2 ** forw.c -- forward a message, or group of messages.
4 ** This code is Copyright (c) 2002, by the authors of nmh. See the
5 ** COPYRIGHT file in the root directory of the nmh distribution for
6 ** complete copyright information.
11 #include <h/fmt_scan.h>
16 #define IFORMAT "digest-issue-%s"
17 #define VFORMAT "digest-volume-%s"
19 static struct swit switches[] = {
25 { "editor editor", 0 },
29 { "filter filterfile", 0 },
31 { "form formfile", 0 },
47 { "issue number", 0 },
49 { "volume number", 0 },
51 { "whatnowproc program", 0 },
53 { "nowhatnowproc", 0 },
55 { "dashstuffing", 0 }, /* interface to mhl */
56 #define NBITSTUFFSW 18
57 { "nodashstuffing", 0 },
63 { "file file", 4 }, /* interface from msh */
67 { "build", 5 }, /* interface from mhe */
73 static char drft[BUFSIZ];
75 static char delim3[] =
76 "\n------------------------------------------------------------\n\n";
77 static char delim4[] = "\n------------------------------\n\n";
80 static struct msgs *mp = NULL; /* used a lot */
86 static void mhl_draft(int, char *, int, int, char *, char *, int);
87 static void copy_draft(int, char *, char *, int, int, int);
88 static void copy_mime_draft(int);
89 static int build_form(char *, char *, int, int);
93 main(int argc, char **argv)
95 int msgp = 0, anot = 0, inplace = 1, mime = 0;
96 int issue = 0, volume = 0, dashstuff = 0;
97 int nedit = 0, nwhat = 0, in;
99 char *cp, *cwd, *maildir;
100 char *digest = NULL, *ed = NULL;
101 char *file = NULL, *filter = NULL, *folder = NULL;
102 char *form = NULL, buf[BUFSIZ], value[10];
103 char **argp, **arguments, *msgs[MAXARGS];
110 setlocale(LC_ALL, "");
112 invo_name = mhbasename(argv[0]);
114 /* read user profile/context */
117 arguments = getarguments(invo_name, argc, argv, 1);
120 while ((cp = *argp++)) {
122 switch (smatch(++cp, switches)) {
124 ambigsw(cp, switches);
127 adios(NULL, "-%s unknown", cp);
130 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
131 print_help(buf, switches, 1);
134 print_version(invo_name);
145 if (!(ed = *argp++) || *ed == '-')
146 adios(NULL, "missing argument to %s", argp[-2]);
154 if (!(whatnowproc = *argp++) || *whatnowproc == '-')
155 adios(NULL, "missing argument to %s", argp[-2]);
160 buildsw++; /* fall... */
168 adios(NULL, "only one file at a time!");
169 if (!(cp = *argp++) || *cp == '-')
170 adios(NULL, "missing argument to %s", argp[-2]);
171 file = getcpy(expanddir(cp));
174 if (!(cp = *argp++) || *cp == '-')
175 adios(NULL, "missing argument to %s", argp[-2]);
176 filter = getcpy(etcpath(cp));
180 if (!(form = *argp++) || *form == '-')
181 adios(NULL, "missing argument to %s", argp[-2]);
185 filter = getcpy(etcpath(mhlforward));
207 if (!(digest = *argp++) || *digest == '-')
208 adios(NULL, "missing argument to %s", argp[-2]);
212 if (!(cp = *argp++) || *cp == '-')
213 adios(NULL, "missing argument to %s", argp[-2]);
214 if ((issue = atoi(cp)) < 1)
215 adios(NULL, "bad argument %s %s", argp[-2], cp);
218 if (!(cp = *argp++) || *cp == '-')
219 adios(NULL, "missing argument to %s", argp[-2]);
220 if ((volume = atoi(cp)) < 1)
221 adios(NULL, "bad argument %s %s", argp[-2], cp);
225 dashstuff = 1; /* trinary logic */
228 dashstuff = -1; /* trinary logic */
232 if (*cp == '+' || *cp == '@') {
234 adios(NULL, "only one folder at a time!");
236 folder = getcpy(expandfol(cp));
244 if (file && (msgp || folder))
245 adios(NULL, "can't mix files and folders/msgs");
248 strncpy(drft, buildsw ? toabsdir("draft")
249 : m_draft("new"), sizeof(drft));
251 strncpy(drft, m_draft("new"), sizeof(drft));
256 ** Forwarding a file.
