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*e2f2f828Seric static char sccsid[] = "@(#)deliver.c 6.53 (Berkeley) 03/19/93"; 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]; 63579ef0ddSeric 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 10119c47125Seric if (NoConnect && !bitset(EF_QUEUERUN, e->e_flags) && 10219c47125Seric bitnset(M_EXPENSIVE, m->m_flags) && !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 { 53319c47125Seric char buf[MAXLINE]; 53419c47125Seric extern char *pintvl(); 53519c47125Seric 53683b7ddc9Seric if (rcode == EX_OK) 53783b7ddc9Seric return; 538ef137175Sbostic else if (rcode != EX_TEMPFAIL && rcode != EX_IOERR && rcode != EX_OSERR) 53983b7ddc9Seric q->q_flags |= QBADADDR; 54019c47125Seric else if (curtime() > e->e_ctime + TimeOuts.to_q_return) 54183b7ddc9Seric { 54283b7ddc9Seric if (!bitset(EF_TIMEOUT, e->e_flags)) 543198d9be0Seric { 544198d9be0Seric (void) sprintf(buf, "Cannot send message for %s", 54519c47125Seric pintvl(TimeOuts.to_q_return, 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 55619c47125Seric { 55783b7ddc9Seric q->q_flags |= QQUEUEUP; 55819c47125Seric if (TimeOuts.to_q_warning > 0 && 55919c47125Seric curtime() > e->e_ctime + TimeOuts.to_q_warning) 56019c47125Seric { 56119c47125Seric if (!bitset(EF_WARNING, e->e_flags) && 56219c47125Seric e->e_class >= 0) 56319c47125Seric { 56419c47125Seric (void) sprintf(buf, 56519c47125Seric "warning: cannot send message for %s", 56619c47125Seric pintvl(TimeOuts.to_q_warning, FALSE)); 56719c47125Seric if (e->e_message != NULL) 56819c47125Seric free(e->e_message); 56919c47125Seric e->e_message = newstr(buf); 57019c47125Seric message(buf); 57119c47125Seric e->e_flags |= EF_WARNING|EF_TIMEOUT; 57219c47125Seric } 57319c47125Seric fprintf(e->e_xfp, 57419c47125Seric "%s... Warning: message still undelivered after %s\n", 57519c47125Seric q->q_paddr, pintvl(TimeOuts.to_q_warning, FALSE)); 57619c47125Seric fprintf(e->e_xfp, "Will keep trying until message is %s old\n", 57719c47125Seric pintvl(TimeOuts.to_q_return, FALSE)); 57819c47125Seric } 57919c47125Seric } 58083b7ddc9Seric } 58183b7ddc9Seric /* 58232d19d43Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 58332d19d43Seric ** 58432d19d43Seric ** This MUST be a macro, since after a vfork we are running 58532d19d43Seric ** two processes on the same stack!!! 58632d19d43Seric ** 58732d19d43Seric ** Parameters: 58832d19d43Seric ** none. 58932d19d43Seric ** 59032d19d43Seric ** Returns: 59132d19d43Seric ** From a macro??? You've got to be kidding! 59232d19d43Seric ** 59332d19d43Seric ** Side Effects: 59432d19d43Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 59532d19d43Seric ** pid of child in parent, zero in child. 59632d19d43Seric ** -1 on unrecoverable error. 59732d19d43Seric ** 59832d19d43Seric ** Notes: 59932d19d43Seric ** I'm awfully sorry this looks so awful. That's 60032d19d43Seric ** vfork for you..... 60132d19d43Seric */ 60232d19d43Seric 60332d19d43Seric # define NFORKTRIES 5 60484f7cd1bSeric 60584f7cd1bSeric # ifndef FORK 60684f7cd1bSeric # define FORK fork 60784f7cd1bSeric # endif 60832d19d43Seric 60932d19d43Seric # define DOFORK(fORKfN) \ 61032d19d43Seric {\ 61132d19d43Seric register int i;\ 61232d19d43Seric \ 61311799049Seric for (i = NFORKTRIES; --i >= 0; )\ 61432d19d43Seric {\ 61532d19d43Seric pid = fORKfN();\ 61632d19d43Seric if (pid >= 0)\ 61732d19d43Seric break;\ 61811799049Seric if (i > 0)\ 6196c4635f6Seric sleep((unsigned) NFORKTRIES - i);\ 62032d19d43Seric }\ 62132d19d43Seric } 62232d19d43Seric /* 6232ed72599Seric ** DOFORK -- simple fork interface to DOFORK. 6242ed72599Seric ** 6252ed72599Seric ** Parameters: 6262ed72599Seric ** none. 6272ed72599Seric ** 6282ed72599Seric ** Returns: 6292ed72599Seric ** pid of child in parent. 6302ed72599Seric ** zero in child. 6312ed72599Seric ** -1 on error. 6322ed72599Seric ** 6332ed72599Seric ** Side Effects: 6342ed72599Seric ** returns twice, once in parent and once in child. 6352ed72599Seric */ 6362ed72599Seric 6372ed72599Seric dofork() 6382ed72599Seric { 6392ed72599Seric register int pid; 6402ed72599Seric 6412ed72599Seric DOFORK(fork); 6422ed72599Seric return (pid); 6432ed72599Seric } 6442ed72599Seric /* 645c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 646c579ef51Seric ** 647c579ef51Seric ** We should never get fatal errors (e.g., segmentation 648c579ef51Seric ** violation), so we report those specially. For other 649c579ef51Seric ** errors, we choose a status message (into statmsg), 650c579ef51Seric ** and if it represents an error, we print it. 651c579ef51Seric ** 652c579ef51Seric ** Parameters: 653c579ef51Seric ** pid -- pid of mailer. 654c579ef51Seric ** name -- name of mailer (for error messages). 655c579ef51Seric ** 656c579ef51Seric ** Returns: 657c579ef51Seric ** exit code of mailer. 658c579ef51Seric ** 659c579ef51Seric ** Side Effects: 660c579ef51Seric ** none. 661c579ef51Seric */ 662c579ef51Seric 66375889e88Seric endmailer(mci, name) 664b31e7f2bSeric register MCI *mci; 665c579ef51Seric char *name; 666c579ef51Seric { 667588cad61Seric int st; 668c579ef51Seric 66975889e88Seric /* close any connections */ 67075889e88Seric if (mci->mci_in != NULL) 671ee4b0922Seric (void) xfclose(mci->mci_in, name, "mci_in"); 67275889e88Seric if (mci->mci_out != NULL) 673ee4b0922Seric (void) xfclose(mci->mci_out, name, "mci_out"); 67475889e88Seric mci->mci_in = mci->mci_out = NULL; 67575889e88Seric mci->mci_state = MCIS_CLOSED; 67675889e88Seric 67733db8731Seric /* in the IPC case there is nothing to wait for */ 67875889e88Seric if (mci->mci_pid == 0) 67933db8731Seric return (EX_OK); 68033db8731Seric 68133db8731Seric /* wait for the mailer process to die and collect status */ 68275889e88Seric st = waitfor(mci->mci_pid); 683588cad61Seric if (st == -1) 68478de67c1Seric { 685588cad61Seric syserr("endmailer %s: wait", name); 686588cad61Seric return (EX_SOFTWARE); 687c579ef51Seric } 68833db8731Seric 68933db8731Seric /* see if it died a horrid death */ 690c579ef51Seric if ((st & 0377) != 0) 691c579ef51Seric { 6925f73204aSeric syserr("mailer %s died with signal %o", name, st); 6935f73204aSeric ExitStat = EX_TEMPFAIL; 6945f73204aSeric return (EX_TEMPFAIL); 695c579ef51Seric } 69633db8731Seric 69733db8731Seric /* normal death -- return status */ 698588cad61Seric st = (st >> 8) & 0377; 699588cad61Seric return (st); 700c579ef51Seric } 701c579ef51Seric /* 702c579ef51Seric ** OPENMAILER -- open connection to mailer. 703c579ef51Seric ** 704c579ef51Seric ** Parameters: 705c579ef51Seric ** m -- mailer descriptor. 706c579ef51Seric ** pvp -- parameter vector to pass to mailer. 707c579ef51Seric ** ctladdr -- controlling address for user. 708c579ef51Seric ** clever -- create a full duplex connection. 709c579ef51Seric ** 710c579ef51Seric ** Returns: 71175889e88Seric ** The mail connection info struct for this connection. 71275889e88Seric ** NULL on failure. 