125a99e2eSeric # include <signal.h> 254aa2b0fSeric # include <errno.h> 3b20b3270Seric # include "sendmail.h" 4c77d1c25Seric # include <sys/stat.h> 525a99e2eSeric # ifdef LOG 6e374fd72Seric # include <syslog.h> 725a99e2eSeric # endif LOG 825a99e2eSeric 9*33db8731Seric SCCSID(@(#)deliver.c 3.70 03/05/82); 10259cace7Seric 1125a99e2eSeric /* 1213bbc08cSeric ** DELIVER -- Deliver a message to a list of addresses. 1313bbc08cSeric ** 1413bbc08cSeric ** This routine delivers to everyone on the same host as the 1513bbc08cSeric ** user on the head of the list. It is clever about mailers 1613bbc08cSeric ** that don't handle multiple users. It is NOT guaranteed 1713bbc08cSeric ** that it will deliver to all these addresses however -- so 1813bbc08cSeric ** deliver should be called once for each address on the 1913bbc08cSeric ** list. 2025a99e2eSeric ** 2125a99e2eSeric ** Parameters: 22c77d1c25Seric ** firstto -- head of the address list to deliver to. 2325a99e2eSeric ** editfcn -- if non-NULL, we want to call this function 2425a99e2eSeric ** to output the letter (instead of just out- 2525a99e2eSeric ** putting it raw). 2625a99e2eSeric ** 2725a99e2eSeric ** Returns: 2825a99e2eSeric ** zero -- successfully delivered. 2925a99e2eSeric ** else -- some failure, see ExitStat for more info. 3025a99e2eSeric ** 3125a99e2eSeric ** Side Effects: 3225a99e2eSeric ** The standard input is passed off to someone. 3325a99e2eSeric */ 3425a99e2eSeric 35c77d1c25Seric deliver(firstto, editfcn) 36c77d1c25Seric ADDRESS *firstto; 3725a99e2eSeric int (*editfcn)(); 3825a99e2eSeric { 3978442df3Seric char *host; /* host being sent to */ 4078442df3Seric char *user; /* user being sent to */ 4125a99e2eSeric char **pvp; 425dfc646bSeric register char **mvp; 4325a99e2eSeric register char *p; 4478442df3Seric register struct mailer *m; /* mailer for this recipient */ 455dfc646bSeric register int i; 466328bdf7Seric extern putmessage(); 472a6e0786Seric extern bool checkcompat(); 485dfc646bSeric char *pv[MAXPV+1]; 4978442df3Seric char tobuf[MAXLINE]; /* text line of to people */ 505dfc646bSeric char buf[MAXNAME]; 516259796dSeric ADDRESS *ctladdr; 526259796dSeric extern ADDRESS *getctladdr(); 5378442df3Seric char tfrombuf[MAXNAME]; /* translated from person */ 5478442df3Seric extern char **prescan(); 55c77d1c25Seric register ADDRESS *to = firstto; 56c579ef51Seric bool clever = FALSE; /* running user smtp to this mailer */ 57c579ef51Seric bool tempfail = FALSE; 58772e6e50Seric ADDRESS *tochain = NULL; /* chain of users in this mailer call */ 5925a99e2eSeric 6035490626Seric errno = 0; 61e77e673fSeric if (!ForceMail && bitset(QDONTSEND, to->q_flags)) 625dfc646bSeric return (0); 6325a99e2eSeric 6425a99e2eSeric # ifdef DEBUG 6525a99e2eSeric if (Debug) 665dfc646bSeric printf("\n--deliver, mailer=%d, host=`%s', first user=`%s'\n", 677da1035fSeric to->q_mailer->m_mno, to->q_host, to->q_user); 6825a99e2eSeric # endif DEBUG 6925a99e2eSeric 70f3dbc832Seric m = to->q_mailer; 71f3dbc832Seric host = to->q_host; 72f3dbc832Seric 73f3dbc832Seric /* 74f3dbc832Seric ** If this mailer is expensive, and if we don't want to make 75f3dbc832Seric ** connections now, just mark these addresses and return. 76f3dbc832Seric ** This is useful if we want to batch connections to 77f3dbc832Seric ** reduce load. This will cause the messages to be 78f3dbc832Seric ** queued up, and a daemon will come along to send the 79f3dbc832Seric ** messages later. 80f3dbc832Seric ** This should be on a per-mailer basis. 81f3dbc832Seric */ 82f3dbc832Seric 83f3dbc832Seric if (NoConnect && !QueueRun && bitset(M_EXPENSIVE, m->m_flags)) 84f3dbc832Seric { 85f3dbc832Seric QueueUp = TRUE; 86f3dbc832Seric for (; to != NULL; to = to->q_next) 87f3dbc832Seric if (!bitset(QDONTSEND, to->q_flags)) 88f3dbc832Seric to->q_flags |= QQUEUEUP|QDONTSEND; 89f3dbc832Seric return (0); 90f3dbc832Seric } 91f3dbc832Seric 9225a99e2eSeric /* 935dfc646bSeric ** Do initial argv setup. 945dfc646bSeric ** Insert the mailer name. Notice that $x expansion is 955dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 965dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 975dfc646bSeric ** code does not check for 'pv' overflow; this places a 985dfc646bSeric ** manifest lower limit of 4 for MAXPV. 99f3dbc832Seric ** We rewrite the from address here, being careful 100f3dbc832Seric ** to also rewrite it again using ruleset 2 to 101f3dbc832Seric ** eliminate redundancies. 1025dfc646bSeric */ 1035dfc646bSeric 10478442df3Seric /* rewrite from address, using rewriting rules */ 10578442df3Seric (void) expand(m->m_from, buf, &buf[sizeof buf - 1]); 10678442df3Seric mvp = prescan(buf, '\0'); 10778442df3Seric if (mvp == NULL) 10878442df3Seric { 10978442df3Seric syserr("bad mailer from translate \"%s\"", buf); 11078442df3Seric return (EX_SOFTWARE); 11178442df3Seric } 11278442df3Seric rewrite(mvp, 2); 11378442df3Seric cataddr(mvp, tfrombuf, sizeof tfrombuf); 11478442df3Seric 11578442df3Seric define('g', tfrombuf); /* translated sender address */ 1165dfc646bSeric define('h', host); /* to host */ 1175dfc646bSeric Errors = 0; 1185dfc646bSeric pvp = pv; 1195dfc646bSeric *pvp++ = m->m_argv[0]; 1205dfc646bSeric 1215dfc646bSeric /* insert -f or -r flag as appropriate */ 1225dfc646bSeric if (bitset(M_FOPT|M_ROPT, m->m_flags) && FromFlag) 1235dfc646bSeric { 1245dfc646bSeric if (bitset(M_FOPT, m->m_flags)) 1255dfc646bSeric *pvp++ = "-f"; 1265dfc646bSeric else 1275dfc646bSeric *pvp++ = "-r"; 128db8841e9Seric (void) expand("$g", buf, &buf[sizeof buf - 1]); 1295dfc646bSeric *pvp++ = newstr(buf); 1305dfc646bSeric } 1315dfc646bSeric 1325dfc646bSeric /* 1335dfc646bSeric ** Append the other fixed parts of the argv. These run 1345dfc646bSeric ** up to the first entry containing "$u". There can only 1355dfc646bSeric ** be one of these, and there are only a few more slots 1365dfc646bSeric ** in the pv after it. 1375dfc646bSeric */ 1385dfc646bSeric 1395dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 1405dfc646bSeric { 1415dfc646bSeric while ((p = index(p, '$')) != NULL) 1425dfc646bSeric if (*++p == 'u') 1435dfc646bSeric break; 1445dfc646bSeric if (p != NULL) 1455dfc646bSeric break; 1465dfc646bSeric 1475dfc646bSeric /* this entry is safe -- go ahead and process it */ 148db8841e9Seric (void) expand(*mvp, buf, &buf[sizeof buf - 1]); 1495dfc646bSeric *pvp++ = newstr(buf); 1505dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 1515dfc646bSeric { 1525dfc646bSeric syserr("Too many parameters to %s before $u", pv[0]); 1535dfc646bSeric return (-1); 1545dfc646bSeric } 1555dfc646bSeric } 156c579ef51Seric 157*33db8731Seric /* 158*33db8731Seric ** If we have no substitution for the user name in the argument 159*33db8731Seric ** list, we know that we must supply the names otherwise -- and 160*33db8731Seric ** SMTP is the answer!! 