258 anot = 0; /* don't want to annotate a file */
261 ** Forwarding a message.
264 msgs[msgp++] = "cur";
266 folder = getcurfol();
267 maildir = toabsdir(folder);
269 if (chdir(maildir) == NOTOK)
270 adios(maildir, "unable to change directory to");
272 /* read folder and create message structure */
273 if (!(mp = folder_read(folder)))
274 adios(NULL, "unable to read folder %s", folder);
276 /* check for empty folder */
278 adios(NULL, "no messages in %s", folder);
280 /* parse all the message ranges/sequences and set SELECTED */
281 for (msgnum = 0; msgnum < msgp; msgnum++)
282 if (!m_convert(mp, msgs[msgnum]))
284 seq_setprev(mp); /* set the previous sequence */
287 if (filter && access(filter, R_OK) == NOTOK)
288 adios(filter, "unable to read");
291 ** Open form (component) file.
295 snprintf(buf, sizeof(buf), IFORMAT, digest);
296 if (volume == 0 && (cp = context_find(buf))
297 && ((issue = atoi(cp)) < 0))
302 snprintf(buf, sizeof(buf), VFORMAT, digest);
303 if ((cp = context_find(buf)) == NULL ||
304 (volume = atoi(cp)) <= 0)
308 in = build_form(form, digest, volume, issue);
310 in = open_form(&form, forwcomps);
312 if ((out = creat(drft, m_gmprot())) == NOTOK)
313 adios(drft, "unable to create");
316 ** copy the components into the draft
318 cpydata(in, out, form, drft);
322 /* just copy the file into the draft */
323 if ((in = open(file, O_RDONLY)) == NOTOK)
324 adios(file, "unable to open");
325 cpydata(in, out, file, drft);
330 ** If filter file is defined, then format the
331 ** messages into the draft using mhlproc.
334 mhl_draft(out, digest, volume, issue, drft, filter,
337 copy_mime_draft(out);
339 copy_draft(out, digest, drft, volume, issue,
344 snprintf(buf, sizeof(buf), IFORMAT, digest);
345 snprintf(value, sizeof(value), "%d", issue);
346 context_replace(buf, getcpy(value));
347 snprintf(buf, sizeof(buf), VFORMAT, digest);
348 snprintf(value, sizeof(value), "%d", volume);
349 context_replace(buf, getcpy(value));
352 context_replace(curfolder, folder); /* update current folder */
353 seq_setcur(mp, mp->lowsel); /* update current message */
354 seq_save(mp); /* synchronize sequences */
355 context_save(); /* save the context file */
360 what_now(ed, nedit, NOUSE, drft, NULL, 0, mp,
361 anot ? "Forwarded" : NULL, inplace, cwd);
368 ** Filter the messages you are forwarding, into the
369 ** draft calling the mhlproc, and reading its output
374 mhl_draft(int out, char *digest, int volume, int issue,
375 char *file, char *filter, int dashstuff)
378 int i, msgnum, pd[2];
383 if (pipe(pd) == NOTOK)
384 adios("pipe", "unable to create");
386 vec[0] = mhbasename(mhlproc);
388 for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
392 adios("fork", "unable to");
400 vec[i++] = "-forwall";
405 vec[i++] = "-digest";
408 snprintf(buf1, sizeof(buf1), "%d", issue);
410 vec[i++] = "-volume";
411 snprintf(buf2, sizeof(buf2), "%d", volume);
416 ** Are we dashstuffing (quoting) the lines that begin
417 ** with `-'. We use the mhl default (don't add any
418 ** flag) unless the user has specified a specific flag.