713c579ef51Seric ** 714c579ef51Seric ** Side Effects: 715c579ef51Seric ** creates a mailer in a subprocess. 716c579ef51Seric */ 717c579ef51Seric 718b31e7f2bSeric MCI * 719b31e7f2bSeric openmailer(m, pvp, ctladdr, clever, e) 720588cad61Seric MAILER *m; 721c579ef51Seric char **pvp; 722c579ef51Seric ADDRESS *ctladdr; 723c579ef51Seric bool clever; 724b31e7f2bSeric ENVELOPE *e; 725c579ef51Seric { 7265dfc646bSeric int pid; 727b31e7f2bSeric register MCI *mci; 728f8952a83Seric int mpvect[2]; 729c579ef51Seric int rpvect[2]; 7305dfc646bSeric extern FILE *fdopen(); 7315dfc646bSeric 7326ef48975Seric if (tTd(11, 1)) 7335dfc646bSeric { 7348c57e552Seric printf("openmailer:"); 7355dfc646bSeric printav(pvp); 7365dfc646bSeric } 73735490626Seric errno = 0; 7385dfc646bSeric 739ef66a9d0Seric CurHostName = m->m_mailer; 740ef66a9d0Seric 74133db8731Seric /* 74233db8731Seric ** Deal with the special case of mail handled through an IPC 74333db8731Seric ** connection. 74433db8731Seric ** In this case we don't actually fork. We must be 74533db8731Seric ** running SMTP for this to work. We will return a 74633db8731Seric ** zero pid to indicate that we are running IPC. 747e7c1bd78Seric ** We also handle a debug version that just talks to stdin/out. 74833db8731Seric */ 74933db8731Seric 750e7c1bd78Seric /* check for Local Person Communication -- not for mortals!!! */ 751e7c1bd78Seric if (strcmp(m->m_mailer, "[LPC]") == 0) 752e7c1bd78Seric { 753b31e7f2bSeric mci = (MCI *) xalloc(sizeof *mci); 7542a087e90Seric bzero((char *) mci, sizeof *mci); 75575889e88Seric mci->mci_in = stdin; 75675889e88Seric mci->mci_out = stdout; 757b31e7f2bSeric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 75815d084d5Seric mci->mci_mailer = m; 759e7c1bd78Seric } 760b31e7f2bSeric else if (strcmp(m->m_mailer, "[IPC]") == 0 || 761914346b1Seric strcmp(m->m_mailer, "[TCP]") == 0) 76233db8731Seric { 76384f7cd1bSeric #ifdef DAEMON 764e103b48fSeric register int i; 7651277f9a8Seric register u_short port; 766e103b48fSeric char *curhost; 767b31e7f2bSeric extern MCI *mci_get(); 768e103b48fSeric extern char *hostsignature(); 76933db8731Seric 770ef66a9d0Seric CurHostName = pvp[1]; 771e103b48fSeric curhost = hostsignature(m, pvp[1], e); 772b31e7f2bSeric 77378bfb85bSeric if (curhost == NULL || curhost[0] == '\0') 77478bfb85bSeric { 77578bfb85bSeric syserr("null signature"); 77678bfb85bSeric return NULL; 77778bfb85bSeric } 77878bfb85bSeric 77933db8731Seric if (!clever) 78078bfb85bSeric { 78108b25121Seric syserr("554 non-clever IPC"); 78278bfb85bSeric return NULL; 78378bfb85bSeric } 78493b6e3cfSeric if (pvp[2] != NULL) 7851277f9a8Seric port = atoi(pvp[2]); 78693b6e3cfSeric else 7871277f9a8Seric port = 0; 788e103b48fSeric while (*curhost != '\0') 789ebc61751Sbloom { 790e103b48fSeric register char *p; 7917d55540cSeric static char hostbuf[MAXNAME]; 792e103b48fSeric 793e103b48fSeric /* pull the next host from the signature */ 794e103b48fSeric p = strchr(curhost, ':'); 795e103b48fSeric if (p == NULL) 796e103b48fSeric p = &curhost[strlen(curhost)]; 797e103b48fSeric strncpy(hostbuf, curhost, p - curhost); 798e103b48fSeric hostbuf[p - curhost] = '\0'; 799e103b48fSeric if (*p != '\0') 800e103b48fSeric p++; 801e103b48fSeric curhost = p; 802e103b48fSeric 80345a8316eSeric /* see if we already know that this host is fried */ 804e103b48fSeric CurHostName = hostbuf; 805e103b48fSeric mci = mci_get(hostbuf, m); 806b31e7f2bSeric if (mci->mci_state != MCIS_CLOSED) 8071fa7c2ebSeric { 8081fa7c2ebSeric if (tTd(11, 1)) 8091fa7c2ebSeric { 8101fa7c2ebSeric printf("openmailer: "); 8111fa7c2ebSeric mci_dump(mci); 8121fa7c2ebSeric } 81367088a9dSeric CurHostName = mci->mci_host; 81475889e88Seric return mci; 8151fa7c2ebSeric } 81615d084d5Seric mci->mci_mailer = m; 817b31e7f2bSeric if (mci->mci_exitstat != EX_OK) 818b31e7f2bSeric continue; 819b31e7f2bSeric 82075889e88Seric /* try the connection */ 821e103b48fSeric setproctitle("%s %s: %s", e->e_id, hostbuf, "user open"); 82208b25121Seric message("Connecting to %s (%s)...", 823e103b48fSeric hostbuf, m->m_name); 824e103b48fSeric i = makeconnection(hostbuf, port, mci, 825914346b1Seric bitnset(M_SECURE_PORT, m->m_flags)); 82675889e88Seric mci->mci_exitstat = i; 82775889e88Seric mci->mci_errno = errno; 82875889e88Seric if (i == EX_OK) 829b31e7f2bSeric { 830b31e7f2bSeric mci->mci_state = MCIS_OPENING; 831b31e7f2bSeric mci_cache(mci); 832b31e7f2bSeric break; 833b31e7f2bSeric } 834b31e7f2bSeric else if (tTd(11, 1)) 835b31e7f2bSeric printf("openmailer: makeconnection => stat=%d, errno=%d\n", 836b31e7f2bSeric i, errno); 837b31e7f2bSeric 83875889e88Seric 8395f73204aSeric /* enter status of this host */ 84075889e88Seric setstat(i); 841ed854c7bSeric } 8422a087e90Seric mci->mci_pid = 0; 843b31e7f2bSeric #else /* no DAEMON */ 84408b25121Seric syserr("554 openmailer: no IPC"); 8451fa7c2ebSeric if (tTd(11, 1)) 8461fa7c2ebSeric printf("openmailer: NULL\n"); 84775889e88Seric return NULL; 848b31e7f2bSeric #endif /* DAEMON */ 849588cad61Seric } 850b31e7f2bSeric else 851b31e7f2bSeric { 8526328bdf7Seric /* create a pipe to shove the mail through */ 853f8952a83Seric if (pipe(mpvect) < 0) 85425a99e2eSeric { 855588cad61Seric syserr("openmailer: pipe (to mailer)"); 8561fa7c2ebSeric if (tTd(11, 1)) 8571fa7c2ebSeric printf("openmailer: NULL\n"); 85875889e88Seric return NULL; 85925a99e2eSeric } 860c579ef51Seric 861c579ef51Seric /* if this mailer speaks smtp, create a return pipe */ 862c579ef51Seric if (clever && pipe(rpvect) < 0) 863c579ef51Seric { 864588cad61Seric syserr("openmailer: pipe (from mailer)"); 865c579ef51Seric (void) close(mpvect[0]); 866c579ef51Seric (void) close(mpvect[1]); 8671fa7c2ebSeric if (tTd(11, 1)) 8681fa7c2ebSeric printf("openmailer: NULL\n"); 86975889e88Seric return NULL; 870c579ef51Seric } 871c579ef51Seric 87233db8731Seric /* 87333db8731Seric ** Actually fork the mailer process. 87433db8731Seric ** DOFORK is clever about retrying. 