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

   1 /* mhlist.c -- list the contents of MIME messages
   2  *
   3  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include <h/mh.h>
   9 #include <fcntl.h>
  10 #include <h/signals.h>
  11 #include <h/md5.h>
  12 #include <h/mts.h>
  13 #include <h/tws.h>
  14 #include <h/mime.h>
  15 #include <h/mhparse.h>
  16 #include <h/mhcachesbr.h>
  17 #include <h/utils.h>
  18
  19 #define MHLIST_SWITCHES \
  20     X("check", 0, CHECKSW) \
  21     X("nocheck", 0, NCHECKSW) \
  22     X("headers", 0, HEADSW) \
  23     X("noheaders", 0, NHEADSW) \
  24     X("realsize", 0, SIZESW) \
  25     X("norealsize", 0, NSIZESW) \
  26     X("verbose", 0, VERBSW) \
  27     X("noverbose", 0, NVERBSW) \
  28     X("disposition", 0, DISPOSW) \
  29     X("nodisposition", 0, NDISPOSW) \
  30     X("file file", 0, FILESW) \
  31     X("part number", 0, PARTSW) \
  32     X("type content", 0, TYPESW) \
  33     X("prefer content", 0, PREFERSW) \
  34     X("rcache policy", 0, RCACHESW) \
  35     X("wcache policy", 0, WCACHESW) \
  36     X("changecur", 0, CHGSW) \
  37     X("nochangecur", 0, NCHGSW) \
  38     X("version", 0, VERSIONSW) \
  39     X("help", 0, HELPSW) \
  40     X("debug", -5, DEBUGSW) \
  41
  42 #define X(sw, minchars, id) id,
  43 DEFINE_SWITCH_ENUM(MHLIST);
  44 #undef X
  45
  46 #define X(sw, minchars, id) { sw, minchars, id },
  47 DEFINE_SWITCH_ARRAY(MHLIST, switches);
  48 #undef X
  49
  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 /* mhparse.c */
  65 extern char *preferred_types[];
  66 extern  char *preferred_subtypes[];
  67 extern int npreferred;
  68
  69 /*
  70  * This is currently needed to keep mhparse happy.
  71  * This needs to be changed.
  72  */
  73 int debugsw = 0;
  74
  75 #define quitser pipeser
  76
  77 /* mhparse.c */
  78 CT parse_mime (char *);
  79
  80 /* mhmisc.c */
  81 int part_ok (CT);
  82 int type_ok (CT, int);
  83 void flush_errors (void);
  84
  85 /* mhfree.c */
  86 extern CT *cts;
  87 void freects_done (int) NORETURN;
  88
  89 /*
  90  * static prototypes
  91  */
  92 static void pipeser (int);
  93
  94
  95 int
  96 main (int argc, char **argv)
  97 {
  98     int sizesw = 1, headsw = 1, chgflag = 1, verbosw = 0, dispo = 0;
  99     int msgnum, *icachesw;
 100     char *cp, *file = NULL, *folder = NULL;
 101     char *maildir, buf[100], **argp;
 102     char **arguments;
 103     struct msgs_array msgs = { 0, 0, NULL };
 104     struct msgs *mp = NULL;
 105     CT ct, *ctp;
 106
 107     if (nmh_init(argv[0], 1)) { return 1; }
 108
 109     done=freects_done;
 110
 111     arguments = getarguments (invo_name, argc, argv, 1);
 112     argp = arguments;
 113
 114     /*
 115      * Parse arguments
 116      */
 117     while ((cp = *argp++)) {
 118         if (*cp == '-') {
 119             switch (smatch (++cp, switches)) {
 120             case AMBIGSW:
 121                 ambigsw (cp, switches);
 122                 done (1);
 123             case UNKWNSW:
 124                 adios (NULL, "-%s unknown", cp);
 125
 126             case HELPSW:
 127                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 128                         invo_name);
 129                 print_help (buf, switches, 1);
 130                 done (0);
 131             case VERSIONSW:
 132                 print_version(invo_name);
 133                 done (0);
 134
 135             case RCACHESW:
 136                 icachesw = &rcachesw;
 137                 goto do_cache;
 138             case WCACHESW:
 139                 icachesw = &wcachesw;
 140 do_cache:
 141                 if (!(cp = *argp++) || *cp == '-')
 142                     adios (NULL, "missing argument to %s", argp[-2]);
 143                 switch (*icachesw = smatch (cp, caches)) {
