diff options
Diffstat (limited to 'usr.sbin/sendmail/src/usersmtp.c')
| -rw-r--r-- | usr.sbin/sendmail/src/usersmtp.c | 905 |
1 files changed, 905 insertions, 0 deletions
diff --git a/usr.sbin/sendmail/src/usersmtp.c b/usr.sbin/sendmail/src/usersmtp.c new file mode 100644 index 0000000..06acd3f --- /dev/null +++ b/usr.sbin/sendmail/src/usersmtp.c @@ -0,0 +1,905 @@ +/* + * Copyright (c) 1983 Eric P. Allman + * Copyright (c) 1988, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +# include "sendmail.h" + +#ifndef lint +#ifdef SMTP +static char sccsid[] = "@(#)usersmtp.c 8.18 (Berkeley) 1/24/94 (with SMTP)"; +#else +static char sccsid[] = "@(#)usersmtp.c 8.18 (Berkeley) 1/24/94 (without SMTP)"; +#endif +#endif /* not lint */ + +# include <sysexits.h> +# include <errno.h> + +# ifdef SMTP + +/* +** USERSMTP -- run SMTP protocol from the user end. +** +** This protocol is described in RFC821. +*/ + +#define REPLYTYPE(r) ((r) / 100) /* first digit of reply code */ +#define REPLYCLASS(r) (((r) / 10) % 10) /* second digit of reply code */ +#define SMTPCLOSING 421 /* "Service Shutting Down" */ + +char SmtpMsgBuffer[MAXLINE]; /* buffer for commands */ +char SmtpReplyBuffer[MAXLINE]; /* buffer for replies */ +char SmtpError[MAXLINE] = ""; /* save failure error messages */ +int SmtpPid; /* pid of mailer */ +bool SmtpNeedIntro; /* need "while talking" in transcript */ + +#ifdef __STDC__ +extern smtpmessage(char *f, MAILER *m, MCI *mci, ...); +#endif + /* +** SMTPINIT -- initialize SMTP. +** +** Opens the connection and sends the initial protocol. +** +** Parameters: +** m -- mailer to create connection to. +** pvp -- pointer to parameter vector to pass to +** the mailer. +** +** Returns: +** none. +** +** Side Effects: +** creates connection and sends initial protocol. +*/ + +smtpinit(m, mci, e) + struct mailer *m; + register MCI *mci; + ENVELOPE *e; +{ + register int r; + register char *p; + extern void esmtp_check(); + extern void helo_options(); + + if (tTd(18, 1)) + { + printf("smtpinit "); + mci_dump(mci, FALSE); + } + + /* + ** Open the connection to the mailer. + */ + + SmtpError[0] = '\0'; + CurHostName = mci->mci_host; /* XXX UGLY XXX */ + SmtpNeedIntro = TRUE; + switch (mci->mci_state) + { + case MCIS_ACTIVE: + /* need to clear old information */ + smtprset(m, mci, e); + /* fall through */ + + case MCIS_OPEN: + return; + + case MCIS_ERROR: + case MCIS_SSD: + /* shouldn't happen */ + smtpquit(m, mci, e); + /* fall through */ + + case MCIS_CLOSED: + syserr("451 smtpinit: state CLOSED"); + return; + + case MCIS_OPENING: + break; + } + + mci->mci_state = MCIS_OPENING; + + /* + ** Get the greeting message. + ** This should appear spontaneously. Give it five minutes to + ** happen. + */ + + SmtpPhase = mci->mci_phase = "client greeting"; + setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase); + r = reply(m, mci, e, TimeOuts.to_initial, esmtp_check); + if (r < 0 || REPLYTYPE(r) == 4) + goto tempfail1; + if (REPLYTYPE(r) != 2) + goto unavailable; + + /* + ** Send the HELO command. + ** My mother taught me to always introduce myself. + */ + + if (bitnset(M_ESMTP, m->m_flags)) + mci->mci_flags |= MCIF_ESMTP; + +tryhelo: + if (bitset(MCIF_ESMTP, mci->mci_flags)) + { + smtpmessage("EHLO %s", m, mci, MyHostName); + SmtpPhase = mci->mci_phase = "client EHLO"; + } + else + { + smtpmessage("HELO %s", m, mci, MyHostName); + SmtpPhase = mci->mci_phase = "client HELO"; + } + setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase); + r = reply(m, mci, e, TimeOuts.to_helo, helo_options); + if (r < 0) + goto tempfail1; + else if (REPLYTYPE(r) == 5) + { + if (bitset(MCIF_ESMTP, mci->mci_flags)) + { + /* try old SMTP instead */ + mci->mci_flags &= ~MCIF_ESMTP; + goto tryhelo; + } + goto unavailable; + } + else if (REPLYTYPE(r) != 2) + goto tempfail1; + + /* + ** Check to see if we actually ended up talking to ourself. + ** This means we didn't know about an alias or MX, or we managed + ** to connect to an echo server. + ** + ** If this code remains at all, "CheckLoopBack" should be + ** a mailer flag. This is a MAYBENEXTRELEASE feature. + */ + + p = strchr(&SmtpReplyBuffer[4], ' '); + if (p != NULL) + *p = '\0'; + if (CheckLoopBack && strcasecmp(&SmtpReplyBuffer[4], MyHostName) == 0) + { + syserr("553 %s config error: mail loops back to myself", + MyHostName); + mci->mci_exitstat = EX_CONFIG; + mci->mci_errno = 0; + smtpquit(m, mci, e); + return; + } + + /* + ** If this is expected to be another sendmail, send some internal + ** commands. + */ + + if (bitnset(M_INTERNAL, m->m_flags)) + { + /* tell it to be verbose */ + smtpmessage("VERB", m, mci); + r = reply(m, mci, e, TimeOuts.to_miscshort, NULL); + if (r < 0) + goto tempfail2; + } + + if (mci->mci_state != MCIS_CLOSED) + { + mci->mci_state = MCIS_OPEN; + return; + } + + /* got a 421 error code during startup */ + + tempfail1: + tempfail2: + mci->mci_exitstat = EX_TEMPFAIL; + if (mci->mci_errno == 0) + mci->mci_errno = errno; + if (mci->mci_state != MCIS_CLOSED) + smtpquit(m, mci, e); + return; + + unavailable: + mci->mci_exitstat = EX_UNAVAILABLE; + mci->mci_errno = errno; + smtpquit(m, mci, e); + return; +} + /* +** ESMTP_CHECK -- check to see if this implementation likes ESMTP protocol +** +** +** Parameters: +** line -- the response line. +** m -- the mailer. +** mci -- the mailer connection info. +** e -- the envelope. +** +** Returns: +** none. +*/ + +void +esmtp_check(line, m, mci, e) + char *line; + MAILER *m; + register MCI *mci; + ENVELOPE *e; +{ + if (strlen(line) < 5) + return; + line += 4; + if (strncmp(line, "ESMTP ", 6) == 0) + mci->mci_flags |= MCIF_ESMTP; +} + /* +** HELO_OPTIONS -- process the options on a HELO line. +** +** Parameters: +** line -- the response line. +** m -- the mailer. +** mci -- the mailer connection info. +** e -- the envelope. +** +** Returns: +** none. +*/ + +void +helo_options(line, m, mci, e) + char *line; + MAILER *m; + register MCI *mci; + ENVELOPE *e; +{ + register char *p; + + if (strlen(line) < 5) + return; + line += 4; + p = strchr(line, ' '); + if (p != NULL) + *p++ = '\0'; + if (strcasecmp(line, "size") == 0) + { + mci->mci_flags |= MCIF_SIZE; + if (p != NULL) + mci->mci_maxsize = atol(p); + } + else if (strcasecmp(line, "8bitmime") == 0) + { + mci->mci_flags |= MCIF_8BITMIME; + mci->mci_flags &= ~MCIF_7BIT; + } + else if (strcasecmp(line, "expn") == 0) + mci->mci_flags |= MCIF_EXPN; +} + /* +** SMTPMAILFROM -- send MAIL command +** +** Parameters: +** m -- the mailer. +** mci -- the mailer connection structure. +** e -- the envelope (including the sender to specify). +*/ + +smtpmailfrom(m, mci, e) + struct mailer *m; + MCI *mci; + ENVELOPE *e; +{ + int r; + char *bufp; + char buf[MAXNAME]; + char optbuf[MAXLINE]; + + if (tTd(18, 2)) + printf("smtpmailfrom: CurHost=%s\n", CurHostName); + + /* set up appropriate options to include */ + if (bitset(MCIF_SIZE, mci->mci_flags) && e->e_msgsize > 0) + sprintf(optbuf, " SIZE=%ld", e->e_msgsize); + else + strcpy(optbuf, ""); + + /* + ** Send the MAIL command. + ** Designates the sender. + */ + + mci->mci_state = MCIS_ACTIVE; + + if (bitset(EF_RESPONSE, e->e_flags) && + !bitnset(M_NO_NULL_FROM, m->m_flags)) + (void) strcpy(buf, ""); + else + expand("\201g", buf, &buf[sizeof buf - 1], e); + if (buf[0] == '<') + { + /* strip off <angle brackets> (put back on below) */ + bufp = &buf[strlen(buf) - 1]; + if (*bufp == '>') + *bufp = '\0'; + bufp = &buf[1]; + } + else + bufp = buf; + if (e->e_from.q_mailer == LocalMailer || + !bitnset(M_FROMPATH, m->m_flags)) + { + smtpmessage("MAIL From:<%s>%s", m, mci, bufp, optbuf); + } + else + { + smtpmessage("MAIL From:<@%s%c%s>%s", m, mci, MyHostName, + *bufp == '@' ? ',' : ':', bufp, optbuf); + } + SmtpPhase = mci->mci_phase = "client MAIL"; + setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase); + r = reply(m, mci, e, TimeOuts.to_mail, NULL); + if (r < 0 || REPLYTYPE(r) == 4) + { + mci->mci_exitstat = EX_TEMPFAIL; + mci->mci_errno = errno; + smtpquit(m, mci, e); + return EX_TEMPFAIL; + } + else if (r == 250) + { + mci->mci_exitstat = EX_OK; + return EX_OK; + } + else if (r == 552) + { + /* signal service unavailable */ + mci->mci_exitstat = EX_UNAVAILABLE; + smtpquit(m, mci, e); + return EX_UNAVAILABLE; + } + +#ifdef LOG + if (LogLevel > 1) + { + syslog(LOG_CRIT, "%s: SMTP MAIL protocol error: %s", + e->e_id, SmtpReplyBuffer); + } +#endif + + /* protocol error -- close up */ + smtpquit(m, mci, e); + mci->mci_exitstat = EX_PROTOCOL; + return EX_PROTOCOL; +} + /* +** SMTPRCPT -- designate recipient. +** +** Parameters: +** to -- address of recipient. +** m -- the mailer we are sending to. +** mci -- the connection info for this transaction. +** e -- the envelope for this transaction. +** +** Returns: +** exit status corresponding to recipient status. +** +** Side Effects: +** Sends the mail via SMTP. +*/ + +smtprcpt(to, m, mci, e) + ADDRESS *to; + register MAILER *m; + MCI *mci; + ENVELOPE *e; +{ + register int r; + + smtpmessage("RCPT To:<%s>", m, mci, to->q_user); + + SmtpPhase = mci->mci_phase = "client RCPT"; + setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase); + r = reply(m, mci, e, TimeOuts.to_rcpt, NULL); + if (r < 0 || REPLYTYPE(r) == 4) + return (EX_TEMPFAIL); + else if (REPLYTYPE(r) == 2) + return (EX_OK); + else if (r == 550 || r == 551 || r == 553) + return (EX_NOUSER); + else if (r == 552 || r == 554) + return (EX_UNAVAILABLE); + +#ifdef LOG + if (LogLevel > 1) + { + syslog(LOG_CRIT, "%s: SMTP RCPT protocol error: %s", + e->e_id, SmtpReplyBuffer); + } +#endif + + return (EX_PROTOCOL); +} + /* +** SMTPDATA -- send the data and clean up the