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*fabb3bd4Seric static char sccsid[] = "@(#)deliver.c 6.5 (Berkeley) 01/10/93"; 11e70a7521Sbostic #endif /* not lint */ 124227346bSdist 13fcde9cc8Sbostic #include "sendmail.h" 14911693bfSbostic #include <sys/signal.h> 15c77d1c25Seric #include <sys/stat.h> 16f28da541Smiriam #include <netdb.h> 17fccb3f7aSbostic #include <fcntl.h> 18911693bfSbostic #include <errno.h> 19134746fbSeric #ifdef NAMED_BIND 20912a731aSbostic #include <arpa/nameser.h> 21912a731aSbostic #include <resolv.h> 22134746fbSeric #endif 2325a99e2eSeric 2425a99e2eSeric /* 2513bbc08cSeric ** DELIVER -- Deliver a message to a list of addresses. 2613bbc08cSeric ** 2713bbc08cSeric ** This routine delivers to everyone on the same host as the 2813bbc08cSeric ** user on the head of the list. It is clever about mailers 2913bbc08cSeric ** that don't handle multiple users. It is NOT guaranteed 3013bbc08cSeric ** that it will deliver to all these addresses however -- so 3113bbc08cSeric ** deliver should be called once for each address on the 3213bbc08cSeric ** list. 3325a99e2eSeric ** 3425a99e2eSeric ** Parameters: 35588cad61Seric ** e -- the envelope to deliver. 36c77d1c25Seric ** firstto -- head of the address list to deliver to. 3725a99e2eSeric ** 3825a99e2eSeric ** Returns: 3925a99e2eSeric ** zero -- successfully delivered. 4025a99e2eSeric ** else -- some failure, see ExitStat for more info. 4125a99e2eSeric ** 4225a99e2eSeric ** Side Effects: 4325a99e2eSeric ** The standard input is passed off to someone. 4425a99e2eSeric */ 4525a99e2eSeric 46588cad61Seric deliver(e, firstto) 47588cad61Seric register ENVELOPE *e; 48c77d1c25Seric ADDRESS *firstto; 4925a99e2eSeric { 5078442df3Seric char *host; /* host being sent to */ 5178442df3Seric char *user; /* user being sent to */ 5225a99e2eSeric char **pvp; 535dfc646bSeric register char **mvp; 5425a99e2eSeric register char *p; 55588cad61Seric register MAILER *m; /* mailer for this recipient */ 566259796dSeric ADDRESS *ctladdr; 57b31e7f2bSeric register MCI *mci; 58c77d1c25Seric register ADDRESS *to = firstto; 59c579ef51Seric bool clever = FALSE; /* running user smtp to this mailer */ 60772e6e50Seric ADDRESS *tochain = NULL; /* chain of users in this mailer call */ 61911693bfSbostic int rcode; /* response code */ 62c23ed322Seric char *from; /* pointer to from person */ 63ee6bf8dfSeric char *pv[MAXPV+1]; 64ee6bf8dfSeric char tobuf[MAXLINE-50]; /* text line of to people */ 65ee6bf8dfSeric char buf[MAXNAME]; 66ee6bf8dfSeric char tfrombuf[MAXNAME]; /* translated from person */ 67c23ed322Seric char rpathbuf[MAXNAME]; /* translated return path */ 68*fabb3bd4Seric extern int checkcompat(); 69ee6bf8dfSeric extern ADDRESS *getctladdr(); 70ee6bf8dfSeric extern char *remotename(); 71b31e7f2bSeric extern MCI *openmailer(); 7225a99e2eSeric 7335490626Seric errno = 0; 74da2935e1Seric if (bitset(QDONTSEND, to->q_flags)) 755dfc646bSeric return (0); 7625a99e2eSeric 77134746fbSeric #ifdef NAMED_BIND 78912a731aSbostic /* unless interactive, try twice, over a minute */ 79912a731aSbostic if (OpMode == MD_DAEMON || OpMode == MD_SMTP) { 80912a731aSbostic _res.retrans = 30; 81912a731aSbostic _res.retry = 2; 82912a731aSbostic } 83d4bd8f0eSbostic #endif 84912a731aSbostic 8551552439Seric m = to->q_mailer; 8651552439Seric host = to->q_host; 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 10257fc6f17Seric if (NoConnect && !QueueRun && bitnset(M_EXPENSIVE, m->m_flags) && 103317680d6Seric !Verbose) 104f3dbc832Seric { 105f3dbc832Seric for (; to != NULL; to = to->q_next) 106f4560e80Seric { 107f4560e80Seric if (bitset(QDONTSEND, to->q_flags) || to->q_mailer != m) 108f4560e80Seric continue; 109f3dbc832Seric to->q_flags |= QQUEUEUP|QDONTSEND; 110588cad61Seric e->e_to = to->q_paddr; 111eb238f8cSeric message(Arpa_Info, "queued"); 112eb238f8cSeric if (LogLevel > 4) 113b31e7f2bSeric logdelivery("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 $x expansion is 1225dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 1235dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 1245dfc646bSeric ** code does not check for 'pv' overflow; this places a 1255dfc646bSeric ** manifest lower limit of 4 for MAXPV. 1263bea8136Seric ** The from address rewrite is expected to make 1273bea8136Seric ** the address relative to the other end. 1285dfc646bSeric */ 1295dfc646bSeric 13078442df3Seric /* rewrite from address, using rewriting rules */ 131b843d759Seric (void) strcpy(rpathbuf, remotename(e->e_returnpath, m, TRUE, TRUE, e)); 132c23ed322Seric if (e->e_returnpath == e->e_sender) 133c23ed322Seric { 134c23ed322Seric from = rpathbuf; 135c23ed322Seric } 136c23ed322Seric else 137c23ed322Seric { 138b843d759Seric (void) strcpy(tfrombuf, remotename(e->e_sender, m, TRUE, TRUE, e)); 139c23ed322Seric from = tfrombuf; 140c23ed322Seric } 14178442df3Seric 142c23ed322Seric define('f', e->e_returnpath, e); /* raw return path */ 143c23ed322Seric define('<', rpathbuf, e); /* translated return path */ 144c23ed322Seric define('g', from, e); /* translated sender */ 145588cad61Seric define('h', host, e); /* to host */ 1465dfc646bSeric Errors = 0; 1475dfc646bSeric pvp = pv; 1485dfc646bSeric *pvp++ = m->m_argv[0]; 1495dfc646bSeric 1505dfc646bSeric /* insert -f or -r flag as appropriate */ 15157fc6f17Seric if (FromFlag && (bitnset(M_FOPT, m->m_flags) || bitnset(M_ROPT, m->m_flags))) 1525dfc646bSeric { 15357fc6f17Seric if (bitnset(M_FOPT, m->m_flags)) 1545dfc646bSeric *pvp++ = "-f"; 1555dfc646bSeric else 1565dfc646bSeric *pvp++ = "-r"; 157c23ed322Seric *pvp++ = newstr(rpathbuf); 1585dfc646bSeric } 1595dfc646bSeric 1605dfc646bSeric /* 1615dfc646bSeric ** Append the other fixed parts of the argv. These run 1625dfc646bSeric ** up to the first entry containing "$u". There can only 1635dfc646bSeric ** be one of these, and there are only a few more slots 1645dfc646bSeric ** in the pv after it. 1655dfc646bSeric */ 1665dfc646bSeric 1675dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 1685dfc646bSeric { 1696c2c3107Seric while ((p = strchr(p, '\001')) != NULL) 1705dfc646bSeric if (*++p == 'u') 1715dfc646bSeric break; 1725dfc646bSeric if (p != NULL) 1735dfc646bSeric break; 1745dfc646bSeric 1755dfc646bSeric /* this entry is safe -- go ahead and process it */ 176588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 1775dfc646bSeric *pvp++ = newstr(buf); 1785dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 1795dfc646bSeric { 1805dfc646bSeric syserr("Too many parameters to %s before $u", pv[0]); 1815dfc646bSeric return (-1); 1825dfc646bSeric } 1835dfc646bSeric } 184c579ef51Seric 18533db8731Seric /* 18633db8731Seric ** If we have no substitution for the user name in the argument 18733db8731Seric ** list, we know that we must supply the names otherwise -- and 18833db8731Seric ** SMTP is the answer!! 18933db8731Seric */ 19033db8731Seric 1915dfc646bSeric if (*mvp == NULL) 192c579ef51Seric { 193c579ef51Seric /* running SMTP */ 1942c7e1b8dSeric # ifdef SMTP 195c579ef51Seric clever = TRUE; 196c579ef51Seric *pvp = NULL; 1976c2c3107Seric # else /* SMTP */ 19833db8731Seric /* oops! we don't implement SMTP */ 1992c7e1b8dSeric syserr("SMTP style mailer"); 2002c7e1b8dSeric return (EX_SOFTWARE); 2016c2c3107Seric # endif /* SMTP */ 202c579ef51Seric } 2035dfc646bSeric 2045dfc646bSeric /* 2055dfc646bSeric ** At this point *mvp points to the argument with $u. We 2065dfc646bSeric ** run through our address list and append all the addresses 2075dfc646bSeric ** we can. If we run out of space, do not fret! We can 2085dfc646bSeric ** always send another copy later. 