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diff --git a/usr.sbin/sendmail/src/collect.c b/usr.sbin/sendmail/src/collect.c
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+/*
+ * 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)collect.c 8.14 (Berkeley) 4/18/94";
+#endif /* not lint */
+
+# include <errno.h>
+# include "sendmail.h"
+
+/*
+** COLLECT -- read & parse message header & make temp file.
+**
+** Creates a temporary file name and copies the standard
+** input to that file. Leading UNIX-style "From" lines are
+** stripped off (after important information is extracted).
+**
+** Parameters:
+** smtpmode -- if set, we are running SMTP: give an RFC821
+** style message to say we are ready to collect
+** input, and never ignore a single dot to mean
+** end of message.
+** requeueflag -- this message will be requeued later, so
+** don't do final processing on it.
+** e -- the current envelope.
+**
+** Returns:
+** none.
+**
+** Side Effects:
+** Temp file is created and filled.
+** The from person may be set.
+*/
+
+char *CollectErrorMessage;
+bool CollectErrno;
+
+collect(smtpmode, requeueflag, e)
+ bool smtpmode;
+ bool requeueflag;
+ register ENVELOPE *e;
+{
+ register FILE *tf;
+ bool ignrdot = smtpmode ? FALSE : IgnrDot;
+ char buf[MAXLINE], buf2[MAXLINE];
+ register char *workbuf, *freebuf;
+ bool inputerr = FALSE;
+ extern char *hvalue();
+ extern bool isheader(), flusheol();
+
+ CollectErrorMessage = NULL;
+ CollectErrno = 0;
+
+ /*
+ ** Create the temp file name and create the file.
+ */
+
+ e->e_df = queuename(e, 'd');
+ e->e_df = newstr(e->e_df);
+ if ((tf = dfopen(e->e_df, O_WRONLY|O_CREAT|O_TRUNC, FileMode)) == NULL)
+ {
+ syserr("Cannot create %s", e->e_df);
+ NoReturn = TRUE;
+ finis();
+ }
+
+ /*
+ ** Tell ARPANET to go ahead.
+ */
+
+ if (smtpmode)
+ message("354 Enter mail, end with \".\" on a line by itself");
+
+ /* set global timer to monitor progress */
+ sfgetset(TimeOuts.to_datablock);
+
+ /*
+ ** Try to read a UNIX-style From line
+ */
+
+ if (sfgets(buf, MAXLINE, InChannel, TimeOuts.to_datablock,
+ "initial message read") == NULL)
+ goto readerr;
+ fixcrlf(buf, FALSE);
+# ifndef NOTUNIX
+ if (!SaveFrom && strncmp(buf, "From ", 5) == 0)
+ {
+ if (!flusheol(buf, InChannel))
+ goto readerr;
+ eatfrom(buf, e);
+ if (sfgets(buf, MAXLINE, InChannel, TimeOuts.to_datablock,
+ "message header read") == NULL)
+ goto readerr;
+ fixcrlf(buf, FALSE);
+ }
+# endif /* NOTUNIX */
+
+ /*
+ ** Copy InChannel to temp file & do message editing.
+ ** To keep certain mailers from getting confused,
+ ** and to keep the output clean, lines that look
+ ** like UNIX "From" lines are deleted in the header.
