3 * sendsbr.c -- routines to help WhatNow/Send along
15 #ifdef TIME_WITH_SYS_TIME
16 # include <sys/time.h>
19 # ifdef TM_IN_SYS_TIME
20 # include <sys/time.h>
26 int debugsw = 0; /* global */
34 char *altmsg = NULL; /* .. */
35 char *annotext = NULL;
36 char *distfile = NULL;
44 int sendsbr (char **, int, char *, struct stat *, int);
46 char *getusername (void);
51 static void alert (char *, int);
52 static int tmp_fd (void);
53 static void anno (int, struct stat *);
54 static void annoaux (int);
55 static int splitmsg (char **, int, char *, struct stat *, int);
56 static int sendaux (char **, int, char *, struct stat *);
60 * Entry point into (back-end) routines to send message.
64 sendsbr (char **vec, int vecp, char *drft, struct stat *st, int rename_drft)
67 char buffer[BUFSIZ], file[BUFSIZ];
71 switch (setjmp (env)) {
74 * If given -push and -unique (which is undocumented), then
75 * rename the draft file. I'm not quite sure why.
77 if (pushsw && unique) {
78 if (rename (drft, strncpy (file, m_scratch (drft, invo_name), sizeof(file)))
80 adios (file, "unable to rename %s to", drft);
85 * Check if we need to split the message into
86 * multiple messages of type "message/partial".
88 if (splitsw >= 0 && !distfile && stat (drft, &sts) != NOTOK
89 && sts.st_size >= CPERMSG) {
90 status = splitmsg (vec, vecp, drft, st, splitsw) ? NOTOK : OK;
92 status = sendaux (vec, vecp, drft, st) ? NOTOK : OK;
95 /* rename the original draft */
96 if (rename_drft && status == OK &&
97 rename (drft, strncpy (buffer, m_backup (drft), sizeof(buffer))) == NOTOK)
98 advise (buffer, "unable to rename %s to", drft);
115 * Split large message into several messages of
116 * type "message/partial" and send them.
120 splitmsg (char **vec, int vecp, char *drft, struct stat *st, int delay)
122 int compnum, nparts, partno, state, status;
125 char *cp, *dp, buffer[BUFSIZ], msgid[BUFSIZ];
126 char subject[BUFSIZ];
127 char name[NAMESZ], partnum[BUFSIZ];
130 if ((in = fopen (drft, "r")) == NULL)
131 adios (drft, "unable to open for reading");
137 * Scan through the message and examine the various header fields,
138 * as well as locate the beginning of the message body.
140 for (compnum = 1, state = FLD;;) {
141 switch (state = m_getfld (state, name, buffer, sizeof(buffer), in)) {
148 * This header field is discarded.
150 if (!strcasecmp (name, "Message-ID")) {
151 while (state == FLDPLUS)
152 state = m_getfld (state, name, buffer, sizeof(buffer), in);
153 } else if (uprf (name, XXX_FIELD_PRF)
154 || !strcasecmp (name, VRSN_FIELD)
155 || !strcasecmp (name, "Subject")
156 || !strcasecmp (name, "Encrypted")) {
158 * These header fields are copied to the enclosed
159 * header of the first message in the collection
160 * of message/partials. For the "Subject" header
161 * field, we also record it, so that a modified
162 * version of it, can be copied to the header
163 * of each messsage/partial in the collection.
165 if (!strcasecmp (name, "Subject")) {
168 strncpy (subject, buffer, BUFSIZ);
169 sublen = strlen (subject);
170 if (sublen > 0 && subject[sublen - 1] == '\n')
171 subject[sublen - 1] = '\0';
174 dp = add (concat (name, ":", buffer, NULL), dp);
175 while (state == FLDPLUS) {
176 state = m_getfld (state, name, buffer, sizeof(buffer), in);
177 dp = add (buffer, dp);
181 * These header fields are copied to the header of
182 * each message/partial in the collection.