8756984bfddSeric ** 8766984bfddSeric ** Dispose of SIGCHLD signal catchers that may be laying 8776984bfddSeric ** around so that endmail will get it. 87833db8731Seric */ 87933db8731Seric 880b31e7f2bSeric if (e->e_xfp != NULL) 881b31e7f2bSeric (void) fflush(e->e_xfp); /* for debugging */ 882588cad61Seric (void) fflush(stdout); 8836984bfddSeric # ifdef SIGCHLD 8846984bfddSeric (void) signal(SIGCHLD, SIG_DFL); 8856c2c3107Seric # endif /* SIGCHLD */ 88684f7cd1bSeric DOFORK(FORK); 887f129ec7dSeric /* pid is set by DOFORK */ 88825a99e2eSeric if (pid < 0) 88925a99e2eSeric { 89033db8731Seric /* failure */ 891588cad61Seric syserr("openmailer: cannot fork"); 892f8952a83Seric (void) close(mpvect[0]); 893f8952a83Seric (void) close(mpvect[1]); 894c579ef51Seric if (clever) 895c579ef51Seric { 896c579ef51Seric (void) close(rpvect[0]); 897c579ef51Seric (void) close(rpvect[1]); 898c579ef51Seric } 8991fa7c2ebSeric if (tTd(11, 1)) 9001fa7c2ebSeric printf("openmailer: NULL\n"); 90175889e88Seric return NULL; 90225a99e2eSeric } 90325a99e2eSeric else if (pid == 0) 90425a99e2eSeric { 90513088b9fSeric int i; 906dafbc479Seric int saveerrno; 90780c5307eSeric char **ep; 90880c5307eSeric char *env[MAXUSERENVIRON]; 90980c5307eSeric extern char **environ; 9105f73204aSeric extern int DtableSize; 91113088b9fSeric 91225a99e2eSeric /* child -- set up input & exec mailer */ 91303ab8e55Seric /* make diagnostic output be standard output */ 9148f0e7860Seric (void) signal(SIGINT, SIG_IGN); 9158f0e7860Seric (void) signal(SIGHUP, SIG_IGN); 9160984da9fSeric (void) signal(SIGTERM, SIG_DFL); 917f8952a83Seric 9181caa9a59Seric /* close any other cached connections */ 9191caa9a59Seric mci_flush(FALSE, mci); 9201caa9a59Seric 921b31e7f2bSeric /* arrange to filter std & diag output of command */ 922c579ef51Seric if (clever) 923c579ef51Seric { 924c579ef51Seric (void) close(rpvect[0]); 92565886f3dSeric (void) dup2(rpvect[1], STDOUT_FILENO); 926c579ef51Seric (void) close(rpvect[1]); 927c579ef51Seric } 928276723a8Seric else if (OpMode == MD_SMTP || HoldErrs) 929f8952a83Seric { 930588cad61Seric /* put mailer output in transcript */ 93165886f3dSeric (void) dup2(fileno(e->e_xfp), STDOUT_FILENO); 932f8952a83Seric } 93365886f3dSeric (void) dup2(STDOUT_FILENO, STDERR_FILENO); 934f8952a83Seric 935f8952a83Seric /* arrange to get standard input */ 936f8952a83Seric (void) close(mpvect[1]); 93765886f3dSeric if (dup2(mpvect[0], STDIN_FILENO) < 0) 93825a99e2eSeric { 93925a99e2eSeric syserr("Cannot dup to zero!"); 940a590b978Seric _exit(EX_OSERR); 94125a99e2eSeric } 942f8952a83Seric (void) close(mpvect[0]); 94357fc6f17Seric if (!bitnset(M_RESTR, m->m_flags)) 9440984da9fSeric { 94553e3fa05Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 946e36b99e2Seric { 947e36b99e2Seric (void) setgid(DefGid); 948898a126bSbostic (void) initgroups(DefUser, DefGid); 949e36b99e2Seric (void) setuid(DefUid); 950e36b99e2Seric } 951e36b99e2Seric else 95269f29479Seric { 953e36b99e2Seric (void) setgid(ctladdr->q_gid); 954898a126bSbostic (void) initgroups(ctladdr->q_ruser? 955898a126bSbostic ctladdr->q_ruser: ctladdr->q_user, 956898a126bSbostic ctladdr->q_gid); 957e36b99e2Seric (void) setuid(ctladdr->q_uid); 95869f29479Seric } 9590984da9fSeric } 960588cad61Seric 96113088b9fSeric /* arrange for all the files to be closed */ 962b31e7f2bSeric for (i = 3; i < DtableSize; i++) 963b31e7f2bSeric { 964fccb3f7aSbostic register int j; 965fccb3f7aSbostic if ((j = fcntl(i, F_GETFD, 0)) != -1) 966fccb3f7aSbostic (void)fcntl(i, F_SETFD, j|1); 967fccb3f7aSbostic } 96833db8731Seric 96980c5307eSeric /* set up the mailer environment */ 97080c5307eSeric i = 0; 97180c5307eSeric env[i++] = "AGENT=sendmail"; 97280c5307eSeric for (ep = environ; *ep != NULL; ep++) 97380c5307eSeric { 97480c5307eSeric if (strncmp(*ep, "TZ=", 3) == 0) 97580c5307eSeric env[i++] = *ep; 97680c5307eSeric } 97780c5307eSeric env[i++] = NULL; 97880c5307eSeric 97933db8731Seric /* try to execute the mailer */ 980d7a0480eSeric execve(m->m_mailer, pvp, env); 981dafbc479Seric saveerrno = errno; 98213088b9fSeric syserr("Cannot exec %s", m->m_mailer); 98395b76e4bSeric if (m == LocalMailer) 98455f33c03Seric _exit(EX_TEMPFAIL); 985e2de2524Seric if (transienterror(saveerrno)) 98695b76e4bSeric _exit(EX_TEMPFAIL); 987a590b978Seric _exit(EX_UNAVAILABLE); 98825a99e2eSeric } 98925a99e2eSeric 990f8952a83Seric /* 991c579ef51Seric ** Set up return value. 992f8952a83Seric */ 993f8952a83Seric 994b31e7f2bSeric mci = (MCI *) xalloc(sizeof *mci); 9952a087e90Seric bzero((char *) mci, sizeof *mci); 99615d084d5Seric mci->mci_mailer = m; 997b31e7f2bSeric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 9982a087e90Seric mci->mci_pid = pid; 999f8952a83Seric (void) close(mpvect[0]); 100075889e88Seric mci->mci_out = fdopen(mpvect[1], "w"); 1001c579ef51Seric if (clever) 100225a99e2eSeric { 1003c579ef51Seric (void) close(rpvect[1]); 100475889e88Seric mci->mci_in = fdopen(rpvect[0], "r"); 100575889e88Seric } 100675889e88Seric else 100775889e88Seric { 100875889e88Seric mci->mci_flags |= MCIF_TEMP; 100975889e88Seric mci->mci_in = NULL; 101075889e88Seric } 1011b31e7f2bSeric } 1012b31e7f2bSeric 1013b31e7f2bSeric /* 1014b31e7f2bSeric ** If we are in SMTP opening state, send initial protocol. 1015b31e7f2bSeric */ 1016b31e7f2bSeric 1017b31e7f2bSeric if (clever && mci->mci_state != MCIS_CLOSED) 1018b31e7f2bSeric { 1019b31e7f2bSeric smtpinit(m, mci, e); 1020b31e7f2bSeric } 10211fa7c2ebSeric if (tTd(11, 1)) 10221fa7c2ebSeric { 10231fa7c2ebSeric printf("openmailer: "); 10241fa7c2ebSeric mci_dump(mci); 10251fa7c2ebSeric } 1026c579ef51Seric 102775889e88Seric return mci; 102825a99e2eSeric } 102925a99e2eSeric /* 103025a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 103125a99e2eSeric ** 103225a99e2eSeric ** Parameters: 103325a99e2eSeric ** stat -- the status code from the mailer (high byte 103425a99e2eSeric ** only; core dumps must have been taken care of 103525a99e2eSeric ** already). 103681161401Seric ** m -- the mailer info for this mailer. 103781161401Seric ** mci -- the mailer connection info -- can be NULL if the 103881161401Seric ** response is given before the connection is made. 103981161401Seric ** e -- the current envelope. 104025a99e2eSeric ** 104125a99e2eSeric ** Returns: 1042db8841e9Seric ** none. 104325a99e2eSeric ** 104425a99e2eSeric ** Side Effects: 1045c1f9df2cSeric ** Errors may be incremented. 104625a99e2eSeric ** ExitStat may be set. 104725a99e2eSeric */ 104825a99e2eSeric 104981161401Seric giveresponse(stat, m, mci, e) 105025a99e2eSeric int stat; 1051588cad61Seric register MAILER *m; 105281161401Seric register MCI *mci; 1053198d9be0Seric ENVELOPE *e; 105425a99e2eSeric { 105525a99e2eSeric register char *statmsg; 105625a99e2eSeric extern char *SysExMsg[]; 105725a99e2eSeric register int i; 1058d4bd8f0eSbostic extern int N_SysEx; 1059d4bd8f0eSbostic #ifdef NAMED_BIND 1060d4bd8f0eSbostic extern int h_errno; 1061d4bd8f0eSbostic #endif 1062198d9be0Seric char buf[MAXLINE]; 10637d55540cSeric extern char *errstring(); 106425a99e2eSeric 106513bbc08cSeric /* 106613bbc08cSeric ** Compute status message from code. 106713bbc08cSeric */ 106813bbc08cSeric 106925a99e2eSeric i = stat - EX__BASE; 1070588cad61Seric if (stat == 0) 1071588cad61Seric statmsg = "250 Sent"; 1072588cad61Seric else if (i < 0 || i > N_SysEx) 1073588cad61Seric { 1074588cad61Seric (void) sprintf(buf, "554 unknown mailer error %d", stat); 1075588cad61Seric stat = EX_UNAVAILABLE; 1076588cad61Seric statmsg = buf; 1077588cad61Seric } 1078198d9be0Seric else if (stat == EX_TEMPFAIL) 1079198d9be0Seric { 10807d55540cSeric (void) strcpy(buf, SysExMsg[i] + 1); 1081d4bd8f0eSbostic #ifdef NAMED_BIND 1082f28da541Smiriam if (h_errno == TRY_AGAIN) 1083f28da541Smiriam statmsg = errstring(h_errno+MAX_ERRNO); 1084f28da541Smiriam else 1085d4bd8f0eSbostic #endif 1086f28da541Smiriam { 10878557d168Seric if (errno != 0) 