extern char *inet_ntoa(); 117548ed5d33Seric # endif 117671ff6caaSeric 117748ed5d33Seric (void) strcat(buf, ", relay="); 117848ed5d33Seric (void) strcat(buf, mci->mci_host); 117948ed5d33Seric 118048ed5d33Seric # ifdef DAEMON 118148ed5d33Seric (void) strcat(buf, " ("); 118248ed5d33Seric (void) strcat(buf, inet_ntoa(CurHostAddr.sin_addr)); 118348ed5d33Seric (void) strcat(buf, ")"); 118471ff6caaSeric # endif 118571ff6caaSeric } 11869507d1f9Seric else 118748ed5d33Seric { 118848ed5d33Seric char *p = macvalue('h', e); 11899507d1f9Seric 119048ed5d33Seric if (p != NULL && p[0] != '\0') 119148ed5d33Seric { 119248ed5d33Seric (void) strcat(buf, ", relay="); 119348ed5d33Seric (void) strcat(buf, p); 119448ed5d33Seric } 119548ed5d33Seric } 1196d6acf3eeSeric 1197d6acf3eeSeric syslog(LOG_INFO, "%s: to=%s, %s, stat=%s", 1198d6acf3eeSeric e->e_id, e->e_to, buf, stat); 11996c2c3107Seric # endif /* LOG */ 120025a99e2eSeric } 120125a99e2eSeric /* 120251552439Seric ** PUTFROMLINE -- output a UNIX-style from line (or whatever) 120325a99e2eSeric ** 120451552439Seric ** This can be made an arbitrary message separator by changing $l 120551552439Seric ** 12069b6c17a6Seric ** One of the ugliest hacks seen by human eyes is contained herein: 12079b6c17a6Seric ** UUCP wants those stupid "remote from <host>" lines. Why oh why 12089b6c17a6Seric ** does a well-meaning programmer such as myself have to deal with 12099b6c17a6Seric ** this kind of antique garbage???? 121025a99e2eSeric ** 121125a99e2eSeric ** Parameters: 121251552439Seric ** fp -- the file to output to. 121351552439Seric ** m -- the mailer describing this entry. 121425a99e2eSeric ** 121525a99e2eSeric ** Returns: 121651552439Seric ** none 121725a99e2eSeric ** 121825a99e2eSeric ** Side Effects: 121951552439Seric ** outputs some text to fp. 122025a99e2eSeric */ 122125a99e2eSeric 1222b31e7f2bSeric putfromline(fp, m, e) 122351552439Seric register FILE *fp; 122451552439Seric register MAILER *m; 1225b31e7f2bSeric ENVELOPE *e; 122625a99e2eSeric { 12272bc47524Seric char *template = "\201l\n"; 122851552439Seric char buf[MAXLINE]; 122925a99e2eSeric 123057fc6f17Seric if (bitnset(M_NHDR, m->m_flags)) 123151552439Seric return; 123213bbc08cSeric 12332c7e1b8dSeric # ifdef UGLYUUCP 123457fc6f17Seric if (bitnset(M_UGLYUUCP, m->m_flags)) 123574b6e67bSeric { 1236ea09d6edSeric char *bang; 1237ea09d6edSeric char xbuf[MAXLINE]; 123874b6e67bSeric 1239ee4b0922Seric expand("\201g", buf, &buf[sizeof buf - 1], e); 12406c2c3107Seric bang = strchr(buf, '!'); 124174b6e67bSeric if (bang == NULL) 124208b25121Seric syserr("554 No ! in UUCP! (%s)", buf); 124374b6e67bSeric else 1244588cad61Seric { 1245ea09d6edSeric *bang++ = '\0'; 12462bc47524Seric (void) sprintf(xbuf, "From %s \201d remote from %s\n", bang, buf); 1247ea09d6edSeric template = xbuf; 124874b6e67bSeric } 1249588cad61Seric } 12506c2c3107Seric # endif /* UGLYUUCP */ 1251b31e7f2bSeric expand(template, buf, &buf[sizeof buf - 1], e); 125277b52738Seric putline(buf, fp, m); 1253bc6e2962Seric } 1254bc6e2962Seric /* 125551552439Seric ** PUTBODY -- put the body of a message. 125651552439Seric ** 125751552439Seric ** Parameters: 125851552439Seric ** fp -- file to output onto. 125977b52738Seric ** m -- a mailer descriptor to control output format. 