3 * mhn.c -- display, list, cache, or store the contents of MIME messages
7 * This code is Copyright (c) 2002, by the authors of nmh. See the
8 * COPYRIGHT file in the root directory of the nmh distribution for
9 * complete copyright information.
14 #include <h/signals.h>
21 #include <h/mhparse.h>
22 #include <h/mhcachesbr.h>
25 #ifdef HAVE_SYS_WAIT_H
26 # include <sys/wait.h>
30 * We allocate space for message names (msgs array)
31 * this number of elements at a time.
36 static struct swit switches[] = {
68 { "noserialonly", 0 },
81 #define FILESW 22 /* interface from show */
84 { "form formfile", 0 },
88 { "type content", 0 },
90 { "rcache policy", 0 },
92 { "wcache policy", 0 },
99 * switches for debugging
105 * switches for moreproc/mhlproc
108 { "moreproc program", -4 },
110 { "nomoreproc", -3 },
112 { "length lines", -4 },
114 { "width columns", -4 },
117 * switches for mhbuild
124 { "ebcdicsafe", -10 },
126 { "noebcdicsafe", -12 },
128 { "rfc934mode", -10 },
130 { "norfc934mode", -12 },
137 extern char *tmp; /* directory to place temp files */
142 extern char *cache_public;
143 extern char *cache_private;
150 extern int nomore; /* flags for moreproc/header display */
155 extern char *cwd; /* cache current working directory */
160 extern char *parts[NPARTS + 1];
161 extern char *types[NTYPES + 1];
167 /* The list of top-level contents to display */
171 * variables for mhbuild (mhn -build)
173 static int buildsw = 0;
174 static int ebcdicsw = 0;
175 static int rfc934sw = 0;
178 * what action to take?
180 static int cachesw = 0;
181 static int listsw = 0;
182 static int showsw = 0;
183 static int storesw = 0;
185 #define quitser pipeser
188 CT parse_mime (char *);
191 int part_ok (CT, int);
192 int type_ok (CT, int);
193 void set_endian (void);
194 void flush_errors (void);
197 void show_all_messages (CT *);
200 void list_all_messages (CT *, int, int, int, int);
203 void store_all_messages (CT *);
206 void cache_all_messages (CT *);
209 void free_content (CT);
214 static RETSIGTYPE pipeser (int);
218 main (int argc, char **argv)
220 int sizesw = 1, headsw = 1;
221 int nummsgs, maxmsgs, msgnum, *icachesw;
222 char *cp, *file = NULL, *folder = NULL;
223 char *maildir, buf[100], **argp;
224 char **arguments, **msgs;
225 struct msgs *mp = NULL;
230 setlocale(LC_ALL, "");
232 invo_name = r1bindex (argv[0], '/');
234 /* read user profile/context */
237 arguments = getarguments (invo_name, argc, argv, 1);
241 * Allocate the initial space to record message
242 * names, ranges, and sequences.
246 msgs = (char **) mh_xmalloc ((size_t) (maxmsgs * sizeof(*msgs)));
251 while ((cp = *argp++)) {
253 switch (smatch (++cp, switches)) {
255 ambigsw (cp, switches);
258 adios (NULL, "-%s unknown", cp);
261 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
263 print_help (buf, switches, 1);
266 print_version(invo_name);
284 icachesw = &rcachesw;
287 icachesw = &wcachesw;
289 if (!(cp = *argp++) || *cp == '-')
290 adios (NULL, "missing argument to %s", argp[-2]);
291 switch (*icachesw = smatch (cp, caches)) {
293 ambigsw (cp, caches);
296 adios (NULL, "%s unknown", cp);
359 if (!(cp = *argp++) || *cp == '-')
360 adios (NULL, "missing argument to %s", argp[-2]);
362 adios (NULL, "too many parts (starting with %s), %d max",
368 if (!(cp = *argp++) || *cp == '-')
369 adios (NULL, "missing argument to %s", argp[-2]);
371 adios (NULL, "too many types (starting with %s), %d max",
377 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
378 adios (NULL, "missing argument to %s", argp[-2]);
379 file = *cp == '-' ? cp : path (cp, TFILE);
383 if (!(cp = *argp++) || *cp == '-')
384 adios (NULL, "missing argument to %s", argp[-2]);
387 formsw = getcpy (etcpath (cp));
391 * Switches for moreproc/mhlproc
394 if (!(progsw = *argp++) || *progsw == '-')
395 adios (NULL, "missing argument to %s", argp[-2]);
403 if (!(cp = *argp++) || *cp == '-')
404 adios (NULL, "missing argument to %s", argp[-2]);
408 * Switches for mhbuild
440 if (*cp == '+' || *cp == '@') {
442 adios (NULL, "only one folder at a time!");
444 folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
447 * Check if we need to allocate more space
448 * for message names/ranges/sequences.
