3 * mhn.c -- display, list, cache, or store the contents of MIME messages
10 #include <h/signals.h>
14 #include <zotnet/mts/mts.h>
15 #include <zotnet/tws/tws.h>
17 #include <h/mhparse.h>
18 #include <h/mhcachesbr.h>
20 #ifdef HAVE_SYS_WAIT_H
21 # include <sys/wait.h>
25 * We allocate space for message names (msgs array)
26 * this number of elements at a time.
31 static struct swit switches[] = {
63 { "noserialonly", 0 },
76 #define FILESW 22 /* interface from show */
79 { "form formfile", 0 },
83 { "type content", 0 },
85 { "rcache policy", 0 },
87 { "wcache policy", 0 },
94 * switches for debugging
100 * switches for moreproc/mhlproc
103 { "moreproc program", -4 },
105 { "nomoreproc", -3 },
107 { "length lines", -4 },
109 { "width columns", -4 },
112 * switches for mhbuild
119 { "ebcdicsafe", -10 },
121 { "noebcdicsafe", -12 },
123 { "rfc934mode", -10 },
125 { "norfc934mode", -12 },
134 extern char *tmp; /* directory to place temp files */
139 extern char *cache_public;
140 extern char *cache_private;
147 extern int nomore; /* flags for moreproc/header display */
152 extern char *cwd; /* cache current working directory */
157 extern char *parts[NPARTS + 1];
158 extern char *types[NTYPES + 1];
164 /* The list of top-level contents to display */
168 * variables for mhbuild (mhn -build)
170 static int buildsw = 0;
171 static int ebcdicsw = 0;
172 static int rfc934sw = 0;
175 * what action to take?
177 static int cachesw = 0;
178 static int listsw = 0;
179 static int showsw = 0;
180 static int storesw = 0;
182 #define quitser pipeser
185 CT parse_mime (char *);
188 int part_ok (CT, int);
189 int type_ok (CT, int);
190 void set_endian (void);
191 void flush_errors (void);
194 void show_all_messages (CT *);
197 void list_all_messages (CT *, int, int, int, int);
200 void store_all_messages (CT *);
203 void cache_all_messages (CT *);
206 void free_content (CT);
211 static RETSIGTYPE pipeser (int);
215 main (int argc, char **argv)
217 int sizesw = 1, headsw = 1;
218 int nummsgs, maxmsgs, msgnum, *icachesw;
219 char *cp, *file = NULL, *folder = NULL;
220 char *maildir, buf[100], **argp;
221 char **arguments, **msgs;
222 struct msgs *mp = NULL;
227 setlocale(LC_ALL, "");
229 invo_name = r1bindex (argv[0], '/');
231 /* read user profile/context */
234 arguments = getarguments (invo_name, argc, argv, 1);
238 * Allocate the initial space to record message
239 * names, ranges, and sequences.
243 if (!(msgs = (char **) malloc ((size_t) (maxmsgs * sizeof(*msgs)))))
244 adios (NULL, "unable to allocate storage");
249 while ((cp = *argp++)) {
251 switch (smatch (++cp, switches)) {
253 ambigsw (cp, switches);
256 adios (NULL, "-%s unknown", cp);
259 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
261 print_help (buf, switches, 1);
264 print_version(invo_name);
282 icachesw = &rcachesw;
285 icachesw = &wcachesw;
287 if (!(cp = *argp++) || *cp == '-')
288 adios (NULL, "missing argument to %s", argp[-2]);
289 switch (*icachesw = smatch (cp, caches)) {
291 ambigsw (cp, caches);
294 adios (NULL, "%s unknown", cp);
357 if (!(cp = *argp++) || *cp == '-')
358 adios (NULL, "missing argument to %s", argp[-2]);
360 adios (NULL, "too many parts (starting with %s), %d max",
366 if (!(cp = *argp++) || *cp == '-')
367 adios (NULL, "missing argument to %s", argp[-2]);
369 adios (NULL, "too many types (starting with %s), %d max",
375 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
376 adios (NULL, "missing argument to %s", argp[-2]);
377 file = *cp == '-' ? cp : path (cp, TFILE);
381 if (!(cp = *argp++) || *cp == '-')
382 adios (NULL, "missing argument to %s", argp[-2]);
385 formsw = getcpy (etcpath (cp));
389 * Switches for moreproc/mhlproc
392 if (!(progsw = *argp++) || *progsw == '-')
393 adios (NULL, "missing argument to %s", argp[-2]);
401 if (!(cp = *argp++) || *cp == '-')
402 adios (NULL, "missing argument to %s", argp[-2]);
406 * Switches for mhbuild
438 if (*cp == '+' || *cp == '@') {
440 adios (NULL, "only one folder at a time!");
442 folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
445 * Check if we need to allocate more space
446 * for message names/ranges/sequences.