1088d87e85f3Seric statmsg = errstring(errno); 1089d87e85f3Seric else 1090d87e85f3Seric { 1091d87e85f3Seric #ifdef SMTP 1092d87e85f3Seric extern char SmtpError[]; 1093d87e85f3Seric 1094d87e85f3Seric statmsg = SmtpError; 10956c2c3107Seric #else /* SMTP */ 1096d87e85f3Seric statmsg = NULL; 10976c2c3107Seric #endif /* SMTP */ 1098d87e85f3Seric } 1099f28da541Smiriam } 1100d87e85f3Seric if (statmsg != NULL && statmsg[0] != '\0') 1101d87e85f3Seric { 110287c9b3e7Seric (void) strcat(buf, ": "); 1103d87e85f3Seric (void) strcat(buf, statmsg); 11048557d168Seric } 1105198d9be0Seric statmsg = buf; 1106198d9be0Seric } 110725a99e2eSeric else 1108d87e85f3Seric { 110925a99e2eSeric statmsg = SysExMsg[i]; 11107d55540cSeric if (*statmsg++ == ':') 11117d55540cSeric { 11127d55540cSeric (void) sprintf(buf, "%s: %s", statmsg, errstring(errno)); 11137d55540cSeric statmsg = buf; 11147d55540cSeric } 1115d87e85f3Seric } 1116588cad61Seric 1117588cad61Seric /* 1118588cad61Seric ** Print the message as appropriate 1119588cad61Seric */ 1120588cad61Seric 1121198d9be0Seric if (stat == EX_OK || stat == EX_TEMPFAIL) 1122e12d03eeSeric message(&statmsg[4], errstring(errno)); 112325a99e2eSeric else 112425a99e2eSeric { 1125c1f9df2cSeric Errors++; 1126e12d03eeSeric usrerr(statmsg, errstring(errno)); 112725a99e2eSeric } 112825a99e2eSeric 112925a99e2eSeric /* 113025a99e2eSeric ** Final cleanup. 113125a99e2eSeric ** Log a record of the transaction. Compute the new 113225a99e2eSeric ** ExitStat -- if we already had an error, stick with 113325a99e2eSeric ** that. 113425a99e2eSeric */ 113525a99e2eSeric 11362f624c86Seric if (LogLevel > ((stat == EX_TEMPFAIL) ? 8 : (stat == EX_OK) ? 7 : 6)) 113781161401Seric logdelivery(m, mci, &statmsg[4], e); 1138eb238f8cSeric 1139eb238f8cSeric if (stat != EX_TEMPFAIL) 1140eb238f8cSeric setstat(stat); 1141198d9be0Seric if (stat != EX_OK) 1142198d9be0Seric { 1143198d9be0Seric if (e->e_message != NULL) 1144198d9be0Seric free(e->e_message); 1145198d9be0Seric e->e_message = newstr(&statmsg[4]); 1146198d9be0Seric } 11478557d168Seric errno = 0; 1148d4bd8f0eSbostic #ifdef NAMED_BIND 1149f28da541Smiriam h_errno = 0; 1150d4bd8f0eSbostic #endif 1151eb238f8cSeric } 1152eb238f8cSeric /* 1153eb238f8cSeric ** LOGDELIVERY -- log the delivery in the system log 1154eb238f8cSeric ** 1155eb238f8cSeric ** Parameters: 115681161401Seric ** m -- the mailer info. Can be NULL for initial queue. 115781161401Seric ** mci -- the mailer connection info -- can be NULL if the 115881161401Seric ** log is occuring when no connection is active. 115981161401Seric ** stat -- the message to print for the status. 116081161401Seric ** e -- the current envelope. 1161eb238f8cSeric ** 1162eb238f8cSeric ** Returns: 1163eb238f8cSeric ** none 1164eb238f8cSeric ** 1165eb238f8cSeric ** Side Effects: 1166eb238f8cSeric ** none 1167eb238f8cSeric */ 1168eb238f8cSeric 116981161401Seric logdelivery(m, mci, stat, e) 117081161401Seric MAILER *m; 117181161401Seric register MCI *mci; 1172eb238f8cSeric char *stat; 1173b31e7f2bSeric register ENVELOPE *e; 11745cf56be3Seric { 1175eb238f8cSeric # ifdef LOG 11769507d1f9Seric char *curhost; 1177d6acf3eeSeric char buf[512]; 11789507d1f9Seric extern char *pintvl(); 11799507d1f9Seric extern char *macvalue(); 11809507d1f9Seric 118148ed5d33Seric (void) sprintf(buf, "delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 118281161401Seric 118348ed5d33Seric if (m != NULL) 118471ff6caaSeric { 118548ed5d33Seric (void) strcat(buf, ", mailer="); 118648ed5d33Seric (void) strcat(buf, m->m_name); 118771ff6caaSeric } 118848ed5d33Seric 118948ed5d33Seric if (mci != NULL && mci->mci_host != NULL) 119071ff6caaSeric { 119171ff6caaSeric # ifdef DAEMON 1192*e2f2f828Seric extern SOCKADDR CurHostAddr; 1193*e2f2f828Seric extern char *anynet_ntoa(); 119448ed5d33Seric # endif 119571ff6caaSeric 119648ed5d33Seric (void) strcat(buf, ", relay="); 119748ed5d33Seric (void) strcat(buf, mci->mci_host); 119848ed5d33Seric 119948ed5d33Seric # ifdef DAEMON 120048ed5d33Seric (void) strcat(buf, " ("); 1201*e2f2f828Seric (void) strcat(buf, anynet_ntoa(&CurHostAddr)); 120248ed5d33Seric (void) strcat(buf, ")"); 120371ff6caaSeric # endif 120471ff6caaSeric } 12059507d1f9Seric else 120648ed5d33Seric { 120748ed5d33Seric char *p = macvalue('h', e); 12089507d1f9Seric 120948ed5d33Seric if (p != NULL && p[0] != '\0') 121048ed5d33Seric { 121148ed5d33Seric (void) strcat(buf, ", relay="); 121248ed5d33Seric (void) strcat(buf, p); 121348ed5d33Seric } 121448ed5d33Seric } 1215d6acf3eeSeric 1216d6acf3eeSeric syslog(LOG_INFO, "%s: to=%s, %s, stat=%s", 1217d6acf3eeSeric e->e_id, e->e_to, buf, stat); 12186c2c3107Seric # endif /* LOG */ 121925a99e2eSeric } 122025a99e2eSeric /* 122151552439Seric ** PUTFROMLINE -- output a UNIX-style from line (or whatever) 122225a99e2eSeric ** 122351552439Seric ** This can be made an arbitrary message separator by changing $l 122451552439Seric ** 12259b6c17a6Seric ** One of the ugliest hacks seen by human eyes is contained herein: 12269b6c17a6Seric ** UUCP wants those stupid "remote from <host>" lines. Why oh why 12279b6c17a6Seric ** does a well-meaning programmer such as myself have to deal with 12289b6c17a6Seric ** this kind of antique garbage???? 122925a99e2eSeric ** 123025a99e2eSeric ** Parameters: 123151552439Seric ** fp -- the file to output to. 123251552439Seric ** m -- the mailer describing this entry. 123325a99e2eSeric ** 123425a99e2eSeric ** Returns: 123551552439Seric ** none 123625a99e2eSeric ** 123725a99e2eSeric ** Side Effects: 123851552439Seric ** outputs some text to fp. 123925a99e2eSeric */ 124025a99e2eSeric 1241b31e7f2bSeric putfromline(fp, m, e) 124251552439Seric register FILE *fp; 124351552439Seric register MAILER *m; 1244b31e7f2bSeric ENVELOPE *e; 124525a99e2eSeric { 12462bc47524Seric char *template = "\201l\n"; 124751552439Seric char buf[MAXLINE]; 124825a99e2eSeric 124957fc6f17Seric if (bitnset(M_NHDR, m->m_flags)) 125051552439Seric return; 125113bbc08cSeric 12522c7e1b8dSeric # ifdef UGLYUUCP 125357fc6f17Seric if (bitnset(M_UGLYUUCP, m->m_flags)) 125474b6e67bSeric { 1255ea09d6edSeric char *bang; 1256ea09d6edSeric char xbuf[MAXLINE]; 125774b6e67bSeric 1258ee4b0922Seric expand("\201g", buf, &buf[sizeof buf - 1], e); 12596c2c3107Seric bang = strchr(buf, '!'); 126074b6e67bSeric if (bang == NULL) 126108b25121Seric syserr("554 No ! in UUCP! (%s)", buf); 126274b6e67bSeric else 1263588cad61Seric { 1264ea09d6edSeric *bang++ = '\0'; 12652bc47524Seric (void) sprintf(xbuf, "From %s \201d remote from %s\n", bang, buf); 1266ea09d6edSeric template = xbuf; 126774b6e67bSeric } 1268588cad61Seric } 12696c2c3107Seric # endif /* UGLYUUCP */ 1270b31e7f2bSeric expand(template, buf, &buf[sizeof buf - 1], e); 127177b52738Seric putline(buf, fp, m); 1272bc6e2962Seric } 1273bc6e2962Seric /* 127451552439Seric ** PUTBODY -- put the body of a message. 