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("disposition", 0, DISPOSW) \
  31     X("nodisposition", 0, NDISPOSW) \
  32     X("file file", 0, FILESW) \
  33     X("part number", 0, PARTSW) \
  34     X("type content", 0, TYPESW) \
  35     X("prefer content", 0, PREFERSW) \
  36     X("rcache policy", 0, RCACHESW) \
  37     X("wcache policy", 0, WCACHESW) \
  38     X("changecur", 0, CHGSW) \
  39     X("nochangecur", 0, NCHGSW) \
  40     X("version", 0, VERSIONSW) \
  41     X("help", 0, HELPSW) \
  42     X("debug", -5, DEBUGSW) \
  43
  44 #define X(sw, minchars, id) id,
  45 DEFINE_SWITCH_ENUM(MHLIST);
  46 #undef X
  47
  48 #define X(sw, minchars, id) { sw, minchars, id },
  49 DEFINE_SWITCH_ARRAY(MHLIST, switches);
  50 #undef X
  51
  52
  53 /* mhcachesbr.c */
  54 extern int rcachesw;
  55 extern int wcachesw;
  56 extern char *cache_public;
  57 extern char *cache_private;
  58
  59 /* mhmisc.c */
  60 extern int npart;
  61 extern int ntype;
  62 extern char *parts[NPARTS + 1];
  63 extern char *types[NTYPES + 1];
  64 extern int userrs;
  65
  66 /* mhparse.c */
  67 extern char *preferred_types[];
  68 extern  char *preferred_subtypes[];
  69 extern int npreferred;
  70
  71 /*
  72  * This is currently needed to keep mhparse happy.
  73  * This needs to be changed.
  74  */
  75 int debugsw = 0;
  76
  77 #define quitser pipeser
  78
  79 /* mhparse.c */
  80 CT parse_mime (char *);
  81
  82 /* mhmisc.c */
  83 int part_ok (CT);
  84 int type_ok (CT, int);
  85 void flush_errors (void);
  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, chgflag = 1, verbosw = 0, dispo = 0;
 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     if (nmh_init(argv[0], 1)) { return 1; }
 110
 111     done=freects_done;
 112
 113     arguments = getarguments (invo_name, argc, argv, 1);
 114     argp = arguments;
 115
 116     /*
 117      * Parse arguments
 118      */
 119     while ((cp = *argp++)) {
 120         if (*cp == '-') {
 121             switch (smatch (++cp, switches)) {
 122             case AMBIGSW:
 123                 ambigsw (cp, switches);
 124                 done (1);
 125             case UNKWNSW:
 126                 adios (NULL, "-%s unknown", cp);
 127
 128             case HELPSW:
 129                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 130                         invo_name);
 131                 print_help (buf, switches, 1);
 132                 done (0);
 133             case VERSIONSW:
 134                 print_version(invo_name);
 135                 done (0);
 136
 137             case RCACHESW:
 138                 icachesw = &rcachesw;
 139                 goto do_cache;
 140             case WCACHESW:
 141                 icachesw = &wcachesw;
 142 do_cache:
 143                 if (!(cp = *argp++) || *cp == '-')
 144                     adios (NULL, "missing argument to %s", argp[-2]);
 145                 switch (*icachesw = smatch (cp, caches)) {
 146                 case AMBIGSW:
 147                     ambigsw (cp, caches);
 148                     done (1);
 149                 case UNKWNSW:
 150                     adios (NULL, "%s unknown", cp);
 151                 default:
 152                     break;
 153                 }
 154                 continue;
 155
 156             case CHECKSW:
 157                 checksw++;
 158                 continue;
 159             case NCHECKSW:
 160                 checksw = 0;
 161                 continue;
 162
 163             case HEADSW:
 164                 headsw = 1;
 165                 continue;
 166             case NHEADSW:
 167                 headsw = 0;
 168                 continue;
 169
 170             case SIZESW:
 171                 sizesw = 1;
 172                 continue;
 173             case NSIZESW:
 174                 sizesw = 0;
 175                 continue;
 176
 177             case PARTSW:
 178                 if (!(cp = *argp++) || *cp == '-')
 179                     adios (NULL, "missing argument to %s", argp[-2]);
 180                 if (npart >= NPARTS)
 181                     adios (NULL, "too many parts (starting with %s), %d max",
 182                            cp, NPARTS);
 183                 parts[npart++] = cp;
 184                 continue;
 185
 186             case TYPESW:
 187                 if (!(cp = *argp++) || *cp == '-')
 188                     adios (NULL, "missing argument to %s", argp[-2]);
 189                 if (ntype >= NTYPES)
 190                     adios (NULL, "too many types (starting with %s), %d max",
 191                            cp, NTYPES);
 192                 types[ntype++] = cp;
 193                 continue;
 194
 195             case PREFERSW:
 196                 if (!(cp = *argp++) || *cp == '-')
 197                     adios (NULL, "missing argument to %s", argp[-2]);
 198                 if (npreferred >= NPREFS)
 199                     adios (NULL, "too many preferred types (starting with %s), %d max",
 200                            cp, NPREFS);
 201                 preferred_types[npreferred] = cp;
 202                 cp = strchr(cp, '/');
 203                 if (cp) *cp++ = '\0';
 204                 preferred_subtypes[npreferred++] = cp;
 205                 continue;
 206
