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*c9be6216Seric static char sccsid[] = "@(#)deliver.c 6.54 (Berkeley) 03/25/93"; 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; 86*c9be6216Seric CurEnv = e; /* just in case */ 8751552439Seric 886ef48975Seric if (tTd(10, 1)) 895dfc646bSeric printf("\n--deliver, mailer=%d, host=`%s', first user=`%s'\n", 9051552439Seric m->m_mno, host, to->q_user); 91f3dbc832Seric 92f3dbc832Seric /* 93f3dbc832Seric ** If this mailer is expensive, and if we don't want to make 94f3dbc832Seric ** connections now, just mark these addresses and return. 95f3dbc832Seric ** This is useful if we want to batch connections to 96f3dbc832Seric ** reduce load. This will cause the messages to be 97f3dbc832Seric ** queued up, and a daemon will come along to send the 98f3dbc832Seric ** messages later. 99f3dbc832Seric ** This should be on a per-mailer basis. 100f3dbc832Seric */ 101f3dbc832Seric 10219c47125Seric if (NoConnect && !bitset(EF_QUEUERUN, e->e_flags) && 10319c47125Seric bitnset(M_EXPENSIVE, m->m_flags) && !Verbose) 104f3dbc832Seric { 105f3dbc832Seric for (; to != NULL; to = to->q_next) 106f4560e80Seric { 107ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 108c6e18ac5Seric to->q_mailer != m) 109f4560e80Seric continue; 110f3dbc832Seric to->q_flags |= QQUEUEUP|QDONTSEND; 111588cad61Seric e->e_to = to->q_paddr; 11208b25121Seric message("queued"); 1132f624c86Seric if (LogLevel > 8) 11481161401Seric logdelivery(m, NULL, "queued", e); 115f4560e80Seric } 116588cad61Seric e->e_to = NULL; 117f3dbc832Seric return (0); 118f3dbc832Seric } 119f3dbc832Seric 12025a99e2eSeric /* 1215dfc646bSeric ** Do initial argv setup. 1225dfc646bSeric ** Insert the mailer name. Notice that $x expansion is 1235dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 1245dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 1255dfc646bSeric ** code does not check for 'pv' overflow; this places a 1265dfc646bSeric ** manifest lower limit of 4 for MAXPV. 1273bea8136Seric ** The from address rewrite is expected to make 1283bea8136Seric ** the address relative to the other end. 1295dfc646bSeric */ 1305dfc646bSeric 13178442df3Seric /* rewrite from address, using rewriting rules */ 132ee4b0922Seric (void) strcpy(rpathbuf, remotename(e->e_from.q_paddr, m, TRUE, FALSE, 1339c69ca01Seric TRUE, FALSE, e)); 134ee4b0922Seric define('g', rpathbuf, e); /* translated return path */ 135588cad61Seric define('h', host, e); /* to host */ 1365dfc646bSeric Errors = 0; 1375dfc646bSeric pvp = pv; 1385dfc646bSeric *pvp++ = m->m_argv[0]; 1395dfc646bSeric 1405dfc646bSeric /* insert -f or -r flag as appropriate */ 14157fc6f17Seric if (FromFlag && (bitnset(M_FOPT, m->m_flags) || bitnset(M_ROPT, m->m_flags))) 1425dfc646bSeric { 14357fc6f17Seric if (bitnset(M_FOPT, m->m_flags)) 1445dfc646bSeric *pvp++ = "-f"; 1455dfc646bSeric else 1465dfc646bSeric *pvp++ = "-r"; 147c23ed322Seric *pvp++ = newstr(rpathbuf); 1485dfc646bSeric } 1495dfc646bSeric 1505dfc646bSeric /* 1515dfc646bSeric ** Append the other fixed parts of the argv. These run 1525dfc646bSeric ** up to the first entry containing "$u". There can only 1535dfc646bSeric ** be one of these, and there are only a few more slots 1545dfc646bSeric ** in the pv after it. 1555dfc646bSeric */ 1565dfc646bSeric 1575dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 1585dfc646bSeric { 1592bc47524Seric /* can't use strchr here because of sign extension problems */ 1602bc47524Seric while (*p != '\0') 1612bc47524Seric { 1622bc47524Seric if ((*p++ & 0377) == MACROEXPAND) 1632bc47524Seric { 1642bc47524Seric if (*p == 'u') 1655dfc646bSeric break; 1662bc47524Seric } 1672bc47524Seric } 1682bc47524Seric 1692bc47524Seric if (*p != '\0') 1705dfc646bSeric break; 1715dfc646bSeric 1725dfc646bSeric /* this entry is safe -- go ahead and process it */ 173588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 1745dfc646bSeric *pvp++ = newstr(buf); 1755dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 1765dfc646bSeric { 17708b25121Seric syserr("554 Too many parameters to %s before $u", pv[0]); 1785dfc646bSeric return (-1); 1795dfc646bSeric } 1805dfc646bSeric } 181c579ef51Seric 18233db8731Seric /* 18333db8731Seric ** If we have no substitution for the user name in the argument 18433db8731Seric ** list, we know that we must supply the names otherwise -- and 18533db8731Seric ** SMTP is the answer!! 18633db8731Seric */ 18733db8731Seric 1885dfc646bSeric if (*mvp == NULL) 189c579ef51Seric { 190c579ef51Seric /* running SMTP */ 1912c7e1b8dSeric # ifdef SMTP 192c579ef51Seric clever = TRUE; 193c579ef51Seric *pvp = NULL; 1946c2c3107Seric # else /* SMTP */ 19533db8731Seric /* oops! we don't implement SMTP */ 19608b25121Seric syserr("554 SMTP style mailer"); 1972c7e1b8dSeric return (EX_SOFTWARE); 1986c2c3107Seric # endif /* SMTP */ 199c579ef51Seric } 2005dfc646bSeric 2015dfc646bSeric /* 2025dfc646bSeric ** At this point *mvp points to the argument with $u. We 2035dfc646bSeric ** run through our address list and append all the addresses 2045dfc646bSeric ** we can. If we run out of space, do not fret! We can 2055dfc646bSeric ** always send another copy later. 2065dfc646bSeric */ 2075dfc646bSeric 2085dfc646bSeric tobuf[0] = '\0'; 209588cad61Seric e->e_to = tobuf; 2106259796dSeric ctladdr = NULL; 211e103b48fSeric firstsig = hostsignature(firstto->q_mailer, firstto->q_host, e); 2125dfc646bSeric for (; to != NULL; to = to->q_next) 2135dfc646bSeric { 2145dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 21557fc6f17Seric if (tobuf[0] != '\0' && !bitnset(M_MUSER, m->m_flags)) 2165dfc646bSeric break; 2175dfc646bSeric 2185dfc646bSeric /* if already sent or not for this host, don't send */ 219ee4b0922Seric if (bitset(QDONTSEND|QBADADDR|QQUEUEUP, to->q_flags) || 220e103b48fSeric to->q_mailer != firstto->q_mailer || 221e103b48fSeric strcmp(hostsignature(to->q_mailer, to->q_host, e), firstsig) != 0) 2225dfc646bSeric continue; 2236259796dSeric 2244b22ea87Seric /* avoid overflowing tobuf */ 225aa50a568Sbostic if (sizeof tobuf < (strlen(to->q_paddr) + strlen(tobuf) + 2)) 2264b22ea87Seric break; 2274b22ea87Seric 2286ef48975Seric if (tTd(10, 1)) 229772e6e50Seric { 230772e6e50Seric printf("\nsend to "); 231772e6e50Seric printaddr(to, FALSE); 232772e6e50Seric } 233772e6e50Seric 2346259796dSeric /* compute effective uid/gid when sending */ 2357da1035fSeric if (to->q_mailer == ProgMailer) 2366259796dSeric ctladdr = getctladdr(to); 2376259796dSeric 2385dfc646bSeric user = to->q_user; 239588cad61Seric e->e_to = to->q_paddr; 24075f1ade9Seric if (tTd(10, 5)) 24175f1ade9Seric { 24275f1ade9Seric printf("deliver: QDONTSEND "); 24375f1ade9Seric printaddr(to, FALSE); 24475f1ade9Seric } 245ee4b0922Seric to->q_flags |= QDONTSEND; 2465dfc646bSeric 2475dfc646bSeric /* 2485dfc646bSeric ** Check to see that these people are allowed to 2495dfc646bSeric ** talk to each other. 2502a6e0786Seric */ 2512a6e0786Seric 25269582d2fSeric if (m->m_maxsize != 0 && e->e_msgsize > m->m_maxsize) 25369582d2fSeric { 25469582d2fSeric NoReturn = TRUE; 25508b25121Seric usrerr("552 Message is too large; %ld bytes max", m->m_maxsize); 25681161401Seric giveresponse(EX_UNAVAILABLE, m, NULL, e); 25769582d2fSeric continue; 25869582d2fSeric } 259fabb3bd4Seric rcode = checkcompat(to, e); 2601793c9c5Seric if (rcode != EX_OK) 2615dfc646bSeric { 26281161401Seric giveresponse(rcode, m, NULL, e); 2635dfc646bSeric continue; 2645dfc646bSeric } 2652a6e0786Seric 2662a6e0786Seric /* 2679ec9501bSeric ** Strip quote bits from names if the mailer is dumb 2689ec9501bSeric ** about them. 26925a99e2eSeric */ 27025a99e2eSeric 27157fc6f17Seric if (bitnset(M_STRIPQ, m->m_flags)) 27225a99e2eSeric { 2731d8f1806Seric stripquotes(user); 2741d8f1806Seric stripquotes(host); 27525a99e2eSeric } 27625a99e2eSeric 277cdb828c5Seric /* hack attack -- delivermail compatibility */ 278cdb828c5Seric if (m == ProgMailer && *user == '|') 279cdb828c5Seric user++; 280cdb828c5Seric 28125a99e2eSeric /* 2823efaed6eSeric ** If an error message has already been given, don't 2833efaed6eSeric ** bother to send to this address. 2843efaed6eSeric ** 2853efaed6eSeric ** >>>>>>>>>> This clause assumes that the local mailer 2863efaed6eSeric ** >> NOTE >> cannot do any further aliasing; that 2873efaed6eSeric ** >>>>>>>>>> function is subsumed by sendmail. 2883efaed6eSeric */ 2893efaed6eSeric 2906cae517dSeric if (bitset(QBADADDR|QQUEUEUP, to->q_flags)) 2913efaed6eSeric continue; 2923efaed6eSeric 293f2fec898Seric /* save statistics.... */ 294588cad61Seric markstats(e, to); 295f2fec898Seric 2963efaed6eSeric /* 29725a99e2eSeric ** See if this user name is "special". 29825a99e2eSeric ** If the user name has a slash in it, assume that this 29951552439Seric ** is a file -- send it off without further ado. Note 30051552439Seric ** that this type of addresses is not processed along 30151552439Seric ** with the others, so we fudge on the To person. 