125a99e2eSeric # include <stdio.h> 225a99e2eSeric # include <pwd.h> 325a99e2eSeric # include <signal.h> 46328bdf7Seric # include <ctype.h> 5b20b3270Seric # include "sendmail.h" 625a99e2eSeric # ifdef LOG 7e374fd72Seric # include <syslog.h> 825a99e2eSeric # endif LOG 925a99e2eSeric 10*145b49b1Seric static char SccsId[] = "@(#)deliver.c 3.15 08/08/81"; 11259cace7Seric 1225a99e2eSeric /* 1325a99e2eSeric ** DELIVER -- Deliver a message to a particular address. 1425a99e2eSeric ** 1525a99e2eSeric ** Parameters: 1625a99e2eSeric ** to -- the address to deliver the message to. 1725a99e2eSeric ** editfcn -- if non-NULL, we want to call this function 1825a99e2eSeric ** to output the letter (instead of just out- 1925a99e2eSeric ** putting it raw). 2025a99e2eSeric ** 2125a99e2eSeric ** Returns: 2225a99e2eSeric ** zero -- successfully delivered. 2325a99e2eSeric ** else -- some failure, see ExitStat for more info. 2425a99e2eSeric ** 2525a99e2eSeric ** Side Effects: 2625a99e2eSeric ** The standard input is passed off to someone. 2725a99e2eSeric */ 2825a99e2eSeric 2925a99e2eSeric deliver(to, editfcn) 302a6e0786Seric ADDRESS *to; 3125a99e2eSeric int (*editfcn)(); 3225a99e2eSeric { 3325a99e2eSeric char *host; 3425a99e2eSeric char *user; 3525a99e2eSeric extern struct passwd *getpwnam(); 3625a99e2eSeric char **pvp; 375dfc646bSeric register char **mvp; 3825a99e2eSeric register char *p; 395dfc646bSeric register struct mailer *m; 405dfc646bSeric register int i; 4125a99e2eSeric extern int errno; 426328bdf7Seric extern putmessage(); 43b07ac16bSeric extern char *index(); 442a6e0786Seric extern bool checkcompat(); 455dfc646bSeric char *pv[MAXPV+1]; 465dfc646bSeric extern char *newstr(); 475dfc646bSeric char tobuf[MAXLINE]; 485dfc646bSeric char buf[MAXNAME]; 495dfc646bSeric extern char *expand(); 505dfc646bSeric bool firstone; 5125a99e2eSeric 525dfc646bSeric if (bitset(QDONTSEND, to->q_flags)) 535dfc646bSeric return (0); 5425a99e2eSeric 5525a99e2eSeric # ifdef DEBUG 5625a99e2eSeric if (Debug) 575dfc646bSeric printf("\n--deliver, mailer=%d, host=`%s', first user=`%s'\n", 585dfc646bSeric to->q_mailer, to->q_host, to->q_user); 5925a99e2eSeric # endif DEBUG 6025a99e2eSeric 6125a99e2eSeric /* 625dfc646bSeric ** Do initial argv setup. 635dfc646bSeric ** Insert the mailer name. Notice that $x expansion is 645dfc646bSeric ** NOT done on the mailer name. Then, if the mailer has 655dfc646bSeric ** a picky -f flag, we insert it as appropriate. This 665dfc646bSeric ** code does not check for 'pv' overflow; this places a 675dfc646bSeric ** manifest lower limit of 4 for MAXPV. 685dfc646bSeric */ 695dfc646bSeric 705dfc646bSeric m = Mailer[to->q_mailer]; 715dfc646bSeric host = to->q_host; 725dfc646bSeric define('g', m->m_from); /* translated from address */ 735dfc646bSeric define('h', host); /* to host */ 745dfc646bSeric Errors = 0; 755dfc646bSeric errno = 0; 765dfc646bSeric pvp = pv; 775dfc646bSeric *pvp++ = m->m_argv[0]; 785dfc646bSeric 795dfc646bSeric /* insert -f or -r flag as appropriate */ 805dfc646bSeric if (bitset(M_FOPT|M_ROPT, m->m_flags) && FromFlag) 815dfc646bSeric { 825dfc646bSeric if (bitset(M_FOPT, m->m_flags)) 835dfc646bSeric *pvp++ = "-f"; 845dfc646bSeric else 855dfc646bSeric *pvp++ = "-r"; 865dfc646bSeric expand("$g", buf, &buf[sizeof buf - 1]); 875dfc646bSeric *pvp++ = newstr(buf); 885dfc646bSeric } 895dfc646bSeric 