+ */
+
+ workbuf = buf; /* `workbuf' contains a header field */
+ freebuf = buf2; /* `freebuf' can be used for read-ahead */
+ for (;;)
+ {
+ char *curbuf;
+ int curbuffree;
+ register int curbuflen;
+ char *p;
+
+ /* first, see if the header is over */
+ if (!isheader(workbuf))
+ {
+ fixcrlf(workbuf, TRUE);
+ break;
+ }
+
+ /* if the line is too long, throw the rest away */
+ if (!flusheol(workbuf, InChannel))
+ goto readerr;
+
+ /* it's okay to toss '\n' now (flusheol() needed it) */
+ fixcrlf(workbuf, TRUE);
+
+ curbuf = workbuf;
+ curbuflen = strlen(curbuf);
+ curbuffree = MAXLINE - curbuflen;
+ p = curbuf + curbuflen;
+
+ /* get the rest of this field */
+ for (;;)
+ {
+ int clen;
+
+ if (sfgets(freebuf, MAXLINE, InChannel,
+ TimeOuts.to_datablock,
+ "message header read") == NULL)
+ {
+ freebuf[0] = '\0';
+ break;
+ }
+
+ /* is this a continuation line? */
+ if (*freebuf != ' ' && *freebuf != '\t')
+ break;
+
+ if (!flusheol(freebuf, InChannel))
+ goto readerr;
+
+ fixcrlf(freebuf, TRUE);
+ clen = strlen(freebuf) + 1;
+
+ /* if insufficient room, dynamically allocate buffer */
+ if (clen >= curbuffree)
+ {
+ /* reallocate buffer */
+ int nbuflen = ((p - curbuf) + clen) * 2;
+ char *nbuf = xalloc(nbuflen);
+
+ p = nbuf + curbuflen;
+ curbuffree = nbuflen - curbuflen;
+ bcopy(curbuf, nbuf, curbuflen);
+ if (curbuf != buf && curbuf != buf2)
+ free(curbuf);
+ curbuf = nbuf;
+ }
+ *p++ = '\n';
+ bcopy(freebuf, p, clen - 1);
+ p += clen - 1;
+ curbuffree -= clen;
+ curbuflen += clen;
+ }
+ *p++ = '\0';
+
+ e->e_msgsize += curbuflen;
+
+ /*
+ ** The working buffer now becomes the free buffer, since
+ ** the free buffer contains a new header field.
+ **
+ ** This is premature, since we still havent called
+ ** chompheader() to process the field we just created
+ ** (so the call to chompheader() will use `freebuf').
+ ** This convolution is necessary so that if we break out
+ ** of the loop due to H_EOH, `workbuf' will always be
+ ** the next unprocessed buffer.
+ */
+
+ {
+ register char *tmp = workbuf;
+ workbuf = freebuf;
+ freebuf = tmp;
+ }
+
+ /*
+ ** Snarf header away.
+ */
+
+ if (bitset(H_EOH, chompheader(curbuf, FALSE, e)))
+ break;
+
+ /*
+ ** If the buffer was dynamically allocated, free it.
+ */
+
+ if (curbuf != buf && curbuf != buf2)
+ free(curbuf);
+ }
+
+ if (tTd(30, 1))
+ printf("EOH\n");
+
+ if (*workbuf == '\0')
+ {
+ /* throw away a blank line */
+ if (sfgets(buf, MAXLINE, InChannel, TimeOuts.to_datablock,
+ "message separator read") == NULL)
+ goto readerr;
+ }
+ else if (workbuf == buf2) /* guarantee `buf' contains data */
+ (void) strcpy(buf, buf2);
+
+ /*
+ ** Collect the body of the message.
+ */
+
+ for (;;)
+ {
+ register char *bp = buf;
+
+ fixcrlf(buf, TRUE);
+
+ /* check for end-of-message */
+ if (!ignrdot && buf[0] == '.' && (buf[1] == '\n' || buf[1] == '\0'))
+ break;
+
+ /* check for transparent dot */
+ if ((OpMode == MD_SMTP || OpMode == MD_DAEMON) &&
+ bp[0] == '.' && bp[1] == '.')
+ bp++;
+
+ /*
+ ** Figure message length, output the line to the temp
+ ** file, and insert a newline if missing.