12609a6a5f55Seric ** e -- the envelope to put out. 126151552439Seric ** 126251552439Seric ** Returns: 126351552439Seric ** none. 126451552439Seric ** 126551552439Seric ** Side Effects: 126651552439Seric ** The message is written onto fp. 126751552439Seric */ 126851552439Seric 126977b52738Seric putbody(fp, m, e) 127051552439Seric FILE *fp; 1271588cad61Seric MAILER *m; 12729a6a5f55Seric register ENVELOPE *e; 127351552439Seric { 127477b52738Seric char buf[MAXLINE]; 127551552439Seric 127651552439Seric /* 127751552439Seric ** Output the body of the message 127851552439Seric */ 127951552439Seric 12809a6a5f55Seric if (e->e_dfp == NULL) 128151552439Seric { 12829a6a5f55Seric if (e->e_df != NULL) 12839a6a5f55Seric { 12849a6a5f55Seric e->e_dfp = fopen(e->e_df, "r"); 12859a6a5f55Seric if (e->e_dfp == NULL) 12868f9146b0Srick syserr("putbody: Cannot open %s for %s from %s", 12878f9146b0Srick e->e_df, e->e_to, e->e_from); 12889a6a5f55Seric } 12899a6a5f55Seric else 129077b52738Seric putline("<<< No Message Collected >>>", fp, m); 12919a6a5f55Seric } 12929a6a5f55Seric if (e->e_dfp != NULL) 12939a6a5f55Seric { 12949a6a5f55Seric rewind(e->e_dfp); 129577b52738Seric while (!ferror(fp) && fgets(buf, sizeof buf, e->e_dfp) != NULL) 129624fc8aeeSeric { 129724fc8aeeSeric if (buf[0] == 'F' && bitnset(M_ESCFROM, m->m_flags) && 1298d6fa2b58Sbostic strncmp(buf, "From ", 5) == 0) 12993462ad9eSeric (void) putc('>', fp); 130077b52738Seric putline(buf, fp, m); 130124fc8aeeSeric } 130251552439Seric 13039a6a5f55Seric if (ferror(e->e_dfp)) 130451552439Seric { 130551552439Seric syserr("putbody: read error"); 130651552439Seric ExitStat = EX_IOERR; 130751552439Seric } 130851552439Seric } 130951552439Seric 131051552439Seric (void) fflush(fp); 131151552439Seric if (ferror(fp) && errno != EPIPE) 131251552439Seric { 131351552439Seric syserr("putbody: write error"); 131451552439Seric ExitStat = EX_IOERR; 131551552439Seric } 131651552439Seric errno = 0; 131725a99e2eSeric } 131825a99e2eSeric /* 131925a99e2eSeric ** MAILFILE -- Send a message to a file. 132025a99e2eSeric ** 1321f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 1322f129ec7dSeric ** bits, sendmail will try to become the owner of that file 1323f129ec7dSeric ** rather than the real user. Obviously, this only works if 1324f129ec7dSeric ** sendmail runs as root. 1325f129ec7dSeric ** 1326588cad61Seric ** This could be done as a subordinate mailer, except that it 1327588cad61Seric ** is used implicitly to save messages in ~/dead.letter. We 1328588cad61Seric ** view this as being sufficiently important as to include it 1329588cad61Seric ** here. For example, if the system is dying, we shouldn't have 1330588cad61Seric ** to create another process plus some pipes to save the message. 1331588cad61Seric ** 133225a99e2eSeric ** Parameters: 133325a99e2eSeric ** filename -- the name of the file to send to. 13346259796dSeric ** ctladdr -- the controlling address header -- includes 13356259796dSeric ** the userid/groupid to be when sending. 133625a99e2eSeric ** 133725a99e2eSeric ** Returns: 133825a99e2eSeric ** The exit code associated with the operation. 133925a99e2eSeric ** 134025a99e2eSeric ** Side Effects: 134125a99e2eSeric ** none. 134225a99e2eSeric */ 134325a99e2eSeric 1344b31e7f2bSeric mailfile(filename, ctladdr, e) 134525a99e2eSeric char *filename; 13466259796dSeric ADDRESS *ctladdr; 1347b31e7f2bSeric register ENVELOPE *e; 134825a99e2eSeric { 134925a99e2eSeric register FILE *f; 135032d19d43Seric register int pid; 135115d084d5Seric int mode; 135225a99e2eSeric 135332d19d43Seric /* 135432d19d43Seric ** Fork so we can change permissions here. 135532d19d43Seric ** Note that we MUST use fork, not vfork, because of 135632d19d43Seric ** the complications of calling subroutines, etc. 135732d19d43Seric */ 135832d19d43Seric 135932d19d43Seric DOFORK(fork); 136032d19d43Seric 136132d19d43Seric if (pid < 0) 136232d19d43Seric return (EX_OSERR); 136332d19d43Seric else if (pid == 0) 136432d19d43Seric { 136532d19d43Seric /* child -- actually write to file */ 1366f129ec7dSeric struct stat stb; 1367f129ec7dSeric 13680984da9fSeric (void) signal(SIGINT, SIG_DFL); 13690984da9fSeric (void) signal(SIGHUP, SIG_DFL); 13700984da9fSeric (void) signal(SIGTERM, SIG_DFL); 