161*33db8731Seric */ 162*33db8731Seric 1635dfc646bSeric if (*mvp == NULL) 164c579ef51Seric { 165c579ef51Seric /* running SMTP */ 1662c7e1b8dSeric # ifdef SMTP 167c579ef51Seric clever = TRUE; 168c579ef51Seric *pvp = NULL; 169*33db8731Seric 170*33db8731Seric /* send the initial SMTP protocol */ 171c579ef51Seric i = smtpinit(m, pv, (ADDRESS *) NULL); 172c579ef51Seric giveresponse(i, TRUE, m); 1732c7e1b8dSeric # ifdef QUEUE 174c579ef51Seric if (i == EX_TEMPFAIL) 175c579ef51Seric { 176c579ef51Seric QueueUp = TRUE; 177c579ef51Seric tempfail = TRUE; 178c579ef51Seric } 1792c7e1b8dSeric # endif QUEUE 1802c7e1b8dSeric # else SMTP 181*33db8731Seric /* oops! we don't implement SMTP */ 1822c7e1b8dSeric syserr("SMTP style mailer"); 1832c7e1b8dSeric return (EX_SOFTWARE); 1842c7e1b8dSeric # endif SMTP 185c579ef51Seric } 1865dfc646bSeric 1875dfc646bSeric /* 1885dfc646bSeric ** At this point *mvp points to the argument with $u. We 1895dfc646bSeric ** run through our address list and append all the addresses 1905dfc646bSeric ** we can. If we run out of space, do not fret! We can 1915dfc646bSeric ** always send another copy later. 1925dfc646bSeric */ 1935dfc646bSeric 1945dfc646bSeric tobuf[0] = '\0'; 1955dfc646bSeric To = tobuf; 1966259796dSeric ctladdr = NULL; 1975dfc646bSeric for (; to != NULL; to = to->q_next) 1985dfc646bSeric { 1995dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 200bea22b26Seric if (tobuf[0] != '\0' && !bitset(M_MUSER, m->m_flags)) 2015dfc646bSeric break; 2025dfc646bSeric 2035dfc646bSeric /* if already sent or not for this host, don't send */ 204e77e673fSeric if ((!ForceMail && bitset(QDONTSEND, to->q_flags)) || 205e77e673fSeric strcmp(to->q_host, host) != 0 || to->q_mailer != firstto->q_mailer) 2065dfc646bSeric continue; 2076259796dSeric 208772e6e50Seric # ifdef DEBUG 209772e6e50Seric if (Debug) 210772e6e50Seric { 211772e6e50Seric printf("\nsend to "); 212772e6e50Seric printaddr(to, FALSE); 213772e6e50Seric } 214772e6e50Seric # endif DEBUG 215772e6e50Seric 216772e6e50Seric /* link together the chain of recipients */ 217772e6e50Seric if (!bitset(QDONTSEND, to->q_flags)) 218772e6e50Seric { 219772e6e50Seric to->q_tchain = tochain; 220772e6e50Seric tochain = to; 221772e6e50Seric } 222772e6e50Seric 2236259796dSeric /* compute effective uid/gid when sending */ 2247da1035fSeric if (to->q_mailer == ProgMailer) 2256259796dSeric ctladdr = getctladdr(to); 2266259796dSeric 2275dfc646bSeric user = to->q_user; 2285dfc646bSeric To = to->q_paddr; 2295dfc646bSeric to->q_flags |= QDONTSEND; 230c579ef51Seric if (tempfail) 231772e6e50Seric { 232c579ef51Seric to->q_flags |= QQUEUEUP; 233772e6e50Seric continue; 234772e6e50Seric } 2355dfc646bSeric 2365dfc646bSeric /* 2375dfc646bSeric ** Check to see that these people are allowed to 2385dfc646bSeric ** talk to each other. 2392a6e0786Seric */ 2402a6e0786Seric 2412a6e0786Seric if (!checkcompat(to)) 2425dfc646bSeric { 2435dfc646bSeric giveresponse(EX_UNAVAILABLE, TRUE, m); 2445dfc646bSeric continue; 2455dfc646bSeric } 2462a6e0786Seric 2472a6e0786Seric /* 2489ec9501bSeric ** Strip quote bits from names if the mailer is dumb 2499ec9501bSeric ** about them. 25025a99e2eSeric */ 25125a99e2eSeric 2522a6e0786Seric if (bitset(M_STRIPQ, m->m_flags)) 25325a99e2eSeric { 2549ec9501bSeric stripquotes(user, TRUE); 2559ec9501bSeric stripquotes(host, TRUE); 2569ec9501bSeric } 2579ec9501bSeric else 2589ec9501bSeric { 2599ec9501bSeric stripquotes(user, FALSE); 2609ec9501bSeric stripquotes(host, FALSE); 26125a99e2eSeric } 26225a99e2eSeric 26325a99e2eSeric /* 2643efaed6eSeric ** If an error message has already been given, don't 2653efaed6eSeric ** bother to send to this address. 2663efaed6eSeric ** 2673efaed6eSeric ** >>>>>>>>>> This clause assumes that the local mailer 2683efaed6eSeric ** >> NOTE >> cannot do any further aliasing; that 2693efaed6eSeric ** >>>>>>>>>> function is subsumed by sendmail. 2703efaed6eSeric */ 2713efaed6eSeric 2723efaed6eSeric if (bitset(QBADADDR, to->q_flags)) 2733efaed6eSeric continue; 2743efaed6eSeric 275f2fec898Seric /* save statistics.... */ 2767da1035fSeric Stat.stat_nt[to->q_mailer->m_mno]++; 2777da1035fSeric Stat.stat_bt[to->q_mailer->m_mno] += kbytes(MsgSize); 278f2fec898Seric 2793efaed6eSeric /* 28025a99e2eSeric ** See if this user name is "special". 28125a99e2eSeric ** If the user name has a slash in it, assume that this 28225a99e2eSeric ** is a file -- send it off without further ado. 28325a99e2eSeric ** Note that this means that editfcn's will not 2845dfc646bSeric ** be applied to the message. Also note that 2855dfc646bSeric ** this type of addresses is not processed along 2865dfc646bSeric ** with the others, so we fudge on the To person. 28725a99e2eSeric */ 28825a99e2eSeric 2897da1035fSeric if (m == LocalMailer) 29025a99e2eSeric { 291a49f24c0Seric if (user[0] == '/') 29225a99e2eSeric { 2936259796dSeric i = mailfile(user, getctladdr(to)); 29425a99e2eSeric giveresponse(i, TRUE, m); 2955dfc646bSeric continue; 29625a99e2eSeric } 29725a99e2eSeric } 29825a99e2eSeric 29913bbc08cSeric /* 30013bbc08cSeric ** Address is verified -- add this user to mailer 30113bbc08cSeric ** argv, and add it to the print list of recipients. 30213bbc08cSeric */ 30313bbc08cSeric 3045dfc646bSeric /* create list of users for error messages */ 3055dfc646bSeric if (tobuf[0] != '\0') 306db8841e9Seric (void) strcat(tobuf, ","); 307db8841e9Seric (void) strcat(tobuf, to->q_paddr); 3085dfc646bSeric define('u', user); /* to user */ 309c2567733Seric define('z', to->q_home); /* user's home */ 3105dfc646bSeric 311c579ef51Seric /* 312c579ef51Seric ** Expand out this user into argument list or 313c579ef51Seric ** send it to our SMTP server. 