2095dfc646bSeric */ 2105dfc646bSeric 2115dfc646bSeric tobuf[0] = '\0'; 212588cad61Seric e->e_to = tobuf; 2136259796dSeric ctladdr = NULL; 2145dfc646bSeric for (; to != NULL; to = to->q_next) 2155dfc646bSeric { 2165dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 21757fc6f17Seric if (tobuf[0] != '\0' && !bitnset(M_MUSER, m->m_flags)) 2185dfc646bSeric break; 2195dfc646bSeric 2205dfc646bSeric /* if already sent or not for this host, don't send */ 221da2935e1Seric if (bitset(QDONTSEND, to->q_flags) || 222da2935e1Seric strcmp(to->q_host, host) != 0 || 223da2935e1Seric to->q_mailer != firstto->q_mailer) 2245dfc646bSeric continue; 2256259796dSeric 2264b22ea87Seric /* avoid overflowing tobuf */ 227aa50a568Sbostic if (sizeof tobuf < (strlen(to->q_paddr) + strlen(tobuf) + 2)) 2284b22ea87Seric break; 2294b22ea87Seric 2306ef48975Seric if (tTd(10, 1)) 231772e6e50Seric { 232772e6e50Seric printf("\nsend to "); 233772e6e50Seric printaddr(to, FALSE); 234772e6e50Seric } 235772e6e50Seric 2366259796dSeric /* compute effective uid/gid when sending */ 2377da1035fSeric if (to->q_mailer == ProgMailer) 2386259796dSeric ctladdr = getctladdr(to); 2396259796dSeric 2405dfc646bSeric user = to->q_user; 241588cad61Seric e->e_to = to->q_paddr; 2425dfc646bSeric to->q_flags |= QDONTSEND; 2435dfc646bSeric 2445dfc646bSeric /* 2455dfc646bSeric ** Check to see that these people are allowed to 2465dfc646bSeric ** talk to each other. 2472a6e0786Seric */ 2482a6e0786Seric 24969582d2fSeric if (m->m_maxsize != 0 && e->e_msgsize > m->m_maxsize) 25069582d2fSeric { 25169582d2fSeric NoReturn = TRUE; 252672bec4aSeric usrerr("Message is too large; %ld bytes max", m->m_maxsize); 25369582d2fSeric giveresponse(EX_UNAVAILABLE, m, e); 25469582d2fSeric continue; 25569582d2fSeric } 256*fabb3bd4Seric rcode = checkcompat(to, e); 257*fabb3bd4Seric if (r <= 0) 2585dfc646bSeric { 259*fabb3bd4Seric giveresponse(rcode == 0 ? EX_UNAVAILABLE : EX_TEMPFAIL, 260*fabb3bd4Seric m, e); 2615dfc646bSeric continue; 2625dfc646bSeric } 2632a6e0786Seric 2642a6e0786Seric /* 2659ec9501bSeric ** Strip quote bits from names if the mailer is dumb 2669ec9501bSeric ** about them. 26725a99e2eSeric */ 26825a99e2eSeric 26957fc6f17Seric if (bitnset(M_STRIPQ, m->m_flags)) 27025a99e2eSeric { 2711d8f1806Seric stripquotes(user); 2721d8f1806Seric stripquotes(host); 27325a99e2eSeric } 27425a99e2eSeric 275cdb828c5Seric /* hack attack -- delivermail compatibility */ 276cdb828c5Seric if (m == ProgMailer && *user == '|') 277cdb828c5Seric user++; 278cdb828c5Seric 27925a99e2eSeric /* 2803efaed6eSeric ** If an error message has already been given, don't 2813efaed6eSeric ** bother to send to this address. 2823efaed6eSeric ** 2833efaed6eSeric ** >>>>>>>>>> This clause assumes that the local mailer 2843efaed6eSeric ** >> NOTE >> cannot do any further aliasing; that 2853efaed6eSeric ** >>>>>>>>>> function is subsumed by sendmail. 2863efaed6eSeric */ 2873efaed6eSeric 2886cae517dSeric if (bitset(QBADADDR|QQUEUEUP, to->q_flags)) 2893efaed6eSeric continue; 2903efaed6eSeric 291f2fec898Seric /* save statistics.... */ 292588cad61Seric markstats(e, to); 293f2fec898Seric 2943efaed6eSeric /* 29525a99e2eSeric ** See if this user name is "special". 29625a99e2eSeric ** If the user name has a slash in it, assume that this 29751552439Seric ** is a file -- send it off without further ado. Note 29851552439Seric ** that this type of addresses is not processed along 29951552439Seric ** with the others, so we fudge on the To person. 30025a99e2eSeric */ 30125a99e2eSeric 3022c017f8dSeric if (m == FileMailer) 30325a99e2eSeric { 304b31e7f2bSeric rcode = mailfile(user, getctladdr(to), e); 305198d9be0Seric giveresponse(rcode, m, e); 306dde5acadSeric if (rcode == EX_OK) 307dde5acadSeric to->q_flags |= QSENT; 3085dfc646bSeric continue; 30925a99e2eSeric } 31025a99e2eSeric 31113bbc08cSeric /* 31213bbc08cSeric ** Address is verified -- add this user to mailer 31313bbc08cSeric ** argv, and add it to the print list of recipients. 31413bbc08cSeric */ 31513bbc08cSeric 316508daeccSeric /* link together the chain of recipients */ 317508daeccSeric to->q_tchain = tochain; 318508daeccSeric tochain = to; 319508daeccSeric 3205dfc646bSeric /* create list of users for error messages */ 321db8841e9Seric (void) strcat(tobuf, ","); 322db8841e9Seric (void) strcat(tobuf, to->q_paddr); 323588cad61Seric define('u', user, e); /* to user */ 324588cad61Seric define('z', to->q_home, e); /* user's home */ 3255dfc646bSeric 326c579ef51Seric /* 327508daeccSeric ** Expand out this user into argument list. 328c579ef51Seric */ 329c579ef51Seric 330508daeccSeric if (!clever) 331c579ef51Seric { 332588cad61Seric expand(*mvp, buf, &buf[sizeof buf - 1], e); 3335dfc646bSeric *pvp++ = newstr(buf); 3345dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 3355dfc646bSeric { 3365dfc646bSeric /* allow some space for trailing parms */ 3375dfc646bSeric break; 3385dfc646bSeric } 3395dfc646bSeric } 340c579ef51Seric } 3415dfc646bSeric 342145b49b1Seric /* see if any addresses still exist */ 343145b49b1Seric if (tobuf[0] == '\0') 344c579ef51Seric { 345588cad61Seric define('g', (char *) NULL, e); 346c23ed322Seric define('<', (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]) 3625dfc646bSeric syserr("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 37486b26461Seric if (ctladdr == NULL) 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 */ 384b31e7f2bSeric rcode = -1; 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 */ 395b31e7f2bSeric rcode = EX_SOFTWARE; 396b31e7f2bSeric } 397b31e7f2bSeric } 398b31e7f2bSeric else if (!clever) 399b31e7f2bSeric { 400b31e7f2bSeric /* 401b31e7f2bSeric ** Format and send message. 402b31e7f2bSeric */ 40315d084d5Seric 404b31e7f2bSeric putfromline(mci->mci_out, m, e); 405b31e7f2bSeric (*e->e_puthdr)(mci->mci_out, m, e); 406b31e7f2bSeric putline("\n", mci->mci_out, m); 407b31e7f2bSeric (*e->e_putbody)(mci->mci_out, m, e); 408b31e7f2bSeric 409b31e7f2bSeric /* get the exit status */ 410b31e7f2bSeric rcode = endmailer(mci, pv[0]); 411134746fbSeric } 412134746fbSeric else 413b31e7f2bSeric #ifdef SMTP 414134746fbSeric { 415b31e7f2bSeric /* 416b31e7f2bSeric ** Send the MAIL FROM: protocol 417b31e7f2bSeric */ 41815d084d5Seric 419b31e7f2bSeric rcode = smtpmailfrom(m, mci, e); 420b31e7f2bSeric if (rcode == EX_OK) 42175889e88Seric { 422ded0d3daSkarels register char *t = tobuf; 423ded0d3daSkarels register int i; 424ded0d3daSkarels 425588cad61Seric /* send the recipient list */ 42663780dbdSeric tobuf[0] = '\0'; 42775889e88Seric for (to = tochain; to != NULL; to = to->q_tchain) 42875889e88Seric { 42963780dbdSeric e->e_to = to->q_paddr; 43015d084d5Seric if ((i = smtprcpt(to, m, mci, e)) != EX_OK) 43175889e88Seric { 43283b7ddc9Seric markfailure(e, to, i); 433198d9be0Seric giveresponse(i, m, e); 43463780dbdSeric } 43575889e88Seric else 43675889e88Seric { 437911693bfSbostic *t++ = ','; 438b31e7f2bSeric for (p = to->q_paddr; *p; *t++ = *p++) 439b31e7f2bSeric continue; 440588cad61Seric } 441588cad61Seric } 442588cad61Seric 44363780dbdSeric /* now send the data */ 44463780dbdSeric if (tobuf[0] == '\0') 445b31e7f2bSeric { 44663780dbdSeric e->e_to = NULL; 447b31e7f2bSeric if (bitset(MCIF_CACHED, mci->mci_flags)) 448b31e7f2bSeric smtprset(m, mci, e); 449b31e7f2bSeric } 45075889e88Seric else 45175889e88Seric { 45263780dbdSeric e->e_to = tobuf + 1; 45375889e88Seric rcode = smtpdata(m, mci, e); 45463780dbdSeric } 45563780dbdSeric 45663780dbdSeric /* now close the connection */ 457b31e7f2bSeric if (!bitset(MCIF_CACHED, mci->mci_flags)) 45815d084d5Seric smtpquit(m, mci, e); 45963780dbdSeric } 460c579ef51Seric } 461b31e7f2bSeric #else /* not SMTP */ 462a05b3449Sbostic { 463b31e7f2bSeric syserr("deliver: need SMTP compiled to use clever mailer"); 464b31e7f2bSeric rcode = -1; 465b31e7f2bSeric goto give_up; 466a05b3449Sbostic } 467b31e7f2bSeric #endif /* SMTP */ 468134746fbSeric #ifdef NAMED_BIND 4692bcc6d2dSeric if (ConfigLevel < 2) 470912a731aSbostic _res.options |= RES_DEFNAMES | RES_DNSRCH; /* XXX */ 471134746fbSeric #endif 4725dfc646bSeric 473b31e7f2bSeric /* arrange a return receipt if requested */ 474b31e7f2bSeric if (e->e_receiptto != NULL && bitnset(M_LOCAL, m->m_flags)) 475b31e7f2bSeric { 476b31e7f2bSeric e->e_flags |= EF_SENDRECEIPT; 477b31e7f2bSeric /* do we want to send back more info? */ 478b31e7f2bSeric } 479b31e7f2bSeric 480c77d1c25Seric /* 48163780dbdSeric ** Do final status disposal. 48263780dbdSeric ** We check for something in tobuf for the SMTP case. 483c77d1c25Seric ** If we got a temporary failure, arrange to queue the 484c77d1c25Seric ** addressees. 485c77d1c25Seric */ 486c77d1c25Seric 487b31e7f2bSeric give_up: 48863780dbdSeric if (tobuf[0] != '\0') 489198d9be0Seric giveresponse(rcode, m, e); 490772e6e50Seric for (to = tochain; to != NULL; to = to->q_tchain) 491b31e7f2bSeric { 492dde5acadSeric if (rcode != EX_OK) 49383b7ddc9Seric markfailure(e, to, rcode); 494dde5acadSeric else 495dde5acadSeric to->q_flags |= QSENT; 496b31e7f2bSeric } 497b31e7f2bSeric 498b31e7f2bSeric /* 499b31e7f2bSeric ** Restore state and return. 500b31e7f2bSeric */ 501c77d1c25Seric 50235490626Seric errno = 0; 503588cad61Seric define('g', (char *) NULL, e); 504c23ed322Seric define('<', (char *) NULL, e); 5055826d9d3Seric return (rcode); 50625a99e2eSeric } 5075dfc646bSeric /* 50883b7ddc9Seric ** MARKFAILURE -- mark a failure on a specific address. 50983b7ddc9Seric ** 51083b7ddc9Seric ** Parameters: 51183b7ddc9Seric ** e -- the envelope we are sending. 51283b7ddc9Seric ** q -- the address to mark. 51383b7ddc9Seric ** rcode -- the code signifying the particular failure. 51483b7ddc9Seric ** 51583b7ddc9Seric ** Returns: 51683b7ddc9Seric ** none. 51783b7ddc9Seric ** 51883b7ddc9Seric ** Side Effects: 51983b7ddc9Seric ** marks the address (and possibly the envelope) with the 52083b7ddc9Seric ** failure so that an error will be returned or 52183b7ddc9Seric ** the message will be queued, as appropriate. 52283b7ddc9Seric */ 52383b7ddc9Seric 52483b7ddc9Seric markfailure(e, q, rcode) 52583b7ddc9Seric register ENVELOPE *e; 52683b7ddc9Seric register ADDRESS *q; 52783b7ddc9Seric int rcode; 52883b7ddc9Seric { 52983b7ddc9Seric if (rcode == EX_OK) 53083b7ddc9Seric return; 531ef137175Sbostic else if (rcode != EX_TEMPFAIL && rcode != EX_IOERR && rcode != EX_OSERR) 53283b7ddc9Seric q->q_flags |= QBADADDR; 53383b7ddc9Seric else if (curtime() > e->e_ctime + TimeOut) 53483b7ddc9Seric { 53583b7ddc9Seric extern char *pintvl(); 536198d9be0Seric char buf[MAXLINE]; 53783b7ddc9Seric 53883b7ddc9Seric if (!bitset(EF_TIMEOUT, e->e_flags)) 539198d9be0Seric { 540198d9be0Seric (void) sprintf(buf, "Cannot send message for %s", 54183b7ddc9Seric pintvl(TimeOut, FALSE)); 542198d9be0Seric if (e->e_message != NULL) 543198d9be0Seric free(e->e_message); 544198d9be0Seric e->e_message = newstr(buf); 545198d9be0Seric message(Arpa_Info, buf); 546198d9be0Seric } 54783b7ddc9Seric q->q_flags |= QBADADDR; 54883b7ddc9Seric e->e_flags |= EF_TIMEOUT; 54983b7ddc9Seric } 55083b7ddc9Seric else 55183b7ddc9Seric q->q_flags |= QQUEUEUP; 55283b7ddc9Seric } 55383b7ddc9Seric /* 55432d19d43Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 55532d19d43Seric ** 55632d19d43Seric ** This MUST be a macro, since after a vfork we are running 55732d19d43Seric ** two processes on the same stack!!! 55832d19d43Seric ** 55932d19d43Seric ** Parameters: 56032d19d43Seric ** none. 56132d19d43Seric ** 56232d19d43Seric ** Returns: 56332d19d43Seric ** From a macro??? You've got to be kidding! 56432d19d43Seric ** 56532d19d43Seric ** Side Effects: 56632d19d43Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 56732d19d43Seric ** pid of child in parent, zero in child. 56832d19d43Seric ** -1 on unrecoverable error. 56932d19d43Seric ** 57032d19d43Seric ** Notes: 57132d19d43Seric ** I'm awfully sorry this looks so awful. That's 57232d19d43Seric ** vfork for you..... 57332d19d43Seric */ 57432d19d43Seric 57532d19d43Seric # define NFORKTRIES 5 57684f7cd1bSeric 57784f7cd1bSeric # ifndef FORK 57884f7cd1bSeric # define FORK fork 57984f7cd1bSeric # endif 58032d19d43Seric 58132d19d43Seric # define DOFORK(fORKfN) \ 58232d19d43Seric {\ 58332d19d43Seric register int i;\ 58432d19d43Seric \ 58511799049Seric for (i = NFORKTRIES; --i >= 0; )\ 58632d19d43Seric {\ 58732d19d43Seric pid = fORKfN();\ 58832d19d43Seric if (pid >= 0)\ 58932d19d43Seric break;\ 59011799049Seric if (i > 0)\ 5916c4635f6Seric sleep((unsigned) NFORKTRIES - i);\ 59232d19d43Seric }\ 59332d19d43Seric } 59432d19d43Seric /* 5952ed72599Seric ** DOFORK -- simple fork interface to DOFORK. 5962ed72599Seric ** 5972ed72599Seric ** Parameters: 5982ed72599Seric ** none. 5992ed72599Seric ** 6002ed72599Seric ** Returns: 6012ed72599Seric ** pid of child in parent. 6022ed72599Seric ** zero in child. 6032ed72599Seric ** -1 on error. 6042ed72599Seric ** 6052ed72599Seric ** Side Effects: 6062ed72599Seric ** returns twice, once in parent and once in child. 6072ed72599Seric */ 6082ed72599Seric 6092ed72599Seric dofork() 6102ed72599Seric { 6112ed72599Seric register int pid; 6122ed72599Seric 6132ed72599Seric DOFORK(fork); 6142ed72599Seric return (pid); 6152ed72599Seric } 6162ed72599Seric /* 617c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 618c579ef51Seric ** 619c579ef51Seric ** We should never get fatal errors (e.g., segmentation 620c579ef51Seric ** violation), so we report those specially. For other 621c579ef51Seric ** errors, we choose a status message (into statmsg), 622c579ef51Seric ** and if it represents an error, we print it. 623c579ef51Seric ** 624c579ef51Seric ** Parameters: 625c579ef51Seric ** pid -- pid of mailer. 626c579ef51Seric ** name -- name of mailer (for error messages). 627c579ef51Seric ** 628c579ef51Seric ** Returns: 629c579ef51Seric ** exit code of mailer. 