+ */
+
+ e->e_msgsize += strlen(bp) + 1;
+ fputs(bp, tf);
+ fputs("\n", tf);
+ if (ferror(tf))
+ tferror(tf, e);
+ if (sfgets(buf, MAXLINE, InChannel, TimeOuts.to_datablock,
+ "message body read") == NULL)
+ goto readerr;
+ }
+
+ if (feof(InChannel) || ferror(InChannel))
+ {
+readerr:
+ if (tTd(30, 1))
+ printf("collect: read error\n");
+ inputerr = TRUE;
+ }
+
+ /* reset global timer */
+ sfgetset((time_t) 0);
+
+ if (fflush(tf) != 0)
+ tferror(tf, e);
+ if (fsync(fileno(tf)) < 0 || fclose(tf) < 0)
+ {
+ tferror(tf, e);
+ finis();
+ }
+
+ if (CollectErrorMessage != NULL && Errors <= 0)
+ {
+ if (CollectErrno != 0)
+ {
+ errno = CollectErrno;
+ syserr(CollectErrorMessage, e->e_df);
+ finis();
+ }
+ usrerr(CollectErrorMessage);
+ }
+ else if (inputerr && (OpMode == MD_SMTP || OpMode == MD_DAEMON))
+ {
+ /* An EOF when running SMTP is an error */
+ char *host;
+ char *problem;
+
+ host = RealHostName;
+ if (host == NULL)
+ host = "localhost";
+
+ if (feof(InChannel))
+ problem = "unexpected close";
+ else if (ferror(InChannel))
+ problem = "I/O error";
+ else
+ problem = "read timeout";
+# ifdef LOG
+ if (LogLevel > 0 && feof(InChannel))
+ syslog(LOG_NOTICE,
+ "collect: %s on connection from %s, sender=%s: %s\n",
+ problem, host, e->e_from.q_paddr, errstring(errno));
+# endif
+ if (feof(InChannel))
+ usrerr("451 collect: %s on connection from %s, from=%s",
+ problem, host, e->e_from.q_paddr);
+ else
+ syserr("451 collect: %s on connection from %s, from=%s",
+ problem, host, e->e_from.q_paddr);
+
+ /* don't return an error indication */
+ e->e_to = NULL;
+ e->e_flags &= ~EF_FATALERRS;
+ e->e_flags |= EF_CLRQUEUE;
+
+ /* and don't try to deliver the partial message either */
+ if (InChild)
+ ExitStat = EX_QUIT;
+ finis();
+ }
+
+ /*
+ ** Find out some information from the headers.
+ ** Examples are who is the from person & the date.
+ */
+
+ eatheader(e, !requeueflag);
+
+ /* collect statistics */
+ if (OpMode != MD_VERIFY)
+ markstats(e, (ADDRESS *) NULL);
+
+ /*
+ ** Add an Apparently-To: line if we have no recipient lines.
+ */
+
+ if (hvalue("to", e) == NULL && hvalue("cc", e) == NULL &&
+ hvalue("bcc", e) == NULL && hvalue("apparently-to", e) == NULL)
+ {
+ register ADDRESS *q;
+
+ /* create an Apparently-To: field */
+ /* that or reject the message.... */
+ for (q = e->e_sendqueue; q != NULL; q = q->q_next)
+ {
+ if (q->q_alias != NULL)
+ continue;
+ if (tTd(30, 3))
+ printf("Adding Apparently-To: %s\n", q->q_paddr);
+ addheader("Apparently-To", q->q_paddr, e);
+ }
+ }
+
+ /* check for message too large */
+ if (MaxMessageSize > 0 && e->e_msgsize > MaxMessageSize)
+ {
+ usrerr("552 Message exceeds maximum fixed size (%ld)",
+ MaxMessageSize);
+ }
+
+ if ((e->e_dfp = fopen(e->e_df, "r")) == NULL)
+ {
+ /* we haven't acked receipt yet, so just chuck this */
+ syserr("Cannot reopen %s", e->e_df);
+ finis();
+ }
+}
+ /*
+** FLUSHEOL -- if not at EOL, throw away rest of input line.
+**
+** Parameters:
+** buf -- last line read in (checked for '\n'),
+** fp -- file to be read from.
+**
+** Returns:
+** FALSE on error from sfgets(), TRUE otherwise.
+**
+** Side Effects:
+** none.