421 vec[i++] = "-dashstuffing";
422 else if (dashstuff < 0)
423 vec[i++] = "-nodashstuffing";
425 if (mp->numsel >= MAXARGS - i)
426 adios(NULL, "more than %d messages for %s exec", MAXARGS - i, vec[0]);
429 ** Now add the message names to filter. We can only
430 ** handle about 995 messages (because vec is fixed
431 ** size), but that should be plenty.
433 for (msgnum = mp->lowsel;
434 msgnum <= mp->hghsel && i < sizeof(vec) - 1;
436 if (is_selected(mp, msgnum))
437 vec[i++] = getcpy(m_name(msgnum));
440 execvp(mhlproc, vec);
441 fprintf(stderr, "unable to exec ");
447 cpydata(pd[0], out, vec[0], file);
449 pidXwait(child_id, mhlproc);
456 ** Copy the messages into the draft. The messages are
457 ** not filtered through the mhlproc. Do dashstuffing if
462 copy_draft(int out, char *digest, char *file, int volume, int issue,
465 int fd,i, msgcnt, msgnum;
467 register char *bp, *msgnam;
471 for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
472 if (is_selected(mp, msgnum)) {
474 strncpy(buffer, msgnum == mp->lowsel ?
475 delim3 : delim4, sizeof(buffer));
477 /* Get buffer ready to go */
479 buflen = sizeof(buffer);
481 strncpy(bp, "\n-------", buflen);
486 if (msgnum == mp->lowsel) {
487 snprintf(bp, buflen, " Forwarded Message%s", mp->numsel > 1 ? "s" : "");
489 snprintf(bp, buflen, " Message %d", msgcnt);
495 strncpy(bp, "\n\n", buflen);
497 write(out, buffer, strlen(buffer));
499 if ((fd = open(msgnam = m_name (msgnum), O_RDONLY))
501 admonish(msgnam, "unable to read message");
506 ** Copy the message. Add RFC934 quoting (dashstuffing)
507 ** unless given the -nodashstuffing flag.
510 cpydgst(fd, out, msgnam, file);
512 cpydata(fd, out, msgnam, file);
520 strncpy(buffer, delim4, sizeof(buffer));
522 snprintf(buffer, sizeof(buffer),
523 "\n------- End of Forwarded Message%s\n\n",
524 mp->numsel > 1 ? "s" : "");
526 write(out, buffer, strlen(buffer));
529 snprintf(buffer, sizeof(buffer),
530 "End of %s Digest [Volume %d Issue %d]\n",
531 digest, volume, issue);
533 for (bp = buffer + i; i > 1; i--)
537 write(out, buffer, strlen(buffer));
543 ** Create a mhbuild composition file for forwarding message.
547 copy_mime_draft(int out)
552 snprintf(buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
553 mp->numsel == 1 ? "" : "s", mp->foldpath);
554 write(out, buffer, strlen(buffer));
555 for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
556 if (is_selected(mp, msgnum)) {
557 snprintf(buffer, sizeof(buffer), " %s",
559 write(out, buffer, strlen(buffer));
566 build_form(char *form, char *digest, int volume, int issue)
571 char *line, tmpfil[BUFSIZ];
573 register struct comp *cptr;
578 /* Get new format string */
579 nfs = new_fs(form, NULL, NULL);
580 fmtsize = strlen(nfs) + 256;
582 /* Compile format string */
583 fmt_compile(nfs, &fmt);
585 FINDCOMP(cptr, "digest");
587 cptr->c_text = digest;
588 FINDCOMP(cptr, "date");
590 cptr->c_text = getcpy(dtimenow(0));
598 cp = m_mktemp2(NULL, invo_name, NULL, &tmp);
599 if (cp == NULL) adios("forw", "unable to create temporary file");
600 strncpy(tmpfil, cp, sizeof(tmpfil));
602 if ((in = dup(fileno(tmp))) == NOTOK)
603 adios("dup", "unable to");
605 line = mh_xmalloc((unsigned) fmtsize);
606 fmt_scan(fmt, line, fmtsize, dat);
610 adios(tmpfil, "error writing");
612 lseek(in, (off_t) 0, SEEK_SET);