30225a99e2eSeric */ 30325a99e2eSeric 3042c017f8dSeric if (m == FileMailer) 30525a99e2eSeric { 306b31e7f2bSeric rcode = mailfile(user, getctladdr(to), e); 30781161401Seric giveresponse(rcode, m, NULL, e); 308dde5acadSeric if (rcode == EX_OK) 309dde5acadSeric to->q_flags |= QSENT; 3105dfc646bSeric continue; 31125a99e2eSeric } 31225a99e2eSeric 31313bbc08cSeric /* 31413bbc08cSeric ** Address is verified -- add this user to mailer 31513bbc08cSeric ** argv, and add it to the print list of recipients. 31613bbc08cSeric */ 31713bbc08cSeric 318508daeccSeric /* link together the chain of recipients */ 319508daeccSeric to->q_tchain = tochain; 320508daeccSeric tochain = to; 321508daeccSeric 3225dfc646bSeric /* create list of users for error messages */ 323db8841e9Seric (void) strcat(tobuf, ","); 324db8841e9Seric (void) strcat(tobuf, to->q_paddr); 325588cad61Seric define('u', user, e); /* to user */ 326588cad61Seric define('z', to->q_home, e); /* user's home */ 3275dfc646bSeric 328c579ef51Seric /* 329508daeccSeric ** Expand out this user into argument list. 330c579ef51Seric */ 331c579ef51Seric 332508daeccSeric if (!clever) 333c579ef51Seric { 334588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 3355dfc646bSeric *pvp++ = newstr(buf); 3365dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 3375dfc646bSeric { 3385dfc646bSeric /* allow some space for trailing parms */ 3395dfc646bSeric break; 3405dfc646bSeric } 3415dfc646bSeric } 342c579ef51Seric } 3435dfc646bSeric 344145b49b1Seric /* see if any addresses still exist */ 345145b49b1Seric if (tobuf[0] == '\0') 346c579ef51Seric { 347588cad61Seric define('g', (char *) NULL, e); 348145b49b1Seric return (0); 349c579ef51Seric } 350145b49b1Seric 3515dfc646bSeric /* print out messages as full list */ 35263780dbdSeric e->e_to = tobuf + 1; 3535dfc646bSeric 3545dfc646bSeric /* 3555dfc646bSeric ** Fill out any parameters after the $u parameter. 3565dfc646bSeric */ 3575dfc646bSeric 358c579ef51Seric while (!clever && *++mvp != NULL) 3595dfc646bSeric { 360588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 3615dfc646bSeric *pvp++ = newstr(buf); 3625dfc646bSeric if (pvp >= &pv[MAXPV]) 36308b25121Seric syserr("554 deliver: pv overflow after $u for %s", pv[0]); 3645dfc646bSeric } 3655dfc646bSeric *pvp++ = NULL; 3665dfc646bSeric 36725a99e2eSeric /* 36825a99e2eSeric ** Call the mailer. 3696328bdf7Seric ** The argument vector gets built, pipes 37025a99e2eSeric ** are created as necessary, and we fork & exec as 3716328bdf7Seric ** appropriate. 372c579ef51Seric ** If we are running SMTP, we just need to clean up. 37325a99e2eSeric */ 37425a99e2eSeric 3757ee87e5fSeric if (ctladdr == NULL && m != ProgMailer) 37686b26461Seric ctladdr = &e->e_from; 377134746fbSeric #ifdef NAMED_BIND 3782bcc6d2dSeric if (ConfigLevel < 2) 379912a731aSbostic _res.options &= ~(RES_DEFNAMES | RES_DNSRCH); /* XXX */ 380134746fbSeric #endif 381b31e7f2bSeric mci = openmailer(m, pv, ctladdr, clever, e); 382b31e7f2bSeric if (mci == NULL) 383134746fbSeric { 384b31e7f2bSeric /* catastrophic error */ 385845e533cSeric rcode = EX_OSERR; 386b31e7f2bSeric goto give_up; 387b31e7f2bSeric } 388b31e7f2bSeric else if (mci->mci_state != MCIS_OPEN) 389b31e7f2bSeric { 390b31e7f2bSeric /* couldn't open the mailer */ 391b31e7f2bSeric rcode = mci->mci_exitstat; 3922a6bc25bSeric errno = mci->mci_errno; 393b31e7f2bSeric if (rcode == EX_OK) 394b31e7f2bSeric { 395b31e7f2bSeric /* shouldn't happen */ 39608b25121Seric syserr("554 deliver: rcode=%d, mci_state=%d, sig=%s", 3976b0f339dSeric rcode, mci->mci_state, firstsig); 398b31e7f2bSeric rcode = EX_SOFTWARE; 399b31e7f2bSeric } 400b31e7f2bSeric } 401b31e7f2bSeric else if (!clever) 402b31e7f2bSeric { 403b31e7f2bSeric /* 404b31e7f2bSeric ** Format and send message. 405b31e7f2bSeric */ 40615d084d5Seric 407b31e7f2bSeric putfromline(mci->mci_out, m, e); 408b31e7f2bSeric (*e->e_puthdr)(mci->mci_out, m, e); 409b31e7f2bSeric putline("\n", mci->mci_out, m); 410b31e7f2bSeric (*e->e_putbody)(mci->mci_out, m, e); 411b31e7f2bSeric 412b31e7f2bSeric /* get the exit status */ 413*c9be6216Seric rcode = endmailer(mci, e, pv); 414134746fbSeric } 415134746fbSeric else 416b31e7f2bSeric #ifdef SMTP 417134746fbSeric { 418b31e7f2bSeric /* 419b31e7f2bSeric ** Send the MAIL FROM: protocol 420b31e7f2bSeric */ 42115d084d5Seric 422b31e7f2bSeric rcode = smtpmailfrom(m, mci, e); 423b31e7f2bSeric if (rcode == EX_OK) 42475889e88Seric { 425ded0d3daSkarels register char *t = tobuf; 426ded0d3daSkarels register int i; 427ded0d3daSkarels 428588cad61Seric /* send the recipient list */ 42963780dbdSeric tobuf[0] = '\0'; 43075889e88Seric for (to = tochain; to != NULL; to = to->q_tchain) 43175889e88Seric { 43263780dbdSeric e->e_to = to->q_paddr; 43315d084d5Seric if ((i = smtprcpt(to, m, mci, e)) != EX_OK) 43475889e88Seric { 43583b7ddc9Seric markfailure(e, to, i); 43681161401Seric giveresponse(i, m, mci, e); 43763780dbdSeric } 43875889e88Seric else 43975889e88Seric { 440911693bfSbostic *t++ = ','; 441b31e7f2bSeric for (p = to->q_paddr; *p; *t++ = *p++) 442b31e7f2bSeric continue; 443588cad61Seric } 444588cad61Seric } 445588cad61Seric 44663780dbdSeric /* now send the data */ 44763780dbdSeric if (tobuf[0] == '\0') 448b31e7f2bSeric { 44963780dbdSeric e->e_to = NULL; 450b31e7f2bSeric if (bitset(MCIF_CACHED, mci->mci_flags)) 451b31e7f2bSeric smtprset(m, mci, e); 452b31e7f2bSeric } 45375889e88Seric else 45475889e88Seric { 45563780dbdSeric e->e_to = tobuf + 1; 45675889e88Seric rcode = smtpdata(m, mci, e); 45763780dbdSeric } 45863780dbdSeric 45963780dbdSeric /* now close the connection */ 460b31e7f2bSeric if (!bitset(MCIF_CACHED, mci->mci_flags)) 46115d084d5Seric smtpquit(m, mci, e); 46263780dbdSeric } 463c579ef51Seric } 464b31e7f2bSeric #else /* not SMTP */ 465a05b3449Sbostic { 46608b25121Seric syserr("554 deliver: need SMTP compiled to use clever mailer"); 467845e533cSeric rcode = EX_CONFIG; 468b31e7f2bSeric goto give_up; 469a05b3449Sbostic } 470b31e7f2bSeric #endif /* SMTP */ 471134746fbSeric #ifdef NAMED_BIND 4722bcc6d2dSeric if (ConfigLevel < 2) 473912a731aSbostic _res.options |= RES_DEFNAMES | RES_DNSRCH; /* XXX */ 474134746fbSeric #endif 4755dfc646bSeric 476b31e7f2bSeric /* arrange a return receipt if requested */ 4778c13bf07Seric if (e->e_receiptto != NULL && bitnset(M_LOCALMAILER, m->m_flags)) 478b31e7f2bSeric { 479b31e7f2bSeric e->e_flags |= EF_SENDRECEIPT; 480b31e7f2bSeric /* do we want to send back more info? */ 481b31e7f2bSeric } 482b31e7f2bSeric 483c77d1c25Seric /* 48463780dbdSeric ** Do final status disposal. 48563780dbdSeric ** We check for something in tobuf for the SMTP case. 486c77d1c25Seric ** If we got a temporary failure, arrange to queue the 487c77d1c25Seric ** addressees. 488c77d1c25Seric */ 489c77d1c25Seric 490b31e7f2bSeric give_up: 49163780dbdSeric if (tobuf[0] != '\0') 49281161401Seric giveresponse(rcode, m, mci, e); 493772e6e50Seric for (to = tochain; to != NULL; to = to->q_tchain) 494b31e7f2bSeric { 495dde5acadSeric if (rcode != EX_OK) 49683b7ddc9Seric markfailure(e, to, rcode); 497dde5acadSeric else 498655518ecSeric { 499dde5acadSeric to->q_flags |= QSENT; 500655518ecSeric e->e_nsent++; 501655518ecSeric } 502b31e7f2bSeric } 503b31e7f2bSeric 504b31e7f2bSeric /* 505b31e7f2bSeric ** Restore state and return. 506b31e7f2bSeric */ 507c77d1c25Seric 50835490626Seric errno = 0; 509588cad61Seric define('g', (char *) NULL, e); 5105826d9d3Seric return (rcode); 51125a99e2eSeric } 5125dfc646bSeric /* 51383b7ddc9Seric ** MARKFAILURE -- mark a failure on a specific address. 51483b7ddc9Seric ** 51583b7ddc9Seric ** Parameters: 51683b7ddc9Seric ** e -- the envelope we are sending. 51783b7ddc9Seric ** q -- the address to mark. 51883b7ddc9Seric ** rcode -- the code signifying the particular failure. 51983b7ddc9Seric ** 52083b7ddc9Seric ** Returns: 52183b7ddc9Seric ** none. 52283b7ddc9Seric ** 52383b7ddc9Seric ** Side Effects: 52483b7ddc9Seric ** marks the address (and possibly the envelope) with the 52583b7ddc9Seric ** failure so that an error will be returned or 52683b7ddc9Seric ** the message will be queued, as appropriate. 