314c579ef51Seric */ 315c579ef51Seric 316c579ef51Seric if (clever) 317c579ef51Seric { 3182c7e1b8dSeric # ifdef SMTP 319d2b7d202Seric i = smtprcpt(to); 3202c7e1b8dSeric if (i != EX_OK) 3212c7e1b8dSeric { 3222c7e1b8dSeric # ifdef QUEUE 323c579ef51Seric if (i == EX_TEMPFAIL) 324c579ef51Seric { 325c579ef51Seric QueueUp = TRUE; 326c579ef51Seric to->q_flags |= QQUEUEUP; 327c579ef51Seric } 3282c7e1b8dSeric else 3292c7e1b8dSeric # endif QUEUE 330c579ef51Seric { 331c579ef51Seric to->q_flags |= QBADADDR; 332c579ef51Seric giveresponse(i, TRUE, m); 333c579ef51Seric } 334c579ef51Seric } 3352c7e1b8dSeric # else SMTP 3362c7e1b8dSeric syserr("trying to be clever"); 3372c7e1b8dSeric # endif SMTP 3382c7e1b8dSeric } 339c579ef51Seric else 340c579ef51Seric { 341d4ccc802Seric (void) expand(*mvp, buf, &buf[sizeof buf - 1]); 3425dfc646bSeric *pvp++ = newstr(buf); 3435dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 3445dfc646bSeric { 3455dfc646bSeric /* allow some space for trailing parms */ 3465dfc646bSeric break; 3475dfc646bSeric } 3485dfc646bSeric } 349c579ef51Seric } 3505dfc646bSeric 351145b49b1Seric /* see if any addresses still exist */ 352145b49b1Seric if (tobuf[0] == '\0') 353c579ef51Seric { 3542c7e1b8dSeric # ifdef SMTP 355c579ef51Seric if (clever) 356c579ef51Seric smtpquit(pv[0]); 3572c7e1b8dSeric # endif SMTP 358145b49b1Seric return (0); 359c579ef51Seric } 360145b49b1Seric 3615dfc646bSeric /* print out messages as full list */ 3625dfc646bSeric To = tobuf; 3635dfc646bSeric 3645dfc646bSeric /* 3655dfc646bSeric ** Fill out any parameters after the $u parameter. 3665dfc646bSeric */ 3675dfc646bSeric 368c579ef51Seric while (!clever && *++mvp != NULL) 3695dfc646bSeric { 370db8841e9Seric (void) expand(*mvp, buf, &buf[sizeof buf - 1]); 3715dfc646bSeric *pvp++ = newstr(buf); 3725dfc646bSeric if (pvp >= &pv[MAXPV]) 3735dfc646bSeric syserr("deliver: pv overflow after $u for %s", pv[0]); 3745dfc646bSeric } 3755dfc646bSeric *pvp++ = NULL; 3765dfc646bSeric 37725a99e2eSeric /* 37825a99e2eSeric ** Call the mailer. 3796328bdf7Seric ** The argument vector gets built, pipes 38025a99e2eSeric ** are created as necessary, and we fork & exec as 3816328bdf7Seric ** appropriate. 382c579ef51Seric ** If we are running SMTP, we just need to clean up. 38325a99e2eSeric */ 38425a99e2eSeric 3855dfc646bSeric if (editfcn == NULL) 3865dfc646bSeric editfcn = putmessage; 3876259796dSeric if (ctladdr == NULL) 3886259796dSeric ctladdr = &From; 3892c7e1b8dSeric # ifdef SMTP 390c579ef51Seric if (clever) 391c579ef51Seric { 392c579ef51Seric i = smtpfinish(m, editfcn); 393c579ef51Seric smtpquit(pv[0]); 394c579ef51Seric } 395c579ef51Seric else 3962c7e1b8dSeric # endif SMTP 3976259796dSeric i = sendoff(m, pv, editfcn, ctladdr); 3985dfc646bSeric 399c77d1c25Seric /* 400c77d1c25Seric ** If we got a temporary failure, arrange to queue the 401c77d1c25Seric ** addressees. 402c77d1c25Seric */ 403c77d1c25Seric 4042c7e1b8dSeric # ifdef QUEUE 405c77d1c25Seric if (i == EX_TEMPFAIL) 406c77d1c25Seric { 407c77d1c25Seric QueueUp = TRUE; 408772e6e50Seric for (to = tochain; to != NULL; to = to->q_tchain) 409c77d1c25Seric to->q_flags |= QQUEUEUP; 410c77d1c25Seric } 4112c7e1b8dSeric # endif QUEUE 412c77d1c25Seric 41335490626Seric errno = 0; 4145dfc646bSeric return (i); 41525a99e2eSeric } 4165dfc646bSeric /* 41732d19d43Seric ** DOFORK -- do a fork, retrying a couple of times on failure. 41832d19d43Seric ** 41932d19d43Seric ** This MUST be a macro, since after a vfork we are running 42032d19d43Seric ** two processes on the same stack!!! 42132d19d43Seric ** 42232d19d43Seric ** Parameters: 42332d19d43Seric ** none. 42432d19d43Seric ** 42532d19d43Seric ** Returns: 42632d19d43Seric ** From a macro??? You've got to be kidding! 42732d19d43Seric ** 42832d19d43Seric ** Side Effects: 42932d19d43Seric ** Modifies the ==> LOCAL <== variable 'pid', leaving: 43032d19d43Seric ** pid of child in parent, zero in child. 43132d19d43Seric ** -1 on unrecoverable error. 43232d19d43Seric ** 43332d19d43Seric ** Notes: 43432d19d43Seric ** I'm awfully sorry this looks so awful. That's 43532d19d43Seric ** vfork for you..... 43632d19d43Seric */ 43732d19d43Seric 43832d19d43Seric # define NFORKTRIES 5 43932d19d43Seric # ifdef VFORK 44032d19d43Seric # define XFORK vfork 44132d19d43Seric # else VFORK 44232d19d43Seric # define XFORK fork 44332d19d43Seric # endif VFORK 44432d19d43Seric 44532d19d43Seric # define DOFORK(fORKfN) \ 44632d19d43Seric {\ 44732d19d43Seric register int i;\ 44832d19d43Seric \ 44932d19d43Seric for (i = NFORKTRIES; i-- > 0; )\ 45032d19d43Seric {\ 45132d19d43Seric pid = fORKfN();\ 45232d19d43Seric if (pid >= 0)\ 45332d19d43Seric break;\ 45432d19d43Seric sleep((unsigned) NFORKTRIES - i);\ 45532d19d43Seric }\ 45632d19d43Seric } 45732d19d43Seric /* 4582ed72599Seric ** DOFORK -- simple fork interface to DOFORK. 4592ed72599Seric ** 4602ed72599Seric ** Parameters: 4612ed72599Seric ** none. 4622ed72599Seric ** 4632ed72599Seric ** Returns: 4642ed72599Seric ** pid of child in parent. 4652ed72599Seric ** zero in child. 4662ed72599Seric ** -1 on error. 4672ed72599Seric ** 4682ed72599Seric ** Side Effects: 4692ed72599Seric ** returns twice, once in parent and once in child. 4702ed72599Seric */ 4712ed72599Seric 4722ed72599Seric dofork() 4732ed72599Seric { 4742ed72599Seric register int pid; 4752ed72599Seric 4762ed72599Seric DOFORK(fork); 4772ed72599Seric return (pid); 4782ed72599Seric } 4792ed72599Seric /* 4805dfc646bSeric ** SENDOFF -- send off call to mailer & collect response. 4815dfc646bSeric ** 4825dfc646bSeric ** Parameters: 4835dfc646bSeric ** m -- mailer descriptor. 4845dfc646bSeric ** pvp -- parameter vector to send to it. 4855dfc646bSeric ** editfcn -- function to pipe it through. 4866259796dSeric ** ctladdr -- an address pointer controlling the 4876259796dSeric ** user/groupid etc. of the mailer. 4885dfc646bSeric ** 4895dfc646bSeric ** Returns: 4905dfc646bSeric ** exit status of mailer. 4915dfc646bSeric ** 4925dfc646bSeric ** Side Effects: 4935dfc646bSeric ** none. 4945dfc646bSeric */ 4955dfc646bSeric 4966259796dSeric sendoff(m, pvp, editfcn, ctladdr) 4975dfc646bSeric struct mailer *m; 4985dfc646bSeric char **pvp; 4995dfc646bSeric int (*editfcn)(); 5006259796dSeric ADDRESS *ctladdr; 5015dfc646bSeric { 502c579ef51Seric auto FILE *mfile; 503c579ef51Seric auto FILE *rfile; 5045dfc646bSeric register int i; 505c579ef51Seric extern putmessage(); 506c579ef51Seric int pid; 507c579ef51Seric 508c579ef51Seric /* 509c579ef51Seric ** Create connection to mailer. 510c579ef51Seric */ 511c579ef51Seric 512c579ef51Seric pid = openmailer(m, pvp, ctladdr, FALSE, &mfile, &rfile); 513c579ef51Seric if (pid < 0) 514c579ef51Seric return (-1); 515c579ef51Seric 516c579ef51Seric /* 517c579ef51Seric ** Format and send message. 518c579ef51Seric */ 519c579ef51Seric 520c579ef51Seric (void) signal(SIGPIPE, SIG_IGN); 521c579ef51Seric if (editfcn == NULL) 522c579ef51Seric editfcn = putmessage; 523c579ef51Seric 524c579ef51Seric (*editfcn)(mfile, m, FALSE); 525c579ef51Seric (void) fclose(mfile); 526c579ef51Seric 527c579ef51Seric i = endmailer(pid, pvp[0]); 528c579ef51Seric giveresponse(i, TRUE, m); 529bc6e2962Seric 530bc6e2962Seric /* arrange a return receipt if requested */ 531bc6e2962Seric if (RetReceipt && bitset(M_LOCAL, m->m_flags) && i == EX_OK) 532bc6e2962Seric { 533bc6e2962Seric SendReceipt = TRUE; 534bc6e2962Seric fprintf(Xscript, "%s... successfully delivered\n", To); 535bc6e2962Seric /* do we want to send back more info? */ 536bc6e2962Seric } 537bc6e2962Seric 538c579ef51Seric return (i); 539c579ef51Seric } 540c579ef51Seric /* 541c579ef51Seric ** ENDMAILER -- Wait for mailer to terminate. 