905dfc646bSeric /* 915dfc646bSeric ** Append the other fixed parts of the argv. These run 925dfc646bSeric ** up to the first entry containing "$u". There can only 935dfc646bSeric ** be one of these, and there are only a few more slots 945dfc646bSeric ** in the pv after it. 955dfc646bSeric */ 965dfc646bSeric 975dfc646bSeric for (mvp = m->m_argv; (p = *++mvp) != NULL; ) 985dfc646bSeric { 995dfc646bSeric while ((p = index(p, '$')) != NULL) 1005dfc646bSeric if (*++p == 'u') 1015dfc646bSeric break; 1025dfc646bSeric if (p != NULL) 1035dfc646bSeric break; 1045dfc646bSeric 1055dfc646bSeric /* this entry is safe -- go ahead and process it */ 1065dfc646bSeric expand(*mvp, buf, &buf[sizeof buf - 1]); 1075dfc646bSeric *pvp++ = newstr(buf); 1085dfc646bSeric if (pvp >= &pv[MAXPV - 3]) 1095dfc646bSeric { 1105dfc646bSeric syserr("Too many parameters to %s before $u", pv[0]); 1115dfc646bSeric return (-1); 1125dfc646bSeric } 1135dfc646bSeric } 1145dfc646bSeric if (*mvp == NULL) 1155dfc646bSeric syserr("No $u in mailer argv for %s", pv[0]); 1165dfc646bSeric 1175dfc646bSeric /* 1185dfc646bSeric ** At this point *mvp points to the argument with $u. We 1195dfc646bSeric ** run through our address list and append all the addresses 1205dfc646bSeric ** we can. If we run out of space, do not fret! We can 1215dfc646bSeric ** always send another copy later. 1225dfc646bSeric */ 1235dfc646bSeric 1245dfc646bSeric tobuf[0] = '\0'; 1255dfc646bSeric firstone = TRUE; 1265dfc646bSeric To = tobuf; 1275dfc646bSeric for (; to != NULL; to = to->q_next) 1285dfc646bSeric { 1295dfc646bSeric /* avoid sending multiple recipients to dumb mailers */ 1305dfc646bSeric if (!firstone && !bitset(M_MUSER, m->m_flags)) 1315dfc646bSeric break; 1325dfc646bSeric 1335dfc646bSeric /* if already sent or not for this host, don't send */ 1345dfc646bSeric if (bitset(QDONTSEND, to->q_flags) || strcmp(to->q_host, host) != 0) 1355dfc646bSeric continue; 1365dfc646bSeric user = to->q_user; 1375dfc646bSeric To = to->q_paddr; 1385dfc646bSeric to->q_flags |= QDONTSEND; 1395dfc646bSeric firstone = FALSE; 1405dfc646bSeric 1415dfc646bSeric # ifdef DEBUG 1425dfc646bSeric if (Debug) 1435dfc646bSeric printf(" send to `%s'\n", user); 1445dfc646bSeric # endif DEBUG 1455dfc646bSeric 1465dfc646bSeric /* 1475dfc646bSeric ** Check to see that these people are allowed to 1485dfc646bSeric ** talk to each other. 1492a6e0786Seric */ 1502a6e0786Seric 1512a6e0786Seric if (!checkcompat(to)) 1525dfc646bSeric { 1535dfc646bSeric giveresponse(EX_UNAVAILABLE, TRUE, m); 1545dfc646bSeric continue; 1555dfc646bSeric } 1562a6e0786Seric 1572a6e0786Seric /* 15825a99e2eSeric ** Remove quote bits from user/host. 15925a99e2eSeric */ 16025a99e2eSeric 16125a99e2eSeric for (p = user; (*p++ &= 0177) != '\0'; ) 16225a99e2eSeric continue; 16325a99e2eSeric if (host != NULL) 16425a99e2eSeric for (p = host; (*p++ &= 0177) != '\0'; ) 16525a99e2eSeric continue; 16625a99e2eSeric 16725a99e2eSeric /* 16825a99e2eSeric ** Strip quote bits from names if the mailer wants it. 16925a99e2eSeric */ 17025a99e2eSeric 1712a6e0786Seric if (bitset(M_STRIPQ, m->m_flags)) 17225a99e2eSeric { 17325a99e2eSeric stripquotes(user); 17425a99e2eSeric stripquotes(host); 17525a99e2eSeric } 17625a99e2eSeric 17725a99e2eSeric /* 17825a99e2eSeric ** See if this user name is "special". 