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 <signal.h>
  15 #include <h/mts.h>
  16 #include <h/tws.h>
  17 #include <h/mime.h>
  18 #include <h/mhparse.h>
  19 #include <h/mhcachesbr.h>
  20 #include <h/utils.h>
  21
  22 #define MHLIST_SWITCHES \
  23     X("check", 0, CHECKSW) \
  24     X("nocheck", 0, NCHECKSW) \
  25     X("headers", 0, HEADSW) \
  26     X("noheaders", 0, NHEADSW) \
  27     X("realsize", 0, SIZESW) \
  28     X("norealsize", 0, NSIZESW) \
  29     X("verbose", 0, VERBSW) \
  30     X("noverbose", 0, NVERBSW) \
  31     X("file file", 0, FILESW) \
  32     X("part number", 0, PARTSW) \
  33     X("type content", 0, TYPESW) \
  34     X("rcache policy", 0, RCACHESW) \
  35     X("wcache policy", 0, WCACHESW) \
  36     X("version", 0, VERSIONSW) \
  37     X("help", 0, HELPSW) \
  38     X("debug", -5, DEBUGSW) \
  39
  40 #define X(sw, minchars, id) id,
  41 DEFINE_SWITCH_ENUM(MHLIST);
  42 #undef X
  43
  44 #define X(sw, minchars, id) { sw, minchars, id },
  45 DEFINE_SWITCH_ARRAY(MHLIST, switches);
  46 #undef X
  47
  48
  49 /* mhparse.c */
  50 extern char *tmp;       /* directory to place temp files */
  51
  52 /* mhcachesbr.c */
  53 extern int rcachesw;
  54 extern int wcachesw;
  55 extern char *cache_public;
  56 extern char *cache_private;
  57
  58 /* mhmisc.c */
  59 extern int npart;
  60 extern int ntype;
  61 extern char *parts[NPARTS + 1];
  62 extern char *types[NTYPES + 1];
  63 extern int userrs;
  64
  65 /*
  66  * This is currently needed to keep mhparse happy.
  67  * This needs to be changed.
  68  */
  69 pid_t xpid  = 0;
  70
  71 int debugsw = 0;
  72 int verbosw = 0;
  73
  74 #define quitser pipeser
  75
  76 /* mhparse.c */
  77 CT parse_mime (char *);
  78
  79 /* mhmisc.c */
  80 int part_ok (CT, int);
  81 int type_ok (CT, int);
  82 void flush_errors (void);
  83
  84 /* mhlistsbr.c */
  85 void list_all_messages (CT *, int, int, int, int);
  86
  87 /* mhfree.c */
  88 extern CT *cts;
  89 void freects_done (int) NORETURN;
  90
  91 /*
  92  * static prototypes
  93  */
  94 static void pipeser (int);
  95
  96
  97 int
  98 main (int argc, char **argv)
  99 {
 100     int sizesw = 1, headsw = 1;
 101     int msgnum, *icachesw;
 102     char *cp, *file = NULL, *folder = NULL;
 103     char *maildir, buf[100], **argp;
 104     char **arguments;
 105     struct msgs_array msgs = { 0, 0, NULL };
 106     struct msgs *mp = NULL;
 107     CT ct, *ctp;
 108
 109     done=freects_done;
 110
 111 #ifdef LOCALE
 112     setlocale(LC_ALL, "");
 113 #endif
 114     invo_name = r1bindex (argv[0], '/');
 115
 116     /* read user profile/context */
 117     context_read();
 118
 119     arguments = getarguments (invo_name, argc, argv, 1);
 120     argp = arguments;
 121
 122     /*
 123      * Parse arguments
 124      */
 125     while ((cp = *argp++)) {
 126         if (*cp == '-') {
 127             switch (smatch (++cp, switches)) {
 128             case AMBIGSW:
 129                 ambigsw (cp, switches);
 130                 done (1);
 131             case UNKWNSW:
 132                 adios (NULL, "-%s unknown", cp);
 133
 134             case HELPSW:
 135                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 136                         invo_name);
 137                 print_help (buf, switches, 1);
 138                 done (0);
 139             case VERSIONSW:
 140                 print_version(invo_name);
 141                 done (0);
 142
 143             case RCACHESW:
 144                 icachesw = &rcachesw;
 145                 goto do_cache;
 146             case WCACHESW:
 147                 icachesw = &wcachesw;
 148 do_cache:
 149                 if (!(cp = *argp++) || *cp == '-')
 150                     adios (NULL, "missing argument to %s", argp[-2]);
 151                 switch (*icachesw = smatch (cp, caches)) {
 152                 case AMBIGSW:
 153                     ambigsw (cp, caches);
 154                     done (1);
 155                 case UNKWNSW:
 156                     adios (NULL, "%s unknown", cp);
 157                 default:
 158                     break;
 159                 }
 160                 continue;
 161
 162             case CHECKSW:
 163                 checksw++;
 164                 continue;
 165             case NCHECKSW:
 166                 checksw = 0;
 167                 continue;
 168
 169             case HEADSW:
 170                 headsw = 1;
 171                 continue;
 172             case NHEADSW:
 173                 headsw = 0;
 174                 continue;
 175
 176             case SIZESW:
 177                 sizesw = 1;
 178                 continue;
 179             case NSIZESW:
 180                 sizesw = 0;
 181                 continue;
 182
 183             case PARTSW:
 184                 if (!(cp = *argp++) || *cp == '-')
 185                     adios (NULL, "missing argument to %s", argp[-2]);
 186                 if (npart >= NPARTS)
 187                     adios (NULL, "too many parts (starting with %s), %d max",
 188                            cp, NPARTS);
 189                 parts[npart++] = cp;
 190                 continue;
 191
 192             case TYPESW:
 193                 if (!(cp = *argp++) || *cp == '-')
 194                     adios (NULL, "missing argument to %s", argp[-2]);
 195                 if (ntype >= NTYPES)
 196                     adios (NULL, "too many types (starting with %s), %d max",