184 cp = add (concat (name, ":", buffer, NULL), cp);
185 while (state == FLDPLUS) {
186 state = m_getfld (state, name, buffer, sizeof(buffer), in);
187 cp = add (buffer, cp);
191 if (state != FLDEOF) {
192 start = ftell (in) + 1;
204 adios (NULL, "message format error in component #%d", compnum);
207 adios (NULL, "getfld () returned %d", state);
213 adios (NULL, "headers missing from draft");
217 while (fgets (buffer, sizeof(buffer) - 1, in)) {
220 if ((pos += (len = strlen (buffer))) > CPERMSG) {
226 /* Only one part, nothing to split */
233 return sendaux (vec, vecp, drft, st);
237 printf ("Sending as %d Partial Messages\n", nparts);
242 vec[vecp++] = "-partno";
243 vec[vecp++] = partnum;
245 vec[vecp++] = "-queued";
248 snprintf (msgid, sizeof(msgid), "<%d.%ld@%s>",
249 (int) getpid(), (long) clock, LocalName());
251 fseek (in, start, SEEK_SET);
252 for (partno = 1; partno <= nparts; partno++) {
256 strncpy (tmpdrf, m_scratch (drft, invo_name), sizeof(tmpdrf));
257 if ((out = fopen (tmpdrf, "w")) == NULL)
258 adios (tmpdrf, "unable to open for writing");
259 chmod (tmpdrf, 0600);
262 * Output the header fields
265 fprintf (out, "Subject: %s (part %d of %d)\n", subject, partno, nparts);
266 fprintf (out, "%s: %s\n", VRSN_FIELD, VRSN_VALUE);
267 fprintf (out, "%s: message/partial; id=\"%s\";\n", TYPE_FIELD, msgid);
268 fprintf (out, "\tnumber=%d; total=%d\n", partno, nparts);
269 fprintf (out, "%s: part %d of %d\n\n", DESCR_FIELD, partno, nparts);
272 * If this is the first in the collection, output the
273 * header fields we are encapsulating at the beginning
274 * of the body of the first message.
279 fprintf (out, "Message-ID: %s\n", msgid);
287 if (!fgets (buffer, sizeof(buffer) - 1, in)) {
288 if (partno == nparts)
290 adios (NULL, "premature eof");
293 if ((pos += (len = strlen (buffer))) > CPERMSG) {
294 fseek (in, -len, SEEK_CUR);
302 adios (tmpdrf, "error writing to");
306 if (!pushsw && verbsw) {
311 /* Pause here, if a delay is specified */
312 if (delay > 0 && 1 < partno && partno <= nparts) {
314 printf ("pausing %d seconds before sending part %d...\n",
318 sleep ((unsigned int) delay);
321 snprintf (partnum, sizeof(partnum), "%d", partno);
322 status = sendaux (vec, vecp, tmpdrf, st);
328 * This is so sendaux will only annotate
329 * the altmsg the first time it is called.
338 fclose (in); /* close the draft */
344 * Annotate original message, and
345 * call `postproc' to send message.
349 sendaux (char **vec, int vecp, char *drft, struct stat *st)
352 int i, status, fd, fd2;
353 char backup[BUFSIZ], buf[BUFSIZ];
355 fd = pushsw ? tmp_fd () : NOTOK;
360 if ((fd2 = tmp_fd ()) != NOTOK) {
361 vec[vecp++] = "-idanno";
362 snprintf (buf, sizeof(buf), "%d", fd2);
365 admonish (NULL, "unable to create file for annotation list");
368 if (distfile && distout (drft, distfile, backup) == NOTOK)
372 for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
377 /* oops -- fork error */
378 adios ("fork", "unable to");
379 break; /* NOT REACHED */
383 * child process -- send it
385 * If fd is ok, then we are pushing and fd points to temp
386 * file, so capture anything on stdout and stderr there.
389 dup2 (fd, fileno (stdout));
390 dup2 (fd, fileno (stderr));
393 execvp (postproc, vec);
394 fprintf (stderr, "unable to exec ");
397 break; /* NOT REACHED */
401 * parent process -- wait for it
403 if ((status = pidwait(child_id, NOTOK)) == OK) {
404 if (annotext && fd2 != NOTOK)
408 * If postproc failed, and we have good fd (which means
409 * we pushed), then mail error message (and possibly the
410 * draft) back to the user.