17925a99e2eSeric ** If the user name has a slash in it, assume that this 18025a99e2eSeric ** is a file -- send it off without further ado. 18125a99e2eSeric ** Note that this means that editfcn's will not 1825dfc646bSeric ** be applied to the message. Also note that 1835dfc646bSeric ** this type of addresses is not processed along 1845dfc646bSeric ** with the others, so we fudge on the To person. 18525a99e2eSeric */ 18625a99e2eSeric 18786f2b423Seric if (m == Mailer[0]) 18825a99e2eSeric { 18925a99e2eSeric if (index(user, '/') != NULL) 19025a99e2eSeric { 19125a99e2eSeric i = mailfile(user); 19225a99e2eSeric giveresponse(i, TRUE, m); 1935dfc646bSeric continue; 19425a99e2eSeric } 19525a99e2eSeric } 19625a99e2eSeric 19725a99e2eSeric /* 198243921eeSeric ** See if the user exists. 199243921eeSeric ** Strictly, this is only needed to print a pretty 20025a99e2eSeric ** error message. 201243921eeSeric ** 202243921eeSeric ** >>>>>>>>>> This clause assumes that the local mailer 203243921eeSeric ** >> NOTE >> cannot do any further aliasing; that 204b20b3270Seric ** >>>>>>>>>> function is subsumed by sendmail. 20525a99e2eSeric */ 20625a99e2eSeric 207*145b49b1Seric if (m == Mailer[0] && !bitset(QGOODADDR, to->q_flags)) 20825a99e2eSeric { 209*145b49b1Seric if (bitset(QBADADDR, to->q_flags) || getpwnam(user) == NULL) 21025a99e2eSeric { 21125a99e2eSeric giveresponse(EX_NOUSER, TRUE, m); 2125dfc646bSeric continue; 21325a99e2eSeric } 21425a99e2eSeric } 21525a99e2eSeric 2165dfc646bSeric /* create list of users for error messages */ 2175dfc646bSeric if (tobuf[0] != '\0') 2185dfc646bSeric strcat(tobuf, ","); 2195dfc646bSeric strcat(tobuf, to->q_paddr); 2205dfc646bSeric define('u', user); /* to user */ 2215dfc646bSeric 2225dfc646bSeric /* expand out this user */ 2235dfc646bSeric expand(user, buf, &buf[sizeof buf - 1]); 2245dfc646bSeric *pvp++ = newstr(buf); 2255dfc646bSeric if (pvp >= &pv[MAXPV - 2]) 2265dfc646bSeric { 2275dfc646bSeric /* allow some space for trailing parms */ 2285dfc646bSeric break; 2295dfc646bSeric } 2305dfc646bSeric } 2315dfc646bSeric 232*145b49b1Seric /* see if any addresses still exist */ 233*145b49b1Seric if (tobuf[0] == '\0') 234*145b49b1Seric return (0); 235*145b49b1Seric 2365dfc646bSeric /* print out messages as full list */ 2375dfc646bSeric To = tobuf; 2385dfc646bSeric 2395dfc646bSeric /* 2405dfc646bSeric ** Fill out any parameters after the $u parameter. 2415dfc646bSeric */ 2425dfc646bSeric 2435dfc646bSeric while (*++mvp != NULL) 2445dfc646bSeric { 2455dfc646bSeric expand(*mvp, buf, &buf[sizeof buf - 1]); 2465dfc646bSeric *pvp++ = newstr(buf); 2475dfc646bSeric if (pvp >= &pv[MAXPV]) 2485dfc646bSeric syserr("deliver: pv overflow after $u for %s", pv[0]); 2495dfc646bSeric } 2505dfc646bSeric *pvp++ = NULL; 2515dfc646bSeric 25225a99e2eSeric /* 25325a99e2eSeric ** Call the mailer. 2546328bdf7Seric ** The argument vector gets built, pipes 25525a99e2eSeric ** are created as necessary, and we fork & exec as 2566328bdf7Seric ** appropriate. 25725a99e2eSeric */ 25825a99e2eSeric 2595dfc646bSeric if (editfcn == NULL) 2605dfc646bSeric editfcn = putmessage; 2615dfc646bSeric i = sendoff(m, pv, editfcn); 2625dfc646bSeric 2635dfc646bSeric return (i); 26425a99e2eSeric } 2655dfc646bSeric /* 2665dfc646bSeric ** SENDOFF -- send off call to mailer & collect response. 2675dfc646bSeric ** 2685dfc646bSeric ** Parameters: 2695dfc646bSeric ** m -- mailer descriptor. 