630c579ef51Seric ** 631c579ef51Seric ** Side Effects: 632c579ef51Seric ** none. 633c579ef51Seric */ 634c579ef51Seric 63575889e88Seric endmailer(mci, name) 636b31e7f2bSeric register MCI *mci; 637c579ef51Seric char *name; 638c579ef51Seric { 639588cad61Seric int st; 640c579ef51Seric 64175889e88Seric /* close any connections */ 64275889e88Seric if (mci->mci_in != NULL) 64375889e88Seric (void) fclose(mci->mci_in); 64475889e88Seric if (mci->mci_out != NULL) 64575889e88Seric (void) fclose(mci->mci_out); 64675889e88Seric mci->mci_in = mci->mci_out = NULL; 64775889e88Seric mci->mci_state = MCIS_CLOSED; 64875889e88Seric 64933db8731Seric /* in the IPC case there is nothing to wait for */ 65075889e88Seric if (mci->mci_pid == 0) 65133db8731Seric return (EX_OK); 65233db8731Seric 65333db8731Seric /* wait for the mailer process to die and collect status */ 65475889e88Seric st = waitfor(mci->mci_pid); 655588cad61Seric if (st == -1) 65678de67c1Seric { 657588cad61Seric syserr("endmailer %s: wait", name); 658588cad61Seric return (EX_SOFTWARE); 659c579ef51Seric } 66033db8731Seric 66133db8731Seric /* see if it died a horrid death */ 662c579ef51Seric if ((st & 0377) != 0) 663c579ef51Seric { 6645f73204aSeric syserr("mailer %s died with signal %o", name, st); 6655f73204aSeric ExitStat = EX_TEMPFAIL; 6665f73204aSeric return (EX_TEMPFAIL); 667c579ef51Seric } 66833db8731Seric 66933db8731Seric /* normal death -- return status */ 670588cad61Seric st = (st >> 8) & 0377; 671588cad61Seric return (st); 672c579ef51Seric } 673c579ef51Seric /* 674c579ef51Seric ** OPENMAILER -- open connection to mailer. 675c579ef51Seric ** 676c579ef51Seric ** Parameters: 677c579ef51Seric ** m -- mailer descriptor. 678c579ef51Seric ** pvp -- parameter vector to pass to mailer. 679c579ef51Seric ** ctladdr -- controlling address for user. 680c579ef51Seric ** clever -- create a full duplex connection. 681c579ef51Seric ** 682c579ef51Seric ** Returns: 68375889e88Seric ** The mail connection info struct for this connection. 68475889e88Seric ** NULL on failure. 685c579ef51Seric ** 686c579ef51Seric ** Side Effects: 687c579ef51Seric ** creates a mailer in a subprocess. 688c579ef51Seric */ 689c579ef51Seric 690b31e7f2bSeric MCI * 691b31e7f2bSeric openmailer(m, pvp, ctladdr, clever, e) 692588cad61Seric MAILER *m; 693c579ef51Seric char **pvp; 694c579ef51Seric ADDRESS *ctladdr; 695c579ef51Seric bool clever; 696b31e7f2bSeric ENVELOPE *e; 697c579ef51Seric { 6985dfc646bSeric int pid; 699b31e7f2bSeric register MCI *mci; 700f8952a83Seric int mpvect[2]; 701c579ef51Seric int rpvect[2]; 7025dfc646bSeric extern FILE *fdopen(); 7035dfc646bSeric 7046ef48975Seric if (tTd(11, 1)) 7055dfc646bSeric { 7068c57e552Seric printf("openmailer:"); 7075dfc646bSeric printav(pvp); 7085dfc646bSeric } 70935490626Seric errno = 0; 7105dfc646bSeric 711ef66a9d0Seric CurHostName = m->m_mailer; 712ef66a9d0Seric 71333db8731Seric /* 71433db8731Seric ** Deal with the special case of mail handled through an IPC 71533db8731Seric ** connection. 71633db8731Seric ** In this case we don't actually fork. We must be 71733db8731Seric ** running SMTP for this to work. We will return a 71833db8731Seric ** zero pid to indicate that we are running IPC. 719e7c1bd78Seric ** We also handle a debug version that just talks to stdin/out. 72033db8731Seric */ 72133db8731Seric 722e7c1bd78Seric /* check for Local Person Communication -- not for mortals!!! */ 723e7c1bd78Seric if (strcmp(m->m_mailer, "[LPC]") == 0) 724e7c1bd78Seric { 725b31e7f2bSeric mci = (MCI *) xalloc(sizeof *mci); 7262a087e90Seric bzero((char *) mci, sizeof *mci); 72775889e88Seric mci->mci_in = stdin; 72875889e88Seric mci->mci_out = stdout; 729b31e7f2bSeric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 73015d084d5Seric mci->mci_mailer = m; 731e7c1bd78Seric } 732b31e7f2bSeric else if (strcmp(m->m_mailer, "[IPC]") == 0 || 733914346b1Seric strcmp(m->m_mailer, "[TCP]") == 0) 73433db8731Seric { 73584f7cd1bSeric #ifdef DAEMON 736ebc61751Sbloom register int i, j; 7371277f9a8Seric register u_short port; 738b31e7f2bSeric int nmx; 739b31e7f2bSeric char *mxhosts[MAXMXHOSTS + 1]; 740b31e7f2bSeric extern MCI *mci_get(); 74133db8731Seric 742ef66a9d0Seric CurHostName = pvp[1]; 743b31e7f2bSeric #ifdef NAMED_BIND 744b31e7f2bSeric if (CurHostName != NULL && CurHostName[0] != '\0' && 745b31e7f2bSeric CurHostName[0] != '[') 746b31e7f2bSeric { 747b31e7f2bSeric int rcode; 748b31e7f2bSeric char buf[MAXNAME]; 749b31e7f2bSeric 750b31e7f2bSeric expand("\001j", buf, &buf[sizeof(buf) - 1], e); 751b31e7f2bSeric nmx = getmxrr(CurHostName, mxhosts, buf, &rcode); 752b31e7f2bSeric if (nmx < 0) 753b31e7f2bSeric { 754b31e7f2bSeric mci = mci_get(CurHostName, m); 755b31e7f2bSeric mci->mci_exitstat = rcode; 756b31e7f2bSeric mci->mci_errno = errno; 757b31e7f2bSeric } 758b31e7f2bSeric } 759b31e7f2bSeric else 760b31e7f2bSeric #endif 761b31e7f2bSeric { 762b31e7f2bSeric nmx = 1; 763b31e7f2bSeric mxhosts[0] = CurHostName; 764b31e7f2bSeric } 765b31e7f2bSeric 76633db8731Seric if (!clever) 76733db8731Seric syserr("non-clever IPC"); 76893b6e3cfSeric if (pvp[2] != NULL) 7691277f9a8Seric port = atoi(pvp[2]); 77093b6e3cfSeric else 7711277f9a8Seric port = 0; 772b31e7f2bSeric for (j = 0; j < nmx; j++) 773ebc61751Sbloom { 77445a8316eSeric /* see if we already know that this host is fried */ 775b31e7f2bSeric CurHostName = mxhosts[j]; 776b31e7f2bSeric mci = mci_get(CurHostName, m); 777b31e7f2bSeric if (mci->mci_state != MCIS_CLOSED) 7781fa7c2ebSeric { 7791fa7c2ebSeric if (tTd(11, 1)) 7801fa7c2ebSeric { 7811fa7c2ebSeric printf("openmailer: "); 7821fa7c2ebSeric mci_dump(mci); 7831fa7c2ebSeric } 78475889e88Seric return mci; 7851fa7c2ebSeric } 78615d084d5Seric mci->mci_mailer = m; 787b31e7f2bSeric if (mci->mci_exitstat != EX_OK) 788b31e7f2bSeric continue; 789b31e7f2bSeric 79075889e88Seric /* try the connection */ 791b6073cecSeric setproctitle("%s %s: %s", e->e_id, mxhosts[j], "user open"); 792914346b1Seric message(Arpa_Info, "Connecting to %s (%s)...", 793b31e7f2bSeric mxhosts[j], m->m_name); 794b31e7f2bSeric i = makeconnection(mxhosts[j], port, mci, 795914346b1Seric bitnset(M_SECURE_PORT, m->m_flags)); 79675889e88Seric mci->mci_exitstat = i; 79775889e88Seric mci->mci_errno = errno; 79875889e88Seric if (i == EX_OK) 799b31e7f2bSeric { 800b31e7f2bSeric mci->mci_state = MCIS_OPENING; 801b31e7f2bSeric mci_cache(mci); 802b31e7f2bSeric break; 803b31e7f2bSeric } 804b31e7f2bSeric else if (tTd(11, 1)) 805b31e7f2bSeric printf("openmailer: makeconnection => stat=%d, errno=%d\n", 806b31e7f2bSeric i, errno); 807b31e7f2bSeric 80875889e88Seric 8095f73204aSeric /* enter status of this host */ 81075889e88Seric setstat(i); 811ed854c7bSeric } 8122a087e90Seric mci->mci_pid = 0; 813b31e7f2bSeric #else /* no DAEMON */ 814588cad61Seric syserr("openmailer: no IPC"); 8151fa7c2ebSeric if (tTd(11, 1)) 8161fa7c2ebSeric printf("openmailer: NULL\n"); 81775889e88Seric return NULL; 818b31e7f2bSeric #endif /* DAEMON */ 819588cad61Seric } 820b31e7f2bSeric else 821b31e7f2bSeric { 8226328bdf7Seric /* create a pipe to shove the mail through */ 823f8952a83Seric if (pipe(mpvect) < 0) 82425a99e2eSeric { 825588cad61Seric syserr("openmailer: pipe (to mailer)"); 8261fa7c2ebSeric if (tTd(11, 1)) 8271fa7c2ebSeric printf("openmailer: NULL\n"); 82875889e88Seric return NULL; 82925a99e2eSeric } 830c579ef51Seric 831c579ef51Seric /* if this mailer speaks smtp, create a return pipe */ 832c579ef51Seric if (clever && pipe(rpvect) < 0) 833c579ef51Seric { 834588cad61Seric syserr("openmailer: pipe (from mailer)"); 835c579ef51Seric (void) close(mpvect[0]); 836c579ef51Seric (void) close(mpvect[1]); 8371fa7c2ebSeric if (tTd(11, 1)) 8381fa7c2ebSeric printf("openmailer: NULL\n"); 83975889e88Seric return NULL; 840c579ef51Seric } 841c579ef51Seric 84233db8731Seric /* 84333db8731Seric ** Actually fork the mailer process. 84433db8731Seric ** DOFORK is clever about retrying. 