52783b7ddc9Seric */ 52883b7ddc9Seric 52983b7ddc9Seric markfailure(e, q, rcode) 53083b7ddc9Seric register ENVELOPE *e; 53183b7ddc9Seric register ADDRESS *q; 53283b7ddc9Seric int rcode; 53383b7ddc9Seric { 53419c47125Seric char buf[MAXLINE]; 53519c47125Seric extern char *pintvl(); 53619c47125Seric 53783b7ddc9Seric if (rcode == EX_OK) 53883b7ddc9Seric return; 539ef137175Sbostic else if (rcode != EX_TEMPFAIL && rcode != EX_IOERR && rcode != EX_OSERR) 54083b7ddc9Seric q->q_flags |= QBADADDR; 54119c47125Seric else if (curtime() > e->e_ctime + TimeOuts.to_q_return) 54283b7ddc9Seric { 54383b7ddc9Seric if (!bitset(EF_TIMEOUT, e->e_flags)) 544198d9be0Seric { 545198d9be0Seric (void) sprintf(buf, "Cannot send message for %s", 54619c47125Seric pintvl(TimeOuts.to_q_return, FALSE)); 547198d9be0Seric if (e->e_message != NULL) 548198d9be0Seric free(e->e_message); 549198d9be0Seric e->e_message = newstr(buf); 55008b25121Seric message(buf); 551198d9be0Seric } 55283b7ddc9Seric q->q_flags |= QBADADDR; 55383b7ddc9Seric e->e_flags |= EF_TIMEOUT; 554c13b5dfcSeric fprintf(e->e_xfp, "421 %s... Message timed out\n", q->q_paddr); 55583b7ddc9Seric } 55683b7ddc9Seric else 55719c47125Seric { 55883b7ddc9Seric q->q_flags |= QQUEUEUP; 55919c47125Seric if (TimeOuts.to_q_warning > 0 && 56019c47125Seric curtime() > e->e_ctime + TimeOuts.to_q_warning) 56119c47125Seric { 56219c47125Seric if (!bitset(EF_WARNING, e->e_flags) && 56319c47125Seric e->e_class >= 0) 56419c47125Seric { 56519c47125Seric (void) sprintf(buf, 56619c47125Seric "warning: cannot send message for %s", 56719c47125Seric pintvl(TimeOuts.to_q_warning, FALSE)); 56819c47125Seric if (e->e_message != NULL) 56919c47125Seric free(e->e_message); 57019c47125Seric e->e_message = newstr(buf); 57119c47125Seric message(buf); 57219c47125Seric e->e_flags |= EF_WARNING|EF_TIMEOUT; 57319c47125Seric } 57419c47125Seric fprintf(e->e_xfp, 57519c47125Seric "%s... Warning: message still undelivered after %s\n", 57619c47125Seric q->q_paddr, pintvl(TimeOuts.to_q_warning, FALSE)); 57719c47125Seric fprintf(e->e_xfp, "Will keep trying until message is %s old\n", 57819c47125Seric pintvl(TimeOuts.to_q_return, FALSE)); 57919c47125Seric } 58019c47125Seric } 58183b7ddc9Seric } 58283b7ddc9Seric /* 58332d19d43Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 58432d19d43Seric ** 58532d19d43Seric ** This MUST be a macro, since after a vfork we are running 58632d19d43Seric ** two processes on the same stack!!! 58732d19d43Seric ** 58832d19d43Seric ** Parameters: 58932d19d43Seric ** none. 59032d19d43Seric ** 59132d19d43Seric ** Returns: 59232d19d43Seric ** From a macro??? You've got to be kidding! 59332d19d43Seric ** 59432d19d43Seric ** Side Effects: 59532d19d43Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 59632d19d43Seric ** pid of child in parent, zero in child. 59732d19d43Seric ** -1 on unrecoverable error. 59832d19d43Seric ** 59932d19d43Seric ** Notes: 60032d19d43Seric ** I'm awfully sorry this looks so awful. That's 60132d19d43Seric ** vfork for you..... 60232d19d43Seric */ 60332d19d43Seric 60432d19d43Seric # define NFORKTRIES 5 60584f7cd1bSeric 60684f7cd1bSeric # ifndef FORK 60784f7cd1bSeric # define FORK fork 60884f7cd1bSeric # endif 60932d19d43Seric 61032d19d43Seric # define DOFORK(fORKfN) \ 61132d19d43Seric {\ 61232d19d43Seric register int i;\ 61332d19d43Seric \ 61411799049Seric for (i = NFORKTRIES; --i >= 0; )\ 61532d19d43Seric {\ 61632d19d43Seric pid = fORKfN();\ 61732d19d43Seric if (pid >= 0)\ 61832d19d43Seric break;\ 61911799049Seric if (i > 0)\ 6206c4635f6Seric sleep((unsigned) NFORKTRIES - i);\ 62132d19d43Seric }\ 62232d19d43Seric } 62332d19d43Seric /* 6242ed72599Seric ** DOFORK -- simple fork interface to DOFORK. 6252ed72599Seric ** 6262ed72599Seric ** Parameters: 6272ed72599Seric ** none. 6282ed72599Seric ** 6292ed72599Seric ** Returns: 6302ed72599Seric ** pid of child in parent. 6312ed72599Seric ** zero in child. 6322ed72599Seric ** -1 on error. 6332ed72599Seric ** 6342ed72599Seric ** Side Effects: 6352ed72599Seric ** returns twice, once in parent and once in child. 6362ed72599Seric */ 6372ed72599Seric 6382ed72599Seric dofork() 6392ed72599Seric { 6402ed72599Seric register int pid; 6412ed72599Seric 6422ed72599Seric DOFORK(fork); 6432ed72599Seric return (pid); 6442ed72599Seric } 6452ed72599Seric /* 646c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 647c579ef51Seric ** 648c579ef51Seric ** We should never get fatal errors (e.g., segmentation 649c579ef51Seric ** violation), so we report those specially. For other 650c579ef51Seric ** errors, we choose a status message (into statmsg), 651c579ef51Seric ** and if it represents an error, we print it. 652c579ef51Seric ** 653c579ef51Seric ** Parameters: 654c579ef51Seric ** pid -- pid of mailer. 655*c9be6216Seric ** e -- the current envelope. 656*c9be6216Seric ** pv -- the parameter vector that invoked the mailer 657*c9be6216Seric ** (for error messages). 658c579ef51Seric ** 659c579ef51Seric ** Returns: 660c579ef51Seric ** exit code of mailer. 661c579ef51Seric ** 662c579ef51Seric ** Side Effects: 663c579ef51Seric ** none. 664c579ef51Seric */ 665c579ef51Seric 666*c9be6216Seric endmailer(mci, e, pv) 667b31e7f2bSeric register MCI *mci; 668*c9be6216Seric register ENVELOPE *e; 669*c9be6216Seric char **pv; 670c579ef51Seric { 671588cad61Seric int st; 672c579ef51Seric 67375889e88Seric /* close any connections */ 67475889e88Seric if (mci->mci_in != NULL) 675*c9be6216Seric (void) xfclose(mci->mci_in, pv[0], "mci_in"); 67675889e88Seric if (mci->mci_out != NULL) 677*c9be6216Seric (void) xfclose(mci->mci_out, pv[0], "mci_out"); 67875889e88Seric mci->mci_in = mci->mci_out = NULL; 67975889e88Seric mci->mci_state = MCIS_CLOSED; 68075889e88Seric 68133db8731Seric /* in the IPC case there is nothing to wait for */ 68275889e88Seric if (mci->mci_pid == 0) 68333db8731Seric return (EX_OK); 68433db8731Seric 68533db8731Seric /* wait for the mailer process to die and collect status */ 68675889e88Seric st = waitfor(mci->mci_pid); 687588cad61Seric if (st == -1) 68878de67c1Seric { 689*c9be6216Seric syserr("endmailer %s: wait", pv[0]); 690588cad61Seric return (EX_SOFTWARE); 691c579ef51Seric } 69233db8731Seric 69333db8731Seric /* see if it died a horrid death */ 694c579ef51Seric if ((st & 0377) != 0) 695c579ef51Seric { 696*c9be6216Seric syserr("mailer %s died with signal %o", pv[0], st); 697*c9be6216Seric 698*c9be6216Seric /* log the arguments */ 699*c9be6216Seric if (e->e_xfp != NULL) 700*c9be6216Seric { 701*c9be6216Seric register char **av; 702*c9be6216Seric 703*c9be6216Seric fprintf(e->e_xfp, "Arguments:"); 704*c9be6216Seric for (av = pv; *av != NULL; av++) 705*c9be6216Seric fprintf(e->e_xfp, " %s", *av); 706*c9be6216Seric fprintf(e->e_xfp, "\n"); 707*c9be6216Seric } 708*c9be6216Seric 7095f73204aSeric ExitStat = EX_TEMPFAIL; 7105f73204aSeric return (EX_TEMPFAIL); 711c579ef51Seric } 71233db8731Seric 71333db8731Seric /* normal death -- return status */ 714588cad61Seric st = (st >> 8) & 0377; 715588cad61Seric return (st); 716c579ef51Seric } 717c579ef51Seric /* 718c579ef51Seric ** OPENMAILER -- open connection to mailer. 719c579ef51Seric ** 720c579ef51Seric ** Parameters: 721c579ef51Seric ** m -- mailer descriptor. 722c579ef51Seric ** pvp -- parameter vector to pass to mailer. 723c579ef51Seric ** ctladdr -- controlling address for user. 724c579ef51Seric ** clever -- create a full duplex connection. 725c579ef51Seric ** 726c579ef51Seric ** Returns: 72775889e88Seric ** The mail connection info struct for this connection. 72875889e88Seric ** NULL on failure. 729c579ef51Seric ** 730c579ef51Seric ** Side Effects: 731c579ef51Seric ** creates a mailer in a subprocess. 732c579ef51Seric */ 733c579ef51Seric 734b31e7f2bSeric MCI * 735b31e7f2bSeric openmailer(m, pvp, ctladdr, clever, e) 736588cad61Seric MAILER *m; 737c579ef51Seric char **pvp; 738c579ef51Seric ADDRESS *ctladdr; 739c579ef51Seric bool clever; 740b31e7f2bSeric ENVELOPE *e; 741c579ef51Seric { 7425dfc646bSeric int pid; 743b31e7f2bSeric register MCI *mci; 744f8952a83Seric int mpvect[2]; 745c579ef51Seric int rpvect[2]; 7465dfc646bSeric extern FILE *fdopen(); 7475dfc646bSeric 7486ef48975Seric if (tTd(11, 1)) 7495dfc646bSeric { 7508c57e552Seric printf("openmailer:"); 7515dfc646bSeric printav(pvp); 7525dfc646bSeric } 75335490626Seric errno = 0; 7545dfc646bSeric 755ef66a9d0Seric CurHostName = m->m_mailer; 756ef66a9d0Seric 75733db8731Seric /* 75833db8731Seric ** Deal with the special case of mail handled through an IPC 75933db8731Seric ** connection. 76033db8731Seric ** In this case we don't actually fork. We must be 76133db8731Seric ** running SMTP for this to work. We will return a 76233db8731Seric ** zero pid to indicate that we are running IPC. 763e7c1bd78Seric ** We also handle a debug version that just talks to stdin/out. 76433db8731Seric */ 76533db8731Seric 766e7c1bd78Seric /* check for Local Person Communication -- not for mortals!!! */ 767e7c1bd78Seric if (strcmp(m->m_mailer, "[LPC]") == 0) 768e7c1bd78Seric { 769b31e7f2bSeric mci = (MCI *) xalloc(sizeof *mci); 7702a087e90Seric bzero((char *) mci, sizeof *mci); 77175889e88Seric mci->mci_in = stdin; 77275889e88Seric mci->mci_out = stdout; 773b31e7f2bSeric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 77415d084d5Seric mci->mci_mailer = m; 775e7c1bd78Seric } 776b31e7f2bSeric else if (strcmp(m->m_mailer, "[IPC]") == 0 || 777914346b1Seric strcmp(m->m_mailer, "[TCP]") == 0) 77833db8731Seric { 77984f7cd1bSeric #ifdef DAEMON 780e103b48fSeric register int i; 7811277f9a8Seric register u_short port; 782e103b48fSeric char *curhost; 783b31e7f2bSeric extern MCI *mci_get(); 784e103b48fSeric extern char *hostsignature(); 78533db8731Seric 786ef66a9d0Seric CurHostName = pvp[1]; 787e103b48fSeric curhost = hostsignature(m, pvp[1], e); 788b31e7f2bSeric 78978bfb85bSeric if (curhost == NULL || curhost[0] == '\0') 79078bfb85bSeric { 79178bfb85bSeric syserr("null signature"); 79278bfb85bSeric return NULL; 79378bfb85bSeric } 79478bfb85bSeric 79533db8731Seric if (!clever) 79678bfb85bSeric { 79708b25121Seric syserr("554 non-clever IPC"); 79878bfb85bSeric return NULL; 79978bfb85bSeric } 80093b6e3cfSeric if (pvp[2] != NULL) 8011277f9a8Seric