127551552439Seric ** 127651552439Seric ** Parameters: 127751552439Seric ** fp -- file to output onto. 127877b52738Seric ** m -- a mailer descriptor to control output format. 12799a6a5f55Seric ** e -- the envelope to put out. 128051552439Seric ** 128151552439Seric ** Returns: 128251552439Seric ** none. 128351552439Seric ** 128451552439Seric ** Side Effects: 128551552439Seric ** The message is written onto fp. 128651552439Seric */ 128751552439Seric 128877b52738Seric putbody(fp, m, e) 128951552439Seric FILE *fp; 1290588cad61Seric MAILER *m; 12919a6a5f55Seric register ENVELOPE *e; 129251552439Seric { 129377b52738Seric char buf[MAXLINE]; 129451552439Seric 129551552439Seric /* 129651552439Seric ** Output the body of the message 129751552439Seric */ 129851552439Seric 12999a6a5f55Seric if (e->e_dfp == NULL) 130051552439Seric { 13019a6a5f55Seric if (e->e_df != NULL) 13029a6a5f55Seric { 13039a6a5f55Seric e->e_dfp = fopen(e->e_df, "r"); 13049a6a5f55Seric if (e->e_dfp == NULL) 13058f9146b0Srick syserr("putbody: Cannot open %s for %s from %s", 13068f9146b0Srick e->e_df, e->e_to, e->e_from); 13079a6a5f55Seric } 13089a6a5f55Seric else 130977b52738Seric putline("<<< No Message Collected >>>", fp, m); 13109a6a5f55Seric } 13119a6a5f55Seric if (e->e_dfp != NULL) 13129a6a5f55Seric { 13139a6a5f55Seric rewind(e->e_dfp); 131477b52738Seric while (!ferror(fp) && fgets(buf, sizeof buf, e->e_dfp) != NULL) 131524fc8aeeSeric { 131624fc8aeeSeric if (buf[0] == 'F' && bitnset(M_ESCFROM, m->m_flags) && 1317d6fa2b58Sbostic strncmp(buf, "From ", 5) == 0) 13183462ad9eSeric (void) putc('>', fp); 131977b52738Seric putline(buf, fp, m); 132024fc8aeeSeric } 132151552439Seric 13229a6a5f55Seric if (ferror(e->e_dfp)) 132351552439Seric { 132451552439Seric syserr("putbody: read error"); 132551552439Seric ExitStat = EX_IOERR; 132651552439Seric } 132751552439Seric } 132851552439Seric 132951552439Seric (void) fflush(fp); 133051552439Seric if (ferror(fp) && errno != EPIPE) 133151552439Seric { 133251552439Seric syserr("putbody: write error"); 133351552439Seric ExitStat = EX_IOERR; 133451552439Seric } 133551552439Seric errno = 0; 133625a99e2eSeric } 133725a99e2eSeric /* 133825a99e2eSeric ** MAILFILE -- Send a message to a file. 133925a99e2eSeric ** 1340f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 1341f129ec7dSeric ** bits, sendmail will try to become the owner of that file 1342f129ec7dSeric ** rather than the real user. Obviously, this only works if 1343f129ec7dSeric ** sendmail runs as root. 1344f129ec7dSeric ** 1345588cad61Seric ** This could be done as a subordinate mailer, except that it 1346588cad61Seric ** is used implicitly to save messages in ~/dead.letter. We 1347588cad61Seric ** view this as being sufficiently important as to include it 1348588cad61Seric ** here. For example, if the system is dying, we shouldn't have 1349588cad61Seric ** to create another process plus some pipes to save the message. 1350588cad61Seric ** 135125a99e2eSeric ** Parameters: 135225a99e2eSeric ** filename -- the name of the file to send to. 13536259796dSeric ** ctladdr -- the controlling address header -- includes 13546259796dSeric ** the userid/groupid to be when sending. 135525a99e2eSeric ** 135625a99e2eSeric ** Returns: 135725a99e2eSeric ** The exit code associated with the operation. 135825a99e2eSeric ** 135925a99e2eSeric ** Side Effects: 136025a99e2eSeric ** none. 136125a99e2eSeric */ 136225a99e2eSeric 1363b31e7f2bSeric mailfile(filename, ctladdr, e) 136425a99e2eSeric char *filename; 13656259796dSeric ADDRESS *ctladdr; 1366b31e7f2bSeric register ENVELOPE *e; 136725a99e2eSeric { 136825a99e2eSeric register FILE *f; 136932d19d43Seric register int pid; 137015d084d5Seric int mode; 137125a99e2eSeric 137232d19d43Seric /* 137332d19d43Seric ** Fork so we can change permissions here. 137432d19d43Seric ** Note that we MUST use fork, not vfork, because of 137532d19d43Seric ** the complications of calling subroutines, etc. 137632d19d43Seric */ 137732d19d43Seric 137832d19d43Seric DOFORK(fork); 137932d19d43Seric 138032d19d43Seric if (pid < 0) 138132d19d43Seric return (EX_OSERR); 138232d19d43Seric else if (pid == 0) 138332d19d43Seric { 138432d19d43Seric /* child -- actually write to file */ 1385f129ec7dSeric struct stat stb; 1386f129ec7dSeric 13870984da9fSeric (void) signal(SIGINT, SIG_DFL); 13880984da9fSeric (void) signal(SIGHUP, SIG_DFL); 13890984da9fSeric (void) signal(SIGTERM, SIG_DFL); 13903462ad9eSeric (void) umask(OldUmask); 139195f16dc0Seric 1392f129ec7dSeric if (stat(filename, &stb) < 0) 1393e6e1265fSeric stb.st_mode = 0666; 139415d084d5Seric mode = stb.st_mode; 139595f16dc0Seric 139695f16dc0Seric /* limit the errors to those actually caused in the child */ 139795f16dc0Seric errno = 0; 139895f16dc0Seric ExitStat = EX_OK; 139995f16dc0Seric 1400f129ec7dSeric if (bitset(0111, stb.st_mode)) 1401f129ec7dSeric exit(EX_CANTCREAT); 140203827b5fSeric if (ctladdr == NULL) 14038f9146b0Srick ctladdr = &e->e_from; 140415d084d5Seric else 140515d084d5Seric { 140615d084d5Seric /* ignore setuid and setgid bits */ 140715d084d5Seric mode &= ~(S_ISGID|S_ISUID); 140815d084d5Seric } 140915d084d5Seric 14108f9146b0Srick /* we have to open the dfile BEFORE setuid */ 14118f9146b0Srick if (e->e_dfp == NULL && e->e_df != NULL) 14128f9146b0Srick { 14138f9146b0Srick e->e_dfp = fopen(e->e_df, "r"); 141495f16dc0Seric if (e->e_dfp == NULL) 141595f16dc0Seric { 14168f9146b0Srick syserr("mailfile: Cannot open %s for %s from %s", 14178f9146b0Srick e->e_df, e->e_to, e->e_from); 14188f9146b0Srick } 14198f9146b0Srick } 14208f9146b0Srick 142115d084d5Seric if (!bitset(S_ISGID, mode) || setgid(stb.st_gid) < 0) 1422e36b99e2Seric { 142395f16dc0Seric if (ctladdr->q_uid == 0) 142495f16dc0Seric { 1425e36b99e2Seric (void) setgid(DefGid); 1426898a126bSbostic (void) initgroups(DefUser, DefGid); 142795f16dc0Seric } 142895f16dc0Seric else 142995f16dc0Seric { 14306259796dSeric (void) setgid(ctladdr->q_gid); 1431898a126bSbostic (void) initgroups(ctladdr->q_ruser ? 