2705dfc646bSeric ** pvp -- parameter vector to send to it. 2715dfc646bSeric ** editfcn -- function to pipe it through. 2725dfc646bSeric ** 2735dfc646bSeric ** Returns: 2745dfc646bSeric ** exit status of mailer. 2755dfc646bSeric ** 2765dfc646bSeric ** Side Effects: 2775dfc646bSeric ** none. 2785dfc646bSeric */ 2795dfc646bSeric 280750c6fe8Seric #define NFORKTRIES 5 281750c6fe8Seric 2825dfc646bSeric sendoff(m, pvp, editfcn) 2835dfc646bSeric struct mailer *m; 2845dfc646bSeric char **pvp; 2855dfc646bSeric int (*editfcn)(); 2865dfc646bSeric { 2875dfc646bSeric auto int st; 2885dfc646bSeric register int i; 2895dfc646bSeric int pid; 2905dfc646bSeric int pvect[2]; 2915dfc646bSeric FILE *mfile; 2925dfc646bSeric extern putmessage(); 2935dfc646bSeric extern pipesig(); 2945dfc646bSeric extern FILE *fdopen(); 2955dfc646bSeric 2965dfc646bSeric # ifdef DEBUG 2975dfc646bSeric if (Debug) 2985dfc646bSeric { 2995dfc646bSeric printf("Sendoff:\n"); 3005dfc646bSeric printav(pvp); 3015dfc646bSeric } 3025dfc646bSeric # endif DEBUG 3035dfc646bSeric 3046328bdf7Seric /* create a pipe to shove the mail through */ 3056328bdf7Seric if (pipe(pvect) < 0) 30625a99e2eSeric { 30725a99e2eSeric syserr("pipe"); 30825a99e2eSeric return (-1); 30925a99e2eSeric } 310750c6fe8Seric for (i = NFORKTRIES; i-- > 0; ) 311750c6fe8Seric { 312ea235328Smark # ifdef VFORK 313ea235328Smark pid = vfork(); 314ea235328Smark # else 31525a99e2eSeric pid = fork(); 316ea235328Smark # endif 317750c6fe8Seric if (pid >= 0) 318750c6fe8Seric break; 319750c6fe8Seric sleep(NFORKTRIES - i); 320750c6fe8Seric } 32125a99e2eSeric if (pid < 0) 32225a99e2eSeric { 32325a99e2eSeric syserr("Cannot fork"); 32425a99e2eSeric close(pvect[0]); 32525a99e2eSeric close(pvect[1]); 32625a99e2eSeric return (-1); 32725a99e2eSeric } 32825a99e2eSeric else if (pid == 0) 32925a99e2eSeric { 33025a99e2eSeric /* child -- set up input & exec mailer */ 33103ab8e55Seric /* make diagnostic output be standard output */ 33203ab8e55Seric close(2); 33303ab8e55Seric dup(1); 33425a99e2eSeric signal(SIGINT, SIG_IGN); 33525a99e2eSeric close(0); 33625a99e2eSeric if (dup(pvect[0]) < 0) 33725a99e2eSeric { 33825a99e2eSeric syserr("Cannot dup to zero!"); 339a590b978Seric _exit(EX_OSERR); 34025a99e2eSeric } 34125a99e2eSeric close(pvect[0]); 34225a99e2eSeric close(pvect[1]); 3432a6e0786Seric if (!bitset(M_RESTR, m->m_flags)) 34425a99e2eSeric setuid(getuid()); 345e374fd72Seric # ifndef VFORK 346e374fd72Seric /* 347e374fd72Seric ** We have to be careful with vfork - we can't mung up the 348e374fd72Seric ** memory but we don't want the mailer to inherit any extra 349e374fd72Seric ** open files. Chances are the mailer won't 350e374fd72Seric ** care about an extra file, but then again you never know. 351e374fd72Seric ** Actually, we would like to close(fileno(pwf)), but it's 352e374fd72Seric ** declared static so we can't. But if we fclose(pwf), which 353e374fd72Seric ** is what endpwent does, it closes it in the parent too and 354e374fd72Seric ** the next getpwnam will be slower. If you have a weird 355e374fd72Seric ** mailer that chokes on the extra file you should do the 356e374fd72Seric ** endpwent(). 