port = atoi(pvp[2]); 80293b6e3cfSeric else 8031277f9a8Seric port = 0; 804e103b48fSeric while (*curhost != '\0') 805ebc61751Sbloom { 806e103b48fSeric register char *p; 8077d55540cSeric static char hostbuf[MAXNAME]; 808e103b48fSeric 809e103b48fSeric /* pull the next host from the signature */ 810e103b48fSeric p = strchr(curhost, ':'); 811e103b48fSeric if (p == NULL) 812e103b48fSeric p = &curhost[strlen(curhost)]; 813e103b48fSeric strncpy(hostbuf, curhost, p - curhost); 814e103b48fSeric hostbuf[p - curhost] = '\0'; 815e103b48fSeric if (*p != '\0') 816e103b48fSeric p++; 817e103b48fSeric curhost = p; 818e103b48fSeric 81945a8316eSeric /* see if we already know that this host is fried */ 820e103b48fSeric CurHostName = hostbuf; 821e103b48fSeric mci = mci_get(hostbuf, m); 822b31e7f2bSeric if (mci->mci_state != MCIS_CLOSED) 8231fa7c2ebSeric { 8241fa7c2ebSeric if (tTd(11, 1)) 8251fa7c2ebSeric { 8261fa7c2ebSeric printf("openmailer: "); 8271fa7c2ebSeric mci_dump(mci); 8281fa7c2ebSeric } 82967088a9dSeric CurHostName = mci->mci_host; 83075889e88Seric return mci; 8311fa7c2ebSeric } 83215d084d5Seric mci->mci_mailer = m; 833b31e7f2bSeric if (mci->mci_exitstat != EX_OK) 834b31e7f2bSeric continue; 835b31e7f2bSeric 83675889e88Seric /* try the connection */ 837e103b48fSeric setproctitle("%s %s: %s", e->e_id, hostbuf, "user open"); 83808b25121Seric message("Connecting to %s (%s)...", 839e103b48fSeric hostbuf, m->m_name); 840e103b48fSeric i = makeconnection(hostbuf, port, mci, 841914346b1Seric bitnset(M_SECURE_PORT, m->m_flags)); 84275889e88Seric mci->mci_exitstat = i; 84375889e88Seric mci->mci_errno = errno; 84475889e88Seric if (i == EX_OK) 845b31e7f2bSeric { 846b31e7f2bSeric mci->mci_state = MCIS_OPENING; 847b31e7f2bSeric mci_cache(mci); 848b31e7f2bSeric break; 849b31e7f2bSeric } 850b31e7f2bSeric else if (tTd(11, 1)) 851b31e7f2bSeric printf("openmailer: makeconnection => stat=%d, errno=%d\n", 852b31e7f2bSeric i, errno); 853b31e7f2bSeric 85475889e88Seric 8555f73204aSeric /* enter status of this host */ 85675889e88Seric setstat(i); 857ed854c7bSeric } 8582a087e90Seric mci->mci_pid = 0; 859b31e7f2bSeric #else /* no DAEMON */ 86008b25121Seric syserr("554 openmailer: no IPC"); 8611fa7c2ebSeric if (tTd(11, 1)) 8621fa7c2ebSeric printf("openmailer: NULL\n"); 86375889e88Seric return NULL; 864b31e7f2bSeric #endif /* DAEMON */ 865588cad61Seric } 866b31e7f2bSeric else 867b31e7f2bSeric { 8686328bdf7Seric /* create a pipe to shove the mail through */ 869f8952a83Seric if (pipe(mpvect) < 0) 87025a99e2eSeric { 871588cad61Seric syserr("openmailer: pipe (to mailer)"); 8721fa7c2ebSeric if (tTd(11, 1)) 8731fa7c2ebSeric printf("openmailer: NULL\n"); 87475889e88Seric return NULL; 87525a99e2eSeric } 876c579ef51Seric 877c579ef51Seric /* if this mailer speaks smtp, create a return pipe */ 878c579ef51Seric if (clever && pipe(rpvect) < 0) 879c579ef51Seric { 880588cad61Seric syserr("openmailer: pipe (from mailer)"); 881c579ef51Seric (void) close(mpvect[0]); 882c579ef51Seric (void) close(mpvect[1]); 8831fa7c2ebSeric if (tTd(11, 1)) 8841fa7c2ebSeric printf("openmailer: NULL\n"); 88575889e88Seric return NULL; 886c579ef51Seric } 887c579ef51Seric 88833db8731Seric /* 88933db8731Seric ** Actually fork the mailer process. 89033db8731Seric ** DOFORK is clever about retrying. 8916984bfddSeric ** 8926984bfddSeric ** Dispose of SIGCHLD signal catchers that may be laying 8936984bfddSeric ** around so that endmail will get it. 89433db8731Seric */ 89533db8731Seric 896b31e7f2bSeric if (e->e_xfp != NULL) 897b31e7f2bSeric (void) fflush(e->e_xfp); /* for debugging */ 898588cad61Seric (void) fflush(stdout); 8996984bfddSeric # ifdef SIGCHLD 9006984bfddSeric (void) signal(SIGCHLD, SIG_DFL); 9016c2c3107Seric # endif /* SIGCHLD */ 90284f7cd1bSeric DOFORK(FORK); 903f129ec7dSeric /* pid is set by DOFORK */ 90425a99e2eSeric if (pid < 0) 90525a99e2eSeric { 90633db8731Seric /* failure */ 907588cad61Seric syserr("openmailer: cannot fork"); 908f8952a83Seric (void) close(mpvect[0]); 909f8952a83Seric (void) close(mpvect[1]); 910c579ef51Seric if (clever) 911c579ef51Seric { 912c579ef51Seric (void) close(rpvect[0]); 913c579ef51Seric (void) close(rpvect[1]); 914c579ef51Seric } 9151fa7c2ebSeric if (tTd(11, 1)) 9161fa7c2ebSeric printf("openmailer: NULL\n"); 91775889e88Seric return NULL; 91825a99e2eSeric } 91925a99e2eSeric else if (pid == 0) 92025a99e2eSeric { 92113088b9fSeric int i; 922dafbc479Seric int saveerrno; 92380c5307eSeric char **ep; 92480c5307eSeric char *env[MAXUSERENVIRON]; 92580c5307eSeric extern char **environ; 9265f73204aSeric extern int DtableSize; 92713088b9fSeric 92825a99e2eSeric /* child -- set up input & exec mailer */ 92903ab8e55Seric /* make diagnostic output be standard output */ 9308f0e7860Seric (void) signal(SIGINT, SIG_IGN); 9318f0e7860Seric (void) signal(SIGHUP, SIG_IGN); 9320984da9fSeric (void) signal(SIGTERM, SIG_DFL); 933f8952a83Seric 9341caa9a59Seric /* close any other cached connections */ 9351caa9a59Seric mci_flush(FALSE, mci); 9361caa9a59Seric 937b31e7f2bSeric /* arrange to filter std & diag output of command */ 938c579ef51Seric if (clever) 939c579ef51Seric { 940c579ef51Seric (void) close(rpvect[0]); 94165886f3dSeric (void) dup2(rpvect[1], STDOUT_FILENO); 942c579ef51Seric (void) close(rpvect[1]); 943c579ef51Seric } 944276723a8Seric else if (OpMode == MD_SMTP || HoldErrs) 945f8952a83Seric { 946588cad61Seric /* put mailer output in transcript */ 94765886f3dSeric (void) dup2(fileno(e->e_xfp), STDOUT_FILENO); 948f8952a83Seric } 94965886f3dSeric (void) dup2(STDOUT_FILENO, STDERR_FILENO); 950f8952a83Seric 951f8952a83Seric /* arrange to get standard input */ 952f8952a83Seric (void) close(mpvect[1]); 95365886f3dSeric if (dup2(mpvect[0], STDIN_FILENO) < 0) 95425a99e2eSeric { 95525a99e2eSeric syserr("Cannot dup to zero!"); 956a590b978Seric _exit(EX_OSERR); 95725a99e2eSeric } 958f8952a83Seric (void) close(mpvect[0]); 95957fc6f17Seric if (!bitnset(M_RESTR, m->m_flags)) 9600984da9fSeric { 96153e3fa05Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 962e36b99e2Seric { 963e36b99e2Seric (void) setgid(DefGid); 964898a126bSbostic (void) initgroups(DefUser, DefGid); 965e36b99e2Seric (void) setuid(DefUid); 966e36b99e2Seric } 967e36b99e2Seric else 96869f29479Seric { 969e36b99e2Seric (void) setgid(ctladdr->q_gid); 970898a126bSbostic (void) initgroups(ctladdr->q_ruser? 971898a126bSbostic ctladdr->q_ruser: ctladdr->q_user, 972898a126bSbostic ctladdr->q_gid); 973e36b99e2Seric (void) setuid(ctladdr->q_uid); 97469f29479Seric } 9750984da9fSeric } 976588cad61Seric 97713088b9fSeric /* arrange for all the files to be closed */ 978b31e7f2bSeric for (i = 3; i < DtableSize; i++) 979b31e7f2bSeric { 980fccb3f7aSbostic register int j; 981fccb3f7aSbostic if ((j = fcntl(i, F_GETFD, 0)) != -1) 982fccb3f7aSbostic (void)fcntl(i, F_SETFD, j|1); 983fccb3f7aSbostic } 98433db8731Seric 98580c5307eSeric /* set up the mailer environment */ 98680c5307eSeric i = 0; 98780c5307eSeric env[i++] = "AGENT=sendmail"; 98880c5307eSeric for (ep = environ; *ep != NULL; ep++) 98980c5307eSeric { 99080c5307eSeric if (strncmp(*ep, "TZ=", 3) == 0) 99180c5307eSeric env[i++] = *ep; 99280c5307eSeric } 99380c5307eSeric env[i++] = NULL; 99480c5307eSeric 99533db8731Seric /* try to execute the mailer */ 996d7a0480eSeric execve(m->m_mailer, pvp, env); 997dafbc479Seric saveerrno = errno; 99813088b9fSeric syserr("Cannot exec %s", m->m_mailer); 99995b76e4bSeric if (m == LocalMailer) 100055f33c03Seric _exit(EX_TEMPFAIL); 1001e2de2524Seric if (transienterror(saveerrno)) 100295b76e4bSeric _exit(EX_TEMPFAIL); 1003a590b978Seric _exit(EX_UNAVAILABLE); 100425a99e2eSeric } 100525a99e2eSeric 1006f8952a83Seric /* 1007c579ef51Seric ** Set up return value. 1008f8952a83Seric */ 1009f8952a83Seric 1010b31e7f2bSeric mci = (MCI *) xalloc(sizeof *mci); 10112a087e90Seric bzero((char *) mci, sizeof *mci); 101215d084d5Seric mci->mci_mailer = m; 1013b31e7f2bSeric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 10142a087e90Seric mci->mci_pid = pid; 1015f8952a83Seric (void) close(mpvect[0]); 101675889e88Seric mci->mci_out = fdopen(mpvect[1], "w"); 1017c579ef51Seric if (clever) 101825a99e2eSeric { 1019c579ef51Seric (void) close(rpvect[1]); 102075889e88Seric mci->mci_in = fdopen(rpvect[0], "r"); 102175889e88Seric } 102275889e88Seric else 102375889e88Seric { 102475889e88Seric mci->mci_flags |= MCIF_TEMP; 102575889e88Seric mci->mci_in = NULL; 102675889e88Seric } 1027b31e7f2bSeric } 1028b31e7f2bSeric 1029b31e7f2bSeric /* 1030b31e7f2bSeric ** If we are in SMTP opening state, send initial protocol. 1031b31e7f2bSeric */ 1032b31e7f2bSeric 1033b31e7f2bSeric if (clever && mci->mci_state != MCIS_CLOSED) 1034b31e7f2bSeric { 1035b31e7f2bSeric smtpinit(m, mci, e); 1036b31e7f2bSeric } 10371fa7c2ebSeric if (tTd(11, 1)) 10381fa7c2ebSeric { 10391fa7c2ebSeric printf("openmailer: "); 10401fa7c2ebSeric mci_dump(mci); 10411fa7c2ebSeric } 1042c579ef51Seric 104375889e88Seric return mci; 104425a99e2eSeric } 104525a99e2eSeric /* 104625a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 104725a99e2eSeric ** 104825a99e2eSeric ** Parameters: 104925a99e2eSeric ** stat -- the status code from the mailer (high byte 105025a99e2eSeric ** only; core dumps must have been taken care of 105125a99e2eSeric ** already). 