transaction. +** +** Parameters: +** m -- mailer being sent to. +** e -- the envelope for this message. +** +** Returns: +** exit status corresponding to DATA command. +** +** Side Effects: +** none. +*/ + +static jmp_buf CtxDataTimeout; +static int datatimeout(); + +smtpdata(m, mci, e) + struct mailer *m; + register MCI *mci; + register ENVELOPE *e; +{ + register int r; + register EVENT *ev; + time_t timeout; + + /* + ** Send the data. + ** First send the command and check that it is ok. + ** Then send the data. + ** Follow it up with a dot to terminate. + ** Finally get the results of the transaction. + */ + + /* send the command and check ok to proceed */ + smtpmessage("DATA", m, mci); + SmtpPhase = mci->mci_phase = "client DATA 354"; + setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase); + r = reply(m, mci, e, TimeOuts.to_datainit, NULL); + if (r < 0 || REPLYTYPE(r) == 4) + { + smtpquit(m, mci, e); + return (EX_TEMPFAIL); + } + else if (r == 554) + { + smtprset(m, mci, e); + return (EX_UNAVAILABLE); + } + else if (r != 354) + { +#ifdef LOG + if (LogLevel > 1) + { + syslog(LOG_CRIT, "%s: SMTP DATA-1 protocol error: %s", + e->e_id, SmtpReplyBuffer); + } +#endif + smtprset(m, mci, e); + return (EX_PROTOCOL); + } + + /* + ** Set timeout around data writes. Make it at least large + ** enough for DNS timeouts on all recipients plus some fudge + ** factor. The main thing is that it should not be infinite. + */ + + if (setjmp(CtxDataTimeout) != 0) + { + mci->mci_errno = errno; + mci->mci_exitstat = EX_TEMPFAIL; + mci->mci_state = MCIS_ERROR; + syserr("451 timeout writing message to %s", mci->mci_host); + smtpquit(m, mci, e); + return EX_TEMPFAIL; + } + + timeout = e->e_msgsize / 16; + if (timeout < (time_t) 60) + timeout = (time_t) 60; + timeout += e->e_nrcpts * 90; + ev = setevent(timeout, datatimeout, 0); + + /* now output the actual message */ + (*e->e_puthdr)(mci, e); + putline("\n", mci); + (*e->e_putbody)(mci, e, NULL); + + clrevent(ev); + + if (ferror(mci->mci_out)) + { + /* error during processing -- don't send the dot */ + mci->mci_errno = EIO; + mci->mci_exitstat = EX_IOERR; + mci->mci_state = MCIS_ERROR; + smtpquit(m, mci, e); + return EX_IOERR; + } + + /* terminate the message */ + fprintf(mci->mci_out, ".%s", m->m_eol); + if (TrafficLogFile != NULL) + fprintf(TrafficLogFile, "%05d >>> .\n", getpid()); + if (Verbose) + nmessage(">>> ."); + + /* check for the results of the transaction */ + SmtpPhase = mci->mci_phase = "client DATA 250"; + setproctitle("%s %s: %s", e->e_id, CurHostName, mci->mci_phase); + r = reply(m, mci, e, TimeOuts.to_datafinal, NULL); + if (r < 0) + { + smtpquit(m, mci, e); + return (EX_TEMPFAIL); + } + mci->mci_state = MCIS_OPEN; + e->e_statmsg = newstr(&SmtpReplyBuffer[4]); + if (REPLYTYPE(r) == 4) + return (EX_TEMPFAIL); + else if (r == 250) + return (EX_OK); + else if (r == 552 || r == 554) + return (EX_UNAVAILABLE); +#ifdef LOG + if (LogLevel > 1) + { + syslog(LOG_CRIT, "%s: SMTP DATA-2 protocol error: %s", + e->e_id, SmtpReplyBuffer); + } +#endif + return (EX_PROTOCOL); +} + + +static int +datatimeout() +{ + longjmp(CtxDataTimeout, 1); +} + /* +** SMTPQUIT -- close the SMTP connection. +** +** Parameters: +** m -- a pointer