13713462ad9eSeric (void) umask(OldUmask); 137295f16dc0Seric 1373f129ec7dSeric if (stat(filename, &stb) < 0) 1374e6e1265fSeric stb.st_mode = 0666; 137515d084d5Seric mode = stb.st_mode; 137695f16dc0Seric 137795f16dc0Seric /* limit the errors to those actually caused in the child */ 137895f16dc0Seric errno = 0; 137995f16dc0Seric ExitStat = EX_OK; 138095f16dc0Seric 1381f129ec7dSeric if (bitset(0111, stb.st_mode)) 1382f129ec7dSeric exit(EX_CANTCREAT); 138303827b5fSeric if (ctladdr == NULL) 13848f9146b0Srick ctladdr = &e->e_from; 138515d084d5Seric else 138615d084d5Seric { 138715d084d5Seric /* ignore setuid and setgid bits */ 138815d084d5Seric mode &= ~(S_ISGID|S_ISUID); 138915d084d5Seric } 139015d084d5Seric 13918f9146b0Srick /* we have to open the dfile BEFORE setuid */ 13928f9146b0Srick if (e->e_dfp == NULL && e->e_df != NULL) 13938f9146b0Srick { 13948f9146b0Srick e->e_dfp = fopen(e->e_df, "r"); 139595f16dc0Seric if (e->e_dfp == NULL) 139695f16dc0Seric { 13978f9146b0Srick syserr("mailfile: Cannot open %s for %s from %s", 13988f9146b0Srick e->e_df, e->e_to, e->e_from); 13998f9146b0Srick } 14008f9146b0Srick } 14018f9146b0Srick 140215d084d5Seric if (!bitset(S_ISGID, mode) || setgid(stb.st_gid) < 0) 1403e36b99e2Seric { 140495f16dc0Seric if (ctladdr->q_uid == 0) 140595f16dc0Seric { 1406e36b99e2Seric (void) setgid(DefGid); 1407898a126bSbostic (void) initgroups(DefUser, DefGid); 140895f16dc0Seric } 140995f16dc0Seric else 141095f16dc0Seric { 14116259796dSeric (void) setgid(ctladdr->q_gid); 1412898a126bSbostic (void) initgroups(ctladdr->q_ruser ? 1413898a126bSbostic ctladdr->q_ruser : ctladdr->q_user, 1414898a126bSbostic ctladdr->q_gid); 1415898a126bSbostic } 1416e36b99e2Seric } 141715d084d5Seric if (!bitset(S_ISUID, mode) || setuid(stb.st_uid) < 0) 1418e36b99e2Seric { 1419e36b99e2Seric if (ctladdr->q_uid == 0) 1420e36b99e2Seric (void) setuid(DefUid); 1421e36b99e2Seric else 14226259796dSeric (void) setuid(ctladdr->q_uid); 1423e36b99e2Seric } 142495f16dc0Seric FileName = filename; 142595f16dc0Seric LineNumber = 0; 142627628d59Seric f = dfopen(filename, "a"); 142725a99e2eSeric if (f == NULL) 142895f16dc0Seric { 142908b25121Seric message("554 cannot open"); 143032d19d43Seric exit(EX_CANTCREAT); 143195f16dc0Seric } 143225a99e2eSeric 1433b31e7f2bSeric putfromline(f, ProgMailer, e); 1434b843d759Seric (*e->e_puthdr)(f, ProgMailer, e); 143577b52738Seric putline("\n", f, ProgMailer); 1436b843d759Seric (*e->e_putbody)(f, ProgMailer, e); 143777b52738Seric putline("\n", f, ProgMailer); 143895f16dc0Seric if (ferror(f)) 143995f16dc0Seric { 144008b25121Seric message("451 I/O error"); 144195f16dc0Seric setstat(EX_IOERR); 144295f16dc0Seric } 1443ee4b0922Seric (void) xfclose(f, "mailfile", filename); 144432d19d43Seric (void) fflush(stdout); 1445e36b99e2Seric 144627628d59Seric /* reset ISUID & ISGID bits for paranoid systems */ 1447c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 144895f16dc0Seric exit(ExitStat); 144913bbc08cSeric /*NOTREACHED*/ 145032d19d43Seric } 145132d19d43Seric else 145232d19d43Seric { 145332d19d43Seric /* parent -- wait for exit status */ 1454588cad61Seric int st; 145532d19d43Seric 1456588cad61Seric st = waitfor(pid); 1457588cad61Seric if ((st & 0377) != 0) 1458588cad61Seric return (EX_UNAVAILABLE); 1459588cad61Seric else 1460588cad61Seric return ((st >> 8) & 0377); 14618f9146b0Srick /*NOTREACHED*/ 146232d19d43Seric } 146325a99e2eSeric } 1464ea4dc939Seric /* 1465ea4dc939Seric ** SENDALL -- actually send all the messages. 1466ea4dc939Seric ** 1467ea4dc939Seric ** Parameters: 14680c52a0b3Seric ** e -- the envelope to send. 14697b95031aSeric ** mode -- the delivery mode to use. If SM_DEFAULT, use 14707b95031aSeric ** the current SendMode. 