542c579ef51Seric ** 543c579ef51Seric ** We should never get fatal errors (e.g., segmentation 544c579ef51Seric ** violation), so we report those specially. For other 545c579ef51Seric ** errors, we choose a status message (into statmsg), 546c579ef51Seric ** and if it represents an error, we print it. 547c579ef51Seric ** 548c579ef51Seric ** Parameters: 549c579ef51Seric ** pid -- pid of mailer. 550c579ef51Seric ** name -- name of mailer (for error messages). 551c579ef51Seric ** 552c579ef51Seric ** Returns: 553c579ef51Seric ** exit code of mailer. 554c579ef51Seric ** 555c579ef51Seric ** Side Effects: 556c579ef51Seric ** none. 557c579ef51Seric */ 558c579ef51Seric 559c579ef51Seric endmailer(pid, name) 560c579ef51Seric int pid; 561c579ef51Seric char *name; 562c579ef51Seric { 563c579ef51Seric register int i; 564c579ef51Seric auto int st; 565c579ef51Seric 566*33db8731Seric /* in the IPC case there is nothing to wait for */ 567*33db8731Seric if (pid == 0) 568*33db8731Seric return (EX_OK); 569*33db8731Seric 570*33db8731Seric /* wait for the mailer process to die and collect status */ 571c579ef51Seric while ((i = wait(&st)) > 0 && i != pid) 572c579ef51Seric continue; 573c579ef51Seric if (i < 0) 574c579ef51Seric { 575c579ef51Seric syserr("wait"); 576c579ef51Seric return (-1); 577c579ef51Seric } 578*33db8731Seric 579*33db8731Seric /* see if it died a horrid death */ 580c579ef51Seric if ((st & 0377) != 0) 581c579ef51Seric { 582c579ef51Seric syserr("%s: stat %o", name, st); 583c579ef51Seric ExitStat = EX_UNAVAILABLE; 584c579ef51Seric return (-1); 585c579ef51Seric } 586*33db8731Seric 587*33db8731Seric /* normal death -- return status */ 588c579ef51Seric i = (st >> 8) & 0377; 589c579ef51Seric return (i); 590c579ef51Seric } 591c579ef51Seric /* 592c579ef51Seric ** OPENMAILER -- open connection to mailer. 593c579ef51Seric ** 594c579ef51Seric ** Parameters: 595c579ef51Seric ** m -- mailer descriptor. 596c579ef51Seric ** pvp -- parameter vector to pass to mailer. 597c579ef51Seric ** ctladdr -- controlling address for user. 598c579ef51Seric ** clever -- create a full duplex connection. 599c579ef51Seric ** pmfile -- pointer to mfile (to mailer) connection. 600c579ef51Seric ** prfile -- pointer to rfile (from mailer) connection. 601c579ef51Seric ** 602c579ef51Seric ** Returns: 603*33db8731Seric ** pid of mailer ( > 0 ). 604c579ef51Seric ** -1 on error. 605*33db8731Seric ** zero on an IPC connection. 606c579ef51Seric ** 607c579ef51Seric ** Side Effects: 608c579ef51Seric ** creates a mailer in a subprocess. 609c579ef51Seric */ 610c579ef51Seric 611c579ef51Seric openmailer(m, pvp, ctladdr, clever, pmfile, prfile) 612c579ef51Seric struct mailer *m; 613c579ef51Seric char **pvp; 614c579ef51Seric ADDRESS *ctladdr; 615c579ef51Seric bool clever; 616c579ef51Seric FILE **pmfile; 617c579ef51Seric FILE **prfile; 618c579ef51Seric { 6195dfc646bSeric int pid; 620f8952a83Seric int mpvect[2]; 621c579ef51Seric int rpvect[2]; 6225dfc646bSeric FILE *mfile; 623c579ef51Seric FILE *rfile; 6245dfc646bSeric extern FILE *fdopen(); 6255dfc646bSeric 6265dfc646bSeric # ifdef DEBUG 6275dfc646bSeric if (Debug) 6285dfc646bSeric { 629c579ef51Seric printf("openmailer:\n"); 6305dfc646bSeric printav(pvp); 6315dfc646bSeric } 6325dfc646bSeric # endif DEBUG 63335490626Seric errno = 0; 6345dfc646bSeric 635*33db8731Seric # ifdef DAEMON 636*33db8731Seric /* 637*33db8731Seric ** Deal with the special case of mail handled through an IPC 638*33db8731Seric ** connection. 639*33db8731Seric ** In this case we don't actually fork. We must be 640*33db8731Seric ** running SMTP for this to work. We will return a 641*33db8731Seric ** zero pid to indicate that we are running IPC. 642*33db8731Seric */ 643*33db8731Seric 644*33db8731Seric if (strcmp(m->m_mailer, "[IPC]") == 0) 645*33db8731Seric { 646*33db8731Seric register int i; 647*33db8731Seric 648*33db8731Seric if (!clever) 649*33db8731Seric syserr("non-clever IPC"); 650*33db8731Seric i = makeconnection(pvp[1], pmfile, prfile); 651*33db8731Seric if (i != EX_OK) 652*33db8731Seric return (-1); 653*33db8731Seric else 654*33db8731Seric return (0); 655*33db8731Seric } 656*33db8731Seric # endif DAEMON 657*33db8731Seric 6586328bdf7Seric /* create a pipe to shove the mail through */ 659f8952a83Seric if (pipe(mpvect) < 0) 66025a99e2eSeric { 661c579ef51Seric syserr("pipe (to mailer)"); 66225a99e2eSeric return (-1); 66325a99e2eSeric } 664c579ef51Seric 6652c7e1b8dSeric # ifdef SMTP 666c579ef51Seric /* if this mailer speaks smtp, create a return pipe */ 667c579ef51Seric if (clever && pipe(rpvect) < 0) 668c579ef51Seric { 669c579ef51Seric syserr("pipe (from mailer)"); 670c579ef51Seric (void) close(mpvect[0]); 671c579ef51Seric (void) close(mpvect[1]); 672c579ef51Seric return (-1); 673c579ef51Seric } 6742c7e1b8dSeric # endif SMTP 675c579ef51Seric 676*33db8731Seric /* 677*33db8731Seric ** Actually fork the mailer process. 678*33db8731Seric ** DOFORK is clever about retrying. 679*33db8731Seric */ 680*33db8731Seric 68132d19d43Seric DOFORK(XFORK); 682f129ec7dSeric /* pid is set by DOFORK */ 68325a99e2eSeric if (pid < 0) 68425a99e2eSeric { 685*33db8731Seric /* failure */ 68625a99e2eSeric syserr("Cannot fork"); 687f8952a83Seric (void) close(mpvect[0]); 688f8952a83Seric (void) close(mpvect[1]); 689c579ef51Seric if (clever) 690c579ef51Seric { 691c579ef51Seric (void) close(rpvect[0]); 692c579ef51Seric (void) close(rpvect[1]); 693c579ef51Seric } 69425a99e2eSeric return (-1); 69525a99e2eSeric } 69625a99e2eSeric else if (pid == 0) 69725a99e2eSeric { 69825a99e2eSeric /* child -- set up input & exec mailer */ 69903ab8e55Seric /* make diagnostic output be standard output */ 7008f0e7860Seric (void) signal(SIGINT, SIG_IGN); 7018f0e7860Seric (void) signal(SIGHUP, SIG_IGN); 7020984da9fSeric (void) signal(SIGTERM, SIG_DFL); 703f8952a83Seric 704f8952a83Seric /* arrange to filter standard & diag output of command */ 705c579ef51Seric if (clever) 706c579ef51Seric { 707c579ef51Seric (void) close(rpvect[0]); 708c579ef51Seric (void) close(1); 709c579ef51Seric (void) dup(rpvect[1]); 710c579ef51Seric (void) close(rpvect[1]); 711c579ef51Seric } 712c579ef51Seric else if (OutChannel != stdout) 713f8952a83Seric { 714f8952a83Seric (void) close(1); 715f8952a83Seric (void) dup(fileno(OutChannel)); 