-/*
- * Split large message into several messages of
- * type "message/partial" and send them.
- */
-
-static int
-splitmsg (char **vec, int vecp, char *program, char *drft,
- struct stat *st, int delay)
-{
- int compnum, nparts, partno, state, status;
- long pos, start;
- time_t clock;
- char *cp, *dp, buffer[NMH_BUFSIZ], msgid[BUFSIZ];
- char subject[BUFSIZ];
- char name[NAMESZ], partnum[BUFSIZ];
- FILE *in;
- m_getfld_state_t gstate;
-
- if ((in = fopen (drft, "r")) == NULL)
- adios (drft, "unable to open for reading");
-
- cp = dp = NULL;
- start = 0L;
-
- /*
- * Scan through the message and examine the various header fields,
- * as well as locate the beginning of the message body.
- */
- gstate = m_getfld_state_init(in);
- m_getfld_track_filepos2(&gstate);
- for (compnum = 1;;) {
- int bufsz = sizeof buffer;
- switch (state = m_getfld2(&gstate, name, buffer, &bufsz)) {
- case FLD:
- case FLDPLUS:
- compnum++;
-
- /*
- * This header field is discarded.
- */
- if (!strcasecmp (name, "Message-ID")) {
- while (state == FLDPLUS) {
- bufsz = sizeof buffer;
- state = m_getfld2(&gstate, name, buffer, &bufsz);
- }
- } else if (uprf (name, XXX_FIELD_PRF)
- || !strcasecmp (name, VRSN_FIELD)
- || !strcasecmp (name, "Subject")
- || !strcasecmp (name, "Encrypted")) {
- /*
- * These header fields are copied to the enclosed
- * header of the first message in the collection
- * of message/partials. For the "Subject" header
- * field, we also record it, so that a modified
- * version of it, can be copied to the header
- * of each message/partial in the collection.
- */
- if (!strcasecmp (name, "Subject")) {
- strncpy (subject, buffer, BUFSIZ);
- trim_suffix_c(subject, '\n');
- }
-
- dp = add (concat (name, ":", buffer, NULL), dp);
- while (state == FLDPLUS) {
- bufsz = sizeof buffer;
- state = m_getfld2(&gstate, name, buffer, &bufsz);
- dp = add (buffer, dp);
- }
- } else {
- /*
- * These header fields are copied to the header of
- * each message/partial in the collection.
- */
- cp = add (concat (name, ":", buffer, NULL), cp);
- while (state == FLDPLUS) {
- bufsz = sizeof buffer;
- state = m_getfld2(&gstate, name, buffer, &bufsz);
- cp = add (buffer, cp);
- }
- }
-
- start = ftell (in) + 1;
- continue;
-
- case BODY:
- case FILEEOF:
- break;
-
- case LENERR:
- case FMTERR:
- die("message format error in component #%d", compnum);
-
- default:
- die("getfld () returned %d", state);
- }
-
- break;
- }
- m_getfld_state_destroy (&gstate);
- if (cp == NULL)
- die("headers missing from draft");
-
- nparts = 1;
- pos = start;
- while (fgets (buffer, sizeof buffer, in)) {
- long len;
-
- if ((pos += (len = strlen (buffer))) > CPERMSG) {
- nparts++;
- pos = len;
- }
- }
-
- /* Only one part, nothing to split */
- if (nparts == 1) {
- free (cp);
- free(dp);
-
- fclose (in);
- return sendaux (vec, vecp, program, drft, st);
- }
-
- if (!pushsw) {
- printf ("Sending as %d Partial Messages\n", nparts);
- fflush (stdout);
- }
- status = OK;
-
- vec[vecp++] = "-partno";
- vec[vecp++] = partnum;
- if (delay == 0)
- vec[vecp++] = "-queued";
-
- time (&clock);
- snprintf (msgid, sizeof(msgid), "%s", message_id (clock, 0));
-
- fseek (in, start, SEEK_SET);
- for (partno = 1; partno <= nparts; partno++) {
- char tmpdrf[BUFSIZ];
- FILE *out;
-
- char *cp = m_mktemp2(drft, invo_name, NULL, &out);
- if (cp == NULL) {
- die("unable to create temporary file");
- }
- strncpy(tmpdrf, cp, sizeof(tmpdrf));
-
- /*
- * Output the header fields
- */
- fputs (cp, out);
- fprintf (out, "Subject: %s (part %d of %d)\n", subject, partno, nparts);
- fprintf (out, "%s: %s\n", VRSN_FIELD, VRSN_VALUE);
- fprintf (out, "%s: message/partial; id=\"%s\";\n", TYPE_FIELD, msgid);
- fprintf (out, "\tnumber=%d; total=%d\n", partno, nparts);
- fprintf (out, "%s: part %d of %d\n\n", DESCR_FIELD, partno, nparts);
-
- /*
- * If this is the first in the collection, output the
- * header fields we are encapsulating at the beginning
- * of the body of the first message.
- */
- if (partno == 1) {
- if (dp)
- fputs (dp, out);
- fprintf (out, "Message-ID: %s\n", msgid);
- fprintf (out, "\n");
- }
-
- pos = 0;
- for (;;) {
- long len;
-
- if (!fgets (buffer, sizeof buffer, in)) {
- if (partno == nparts)
- break;
- die("premature eof");
- }
-
- if ((pos += (len = strlen (buffer))) > CPERMSG) {
- fseek (in, -len, SEEK_CUR);
- break;
- }
-
- fputs (buffer, out);
- }
-
- if (fflush (out))
- adios (tmpdrf, "error writing to");
-
- fclose (out);
-
- if (!pushsw && verbsw) {
- putchar('\n');
- fflush (stdout);
- }
-
- /* Pause here, if a delay is specified */
- if (delay > 0 && 1 < partno && partno <= nparts) {
- if (!pushsw) {
- printf ("pausing %d seconds before sending part %d...\n",
- delay, partno);
- fflush (stdout);
- }
- sleep ((unsigned int) delay);
- }
-
- snprintf (partnum, sizeof(partnum), "%d", partno);
- status = sendaux (vec, vecp, program, tmpdrf, st);
- (void) m_unlink (tmpdrf);
- if (status != OK)
- break;
-
- /*
- * This is so sendaux will only annotate
- * the altmsg the first time it is called.
- */
- annotext = NULL;
- }
-
- free (cp);
- free(dp);
-
- fclose (in); /* close the draft */
- return status;
-}
-
projects / nmh / commitdiff