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 <errno.h>
  15 #include <signal.h>
  16 #include <h/mts.h>
  17 #include <h/tws.h>
  18 #include <h/mime.h>
  19 #include <h/mhparse.h>
  20 #include <h/mhcachesbr.h>
  21 #include <h/utils.h>
  22
  23 #define MHLIST_SWITCHES \
  24     X("check", 0, CHECKSW) \
  25     X("nocheck", 0, NCHECKSW) \
  26     X("headers", 0, HEADSW) \
  27     X("noheaders", 0, NHEADSW) \
  28     X("realsize", 0, SIZESW) \
  29     X("norealsize", 0, NSIZESW) \
  30     X("verbose", 0, VERBSW) \
  31     X("noverbose", 0, NVERBSW) \
  32     X("file file", 0, FILESW) \
  33     X("part number", 0, PARTSW) \
  34     X("type content", 0, TYPESW) \
  35     X("rcache policy", 0, RCACHESW) \
  36     X("wcache policy", 0, WCACHESW) \
  37     X("version", 0, VERSIONSW) \
  38     X("help", 0, HELPSW) \
  39     X("debug", -5, DEBUGSW) \
  40
  41 #define X(sw, minchars, id) id,
  42 DEFINE_SWITCH_ENUM(MHLIST);
  43 #undef X
  44
  45 #define X(sw, minchars, id) { sw, minchars, id },
  46 DEFINE_SWITCH_ARRAY(MHLIST, switches);
  47 #undef X
  48
  49
  50 /* mhparse.c */
  51 extern char *tmp;       /* directory to place temp files */
  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 /*
  67  * This is currently needed to keep mhparse happy.
  68  * This needs to be changed.
  69  */
  70 pid_t xpid  = 0;
  71
  72 int debugsw = 0;
  73 int verbosw = 0;
  74
  75 #define quitser pipeser
  76
  77 /* mhparse.c */
  78 CT parse_mime (char *);
  79
  80 /* mhmisc.c */
  81 int part_ok (CT, int);
  82 int type_ok (CT, int);
  83 void flush_errors (void);
  84
  85 /* mhlistsbr.c */
  86 void list_all_messages (CT *, int, int, int, int);
  87
  88 /* mhfree.c */
  89 void free_content (CT);
  90 extern CT *cts;
  91 void freects_done (int) NORETURN;
  92
  93 /*
  94  * static prototypes
  95  */
  96 static void pipeser (int);
  97
  98
  99 int
 100 main (int argc, char **argv)
 101 {
 102     int sizesw = 1, headsw = 1;
 103     int msgnum, *icachesw;
 104     char *cp, *file = NULL, *folder = NULL;
 105     char *maildir, buf[100], **argp;
 106     char **arguments;
 107     struct msgs_array msgs = { 0, 0, NULL };
 108     struct msgs *mp = NULL;
 109     CT ct, *ctp;
 110
 111     done=freects_done;
 112
 113 #ifdef LOCALE
 114     setlocale(LC_ALL, "");
 115 #endif
 116     invo_name = r1bindex (argv[0], '/');
 117
 118     /* read user profile/context */
 119     context_read();
 120
 121     arguments = getarguments (invo_name, argc, argv, 1);
 122     argp = arguments;
 123
 124     /*
 125      * Parse arguments
 126      */
 127     while ((cp = *argp++)) {
 128         if (*cp == '-') {
 129             switch (smatch (++cp, switches)) {
 130             case AMBIGSW:
 131                 ambigsw (cp, switches);
 132                 done (1);
 133             case UNKWNSW:
 134                 adios (NULL, "-%s unknown", cp);
 135
 136             case HELPSW:
 137                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 138                         invo_name);
 139                 print_help (buf, switches, 1);
 140                 done (0);
 141             case VERSIONSW:
 142                 print_version(invo_name);
 143                 done (0);
 144
 145             case RCACHESW:
 146                 icachesw = &rcachesw;
 147                 goto do_cache;
 148             case WCACHESW:
 149                 icachesw = &wcachesw;
 150 do_cache:
 151                 if (!(cp = *argp++) || *cp == '-')
 152                     adios (NULL, "missing argument to %s", argp[-2]);
 153                 switch (*icachesw = smatch (cp, caches)) {
 154                 case AMBIGSW:
 155                     ambigsw (cp, caches);
 156                     done (1);
 157                 case UNKWNSW:
 158                     adios (NULL, "%s unknown", cp);
 159                 default:
 160                     break;
 161                 }
 162                 continue;
 163
 164             case CHECKSW:
 165                 checksw++;
 166                 continue;
 167             case NCHECKSW:
 168                 checksw = 0;
 169                 continue;
 170
 171             case HEADSW:
 172                 headsw = 1;
 173                 continue;
 174             case NHEADSW:
 175                 headsw = 0;
 176                 continue;
 177
 178             case SIZESW:
 179                 sizesw = 1;
 180                 continue;
 181             case NSIZESW:
 182                 sizesw = 0;
 183                 continue;
 184
 185             case PARTSW:
 186                 if (!(cp = *argp++) || *cp == '-')
 187                     adios (NULL, "missing argument to %s", argp[-2]);
 188                 if (npart >= NPARTS)
 189                     adios (NULL, "too many parts (starting with %s), %d max",
 190                            cp, NPARTS);
 191                 parts[npart++] = cp;
 192                 continue;
 193
 194             case TYPESW:
 195                 if (!(cp = *argp++) || *cp == '-')
 196                     adios (NULL, "missing argument to %s", argp[-2]);
 197                 if (ntype >= NTYPES)
 198                     adios (NULL, "too many types (starting with %s), %d max",
 199                            cp, NTYPES);
 200                 types[ntype++] = cp;
 201                 continue;
 202