 197                            cp, NTYPES);
 198                 types[ntype++] = cp;
 199                 continue;
 200
 201             case FILESW:
 202                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 203                     adios (NULL, "missing argument to %s", argp[-2]);
 204                 file = *cp == '-' ? cp : path (cp, TFILE);
 205                 continue;
 206
 207             case VERBSW:
 208                 verbosw = 1;
 209                 continue;
 210             case NVERBSW:
 211                 verbosw = 0;
 212                 continue;
 213             case DEBUGSW:
 214                 debugsw = 1;
 215                 continue;
 216             }
 217         }
 218         if (*cp == '+' || *cp == '@') {
 219             if (folder)
 220                 adios (NULL, "only one folder at a time!");
 221             else
 222                 folder = pluspath (cp);
 223         } else
 224                 app_msgarg(&msgs, cp);
 225     }
 226
 227     /* null terminate the list of acceptable parts/types */
 228     parts[npart] = NULL;
 229     types[ntype] = NULL;
 230
 231     /* Check for public cache location */
 232     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 233         cache_public = NULL;
 234
 235     /* Check for private cache location */
 236     if (!(cache_private = context_find (nmhprivcache)))
 237         cache_private = ".cache";
 238     cache_private = getcpy (m_maildir (cache_private));
 239
 240     /*
 241      * Check for storage directory.  If specified,
 242      * then store temporary files there.  Else we
 243      * store them in standard nmh directory.
 244      */
 245     if ((cp = context_find (nmhstorage)) && *cp)
 246         tmp = concat (cp, "/", invo_name, NULL);
 247     else
 248         tmp = add (m_maildir (invo_name), NULL);
 249
 250     if (!context_find ("path"))
 251         free (path ("./", TFOLDER));
 252
 253     if (file && msgs.size)
 254         adios (NULL, "cannot specify msg and file at same time!");
 255
 256     /*
 257      * check if message is coming from file
 258      */
 259     if (file) {
 260         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 261             adios (NULL, "out of memory");
 262         ctp = cts;
 263
 264         if ((ct = parse_mime (file)))
 265             *ctp++ = ct;
 266     } else {
 267         /*
 268          * message(s) are coming from a folder
 269          */
 270         if (!msgs.size)
 271             app_msgarg(&msgs, "cur");
 272         if (!folder)
 273             folder = getfolder (1);
 274         maildir = m_maildir (folder);
 275
 276         if (chdir (maildir) == NOTOK)
 277             adios (maildir, "unable to change directory to");
 278
 279         /* read folder and create message structure */
 280         if (!(mp = folder_read (folder, 0)))
 281             adios (NULL, "unable to read folder %s", folder);
 282
 283         /* check for empty folder */
 284         if (mp->nummsg == 0)
 285             adios (NULL, "no messages in %s", folder);
 286
 287         /* parse all the message ranges/sequences and set SELECTED */
 288         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 289             if (!m_convert (mp, msgs.msgs[msgnum]))
 290                 done (1);
 291         seq_setprev (mp);       /* set the previous-sequence */
 292
 293         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 294             adios (NULL, "out of memory");
 295         ctp = cts;
 296
 297         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 298             if (is_selected(mp, msgnum)) {
 299                 char *msgnam;
 300
 301                 msgnam = m_name (msgnum);
 302                 if ((ct = parse_mime (msgnam)))
 303                     *ctp++ = ct;
 304             }
 305         }
 306     }
 307
 308     if (!*cts)
 309         done (1);
 310
 311     userrs = 1;
 312     SIGNAL (SIGQUIT, quitser);
 313     SIGNAL (SIGPIPE, pipeser);
 314
 315     /*
 316      * Get the associated umask for the relevant contents.
 317      */
 318     for (ctp = cts; *ctp; ctp++) {
 319         struct stat st;
 320
 321         ct = *ctp;
 322         if (type_ok (ct, 1) && !ct->c_umask) {
 323             if (stat (ct->c_file, &st) != NOTOK)
 324                 ct->c_umask = ~(st.st_mode & 0777);
 325             else
 326                 ct->c_umask = ~m_gmprot();
 327         }
 328     }
 329
 330     /*
 331      * List the message content
 332      */
 333     list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 334
 335     /* Now free all the structures for the content */
 336     for (ctp = cts; *ctp; ctp++)
 337         free_content (*ctp);
 338
 339     free ((char *) cts);
 340     cts = NULL;
 341
 342     /* If reading from a folder, do some updating */
 343     if (mp) {
 344         context_replace (pfolder, folder);/* update current folder  */
 345         seq_setcur (mp, mp->hghsel);      /* update current message */
 346         seq_save (mp);                    /* synchronize sequences  */
 347         context_save ();                  /* save the context file  */
 348     }
 349
 350     done (0);
 351     return 1;
 352 }
 353
 354
 355 static void
 356 pipeser (int i)
 357 {
 358     if (i == SIGQUIT) {
 359         fflush (stdout);
 360         fprintf (stderr, "\n");
 361         fflush (stderr);
 362     }
 363
 364     done (1);
 365     /* NOTREACHED */
 366 }