 144                 case AMBIGSW:
 145                     ambigsw (cp, caches);
 146                     done (1);
 147                 case UNKWNSW:
 148                     adios (NULL, "%s unknown", cp);
 149                 default:
 150                     break;
 151                 }
 152                 continue;
 153
 154             case CHECKSW:
 155                 checksw++;
 156                 continue;
 157             case NCHECKSW:
 158                 checksw = 0;
 159                 continue;
 160
 161             case HEADSW:
 162                 headsw = 1;
 163                 continue;
 164             case NHEADSW:
 165                 headsw = 0;
 166                 continue;
 167
 168             case SIZESW:
 169                 sizesw = 1;
 170                 continue;
 171             case NSIZESW:
 172                 sizesw = 0;
 173                 continue;
 174
 175             case PARTSW:
 176                 if (!(cp = *argp++) || *cp == '-')
 177                     adios (NULL, "missing argument to %s", argp[-2]);
 178                 if (npart >= NPARTS)
 179                     adios (NULL, "too many parts (starting with %s), %d max",
 180                            cp, NPARTS);
 181                 parts[npart++] = cp;
 182                 continue;
 183
 184             case TYPESW:
 185                 if (!(cp = *argp++) || *cp == '-')
 186                     adios (NULL, "missing argument to %s", argp[-2]);
 187                 if (ntype >= NTYPES)
 188                     adios (NULL, "too many types (starting with %s), %d max",
 189                            cp, NTYPES);
 190                 types[ntype++] = cp;
 191                 continue;
 192
 193             case PREFERSW:
 194                 if (!(cp = *argp++) || *cp == '-')
 195                     adios (NULL, "missing argument to %s", argp[-2]);
 196                 if (npreferred >= NPREFS)
 197                     adios (NULL, "too many preferred types (starting with %s), %d max",
 198                            cp, NPREFS);
 199                 preferred_types[npreferred] = cp;
 200                 cp = strchr(cp, '/');
 201                 if (cp) *cp++ = '\0';
 202                 preferred_subtypes[npreferred++] = cp;
 203                 continue;
 204
 205             case FILESW:
 206                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 207                     adios (NULL, "missing argument to %s", argp[-2]);
 208                 file = *cp == '-' ? cp : path (cp, TFILE);
 209                 continue;
 210
 211             case CHGSW:
 212                 chgflag++;
 213                 continue;
 214             case NCHGSW:
 215                 chgflag = 0;
 216                 continue;
 217
 218             case VERBSW:
 219                 verbosw = 1;
 220                 continue;
 221             case NVERBSW:
 222                 verbosw = 0;
 223                 continue;
 224             case DISPOSW:
 225                 dispo = 1;
 226                 continue;
 227             case NDISPOSW:
 228                 dispo = 0;
 229                 continue;
 230             case DEBUGSW:
 231                 debugsw = 1;
 232                 continue;
 233             }
 234         }
 235         if (*cp == '+' || *cp == '@') {
 236             if (folder)
 237                 adios (NULL, "only one folder at a time!");
 238             else
 239                 folder = pluspath (cp);
 240         } else
 241                 app_msgarg(&msgs, cp);
 242     }
 243
 244     /* null terminate the list of acceptable parts/types */
 245     parts[npart] = NULL;
 246     types[ntype] = NULL;
 247
 248     /* Check for public cache location */