to the mailer. +** +** Returns: +** none. +** +** Side Effects: +** sends the final protocol and closes the connection. +*/ + +smtpquit(m, mci, e) + register MAILER *m; + register MCI *mci; + ENVELOPE *e; +{ + bool oldSuprErrs = SuprErrs; + + /* + ** Suppress errors here -- we may be processing a different + ** job when we do the quit connection, and we don't want the + ** new job to be penalized for something that isn't it's + ** problem. + */ + + SuprErrs = TRUE; + + /* send the quit message if we haven't gotten I/O error */ + if (mci->mci_state != MCIS_ERROR) + { + SmtpPhase = "client QUIT"; + smtpmessage("QUIT", m, mci); + (void) reply(m, mci, e, TimeOuts.to_quit, NULL); + SuprErrs = oldSuprErrs; + if (mci->mci_state == MCIS_CLOSED) + { + SuprErrs = oldSuprErrs; + return; + } + } + + /* now actually close the connection and pick up the zombie */ + (void) endmailer(mci, e, NULL); + + SuprErrs = oldSuprErrs; +} + /* +** SMTPRSET -- send a RSET (reset) command +*/ + +smtprset(m, mci, e) + register MAILER *m; + register MCI *mci; + ENVELOPE *e; +{ + int r; + + SmtpPhase = "client RSET"; + smtpmessage("RSET", m, mci); + r = reply(m, mci, e, TimeOuts.to_rset, NULL); + if (r < 0) + mci->mci_state = MCIS_ERROR; + else if (REPLYTYPE(r) == 2) + { + mci->mci_state = MCIS_OPEN; + return; + } + smtpquit(m, mci, e); +} + /* +** SMTPPROBE -- check the connection state +*/ + +smtpprobe(mci) + register MCI *mci; +{ + int r; + MAILER *m = mci->mci_mailer; + extern ENVELOPE BlankEnvelope; + ENVELOPE *e = &BlankEnvelope; + + SmtpPhase = "client probe"; + smtpmessage("RSET", m, mci); + r = reply(m, mci, e, TimeOuts.to_miscshort, NULL); + if (r < 0 || REPLYTYPE(r) != 2) + smtpquit(m, mci, e); + return r; +} + /* +** REPLY -- read arpanet reply +** +** Parameters: +** m -- the mailer we are reading the reply from. +** mci -- the mailer connection info structure. +** e -- the current envelope. +** timeout -- the timeout for reads. +** pfunc -- processing function for second and subsequent +** lines of response -- if null, no special +** processing is done. +** +** Returns: +** reply code it reads. +** +** Side Effects: +** flushes the mail file. +*/ + +reply(m, mci, e, timeout, pfunc) + MAILER *m; + MCI *mci; + ENVELOPE *e; + time_t timeout; + void (*pfunc)(); +{ + register char *bufp; + register int r; + bool firstline = TRUE; + char junkbuf[MAXLINE]; + + if (mci->mci_out != NULL) + (void) fflush(mci->mci_out); + + if (tTd(18, 1)) + printf("reply\n"); + + /* + ** Read the input line, being careful not to hang. + */ + + for (bufp = SmtpReplyBuffer;; bufp = junkbuf) + { + register char *p; + extern time_t curtime(); + + /* actually do the read */ + if (e->e_xfp != NULL) + (void) fflush(e->e_xfp); /* for debugging */ + + /* if we are in the process of closing just give the code */ + if (mci->mci_state == MCIS_CLOSED) + return (SMTPCLOSING); + + if (mci->mci_out != NULL) + fflush(mci->mci_out); + + /* get the line from the other side */ + p = sfgets(bufp, MAXLINE, mci->mci_in, timeout, SmtpPhase); + mci->mci_lastuse = curtime(); + + if (p == NULL) + { + bool oldholderrs; + extern char MsgBuf[]; /* err.c */ + + /* if the remote end closed early, fake an error */ + if (errno == 0) +# ifdef ECONNRESET + errno = ECONNRESET; +# else /* ECONNRESET */ + errno = EPIPE; +# endif /* ECONNRESET */ + + mci->mci_errno = errno; + mci->mci_exitstat = EX_TEMPFAIL; + oldholderrs = HoldErrs; + HoldErrs = TRUE; + usrerr("451 reply: read error from %s", mci->mci_host); + + /* if debugging, pause so we can see state */ + if (tTd(18, 100)) + pause(); + mci->mci_state = MCIS_ERROR; + smtpquit(m, mci, e); +#ifdef XDEBUG + { + char wbuf[MAXLINE]; + char *p = wbuf; + if (e->e_to != NULL) + { + sprintf(p, "%s... ", e->e_to); + p += strlen(p); + } + sprintf(p, "reply(%s) during %s", + mci->mci_host, SmtpPhase); + checkfd012(wbuf); + } +#endif + HoldErrs = oldholderrs; + return (-1); + } + fixcrlf(bufp, TRUE); + + /* EHLO failure is not a real error */ + if (e->e_xfp != NULL && (bufp[0] == '4' || + (bufp[0] == '5' && strncmp(SmtpMsgBuffer, "EHLO", 4) != 0))) + { + /* serious error -- log the previous command */ + if (SmtpNeedIntro) + { + /* inform user who we are chatting with */ + fprintf(CurEnv->e_xfp, + "... while talking to %s:\n", + CurHostName); + SmtpNeedIntro = FALSE; + } + if (SmtpMsgBuffer[0] != '\0') + fprintf(e->e_xfp, ">>> %s\n", SmtpMsgBuffer); + SmtpMsgBuffer[0] = '\0'; + + /* now log the message as from the other side */ + fprintf(e->e_xfp, "<<< %s\n", bufp); + } + + /* display the input for verbose mode */ + if (Verbose) + nmessage("050 %s", bufp); + + /* process the line */ + if (pfunc != NULL && !firstline) + (*pfunc)(bufp, m, mci, e); + + firstline = FALSE; + + /* if continuation is required, we can go on */ + if (bufp[3] == '-') + continue; + + /* ignore improperly formated input */ + if (!(isascii(bufp[0]) && isdigit(bufp[0]))) + continue; + + /* decode the reply code */ + r = atoi(bufp); + + /* extra semantics: 0xx codes are "informational" */ + if (r >= 100) + break; + } + + /* + ** Now look at SmtpReplyBuffer -- only care about the first + ** line of the response from here on out. + */ + + /* save temporary failure messages for posterity */ + if (SmtpReplyBuffer[0] == '4' && SmtpError[0] == '\0') + (void) strcpy(SmtpError, SmtpReplyBuffer); + + /* reply code 421 is "Service Shutting Down" */ + if (r == SMTPCLOSING && mci->mci_state != MCIS_SSD) + { + /* send the quit protocol */ + mci->mci_state = MCIS_SSD; + smtpquit(m, mci, e); + } + + return (r); +} + /* +** SMTPMESSAGE -- send message to server +** +** Parameters: +** f -- format +** m -- the mailer to control formatting. +** a, b, c -- parameters +** +** Returns: +** none. +** +** Side Effects: +** writes message to mci->mci_out. +*/ + +/*VARARGS1*/ +#ifdef __STDC__ +smtpmessage(char *f, MAILER *m, MCI *mci, ...) +#else +smtpmessage(f, m, mci, va_alist) + char *f; + MAILER *m; + MCI *mci; + va_dcl +#endif +{ + VA_LOCAL_DECL + + VA_START(mci); + (void) vsprintf(SmtpMsgBuffer, f, ap); + VA_END; + + if (tTd(18, 1) || Verbose) + nmessage(">>> %s", SmtpMsgBuffer); + if (TrafficLogFile != NULL) + fprintf(TrafficLogFile, "%05d >>> %s\n", getpid(), SmtpMsgBuffer); + if (mci->mci_out != NULL) + { + fprintf(mci->mci_out, "%s%s", SmtpMsgBuffer, + m == NULL ? "\r\n" : m->m_eol); + } + else if (tTd(18, 1)) + { + printf("smtpmessage: NULL mci_out\n"); + } +} + +# endif /* SMTP */ |