105281161401Seric ** m -- the mailer info for this mailer. 105381161401Seric ** mci -- the mailer connection info -- can be NULL if the 105481161401Seric ** response is given before the connection is made. 105581161401Seric ** e -- the current envelope. 105625a99e2eSeric ** 105725a99e2eSeric ** Returns: 1058db8841e9Seric ** none. 105925a99e2eSeric ** 106025a99e2eSeric ** Side Effects: 1061c1f9df2cSeric ** Errors may be incremented. 106225a99e2eSeric ** ExitStat may be set. 106325a99e2eSeric */ 106425a99e2eSeric 106581161401Seric giveresponse(stat, m, mci, e) 106625a99e2eSeric int stat; 1067588cad61Seric register MAILER *m; 106881161401Seric register MCI *mci; 1069198d9be0Seric ENVELOPE *e; 107025a99e2eSeric { 107125a99e2eSeric register char *statmsg; 107225a99e2eSeric extern char *SysExMsg[]; 107325a99e2eSeric register int i; 1074d4bd8f0eSbostic extern int N_SysEx; 1075d4bd8f0eSbostic #ifdef NAMED_BIND 1076d4bd8f0eSbostic extern int h_errno; 1077d4bd8f0eSbostic #endif 1078198d9be0Seric char buf[MAXLINE]; 10797d55540cSeric extern char *errstring(); 108025a99e2eSeric 108113bbc08cSeric /* 108213bbc08cSeric ** Compute status message from code. 108313bbc08cSeric */ 108413bbc08cSeric 108525a99e2eSeric i = stat - EX__BASE; 1086588cad61Seric if (stat == 0) 1087588cad61Seric statmsg = "250 Sent"; 1088588cad61Seric else if (i < 0 || i > N_SysEx) 1089588cad61Seric { 1090588cad61Seric (void) sprintf(buf, "554 unknown mailer error %d", stat); 1091588cad61Seric stat = EX_UNAVAILABLE; 1092588cad61Seric statmsg = buf; 1093588cad61Seric } 1094198d9be0Seric else if (stat == EX_TEMPFAIL) 1095198d9be0Seric { 10967d55540cSeric (void) strcpy(buf, SysExMsg[i] + 1); 1097d4bd8f0eSbostic #ifdef NAMED_BIND 1098f28da541Smiriam if (h_errno == TRY_AGAIN) 1099f28da541Smiriam statmsg = errstring(h_errno+MAX_ERRNO); 1100f28da541Smiriam else 1101d4bd8f0eSbostic #endif 1102f28da541Smiriam { 11038557d168Seric if (errno != 0) 1104d87e85f3Seric statmsg = errstring(errno); 1105d87e85f3Seric else 1106d87e85f3Seric { 1107d87e85f3Seric #ifdef SMTP 1108d87e85f3Seric extern char SmtpError[]; 1109d87e85f3Seric 1110d87e85f3Seric statmsg = SmtpError; 11116c2c3107Seric #else /* SMTP */ 1112d87e85f3Seric statmsg = NULL; 11136c2c3107Seric #endif /* SMTP */ 1114d87e85f3Seric } 1115f28da541Smiriam } 1116d87e85f3Seric if (statmsg != NULL && statmsg[0] != '\0') 1117d87e85f3Seric { 111887c9b3e7Seric (void) strcat(buf, ": "); 1119d87e85f3Seric (void) strcat(buf, statmsg); 11208557d168Seric } 1121198d9be0Seric statmsg = buf; 1122198d9be0Seric } 112325a99e2eSeric else 1124d87e85f3Seric { 112525a99e2eSeric statmsg = SysExMsg[i]; 11267d55540cSeric if (*statmsg++ == ':') 11277d55540cSeric { 11287d55540cSeric (void) sprintf(buf, "%s: %s", statmsg, errstring(errno)); 11297d55540cSeric statmsg = buf; 11307d55540cSeric } 1131d87e85f3Seric } 1132588cad61Seric 1133588cad61Seric /* 1134588cad61Seric ** Print the message as appropriate 1135588cad61Seric */ 1136588cad61Seric 1137198d9be0Seric if (stat == EX_OK || stat == EX_TEMPFAIL) 1138e12d03eeSeric message(&statmsg[4], errstring(errno)); 113925a99e2eSeric else 114025a99e2eSeric { 1141c1f9df2cSeric Errors++; 1142e12d03eeSeric usrerr(statmsg, errstring(errno)); 114325a99e2eSeric } 114425a99e2eSeric 114525a99e2eSeric /* 114625a99e2eSeric ** Final cleanup. 114725a99e2eSeric ** Log a record of the transaction. Compute the new 114825a99e2eSeric ** ExitStat -- if we already had an error, stick with 114925a99e2eSeric ** that. 115025a99e2eSeric */ 115125a99e2eSeric 11522f624c86Seric if (LogLevel > ((stat == EX_TEMPFAIL) ? 8 : (stat == EX_OK) ? 7 : 6)) 115381161401Seric logdelivery(m, mci, &statmsg[4], e); 1154eb238f8cSeric 1155eb238f8cSeric if (stat != EX_TEMPFAIL) 1156eb238f8cSeric setstat(stat); 1157198d9be0Seric if (stat != EX_OK) 1158198d9be0Seric { 1159198d9be0Seric if (e->e_message != NULL) 1160198d9be0Seric free(e->e_message); 1161198d9be0Seric e->e_message = newstr(&statmsg[4]); 1162198d9be0Seric } 11638557d168Seric errno = 0; 1164d4bd8f0eSbostic #ifdef NAMED_BIND 1165f28da541Smiriam h_errno = 0; 1166d4bd8f0eSbostic #endif 1167eb238f8cSeric } 1168eb238f8cSeric /* 1169eb238f8cSeric ** LOGDELIVERY -- log the delivery in the system log 1170eb238f8cSeric ** 1171eb238f8cSeric ** Parameters: 117281161401Seric ** m -- the mailer info. Can be NULL for initial queue. 117381161401Seric ** mci -- the mailer connection info -- can be NULL if the 117481161401Seric ** log is occuring when no connection is active. 117581161401Seric ** stat -- the message to print for the status. 117681161401Seric ** e -- the current envelope. 1177eb238f8cSeric ** 1178eb238f8cSeric ** Returns: 1179eb238f8cSeric ** none 1180eb238f8cSeric ** 1181eb238f8cSeric ** Side Effects: 1182eb238f8cSeric ** none 1183eb238f8cSeric */ 1184eb238f8cSeric 118581161401Seric logdelivery(m, mci, stat, e) 118681161401Seric MAILER *m; 118781161401Seric register MCI *mci; 1188eb238f8cSeric char *stat; 1189b31e7f2bSeric register ENVELOPE *e; 11905cf56be3Seric { 1191eb238f8cSeric # ifdef LOG 11929507d1f9Seric char *curhost; 1193d6acf3eeSeric char buf[512]; 11949507d1f9Seric extern char *pintvl(); 11959507d1f9Seric extern char *macvalue(); 11969507d1f9Seric 119748ed5d33Seric (void) sprintf(buf, "delay=%s", pintvl(curtime() - e->e_ctime, TRUE)); 119881161401Seric 119948ed5d33Seric if (m != NULL) 120071ff6caaSeric { 120148ed5d33Seric (void) strcat(buf, ", mailer="); 120248ed5d33Seric (void) strcat(buf, m->m_name); 120371ff6caaSeric } 120448ed5d33Seric 120548ed5d33Seric if (mci != NULL && mci->mci_host != NULL) 120671ff6caaSeric { 120771ff6caaSeric # ifdef DAEMON 1208e2f2f828Seric extern SOCKADDR CurHostAddr; 1209e2f2f828Seric extern char *anynet_ntoa(); 121048ed5d33Seric # endif 121171ff6caaSeric 121248ed5d33Seric (void) strcat(buf, ", relay="); 121348ed5d33Seric (void) strcat(buf, mci->mci_host); 121448ed5d33Seric 121548ed5d33Seric # ifdef DAEMON 121648ed5d33Seric (void) strcat(buf, " ("); 1217e2f2f828Seric (void) strcat(buf, anynet_ntoa(&CurHostAddr)); 121848ed5d33Seric (void) strcat(buf, ")"); 121971ff6caaSeric # endif 122071ff6caaSeric } 12219507d1f9Seric else 122248ed5d33Seric { 122348ed5d33Seric char *p = macvalue('h', e); 12249507d1f9Seric 122548ed5d33Seric if (p != NULL && p[0] != '\0') 122648ed5d33Seric { 122748ed5d33Seric (void) strcat(buf, ", relay="); 122848ed5d33Seric (void) strcat(buf, p); 122948ed5d33Seric } 123048ed5d33Seric } 1231d6acf3eeSeric 1232d6acf3eeSeric syslog(LOG_INFO, "%s: to=%s, %s, stat=%s", 1233d6acf3eeSeric e->e_id, e->e_to, buf, stat); 12346c2c3107Seric # endif /* LOG */ 123525a99e2eSeric } 123625a99e2eSeric /* 123751552439Seric ** PUTFROMLINE -- output a UNIX-style from line (or whatever) 123825a99e2eSeric ** 123951552439Seric ** This can be made an arbitrary message separator by changing $l 124051552439Seric ** 12419b6c17a6Seric ** One of the ugliest hacks seen by human eyes is contained herein: 12429b6c17a6Seric ** UUCP wants those stupid "remote from <host>" lines. Why oh why 12439b6c17a6Seric ** does a well-meaning programmer such as myself have to deal with 12449b6c17a6Seric ** this kind of antique garbage???? 124525a99e2eSeric ** 124625a99e2eSeric ** Parameters: 124751552439Seric ** fp -- the file to output to. 124851552439Seric ** m -- the mailer describing this entry. 124925a99e2eSeric ** 125025a99e2eSeric ** Returns: 125151552439Seric ** none 125225a99e2eSeric ** 125325a99e2eSeric ** Side Effects: 125451552439Seric ** outputs some text to fp. 125525a99e2eSeric */ 125625a99e2eSeric 1257b31e7f2bSeric putfromline(fp, m, e) 125851552439Seric register FILE *fp; 125951552439Seric register MAILER *m; 1260b31e7f2bSeric ENVELOPE *e; 126125a99e2eSeric { 12622bc47524Seric char *template = "\201l\n"; 126351552439Seric char buf[MAXLINE]; 126425a99e2eSeric 126557fc6f17Seric if (bitnset(M_NHDR, m->m_flags)) 126651552439Seric return; 126713bbc08cSeric 12682c7e1b8dSeric # ifdef UGLYUUCP 126957fc6f17Seric if (bitnset(M_UGLYUUCP, m->m_flags)) 127074b6e67bSeric { 1271ea09d6edSeric char *bang; 1272ea09d6edSeric char xbuf[MAXLINE]; 127374b6e67bSeric 1274ee4b0922Seric expand("\201g", buf, &buf[sizeof buf - 1], e); 12756c2c3107Seric bang = strchr(buf, '!'); 127674b6e67bSeric if (bang == NULL) 127708b25121Seric syserr("554 No ! in UUCP! (%s)", buf); 127874b6e67bSeric else 1279588cad61Seric { 1280ea09d6edSeric *bang++ = '\0'; 12812bc47524Seric (void) sprintf(xbuf, "From %s \201d remote from %s\n", bang, buf); 1282ea09d6edSeric template = xbuf; 128374b6e67bSeric } 1284588cad61Seric } 12856c2c3107Seric # endif /* UGLYUUCP */ 1286b31e7f2bSeric expand(template, buf, &buf[sizeof buf - 1], e); 128777b52738Seric putline(buf, fp, m); 1288bc6e2962Seric } 1289bc6e2962Seric /* 129051552439Seric ** PUTBODY -- put the body of a message. 129151552439Seric ** 129251552439Seric ** Parameters: 129351552439Seric ** fp -- file to output onto. 129477b52738Seric ** m -- a mailer descriptor to control output format. 