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

   1 /*
   2  * mhlist.c -- list the contents of MIME messages
   3  *
   4  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   5  * COPYRIGHT file in the root directory of the nmh distribution for
   6  * complete copyright information.
   7  */
   8
   9 #include <h/mh.h>
  10 #include <fcntl.h>
  11 #include <h/signals.h>
  12 #include <h/md5.h>
  13 #include <h/mts.h>
  14 #include <h/tws.h>
  15 #include <h/mime.h>
  16 #include <h/mhparse.h>
  17 #include <h/mhcachesbr.h>
  18 #include <h/utils.h>
  19
  20 #define MHLIST_SWITCHES \
  21     X("check", 0, CHECKSW) \
  22     X("nocheck", 0, NCHECKSW) \
  23     X("headers", 0, HEADSW) \
  24     X("noheaders", 0, NHEADSW) \
  25     X("realsize", 0, SIZESW) \
  26     X("norealsize", 0, NSIZESW) \
  27     X("verbose", 0, VERBSW) \
  28     X("noverbose", 0, NVERBSW) \
  29     X("disposition", 0, DISPOSW) \
  30     X("nodisposition", 0, NDISPOSW) \
  31     X("file file", 0, FILESW) \
  32     X("part number", 0, PARTSW) \
  33     X("type content", 0, TYPESW) \
  34     X("prefer content", 0, PREFERSW) \
  35     X("rcache policy", 0, RCACHESW) \
  36     X("wcache policy", 0, WCACHESW) \
  37     X("changecur", 0, CHGSW) \
  38     X("nochangecur", 0, NCHGSW) \
  39     X("version", 0, VERSIONSW) \
  40     X("help", 0, HELPSW) \
  41     X("debug", -5, DEBUGSW) \
  42
  43 #define X(sw, minchars, id) id,
  44 DEFINE_SWITCH_ENUM(MHLIST);
  45 #undef X
  46
  47 #define X(sw, minchars, id) { sw, minchars, id },
  48 DEFINE_SWITCH_ARRAY(MHLIST, switches);
  49 #undef X
  50
  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 /* mhparse.c */
  66 extern char *preferred_types[];
  67 extern  char *preferred_subtypes[];
  68 extern int npreferred;
  69
  70 /*
  71  * This is currently needed to keep mhparse happy.
  72  * This needs to be changed.
  73  */
  74 int debugsw = 0;
  75
  76 #define quitser pipeser
  77
  78 /* mhparse.c */
  79 CT parse_mime (char *);
  80
  81 /* mhmisc.c */
  82 int part_ok (CT);
  83 int type_ok (CT, int);
  84 void flush_errors (void);
  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, chgflag = 1, verbosw = 0, dispo = 0;
 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     if (nmh_init(argv[0], 1)) { return 1; }
 109
 110     done=freects_done;
 111
 112     arguments = getarguments (invo_name, argc, argv, 1);
 113     argp = arguments;
 114
 115     /*
 116      * Parse arguments
 117      */
 118     while ((cp = *argp++)) {
 119         if (*cp == '-') {
 120             switch (smatch (++cp, switches)) {
 121             case AMBIGSW:
 122                 ambigsw (cp, switches);
 123                 done (1);
 124             case UNKWNSW:
 125                 adios (NULL, "-%s unknown", cp);
 126
 127             case HELPSW:
 128                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 129                         invo_name);
 130                 print_help (buf, switches, 1);
 131                 done (0);
 132             case VERSIONSW:
 133                 print_version(invo_name);
 134                 done (0);
 135
 136             case RCACHESW:
 137                 icachesw = &rcachesw;
 138                 goto do_cache;
 139             case WCACHESW:
 140                 icachesw = &wcachesw;
 141 do_cache:
 142                 if (!(cp = *argp++) || *cp == '-')
 143                     adios (NULL, "missing argument to %s", argp[-2]);
 144                 switch (*icachesw = smatch (cp, caches)) {
 145                 case AMBIGSW:
 146                     ambigsw (cp, caches);
 147                     done (1);
 148                 case UNKWNSW:
 149                     adios (NULL, "%s unknown", cp);
 150                 default:
 151                     break;
 152                 }
 153                 continue;
 154
 155             case CHECKSW:
 156                 checksw++;
 157                 continue;
 158             case NCHECKSW:
 159                 checksw = 0;
 160                 continue;
 161
 162             case HEADSW:
 163                 headsw = 1;
 164                 continue;
 165             case NHEADSW:
 166                 headsw = 0;
 167                 continue;
 168
 169             case SIZESW:
 170                 sizesw = 1;
 171                 continue;
 172             case NSIZESW:
 173                 sizesw = 0;
 174                 continue;
 175
 176             case PARTSW:
 177                 if (!(cp = *argp++) || *cp == '-')
 178                     adios (NULL, "missing argument to %s", argp[-2]);
 179                 if (npart >= NPARTS)
 180                     adios (NULL, "too many parts (starting with %s), %d max",
 181                            cp, NPARTS);
 182                 parts[npart++] = cp;
 183                 continue;
 184
 185             case TYPESW:
 186                 if (!(cp = *argp++) || *cp == '-')
 187                     adios (NULL, "missing argument to %s", argp[-2]);
 188                 if (ntype >= NTYPES)
 189                     adios (NULL, "too many types (starting with %s), %d max",
 190                            cp, NTYPES);
 191                 types[ntype++] = cp;
 192                 continue;
 193
 194             case PREFERSW:
 195                 if (!(cp = *argp++) || *cp == '-')
 196                     adios (NULL, "missing argument to %s", argp[-2]);
 197                 if (npreferred >= NPREFS)
 198                     adios (NULL, "too many preferred types (starting with %s), %d max",