716f8952a83Seric } 717db8841e9Seric (void) close(2); 718db8841e9Seric (void) dup(1); 719f8952a83Seric 720f8952a83Seric /* arrange to get standard input */ 721f8952a83Seric (void) close(mpvect[1]); 722db8841e9Seric (void) close(0); 723f8952a83Seric if (dup(mpvect[0]) < 0) 72425a99e2eSeric { 72525a99e2eSeric syserr("Cannot dup to zero!"); 726a590b978Seric _exit(EX_OSERR); 72725a99e2eSeric } 728f8952a83Seric (void) close(mpvect[0]); 7292a6e0786Seric if (!bitset(M_RESTR, m->m_flags)) 7300984da9fSeric { 731e36b99e2Seric if (ctladdr->q_uid == 0) 732e36b99e2Seric { 733e36b99e2Seric (void) setgid(DefGid); 734e36b99e2Seric (void) setuid(DefUid); 735e36b99e2Seric } 736e36b99e2Seric else 73769f29479Seric { 738e36b99e2Seric (void) setgid(ctladdr->q_gid); 739e36b99e2Seric (void) setuid(ctladdr->q_uid); 74069f29479Seric } 7410984da9fSeric } 742e374fd72Seric # ifndef VFORK 743e374fd72Seric /* 744e374fd72Seric ** We have to be careful with vfork - we can't mung up the 745e374fd72Seric ** memory but we don't want the mailer to inherit any extra 746e374fd72Seric ** open files. Chances are the mailer won't 747e374fd72Seric ** care about an extra file, but then again you never know. 748e374fd72Seric ** Actually, we would like to close(fileno(pwf)), but it's 749e374fd72Seric ** declared static so we can't. But if we fclose(pwf), which 750e374fd72Seric ** is what endpwent does, it closes it in the parent too and 751e374fd72Seric ** the next getpwnam will be slower. If you have a weird 752e374fd72Seric ** mailer that chokes on the extra file you should do the 753e374fd72Seric ** endpwent(). 754e374fd72Seric ** 755e374fd72Seric ** Similar comments apply to log. However, openlog is 756e374fd72Seric ** clever enough to set the FIOCLEX mode on the file, 757e374fd72Seric ** so it will be closed automatically on the exec. 758e374fd72Seric */ 759e374fd72Seric 760e374fd72Seric endpwent(); 76125a99e2eSeric # ifdef LOG 762f9fe028fSeric closelog(); 76325a99e2eSeric # endif LOG 764e374fd72Seric # endif VFORK 765*33db8731Seric 766*33db8731Seric /* try to execute the mailer */ 76725a99e2eSeric execv(m->m_mailer, pvp); 768*33db8731Seric 76925a99e2eSeric /* syserr fails because log is closed */ 77025a99e2eSeric /* syserr("Cannot exec %s", m->m_mailer); */ 77132d19d43Seric printf("Cannot exec '%s' errno=%d\n", m->m_mailer, errno); 772db8841e9Seric (void) fflush(stdout); 773a590b978Seric _exit(EX_UNAVAILABLE); 77425a99e2eSeric } 77525a99e2eSeric 776f8952a83Seric /* 777c579ef51Seric ** Set up return value. 778f8952a83Seric */ 779f8952a83Seric 780f8952a83Seric (void) close(mpvect[0]); 781f8952a83Seric mfile = fdopen(mpvect[1], "w"); 782c579ef51Seric if (clever) 78325a99e2eSeric { 784c579ef51Seric (void) close(rpvect[1]); 785c579ef51Seric rfile = fdopen(rpvect[0], "r"); 78625a99e2eSeric } 787c579ef51Seric 788c579ef51Seric *pmfile = mfile; 789c579ef51Seric *prfile = rfile; 790c579ef51Seric 791c579ef51Seric return (pid); 79225a99e2eSeric } 79325a99e2eSeric /* 79425a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 79525a99e2eSeric ** 79625a99e2eSeric ** Parameters: 79725a99e2eSeric ** stat -- the status code from the mailer (high byte 79825a99e2eSeric ** only; core dumps must have been taken care of 79925a99e2eSeric ** already). 80025a99e2eSeric ** force -- if set, force an error message output, even 80125a99e2eSeric ** if the mailer seems to like to print its own 80225a99e2eSeric ** messages. 80325a99e2eSeric ** m -- the mailer descriptor for this mailer. 80425a99e2eSeric ** 80525a99e2eSeric ** Returns: 806db8841e9Seric ** none. 80725a99e2eSeric ** 80825a99e2eSeric ** Side Effects: 809c1f9df2cSeric ** Errors may be incremented. 81025a99e2eSeric ** ExitStat may be set. 81125a99e2eSeric */ 81225a99e2eSeric 81325a99e2eSeric giveresponse(stat, force, m) 81425a99e2eSeric int stat; 81525a99e2eSeric int force; 81625a99e2eSeric register struct mailer *m; 81725a99e2eSeric { 81825a99e2eSeric register char *statmsg; 81925a99e2eSeric extern char *SysExMsg[]; 82025a99e2eSeric register int i; 82125a99e2eSeric extern int N_SysEx; 82229dd97a3Seric char buf[30]; 82325a99e2eSeric 82413bbc08cSeric /* 82513bbc08cSeric ** Compute status message from code. 82613bbc08cSeric */ 82713bbc08cSeric 82825a99e2eSeric i = stat - EX__BASE; 82925a99e2eSeric if (i < 0 || i > N_SysEx) 83025a99e2eSeric statmsg = NULL; 83125a99e2eSeric else 83225a99e2eSeric statmsg = SysExMsg[i]; 83325a99e2eSeric if (stat == 0) 834c38ba59cSeric { 8356cbfa739Seric if (bitset(M_LOCAL, m->m_flags)) 8363efaed6eSeric statmsg = "delivered"; 8373efaed6eSeric else 8383efaed6eSeric statmsg = "queued"; 839c38ba59cSeric if (Verbose) 840544026c5Seric message(Arpa_Info, statmsg); 841c38ba59cSeric } 8422c7e1b8dSeric # ifdef QUEUE 843c77d1c25Seric else if (stat == EX_TEMPFAIL) 844c77d1c25Seric { 845c77d1c25Seric if (Verbose) 846c77d1c25Seric message(Arpa_Info, "transmission deferred"); 847c77d1c25Seric } 8482c7e1b8dSeric # endif QUEUE 84925a99e2eSeric else 85025a99e2eSeric { 851c1f9df2cSeric Errors++; 85225a99e2eSeric if (statmsg == NULL && m->m_badstat != 0) 85325a99e2eSeric { 85425a99e2eSeric stat = m->m_badstat; 85525a99e2eSeric i = stat - EX__BASE; 85625a99e2eSeric # ifdef DEBUG 85725a99e2eSeric if (i < 0 || i >= N_SysEx) 85825a99e2eSeric syserr("Bad m_badstat %d", stat); 85925a99e2eSeric else 86025a99e2eSeric # endif DEBUG 86125a99e2eSeric statmsg = SysExMsg[i]; 86225a99e2eSeric } 86325a99e2eSeric if (statmsg == NULL) 86425a99e2eSeric usrerr("unknown mailer response %d", stat); 865c38ba59cSeric else if (force || !bitset(M_QUIET, m->m_flags) || Verbose) 86625a99e2eSeric usrerr("%s", statmsg); 86725a99e2eSeric } 86825a99e2eSeric 86925a99e2eSeric /* 87025a99e2eSeric ** Final cleanup. 87125a99e2eSeric ** Log a record of the transaction. Compute the new 87225a99e2eSeric ** ExitStat -- if we already had an error, stick with 87325a99e2eSeric ** that. 87425a99e2eSeric */ 87525a99e2eSeric 87625a99e2eSeric if (statmsg == NULL) 87729dd97a3Seric { 878db8841e9Seric (void) sprintf(buf, "error %d", stat); 87929dd97a3Seric statmsg = buf; 88029dd97a3Seric } 88129dd97a3Seric 88229dd97a3Seric # ifdef LOG 883e374fd72Seric syslog(LOG_INFO, "%s->%s: %ld: %s", From.q_paddr, To, MsgSize, statmsg); 88425a99e2eSeric # endif LOG 8852c7e1b8dSeric # ifdef QUEUE 886c77d1c25Seric if (stat != EX_TEMPFAIL) 8872c7e1b8dSeric # endif QUEUE 888243921eeSeric setstat(stat); 88925a99e2eSeric } 89025a99e2eSeric /* 8916328bdf7Seric ** PUTMESSAGE -- output a message to the final mailer. 