12959a6a5f55Seric ** e -- the envelope to put out. 129651552439Seric ** 129751552439Seric ** Returns: 129851552439Seric ** none. 129951552439Seric ** 130051552439Seric ** Side Effects: 130151552439Seric ** The message is written onto fp. 130251552439Seric */ 130351552439Seric 130477b52738Seric putbody(fp, m, e) 130551552439Seric FILE *fp; 1306588cad61Seric MAILER *m; 13079a6a5f55Seric register ENVELOPE *e; 130851552439Seric { 130977b52738Seric char buf[MAXLINE]; 131051552439Seric 131151552439Seric /* 131251552439Seric ** Output the body of the message 131351552439Seric */ 131451552439Seric 13159a6a5f55Seric if (e->e_dfp == NULL) 131651552439Seric { 13179a6a5f55Seric if (e->e_df != NULL) 13189a6a5f55Seric { 13199a6a5f55Seric e->e_dfp = fopen(e->e_df, "r"); 13209a6a5f55Seric if (e->e_dfp == NULL) 13218f9146b0Srick syserr("putbody: Cannot open %s for %s from %s", 13228f9146b0Srick e->e_df, e->e_to, e->e_from); 13239a6a5f55Seric } 13249a6a5f55Seric else 132577b52738Seric putline("<<< No Message Collected >>>", fp, m); 13269a6a5f55Seric } 13279a6a5f55Seric if (e->e_dfp != NULL) 13289a6a5f55Seric { 13299a6a5f55Seric rewind(e->e_dfp); 133077b52738Seric while (!ferror(fp) && fgets(buf, sizeof buf, e->e_dfp) != NULL) 133124fc8aeeSeric { 133224fc8aeeSeric if (buf[0] == 'F' && bitnset(M_ESCFROM, m->m_flags) && 1333d6fa2b58Sbostic strncmp(buf, "From ", 5) == 0) 13343462ad9eSeric (void) putc('>', fp); 133577b52738Seric putline(buf, fp, m); 133624fc8aeeSeric } 133751552439Seric 13389a6a5f55Seric if (ferror(e->e_dfp)) 133951552439Seric { 134051552439Seric syserr("putbody: read error"); 134151552439Seric ExitStat = EX_IOERR; 134251552439Seric } 134351552439Seric } 134451552439Seric 134551552439Seric (void) fflush(fp); 134651552439Seric if (ferror(fp) && errno != EPIPE) 134751552439Seric { 134851552439Seric syserr("putbody: write error"); 134951552439Seric ExitStat = EX_IOERR; 135051552439Seric } 135151552439Seric errno = 0; 135225a99e2eSeric } 135325a99e2eSeric /* 135425a99e2eSeric ** MAILFILE -- Send a message to a file. 135525a99e2eSeric ** 1356f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 1357f129ec7dSeric ** bits, sendmail will try to become the owner of that file 1358f129ec7dSeric ** rather than the real user. Obviously, this only works if 1359f129ec7dSeric ** sendmail runs as root. 1360f129ec7dSeric ** 1361588cad61Seric ** This could be done as a subordinate mailer, except that it 1362588cad61Seric ** is used implicitly to save messages in ~/dead.letter. We 1363588cad61Seric ** view this as being sufficiently important as to include it 1364588cad61Seric ** here. For example, if the system is dying, we shouldn't have 1365588cad61Seric ** to create another process plus some pipes to save the message. 1366588cad61Seric ** 136725a99e2eSeric ** Parameters: 136825a99e2eSeric ** filename -- the name of the file to send to. 13696259796dSeric ** ctladdr -- the controlling address header -- includes 13706259796dSeric ** the userid/groupid to be when sending. 137125a99e2eSeric ** 137225a99e2eSeric ** Returns: 137325a99e2eSeric ** The exit code associated with the operation. 137425a99e2eSeric ** 137525a99e2eSeric ** Side Effects: 137625a99e2eSeric ** none. 137725a99e2eSeric */ 137825a99e2eSeric 1379b31e7f2bSeric mailfile(filename, ctladdr, e) 138025a99e2eSeric char *filename; 13816259796dSeric ADDRESS *ctladdr; 1382b31e7f2bSeric register ENVELOPE *e; 138325a99e2eSeric { 138425a99e2eSeric register FILE *f; 138532d19d43Seric register int pid; 138615d084d5Seric int mode; 138725a99e2eSeric 138832d19d43Seric /* 138932d19d43Seric ** Fork so we can change permissions here. 139032d19d43Seric ** Note that we MUST use fork, not vfork, because of 139132d19d43Seric ** the complications of calling subroutines, etc. 139232d19d43Seric */ 139332d19d43Seric 139432d19d43Seric DOFORK(fork); 139532d19d43Seric 139632d19d43Seric if (pid < 0) 139732d19d43Seric return (EX_OSERR); 139832d19d43Seric else if (pid == 0) 139932d19d43Seric { 140032d19d43Seric /* child -- actually write to file */ 1401f129ec7dSeric struct stat stb; 1402f129ec7dSeric 14030984da9fSeric (void) signal(SIGINT, SIG_DFL); 14040984da9fSeric (void) signal(SIGHUP, SIG_DFL); 14050984da9fSeric (void) signal(SIGTERM, SIG_DFL); 14063462ad9eSeric (void) umask(OldUmask); 140795f16dc0Seric 1408f129ec7dSeric if (stat(filename, &stb) < 0) 1409e6e1265fSeric stb.st_mode = 0666; 141015d084d5Seric mode = stb.st_mode; 141195f16dc0Seric 141295f16dc0Seric /* limit the errors to those actually caused in the child */ 141395f16dc0Seric errno = 0; 141495f16dc0Seric ExitStat = EX_OK; 141595f16dc0Seric 1416f129ec7dSeric if (bitset(0111, stb.st_mode)) 1417f129ec7dSeric exit(EX_CANTCREAT); 141803827b5fSeric if (ctladdr == NULL) 14198f9146b0Srick ctladdr = &e->e_from; 142015d084d5Seric else 142115d084d5Seric { 142215d084d5Seric /* ignore setuid and setgid bits */ 142315d084d5Seric mode &= ~(S_ISGID|S_ISUID); 142415d084d5Seric } 142515d084d5Seric 14268f9146b0Srick /* we have to open the dfile BEFORE setuid */ 14278f9146b0Srick if (e->e_dfp == NULL && e->e_df != NULL) 14288f9146b0Srick { 14298f9146b0Srick e->e_dfp = fopen(e->e_df, "r"); 143095f16dc0Seric if (e->e_dfp == NULL) 143195f16dc0Seric { 14328f9146b0Srick syserr("mailfile: Cannot open %s for %s from %s", 14338f9146b0Srick e->e_df, e->e_to, e->e_from); 14348f9146b0Srick } 14358f9146b0Srick } 14368f9146b0Srick 143715d084d5Seric if (!bitset(S_ISGID, mode) || setgid(stb.st_gid) < 0) 1438e36b99e2Seric { 143995f16dc0Seric if (ctladdr->q_uid == 0) 144095f16dc0Seric { 1441e36b99e2Seric (void) setgid(DefGid); 1442898a126bSbostic (void) initgroups(DefUser, DefGid); 144395f16dc0Seric } 144495f16dc0Seric else 144595f16dc0Seric { 14466259796dSeric (void) setgid(ctladdr->q_gid); 1447898a126bSbostic (void) initgroups(ctladdr->q_ruser ? 1448898a126bSbostic ctladdr->q_ruser : ctladdr->q_user, 1449898a126bSbostic ctladdr->q_gid); 1450898a126bSbostic } 1451e36b99e2Seric } 145215d084d5Seric if (!bitset(S_ISUID, mode) || setuid(stb.st_uid) < 0) 1453e36b99e2Seric { 1454e36b99e2Seric if (ctladdr->q_uid == 0) 1455e36b99e2Seric (void) setuid(DefUid); 1456e36b99e2Seric else 14576259796dSeric (void) setuid(ctladdr->q_uid); 1458e36b99e2Seric } 145995f16dc0Seric FileName = filename; 146095f16dc0Seric LineNumber = 0; 146127628d59Seric f = dfopen(filename, "a"); 146225a99e2eSeric if (f == NULL) 146395f16dc0Seric { 146408b25121Seric message("554 cannot open"); 146532d19d43Seric exit(EX_CANTCREAT); 146695f16dc0Seric } 146725a99e2eSeric 1468b31e7f2bSeric putfromline(f, ProgMailer, e); 1469b843d759Seric (*e->e_puthdr)(f, ProgMailer, e); 147077b52738Seric putline("\n", f, ProgMailer); 1471b843d759Seric (*e->e_putbody)(f, ProgMailer, e); 147277b52738Seric putline("\n", f, ProgMailer); 147395f16dc0Seric if (ferror(f)) 147495f16dc0Seric { 147508b25121Seric message("451 I/O error"); 147695f16dc0Seric setstat(EX_IOERR); 147795f16dc0Seric } 1478ee4b0922Seric (void) xfclose(f, "mailfile", filename); 147932d19d43Seric (void) fflush(stdout); 1480e36b99e2Seric 148127628d59Seric /* reset ISUID & ISGID bits for paranoid systems */ 1482c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 148395f16dc0Seric exit(ExitStat); 148413bbc08cSeric /*NOTREACHED*/ 148532d19d43Seric } 148632d19d43Seric else 148732d19d43Seric { 148832d19d43Seric /* parent -- wait for exit status */ 1489588cad61Seric int st; 149032d19d43Seric 1491588cad61Seric st = waitfor(pid); 1492588cad61Seric if ((st & 0377) != 0) 1493588cad61Seric return (EX_UNAVAILABLE); 1494588cad61Seric else 1495588cad61Seric return ((st >> 8) & 0377); 14968f9146b0Srick /*NOTREACHED*/ 149732d19d43Seric } 149825a99e2eSeric } 1499ea4dc939Seric /* 1500ea4dc939Seric ** SENDALL -- actually send all the messages. 1501ea4dc939Seric ** 1502ea4dc939Seric ** Parameters: 15030c52a0b3Seric ** e -- the envelope to send. 15047b95031aSeric ** mode -- the delivery mode to use. If SM_DEFAULT, use 1505511ad433Seric ** the current e->e_sendmode. 1506ea4dc939Seric ** 1507ea4dc939Seric ** Returns: 1508ea4dc939Seric ** none. 1509ea4dc939Seric ** 1510ea4dc939Seric ** Side Effects: 1511ea4dc939Seric ** Scans the send lists and sends everything it finds. 15120c52a0b3Seric ** Delivers any appropriate error messages. 1513276723a8Seric ** If we are running in a non-interactive mode, takes the 1514276723a8Seric ** appropriate action. 1515ea4dc939Seric */ 1516ea4dc939Seric 1517276723a8Seric sendall(e, mode) 15180c52a0b3Seric ENVELOPE *e; 1519276723a8Seric char mode; 1520ea4dc939Seric { 1521e77e673fSeric register ADDRESS *q; 15229836bea2Seric char *owner; 15239836bea2Seric int otherowners; 15241cc3a5d3Seric register ENVELOPE *ee; 15259836bea2Seric ENVELOPE *splitenv = NULL; 1526ea4dc939Seric 15277b95031aSeric /* determine actual delivery mode */ 15287b95031aSeric if (mode == SM_DEFAULT) 15297b95031aSeric { 15305f73204aSeric extern bool shouldqueue(); 15317b95031aSeric 1532511ad433Seric mode = e->e_sendmode; 15333f324333Seric if (mode != SM_VERIFY && 15343f324333Seric shouldqueue(e->e_msgpriority, e->e_ctime)) 15353f324333Seric mode = SM_QUEUE; 15367b95031aSeric } 15377b95031aSeric 1538df864a8fSeric if (tTd(13, 1)) 1539772e6e50Seric { 1540ee4b0922Seric printf("\nSENDALL: mode %c, e_from ", mode); 1541ee4b0922Seric printaddr(&e->e_from, FALSE); 1542ee4b0922Seric printf("sendqueue:\n"); 15430c52a0b3Seric printaddr(e->e_sendqueue, TRUE); 1544772e6e50Seric } 1545ea4dc939Seric 15460c52a0b3Seric /* 1547276723a8Seric ** Do any preprocessing necessary for the mode we are running. 