 207             case FILESW:
 208                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 209                     adios (NULL, "missing argument to %s", argp[-2]);
 210                 file = *cp == '-' ? cp : path (cp, TFILE);
 211                 continue;
 212
 213             case CHGSW:
 214                 chgflag++;
 215                 continue;
 216             case NCHGSW:
 217                 chgflag = 0;
 218                 continue;
 219
 220             case VERBSW:
 221                 verbosw = 1;
 222                 continue;
 223             case NVERBSW:
 224                 verbosw = 0;
 225                 continue;
 226             case DISPOSW:
 227                 dispo = 1;
 228                 continue;
 229             case NDISPOSW:
 230                 dispo = 0;
 231                 continue;
 232             case DEBUGSW:
 233                 debugsw = 1;
 234                 continue;
 235             }
 236         }
 237         if (*cp == '+' || *cp == '@') {
 238             if (folder)
 239                 adios (NULL, "only one folder at a time!");
 240             else
 241                 folder = pluspath (cp);
 242         } else
 243                 app_msgarg(&msgs, cp);
 244     }
 245
 246     /* null terminate the list of acceptable parts/types */
 247     parts[npart] = NULL;
 248     types[ntype] = NULL;
 249
 250     /* Check for public cache location */
 251     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 252         cache_public = NULL;
 253
 254     /* Check for private cache location */
 255     if (!(cache_private = context_find (nmhprivcache)))
 256         cache_private = ".cache";
 257     cache_private = getcpy (m_maildir (cache_private));
 258
 259     if (!context_find ("path"))
 260         free (path ("./", TFOLDER));
 261
 262     if (file && msgs.size)
 263         adios (NULL, "cannot specify msg and file at same time!");
 264
 265     /*
 266      * check if message is coming from file
 267      */
 268     if (file) {
 269         cts = mh_xcalloc(2, sizeof *cts);
 270         ctp = cts;
 271
 272         if ((ct = parse_mime (file)))
 273             *ctp++ = ct;
 274     } else {
 275         /*
 276          * message(s) are coming from a folder
 277          */
 278         if (!msgs.size)
 279             app_msgarg(&msgs, "cur");
 280         if (!folder)
 281             folder = getfolder (1);
 282         maildir = m_maildir (folder);
 283
 284         if (chdir (maildir) == NOTOK)
 285             adios (maildir, "unable to change directory to");
 286
 287         /* read folder and create message structure */
 288         if (!(mp = folder_read (folder, 0)))
 289             adios (NULL, "unable to read folder %s", folder);
 290
 291         /* check for empty folder */
 292         if (mp->nummsg == 0)
 293             adios (NULL, "no messages in %s", folder);
 294
 295         /* parse all the message ranges/sequences and set SELECTED */
 296         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 297             if (!m_convert (mp, msgs.msgs[msgnum]))
 298                 done (1);
 299         seq_setprev (mp);       /* set the previous-sequence */
 300
 301         cts = mh_xcalloc(mp->numsel + 1, sizeof *cts);
 302         ctp = cts;
 303
 304         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 305             if (is_selected(mp, msgnum)) {
 306                 char *msgnam;
 307
 308                 msgnam = m_name (msgnum);
 309                 if ((ct = parse_mime (msgnam)))
 310                     *ctp++ = ct;
 311             }
 312         }
 313     }
 314
 315     if (!*cts)
 316         done (1);
 317
 318     userrs = 1;
 319     SIGNAL (SIGQUIT, quitser);
 320     SIGNAL (SIGPIPE, pipeser);
 321
 322     /*
 323      * Get the associated umask for the relevant contents.
 324      */
 325     for (ctp = cts; *ctp; ctp++) {
 326         struct stat st;
 327
 328         ct = *ctp;
 329         if (type_ok (ct, 1) && !ct->c_umask) {
 330             if (stat (ct->c_file, &st) != NOTOK)
 331                 ct->c_umask = ~(st.st_mode & 0777);
 332             else
 333                 ct->c_umask = ~m_gmprot();
 334         }
 335     }
 336
 337     /*
 338      * List the message content
 339      */
 340     list_all_messages (cts, headsw, sizesw, verbosw, debugsw, dispo);
 341
 342     /* Now free all the structures for the content */
 343     for (ctp = cts; *ctp; ctp++)
 344         free_content (*ctp);
 345
 346     free(cts);
 347     cts = NULL;
 348
 349     /* If reading from a folder, do some updating */
 350     if (mp) {
 351         context_replace (pfolder, folder);/* update current folder  */
 352         if (chgflag)
 353             seq_setcur (mp, mp->hghsel);  /* update current message */
 354         seq_save (mp);                    /* synchronize sequences  */
 355         context_save ();                  /* save the context file  */
 356     }
 357
 358     done (0);
 359     return 1;
 360 }
 361
 362
 363 static void
 364 pipeser (int i)
 365 {
 366     if (i == SIGQUIT) {
 367         fflush (stdout);
 368         fprintf (stderr, "\n");
 369         fflush (stderr);
 370     }
 371
 372     done (1);
 373     /* NOTREACHED */
 374 }