1432898a126bSbostic ctladdr->q_ruser : ctladdr->q_user, 1433898a126bSbostic ctladdr->q_gid); 1434898a126bSbostic } 1435e36b99e2Seric } 143615d084d5Seric if (!bitset(S_ISUID, mode) || setuid(stb.st_uid) < 0) 1437e36b99e2Seric { 1438e36b99e2Seric if (ctladdr->q_uid == 0) 1439e36b99e2Seric (void) setuid(DefUid); 1440e36b99e2Seric else 14416259796dSeric (void) setuid(ctladdr->q_uid); 1442e36b99e2Seric } 144395f16dc0Seric FileName = filename; 144495f16dc0Seric LineNumber = 0; 144527628d59Seric f = dfopen(filename, "a"); 144625a99e2eSeric if (f == NULL) 144795f16dc0Seric { 144808b25121Seric message("554 cannot open"); 144932d19d43Seric exit(EX_CANTCREAT); 145095f16dc0Seric } 145125a99e2eSeric 1452b31e7f2bSeric putfromline(f, ProgMailer, e); 1453b843d759Seric (*e->e_puthdr)(f, ProgMailer, e); 145477b52738Seric putline("\n", f, ProgMailer); 1455b843d759Seric (*e->e_putbody)(f, ProgMailer, e); 145677b52738Seric putline("\n", f, ProgMailer); 145795f16dc0Seric if (ferror(f)) 145895f16dc0Seric { 145908b25121Seric message("451 I/O error"); 146095f16dc0Seric setstat(EX_IOERR); 146195f16dc0Seric } 1462ee4b0922Seric (void) xfclose(f, "mailfile", filename); 146332d19d43Seric (void) fflush(stdout); 1464e36b99e2Seric 146527628d59Seric /* reset ISUID & ISGID bits for paranoid systems */ 1466c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 146795f16dc0Seric exit(ExitStat); 146813bbc08cSeric /*NOTREACHED*/ 146932d19d43Seric } 147032d19d43Seric else 147132d19d43Seric { 147232d19d43Seric /* parent -- wait for exit status */ 1473588cad61Seric int st; 147432d19d43Seric 1475588cad61Seric st = waitfor(pid); 1476588cad61Seric if ((st & 0377) != 0) 1477588cad61Seric return (EX_UNAVAILABLE); 1478588cad61Seric else 1479588cad61Seric return ((st >> 8) & 0377); 14808f9146b0Srick /*NOTREACHED*/ 148132d19d43Seric } 148225a99e2eSeric } 1483ea4dc939Seric /* 1484ea4dc939Seric ** SENDALL -- actually send all the messages. 1485ea4dc939Seric ** 1486ea4dc939Seric ** Parameters: 14870c52a0b3Seric ** e -- the envelope to send. 14887b95031aSeric ** mode -- the delivery mode to use. If SM_DEFAULT, use 1489511ad433Seric ** the current e->e_sendmode. 1490ea4dc939Seric ** 1491ea4dc939Seric ** Returns: 1492ea4dc939Seric ** none. 1493ea4dc939Seric ** 1494ea4dc939Seric ** Side Effects: 1495ea4dc939Seric ** Scans the send lists and sends everything it finds. 14960c52a0b3Seric ** Delivers any appropriate error messages. 1497276723a8Seric ** If we are running in a non-interactive mode, takes the 1498276723a8Seric ** appropriate action. 1499ea4dc939Seric */ 1500ea4dc939Seric 1501276723a8Seric sendall(e, mode) 15020c52a0b3Seric ENVELOPE *e; 1503276723a8Seric char mode; 1504ea4dc939Seric { 1505e77e673fSeric register ADDRESS *q; 15069836bea2Seric char *owner; 15079836bea2Seric int otherowners; 15081cc3a5d3Seric register ENVELOPE *ee; 15099836bea2Seric ENVELOPE *splitenv = NULL; 1510ea4dc939Seric 15117b95031aSeric /* determine actual delivery mode */ 15127b95031aSeric if (mode == SM_DEFAULT) 15137b95031aSeric { 15145f73204aSeric extern bool shouldqueue(); 15157b95031aSeric 1516511ad433Seric mode = e->e_sendmode; 15173f324333Seric if (mode != SM_VERIFY && 15183f324333Seric shouldqueue(e->e_msgpriority, e->e_ctime)) 15193f324333Seric mode = SM_QUEUE; 15207b95031aSeric } 15217b95031aSeric 1522df864a8fSeric if (tTd(13, 1)) 1523772e6e50Seric { 1524ee4b0922Seric printf("\nSENDALL: mode %c, e_from ", mode); 1525ee4b0922Seric printaddr(&e->e_from, FALSE); 1526ee4b0922Seric printf("sendqueue:\n"); 15270c52a0b3Seric printaddr(e->e_sendqueue, TRUE); 1528772e6e50Seric } 1529ea4dc939Seric 15300c52a0b3Seric /* 1531276723a8Seric ** Do any preprocessing necessary for the mode we are running. 1532588cad61Seric ** Check to make sure the hop count is reasonable. 1533588cad61Seric ** Delete sends to the sender in mailing lists. 1534276723a8Seric */ 1535276723a8Seric 1536588cad61Seric CurEnv = e; 1537276723a8Seric 15381d57450bSeric if (e->e_hopcount > MaxHopCount) 1539276723a8Seric { 15408f9146b0Srick errno = 0; 154108b25121Seric syserr("554 too many hops %d (%d max): from %s, to %s", 1542655518ecSeric e->e_hopcount, MaxHopCount, e->e_from.q_paddr, 1543655518ecSeric e->e_sendqueue->q_paddr); 1544588cad61Seric return; 1545588cad61Seric } 1546588cad61Seric 1547588cad61Seric if (!MeToo) 1548276723a8Seric { 1549f3d6c55cSeric extern ADDRESS *recipient(); 1550f3d6c55cSeric 155175f1ade9Seric if (tTd(13, 5)) 155275f1ade9Seric { 155375f1ade9Seric printf("sendall: QDONTSEND "); 155475f1ade9Seric printaddr(&e->e_from, FALSE); 155575f1ade9Seric } 1556ee4b0922Seric e->e_from.q_flags |= QDONTSEND; 1557b843d759Seric (void) recipient(&e->e_from, &e->e_sendqueue, e); 1558276723a8Seric } 1559588cad61Seric 15609836bea2Seric /* 15619836bea2Seric ** Handle alias owners. 15629836bea2Seric ** 15639836bea2Seric ** We scan up the q_alias chain looking for owners. 15649836bea2Seric ** We discard owners that are the same as the return path. 15659836bea2Seric */ 15669836bea2Seric 15679836bea2Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 15689836bea2Seric { 15699836bea2Seric register struct address *a; 15709836bea2Seric 15719836bea2Seric for (a = q; a != NULL && a->q_owner == NULL; a = a->q_alias) 15729836bea2Seric continue; 15739836bea2Seric if (a != NULL) 15749836bea2Seric q->q_owner = a->q_owner; 15759836bea2Seric 1576ee4b0922Seric if (q->q_owner != NULL && 1577ee4b0922Seric !bitset(QDONTSEND, q->q_flags) && 1578ee4b0922Seric strcmp(q->q_owner, e->e_from.q_paddr) == 0) 15799836bea2Seric q->q_owner = NULL; 15809836bea2Seric } 15819836bea2Seric 15829836bea2Seric owner = ""; 15839836bea2Seric otherowners = 1; 15849836bea2Seric while (owner != NULL && otherowners > 0) 15859836bea2Seric { 15869836bea2Seric owner = NULL; 15879836bea2Seric otherowners = 0; 15889836bea2Seric 15899836bea2Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 15909836bea2Seric { 15919836bea2Seric if (bitset(QDONTSEND, q->q_flags)) 15929836bea2Seric continue; 15939836bea2Seric 15949836bea2Seric if (q->q_owner != NULL) 15959836bea2Seric { 15969836bea2Seric if (owner == NULL) 15979836bea2Seric owner = q->q_owner; 15989836bea2Seric else if (owner != q->q_owner) 15999836bea2Seric { 16009836bea2Seric if (strcmp(owner, q->q_owner) == 0) 16019836bea2Seric { 16029836bea2Seric /* make future comparisons cheap */ 16039836bea2Seric q->q_owner = owner; 16049836bea2Seric } 16059836bea2Seric else 16069836bea2Seric { 16079836bea2Seric otherowners++; 16089836bea2Seric } 16099836bea2Seric owner = q->q_owner; 16109836bea2Seric } 16119836bea2Seric } 16129836bea2Seric else 16139836bea2Seric { 16149836bea2Seric otherowners++; 16159836bea2Seric } 16169836bea2Seric } 16179836bea2Seric 16189836bea2Seric if (owner != NULL && otherowners > 0) 16199836bea2Seric { 16209836bea2Seric extern HDR *copyheader(); 16219836bea2Seric extern ADDRESS *copyqueue(); 16229836bea2Seric 1623ee4b0922Seric /* 1624ee4b0922Seric ** Split this envelope into two. 1625ee4b0922Seric */ 1626ee4b0922Seric 16279836bea2Seric ee = (ENVELOPE *) xalloc(sizeof(ENVELOPE)); 1628ee4b0922Seric *ee = *e; 16299836bea2Seric ee->e_id = NULL; 1630ee4b0922Seric (void) queuename(ee, '\0'); 1631ee4b0922Seric 1632ee4b0922Seric if (tTd(13, 1)) 1633ee4b0922Seric printf("sendall: split %s into %s\n", 1634ee4b0922Seric e->e_id, ee->e_id); 1635ee4b0922Seric 16369836bea2Seric ee->e_header = copyheader(e->e_header); 16379836bea2Seric ee->e_sendqueue = copyqueue(e->e_sendqueue); 16389836bea2Seric ee->e_errorqueue = copyqueue(e->e_errorqueue); 16399836bea2Seric ee->e_flags = e->e_flags & ~(EF_INQUEUE|EF_CLRQUEUE); 1640579ef0ddSeric setsender(owner, ee, NULL, TRUE); 1641ee4b0922Seric if (tTd(13, 5)) 1642ee4b0922Seric { 1643ee4b0922Seric printf("sendall(split): QDONTSEND "); 1644ee4b0922Seric printaddr(&ee->e_from, FALSE); 1645ee4b0922Seric } 1646ee4b0922Seric ee->e_from.q_flags |= QDONTSEND; 1647ee4b0922Seric ee->e_dfp = NULL; 1648ee4b0922Seric ee->e_xfp = NULL; 1649ee4b0922Seric ee->e_lockfp = NULL; 1650ee4b0922Seric ee->e_df = NULL; 1651511ad433Seric ee->e_errormode = EM_MAIL; 16529836bea2Seric ee->e_sibling = splitenv; 16539836bea2Seric splitenv = ee; 16549836bea2Seric 16559836bea2Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 16569836bea2Seric if (q->q_owner == owner) 16579836bea2Seric q->q_flags |= QDONTSEND; 16589836bea2Seric for (q = ee->e_sendqueue; q != NULL; q = q->q_next) 16599836bea2Seric if (q->q_owner != owner) 16609836bea2Seric q->q_flags |= QDONTSEND; 16619836bea2Seric 16629836bea2Seric if (e->e_df != NULL && mode != SM_VERIFY) 16639836bea2Seric { 16649836bea2Seric ee->e_dfp = NULL; 1665239b3abaSeric ee->e_df = newstr(queuename(ee, 'd')); 16669836bea2Seric if (link(e->e_df, ee->e_df) < 0) 16679836bea2Seric { 16689836bea2Seric syserr("sendall: link(%s, %s)", 16699836bea2Seric e->e_df, ee->e_df); 16709836bea2Seric } 16719836bea2Seric } 1672ee4b0922Seric 1673ee4b0922Seric if (mode != SM_VERIFY) 1674ee4b0922Seric { 1675ee4b0922Seric char xfbuf1[20], xfbuf2[20]; 1676ee4b0922Seric 1677ee4b0922Seric (void) strcpy(xfbuf1, queuename(e, 'x')); 1678ee4b0922Seric (void) strcpy(xfbuf2, queuename(ee, 'x')); 1679ee4b0922Seric if (link(xfbuf1, xfbuf2) < 0) 1680ee4b0922Seric { 1681ee4b0922Seric syserr("sendall: link(%s, %s)", 1682ee4b0922Seric xfbuf1, xfbuf2); 1683ee4b0922Seric } 1684ee4b0922Seric } 1685336a44ebSeric #ifdef LOG 1686336a44ebSeric if (LogLevel > 4) 1687336a44ebSeric syslog(LOG_INFO, "%s: clone %s", 1688336a44ebSeric ee->e_id, e->e_id); 1689336a44ebSeric #endif 16909836bea2Seric } 16919836bea2Seric } 16929836bea2Seric 16939836bea2Seric if (owner != NULL) 1694ee4b0922Seric { 1695579ef0ddSeric setsender(owner, e, NULL, TRUE); 1696ee4b0922Seric if (tTd(13, 5)) 1697ee4b0922Seric { 1698ee4b0922Seric printf("sendall(owner): QDONTSEND "); 1699ee4b0922Seric printaddr(&e->e_from, FALSE); 1700ee4b0922Seric } 1701ee4b0922Seric e->e_from.q_flags |= QDONTSEND; 1702511ad433Seric e->e_errormode = EM_MAIL; 1703ee4b0922Seric } 17049836bea2Seric 1705588cad61Seric # ifdef QUEUE 1706b254bcb6Seric if ((mode == SM_QUEUE || mode == SM_FORK || 1707b254bcb6Seric (mode != SM_VERIFY && SuperSafe)) && 1708b254bcb6Seric !bitset(EF_INQUEUE, e->e_flags)) 17091cc3a5d3Seric { 17101cc3a5d3Seric /* be sure everything is instantiated in the queue */ 1711e020b127Seric queueup(e, TRUE, mode == SM_QUEUE); 17121cc3a5d3Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 17131cc3a5d3Seric queueup(ee, TRUE, mode == SM_QUEUE); 17141cc3a5d3Seric } 17156c2c3107Seric #endif /* QUEUE */ 1716276723a8Seric 17179836bea2Seric if (splitenv != NULL) 17189836bea2Seric { 17199836bea2Seric if (tTd(13, 1)) 17209836bea2Seric { 17219836bea2Seric printf("\nsendall: Split queue; remaining queue:\n"); 17229836bea2Seric printaddr(e->e_sendqueue, TRUE); 17239836bea2Seric } 17249836bea2Seric 1725ee4b0922Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 17269836bea2Seric { 1727ee4b0922Seric CurEnv = ee; 1728ee4b0922Seric sendenvelope(ee, mode); 17299836bea2Seric } 17309836bea2Seric 17319836bea2Seric CurEnv = e; 17329836bea2Seric } 1733ee4b0922Seric sendenvelope(e, mode); 1734ee4b0922Seric 1735ee4b0922Seric for (; splitenv != NULL; splitenv = splitenv->e_sibling) 1736ee4b0922Seric dropenvelope(splitenv); 1737ee4b0922Seric } 1738ee4b0922Seric 1739ee4b0922Seric sendenvelope(e, mode) 1740ee4b0922Seric register ENVELOPE *e; 1741ee4b0922Seric char mode; 1742ee4b0922Seric { 1743ee4b0922Seric bool oldverbose; 1744ee4b0922Seric int pid; 1745ee4b0922Seric register ADDRESS *q; 17465ff3c5eaSeric #ifdef LOCKF 17475ff3c5eaSeric struct flock lfd; 17485ff3c5eaSeric #endif 17499836bea2Seric 1750276723a8Seric oldverbose = Verbose; 1751276723a8Seric switch (mode) 1752276723a8Seric { 1753276723a8Seric case SM_VERIFY: 1754276723a8Seric Verbose = TRUE; 1755276723a8Seric break; 1756276723a8Seric 1757276723a8Seric case SM_QUEUE: 1758c7f5410dSeric queueonly: 1759b254bcb6Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 1760276723a8Seric return; 1761276723a8Seric 1762276723a8Seric case SM_FORK: 17639a6a5f55Seric if (e->e_xfp != NULL) 17649a6a5f55Seric (void) fflush(e->e_xfp); 1765c7f5410dSeric 1766c7f5410dSeric # ifdef LOCKF 1767c7f5410dSeric /* 1768c7f5410dSeric ** Since lockf has the interesting semantic that the 17691c265a00Seric ** lock is lost when we fork, we have to risk losing 17701c265a00Seric ** the lock here by closing before the fork, and then 17711c265a00Seric ** trying to get it back in the child. 1772c7f5410dSeric */ 1773c7f5410dSeric 1774e020b127Seric if (e->e_lockfp != NULL) 1775c7f5410dSeric { 1776ee4b0922Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 1777e020b127Seric e->e_lockfp = NULL; 1778c7f5410dSeric } 1779c7f5410dSeric # endif /* LOCKF */ 1780c7f5410dSeric 1781276723a8Seric pid = fork(); 1782276723a8Seric if (pid < 0) 1783276723a8Seric { 1784c7f5410dSeric goto queueonly; 1785276723a8Seric } 1786276723a8Seric else if (pid > 0) 1787a6fce3d8Seric { 1788a6fce3d8Seric /* be sure we leave the temp files to our child */ 1789b254bcb6Seric e->e_id = e->e_df = NULL; 1790c7f5410dSeric # ifndef LOCKF 1791e020b127Seric if (e->e_lockfp != NULL) 179275f1ade9Seric { 1793ee4b0922Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 179475f1ade9Seric e->e_lockfp = NULL; 179575f1ade9Seric } 1796c7f5410dSeric # endif 179775f1ade9Seric 179875f1ade9Seric /* close any random open files in the envelope */ 179975f1ade9Seric if (e->e_dfp != NULL) 180075f1ade9Seric { 1801ee4b0922Seric (void) xfclose(e->e_dfp, "sendenvelope", "dfp"); 180275f1ade9Seric e->e_dfp = NULL; 180375f1ade9Seric } 180475f1ade9Seric if (e->e_xfp != NULL) 180575f1ade9Seric { 1806ee4b0922Seric (void) xfclose(e->e_xfp, "sendenvelope", "xfp"); 180775f1ade9Seric e->e_xfp = NULL; 180875f1ade9Seric } 1809276723a8Seric return; 1810a6fce3d8Seric } 1811276723a8Seric 1812276723a8Seric /* double fork to avoid zombies */ 1813276723a8Seric if (fork() > 0) 1814276723a8Seric exit(EX_OK); 1815276723a8Seric 1816a6fce3d8Seric /* be sure we are immune from the terminal */ 18178dadacffSeric disconnect(FALSE, e); 1818a6fce3d8Seric 1819e6720d51Seric # ifdef LOCKF 1820e6720d51Seric /* 1821c7f5410dSeric ** Now try to get our lock back. 1822e6720d51Seric */ 1823e6720d51Seric 18241c265a00Seric lfd.l_type = F_WRLCK; 18251c265a00Seric lfd.l_whence = lfd.l_start = lfd.l_len = 0; 1826e020b127Seric e->e_lockfp = fopen(queuename(e, 'q'), "r+"); 1827e020b127Seric if (e->e_lockfp == NULL || 18281c265a00Seric fcntl(fileno(e->e_lockfp), F_SETLK, &lfd) < 0) 1829e6720d51Seric { 1830e6720d51Seric /* oops.... lost it */ 1831336a44ebSeric if (tTd(13, 1)) 1832336a44ebSeric printf("sendenvelope: %s lost lock: lockfp=%x, %s\n", 1833336a44ebSeric e->e_id, e->e_lockfp, errstring(errno)); 1834336a44ebSeric 1835e6720d51Seric # ifdef LOG 18362f624c86Seric if (LogLevel > 29) 1837c7f5410dSeric syslog(LOG_NOTICE, "%s: lost lock: %m", 1838b31e7f2bSeric e->e_id); 1839e6720d51Seric # endif /* LOG */ 1840e6720d51Seric exit(EX_OK); 1841e6720d51Seric } 1842e6720d51Seric # endif /* LOCKF */ 1843e6720d51Seric 18441caa9a59Seric /* 18451caa9a59Seric ** Close any cached connections. 