1548588cad61Seric ** Check to make sure the hop count is reasonable. 1549588cad61Seric ** Delete sends to the sender in mailing lists. 1550276723a8Seric */ 1551276723a8Seric 1552588cad61Seric CurEnv = e; 1553276723a8Seric 15541d57450bSeric if (e->e_hopcount > MaxHopCount) 1555276723a8Seric { 15568f9146b0Srick errno = 0; 155708b25121Seric syserr("554 too many hops %d (%d max): from %s, to %s", 1558655518ecSeric e->e_hopcount, MaxHopCount, e->e_from.q_paddr, 1559655518ecSeric e->e_sendqueue->q_paddr); 1560588cad61Seric return; 1561588cad61Seric } 1562588cad61Seric 1563588cad61Seric if (!MeToo) 1564276723a8Seric { 1565f3d6c55cSeric extern ADDRESS *recipient(); 1566f3d6c55cSeric 156775f1ade9Seric if (tTd(13, 5)) 156875f1ade9Seric { 156975f1ade9Seric printf("sendall: QDONTSEND "); 157075f1ade9Seric printaddr(&e->e_from, FALSE); 157175f1ade9Seric } 1572ee4b0922Seric e->e_from.q_flags |= QDONTSEND; 1573b843d759Seric (void) recipient(&e->e_from, &e->e_sendqueue, e); 1574276723a8Seric } 1575588cad61Seric 15769836bea2Seric /* 15779836bea2Seric ** Handle alias owners. 15789836bea2Seric ** 15799836bea2Seric ** We scan up the q_alias chain looking for owners. 15809836bea2Seric ** We discard owners that are the same as the return path. 15819836bea2Seric */ 15829836bea2Seric 15839836bea2Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 15849836bea2Seric { 15859836bea2Seric register struct address *a; 15869836bea2Seric 15879836bea2Seric for (a = q; a != NULL && a->q_owner == NULL; a = a->q_alias) 15889836bea2Seric continue; 15899836bea2Seric if (a != NULL) 15909836bea2Seric q->q_owner = a->q_owner; 15919836bea2Seric 1592ee4b0922Seric if (q->q_owner != NULL && 1593ee4b0922Seric !bitset(QDONTSEND, q->q_flags) && 1594ee4b0922Seric strcmp(q->q_owner, e->e_from.q_paddr) == 0) 15959836bea2Seric q->q_owner = NULL; 15969836bea2Seric } 15979836bea2Seric 15989836bea2Seric owner = ""; 15999836bea2Seric otherowners = 1; 16009836bea2Seric while (owner != NULL && otherowners > 0) 16019836bea2Seric { 16029836bea2Seric owner = NULL; 16039836bea2Seric otherowners = 0; 16049836bea2Seric 16059836bea2Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 16069836bea2Seric { 16079836bea2Seric if (bitset(QDONTSEND, q->q_flags)) 16089836bea2Seric continue; 16099836bea2Seric 16109836bea2Seric if (q->q_owner != NULL) 16119836bea2Seric { 16129836bea2Seric if (owner == NULL) 16139836bea2Seric owner = q->q_owner; 16149836bea2Seric else if (owner != q->q_owner) 16159836bea2Seric { 16169836bea2Seric if (strcmp(owner, q->q_owner) == 0) 16179836bea2Seric { 16189836bea2Seric /* make future comparisons cheap */ 16199836bea2Seric q->q_owner = owner; 16209836bea2Seric } 16219836bea2Seric else 16229836bea2Seric { 16239836bea2Seric otherowners++; 16249836bea2Seric } 16259836bea2Seric owner = q->q_owner; 16269836bea2Seric } 16279836bea2Seric } 16289836bea2Seric else 16299836bea2Seric { 16309836bea2Seric otherowners++; 16319836bea2Seric } 16329836bea2Seric } 16339836bea2Seric 16349836bea2Seric if (owner != NULL && otherowners > 0) 16359836bea2Seric { 16369836bea2Seric extern HDR *copyheader(); 16379836bea2Seric extern ADDRESS *copyqueue(); 16389836bea2Seric 1639ee4b0922Seric /* 1640ee4b0922Seric ** Split this envelope into two. 1641ee4b0922Seric */ 1642ee4b0922Seric 16439836bea2Seric ee = (ENVELOPE *) xalloc(sizeof(ENVELOPE)); 1644ee4b0922Seric *ee = *e; 16459836bea2Seric ee->e_id = NULL; 1646ee4b0922Seric (void) queuename(ee, '\0'); 1647ee4b0922Seric 1648ee4b0922Seric if (tTd(13, 1)) 1649ee4b0922Seric printf("sendall: split %s into %s\n", 1650ee4b0922Seric e->e_id, ee->e_id); 1651ee4b0922Seric 16529836bea2Seric ee->e_header = copyheader(e->e_header); 16539836bea2Seric ee->e_sendqueue = copyqueue(e->e_sendqueue); 16549836bea2Seric ee->e_errorqueue = copyqueue(e->e_errorqueue); 16559836bea2Seric ee->e_flags = e->e_flags & ~(EF_INQUEUE|EF_CLRQUEUE); 1656579ef0ddSeric setsender(owner, ee, NULL, TRUE); 1657ee4b0922Seric if (tTd(13, 5)) 1658ee4b0922Seric { 1659ee4b0922Seric printf("sendall(split): QDONTSEND "); 1660ee4b0922Seric printaddr(&ee->e_from, FALSE); 1661ee4b0922Seric } 1662ee4b0922Seric ee->e_from.q_flags |= QDONTSEND; 1663ee4b0922Seric ee->e_dfp = NULL; 1664ee4b0922Seric ee->e_xfp = NULL; 1665ee4b0922Seric ee->e_lockfp = NULL; 1666ee4b0922Seric ee->e_df = NULL; 1667511ad433Seric ee->e_errormode = EM_MAIL; 16689836bea2Seric ee->e_sibling = splitenv; 16699836bea2Seric splitenv = ee; 16709836bea2Seric 16719836bea2Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 16729836bea2Seric if (q->q_owner == owner) 16739836bea2Seric q->q_flags |= QDONTSEND; 16749836bea2Seric for (q = ee->e_sendqueue; q != NULL; q = q->q_next) 16759836bea2Seric if (q->q_owner != owner) 16769836bea2Seric q->q_flags |= QDONTSEND; 16779836bea2Seric 16789836bea2Seric if (e->e_df != NULL && mode != SM_VERIFY) 16799836bea2Seric { 16809836bea2Seric ee->e_dfp = NULL; 1681239b3abaSeric ee->e_df = newstr(queuename(ee, 'd')); 16829836bea2Seric if (link(e->e_df, ee->e_df) < 0) 16839836bea2Seric { 16849836bea2Seric syserr("sendall: link(%s, %s)", 16859836bea2Seric e->e_df, ee->e_df); 16869836bea2Seric } 16879836bea2Seric } 1688ee4b0922Seric 1689ee4b0922Seric if (mode != SM_VERIFY) 1690*c9be6216Seric openxscript(ee); 1691336a44ebSeric #ifdef LOG 1692336a44ebSeric if (LogLevel > 4) 1693336a44ebSeric syslog(LOG_INFO, "%s: clone %s", 1694336a44ebSeric ee->e_id, e->e_id); 1695336a44ebSeric #endif 16969836bea2Seric } 16979836bea2Seric } 16989836bea2Seric 16999836bea2Seric if (owner != NULL) 1700ee4b0922Seric { 1701579ef0ddSeric setsender(owner, e, NULL, TRUE); 1702ee4b0922Seric if (tTd(13, 5)) 1703ee4b0922Seric { 1704ee4b0922Seric printf("sendall(owner): QDONTSEND "); 1705ee4b0922Seric printaddr(&e->e_from, FALSE); 1706ee4b0922Seric } 1707ee4b0922Seric e->e_from.q_flags |= QDONTSEND; 1708511ad433Seric e->e_errormode = EM_MAIL; 1709ee4b0922Seric } 17109836bea2Seric 1711588cad61Seric # ifdef QUEUE 1712b254bcb6Seric if ((mode == SM_QUEUE || mode == SM_FORK || 1713b254bcb6Seric (mode != SM_VERIFY && SuperSafe)) && 1714b254bcb6Seric !bitset(EF_INQUEUE, e->e_flags)) 17151cc3a5d3Seric { 17161cc3a5d3Seric /* be sure everything is instantiated in the queue */ 1717e020b127Seric queueup(e, TRUE, mode == SM_QUEUE); 17181cc3a5d3Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 17191cc3a5d3Seric queueup(ee, TRUE, mode == SM_QUEUE); 17201cc3a5d3Seric } 17216c2c3107Seric #endif /* QUEUE */ 1722276723a8Seric 17239836bea2Seric if (splitenv != NULL) 17249836bea2Seric { 17259836bea2Seric if (tTd(13, 1)) 17269836bea2Seric { 17279836bea2Seric printf("\nsendall: Split queue; remaining queue:\n"); 17289836bea2Seric printaddr(e->e_sendqueue, TRUE); 17299836bea2Seric } 17309836bea2Seric 1731ee4b0922Seric for (ee = splitenv; ee != NULL; ee = ee->e_sibling) 17329836bea2Seric { 1733ee4b0922Seric CurEnv = ee; 1734ee4b0922Seric sendenvelope(ee, mode); 17359836bea2Seric } 17369836bea2Seric 17379836bea2Seric CurEnv = e; 17389836bea2Seric } 1739ee4b0922Seric sendenvelope(e, mode); 1740ee4b0922Seric 1741ee4b0922Seric for (; splitenv != NULL; splitenv = splitenv->e_sibling) 1742ee4b0922Seric dropenvelope(splitenv); 1743ee4b0922Seric } 1744ee4b0922Seric 1745ee4b0922Seric sendenvelope(e, mode) 1746ee4b0922Seric register ENVELOPE *e; 1747ee4b0922Seric char mode; 1748ee4b0922Seric { 1749ee4b0922Seric bool oldverbose; 1750ee4b0922Seric int pid; 1751ee4b0922Seric register ADDRESS *q; 17525ff3c5eaSeric #ifdef LOCKF 17535ff3c5eaSeric struct flock lfd; 17545ff3c5eaSeric #endif 17559836bea2Seric 1756276723a8Seric oldverbose = Verbose; 1757276723a8Seric switch (mode) 1758276723a8Seric { 1759276723a8Seric case SM_VERIFY: 1760276723a8Seric Verbose = TRUE; 1761276723a8Seric break; 1762276723a8Seric 1763276723a8Seric case SM_QUEUE: 1764c7f5410dSeric queueonly: 1765b254bcb6Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 1766276723a8Seric return; 1767276723a8Seric 1768276723a8Seric case SM_FORK: 17699a6a5f55Seric if (e->e_xfp != NULL) 17709a6a5f55Seric (void) fflush(e->e_xfp); 1771c7f5410dSeric 1772c7f5410dSeric # ifdef LOCKF 1773c7f5410dSeric /* 1774c7f5410dSeric ** Since lockf has the interesting semantic that the 17751c265a00Seric ** lock is lost when we fork, we have to risk losing 17761c265a00Seric ** the lock here by closing before the fork, and then 17771c265a00Seric ** trying to get it back in the child. 