8456984bfddSeric ** 8466984bfddSeric ** Dispose of SIGCHLD signal catchers that may be laying 8476984bfddSeric ** around so that endmail will get it. 84833db8731Seric */ 84933db8731Seric 850b31e7f2bSeric if (e->e_xfp != NULL) 851b31e7f2bSeric (void) fflush(e->e_xfp); /* for debugging */ 852588cad61Seric (void) fflush(stdout); 8536984bfddSeric # ifdef SIGCHLD 8546984bfddSeric (void) signal(SIGCHLD, SIG_DFL); 8556c2c3107Seric # endif /* SIGCHLD */ 85684f7cd1bSeric DOFORK(FORK); 857f129ec7dSeric /* pid is set by DOFORK */ 85825a99e2eSeric if (pid < 0) 85925a99e2eSeric { 86033db8731Seric /* failure */ 861588cad61Seric syserr("openmailer: cannot fork"); 862f8952a83Seric (void) close(mpvect[0]); 863f8952a83Seric (void) close(mpvect[1]); 864c579ef51Seric if (clever) 865c579ef51Seric { 866c579ef51Seric (void) close(rpvect[0]); 867c579ef51Seric (void) close(rpvect[1]); 868c579ef51Seric } 8691fa7c2ebSeric if (tTd(11, 1)) 8701fa7c2ebSeric printf("openmailer: NULL\n"); 87175889e88Seric return NULL; 87225a99e2eSeric } 87325a99e2eSeric else if (pid == 0) 87425a99e2eSeric { 87513088b9fSeric int i; 876dafbc479Seric int saveerrno; 8775f73204aSeric extern int DtableSize; 87813088b9fSeric 87925a99e2eSeric /* child -- set up input & exec mailer */ 88003ab8e55Seric /* make diagnostic output be standard output */ 8818f0e7860Seric (void) signal(SIGINT, SIG_IGN); 8828f0e7860Seric (void) signal(SIGHUP, SIG_IGN); 8830984da9fSeric (void) signal(SIGTERM, SIG_DFL); 884f8952a83Seric 885b31e7f2bSeric /* arrange to filter std & diag output of command */ 886c579ef51Seric if (clever) 887c579ef51Seric { 888c579ef51Seric (void) close(rpvect[0]); 889c579ef51Seric (void) close(1); 890c579ef51Seric (void) dup(rpvect[1]); 891c579ef51Seric (void) close(rpvect[1]); 892c579ef51Seric } 893276723a8Seric else if (OpMode == MD_SMTP || HoldErrs) 894f8952a83Seric { 895588cad61Seric /* put mailer output in transcript */ 896f8952a83Seric (void) close(1); 897b31e7f2bSeric (void) dup(fileno(e->e_xfp)); 898f8952a83Seric } 899db8841e9Seric (void) close(2); 900db8841e9Seric (void) dup(1); 901f8952a83Seric 902f8952a83Seric /* arrange to get standard input */ 903f8952a83Seric (void) close(mpvect[1]); 904db8841e9Seric (void) close(0); 905f8952a83Seric if (dup(mpvect[0]) < 0) 90625a99e2eSeric { 90725a99e2eSeric syserr("Cannot dup to zero!"); 908a590b978Seric _exit(EX_OSERR); 90925a99e2eSeric } 910f8952a83Seric (void) close(mpvect[0]); 91157fc6f17Seric if (!bitnset(M_RESTR, m->m_flags)) 9120984da9fSeric { 91353e3fa05Seric if (ctladdr == NULL || ctladdr->q_uid == 0) 914e36b99e2Seric { 915e36b99e2Seric (void) setgid(DefGid); 916898a126bSbostic (void) initgroups(DefUser, DefGid); 917e36b99e2Seric (void) setuid(DefUid); 918e36b99e2Seric } 919e36b99e2Seric else 92069f29479Seric { 921e36b99e2Seric (void) setgid(ctladdr->q_gid); 922898a126bSbostic (void) initgroups(ctladdr->q_ruser? 923898a126bSbostic ctladdr->q_ruser: ctladdr->q_user, 924898a126bSbostic ctladdr->q_gid); 925e36b99e2Seric (void) setuid(ctladdr->q_uid); 92669f29479Seric } 9270984da9fSeric } 928588cad61Seric 92913088b9fSeric /* arrange for all the files to be closed */ 930b31e7f2bSeric for (i = 3; i < DtableSize; i++) 931b31e7f2bSeric { 932fccb3f7aSbostic register int j; 933fccb3f7aSbostic if ((j = fcntl(i, F_GETFD, 0)) != -1) 934fccb3f7aSbostic (void)fcntl(i, F_SETFD, j|1); 935fccb3f7aSbostic } 93633db8731Seric 93733db8731Seric /* try to execute the mailer */ 9385df317aaSeric execve(m->m_mailer, pvp, UserEnviron); 939dafbc479Seric saveerrno = errno; 94013088b9fSeric syserr("Cannot exec %s", m->m_mailer); 94195b76e4bSeric if (m == LocalMailer) 94255f33c03Seric _exit(EX_TEMPFAIL); 943dafbc479Seric switch (saveerrno) 94495b76e4bSeric { 94595b76e4bSeric case EIO: 94695b76e4bSeric case EAGAIN: 94795b76e4bSeric case ENOMEM: 94895b76e4bSeric # ifdef EPROCLIM 94995b76e4bSeric case EPROCLIM: 95095b76e4bSeric # endif 95195b76e4bSeric _exit(EX_TEMPFAIL); 95295b76e4bSeric } 953a590b978Seric _exit(EX_UNAVAILABLE); 95425a99e2eSeric } 95525a99e2eSeric 956f8952a83Seric /* 957c579ef51Seric ** Set up return value. 958f8952a83Seric */ 959f8952a83Seric 960b31e7f2bSeric mci = (MCI *) xalloc(sizeof *mci); 9612a087e90Seric bzero((char *) mci, sizeof *mci); 96215d084d5Seric mci->mci_mailer = m; 963b31e7f2bSeric mci->mci_state = clever ? MCIS_OPENING : MCIS_OPEN; 9642a087e90Seric mci->mci_pid = pid; 965f8952a83Seric (void) close(mpvect[0]); 96675889e88Seric mci->mci_out = fdopen(mpvect[1], "w"); 967c579ef51Seric if (clever) 96825a99e2eSeric { 969c579ef51Seric (void) close(rpvect[1]); 97075889e88Seric mci->mci_in = fdopen(rpvect[0], "r"); 97175889e88Seric } 97275889e88Seric else 97375889e88Seric { 97475889e88Seric mci->mci_flags |= MCIF_TEMP; 97575889e88Seric mci->mci_in = NULL; 97675889e88Seric } 977b31e7f2bSeric } 978b31e7f2bSeric 979b31e7f2bSeric /* 980b31e7f2bSeric ** If we are in SMTP opening state, send initial protocol. 981b31e7f2bSeric */ 982b31e7f2bSeric 983b31e7f2bSeric if (clever && mci->mci_state != MCIS_CLOSED) 984b31e7f2bSeric { 985b31e7f2bSeric smtpinit(m, mci, e); 986b31e7f2bSeric } 9871fa7c2ebSeric if (tTd(11, 1)) 9881fa7c2ebSeric { 9891fa7c2ebSeric printf("openmailer: "); 9901fa7c2ebSeric mci_dump(mci); 9911fa7c2ebSeric } 992c579ef51Seric 99375889e88Seric return mci; 99425a99e2eSeric } 99525a99e2eSeric /* 99625a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 99725a99e2eSeric ** 99825a99e2eSeric ** Parameters: 99925a99e2eSeric ** stat -- the status code from the mailer (high byte 100025a99e2eSeric ** only; core dumps must have been taken care of 100125a99e2eSeric ** already). 100225a99e2eSeric ** m -- the mailer descriptor for this mailer. 100325a99e2eSeric ** 100425a99e2eSeric ** Returns: 1005db8841e9Seric ** none. 100625a99e2eSeric ** 100725a99e2eSeric ** Side Effects: 1008c1f9df2cSeric ** Errors may be incremented. 100925a99e2eSeric ** ExitStat may be set. 101025a99e2eSeric */ 101125a99e2eSeric 1012198d9be0Seric giveresponse(stat, m, e) 101325a99e2eSeric int stat; 1014588cad61Seric register MAILER *m; 1015198d9be0Seric ENVELOPE *e; 101625a99e2eSeric { 101725a99e2eSeric register char *statmsg; 101825a99e2eSeric extern char *SysExMsg[]; 101925a99e2eSeric register int i; 1020d4bd8f0eSbostic extern int N_SysEx; 1021d4bd8f0eSbostic #ifdef NAMED_BIND 1022d4bd8f0eSbostic extern int h_errno; 1023d4bd8f0eSbostic #endif 1024198d9be0Seric char buf[MAXLINE]; 102525a99e2eSeric 10267d1fc79dSeric #ifdef lint 10277d1fc79dSeric if (m == NULL) 10287d1fc79dSeric return; 10297d1fc79dSeric #endif lint 10307d1fc79dSeric 103113bbc08cSeric /* 103213bbc08cSeric ** Compute status message from code. 103313bbc08cSeric */ 103413bbc08cSeric 103525a99e2eSeric i = stat - EX__BASE; 1036588cad61Seric if (stat == 0) 1037588cad61Seric statmsg = "250 Sent"; 1038588cad61Seric else if (i < 0 || i > N_SysEx) 1039588cad61Seric { 1040588cad61Seric (void) sprintf(buf, "554 unknown mailer error %d", stat); 1041588cad61Seric stat = EX_UNAVAILABLE; 1042588cad61Seric statmsg = buf; 1043588cad61Seric } 1044198d9be0Seric else if (stat == EX_TEMPFAIL) 1045198d9be0Seric { 10468557d168Seric (void) strcpy(buf, SysExMsg[i]); 1047d4bd8f0eSbostic #ifdef NAMED_BIND 1048f28da541Smiriam if (h_errno == TRY_AGAIN) 1049f28da541Smiriam { 1050f28da541Smiriam extern char *errstring(); 1051f28da541Smiriam 1052f28da541Smiriam statmsg = errstring(h_errno+MAX_ERRNO); 1053f28da541Smiriam } 1054f28da541Smiriam else 1055d4bd8f0eSbostic #endif 1056f28da541Smiriam { 10578557d168Seric if (errno != 0) 1058198d9be0Seric { 105987c9b3e7Seric extern char *errstring(); 10608557d168Seric 1061d87e85f3Seric statmsg = errstring(errno); 1062d87e85f3Seric } 1063d87e85f3Seric else 1064d87e85f3Seric { 1065d87e85f3Seric #ifdef SMTP 1066d87e85f3Seric extern char SmtpError[]; 1067d87e85f3Seric 1068d87e85f3Seric statmsg = SmtpError; 10696c2c3107Seric #else /* SMTP */ 1070d87e85f3Seric statmsg = NULL; 10716c2c3107Seric #endif /* SMTP */ 1072d87e85f3Seric } 1073f28da541Smiriam } 1074d87e85f3Seric if (statmsg != NULL && statmsg[0] != '\0') 1075d87e85f3Seric { 107687c9b3e7Seric (void) strcat(buf, ": "); 1077d87e85f3Seric (void) strcat(buf, statmsg); 10788557d168Seric } 1079198d9be0Seric statmsg = buf; 1080198d9be0Seric } 108125a99e2eSeric else 1082d87e85f3Seric { 108325a99e2eSeric statmsg = SysExMsg[i]; 1084d87e85f3Seric } 1085588cad61Seric 1086588cad61Seric /* 1087588cad61Seric ** Print the message as appropriate 1088588cad61Seric */ 1089588cad61Seric 1090198d9be0Seric if (stat == EX_OK || stat == EX_TEMPFAIL) 10915826d9d3Seric message(Arpa_Info, &statmsg[4]); 109225a99e2eSeric else 109325a99e2eSeric { 1094c1f9df2cSeric Errors++; 10955826d9d3Seric usrerr(statmsg); 109625a99e2eSeric } 109725a99e2eSeric 109825a99e2eSeric /* 109925a99e2eSeric ** Final cleanup. 110025a99e2eSeric ** Log a record of the transaction. Compute the new 110125a99e2eSeric ** ExitStat -- if we already had an error, stick with 110225a99e2eSeric ** that. 110325a99e2eSeric */ 110425a99e2eSeric 110561f5a1d4Seric if (LogLevel > ((stat == 0 || stat == EX_TEMPFAIL) ? 3 : 2)) 1106b31e7f2bSeric logdelivery(&statmsg[4], e); 1107eb238f8cSeric 1108eb238f8cSeric if (stat != EX_TEMPFAIL) 1109eb238f8cSeric setstat(stat); 1110198d9be0Seric if (stat != EX_OK) 1111198d9be0Seric { 1112198d9be0Seric if (e->e_message != NULL) 1113198d9be0Seric free(e->e_message); 1114198d9be0Seric e->e_message = newstr(&statmsg[4]); 1115198d9be0Seric } 11168557d168Seric errno = 0; 1117d4bd8f0eSbostic #ifdef NAMED_BIND 1118f28da541Smiriam h_errno = 0; 1119d4bd8f0eSbostic #endif 1120eb238f8cSeric } 1121eb238f8cSeric /* 1122eb238f8cSeric ** LOGDELIVERY -- log the delivery in the system log 1123eb238f8cSeric ** 1124eb238f8cSeric ** Parameters: 1125eb238f8cSeric ** stat -- the message to print for the status 1126eb238f8cSeric ** 1127eb238f8cSeric ** Returns: 1128eb238f8cSeric ** none 1129eb238f8cSeric ** 1130eb238f8cSeric ** Side Effects: 1131eb238f8cSeric ** none 1132eb238f8cSeric */ 1133eb238f8cSeric 1134b31e7f2bSeric logdelivery(stat, e) 1135eb238f8cSeric char *stat; 1136b31e7f2bSeric register ENVELOPE *e; 11375cf56be3Seric { 11385cf56be3Seric extern char *pintvl(); 11395cf56be3Seric 1140eb238f8cSeric # ifdef LOG 1141b31e7f2bSeric syslog(LOG_INFO, "%s: to=%s, delay=%s, stat=%s", e->e_id, 1142b31e7f2bSeric e->e_to, pintvl(curtime() - e->e_ctime, TRUE), stat); 11436c2c3107Seric # endif /* LOG */ 114425a99e2eSeric } 114525a99e2eSeric /* 114651552439Seric ** PUTFROMLINE -- output a UNIX-style from line (or whatever) 114725a99e2eSeric ** 114851552439Seric ** This can be made an arbitrary message separator by changing $l 114951552439Seric ** 11509b6c17a6Seric ** One of the ugliest hacks seen by human eyes is contained herein: 11519b6c17a6Seric ** UUCP wants those stupid "remote from <host>" lines. Why oh why 11529b6c17a6Seric ** does a well-meaning programmer such as myself have to deal with 11539b6c17a6Seric ** this kind of antique garbage???? 115425a99e2eSeric ** 115525a99e2eSeric ** Parameters: 115651552439Seric ** fp -- the file to output to. 115751552439Seric ** m -- the mailer describing this entry. 115825a99e2eSeric ** 115925a99e2eSeric ** Returns: 116051552439Seric ** none 116125a99e2eSeric ** 116225a99e2eSeric ** Side Effects: 116351552439Seric ** outputs some text to fp. 116425a99e2eSeric */ 116525a99e2eSeric 1166b31e7f2bSeric putfromline(fp, m, e) 116751552439Seric register FILE *fp; 116851552439Seric register MAILER *m; 1169b31e7f2bSeric ENVELOPE *e; 117025a99e2eSeric { 11719b6c17a6Seric char *template = "\001l\n"; 117251552439Seric char buf[MAXLINE]; 117325a99e2eSeric 117457fc6f17Seric if (bitnset(M_NHDR, m->m_flags)) 117551552439Seric return; 117613bbc08cSeric 11772c7e1b8dSeric # ifdef UGLYUUCP 117857fc6f17Seric if (bitnset(M_UGLYUUCP, m->m_flags)) 117974b6e67bSeric { 1180ea09d6edSeric char *bang; 1181ea09d6edSeric char xbuf[MAXLINE]; 118274b6e67bSeric 1183b31e7f2bSeric expand("\001<", buf, &buf[sizeof buf - 1], e); 11846c2c3107Seric bang = strchr(buf, '!'); 118574b6e67bSeric if (bang == NULL) 1186ea09d6edSeric syserr("No ! in UUCP! (%s)", buf); 118774b6e67bSeric else 1188588cad61Seric { 1189ea09d6edSeric *bang++ = '\0'; 11909b6c17a6Seric (void) sprintf(xbuf, "From %s \001d remote from %s\n", bang, buf); 1191ea09d6edSeric template = xbuf; 119274b6e67bSeric } 1193588cad61Seric } 11946c2c3107Seric # endif /* UGLYUUCP */ 1195b31e7f2bSeric expand(template, buf, &buf[sizeof buf - 1], e); 119677b52738Seric putline(buf, fp, m); 1197bc6e2962Seric } 1198bc6e2962Seric /* 119951552439Seric ** PUTBODY -- put the body of a message. 120051552439Seric ** 120151552439Seric ** Parameters: 120251552439Seric ** fp -- file to output onto. 120377b52738Seric ** m -- a mailer descriptor to control output format. 12049a6a5f55Seric ** e -- the envelope to put out. 120551552439Seric ** 120651552439Seric ** Returns: 120751552439Seric ** none. 120851552439Seric ** 120951552439Seric ** Side Effects: 121051552439Seric ** The message is written onto fp. 121151552439Seric */ 121251552439Seric 121377b52738Seric putbody(fp, m, e) 121451552439Seric FILE *fp; 1215588cad61Seric MAILER *m; 12169a6a5f55Seric register ENVELOPE *e; 121751552439Seric { 121877b52738Seric char buf[MAXLINE]; 121951552439Seric 122051552439Seric /* 122151552439Seric ** Output the body of the message 122251552439Seric */ 122351552439Seric 12249a6a5f55Seric if (e->e_dfp == NULL) 122551552439Seric { 12269a6a5f55Seric if (e->e_df != NULL) 12279a6a5f55Seric { 12289a6a5f55Seric e->e_dfp = fopen(e->e_df, "r"); 12299a6a5f55Seric if (e->e_dfp == NULL) 12308f9146b0Srick syserr("putbody: Cannot open %s for %s from %s", 12318f9146b0Srick e->e_df, e->e_to, e->e_from); 12329a6a5f55Seric } 12339a6a5f55Seric else 123477b52738Seric putline("<<< No Message Collected >>>", fp, m); 12359a6a5f55Seric } 12369a6a5f55Seric if (e->e_dfp != NULL) 12379a6a5f55Seric { 12389a6a5f55Seric rewind(e->e_dfp); 123977b52738Seric while (!ferror(fp) && fgets(buf, sizeof buf, e->e_dfp) != NULL) 124024fc8aeeSeric { 124124fc8aeeSeric if (buf[0] == 'F' && bitnset(M_ESCFROM, m->m_flags) && 1242d6fa2b58Sbostic strncmp(buf, "From ", 5) == 0) 12433462ad9eSeric (void) putc('>', fp); 124477b52738Seric putline(buf, fp, m); 124524fc8aeeSeric } 124651552439Seric 12479a6a5f55Seric if (ferror(e->e_dfp)) 124851552439Seric { 124951552439Seric syserr("putbody: read error"); 125051552439Seric ExitStat = EX_IOERR; 125151552439Seric } 125251552439Seric } 125351552439Seric 125451552439Seric (void) fflush(fp); 125551552439Seric if (ferror(fp) && errno != EPIPE) 125651552439Seric { 125751552439Seric syserr("putbody: write error"); 125851552439Seric ExitStat = EX_IOERR; 125951552439Seric } 126051552439Seric errno = 0; 126125a99e2eSeric } 126225a99e2eSeric /* 126325a99e2eSeric ** MAILFILE -- Send a message to a file. 126425a99e2eSeric ** 1265f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 1266f129ec7dSeric ** bits, sendmail will try to become the owner of that file 1267f129ec7dSeric ** rather than the real user. Obviously, this only works if 1268f129ec7dSeric ** sendmail runs as root. 1269f129ec7dSeric ** 1270588cad61Seric ** This could be done as a subordinate mailer, except that it 1271588cad61Seric ** is used implicitly to save messages in ~/dead.letter. We 1272588cad61Seric ** view this as being sufficiently important as to include it 1273588cad61Seric ** here. For example, if the system is dying, we shouldn't have 1274588cad61Seric ** to create another process plus some pipes to save the message. 