diplodocus.org Git - nmh/blob - uip/mhlist.c

   1
   2 /*
   3  * mhlist.c -- list the contents of MIME messages
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <fcntl.h>
  12 #include <h/signals.h>
  13 #include <h/md5.h>
  14 #include <h/mts.h>
  15 #include <h/tws.h>
  16 #include <h/mime.h>
  17 #include <h/mhparse.h>
  18 #include <h/mhcachesbr.h>
  19 #include <h/utils.h>
  20
  21 #define MHLIST_SWITCHES \
  22     X("check", 0, CHECKSW) \
  23     X("nocheck", 0, NCHECKSW) \
  24     X("headers", 0, HEADSW) \
  25     X("noheaders", 0, NHEADSW) \
  26     X("realsize", 0, SIZESW) \
  27     X("norealsize", 0, NSIZESW) \
  28     X("verbose", 0, VERBSW) \
  29     X("noverbose", 0, NVERBSW) \
  30     X("file file", 0, FILESW) \
  31     X("part number", 0, PARTSW) \
  32     X("type content", 0, TYPESW) \
  33     X("rcache policy", 0, RCACHESW) \
  34     X("wcache policy", 0, WCACHESW) \
  35     X("version", 0, VERSIONSW) \
  36     X("help", 0, HELPSW) \
  37     X("debug", -5, DEBUGSW) \
  38
  39 #define X(sw, minchars, id) id,
  40 DEFINE_SWITCH_ENUM(MHLIST);
  41 #undef X
  42
  43 #define X(sw, minchars, id) { sw, minchars, id },
  44 DEFINE_SWITCH_ARRAY(MHLIST, switches);
  45 #undef X
  46
  47
  48 /* mhparse.c */
  49 extern char *tmp;       /* directory to place temp files */
  50
  51 /* mhcachesbr.c */
  52 extern int rcachesw;
  53 extern int wcachesw;
  54 extern char *cache_public;
  55 extern char *cache_private;
  56
  57 /* mhmisc.c */
  58 extern int npart;
  59 extern int ntype;
  60 extern char *parts[NPARTS + 1];
  61 extern char *types[NTYPES + 1];
  62 extern int userrs;
  63
  64 /*
  65  * This is currently needed to keep mhparse happy.
  66  * This needs to be changed.
  67  */
  68 pid_t xpid  = 0;
  69
  70 int debugsw = 0;
  71 int verbosw = 0;
  72
  73 #define quitser pipeser
  74
  75 /* mhparse.c */
  76 CT parse_mime (char *);
  77
  78 /* mhmisc.c */
  79 int part_ok (CT, int);
  80 int type_ok (CT, int);
  81 void flush_errors (void);
  82
  83 /* mhlistsbr.c */
  84 void list_all_messages (CT *, int, int, int, int);
  85
  86 /* mhfree.c */
  87 extern CT *cts;
  88 void freects_done (int) NORETURN;
  89
  90 /*
  91  * static prototypes
  92  */
  93 static void pipeser (int);
  94
  95
  96 int
  97 main (int argc, char **argv)
  98 {
  99     int sizesw = 1, headsw = 1;
 100     int msgnum, *icachesw;
 101     char *cp, *file = NULL, *folder = NULL;
 102     char *maildir, buf[100], **argp;
 103     char **arguments;
 104     struct msgs_array msgs = { 0, 0, NULL };
 105     struct msgs *mp = NULL;
 106     CT ct, *ctp;
 107
 108     done=freects_done;
 109
 110 #ifdef LOCALE
 111     setlocale(LC_ALL, "");
 112 #endif
 113     invo_name = r1bindex (argv[0], '/');
 114
 115     /* read user profile/context */
 116     context_read();
 117
 118     arguments = getarguments (invo_name, argc, argv, 1);
 119     argp = arguments;
 120
 121     /*
 122      * Parse arguments
 123      */
 124     while ((cp = *argp++)) {
 125         if (*cp == '-') {
 126             switch (smatch (++cp, switches)) {
 127             case AMBIGSW:
 128                 ambigsw (cp, switches);
 129                 done (1);
 130             case UNKWNSW:
 131                 adios (NULL, "-%s unknown", cp);
 132
 133             case HELPSW:
 134                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 135                         invo_name);
 136                 print_help (buf, switches, 1);
 137                 done (0);
 138             case VERSIONSW:
 139                 print_version(invo_name);
 140                 done (0);
 141
 142             case RCACHESW:
 143                 icachesw = &rcachesw;
 144                 goto do_cache;
 145             case WCACHESW:
 146                 icachesw = &wcachesw;
 147 do_cache:
 148                 if (!(cp = *argp++) || *cp == '-')
 149                     adios (NULL, "missing argument to %s", argp[-2]);
 150                 switch (*icachesw = smatch (cp, caches)) {
 151                 case AMBIGSW:
 152                     ambigsw (cp, caches);
 153                     done (1);
 154                 case UNKWNSW:
 155                     adios (NULL, "%s unknown", cp);
 156                 default:
 157                     break;
 158                 }
 159                 continue;
 160
 161             case CHECKSW:
 162                 checksw++;
 163                 continue;
 164             case NCHECKSW:
 165                 checksw = 0;
 166                 continue;
 167
 168             case HEADSW:
 169                 headsw = 1;
 170                 continue;
 171             case NHEADSW:
 172                 headsw = 0;
 173                 continue;
 174
 175             case SIZESW:
 176                 sizesw = 1;
 177                 continue;
 178             case NSIZESW:
 179                 sizesw = 0;
 180                 continue;
 181
 182             case PARTSW:
 183                 if (!(cp = *argp++) || *cp == '-')
 184                     adios (NULL, "missing argument to %s", argp[-2]);
 185                 if (npart >= NPARTS)
 186                     adios (NULL, "too many parts (starting with %s), %d max",
 187                            cp, NPARTS);
 188                 parts[npart++] = cp;
 189                 continue;
 190
 191             case TYPESW:
 192                 if (!(cp = *argp++) || *cp == '-')
 193                     adios (NULL, "missing argument to %s", argp[-2]);
 194                 if (ntype >= NTYPES)