89225a99e2eSeric ** 8936328bdf7Seric ** This routine takes care of recreating the header from the 8946328bdf7Seric ** in-core copy, etc. 89525a99e2eSeric ** 89625a99e2eSeric ** Parameters: 8976328bdf7Seric ** fp -- file to output onto. 8986328bdf7Seric ** m -- a mailer descriptor. 899c579ef51Seric ** xdot -- if set, hide lines beginning with dot. 90025a99e2eSeric ** 90125a99e2eSeric ** Returns: 9026328bdf7Seric ** none. 90325a99e2eSeric ** 90425a99e2eSeric ** Side Effects: 9056328bdf7Seric ** The message is written onto fp. 90625a99e2eSeric */ 90725a99e2eSeric 908c579ef51Seric putmessage(fp, m, xdot) 9096328bdf7Seric FILE *fp; 9106328bdf7Seric struct mailer *m; 911c579ef51Seric bool xdot; 91225a99e2eSeric { 9136328bdf7Seric char buf[BUFSIZ]; 91425a99e2eSeric 91513bbc08cSeric /* 91613bbc08cSeric ** Output "From" line unless supressed 917a36e30c9Seric ** 918a36e30c9Seric ** >>>>>>>>>> One of the ugliest hacks seen by human eyes is 919a36e30c9Seric ** >>>>>>>>>> contained herein: UUCP wants those stupid 920bba2edb3Seric ** >>>>>>>>>> "remote from <host>" lines. Why oh why does a 921bba2edb3Seric ** >> NOTE >> well-meaning programmer such as myself have to 922a36e30c9Seric ** >>>>>>>>>> deal with this kind of antique garbage???? 923bba2edb3Seric ** >>>>>>>>>> This even depends on the local UUCP host name 924bba2edb3Seric ** >>>>>>>>>> being in the $U macro!!!! 92513bbc08cSeric */ 92613bbc08cSeric 92740e4ab56Seric if (!bitset(M_NHDR, m->m_flags)) 9281412cc7cSeric { 9292c7e1b8dSeric # ifdef UGLYUUCP 930a49f24c0Seric if (bitset(M_UGLYUUCP, m->m_flags)) 931bba2edb3Seric (void) expand("From $f $d remote from $U", buf, 932a36e30c9Seric &buf[sizeof buf - 1]); 933a36e30c9Seric else 9342c7e1b8dSeric # endif UGLYUUCP 9351412cc7cSeric (void) expand("$l", buf, &buf[sizeof buf - 1]); 9361412cc7cSeric fprintf(fp, "%s\n", buf); 9371412cc7cSeric } 93840e4ab56Seric 93913bbc08cSeric /* 94013bbc08cSeric ** Output all header lines 94113bbc08cSeric */ 94213bbc08cSeric 943bc6e2962Seric putheader(fp, m); 944bc6e2962Seric 945bc6e2962Seric /* 946bc6e2962Seric ** Output the body of the message 947bc6e2962Seric */ 948bc6e2962Seric 949bc6e2962Seric if (TempFile != NULL) 950bc6e2962Seric { 951bc6e2962Seric rewind(TempFile); 952bc6e2962Seric while (!ferror(fp) && fgets(buf, sizeof buf, TempFile) != NULL) 953bc6e2962Seric fprintf(fp, "%s%s", xdot && buf[0] == '.' ? "." : "", buf); 954bc6e2962Seric 955bc6e2962Seric if (ferror(TempFile)) 956bc6e2962Seric { 957bc6e2962Seric syserr("putmessage: read error"); 958bc6e2962Seric setstat(EX_IOERR); 959bc6e2962Seric } 960bc6e2962Seric } 961bc6e2962Seric 962bc6e2962Seric (void) fflush(fp); 963bc6e2962Seric if (ferror(fp) && errno != EPIPE) 964bc6e2962Seric { 965bc6e2962Seric syserr("putmessage: write error"); 966bc6e2962Seric setstat(EX_IOERR); 967bc6e2962Seric } 968bc6e2962Seric errno = 0; 969bc6e2962Seric } 970bc6e2962Seric /* 971bc6e2962Seric ** PUTHEADER -- put the header part of a message 972bc6e2962Seric ** 973bc6e2962Seric ** Parameters: 974bc6e2962Seric ** fp -- file to put it on. 975bc6e2962Seric ** m -- mailer to use. 976bc6e2962Seric ** 977bc6e2962Seric ** Returns: 978bc6e2962Seric ** none. 979bc6e2962Seric ** 980bc6e2962Seric ** Side Effects: 981bc6e2962Seric ** none. 982bc6e2962Seric */ 983bc6e2962Seric 984bc6e2962Seric putheader(fp, m) 985bc6e2962Seric register FILE *fp; 986bc6e2962Seric register struct mailer *m; 987bc6e2962Seric { 988bc6e2962Seric char buf[BUFSIZ]; 989bc6e2962Seric register HDR *h; 990bc6e2962Seric extern char *arpadate(); 991bc6e2962Seric bool anyheader = FALSE; 992bc6e2962Seric extern char *capitalize(); 993bc6e2962Seric extern char *hvalue(); 994bc6e2962Seric extern bool samefrom(); 995bc6e2962Seric char *of_line; 996bc6e2962Seric 997894de7daSeric of_line = hvalue("original-from"); 9986328bdf7Seric for (h = Header; h != NULL; h = h->h_link) 9996328bdf7Seric { 100013bbc08cSeric register char *p; 100187bd9a02Seric char *origfrom = OrigFrom; 1002894de7daSeric bool nooutput; 100313bbc08cSeric 1004894de7daSeric nooutput = FALSE; 10059e9163a0Seric if (bitset(H_CHECK|H_ACHECK, h->h_flags) && !bitset(h->h_mflags, m->m_flags)) 1006894de7daSeric nooutput = TRUE; 1007894de7daSeric 1008894de7daSeric /* use From: line from message if generated is the same */ 100987bd9a02Seric if (strcmp(h->h_field, "from") == 0 && origfrom != NULL && 1010894de7daSeric strcmp(m->m_from, "$f") == 0 && of_line == NULL) 101187bd9a02Seric { 101287bd9a02Seric p = origfrom; 101387bd9a02Seric origfrom = NULL; 101487bd9a02Seric } 101587bd9a02Seric else if (bitset(H_DEFAULT, h->h_flags)) 10164ae18d0eSeric { 1017db8841e9Seric (void) expand(h->h_value, buf, &buf[sizeof buf]); 10184ae18d0eSeric p = buf; 10194ae18d0eSeric } 10208c2bf25bSeric else if (bitset(H_ADDR, h->h_flags)) 10218c2bf25bSeric { 10228c2bf25bSeric register int opos; 10238c2bf25bSeric bool firstone = TRUE; 10248c2bf25bSeric 10258c2bf25bSeric /* 10268c2bf25bSeric ** Output the address list translated by the 10278c2bf25bSeric ** mailer and with commas. 10288c2bf25bSeric */ 10298c2bf25bSeric 10308c2bf25bSeric p = h->h_value; 10318c2bf25bSeric if (p == NULL || *p == '\0' || nooutput) 10328c2bf25bSeric continue; 10338c2bf25bSeric fprintf(fp, "%s: ", capitalize(h->h_field)); 10348c2bf25bSeric opos = strlen(h->h_field) + 2; 10358c2bf25bSeric while (*p != '\0') 10368c2bf25bSeric { 10378c2bf25bSeric register char *name = p; 10388c2bf25bSeric extern char *remotename(); 10398c2bf25bSeric char savechar; 10408c2bf25bSeric 10418c2bf25bSeric /* find the end of the name */ 1042bc28c57aSeric while (*p != '\0' && *p != ',') 1043bc28c57aSeric { 1044bc28c57aSeric extern bool isatword(); 1045bc28c57aSeric char *oldp; 1046bc28c57aSeric 1047bc28c57aSeric if (!OldStyle || !isspace(*p)) 1048bc28c57aSeric { 10498c2bf25bSeric p++; 1050bc28c57aSeric continue; 1051bc28c57aSeric } 1052bc28c57aSeric oldp = p; 1053bc28c57aSeric while (*p != '\0' && isspace(*p)) 1054bc28c57aSeric p++; 1055bc28c57aSeric if (*p != '@' && !isatword(p)) 1056bc28c57aSeric { 1057bc28c57aSeric p = oldp; 1058bc28c57aSeric break; 1059bc28c57aSeric } 1060bc28c57aSeric p += *p == '@' ? 