1471ea4dc939Seric ** 1472ea4dc939Seric ** Returns: 1473ea4dc939Seric ** none. 1474ea4dc939Seric ** 1475ea4dc939Seric ** Side Effects: 1476ea4dc939Seric ** Scans the send lists and sends everything it finds. 14770c52a0b3Seric ** Delivers any appropriate error messages. 1478276723a8Seric ** If we are running in a non-interactive mode, takes the 1479276723a8Seric ** appropriate action. 1480ea4dc939Seric */ 1481ea4dc939Seric 1482276723a8Seric sendall(e, mode) 14830c52a0b3Seric ENVELOPE *e; 1484276723a8Seric char mode; 1485ea4dc939Seric { 1486e77e673fSeric register ADDRESS *q; 14879836bea2Seric char *owner; 14889836bea2Seric int otherowners; 14899836bea2Seric ENVELOPE *splitenv = NULL; 1490ea4dc939Seric 14917b95031aSeric /* determine actual delivery mode */ 14927b95031aSeric if (mode == SM_DEFAULT) 14937b95031aSeric { 14945f73204aSeric extern bool shouldqueue(); 14957b95031aSeric 14967b95031aSeric mode = SendMode; 14973f324333Seric if (mode != SM_VERIFY && 14983f324333Seric shouldqueue(e->e_msgpriority, e->e_ctime)) 14993f324333Seric mode = SM_QUEUE; 15007b95031aSeric } 15017b95031aSeric 1502df864a8fSeric if (tTd(13, 1)) 1503772e6e50Seric { 1504ee4b0922Seric printf("\nSENDALL: mode %c, e_from ", mode); 1505ee4b0922Seric printaddr(&e->e_from, FALSE); 1506ee4b0922Seric printf("sendqueue:\n"); 15070c52a0b3Seric printaddr(e->e_sendqueue, TRUE); 1508772e6e50Seric } 1509ea4dc939Seric 15100c52a0b3Seric /* 1511276723a8Seric ** Do any preprocessing necessary for the mode we are running. 1512588cad61Seric ** Check to make sure the hop count is reasonable. 1513588cad61Seric ** Delete sends to the sender in mailing lists. 1514276723a8Seric */ 1515276723a8Seric 1516588cad61Seric CurEnv = e; 1517276723a8Seric 15181d57450bSeric if (e->e_hopcount > MaxHopCount) 1519276723a8Seric { 15208f9146b0Srick errno = 0; 152108b25121Seric syserr("554 too many hops %d (%d max): from %s, to %s", 1522655518ecSeric e->e_hopcount, MaxHopCount, e->e_from.q_paddr, 1523655518ecSeric e->e_sendqueue->q_paddr); 1524588cad61Seric return; 1525588cad61Seric } 1526588cad61Seric 1527588cad61Seric if (!MeToo) 1528276723a8Seric { 1529f3d6c55cSeric extern ADDRESS *recipient(); 1530f3d6c55cSeric 153175f1ade9Seric if (tTd(13, 5)) 153275f1ade9Seric { 153375f1ade9Seric printf("sendall: QDONTSEND "); 153475f1ade9Seric printaddr(&e->e_from, FALSE); 153575f1ade9Seric } 1536ee4b0922Seric e->e_from.q_flags |= QDONTSEND; 1537b843d759Seric (void) recipient(&e->e_from, &e->e_sendqueue, e); 1538276723a8Seric } 1539588cad61Seric 15409836bea2Seric /* 15419836bea2Seric ** Handle alias owners. 15429836bea2Seric ** 15439836bea2Seric ** We scan up the q_alias chain looking for owners. 15449836bea2Seric ** We discard owners that are the same as the return path. 15459836bea2Seric */ 15469836bea2Seric 15479836bea2Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 15489836bea2Seric { 15499836bea2Seric register struct address *a; 15509836bea2Seric 15519836bea2Seric for (a = q; a != NULL && a->q_owner == NULL; a = a->q_alias) 15529836bea2Seric continue; 15539836bea2Seric if (a != NULL) 15549836bea2Seric q->q_owner = a->q_owner; 15559836bea2Seric 1556ee4b0922Seric if (q->q_owner != NULL && 1557ee4b0922Seric !bitset(QDONTSEND, q->q_flags) && 1558ee4b0922Seric strcmp(q->q_owner, e->e_from.q_paddr) == 0) 15599836bea2Seric q->q_owner = NULL; 15609836bea2Seric } 15619836bea2Seric 15629836bea2Seric owner = ""; 15639836bea2Seric otherowners = 1; 15649836bea2Seric while (owner != NULL && otherowners > 0) 15659836bea2Seric { 15669836bea2Seric owner = NULL; 15679836bea2Seric otherowners = 0; 15689836bea2Seric 15699836bea2Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 15709836bea2Seric { 15719836bea2Seric if (bitset(QDONTSEND, q->q_flags)) 15729836bea2Seric continue; 15739836bea2Seric 15749836bea2Seric