18461caa9a59Seric ** 18471caa9a59Seric ** We don't send the QUIT protocol because the parent 18481caa9a59Seric ** still knows about the connection. 18491caa9a59Seric ** 18501caa9a59Seric ** This should only happen when delivering an error 18511caa9a59Seric ** message. 18521caa9a59Seric */ 18531caa9a59Seric 18541caa9a59Seric mci_flush(FALSE, NULL); 18551caa9a59Seric 1856276723a8Seric break; 1857276723a8Seric } 1858276723a8Seric 1859276723a8Seric /* 18600c52a0b3Seric ** Run through the list and send everything. 18610c52a0b3Seric */ 18620c52a0b3Seric 1863655518ecSeric e->e_nsent = 0; 18640c52a0b3Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 1865ea4dc939Seric { 1866276723a8Seric if (mode == SM_VERIFY) 1867ea4dc939Seric { 1868a6fce3d8Seric e->e_to = q->q_paddr; 1869e77e673fSeric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 187008b25121Seric message("deliverable"); 1871ea4dc939Seric } 1872ee4b0922Seric else if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 1873dde5acadSeric { 1874de1179f5Seric # ifdef QUEUE 1875dde5acadSeric /* 1876dde5acadSeric ** Checkpoint the send list every few addresses 1877dde5acadSeric */ 1878dde5acadSeric 1879655518ecSeric if (e->e_nsent >= CheckpointInterval) 1880dde5acadSeric { 1881e020b127Seric queueup(e, TRUE, FALSE); 1882655518ecSeric e->e_nsent = 0; 1883dde5acadSeric } 1884de1179f5Seric # endif /* QUEUE */ 1885655518ecSeric (void) deliver(e, q); 1886dde5acadSeric } 1887ea4dc939Seric } 188814a8ed7aSeric Verbose = oldverbose; 18890c52a0b3Seric 18900c52a0b3Seric /* 18910c52a0b3Seric ** Now run through and check for errors. 18920c52a0b3Seric */ 18930c52a0b3Seric 1894e020b127Seric if (mode == SM_VERIFY) 1895ee4b0922Seric { 18960c52a0b3Seric return; 1897ee4b0922Seric } 18980c52a0b3Seric 18990c52a0b3Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 19000c52a0b3Seric { 1901df864a8fSeric if (tTd(13, 3)) 1902df864a8fSeric { 1903df864a8fSeric printf("Checking "); 1904df864a8fSeric printaddr(q, FALSE); 1905df864a8fSeric } 1906df864a8fSeric 1907b254bcb6Seric /* only send errors if the message failed */ 1908b254bcb6Seric if (!bitset(QBADADDR, q->q_flags)) 1909b254bcb6Seric continue; 19100c52a0b3Seric 1911ee4b0922Seric e->e_flags |= EF_FATALERRS; 1912ee4b0922Seric 1913b8043ddbSeric if (q->q_owner == NULL && strcmp(e->e_from.q_paddr, "<>") != 0) 19149836bea2Seric (void) sendtolist(e->e_from.q_paddr, NULL, 19151caa9a59Seric &e->e_errorqueue, e); 19160c52a0b3Seric } 1917276723a8Seric 1918276723a8Seric if (mode == SM_FORK) 1919276723a8Seric finis(); 19200c52a0b3Seric } 1921e103b48fSeric /* 1922e103b48fSeric ** HOSTSIGNATURE -- return the "signature" for a host. 1923e103b48fSeric ** 1924e103b48fSeric ** The signature describes how we are going to send this -- it 1925e103b48fSeric ** can be just the hostname (for non-Internet hosts) or can be 1926e103b48fSeric ** an ordered list of MX hosts. 1927e103b48fSeric ** 1928e103b48fSeric ** Parameters: 1929e103b48fSeric ** m -- the mailer describing this host. 1930e103b48fSeric ** host -- the host name. 1931e103b48fSeric ** e -- the current envelope. 1932e103b48fSeric ** 1933e103b48fSeric ** Returns: 1934e103b48fSeric ** The signature for this host. 1935e103b48fSeric ** 1936e103b48fSeric ** Side Effects: 1937e103b48fSeric ** Can tweak the symbol table. 1938e103b48fSeric */ 1939e103b48fSeric 1940e103b48fSeric char * 1941e103b48fSeric hostsignature(m, host, e) 1942e103b48fSeric register MAILER *m; 1943e103b48fSeric char *host; 1944e103b48fSeric ENVELOPE *e; 1945e103b48fSeric { 1946e103b48fSeric register char *p; 1947e103b48fSeric register STAB *s; 1948e103b48fSeric int i; 1949e103b48fSeric int len; 1950e103b48fSeric #ifdef NAMED_BIND 1951e103b48fSeric int nmx; 1952e103b48fSeric auto int rcode; 1953e103b48fSeric char *mxhosts[MAXMXHOSTS + 1]; 1954e103b48fSeric static char myhostbuf[MAXNAME]; 1955e103b48fSeric #endif 1956e103b48fSeric 1957e103b48fSeric /* 1958e103b48fSeric ** Check to see if this uses IPC -- if not, it can't have MX records. 1959e103b48fSeric */ 1960e103b48fSeric 1961e103b48fSeric p = m->m_mailer; 1962e103b48fSeric if (strcmp(p, "[IPC]") != 0 && strcmp(p, "[TCP]") != 0) 1963e103b48fSeric { 1964e103b48fSeric /* just an ordinary mailer */ 1965e103b48fSeric return host; 1966e103b48fSeric } 1967e103b48fSeric 1968e103b48fSeric /* 1969e103b48fSeric ** If it is a numeric address, just return it. 1970e103b48fSeric */ 1971e103b48fSeric 1972e103b48fSeric if (host[0] == '[') 1973e103b48fSeric return host; 1974e103b48fSeric 1975e103b48fSeric /* 1976e103b48fSeric ** Look it up in the symbol table. 1977e103b48fSeric */ 1978e103b48fSeric 1979e103b48fSeric s = stab(host, ST_HOSTSIG, ST_ENTER); 1980e103b48fSeric if (s->s_hostsig != NULL) 1981e103b48fSeric return s->s_hostsig; 1982e103b48fSeric 1983e103b48fSeric /* 1984e103b48fSeric ** Not already there -- create a signature. 1985e103b48fSeric */ 1986e103b48fSeric 1987e103b48fSeric #ifdef NAMED_BIND 1988e103b48fSeric if (myhostbuf[0] == '\0') 19892bc47524Seric expand("\201j", myhostbuf, &myhostbuf[sizeof myhostbuf - 1], e); 1990e103b48fSeric 1991e103b48fSeric nmx = getmxrr(host, mxhosts, myhostbuf, &rcode); 19927d55540cSeric 1993e103b48fSeric if (nmx <= 0) 1994e103b48fSeric { 1995e103b48fSeric register MCI *mci; 1996e103b48fSeric extern int errno; 1997e103b48fSeric extern MCI *mci_get(); 1998e103b48fSeric 1999e103b48fSeric /* update the connection info for this host */ 2000e103b48fSeric mci = mci_get(host, m); 2001e103b48fSeric mci->mci_exitstat = rcode; 2002e103b48fSeric mci->mci_errno = errno; 2003e103b48fSeric 2004e103b48fSeric /* and return the original host name as the signature */ 2005e103b48fSeric s->s_hostsig = host; 2006e103b48fSeric return host; 2007e103b48fSeric } 2008e103b48fSeric 2009e103b48fSeric len = 0; 2010e103b48fSeric for (i = 0; i < nmx; i++) 2011e103b48fSeric { 2012e103b48fSeric len += strlen(mxhosts[i]) + 1; 2013e103b48fSeric } 2014e103b48fSeric s->s_hostsig = p = xalloc(len); 2015e103b48fSeric for (i = 0; i < nmx; i++) 2016e103b48fSeric { 2017e103b48fSeric if (i != 0) 2018e103b48fSeric *p++ = ':'; 2019e103b48fSeric strcpy(p, mxhosts[i]); 2020e103b48fSeric p += strlen(p); 2021e103b48fSeric } 2022e103b48fSeric makelower(s->s_hostsig); 2023e103b48fSeric #else 2024e103b48fSeric /* not using BIND -- the signature is just the host name */ 2025e103b48fSeric s->s_hostsig = host; 2026e103b48fSeric #endif 2027e103b48fSeric if (tTd(17, 1)) 2028e103b48fSeric printf("hostsignature(%s) = %s\n", host, s->s_hostsig); 2029e103b48fSeric return s->s_hostsig; 2030e103b48fSeric } 2031