 199                            cp, NPREFS);
 200                 preferred_types[npreferred] = cp;
 201                 cp = strchr(cp, '/');
 202                 if (cp) *cp++ = '\0';
 203                 preferred_subtypes[npreferred++] = cp;
 204                 continue;
 205
 206             case FILESW:
 207                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 208                     adios (NULL, "missing argument to %s", argp[-2]);
 209                 file = *cp == '-' ? cp : path (cp, TFILE);
 210                 continue;
 211
 212             case CHGSW:
 213                 chgflag++;
 214                 continue;
 215             case NCHGSW:
 216                 chgflag = 0;
 217                 continue;
 218
 219             case VERBSW:
 220                 verbosw = 1;
 221                 continue;
 222             case NVERBSW:
 223                 verbosw = 0;
 224                 continue;
 225             case DISPOSW:
 226                 dispo = 1;
 227                 continue;
 228             case NDISPOSW:
 229                 dispo = 0;
 230                 continue;
 231             case DEBUGSW:
 232                 debugsw = 1;
 233                 continue;
 234             }
 235         }
 236         if (*cp == '+' || *cp == '@') {
 237             if (folder)
 238                 adios (NULL, "only one folder at a time!");
 239             else
 240                 folder = pluspath (cp);
 241         } else
 242                 app_msgarg(&msgs, cp);
 243     }
 244
 245     /* null terminate the list of acceptable parts/types */
 246     parts[npart] = NULL;
 247     types[ntype] = NULL;
 248
 249     /* Check for public cache location */
 250     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 251         cache_public = NULL;
 252
 253     /* Check for private cache location */
 254     if (!(cache_private = context_find (nmhprivcache)))
 255         cache_private = ".cache";
 256     cache_private = getcpy (m_maildir (cache_private));
 257
 258     if (!context_find ("path"))
 259         free (path ("./", TFOLDER));
 260
 261     if (file && msgs.size)
 262         adios (NULL, "cannot specify msg and file at same time!");
 263
 264     /*
 265      * check if message is coming from file
 266      */
 267     if (file) {
 268         cts = mh_xcalloc(2, sizeof *cts);
 269         ctp = cts;
 270
 271         if ((ct = parse_mime (file)))
 272             *ctp++ = ct;
 273     } else {
 274         /*
 275          * message(s) are coming from a folder
 276          */
 277         if (!msgs.size)
 278             app_msgarg(&msgs, "cur");
 279         if (!folder)
 280             folder = getfolder (1);
 281         maildir = m_maildir (folder);
 282
 283         if (chdir (maildir) == NOTOK)
 284             adios (maildir, "unable to change directory to");
 285
 286         /* read folder and create message structure */
 287         if (!(mp = folder_read (folder, 0)))
 288             adios (NULL, "unable to read folder %s", folder);
 289
 290         /* check for empty folder */
 291         if (mp->nummsg == 0)
 292             adios (NULL, "no messages in %s", folder);
 293
 294         /* parse all the message ranges/sequences and set SELECTED */
 295         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 296             if (!m_convert (mp, msgs.msgs[msgnum]))
 297                 done (1);
 298         seq_setprev (mp);       /* set the previous-sequence */
 299
 300         cts = mh_xcalloc(mp->numsel + 1, sizeof *cts);
 301         ctp = cts;
 302
 303         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 304             if (is_selected(mp, msgnum)) {
 305                 char *msgnam;
 306
 307                 msgnam = m_name (msgnum);
 308                 if ((ct = parse_mime (msgnam)))
 309                     *ctp++ = ct;
 310             }
 311         }
 312     }
 313
 314     if (!*cts)
 315         done (1);
 316
 317     userrs = 1;
 318     SIGNAL (SIGQUIT, quitser);
 319     SIGNAL (SIGPIPE, pipeser);
 320
 321     /*
 322      * Get the associated umask for the relevant contents.
 323      */
 324     for (ctp = cts; *ctp; ctp++) {
 325         struct stat st;
 326
 327         ct = *ctp;
 328         if (type_ok (ct, 1) && !ct->c_umask) {
 329             if (stat (ct->c_file, &st) != NOTOK)
 330                 ct->c_umask = ~(st.st_mode & 0777);
 331             else
 332                 ct->c_umask = ~m_gmprot();
 333         }
 334     }
 335
 336     /*
 337      * List the message content
 338      */
 339     list_all_messages (cts, headsw, sizesw, verbosw, debugsw, dispo);
 340
 341     /* Now free all the structures for the content */
 342     for (ctp = cts; *ctp; ctp++)
 343         free_content (*ctp);
 344
 345     free(cts);
 346     cts = NULL;
 347
 348     /* If reading from a folder, do some updating */
 349     if (mp) {
 350         context_replace (pfolder, folder);/* update current folder  */
 351         if (chgflag)
 352             seq_setcur (mp, mp->hghsel);  /* update current message */
 353         seq_save (mp);                    /* synchronize sequences  */
 354         context_save ();                  /* save the context file  */
 355     }
 356
 357     done (0);
 358     return 1;
 359 }
 360
 361
 362 static void
 363 pipeser (int i)
 364 {
 365     if (i == SIGQUIT) {
 366         fflush (stdout);
 367         fprintf (stderr, "\n");
 368         fflush (stderr);
 369     }
 370
 371     done (1);
 372     /* NOTREACHED */
 373 }