+*/
+
+bool
+flusheol(buf, fp)
+ char *buf;
+ FILE *fp;
+{
+ register char *p = buf;
+ char junkbuf[MAXLINE];
+
+ while (strchr(p, '\n') == NULL)
+ {
+ CollectErrorMessage = "553 header line too long";
+ CollectErrno = 0;
+ if (sfgets(junkbuf, MAXLINE, fp, TimeOuts.to_datablock,
+ "long line flush") == NULL)
+ return (FALSE);
+ p = junkbuf;
+ }
+
+ return (TRUE);
+}
+ /*
+** TFERROR -- signal error on writing the temporary file.
+**
+** Parameters:
+** tf -- the file pointer for the temporary file.
+**
+** Returns:
+** none.
+**
+** Side Effects:
+** Gives an error message.
+** Arranges for following output to go elsewhere.
+*/
+
+tferror(tf, e)
+ FILE *tf;
+ register ENVELOPE *e;
+{
+ CollectErrno = errno;
+ if (errno == ENOSPC)
+ {
+ struct stat st;
+ long avail;
+ long bsize;
+
+ NoReturn = TRUE;
+ if (fstat(fileno(tf), &st) < 0)
+ st.st_size = 0;
+ (void) freopen(e->e_df, "w", tf);
+ if (st.st_size <= 0)
+ fprintf(tf, "\n*** Mail could not be accepted");
+ else if (sizeof st.st_size > sizeof (long))
+ fprintf(tf, "\n*** Mail of at least %qd bytes could not be accepted\n",
+ st.st_size);
+ else
+ fprintf(tf, "\n*** Mail of at least %ld bytes could not be accepted\n",
+ st.st_size);
+ fprintf(tf, "*** at %s due to lack of disk space for temp file.\n",
+ MyHostName);
+ avail = freespace(QueueDir, &bsize);
+ if (avail > 0)
+ {
+ if (bsize > 1024)
+ avail *= bsize / 1024;
+ else if (bsize < 1024)
+ avail /= 1024 / bsize;
+ fprintf(tf, "*** Currently, %ld kilobytes are available for mail temp files.\n",
+ avail);
+ }
+ CollectErrorMessage = "452 Out of disk space for temp file";
+ }
+ else
+ {
+ CollectErrorMessage = "cannot write message body to disk (%s)";
+ }
+ (void) freopen("/dev/null", "w", tf);
+}
+ /*
+** EATFROM -- chew up a UNIX style from line and process
+**
+** This does indeed make some assumptions about the format
+** of UNIX messages.
+**
+** Parameters:
+** fm -- the from line.
+**
+** Returns:
+** none.
+**
+** Side Effects:
+** extracts what information it can from the header,
+** such as the date.
+*/
+
+# ifndef NOTUNIX
+
+char *DowList[] =
+{
+ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", NULL
+};
+
+char *MonthList[] =
+{
+ "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
+ NULL
+};
+
+eatfrom(fm, e)
+ char *fm;
+ register ENVELOPE *e;
+{
+ register char *p;
+ register char **dt;
+
+ if (tTd(30, 2))
+ printf("eatfrom(%s)\n", fm);
+
+ /* find the date part */
+ p = fm;
+ while (*p != '\0')
+ {
+ /* skip a word */
+ while (*p != '\0' && *p != ' ')
+ p++;
+ while (*p == ' ')
+ p++;
+ if (!(isascii(*p) && isupper(*p)) ||
+ p[3] != ' ' || p[13] != ':' || p[16] != ':')
+ continue;
+
+ /* we have a possible date */
+ for (dt = DowList; *dt != NULL; dt++)
+ if (strncmp(*dt, p, 3) == 0)
+ break;
+ if (*dt == NULL)
+ continue;
+
+ for (dt = MonthList; *dt != NULL; dt++)
+ if (strncmp(*dt, &p[4], 3) == 0)
+ break;
+ if (*dt != NULL)
+ break;
+ }
+
+ if (*p != '\0')
+ {
+ char *q;
+ extern char *arpadate();
+
+ /* we have found a date */
+ q = xalloc(25);
+ (void) strncpy(q, p, 25);
+ q[24] = '\0';
+ q = arpadate(q);
+ define('a', newstr(q), e);
+ }
+}
+
+# endif /* NOTUNIX */
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