1 : 2; 1061bc28c57aSeric while (*p != '\0' && isspace(*p)) 1062bc28c57aSeric p++; 1063bc28c57aSeric } 10648c2bf25bSeric savechar = *p; 10658c2bf25bSeric *p = '\0'; 10668c2bf25bSeric 10678c2bf25bSeric /* translate the name to be relative */ 1068bc213ac6Seric name = remotename(name, m); 10698c2bf25bSeric if (*name == '\0') 10708c2bf25bSeric continue; 10718c2bf25bSeric 10728c2bf25bSeric /* output the name with nice formatting */ 10738c2bf25bSeric opos += strlen(name); 10748c2bf25bSeric if (!firstone) 10758c2bf25bSeric opos += 2; 10768c2bf25bSeric if (opos > 78 && !firstone) 10778c2bf25bSeric { 10788c2bf25bSeric fprintf(fp, ",\n "); 1079bc213ac6Seric opos = 8 + strlen(name); 10808c2bf25bSeric } 10818c2bf25bSeric else if (!firstone) 10828c2bf25bSeric fprintf(fp, ", "); 10838c2bf25bSeric fprintf(fp, "%s", name); 10848c2bf25bSeric firstone = FALSE; 10858c2bf25bSeric 10868c2bf25bSeric /* clean up the source string */ 10878c2bf25bSeric *p = savechar; 10888c2bf25bSeric while (*p != '\0' && (isspace(*p) || *p == ',')) 10898c2bf25bSeric p++; 10908c2bf25bSeric } 10918c2bf25bSeric fprintf(fp, "\n"); 10928c2bf25bSeric nooutput = TRUE; 10938c2bf25bSeric } 10944ae18d0eSeric else 10954ae18d0eSeric p = h->h_value; 1096894de7daSeric if (p == NULL || *p == '\0') 10979e9163a0Seric continue; 10985a0dcb5fSeric 10995a0dcb5fSeric /* hack, hack -- output Original-From field if different */ 1100894de7daSeric if (strcmp(h->h_field, "from") == 0 && origfrom != NULL) 1101894de7daSeric { 1102894de7daSeric /* output new Original-From line if needed */ 1103894de7daSeric if (of_line == NULL && !samefrom(p, origfrom)) 11045a0dcb5fSeric { 110587bd9a02Seric fprintf(fp, "Original-From: %s\n", origfrom); 110687bd9a02Seric anyheader = TRUE; 11075a0dcb5fSeric } 1108894de7daSeric if (of_line != NULL && !nooutput && samefrom(p, of_line)) 1109894de7daSeric { 1110894de7daSeric /* delete Original-From: line if redundant */ 1111894de7daSeric p = of_line; 1112894de7daSeric of_line = NULL; 1113894de7daSeric } 1114894de7daSeric } 1115894de7daSeric else if (strcmp(h->h_field, "original-from") == 0 && of_line == NULL) 1116894de7daSeric nooutput = TRUE; 1117894de7daSeric 1118894de7daSeric /* finally, output the header line */ 1119894de7daSeric if (!nooutput) 1120894de7daSeric { 1121894de7daSeric fprintf(fp, "%s: %s\n", capitalize(h->h_field), p); 1122894de7daSeric h->h_flags |= H_USED; 1123894de7daSeric anyheader = TRUE; 1124894de7daSeric } 11256328bdf7Seric } 11266328bdf7Seric if (anyheader) 11276328bdf7Seric fprintf(fp, "\n"); 112825a99e2eSeric } 112925a99e2eSeric /* 1130bc28c57aSeric ** ISATWORD -- tell if the word we are pointing to is "at". 1131bc28c57aSeric ** 1132bc28c57aSeric ** Parameters: 1133bc28c57aSeric ** p -- word to check. 1134bc28c57aSeric ** 1135bc28c57aSeric ** Returns: 1136bc28c57aSeric ** TRUE -- if p is the word at. 1137bc28c57aSeric ** FALSE -- otherwise. 1138bc28c57aSeric ** 1139bc28c57aSeric ** Side Effects: 1140bc28c57aSeric ** none. 1141bc28c57aSeric */ 1142bc28c57aSeric 1143bc28c57aSeric bool 1144bc28c57aSeric isatword(p) 1145bc28c57aSeric register char *p; 1146bc28c57aSeric { 1147bc28c57aSeric extern char lower(); 1148bc28c57aSeric 1149bc28c57aSeric if (lower(p[0]) == 'a' && lower(p[1]) == 't' && 1150bc28c57aSeric p[2] != '\0' && isspace(p[2])) 1151bc28c57aSeric return (TRUE); 1152bc28c57aSeric return (FALSE); 1153bc28c57aSeric } 1154bc28c57aSeric /* 11558c2bf25bSeric ** REMOTENAME -- return the name relative to the current mailer 11568c2bf25bSeric ** 11578c2bf25bSeric ** Parameters: 11588c2bf25bSeric ** name -- the name to translate. 11598c2bf25bSeric ** 11608c2bf25bSeric ** Returns: 11618c2bf25bSeric ** the text string representing this address relative to 11628c2bf25bSeric ** the receiving mailer. 11638c2bf25bSeric ** 11648c2bf25bSeric ** Side Effects: 11658c2bf25bSeric ** none. 11668c2bf25bSeric ** 11678c2bf25bSeric ** Warnings: 11688c2bf25bSeric ** The text string returned is tucked away locally; 11698c2bf25bSeric ** copy it if you intend to save it. 11708c2bf25bSeric */ 11718c2bf25bSeric 11728c2bf25bSeric char * 1173bc213ac6Seric remotename(name, m) 11748c2bf25bSeric char *name; 1175bc213ac6Seric struct mailer *m; 11768c2bf25bSeric { 11778c2bf25bSeric static char buf[MAXNAME]; 11788c2bf25bSeric char lbuf[MAXNAME]; 11798c2bf25bSeric extern char *macvalue(); 11808c2bf25bSeric char *oldf = macvalue('f'); 1181bc213ac6Seric char *oldx = macvalue('x'); 1182bc213ac6Seric char *oldg = macvalue('g'); 11838c2bf25bSeric extern char **prescan(); 11848c2bf25bSeric register char **pvp; 1185bc213ac6Seric extern char *getxpart(); 11868c2bf25bSeric 11878c2bf25bSeric /* 11888c2bf25bSeric ** Do general rewriting of name. 11898c2bf25bSeric ** This will also take care of doing global name translation. 11908c2bf25bSeric */ 11918c2bf25bSeric 1192bc213ac6Seric define('x', getxpart(name)); 11938c2bf25bSeric pvp = prescan(name, '\0'); 11948c2bf25bSeric for (;;) 11958c2bf25bSeric { 11968c2bf25bSeric rewrite(pvp, 1); 11978c2bf25bSeric rewrite(pvp, 3); 11988c2bf25bSeric if (**pvp == CANONNET) 11998c2bf25bSeric { 12008c2bf25bSeric auto ADDRESS a; 12018c2bf25bSeric register char *p; 12028c2bf25bSeric extern char *hostalias(); 12038c2bf25bSeric 12048c2bf25bSeric /* oops... resolved to something */ 12058c2bf25bSeric if (buildaddr(pvp, &a) == NULL) 12068c2bf25bSeric return (name); 12078c2bf25bSeric p = hostalias(&a); 12088c2bf25bSeric if (p == NULL) 12098c2bf25bSeric return (name); 12108c2bf25bSeric pvp = prescan(p, '\0'); 12118c2bf25bSeric } 12128c2bf25bSeric else 12138c2bf25bSeric { 12148c2bf25bSeric cataddr(pvp, lbuf, sizeof lbuf); 12158c2bf25bSeric break; 12168c2bf25bSeric } 12178c2bf25bSeric } 12188c2bf25bSeric 12198c2bf25bSeric /* make the name relative to the receiving mailer */ 12208c2bf25bSeric define('f', lbuf); 1221bc213ac6Seric (void) expand(m->m_from, buf, &buf[sizeof buf - 1]); 12228c2bf25bSeric 12238c2bf25bSeric /* rewrite to get rid of garbage we added in the expand above */ 12248c2bf25bSeric pvp = prescan(buf, '\0'); 12258c2bf25bSeric rewrite(pvp, 2); 1226bc213ac6Seric cataddr(pvp, lbuf, sizeof lbuf); 1227bc213ac6Seric 1228bc213ac6Seric /* now add any comment info we had before back */ 1229bc213ac6Seric define('g', lbuf); 1230bc213ac6Seric (void) expand("$q", buf, &buf[sizeof buf - 1]); 12318c2bf25bSeric 12328c2bf25bSeric define('f', oldf); 1233bc213ac6Seric define('g', oldg); 1234bc213ac6Seric define('x', oldx); 12358c2bf25bSeric 12368c2bf25bSeric # ifdef DEBUG 12378c2bf25bSeric if (Debug > 0) 12388c2bf25bSeric printf("remotename(%s) => `%s'\n", name, buf); 12398c2bf25bSeric # endif DEBUG 12408c2bf25bSeric return (buf); 12418c2bf25bSeric } 12428c2bf25bSeric /* 124387bd9a02Seric ** SAMEFROM -- tell if two text addresses represent the same from address. 124487bd9a02Seric ** 124587bd9a02Seric ** Parameters: 124687bd9a02Seric ** ifrom -- internally generated form of from address. 124787bd9a02Seric ** efrom -- external form of from address. 