 195                     adios (NULL, "too many types (starting with %s), %d max",
 196                            cp, NTYPES);
 197                 types[ntype++] = cp;
 198                 continue;
 199
 200             case FILESW:
 201                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 202                     adios (NULL, "missing argument to %s", argp[-2]);
 203                 file = *cp == '-' ? cp : path (cp, TFILE);
 204                 continue;
 205
 206             case VERBSW:
 207                 verbosw = 1;
 208                 continue;
 209             case NVERBSW:
 210                 verbosw = 0;
 211                 continue;
 212             case DEBUGSW:
 213                 debugsw = 1;
 214                 continue;
 215             }
 216         }
 217         if (*cp == '+' || *cp == '@') {
 218             if (folder)
 219                 adios (NULL, "only one folder at a time!");
 220             else
 221                 folder = pluspath (cp);
 222         } else
 223                 app_msgarg(&msgs, cp);
 224     }
 225
 226     /* null terminate the list of acceptable parts/types */
 227     parts[npart] = NULL;
 228     types[ntype] = NULL;
 229
 230     /* Check for public cache location */
 231     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 232         cache_public = NULL;
 233
 234     /* Check for private cache location */
 235     if (!(cache_private = context_find (nmhprivcache)))
 236         cache_private = ".cache";
 237     cache_private = getcpy (m_maildir (cache_private));
 238
 239     /*
 240      * Check for storage directory.  If specified,
 241      * then store temporary files there.  Else we
 242      * store them in standard nmh directory.
 243      */
 244     if ((cp = context_find (nmhstorage)) && *cp)
 245         tmp = concat (cp, "/", invo_name, NULL);
 246     else
 247         tmp = add (m_maildir (invo_name), NULL);
 248
 249     if (!context_find ("path"))
 250         free (path ("./", TFOLDER));
 251
 252     if (file && msgs.size)
 253         adios (NULL, "cannot specify msg and file at same time!");
 254
 255     /*
 256      * check if message is coming from file
 257      */
 258     if (file) {
 259         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 260             adios (NULL, "out of memory");
 261         ctp = cts;
 262
 263         if ((ct = parse_mime (file)))
 264             *ctp++ = ct;
 265     } else {
 266         /*
 267          * message(s) are coming from a folder
 268          */
 269         if (!msgs.size)
 270             app_msgarg(&msgs, "cur");
 271         if (!folder)
 272             folder = getfolder (1);
 273         maildir = m_maildir (folder);
 274
 275         if (chdir (maildir) == NOTOK)
 276             adios (maildir, "unable to change directory to");
 277
 278         /* read folder and create message structure */
 279         if (!(mp = folder_read (folder, 0)))
 280             adios (NULL, "unable to read folder %s", folder);
 281
 282         /* check for empty folder */
 283         if (mp->nummsg == 0)
 284             adios (NULL, "no messages in %s", folder);
 285
 286         /* parse all the message ranges/sequences and set SELECTED */
 287         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 288             if (!m_convert (mp, msgs.msgs[msgnum]))
 289                 done (1);
 290         seq_setprev (mp);       /* set the previous-sequence */
 291
 292         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 293             adios (NULL, "out of memory");
 294         ctp = cts;
 295
 296         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 297             if (is_selected(mp, msgnum)) {
 298                 char *msgnam;
 299
 300                 msgnam = m_name (msgnum);
 301                 if ((ct = parse_mime (msgnam)))
 302                     *ctp++ = ct;
 303             }
 304         }
 305     }
 306
 307     if (!*cts)
 308         done (1);
 309
 310     userrs = 1;
 311     SIGNAL (SIGQUIT, quitser);
 312     SIGNAL (SIGPIPE, pipeser);
 313
 314     /*
 315      * Get the associated umask for the relevant contents.
 316      */
 317     for (ctp = cts; *ctp; ctp++) {
 318         struct stat st;
 319
 320         ct = *ctp;
 321         if (type_ok (ct, 1) && !ct->c_umask) {
 322             if (stat (ct->c_file, &st) != NOTOK)
 323                 ct->c_umask = ~(st.st_mode & 0777);
 324             else
 325                 ct->c_umask = ~m_gmprot();
 326         }
 327     }
 328
 329     /*
 330      * List the message content
 331      */
 332     list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 333
 334     /* Now free all the structures for the content */
 335     for (ctp = cts; *ctp; ctp++)
 336         free_content (*ctp);
 337
 338     free ((char *) cts);
 339     cts = NULL;
 340
 341     /* If reading from a folder, do some updating */
 342     if (mp) {
 343         context_replace (pfolder, folder);/* update current folder  */
 344         seq_setcur (mp, mp->hghsel);      /* update current message */
 345         seq_save (mp);                    /* synchronize sequences  */
 346         context_save ();                  /* save the context file  */
 347     }
 348
 349     done (0);
 350     return 1;
 351 }
 352
 353
 354 static void
 355 pipeser (int i)
 356 {
 357     if (i == SIGQUIT) {
 358         fflush (stdout);
 359         fprintf (stderr, "\n");
 360         fflush (stderr);
 361     }
 362
 363     done (1);
 364     /* NOTREACHED */
 365 }