1778c7f5410dSeric */ 1779c7f5410dSeric 1780e020b127Seric if (e->e_lockfp != NULL) 1781c7f5410dSeric { 1782ee4b0922Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 1783e020b127Seric e->e_lockfp = NULL; 1784c7f5410dSeric } 1785c7f5410dSeric # endif /* LOCKF */ 1786c7f5410dSeric 1787276723a8Seric pid = fork(); 1788276723a8Seric if (pid < 0) 1789276723a8Seric { 1790c7f5410dSeric goto queueonly; 1791276723a8Seric } 1792276723a8Seric else if (pid > 0) 1793a6fce3d8Seric { 1794a6fce3d8Seric /* be sure we leave the temp files to our child */ 1795b254bcb6Seric e->e_id = e->e_df = NULL; 1796c7f5410dSeric # ifndef LOCKF 1797e020b127Seric if (e->e_lockfp != NULL) 179875f1ade9Seric { 1799ee4b0922Seric (void) xfclose(e->e_lockfp, "sendenvelope", "lockfp"); 180075f1ade9Seric e->e_lockfp = NULL; 180175f1ade9Seric } 1802c7f5410dSeric # endif 180375f1ade9Seric 180475f1ade9Seric /* close any random open files in the envelope */ 180575f1ade9Seric if (e->e_dfp != NULL) 180675f1ade9Seric { 1807ee4b0922Seric (void) xfclose(e->e_dfp, "sendenvelope", "dfp"); 180875f1ade9Seric e->e_dfp = NULL; 180975f1ade9Seric } 181075f1ade9Seric if (e->e_xfp != NULL) 181175f1ade9Seric { 1812ee4b0922Seric (void) xfclose(e->e_xfp, "sendenvelope", "xfp"); 181375f1ade9Seric e->e_xfp = NULL; 181475f1ade9Seric } 1815276723a8Seric return; 1816a6fce3d8Seric } 1817276723a8Seric 1818276723a8Seric /* double fork to avoid zombies */ 1819276723a8Seric if (fork() > 0) 1820276723a8Seric exit(EX_OK); 1821276723a8Seric 1822a6fce3d8Seric /* be sure we are immune from the terminal */ 18238dadacffSeric disconnect(FALSE, e); 1824a6fce3d8Seric 1825e6720d51Seric # ifdef LOCKF 1826e6720d51Seric /* 1827c7f5410dSeric ** Now try to get our lock back. 1828e6720d51Seric */ 1829e6720d51Seric 18301c265a00Seric lfd.l_type = F_WRLCK; 18311c265a00Seric lfd.l_whence = lfd.l_start = lfd.l_len = 0; 1832e020b127Seric e->e_lockfp = fopen(queuename(e, 'q'), "r+"); 1833e020b127Seric if (e->e_lockfp == NULL || 18341c265a00Seric fcntl(fileno(e->e_lockfp), F_SETLK, &lfd) < 0) 1835e6720d51Seric { 1836e6720d51Seric /* oops.... lost it */ 1837336a44ebSeric if (tTd(13, 1)) 1838336a44ebSeric printf("sendenvelope: %s lost lock: lockfp=%x, %s\n", 1839336a44ebSeric e->e_id, e->e_lockfp, errstring(errno)); 1840336a44ebSeric 1841e6720d51Seric # ifdef LOG 18422f624c86Seric if (LogLevel > 29) 1843c7f5410dSeric syslog(LOG_NOTICE, "%s: lost lock: %m", 1844b31e7f2bSeric e->e_id); 1845e6720d51Seric # endif /* LOG */ 1846e6720d51Seric exit(EX_OK); 1847e6720d51Seric } 1848e6720d51Seric # endif /* LOCKF */ 1849e6720d51Seric 18501caa9a59Seric /* 18511caa9a59Seric ** Close any cached connections. 18521caa9a59Seric ** 18531caa9a59Seric ** We don't send the QUIT protocol because the parent 18541caa9a59Seric ** still knows about the connection. 18551caa9a59Seric ** 18561caa9a59Seric ** This should only happen when delivering an error 18571caa9a59Seric ** message. 18581caa9a59Seric */ 18591caa9a59Seric 18601caa9a59Seric mci_flush(FALSE, NULL); 18611caa9a59Seric 1862276723a8Seric break; 1863276723a8Seric } 1864276723a8Seric 1865276723a8Seric /* 18660c52a0b3Seric ** Run through the list and send everything. 18670c52a0b3Seric */ 18680c52a0b3Seric 1869655518ecSeric e->e_nsent = 0; 18700c52a0b3Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 1871ea4dc939Seric { 1872276723a8Seric if (mode == SM_VERIFY) 1873ea4dc939Seric { 1874a6fce3d8Seric e->e_to = q->q_paddr; 1875e77e673fSeric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 187608b25121Seric message("deliverable"); 1877ea4dc939Seric } 1878ee4b0922Seric else if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 1879dde5acadSeric { 1880de1179f5Seric # ifdef QUEUE 1881dde5acadSeric /* 1882dde5acadSeric ** Checkpoint the send list every few addresses 1883dde5acadSeric */ 1884dde5acadSeric 1885655518ecSeric if (e->e_nsent >= CheckpointInterval) 1886dde5acadSeric { 1887e020b127Seric queueup(e, TRUE, FALSE); 1888655518ecSeric e->e_nsent = 0; 1889dde5acadSeric } 1890de1179f5Seric # endif /* QUEUE */ 1891655518ecSeric (void) deliver(e, q); 1892dde5acadSeric } 1893ea4dc939Seric } 189414a8ed7aSeric Verbose = oldverbose; 18950c52a0b3Seric 18960c52a0b3Seric /* 18970c52a0b3Seric ** Now run through and check for errors. 18980c52a0b3Seric */ 18990c52a0b3Seric 1900e020b127Seric if (mode == SM_VERIFY) 1901ee4b0922Seric { 19020c52a0b3Seric return; 1903ee4b0922Seric } 19040c52a0b3Seric 19050c52a0b3Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 19060c52a0b3Seric { 1907df864a8fSeric if (tTd(13, 3)) 1908df864a8fSeric { 1909df864a8fSeric printf("Checking "); 1910df864a8fSeric printaddr(q, FALSE); 1911df864a8fSeric } 1912df864a8fSeric 1913b254bcb6Seric /* only send errors if the message failed */ 1914b254bcb6Seric if (!bitset(QBADADDR, q->q_flags)) 1915b254bcb6Seric continue; 19160c52a0b3Seric 1917ee4b0922Seric e->e_flags |= EF_FATALERRS; 1918ee4b0922Seric 1919b8043ddbSeric if (q->q_owner == NULL && strcmp(e->e_from.q_paddr, "<>") != 0) 19209836bea2Seric (void) sendtolist(e->e_from.q_paddr, NULL, 19211caa9a59Seric &e->e_errorqueue, e); 19220c52a0b3Seric } 1923276723a8Seric 1924276723a8Seric if (mode == SM_FORK) 1925276723a8Seric finis(); 19260c52a0b3Seric } 1927e103b48fSeric /* 1928e103b48fSeric ** HOSTSIGNATURE -- return the "signature" for a host. 1929e103b48fSeric ** 1930e103b48fSeric ** The signature describes how we are going to send this -- it 1931e103b48fSeric ** can be just the hostname (for non-Internet hosts) or can be 1932e103b48fSeric ** an ordered list of MX hosts. 1933e103b48fSeric ** 1934e103b48fSeric ** Parameters: 1935e103b48fSeric ** m -- the mailer describing this host. 1936e103b48fSeric ** host -- the host name. 1937e103b48fSeric ** e -- the current envelope. 1938e103b48fSeric ** 1939e103b48fSeric ** Returns: 1940e103b48fSeric ** The signature for this host. 1941e103b48fSeric ** 1942e103b48fSeric ** Side Effects: 1943e103b48fSeric ** Can tweak the symbol table. 1944e103b48fSeric */ 1945e103b48fSeric 1946e103b48fSeric char * 1947e103b48fSeric hostsignature(m, host, e) 1948e103b48fSeric register MAILER *m; 1949e103b48fSeric char *host; 1950e103b48fSeric ENVELOPE *e; 1951e103b48fSeric { 1952e103b48fSeric register char *p; 1953e103b48fSeric register STAB *s; 1954e103b48fSeric int i; 1955e103b48fSeric int len; 1956e103b48fSeric #ifdef NAMED_BIND 1957e103b48fSeric int nmx; 1958e103b48fSeric auto int rcode; 1959e103b48fSeric char *mxhosts[MAXMXHOSTS + 1]; 1960e103b48fSeric static char myhostbuf[MAXNAME]; 1961e103b48fSeric #endif 1962e103b48fSeric 1963e103b48fSeric /* 1964e103b48fSeric ** Check to see if this uses IPC -- if not, it can't have MX records. 1965e103b48fSeric */ 1966e103b48fSeric 1967e103b48fSeric p = m->m_mailer; 1968e103b48fSeric if (strcmp(p, "[IPC]") != 0 && strcmp(p, "[TCP]") != 0) 1969e103b48fSeric { 1970e103b48fSeric /* just an ordinary mailer */ 1971e103b48fSeric return host; 1972e103b48fSeric } 1973e103b48fSeric 1974e103b48fSeric /* 1975e103b48fSeric ** If it is a numeric address, just return it. 1976e103b48fSeric */ 1977e103b48fSeric 1978e103b48fSeric if (host[0] == '[') 1979e103b48fSeric return host; 1980e103b48fSeric 1981e103b48fSeric /* 1982e103b48fSeric ** Look it up in the symbol table. 1983e103b48fSeric */ 1984e103b48fSeric 1985e103b48fSeric s = stab(host, ST_HOSTSIG, ST_ENTER); 1986e103b48fSeric if (s->s_hostsig != NULL) 1987e103b48fSeric return s->s_hostsig; 1988e103b48fSeric 1989e103b48fSeric /* 1990e103b48fSeric ** Not already there -- create a signature. 1991e103b48fSeric */ 1992e103b48fSeric 1993e103b48fSeric #ifdef NAMED_BIND 1994e103b48fSeric if (myhostbuf[0] == '\0') 19952bc47524Seric expand("\201j", myhostbuf, &myhostbuf[sizeof myhostbuf - 1], e); 1996e103b48fSeric 1997e103b48fSeric nmx = getmxrr(host, mxhosts, myhostbuf, &rcode); 19987d55540cSeric 1999e103b48fSeric if (nmx <= 0) 2000e103b48fSeric { 2001e103b48fSeric register MCI *mci; 2002e103b48fSeric extern int errno; 2003e103b48fSeric extern MCI *mci_get(); 2004e103b48fSeric 2005e103b48fSeric /* update the connection info for this host */ 2006e103b48fSeric mci = mci_get(host, m); 2007e103b48fSeric mci->mci_exitstat = rcode; 2008e103b48fSeric mci->mci_errno = errno; 2009e103b48fSeric 2010e103b48fSeric /* and return the original host name as the signature */ 2011e103b48fSeric s->s_hostsig = host; 2012e103b48fSeric return host; 2013e103b48fSeric } 2014e103b48fSeric 2015e103b48fSeric len = 0; 2016e103b48fSeric for (i = 0; i < nmx; i++) 2017e103b48fSeric { 2018e103b48fSeric len += strlen(mxhosts[i]) + 1; 2019e103b48fSeric } 2020e103b48fSeric s->s_hostsig = p = xalloc(len); 2021e103b48fSeric for (i = 0; i < nmx; i++) 2022e103b48fSeric { 2023e103b48fSeric if (i != 0) 2024e103b48fSeric *p++ = ':'; 2025e103b48fSeric strcpy(p, mxhosts[i]); 2026e103b48fSeric p += strlen(p); 2027e103b48fSeric } 2028e103b48fSeric makelower(s->s_hostsig); 2029e103b48fSeric #else 2030e103b48fSeric /* not using BIND -- the signature is just the host name */ 2031e103b48fSeric s->s_hostsig = host; 2032e103b48fSeric #endif 2033e103b48fSeric if (tTd(17, 1)) 2034e103b48fSeric printf("hostsignature(%s) = %s\n", host, s->s_hostsig); 2035e103b48fSeric return s->s_hostsig; 2036e103b48fSeric } 2037