416 advise (NULL, "message not delivered to anyone");
418 if (annotext && fd2 != NOTOK)
422 if (rename (backup, drft) == NOTOK)
423 advise (drft, "unable to rename %s to", backup);
434 * Mail error notification (and possibly a copy of the
435 * message) back to the user, using the mailproc
439 alert (char *file, int out)
445 for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
450 /* oops -- fork error */
451 advise ("fork", "unable to");
454 /* child process -- send it */
455 SIGNAL (SIGHUP, SIG_IGN);
456 SIGNAL (SIGINT, SIG_IGN);
457 SIGNAL (SIGQUIT, SIG_IGN);
458 SIGNAL (SIGTERM, SIG_IGN);
460 if ((in = open (file, O_RDONLY)) == NOTOK) {
461 admonish (file, "unable to re-open");
463 lseek (out, (off_t) 0, SEEK_END);
464 strncpy (buf, "\nMessage not delivered to anyone.\n", sizeof(buf));
465 write (out, buf, strlen (buf));
466 strncpy (buf, "\n------- Unsent Draft\n\n", sizeof(buf));
467 write (out, buf, strlen (buf));
468 cpydgst (in, out, file, "temporary file");
470 strncpy (buf, "\n------- End of Unsent Draft\n", sizeof(buf));
471 write (out, buf, strlen (buf));
472 if (rename (file, strncpy (buf, m_backup (file), sizeof(buf))) == NOTOK)
473 admonish (buf, "unable to rename %s to", file);
476 lseek (out, (off_t) 0, SEEK_SET);
477 dup2 (out, fileno (stdin));
479 /* create subject for error notification */
480 snprintf (buf, sizeof(buf), "send failed on %s",
481 forwsw ? "enclosed draft" : file);
483 execlp (mailproc, r1bindex (mailproc, '/'), getusername (),
484 "-subject", buf, NULL);
485 fprintf (stderr, "unable to exec ");
489 default: /* no waiting... */
501 strncpy (tmpfil, m_tmpfil (invo_name), sizeof(tmpfil));
502 if ((fd = open (tmpfil, O_RDWR | O_CREAT | O_TRUNC, 0600)) == NOTOK)
505 advise (NULL, "temporary file %s selected", tmpfil);
507 if (unlink (tmpfil) == NOTOK)
508 advise (tmpfil, "unable to remove");
515 anno (int fd, struct stat *st)
519 static char *cwd = NULL;
523 (stat (altmsg, &st2) == NOTOK
524 || st->st_mtime != st2.st_mtime
525 || st->st_dev != st2.st_dev
526 || st->st_ino != st2.st_ino)) {
528 admonish (NULL, "$mhaltmsg mismatch");
532 child_id = debugsw ? NOTOK : fork ();
534 case NOTOK: /* oops */
537 "unable to fork, so doing annotations by hand...");
539 cwd = getcpy (pwd ());
542 /* block a few signals */
544 sigaddset (&set, SIGHUP);
545 sigaddset (&set, SIGINT);
546 sigaddset (&set, SIGQUIT);
547 sigaddset (&set, SIGTERM);
548 SIGPROCMASK (SIG_BLOCK, &set, &oset);
554 /* reset the signal mask */
555 SIGPROCMASK (SIG_SETMASK, &oset, &set);
560 default: /* no waiting... */
570 int fd2, fd3, msgnum;
571 char *cp, *folder, *maildir;
572 char buffer[BUFSIZ], **ap;
576 if ((folder = getenv ("mhfolder")) == NULL || *folder == 0) {
578 admonish (NULL, "$mhfolder not set");
581 maildir = m_maildir (folder);
582 if (chdir (maildir) == NOTOK) {
584 admonish (maildir, "unable to change directory to");
587 if (!(mp = folder_read (folder))) {
589 admonish (NULL, "unable to read folder %s");
593 /* check for empty folder */
594 if (mp->nummsg == 0) {
596 admonish (NULL, "no messages in %s", folder);
600 if ((cp = getenv ("mhmessages")) == NULL || *cp == 0) {
602 admonish (NULL, "$mhmessages not set");
605 if (!debugsw /* MOBY HACK... */
607 && (fd3 = open ("/dev/null", O_RDWR)) != NOTOK
608 && (fd2 = dup (fileno (stderr))) != NOTOK) {
609 dup2 (fd3, fileno (stderr));
614 for (ap = brkstring (cp = getcpy (cp), " ", NULL); *ap; ap++)
618 dup2 (fd2, fileno (stderr));
619 if (mp->numsel == 0) {
621 admonish (NULL, "no messages to annotate");
625 lseek (fd, (off_t) 0, SEEK_SET);
626 if ((fp = fdopen (fd, "r")) == NULL) {
628 admonish (NULL, "unable to fdopen annotation list");
632 while (fgets (buffer, sizeof(buffer), fp) != NULL)
633 cp = add (buffer, cp);
637 advise (NULL, "annotate%s with %s: \"%s\"",
638 inplace ? " inplace" : "", annotext, cp);
639 for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
640 if (is_selected(mp, msgnum)) {
642 advise (NULL, "annotate message %d", msgnum);
643 annotate (m_name (msgnum), annotext, cp, inplace, 1);
650 folder_free (mp); /* free folder/message structure */
658 longjmp (env, status ? status : NOTOK);
661 return 1; /* dead code to satisfy the compiler */