1275588cad61Seric ** 127625a99e2eSeric ** Parameters: 127725a99e2eSeric ** filename -- the name of the file to send to. 12786259796dSeric ** ctladdr -- the controlling address header -- includes 12796259796dSeric ** the userid/groupid to be when sending. 128025a99e2eSeric ** 128125a99e2eSeric ** Returns: 128225a99e2eSeric ** The exit code associated with the operation. 128325a99e2eSeric ** 128425a99e2eSeric ** Side Effects: 128525a99e2eSeric ** none. 128625a99e2eSeric */ 128725a99e2eSeric 1288b31e7f2bSeric mailfile(filename, ctladdr, e) 128925a99e2eSeric char *filename; 12906259796dSeric ADDRESS *ctladdr; 1291b31e7f2bSeric register ENVELOPE *e; 129225a99e2eSeric { 129325a99e2eSeric register FILE *f; 129432d19d43Seric register int pid; 129515d084d5Seric int mode; 129625a99e2eSeric 129732d19d43Seric /* 129832d19d43Seric ** Fork so we can change permissions here. 129932d19d43Seric ** Note that we MUST use fork, not vfork, because of 130032d19d43Seric ** the complications of calling subroutines, etc. 130132d19d43Seric */ 130232d19d43Seric 130332d19d43Seric DOFORK(fork); 130432d19d43Seric 130532d19d43Seric if (pid < 0) 130632d19d43Seric return (EX_OSERR); 130732d19d43Seric else if (pid == 0) 130832d19d43Seric { 130932d19d43Seric /* child -- actually write to file */ 1310f129ec7dSeric struct stat stb; 1311f129ec7dSeric 13120984da9fSeric (void) signal(SIGINT, SIG_DFL); 13130984da9fSeric (void) signal(SIGHUP, SIG_DFL); 13140984da9fSeric (void) signal(SIGTERM, SIG_DFL); 13153462ad9eSeric (void) umask(OldUmask); 131695f16dc0Seric 1317f129ec7dSeric if (stat(filename, &stb) < 0) 1318e6e1265fSeric stb.st_mode = 0666; 131915d084d5Seric mode = stb.st_mode; 132095f16dc0Seric 132195f16dc0Seric /* limit the errors to those actually caused in the child */ 132295f16dc0Seric errno = 0; 132395f16dc0Seric ExitStat = EX_OK; 132495f16dc0Seric 1325f129ec7dSeric if (bitset(0111, stb.st_mode)) 1326f129ec7dSeric exit(EX_CANTCREAT); 132703827b5fSeric if (ctladdr == NULL) 13288f9146b0Srick ctladdr = &e->e_from; 132915d084d5Seric else 133015d084d5Seric { 133115d084d5Seric /* ignore setuid and setgid bits */ 133215d084d5Seric mode &= ~(S_ISGID|S_ISUID); 133315d084d5Seric } 133415d084d5Seric 13358f9146b0Srick /* we have to open the dfile BEFORE setuid */ 13368f9146b0Srick if (e->e_dfp == NULL && e->e_df != NULL) 13378f9146b0Srick { 13388f9146b0Srick e->e_dfp = fopen(e->e_df, "r"); 133995f16dc0Seric if (e->e_dfp == NULL) 134095f16dc0Seric { 13418f9146b0Srick syserr("mailfile: Cannot open %s for %s from %s", 13428f9146b0Srick e->e_df, e->e_to, e->e_from); 13438f9146b0Srick } 13448f9146b0Srick } 13458f9146b0Srick 134615d084d5Seric if (!bitset(S_ISGID, mode) || setgid(stb.st_gid) < 0) 1347e36b99e2Seric { 134895f16dc0Seric if (ctladdr->q_uid == 0) 134995f16dc0Seric { 1350e36b99e2Seric (void) setgid(DefGid); 1351898a126bSbostic (void) initgroups(DefUser, DefGid); 135295f16dc0Seric } 135395f16dc0Seric else 135495f16dc0Seric { 13556259796dSeric (void) setgid(ctladdr->q_gid); 1356898a126bSbostic (void) initgroups(ctladdr->q_ruser ? 1357898a126bSbostic ctladdr->q_ruser : ctladdr->q_user, 1358898a126bSbostic ctladdr->q_gid); 1359898a126bSbostic } 1360e36b99e2Seric } 136115d084d5Seric if (!bitset(S_ISUID, mode) || setuid(stb.st_uid) < 0) 1362e36b99e2Seric { 1363e36b99e2Seric if (ctladdr->q_uid == 0) 1364e36b99e2Seric (void) setuid(DefUid); 1365e36b99e2Seric else 13666259796dSeric (void) setuid(ctladdr->q_uid); 1367e36b99e2Seric } 136895f16dc0Seric FileName = filename; 136995f16dc0Seric LineNumber = 0; 137027628d59Seric f = dfopen(filename, "a"); 137125a99e2eSeric if (f == NULL) 137295f16dc0Seric { 137395f16dc0Seric message("cannot open"); 137432d19d43Seric exit(EX_CANTCREAT); 137595f16dc0Seric } 137625a99e2eSeric 1377b31e7f2bSeric putfromline(f, ProgMailer, e); 1378b843d759Seric (*e->e_puthdr)(f, ProgMailer, e); 137977b52738Seric putline("\n", f, ProgMailer); 1380b843d759Seric (*e->e_putbody)(f, ProgMailer, e); 138177b52738Seric putline("\n", f, ProgMailer); 138295f16dc0Seric if (ferror(f)) 138395f16dc0Seric { 138495f16dc0Seric message("I/O error"); 138595f16dc0Seric setstat(EX_IOERR); 138695f16dc0Seric } 1387db8841e9Seric (void) fclose(f); 138832d19d43Seric (void) fflush(stdout); 1389e36b99e2Seric 139027628d59Seric /* reset ISUID & ISGID bits for paranoid systems */ 1391c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 139295f16dc0Seric exit(ExitStat); 139313bbc08cSeric /*NOTREACHED*/ 139432d19d43Seric } 139532d19d43Seric else 139632d19d43Seric { 139732d19d43Seric /* parent -- wait for exit status */ 1398588cad61Seric int st; 139932d19d43Seric 1400588cad61Seric st = waitfor(pid); 1401588cad61Seric if ((st & 0377) != 0) 1402588cad61Seric return (EX_UNAVAILABLE); 1403588cad61Seric else 1404588cad61Seric return ((st >> 8) & 0377); 14058f9146b0Srick /*NOTREACHED*/ 140632d19d43Seric } 140725a99e2eSeric } 1408ea4dc939Seric /* 1409ea4dc939Seric ** SENDALL -- actually send all the messages. 1410ea4dc939Seric ** 1411ea4dc939Seric ** Parameters: 14120c52a0b3Seric ** e -- the envelope to send. 14137b95031aSeric ** mode -- the delivery mode to use. If SM_DEFAULT, use 14147b95031aSeric ** the current SendMode. 1415ea4dc939Seric ** 1416ea4dc939Seric ** Returns: 1417ea4dc939Seric ** none. 1418ea4dc939Seric ** 1419ea4dc939Seric ** Side Effects: 1420ea4dc939Seric ** Scans the send lists and sends everything it finds. 14210c52a0b3Seric ** Delivers any appropriate error messages. 1422276723a8Seric ** If we are running in a non-interactive mode, takes the 1423276723a8Seric ** appropriate action. 1424ea4dc939Seric */ 1425ea4dc939Seric 1426276723a8Seric sendall(e, mode) 14270c52a0b3Seric ENVELOPE *e; 1428276723a8Seric char mode; 1429ea4dc939Seric { 1430e77e673fSeric register ADDRESS *q; 143114a8ed7aSeric bool oldverbose; 1432276723a8Seric int pid; 1433dde5acadSeric int nsent; 14341c265a00Seric # ifdef LOCKF 14351c265a00Seric struct flock lfd; 14361c265a00Seric # endif 1437ea4dc939Seric 14387b95031aSeric /* determine actual delivery mode */ 14397b95031aSeric if (mode == SM_DEFAULT) 14407b95031aSeric { 14415f73204aSeric extern bool shouldqueue(); 14427b95031aSeric 144355e150dbSeric if (shouldqueue(e->e_msgpriority, e->e_ctime)) 14447b95031aSeric mode = SM_QUEUE; 14457b95031aSeric else 14467b95031aSeric mode = SendMode; 14477b95031aSeric } 14487b95031aSeric 1449df864a8fSeric if (tTd(13, 1)) 1450772e6e50Seric { 1451276723a8Seric printf("\nSENDALL: mode %c, sendqueue:\n", mode); 14520c52a0b3Seric printaddr(e->e_sendqueue, TRUE); 1453772e6e50Seric } 1454ea4dc939Seric 14550c52a0b3Seric /* 1456276723a8Seric ** Do any preprocessing necessary for the mode we are running. 1457588cad61Seric ** Check to make sure the hop count is reasonable. 