 203             case FILESW:
 204                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 205                     adios (NULL, "missing argument to %s", argp[-2]);
 206                 file = *cp == '-' ? cp : path (cp, TFILE);
 207                 continue;
 208
 209             case VERBSW:
 210                 verbosw = 1;
 211                 continue;
 212             case NVERBSW:
 213                 verbosw = 0;
 214                 continue;
 215             case DEBUGSW:
 216                 debugsw = 1;
 217                 continue;
 218             }
 219         }
 220         if (*cp == '+' || *cp == '@') {
 221             if (folder)
 222                 adios (NULL, "only one folder at a time!");
 223             else
 224                 folder = pluspath (cp);
 225         } else
 226                 app_msgarg(&msgs, cp);
 227     }
 228
 229     /* null terminate the list of acceptable parts/types */
 230     parts[npart] = NULL;
 231     types[ntype] = NULL;
 232
 233     /* Check for public cache location */
 234     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 235         cache_public = NULL;
 236
 237     /* Check for private cache location */
 238     if (!(cache_private = context_find (nmhprivcache)))
 239         cache_private = ".cache";
 240     cache_private = getcpy (m_maildir (cache_private));
 241
 242     /*
 243      * Check for storage directory.  If specified,
 244      * then store temporary files there.  Else we
 245      * store them in standard nmh directory.
 246      */
 247     if ((cp = context_find (nmhstorage)) && *cp)
 248         tmp = concat (cp, "/", invo_name, NULL);
 249     else
 250         tmp = add (m_maildir (invo_name), NULL);
 251
 252     if (!context_find ("path"))
 253         free (path ("./", TFOLDER));
 254
 255     if (file && msgs.size)
 256         adios (NULL, "cannot specify msg and file at same time!");
 257
 258     /*
 259      * check if message is coming from file
 260      */
 261     if (file) {
 262         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 263             adios (NULL, "out of memory");
 264         ctp = cts;
 265
 266         if ((ct = parse_mime (file)))
 267             *ctp++ = ct;
 268     } else {
 269         /*
 270          * message(s) are coming from a folder
 271          */
 272         if (!msgs.size)
 273             app_msgarg(&msgs, "cur");
 274         if (!folder)
 275             folder = getfolder (1);
 276         maildir = m_maildir (folder);
 277
 278         if (chdir (maildir) == NOTOK)
 279             adios (maildir, "unable to change directory to");
 280
 281         /* read folder and create message structure */
 282         if (!(mp = folder_read (folder)))
 283             adios (NULL, "unable to read folder %s", folder);
 284
 285         /* check for empty folder */
 286         if (mp->nummsg == 0)
 287             adios (NULL, "no messages in %s", folder);
 288
 289         /* parse all the message ranges/sequences and set SELECTED */
 290         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 291             if (!m_convert (mp, msgs.msgs[msgnum]))
 292                 done (1);
 293         seq_setprev (mp);       /* set the previous-sequence */
 294
 295         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 296             adios (NULL, "out of memory");
 297         ctp = cts;
 298
 299         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 300             if (is_selected(mp, msgnum)) {
 301                 char *msgnam;
 302
 303                 msgnam = m_name (msgnum);
 304                 if ((ct = parse_mime (msgnam)))
 305                     *ctp++ = ct;
 306             }
 307         }
 308     }
 309
 310     if (!*cts)
 311         done (1);
 312
 313     userrs = 1;
 314     SIGNAL (SIGQUIT, quitser);
 315     SIGNAL (SIGPIPE, pipeser);
 316
 317     /*
 318      * Get the associated umask for the relevant contents.
 319      */
 320     for (ctp = cts; *ctp; ctp++) {
 321         struct stat st;
 322
 323         ct = *ctp;
 324         if (type_ok (ct, 1) && !ct->c_umask) {
 325             if (stat (ct->c_file, &st) != NOTOK)
 326                 ct->c_umask = ~(st.st_mode & 0777);
 327             else
 328                 ct->c_umask = ~m_gmprot();
 329         }
 330     }
 331
 332     /*
 333      * List the message content
 334      */
 335     list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 336
 337     /* Now free all the structures for the content */
 338     for (ctp = cts; *ctp; ctp++)
 339         free_content (*ctp);
 340
 341     free ((char *) cts);
 342     cts = NULL;
 343
 344     /* If reading from a folder, do some updating */
 345     if (mp) {
 346         context_replace (pfolder, folder);/* update current folder  */
 347         seq_setcur (mp, mp->hghsel);      /* update current message */
 348         seq_save (mp);                    /* synchronize sequences  */
 349         context_save ();                  /* save the context file  */
 350     }
 351
 352     done (0);
 353     return 1;
 354 }
 355
 356
 357 static void
 358 pipeser (int i)
 359 {
 360     if (i == SIGQUIT) {
 361         unlink ("core");
 362         fflush (stdout);
 363         fprintf (stderr, "\n");
 364         fflush (stderr);
 365     }
 366
 367     done (1);
 368     /* NOTREACHED */
 369 }