 249     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 250         cache_public = NULL;
 251
 252     /* Check for private cache location */
 253     if (!(cache_private = context_find (nmhprivcache)))
 254         cache_private = ".cache";
 255     cache_private = getcpy (m_maildir (cache_private));
 256
 257     if (!context_find ("path"))
 258         free (path ("./", TFOLDER));
 259
 260     if (file && msgs.size)
 261         adios (NULL, "cannot specify msg and file at same time!");
 262
 263     /*
 264      * check if message is coming from file
 265      */
 266     if (file) {
 267         cts = mh_xcalloc(2, sizeof *cts);
 268         ctp = cts;
 269
 270         if ((ct = parse_mime (file)))
 271             *ctp++ = ct;
 272     } else {
 273         /*
 274          * message(s) are coming from a folder
 275          */
 276         if (!msgs.size)
 277             app_msgarg(&msgs, "cur");
 278         if (!folder)
 279             folder = getfolder (1);
 280         maildir = m_maildir (folder);
 281
 282         if (chdir (maildir) == NOTOK)
 283             adios (maildir, "unable to change directory to");
 284
 285         /* read folder and create message structure */
 286         if (!(mp = folder_read (folder, 0)))
 287             adios (NULL, "unable to read folder %s", folder);
 288
 289         /* check for empty folder */
 290         if (mp->nummsg == 0)
 291             adios (NULL, "no messages in %s", folder);
 292
 293         /* parse all the message ranges/sequences and set SELECTED */
 294         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 295             if (!m_convert (mp, msgs.msgs[msgnum]))
 296                 done (1);
 297         seq_setprev (mp);       /* set the previous-sequence */
 298
 299         cts = mh_xcalloc(mp->numsel + 1, sizeof *cts);
 300         ctp = cts;
 301
 302         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 303             if (is_selected(mp, msgnum)) {
 304                 char *msgnam;
 305
 306                 msgnam = m_name (msgnum);
 307                 if ((ct = parse_mime (msgnam)))
 308                     *ctp++ = ct;
 309             }
 310         }
 311     }
 312
 313     if (!*cts)
 314         done (1);
 315
 316     userrs = 1;
 317     SIGNAL (SIGQUIT, quitser);
 318     SIGNAL (SIGPIPE, pipeser);
 319
 320     /*
 321      * Get the associated umask for the relevant contents.
 322      */
 323     for (ctp = cts; *ctp; ctp++) {
 324         struct stat st;
 325
 326         ct = *ctp;
 327         if (type_ok (ct, 1) && !ct->c_umask) {
 328             if (stat (ct->c_file, &st) != NOTOK)
 329                 ct->c_umask = ~(st.st_mode & 0777);
 330             else
 331                 ct->c_umask = ~m_gmprot();
 332         }
 333     }
 334
 335     /*
 336      * List the message content
 337      */
 338     list_all_messages (cts, headsw, sizesw, verbosw, debugsw, dispo);
 339
 340     /* Now free all the structures for the content */
 341     for (ctp = cts; *ctp; ctp++)
 342         free_content (*ctp);
 343
 344     free(cts);
 345     cts = NULL;
 346
 347     /* If reading from a folder, do some updating */
 348     if (mp) {
 349         context_replace (pfolder, folder);/* update current folder  */
 350         if (chgflag)
 351             seq_setcur (mp, mp->hghsel);  /* update current message */
 352         seq_save (mp);                    /* synchronize sequences  */
 353         context_save ();                  /* save the context file  */
 354     }
 355
 356     done (0);
 357     return 1;
 358 }
 359
 360
 361 static void
 362 pipeser (int i)
 363 {
 364     if (i == SIGQUIT) {
 365         fflush (stdout);
 366         fprintf (stderr, "\n");
 367         fflush (stderr);
 368     }
 369
 370     done (1);
 371     /* NOTREACHED */
 372 }