if (q->q_owner != NULL) 15759836bea2Seric { 15769836bea2Seric if (owner == NULL) 15779836bea2Seric owner = q->q_owner; 15789836bea2Seric else if (owner != q->q_owner) 15799836bea2Seric { 15809836bea2Seric if (strcmp(owner, q->q_owner) == 0) 15819836bea2Seric { 15829836bea2Seric /* make future comparisons cheap */ 15839836bea2Seric q->q_owner = owner; 15849836bea2Seric } 15859836bea2Seric else 15869836bea2Seric { 15879836bea2Seric otherowners++; 15889836bea2Seric } 15899836bea2Seric owner = q->q_owner; 15909836bea2Seric } 15919836bea2Seric } 15929836bea2Seric else 15939836bea2Seric { 15949836bea2Seric otherowners++; 15959836bea2Seric } 15969836bea2Seric } 15979836bea2Seric 15989836bea2Seric if (owner != NULL && otherowners > 0) 15999836bea2Seric { 16009836bea2Seric register ENVELOPE *ee; 16019836bea2Seric extern HDR *copyheader(); 16029836bea2Seric extern ADDRESS *copyqueue(); 16039836bea2Seric 1604ee4b0922Seric /* 1605ee4b0922Seric ** Split this envelope into two. 1606ee4b0922Seric */ 1607ee4b0922Seric 16089836bea2Seric ee = (ENVELOPE *) xalloc(sizeof(ENVELOPE)); 1609ee4b0922Seric *ee = *e; 16109836bea2Seric ee->e_id = NULL; 1611ee4b0922Seric (void) queuename(ee, '\0'); 1612ee4b0922Seric 1613ee4b0922Seric if (tTd(13, 1)) 1614ee4b0922Seric printf("sendall: split %s into %s\n", 1615ee4b0922Seric e->e_id, ee->e_id); 1616ee4b0922Seric 16179836bea2Seric ee->e_header = copyheader(e->e_header); 16189836bea2Seric ee->e_sendqueue = copyqueue(e->e_sendqueue); 16199836bea2Seric ee->e_errorqueue = copyqueue(e->e_errorqueue); 16209836bea2Seric ee->e_flags = e->e_flags & ~(EF_INQUEUE|EF_CLRQUEUE); 1621*579ef0ddSeric setsender(owner, ee, NULL, TRUE); 1622ee4b0922Seric if (tTd(13, 5)) 1623ee4b0922Seric { 1624ee4b0922Seric printf("sendall(split): QDONTSEND "); 1625ee4b0922Seric printaddr(&ee->e_from, FALSE); 1626ee4b0922Seric } 1627ee4b0922Seric ee->e_from.q_flags |= QDONTSEND; 1628ee4b0922Seric ee->e_dfp = NULL; 1629ee4b0922Seric ee->e_xfp = NULL; 1630ee4b0922Seric ee->e_lockfp = NULL; 1631ee4b0922Seric ee->e_df = NULL; 16329836bea2Seric ee->e_sibling = splitenv; 16339836bea2Seric splitenv = ee; 16349836bea2Seric 16359836bea2Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 16369836bea2Seric if (q->q_owner == owner) 16379836bea2Seric q->q_flags |= QDONTSEND; 16389836bea2Seric for (q = ee->e_sendqueue; q != NULL; q = q->q_next) 16399836bea2Seric if (q->q_owner != owner) 16409836bea2Seric q->q_flags |= QDONTSEND; 16419836bea2Seric 16429836bea2Seric if (e->e_df != NULL && mode != SM_VERIFY) 16439836bea2Seric { 16449836bea2Seric ee->e_dfp = NULL; 1645239b3abaSeric ee->e_df = newstr(queuename(ee, 'd')); 16469836bea2Seric if (link(e->e_df, ee->e_df) < 0) 16479836bea2Seric { 16489836bea2Seric syserr("sendall: link(%s, %s)", 16499836bea2Seric e->e_df, ee->e_df); 16509836bea2Seric } 16519836bea2Seric } 1652ee4b0922Seric 1653ee4b0922Seric if (mode != SM_VERIFY) 1654ee4b0922Seric { 1655ee4b0922Seric char xfbuf1[20], xfbuf2[20]; 1656ee4b0922Seric 1657ee4b0922Seric (void) strcpy(xfbuf1, queuename(e, 'x')); 1658ee4b0922Seric (void) strcpy(xfbuf2, queuename(ee, 'x')); 1659ee4b0922Seric if (link(xfbuf1, xfbuf2) < 0) 1660ee4b0922Seric { 1661ee4b0922Seric syserr("sendall: link(%s, %s)", 1662ee4b0922Seric xfbuf1, xfbuf2); 1663ee4b0922Seric } 1664ee4b0922Seric } 16659836bea2Seric } 16669836bea2Seric } 16679836bea2Seric 16689836bea2Seric if (owner != NULL) 1669ee4b0922Seric { 1670*579ef0ddSeric setsender(owner, e, NULL, TRUE); 1671ee4b0922Seric if (tTd(13, 5)) 1672ee4b0922Seric { 1673ee4b0922Seric printf("sendall(owner): QDONTSEND "); 1674ee4b0922Seric printaddr(&e->e_from, FALSE); 1675ee4b0922Seric } 1676ee4b0922Seric e->e_from.q_flags |= QDONTSEND; 1677ee4b0922Seric } 16789836bea2Seric 1679588cad61Seric # ifdef QUEUE 1680b254bcb6Seric if ((mode == SM_QUEUE || mode == SM_FORK || 1681b254bcb6Seric (mode != SM_VERIFY && SuperSafe)) && 1682b254bcb6Seric !bitset(EF_INQUEUE, e->e_flags)) 1683e020b127Seric queueup(e, TRUE, mode == SM_QUEUE); 16846c2c3107Seric #endif /* QUEUE */ 1685276723a8Seric 16869836bea2Seric if (splitenv != NULL) 16879836bea2Seric { 1688ee4b0922Seric register ENVELOPE *ee; 1689ee4b0922Seric 16909836bea2Seric if (tTd(13, 1)) 16919836bea2Seric { 16929836bea2Seric printf("\nsendall: Split queue; remaining queue:\n"); 16939836bea2Seric printaddr(e->e_sendqueue, TRUE); 16949836bea2Seric } 16959836bea2Seric 1696ee4b0922Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 16979836bea2Seric { 1698ee4b0922Seric CurEnv = ee; 1699ee4b0922Seric sendenvelope(ee, mode); 17009836bea2Seric } 17019836bea2Seric 17029836bea2Seric CurEnv = e; 17039836bea2Seric } 1704ee4b0922Seric sendenvelope(e, mode); 1705ee4b0922Seric 1706ee4b0922Seric for (; splitenv != NULL; splitenv = splitenv->e_sibling) 1707ee4b0922Seric dropenvelope(splitenv); 1708ee4b0922Seric } 1709ee4b0922Seric 1710ee4b0922Seric sendenvelope(e, mode) 1711ee4b0922Seric register ENVELOPE *e; 1712ee4b0922Seric char mode; 1713ee4b0922Seric { 1714ee4b0922Seric bool oldverbose; 1715ee4b0922Seric int pid; 1716ee4b0922Seric register ADDRESS *q; 17175ff3c5eaSeric #ifdef LOCKF 17185ff3c5eaSeric struct flock lfd; 17195ff3c5eaSeric #endif 17209836bea2Seric 1721276723a8Seric oldverbose = Verbose; 1722276723a8Seric switch (mode) 1723276723a8Seric { 1724276723a8Seric case SM_VERIFY: 1725276723a8Seric Verbose = TRUE; 1726276723a8Seric break; 1727276723a8Seric 1728276723a8Seric case SM_QUEUE: 1729c7f5410dSeric queueonly: 1730b254bcb6Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 1731276723a8Seric return; 1732276723a8Seric 1733276723a8Seric case SM_FORK: 17349a6a5f55Seric if (e->e_xfp != NULL) 17359a6a5f55Seric (void) fflush(e->e_xfp); 1736c7f5410dSeric 1737c7f5410dSeric # ifdef LOCKF 1738c7f5410dSeric /* 1739c7f5410dSeric ** Since lockf has the interesting semantic that the 17401c265a00Seric ** lock is lost when we fork, we have to risk losing 17411c265a00Seric ** the lock here by closing before the fork, and then 17421c265a00Seric ** trying to get it back in the child. 1743c7f5410dSeric */ 1744c7f5410dSeric 1745e020b127Seric if (e->e_lockfp != NULL) 1746c7f5410dSeric { 1747ee4b0922Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 1748e020b127Seric e->e_lockfp = NULL; 1749c7f5410dSeric } 1750c7f5410dSeric # endif /* LOCKF */ 1751c7f5410dSeric 1752276723a8Seric pid = fork(); 1753276723a8Seric if (pid < 0) 1754276723a8Seric { 1755c7f5410dSeric goto queueonly; 1756276723a8Seric } 1757276723a8Seric else if (pid > 0) 1758a6fce3d8Seric { 1759a6fce3d8Seric /* be sure we leave the temp files to our child */ 1760b254bcb6Seric e->e_id = e->e_df = NULL; 1761c7f5410dSeric # ifndef LOCKF 1762e020b127Seric if (e->e_lockfp != NULL) 176375f1ade9Seric { 1764ee4b0922Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 176575f1ade9Seric e->e_lockfp = NULL; 176675f1ade9Seric } 1767c7f5410dSeric # endif 176875f1ade9Seric 176975f1ade9Seric /* close any random open files in the envelope */ 177075f1ade9Seric if (e->e_dfp != NULL) 177175f1ade9Seric { 1772ee4b0922Seric (void) xfclose(e->e_dfp, "sendenvelope", "dfp"); 177375f1ade9Seric e->e_dfp = NULL; 177475f1ade9Seric } 177575f1ade9Seric if (e->e_xfp != NULL) 177675f1ade9Seric { 1777ee4b0922Seric (void) xfclose(e->e_xfp, "sendenvelope", "xfp"); 177875f1ade9Seric e->e_xfp = NULL; 177975f1ade9Seric } 1780276723a8Seric return; 1781a6fce3d8Seric } 1782276723a8Seric 1783276723a8Seric /* double fork to avoid zombies */ 1784276723a8Seric if (fork() > 0) 1785276723a8Seric exit(EX_OK); 1786276723a8Seric 