357e374fd72Seric ** 358e374fd72Seric ** Similar comments apply to log. However, openlog is 359e374fd72Seric ** clever enough to set the FIOCLEX mode on the file, 360e374fd72Seric ** so it will be closed automatically on the exec. 361e374fd72Seric */ 362e374fd72Seric 363e374fd72Seric endpwent(); 36425a99e2eSeric # ifdef LOG 365f9fe028fSeric closelog(); 36625a99e2eSeric # endif LOG 367e374fd72Seric # endif VFORK 36825a99e2eSeric execv(m->m_mailer, pvp); 36925a99e2eSeric /* syserr fails because log is closed */ 37025a99e2eSeric /* syserr("Cannot exec %s", m->m_mailer); */ 3712ac087dbSeric printf("Cannot exec %s\n", m->m_mailer); 3722ac087dbSeric fflush(stdout); 373a590b978Seric _exit(EX_UNAVAILABLE); 37425a99e2eSeric } 37525a99e2eSeric 3766328bdf7Seric /* write out message to mailer */ 37725a99e2eSeric close(pvect[0]); 37825a99e2eSeric signal(SIGPIPE, pipesig); 37925a99e2eSeric mfile = fdopen(pvect[1], "w"); 3806328bdf7Seric if (editfcn == NULL) 3816328bdf7Seric editfcn = putmessage; 3826328bdf7Seric (*editfcn)(mfile, m); 38325a99e2eSeric fclose(mfile); 38425a99e2eSeric 38525a99e2eSeric /* 38625a99e2eSeric ** Wait for child to die and report status. 38725a99e2eSeric ** We should never get fatal errors (e.g., segmentation 38825a99e2eSeric ** violation), so we report those specially. For other 38925a99e2eSeric ** errors, we choose a status message (into statmsg), 39025a99e2eSeric ** and if it represents an error, we print it. 39125a99e2eSeric */ 39225a99e2eSeric 39325a99e2eSeric while ((i = wait(&st)) > 0 && i != pid) 39425a99e2eSeric continue; 39525a99e2eSeric if (i < 0) 39625a99e2eSeric { 39725a99e2eSeric syserr("wait"); 39825a99e2eSeric return (-1); 39925a99e2eSeric } 40025a99e2eSeric if ((st & 0377) != 0) 40125a99e2eSeric { 40225a99e2eSeric syserr("%s: stat %o", pvp[0], st); 403df2792f7Seric ExitStat = EX_UNAVAILABLE; 40425a99e2eSeric return (-1); 40525a99e2eSeric } 40625a99e2eSeric i = (st >> 8) & 0377; 4072ac087dbSeric giveresponse(i, TRUE, m); 40825a99e2eSeric return (i); 40925a99e2eSeric } 41025a99e2eSeric /* 41125a99e2eSeric ** GIVERESPONSE -- Interpret an error response from a mailer 41225a99e2eSeric ** 41325a99e2eSeric ** Parameters: 41425a99e2eSeric ** stat -- the status code from the mailer (high byte 41525a99e2eSeric ** only; core dumps must have been taken care of 41625a99e2eSeric ** already). 41725a99e2eSeric ** force -- if set, force an error message output, even 41825a99e2eSeric ** if the mailer seems to like to print its own 41925a99e2eSeric ** messages. 42025a99e2eSeric ** m -- the mailer descriptor for this mailer. 42125a99e2eSeric ** 42225a99e2eSeric ** Returns: 4232a6e0786Seric ** stat. 42425a99e2eSeric ** 42525a99e2eSeric ** Side Effects: 426c1f9df2cSeric ** Errors may be incremented. 42725a99e2eSeric ** ExitStat may be set. 42825a99e2eSeric ** 42925a99e2eSeric ** Called By: 43025a99e2eSeric ** deliver 43125a99e2eSeric */ 43225a99e2eSeric 43325a99e2eSeric giveresponse(stat, force, m) 43425a99e2eSeric int stat; 43525a99e2eSeric int force; 43625a99e2eSeric register struct mailer *m; 43725a99e2eSeric { 43825a99e2eSeric register char *statmsg; 43925a99e2eSeric extern char *SysExMsg[]; 44025a99e2eSeric register int i; 44125a99e2eSeric extern int N_SysEx; 44229dd97a3Seric extern long MsgSize; 44329dd97a3Seric char buf[30]; 444e9ff65b0Seric extern char *sprintf(); 44525a99e2eSeric 44625a99e2eSeric i = stat - EX__BASE; 44725a99e2eSeric if (i < 0 || i > N_SysEx) 44825a99e2eSeric statmsg = NULL; 44925a99e2eSeric else 45025a99e2eSeric statmsg = SysExMsg[i]; 45125a99e2eSeric if (stat == 0) 452c38ba59cSeric { 45325a99e2eSeric statmsg = "ok"; 454c38ba59cSeric if (Verbose) 455c38ba59cSeric message("050", "ok"); 456c38ba59cSeric } 45725a99e2eSeric else 45825a99e2eSeric { 459c1f9df2cSeric Errors++; 46025a99e2eSeric if (statmsg == NULL && m->m_badstat != 0) 46125a99e2eSeric { 46225a99e2eSeric stat = m->m_badstat; 46325a99e2eSeric i = stat - EX__BASE; 46425a99e2eSeric # ifdef DEBUG 46525a99e2eSeric if (i < 0 || i >= N_SysEx) 46625a99e2eSeric syserr("Bad m_badstat %d", stat); 46725a99e2eSeric else 46825a99e2eSeric # endif DEBUG 46925a99e2eSeric statmsg = SysExMsg[i]; 47025a99e2eSeric } 47125a99e2eSeric if (statmsg == NULL) 47225a99e2eSeric usrerr("unknown mailer response %d", stat); 473c38ba59cSeric else if (force || !bitset(M_QUIET, m->m_flags) || Verbose) 47425a99e2eSeric usrerr("%s", statmsg); 47525a99e2eSeric } 47625a99e2eSeric 47725a99e2eSeric /* 47825a99e2eSeric ** Final cleanup. 47925a99e2eSeric ** Log a record of the transaction. Compute the new 48025a99e2eSeric ** ExitStat -- if we already had an error, stick with 48125a99e2eSeric ** that. 48225a99e2eSeric */ 48325a99e2eSeric 48425a99e2eSeric if (statmsg == NULL) 48529dd97a3Seric { 48629dd97a3Seric sprintf(buf, "error %d", stat); 48729dd97a3Seric statmsg = buf; 48829dd97a3Seric } 48929dd97a3Seric 49029dd97a3Seric # ifdef LOG 491e374fd72Seric syslog(LOG_INFO, "%s->%s: %ld: %s", From.q_paddr, To, MsgSize, statmsg); 49225a99e2eSeric # endif LOG 493243921eeSeric setstat(stat); 49425a99e2eSeric return (stat); 49525a99e2eSeric } 49625a99e2eSeric /* 4976328bdf7Seric ** PUTMESSAGE -- output a message to the final mailer. 49825a99e2eSeric ** 4996328bdf7Seric ** This routine takes care of recreating the header from the 5006328bdf7Seric ** in-core copy, etc. 50125a99e2eSeric ** 50225a99e2eSeric ** Parameters: 5036328bdf7Seric ** fp -- file to output onto. 5046328bdf7Seric ** m -- a mailer descriptor. 50525a99e2eSeric ** 50625a99e2eSeric ** Returns: 5076328bdf7Seric ** none. 50825a99e2eSeric ** 50925a99e2eSeric ** Side Effects: 5106328bdf7Seric ** The message is written onto fp. 51125a99e2eSeric */ 51225a99e2eSeric 5136328bdf7Seric putmessage(fp, m) 5146328bdf7Seric FILE *fp; 5156328bdf7Seric struct mailer *m; 51625a99e2eSeric { 5176328bdf7Seric char buf[BUFSIZ]; 5186328bdf7Seric register int i; 5196328bdf7Seric HDR *h; 520b07ac16bSeric register char *p; 5216328bdf7Seric extern char *arpadate(); 5226328bdf7Seric bool anyheader = FALSE; 52340e4ab56Seric extern char *expand(); 524e9ff65b0Seric extern char *capitalize(); 52525a99e2eSeric 52640e4ab56Seric /* output "From" line unless supressed */ 52740e4ab56Seric if (!bitset(M_NHDR, m->m_flags)) 52840e4ab56Seric fprintf(fp, "%s\n", FromLine); 52940e4ab56Seric 5304ae18d0eSeric /* output all header lines */ 5316328bdf7Seric for (h = Header; h != NULL; h = h->h_link) 5326328bdf7Seric { 5339e9163a0Seric if (bitset(H_DELETE, h->h_flags)) 5349e9163a0Seric continue; 5359e9163a0Seric if (bitset(H_CHECK|H_ACHECK, h->h_flags) && !bitset(h->h_mflags, m->m_flags)) 5366328bdf7Seric continue; 5374ae18d0eSeric if (bitset(H_DEFAULT, h->h_flags)) 5384ae18d0eSeric { 5394ae18d0eSeric expand(h->h_value, buf, &buf[sizeof buf]); 5404ae18d0eSeric p = buf; 5414ae18d0eSeric } 5424ae18d0eSeric else 5434ae18d0eSeric p = h->h_value; 5449e9163a0Seric if (*p == '\0') 5459e9163a0Seric continue; 5464ae18d0eSeric fprintf(fp, "%s: %s\n", capitalize(h->h_field), p); 5476328bdf7Seric h->h_flags |= H_USED; 5486328bdf7Seric anyheader = TRUE; 5496328bdf7Seric } 5506328bdf7Seric 5516328bdf7Seric if (anyheader) 5526328bdf7Seric fprintf(fp, "\n"); 5536328bdf7Seric 5546328bdf7Seric /* output the body of the message */ 55585751117Seric rewind(stdin); 55685751117Seric while (!ferror(fp) && (i = fread(buf, 1, BUFSIZ, stdin)) > 0) 5576328bdf7Seric fwrite(buf, 1, i, fp); 5586328bdf7Seric 55925a99e2eSeric if (ferror(fp)) 56025a99e2eSeric { 5616328bdf7Seric syserr("putmessage: write error"); 56225a99e2eSeric setstat(EX_IOERR); 56325a99e2eSeric } 56425a99e2eSeric } 56525a99e2eSeric /* 56625a99e2eSeric ** PIPESIG -- Handle broken pipe signals 56725a99e2eSeric ** 56825a99e2eSeric ** This just logs an error. 56925a99e2eSeric ** 57025a99e2eSeric ** Parameters: 57125a99e2eSeric ** none 57225a99e2eSeric ** 57325a99e2eSeric ** Returns: 57425a99e2eSeric ** none 57525a99e2eSeric ** 57625a99e2eSeric ** Side Effects: 57725a99e2eSeric ** logs an error message. 57825a99e2eSeric */ 57925a99e2eSeric 58025a99e2eSeric pipesig() 58125a99e2eSeric { 58225a99e2eSeric syserr("Broken pipe"); 58303ab8e55Seric signal(SIGPIPE, SIG_IGN); 58425a99e2eSeric } 58525a99e2eSeric /* 58625a99e2eSeric ** SENDTO -- Designate a send list. 58725a99e2eSeric ** 58825a99e2eSeric ** The parameter is a comma-separated list of people to send to. 58925a99e2eSeric ** This routine arranges to send to all of them. 59025a99e2eSeric ** 59125a99e2eSeric ** Parameters: 59225a99e2eSeric ** list -- the send list. 59325a99e2eSeric ** copyf -- the copy flag; passed to parse. 59425a99e2eSeric ** 59525a99e2eSeric ** Returns: 59625a99e2eSeric ** none 59725a99e2eSeric ** 59825a99e2eSeric ** Side Effects: 59925a99e2eSeric ** none. 60025a99e2eSeric */ 60125a99e2eSeric 60225a99e2eSeric sendto(list, copyf) 60325a99e2eSeric char *list; 60425a99e2eSeric int copyf; 60525a99e2eSeric { 60625a99e2eSeric register char *p; 60725a99e2eSeric register char *q; 60825a99e2eSeric register char c; 6092a6e0786Seric ADDRESS *a; 6102a6e0786Seric extern ADDRESS *parse(); 61125a99e2eSeric bool more; 61225a99e2eSeric 61325a99e2eSeric /* more keeps track of what the previous delimiter was */ 61425a99e2eSeric more = TRUE; 61525a99e2eSeric for (p = list; more; ) 61625a99e2eSeric { 61725a99e2eSeric /* find the end of this address */ 61825a99e2eSeric q = p; 61925a99e2eSeric while ((c = *p++) != '\0' && c != ',' && c != '\n') 62025a99e2eSeric continue; 62125a99e2eSeric more = c != '\0'; 62225a99e2eSeric *--p = '\0'; 62325a99e2eSeric if (more) 62425a99e2eSeric p++; 62525a99e2eSeric 62625a99e2eSeric /* parse the address */ 6272a6e0786Seric if ((a = parse(q, (ADDRESS *) NULL, copyf)) == NULL) 62825a99e2eSeric continue; 62925a99e2eSeric 63025a99e2eSeric /* arrange to send to this person */ 63140e4ab56Seric recipient(a); 63225a99e2eSeric } 63325a99e2eSeric To = NULL; 63425a99e2eSeric } 63525a99e2eSeric /* 63625a99e2eSeric ** RECIPIENT -- Designate a message recipient 63725a99e2eSeric ** 63825a99e2eSeric ** Saves the named person for future mailing. 63925a99e2eSeric ** 64025a99e2eSeric ** Parameters: 64125a99e2eSeric ** a -- the (preparsed) address header for the recipient. 