124887bd9a02Seric ** 124987bd9a02Seric ** Returns: 125087bd9a02Seric ** TRUE -- if they convey the same info. 125187bd9a02Seric ** FALSE -- if any information has been lost. 125287bd9a02Seric ** 125387bd9a02Seric ** Side Effects: 125487bd9a02Seric ** none. 125587bd9a02Seric */ 125687bd9a02Seric 125787bd9a02Seric bool 125887bd9a02Seric samefrom(ifrom, efrom) 125987bd9a02Seric char *ifrom; 126087bd9a02Seric char *efrom; 126187bd9a02Seric { 1262894de7daSeric register char *p; 1263894de7daSeric char buf[MAXNAME + 4]; 1264894de7daSeric 1265894de7daSeric # ifdef DEBUG 1266894de7daSeric if (Debug > 7) 1267894de7daSeric printf("samefrom(%s,%s)-->", ifrom, efrom); 1268894de7daSeric # endif DEBUG 1269894de7daSeric if (strcmp(ifrom, efrom) == 0) 1270894de7daSeric goto success; 1271894de7daSeric p = index(ifrom, '@'); 1272894de7daSeric if (p == NULL) 1273894de7daSeric goto failure; 1274894de7daSeric *p = '\0'; 1275894de7daSeric strcpy(buf, ifrom); 1276894de7daSeric strcat(buf, " at "); 1277894de7daSeric *p++ = '@'; 1278894de7daSeric strcat(buf, p); 1279894de7daSeric if (strcmp(buf, efrom) == 0) 1280894de7daSeric goto success; 1281894de7daSeric 1282894de7daSeric failure: 1283894de7daSeric # ifdef DEBUG 1284894de7daSeric if (Debug > 7) 1285894de7daSeric printf("FALSE\n"); 1286894de7daSeric # endif DEBUG 1287894de7daSeric return (FALSE); 1288894de7daSeric 1289894de7daSeric success: 1290894de7daSeric # ifdef DEBUG 1291894de7daSeric if (Debug > 7) 1292894de7daSeric printf("TRUE\n"); 1293894de7daSeric # endif DEBUG 1294894de7daSeric return (TRUE); 129587bd9a02Seric } 129687bd9a02Seric /* 129725a99e2eSeric ** MAILFILE -- Send a message to a file. 129825a99e2eSeric ** 1299f129ec7dSeric ** If the file has the setuid/setgid bits set, but NO execute 1300f129ec7dSeric ** bits, sendmail will try to become the owner of that file 1301f129ec7dSeric ** rather than the real user. Obviously, this only works if 1302f129ec7dSeric ** sendmail runs as root. 1303f129ec7dSeric ** 130425a99e2eSeric ** Parameters: 130525a99e2eSeric ** filename -- the name of the file to send to. 13066259796dSeric ** ctladdr -- the controlling address header -- includes 13076259796dSeric ** the userid/groupid to be when sending. 130825a99e2eSeric ** 130925a99e2eSeric ** Returns: 131025a99e2eSeric ** The exit code associated with the operation. 131125a99e2eSeric ** 131225a99e2eSeric ** Side Effects: 131325a99e2eSeric ** none. 131425a99e2eSeric */ 131525a99e2eSeric 13166259796dSeric mailfile(filename, ctladdr) 131725a99e2eSeric char *filename; 13186259796dSeric ADDRESS *ctladdr; 131925a99e2eSeric { 132025a99e2eSeric register FILE *f; 132132d19d43Seric register int pid; 132225a99e2eSeric 132332d19d43Seric /* 132432d19d43Seric ** Fork so we can change permissions here. 132532d19d43Seric ** Note that we MUST use fork, not vfork, because of 132632d19d43Seric ** the complications of calling subroutines, etc. 132732d19d43Seric */ 132832d19d43Seric 132932d19d43Seric DOFORK(fork); 133032d19d43Seric 133132d19d43Seric if (pid < 0) 133232d19d43Seric return (EX_OSERR); 133332d19d43Seric else if (pid == 0) 133432d19d43Seric { 133532d19d43Seric /* child -- actually write to file */ 1336f129ec7dSeric struct stat stb; 1337f129ec7dSeric 13380984da9fSeric (void) signal(SIGINT, SIG_DFL); 13390984da9fSeric (void) signal(SIGHUP, SIG_DFL); 13400984da9fSeric (void) signal(SIGTERM, SIG_DFL); 1341f129ec7dSeric umask(OldUmask); 1342f129ec7dSeric if (stat(filename, &stb) < 0) 1343e6e1265fSeric stb.st_mode = 0666; 1344f129ec7dSeric if (bitset(0111, stb.st_mode)) 1345f129ec7dSeric exit(EX_CANTCREAT); 134603827b5fSeric if (ctladdr == NULL) 134703827b5fSeric ctladdr = &From; 1348f129ec7dSeric if (!bitset(S_ISGID, stb.st_mode) || setgid(stb.st_gid) < 0) 1349e36b99e2Seric { 1350e36b99e2Seric if (ctladdr->q_uid == 0) 1351e36b99e2Seric (void) setgid(DefGid); 1352e36b99e2Seric else 13536259796dSeric (void) setgid(ctladdr->q_gid); 1354e36b99e2Seric } 1355f129ec7dSeric if (!bitset(S_ISUID, stb.st_mode) || setuid(stb.st_uid) < 0) 1356e36b99e2Seric { 1357e36b99e2Seric if (ctladdr->q_uid == 0) 1358e36b99e2Seric (void) setuid(DefUid); 1359e36b99e2Seric else 13606259796dSeric (void) setuid(ctladdr->q_uid); 1361e36b99e2Seric } 136225a99e2eSeric f = fopen(filename, "a"); 136325a99e2eSeric if (f == NULL) 136432d19d43Seric exit(EX_CANTCREAT); 136525a99e2eSeric 1366c579ef51Seric putmessage(f, Mailer[1], FALSE); 136725a99e2eSeric fputs("\n", f); 1368db8841e9Seric (void) fclose(f); 136932d19d43Seric (void) fflush(stdout); 1370e36b99e2Seric 1371e36b99e2Seric /* reset ISUID & ISGID bits */ 1372c77d1c25Seric (void) chmod(filename, (int) stb.st_mode); 137332d19d43Seric exit(EX_OK); 137413bbc08cSeric /*NOTREACHED*/ 137532d19d43Seric } 137632d19d43Seric else 137732d19d43Seric { 137832d19d43Seric /* parent -- wait for exit status */ 137932d19d43Seric register int i; 138032d19d43Seric auto int stat; 138132d19d43Seric 138232d19d43Seric while ((i = wait(&stat)) != pid) 138332d19d43Seric { 138432d19d43Seric if (i < 0) 138532d19d43Seric { 138632d19d43Seric stat = EX_OSERR << 8; 138732d19d43Seric break; 138832d19d43Seric } 138932d19d43Seric } 13900984da9fSeric if ((stat & 0377) != 0) 13910984da9fSeric stat = EX_UNAVAILABLE << 8; 139232d19d43Seric return ((stat >> 8) & 0377); 139332d19d43Seric } 139425a99e2eSeric } 1395ea4dc939Seric /* 1396ea4dc939Seric ** SENDALL -- actually send all the messages. 1397ea4dc939Seric ** 1398ea4dc939Seric ** Parameters: 1399ea4dc939Seric ** verifyonly -- if set, only give verification messages. 1400ea4dc939Seric ** 1401ea4dc939Seric ** Returns: 1402ea4dc939Seric ** none. 1403ea4dc939Seric ** 1404ea4dc939Seric ** Side Effects: 1405ea4dc939Seric ** Scans the send lists and sends everything it finds. 1406ea4dc939Seric */ 1407ea4dc939Seric 1408ea4dc939Seric sendall(verifyonly) 1409ea4dc939Seric bool verifyonly; 1410ea4dc939Seric { 1411e77e673fSeric register ADDRESS *q; 1412ea4dc939Seric typedef int (*fnptr)(); 1413ea4dc939Seric 1414772e6e50Seric # ifdef DEBUG 1415772e6e50Seric if (Debug > 1) 1416772e6e50Seric { 1417772e6e50Seric printf("\nSendQueue:\n"); 1418772e6e50Seric printaddr(SendQueue, TRUE); 1419772e6e50Seric } 1420772e6e50Seric # endif DEBUG 1421ea4dc939Seric 1422e77e673fSeric for (q = SendQueue; q != NULL; q = q->q_next) 1423ea4dc939Seric { 1424ea4dc939Seric if (verifyonly) 1425ea4dc939Seric { 1426ea4dc939Seric To = q->q_paddr; 1427e77e673fSeric if (!bitset(QDONTSEND|QBADADDR, q->q_flags)) 1428ea4dc939Seric { 14297da1035fSeric if (bitset(M_LOCAL, q->q_mailer->m_flags)) 1430ea4dc939Seric message(Arpa_Info, "deliverable"); 1431ea4dc939Seric else 1432ea4dc939Seric message(Arpa_Info, "queueable"); 1433ea4dc939Seric } 1434ea4dc939Seric } 1435ea4dc939Seric else 1436ea4dc939Seric (void) deliver(q, (fnptr) NULL); 1437ea4dc939Seric } 1438ea4dc939Seric } 1439