1787a6fce3d8Seric /* be sure we are immune from the terminal */ 17888dadacffSeric disconnect(FALSE, e); 1789a6fce3d8Seric 1790e6720d51Seric # ifdef LOCKF 1791e6720d51Seric /* 1792c7f5410dSeric ** Now try to get our lock back. 1793e6720d51Seric */ 1794e6720d51Seric 17951c265a00Seric lfd.l_type = F_WRLCK; 17961c265a00Seric lfd.l_whence = lfd.l_start = lfd.l_len = 0; 1797e020b127Seric e->e_lockfp = fopen(queuename(e, 'q'), "r+"); 1798e020b127Seric if (e->e_lockfp == NULL || 17991c265a00Seric fcntl(fileno(e->e_lockfp), F_SETLK, &lfd) < 0) 1800e6720d51Seric { 1801e6720d51Seric /* oops.... lost it */ 1802e6720d51Seric # ifdef LOG 18032f624c86Seric if (LogLevel > 29) 1804c7f5410dSeric syslog(LOG_NOTICE, "%s: lost lock: %m", 1805b31e7f2bSeric e->e_id); 1806e6720d51Seric # endif /* LOG */ 1807e6720d51Seric exit(EX_OK); 1808e6720d51Seric } 1809e6720d51Seric # endif /* LOCKF */ 1810e6720d51Seric 18111caa9a59Seric /* 18121caa9a59Seric ** Close any cached connections. 18131caa9a59Seric ** 18141caa9a59Seric ** We don't send the QUIT protocol because the parent 18151caa9a59Seric ** still knows about the connection. 18161caa9a59Seric ** 18171caa9a59Seric ** This should only happen when delivering an error 18181caa9a59Seric ** message. 18191caa9a59Seric */ 18201caa9a59Seric 18211caa9a59Seric mci_flush(FALSE, NULL); 18221caa9a59Seric 1823276723a8Seric break; 1824276723a8Seric } 1825276723a8Seric 1826276723a8Seric /* 18270c52a0b3Seric ** Run through the list and send everything. 18280c52a0b3Seric */ 18290c52a0b3Seric 1830655518ecSeric e->e_nsent = 0; 18310c52a0b3Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 1832ea4dc939Seric { 1833276723a8Seric if (mode == SM_VERIFY) 1834ea4dc939Seric { 1835a6fce3d8Seric e->e_to = q->q_paddr; 1836e77e673fSeric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 183708b25121Seric message("deliverable"); 1838ea4dc939Seric } 1839ee4b0922Seric else if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 1840dde5acadSeric { 1841de1179f5Seric # ifdef QUEUE 1842dde5acadSeric /* 1843dde5acadSeric ** Checkpoint the send list every few addresses 1844dde5acadSeric */ 1845dde5acadSeric 1846655518ecSeric if (e->e_nsent >= CheckpointInterval) 1847dde5acadSeric { 1848e020b127Seric queueup(e, TRUE, FALSE); 1849655518ecSeric e->e_nsent = 0; 1850dde5acadSeric } 1851de1179f5Seric # endif /* QUEUE */ 1852655518ecSeric (void) deliver(e, q); 1853dde5acadSeric } 1854ea4dc939Seric } 185514a8ed7aSeric Verbose = oldverbose; 18560c52a0b3Seric 18570c52a0b3Seric /* 18580c52a0b3Seric ** Now run through and check for errors. 18590c52a0b3Seric */ 18600c52a0b3Seric 1861e020b127Seric if (mode == SM_VERIFY) 1862ee4b0922Seric { 18630c52a0b3Seric return; 1864ee4b0922Seric } 18650c52a0b3Seric 18660c52a0b3Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 18670c52a0b3Seric { 1868df864a8fSeric if (tTd(13, 3)) 1869df864a8fSeric { 1870df864a8fSeric printf("Checking "); 1871df864a8fSeric printaddr(q, FALSE); 1872df864a8fSeric } 1873df864a8fSeric 1874b254bcb6Seric /* only send errors if the message failed */ 1875b254bcb6Seric if (!bitset(QBADADDR, q->q_flags)) 1876b254bcb6Seric continue; 18770c52a0b3Seric 1878ee4b0922Seric e->e_flags |= EF_FATALERRS; 1879ee4b0922Seric 1880b8043ddbSeric if (q->q_owner == NULL && strcmp(e->e_from.q_paddr, "<>") != 0) 18819836bea2Seric (void) sendtolist(e->e_from.q_paddr, NULL, 18821caa9a59Seric &e->e_errorqueue, e); 18830c52a0b3Seric } 1884276723a8Seric 1885276723a8Seric if (mode == SM_FORK) 1886276723a8Seric finis(); 18870c52a0b3Seric } 1888e103b48fSeric /* 1889e103b48fSeric ** HOSTSIGNATURE -- return the "signature" for a host. 1890e103b48fSeric ** 1891e103b48fSeric ** The signature describes how we are going to send this -- it 1892e103b48fSeric ** can be just the hostname (for non-Internet hosts) or can be 1893e103b48fSeric ** an ordered list of MX hosts. 