64225a99e2eSeric ** 64325a99e2eSeric ** Returns: 64425a99e2eSeric ** none. 64525a99e2eSeric ** 64625a99e2eSeric ** Side Effects: 64725a99e2eSeric ** none. 64825a99e2eSeric */ 64925a99e2eSeric 65040e4ab56Seric recipient(a) 6512a6e0786Seric register ADDRESS *a; 65225a99e2eSeric { 6532a6e0786Seric register ADDRESS *q; 65425a99e2eSeric register struct mailer *m; 65525a99e2eSeric extern bool forward(); 65625a99e2eSeric extern int errno; 65725a99e2eSeric extern bool sameaddr(); 65825a99e2eSeric 65925a99e2eSeric To = a->q_paddr; 66086f2b423Seric m = Mailer[a->q_mailer]; 66125a99e2eSeric errno = 0; 66225a99e2eSeric # ifdef DEBUG 66325a99e2eSeric if (Debug) 66425a99e2eSeric printf("recipient(%s)\n", To); 66525a99e2eSeric # endif DEBUG 66625a99e2eSeric 66725a99e2eSeric /* 66840e4ab56Seric ** Do sickly crude mapping for program mailing, etc. 66925a99e2eSeric */ 67025a99e2eSeric 67140e4ab56Seric if (a->q_mailer == 0 && a->q_user[0] == '|') 67225a99e2eSeric { 67340e4ab56Seric a->q_mailer = 1; 674fc194317Seric m = Mailer[1]; 67540e4ab56Seric a->q_user++; 67625a99e2eSeric } 67740e4ab56Seric 67840e4ab56Seric /* 67940e4ab56Seric ** Look up this person in the recipient list. If they 68040e4ab56Seric ** are there already, return, otherwise continue. 68140e4ab56Seric ** If the list is empty, just add it. 68240e4ab56Seric */ 68340e4ab56Seric 68440e4ab56Seric if (m->m_sendq == NULL) 68540e4ab56Seric { 68640e4ab56Seric m->m_sendq = a; 68740e4ab56Seric } 68840e4ab56Seric else 68940e4ab56Seric { 69040e4ab56Seric ADDRESS *pq; 69140e4ab56Seric 69240e4ab56Seric for (q = m->m_sendq; q != NULL; pq = q, q = q->q_next) 69340e4ab56Seric { 69440e4ab56Seric if (!ForceMail && sameaddr(q, a, FALSE)) 69525a99e2eSeric { 69625a99e2eSeric # ifdef DEBUG 69725a99e2eSeric if (Debug) 69840e4ab56Seric printf("(%s in sendq)\n", a->q_paddr); 69925a99e2eSeric # endif DEBUG 700*145b49b1Seric if (Verbose && !bitset(QDONTSEND, a->q_flags)) 701c38ba59cSeric message("050", "duplicate supressed"); 70225a99e2eSeric return; 70325a99e2eSeric } 70425a99e2eSeric } 70525a99e2eSeric 70640e4ab56Seric /* add address on list */ 70740e4ab56Seric q = pq; 7085dfc646bSeric q->q_next = a; 70940e4ab56Seric } 71040e4ab56Seric a->q_next = NULL; 71140e4ab56Seric 71225a99e2eSeric /* 71325a99e2eSeric ** See if the user wants hir mail forwarded. 71425a99e2eSeric ** `Forward' must do the forwarding recursively. 71525a99e2eSeric */ 71625a99e2eSeric 71740e4ab56Seric if (m == Mailer[0] && !NoAlias && forward(a)) 718*145b49b1Seric a->q_flags |= QDONTSEND; 71925a99e2eSeric 72025a99e2eSeric return; 72125a99e2eSeric } 72225a99e2eSeric /* 72325a99e2eSeric ** MAILFILE -- Send a message to a file. 72425a99e2eSeric ** 72525a99e2eSeric ** Parameters: 72625a99e2eSeric ** filename -- the name of the file to send to. 72725a99e2eSeric ** 72825a99e2eSeric ** Returns: 72925a99e2eSeric ** The exit code associated with the operation. 73025a99e2eSeric ** 73125a99e2eSeric ** Side Effects: 73225a99e2eSeric ** none. 73325a99e2eSeric ** 73425a99e2eSeric ** Called By: 73525a99e2eSeric ** deliver 73625a99e2eSeric */ 73725a99e2eSeric 73825a99e2eSeric mailfile(filename) 73925a99e2eSeric char *filename; 74025a99e2eSeric { 74125a99e2eSeric register FILE *f; 74225a99e2eSeric 74325a99e2eSeric f = fopen(filename, "a"); 74425a99e2eSeric if (f == NULL) 74525a99e2eSeric return (EX_CANTCREAT); 74625a99e2eSeric 74740e4ab56Seric putmessage(f, Mailer[1]); 74825a99e2eSeric fputs("\n", f); 74925a99e2eSeric fclose(f); 75025a99e2eSeric return (EX_OK); 75125a99e2eSeric } 752