1458588cad61Seric ** Delete sends to the sender in mailing lists. 1459276723a8Seric */ 1460276723a8Seric 1461588cad61Seric CurEnv = e; 1462276723a8Seric 14631d57450bSeric if (e->e_hopcount > MaxHopCount) 1464276723a8Seric { 14658f9146b0Srick errno = 0; 14668f9146b0Srick syserr("sendall: too many hops %d (%d max): from %s, to %s", 1467f37d7987Seric e->e_hopcount, MaxHopCount, e->e_from.q_paddr, e->e_to); 1468588cad61Seric return; 1469588cad61Seric } 1470588cad61Seric 1471588cad61Seric if (!MeToo) 1472276723a8Seric { 1473f3d6c55cSeric extern ADDRESS *recipient(); 1474f3d6c55cSeric 1475588cad61Seric e->e_from.q_flags |= QDONTSEND; 1476b843d759Seric (void) recipient(&e->e_from, &e->e_sendqueue, e); 1477276723a8Seric } 1478588cad61Seric 1479588cad61Seric # ifdef QUEUE 1480b254bcb6Seric if ((mode == SM_QUEUE || mode == SM_FORK || 1481b254bcb6Seric (mode != SM_VERIFY && SuperSafe)) && 1482b254bcb6Seric !bitset(EF_INQUEUE, e->e_flags)) 1483e020b127Seric queueup(e, TRUE, mode == SM_QUEUE); 14846c2c3107Seric #endif /* QUEUE */ 1485276723a8Seric 1486276723a8Seric oldverbose = Verbose; 1487276723a8Seric switch (mode) 1488276723a8Seric { 1489276723a8Seric case SM_VERIFY: 1490276723a8Seric Verbose = TRUE; 1491276723a8Seric break; 1492276723a8Seric 1493276723a8Seric case SM_QUEUE: 1494c7f5410dSeric queueonly: 1495b254bcb6Seric e->e_flags |= EF_INQUEUE|EF_KEEPQUEUE; 1496276723a8Seric return; 1497276723a8Seric 1498276723a8Seric case SM_FORK: 14999a6a5f55Seric if (e->e_xfp != NULL) 15009a6a5f55Seric (void) fflush(e->e_xfp); 1501c7f5410dSeric 1502c7f5410dSeric # ifdef LOCKF 1503c7f5410dSeric /* 1504c7f5410dSeric ** Since lockf has the interesting semantic that the 15051c265a00Seric ** lock is lost when we fork, we have to risk losing 15061c265a00Seric ** the lock here by closing before the fork, and then 15071c265a00Seric ** trying to get it back in the child. 1508c7f5410dSeric */ 1509c7f5410dSeric 1510e020b127Seric if (e->e_lockfp != NULL) 1511c7f5410dSeric { 1512e020b127Seric (void) fclose(e->e_lockfp); 1513e020b127Seric e->e_lockfp = NULL; 1514c7f5410dSeric } 1515c7f5410dSeric # endif /* LOCKF */ 1516c7f5410dSeric 1517276723a8Seric pid = fork(); 1518276723a8Seric if (pid < 0) 1519276723a8Seric { 1520c7f5410dSeric goto queueonly; 1521276723a8Seric } 1522276723a8Seric else if (pid > 0) 1523a6fce3d8Seric { 1524a6fce3d8Seric /* be sure we leave the temp files to our child */ 1525b254bcb6Seric e->e_id = e->e_df = NULL; 1526c7f5410dSeric # ifndef LOCKF 1527e020b127Seric if (e->e_lockfp != NULL) 1528e020b127Seric (void) fclose(e->e_lockfp); 1529c7f5410dSeric # endif 1530276723a8Seric return; 1531a6fce3d8Seric } 1532276723a8Seric 1533276723a8Seric /* double fork to avoid zombies */ 1534276723a8Seric if (fork() > 0) 1535276723a8Seric exit(EX_OK); 1536276723a8Seric 1537a6fce3d8Seric /* be sure we are immune from the terminal */ 1538769e215aSeric disconnect(FALSE); 1539a6fce3d8Seric 1540e6720d51Seric # ifdef LOCKF 1541e6720d51Seric /* 1542c7f5410dSeric ** Now try to get our lock back. 1543e6720d51Seric */ 1544e6720d51Seric 15451c265a00Seric lfd.l_type = F_WRLCK; 15461c265a00Seric lfd.l_whence = lfd.l_start = lfd.l_len = 0; 1547e020b127Seric e->e_lockfp = fopen(queuename(e, 'q'), "r+"); 1548e020b127Seric if (e->e_lockfp == NULL || 15491c265a00Seric fcntl(fileno(e->e_lockfp), F_SETLK, &lfd) < 0) 1550e6720d51Seric { 1551e6720d51Seric /* oops.... lost it */ 1552e6720d51Seric # ifdef LOG 1553e6720d51Seric if (LogLevel > 5) 1554c7f5410dSeric syslog(LOG_NOTICE, "%s: lost lock: %m", 1555b31e7f2bSeric e->e_id); 1556e6720d51Seric # endif /* LOG */ 1557e6720d51Seric exit(EX_OK); 1558e6720d51Seric } 1559e6720d51Seric # endif /* LOCKF */ 1560e6720d51Seric 1561276723a8Seric break; 1562276723a8Seric } 1563276723a8Seric 1564276723a8Seric /* 15650c52a0b3Seric ** Run through the list and send everything. 15660c52a0b3Seric */ 15670c52a0b3Seric 1568dde5acadSeric nsent = 0; 15690c52a0b3Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 1570ea4dc939Seric { 1571276723a8Seric if (mode == SM_VERIFY) 1572ea4dc939Seric { 1573a6fce3d8Seric e->e_to = q->q_paddr; 1574e77e673fSeric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 1575ea4dc939Seric message(Arpa_Info, "deliverable"); 1576ea4dc939Seric } 1577dde5acadSeric else if (!bitset(QDONTSEND, q->q_flags)) 1578dde5acadSeric { 1579de1179f5Seric # ifdef QUEUE 1580dde5acadSeric /* 1581dde5acadSeric ** Checkpoint the send list every few addresses 1582dde5acadSeric */ 1583dde5acadSeric 1584dde5acadSeric if (nsent >= CheckpointInterval) 1585dde5acadSeric { 1586e020b127Seric queueup(e, TRUE, FALSE); 1587dde5acadSeric nsent = 0; 1588dde5acadSeric } 1589de1179f5Seric # endif /* QUEUE */ 1590dde5acadSeric if (deliver(e, q) == EX_OK) 1591dde5acadSeric nsent++; 1592dde5acadSeric } 1593ea4dc939Seric } 159414a8ed7aSeric Verbose = oldverbose; 15950c52a0b3Seric 15960c52a0b3Seric /* 15970c52a0b3Seric ** Now run through and check for errors. 15980c52a0b3Seric */ 15990c52a0b3Seric 1600e020b127Seric if (mode == SM_VERIFY) 16010c52a0b3Seric return; 16020c52a0b3Seric 16030c52a0b3Seric for (q = e->e_sendqueue; q != NULL; q = q->q_next) 16040c52a0b3Seric { 16050c52a0b3Seric register ADDRESS *qq; 16060c52a0b3Seric 1607df864a8fSeric if (tTd(13, 3)) 1608df864a8fSeric { 1609df864a8fSeric printf("Checking "); 1610df864a8fSeric printaddr(q, FALSE); 1611df864a8fSeric } 1612df864a8fSeric 1613b254bcb6Seric /* only send errors if the message failed */ 1614b254bcb6Seric if (!bitset(QBADADDR, q->q_flags)) 1615b254bcb6Seric continue; 16160c52a0b3Seric 16170c52a0b3Seric /* we have an address that failed -- find the parent */ 16180c52a0b3Seric for (qq = q; qq != NULL; qq = qq->q_alias) 16190c52a0b3Seric { 16200c52a0b3Seric char obuf[MAXNAME + 6]; 16210c52a0b3Seric extern char *aliaslookup(); 16220c52a0b3Seric 16230c52a0b3Seric /* we can only have owners for local addresses */ 162457fc6f17Seric if (!bitnset(M_LOCAL, qq->q_mailer->m_flags)) 16250c52a0b3Seric continue; 16260c52a0b3Seric 16270c52a0b3Seric /* see if the owner list exists */ 16280c52a0b3Seric (void) strcpy(obuf, "owner-"); 1629cec031e3Seric if (strncmp(qq->q_user, "owner-", 6) == 0) 1630cec031e3Seric (void) strcat(obuf, "owner"); 1631cec031e3Seric else 16320c52a0b3Seric (void) strcat(obuf, qq->q_user); 163355e150dbSeric if (!bitnset(M_USR_UPPER, qq->q_mailer->m_flags)) 1634ef137175Sbostic makelower(obuf); 16350c52a0b3Seric if (aliaslookup(obuf) == NULL) 16360c52a0b3Seric continue; 16370c52a0b3Seric 1638df864a8fSeric if (tTd(13, 4)) 1639df864a8fSeric printf("Errors to %s\n", obuf); 1640df864a8fSeric 16410c52a0b3Seric /* owner list exists -- add it to the error queue */ 1642b843d759Seric sendtolist(obuf, (ADDRESS *) NULL, &e->e_errorqueue, e); 164355e150dbSeric 164455e150dbSeric /* and set the return path to point to it */ 164555e150dbSeric e->e_returnpath = newstr(obuf); 164655e150dbSeric 164753e3fa05Seric ErrorMode = EM_MAIL; 16480c52a0b3Seric break; 16490c52a0b3Seric } 16500c52a0b3Seric 16510c52a0b3Seric /* if we did not find an owner, send to the sender */ 16527455aa0bSeric if (qq == NULL && bitset(QBADADDR, q->q_flags)) 1653b843d759Seric sendtolist(e->e_from.q_paddr, qq, &e->e_errorqueue, e); 16540c52a0b3Seric } 1655276723a8Seric 1656276723a8Seric if (mode == SM_FORK) 1657276723a8Seric finis(); 16580c52a0b3Seric } 1659