1894e103b48fSeric ** 1895e103b48fSeric ** Parameters: 1896e103b48fSeric ** m -- the mailer describing this host. 1897e103b48fSeric ** host -- the host name. 1898e103b48fSeric ** e -- the current envelope. 1899e103b48fSeric ** 1900e103b48fSeric ** Returns: 1901e103b48fSeric ** The signature for this host. 1902e103b48fSeric ** 1903e103b48fSeric ** Side Effects: 1904e103b48fSeric ** Can tweak the symbol table. 1905e103b48fSeric */ 1906e103b48fSeric 1907e103b48fSeric char * 1908e103b48fSeric hostsignature(m, host, e) 1909e103b48fSeric register MAILER *m; 1910e103b48fSeric char *host; 1911e103b48fSeric ENVELOPE *e; 1912e103b48fSeric { 1913e103b48fSeric register char *p; 1914e103b48fSeric register STAB *s; 1915e103b48fSeric int i; 1916e103b48fSeric int len; 1917e103b48fSeric #ifdef NAMED_BIND 1918e103b48fSeric int nmx; 1919e103b48fSeric auto int rcode; 1920e103b48fSeric char *mxhosts[MAXMXHOSTS + 1]; 1921e103b48fSeric static char myhostbuf[MAXNAME]; 1922e103b48fSeric #endif 1923e103b48fSeric 1924e103b48fSeric /* 1925e103b48fSeric ** Check to see if this uses IPC -- if not, it can't have MX records. 1926e103b48fSeric */ 1927e103b48fSeric 1928e103b48fSeric p = m->m_mailer; 1929e103b48fSeric if (strcmp(p, "[IPC]") != 0 && strcmp(p, "[TCP]") != 0) 1930e103b48fSeric { 1931e103b48fSeric /* just an ordinary mailer */ 1932e103b48fSeric return host; 1933e103b48fSeric } 1934e103b48fSeric 1935e103b48fSeric /* 1936e103b48fSeric ** If it is a numeric address, just return it. 1937e103b48fSeric */ 1938e103b48fSeric 1939e103b48fSeric if (host[0] == '[') 1940e103b48fSeric return host; 1941e103b48fSeric 1942e103b48fSeric /* 1943e103b48fSeric ** Look it up in the symbol table. 1944e103b48fSeric */ 1945e103b48fSeric 1946e103b48fSeric s = stab(host, ST_HOSTSIG, ST_ENTER); 1947e103b48fSeric if (s->s_hostsig != NULL) 1948e103b48fSeric return s->s_hostsig; 1949e103b48fSeric 1950e103b48fSeric /* 1951e103b48fSeric ** Not already there -- create a signature. 1952e103b48fSeric */ 1953e103b48fSeric 1954e103b48fSeric #ifdef NAMED_BIND 1955e103b48fSeric if (myhostbuf[0] == '\0') 19562bc47524Seric expand("\201j", myhostbuf, &myhostbuf[sizeof myhostbuf - 1], e); 1957e103b48fSeric 1958e103b48fSeric nmx = getmxrr(host, mxhosts, myhostbuf, &rcode); 19597d55540cSeric 1960e103b48fSeric if (nmx <= 0) 1961e103b48fSeric { 1962e103b48fSeric register MCI *mci; 1963e103b48fSeric extern int errno; 1964e103b48fSeric extern MCI *mci_get(); 1965e103b48fSeric 1966e103b48fSeric /* update the connection info for this host */ 1967e103b48fSeric mci = mci_get(host, m); 1968e103b48fSeric mci->mci_exitstat = rcode; 1969e103b48fSeric mci->mci_errno = errno; 1970e103b48fSeric 1971e103b48fSeric /* and return the original host name as the signature */ 1972e103b48fSeric s->s_hostsig = host; 1973e103b48fSeric return host; 1974e103b48fSeric } 1975e103b48fSeric 1976e103b48fSeric len = 0; 1977e103b48fSeric for (i = 0; i < nmx; i++) 1978e103b48fSeric { 1979e103b48fSeric len += strlen(mxhosts[i]) + 1; 1980e103b48fSeric } 1981e103b48fSeric s->s_hostsig = p = xalloc(len); 1982e103b48fSeric for (i = 0; i < nmx; i++) 1983e103b48fSeric { 1984e103b48fSeric if (i != 0) 1985e103b48fSeric *p++ = ':'; 1986e103b48fSeric strcpy(p, mxhosts[i]); 1987e103b48fSeric p += strlen(p); 1988e103b48fSeric } 1989e103b48fSeric makelower(s->s_hostsig); 1990e103b48fSeric #else 1991e103b48fSeric /* not using BIND -- the signature is just the host name */ 1992e103b48fSeric s->s_hostsig = host; 1993e103b48fSeric #endif 1994e103b48fSeric if (tTd(17, 1)) 1995e103b48fSeric printf("hostsignature(%s) = %s\n", host, s->s_hostsig); 1996e103b48fSeric return s->s_hostsig; 1997e103b48fSeric } 1998