450 if (nummsgs >= maxmsgs) {
452 msgs = (char **) mh_xrealloc (msgs,
453 (size_t) (maxmsgs * sizeof(*msgs)));
455 msgs[nummsgs++] = cp;
459 /* null terminate the list of acceptable parts/types */
465 if ((cp = getenv ("MM_NOASK")) && !strcmp (cp, "1")) {
472 * Check if we've specified an additional profile
474 if ((cp = getenv ("MHN"))) {
475 if ((fp = fopen (cp, "r"))) {
476 readconfig ((struct node **) 0, fp, cp, 0);
479 admonish ("", "unable to read $MHN profile (%s)", cp);
484 * Read the standard profile setup
486 if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
487 readconfig ((struct node **) 0, fp, cp, 0);
491 /* Check for public cache location */
492 if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
495 /* Check for private cache location */
496 if (!(cache_private = context_find (nmhprivcache)))
497 cache_private = ".cache";
498 cache_private = getcpy (m_maildir (cache_private));
501 * Cache the current directory before we do any chdirs()'s.
503 cwd = getcpy (pwd());
506 * Check for storage directory. If specified,
507 * then store temporary files there. Else we
508 * store them in standard nmh directory.
510 if ((cp = context_find (nmhstorage)) && *cp)
511 tmp = concat (cp, "/", invo_name, NULL);
513 tmp = add (m_maildir (invo_name), NULL);
515 if (!context_find ("path"))
516 free (path ("./", TFOLDER));
519 * Process a mhn composition file (mhn -build)
525 if (showsw || storesw || cachesw)
526 adios (NULL, "cannot use -build with -show, -store, -cache");
528 adios (NULL, "need to specify a %s composition file", invo_name);
530 adios (NULL, "only one %s composition file at a time", invo_name);
533 vec[vecp++] = "mhbuild";
536 vec[vecp++] = "-ebcdicsafe";
537 else if (ebcdicsw == -1)
538 vec[vecp++] = "-noebcdicsafe";
541 vec[vecp++] = "-rfc934mode";
542 else if (rfc934sw == -1)
543 vec[vecp++] = "-norfc934mode";
545 vec[vecp++] = msgs[0];
548 execvp ("mhbuild", vec);
549 fprintf (stderr, "unable to exec ");
554 * Process a mhn composition file (old MH style)
556 if (nummsgs == 1 && !folder && !npart && !cachesw
557 && !showsw && !storesw && !ntype && !file
558 && (cp = getenv ("mhdraft"))
559 && strcmp (cp, msgs[0]) == 0) {
565 vec[vecp++] = "mhbuild";
568 vec[vecp++] = "-ebcdicsafe";
569 else if (ebcdicsw == -1)
570 vec[vecp++] = "-noebcdicsafe";
573 vec[vecp++] = "-rfc934mode";
574 else if (rfc934sw == -1)
575 vec[vecp++] = "-norfc934mode";
580 execvp ("mhbuild", vec);
581 fprintf (stderr, "unable to exec ");
586 adios (NULL, "cannot specify msg and file at same time!");
589 * check if message is coming from file
592 if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
593 adios (NULL, "out of memory");
596 if ((ct = parse_mime (file)));
600 * message(s) are coming from a folder
603 msgs[nummsgs++] = "cur";
605 folder = getfolder (1);
606 maildir = m_maildir (folder);
608 if (chdir (maildir) == NOTOK)
609 adios (maildir, "unable to change directory to");
611 /* read folder and create message structure */
612 if (!(mp = folder_read (folder)))
613 adios (NULL, "unable to read folder %s", folder);
615 /* check for empty folder */
617 adios (NULL, "no messages in %s", folder);
619 /* parse all the message ranges/sequences and set SELECTED */
620 for (msgnum = 0; msgnum < nummsgs; msgnum++)
621 if (!m_convert (mp, msgs[msgnum]))
623 seq_setprev (mp); /* set the previous-sequence */
625 if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
626 adios (NULL, "out of memory");
629 for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
630 if (is_selected(mp, msgnum)) {
633 msgnam = m_name (msgnum);
634 if ((ct = parse_mime (msgnam)))
644 * You can't give more than one of these flags
647 if (showsw + listsw + storesw + cachesw > 1)
648 adios (NULL, "can only use one of -show, -list, -store, -cache at same time");
650 /* If no action is specified, assume -show */
651 if (!listsw && !showsw && !storesw && !cachesw)
655 SIGNAL (SIGQUIT, quitser);
656 SIGNAL (SIGPIPE, pipeser);
659 * Get the associated umask for the relevant contents.
661 for (ctp = cts; *ctp; ctp++) {
665 if (type_ok (ct, 1) && !ct->c_umask) {
666 if (stat (ct->c_file, &st) != NOTOK)
667 ct->c_umask = ~(st.st_mode & 0777);
669 ct->c_umask = ~m_gmprot();
674 * List the message content
677 list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
680 * Store the message content
683 store_all_messages (cts);
686 * Cache the message content
689 cache_all_messages (cts);
692 * Show the message content
695 show_all_messages (cts);
697 /* Now free all the structures for the content */
698 for (ctp = cts; *ctp; ctp++)
704 /* If reading from a folder, do some updating */
706 context_replace (pfolder, folder);/* update current folder */
707 seq_setcur (mp, mp->hghsel); /* update current message */
708 seq_save (mp); /* synchronize sequences */
709 context_save (); /* save the context file */
722 fprintf (stderr, "\n");
741 return 1; /* dead code to satisfy the compiler */