448 if (nummsgs >= maxmsgs) {
450 if (!(msgs = (char **) realloc (msgs,
451 (size_t) (maxmsgs * sizeof(*msgs)))))
452 adios (NULL, "unable to reallocate msgs storage");
454 msgs[nummsgs++] = cp;
458 /* null terminate the list of acceptable parts/types */
464 if ((cp = getenv ("MM_NOASK")) && !strcmp (cp, "1")) {
471 * Check if we've specified an additional profile
473 if ((cp = getenv ("MHN"))) {
474 if ((fp = fopen (cp, "r"))) {
475 readconfig ((struct node **) 0, fp, cp, 0);
478 admonish ("", "unable to read $MHN profile (%s)", cp);
483 * Read the standard profile setup
485 if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
486 readconfig ((struct node **) 0, fp, cp, 0);
490 /* Check for public cache location */
491 if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
494 /* Check for private cache location */
495 if (!(cache_private = context_find (nmhprivcache)))
496 cache_private = ".cache";
497 cache_private = getcpy (m_maildir (cache_private));
500 * Cache the current directory before we do any chdirs()'s.
502 cwd = getcpy (pwd());
505 * Check for storage directory. If specified,
506 * then store temporary files there. Else we
507 * store them in standard nmh directory.
509 if ((cp = context_find (nmhstorage)) && *cp)
510 tmp = concat (cp, "/", invo_name, NULL);
512 tmp = add (m_maildir (invo_name), NULL);
514 if (!context_find ("path"))
515 free (path ("./", TFOLDER));
518 * Process a mhn composition file (mhn -build)
524 if (showsw || storesw || cachesw)
525 adios (NULL, "cannot use -build with -show, -store, -cache");
527 adios (NULL, "need to specify a %s composition file", invo_name);
529 adios (NULL, "only one %s composition file at a time", invo_name);
532 vec[vecp++] = "mhbuild";
535 vec[vecp++] = "-ebcdicsafe";
536 else if (ebcdicsw == -1)
537 vec[vecp++] = "-noebcdicsafe";
540 vec[vecp++] = "-rfc934mode";
541 else if (rfc934sw == -1)
542 vec[vecp++] = "-norfc934mode";
544 vec[vecp++] = msgs[0];
547 execvp ("mhbuild", vec);
548 fprintf (stderr, "unable to exec ");
553 * Process a mhn composition file (old MH style)
555 if (nummsgs == 1 && !folder && !npart && !cachesw
556 && !showsw && !storesw && !ntype && !file
557 && (cp = getenv ("mhdraft"))
558 && strcmp (cp, msgs[0]) == 0) {
564 vec[vecp++] = "mhbuild";
567 vec[vecp++] = "-ebcdicsafe";
568 else if (ebcdicsw == -1)
569 vec[vecp++] = "-noebcdicsafe";
572 vec[vecp++] = "-rfc934mode";
573 else if (rfc934sw == -1)
574 vec[vecp++] = "-norfc934mode";
579 execvp ("mhbuild", vec);
580 fprintf (stderr, "unable to exec ");
585 adios (NULL, "cannot specify msg and file at same time!");
588 * check if message is coming from file
591 if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
592 adios (NULL, "out of memory");
595 if ((ct = parse_mime (file)));
599 * message(s) are coming from a folder
602 msgs[nummsgs++] = "cur";
604 folder = getfolder (1);
605 maildir = m_maildir (folder);
607 if (chdir (maildir) == NOTOK)
608 adios (maildir, "unable to change directory to");
610 /* read folder and create message structure */
611 if (!(mp = folder_read (folder)))
612 adios (NULL, "unable to read folder %s", folder);
614 /* check for empty folder */
616 adios (NULL, "no messages in %s", folder);
618 /* parse all the message ranges/sequences and set SELECTED */
619 for (msgnum = 0; msgnum < nummsgs; msgnum++)
620 if (!m_convert (mp, msgs[msgnum]))
622 seq_setprev (mp); /* set the previous-sequence */
624 if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
625 adios (NULL, "out of memory");
628 for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
629 if (is_selected(mp, msgnum)) {
632 msgnam = m_name (msgnum);
633 if ((ct = parse_mime (msgnam)))
643 * You can't give more than one of these flags
646 if (showsw + listsw + storesw + cachesw > 1)
647 adios (NULL, "can only use one of -show, -list, -store, -cache at same time");
649 /* If no action is specified, assume -show */
650 if (!listsw && !showsw && !storesw && !cachesw)
654 SIGNAL (SIGQUIT, quitser);
655 SIGNAL (SIGPIPE, pipeser);
658 * Get the associated umask for the relevant contents.
660 for (ctp = cts; *ctp; ctp++) {
664 if (type_ok (ct, 1) && !ct->c_umask) {
665 if (stat (ct->c_file, &st) != NOTOK)
666 ct->c_umask = ~(st.st_mode & 0777);
668 ct->c_umask = ~m_gmprot();
673 * List the message content
676 list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
679 * Store the message content
682 store_all_messages (cts);
685 * Cache the message content
688 cache_all_messages (cts);
691 * Show the message content
694 show_all_messages (cts);
696 /* Now free all the structures for the content */
697 for (ctp = cts; *ctp; ctp++)
703 /* If reading from a folder, do some updating */
705 context_replace (pfolder, folder);/* update current folder */
706 seq_setcur (mp, mp->hghsel); /* update current message */
707 seq_save (mp); /* synchronize sequences */
708 context_save (); /* save the context file */
721 fprintf (stderr, "\n");
740 return 1; /* dead code to satisfy the compiler */