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 static struct swit switches[] = {
  24 #define CHECKSW                 0
  25     { "check", 0 },
  26 #define NCHECKSW                1
  27     { "nocheck", 0 },
  28 #define HEADSW                  2
  29     { "headers", 0 },
  30 #define NHEADSW                 3
  31     { "noheaders", 0 },
  32 #define SIZESW                  4
  33     { "realsize", 0 },
  34 #define NSIZESW                 5
  35     { "norealsize", 0 },
  36 #define VERBSW                  6
  37     { "verbose", 0 },
  38 #define NVERBSW                 7
  39     { "noverbose", 0 },
  40 #define FILESW                  8       /* interface from show */
  41     { "file file", 0 },
  42 #define PARTSW                  9
  43     { "part number", 0 },
  44 #define TYPESW                 10
  45     { "type content", 0 },
  46 #define RCACHESW               11
  47     { "rcache policy", 0 },
  48 #define WCACHESW               12
  49     { "wcache policy", 0 },
  50 #define VERSIONSW              13
  51     { "version", 0 },
  52 #define HELPSW                 14
  53     { "help", 0 },
  54
  55 /*
  56  * switches for debugging
  57  */
  58 #define DEBUGSW                15
  59     { "debug", -5 },
  60     { NULL, 0 }
  61 };
  62
  63
  64 /* mhparse.c */
  65 extern char *tmp;       /* directory to place temp files */
  66
  67 /* mhcachesbr.c */
  68 extern int rcachesw;
  69 extern int wcachesw;
  70 extern char *cache_public;
  71 extern char *cache_private;
  72
  73 /* mhmisc.c */
  74 extern int npart;
  75 extern int ntype;
  76 extern char *parts[NPARTS + 1];
  77 extern char *types[NTYPES + 1];
  78 extern int userrs;
  79
  80 /*
  81  * This is currently needed to keep mhparse happy.
  82  * This needs to be changed.
  83  */
  84 pid_t xpid  = 0;
  85
  86 int debugsw = 0;
  87 int verbosw = 0;
  88
  89 #define quitser pipeser
  90
  91 /* mhparse.c */
  92 CT parse_mime (char *);
  93
  94 /* mhmisc.c */
  95 int part_ok (CT, int);
  96 int type_ok (CT, int);
  97 void flush_errors (void);
  98
  99 /* mhlistsbr.c */
 100 void list_all_messages (CT *, int, int, int, int);
 101
 102 /* mhfree.c */
 103 void free_content (CT);
 104 extern CT *cts;
 105 void freects_done (int) NORETURN;
 106
 107 /*
 108  * static prototypes
 109  */
 110 static void pipeser (int);
 111
 112
 113 int
 114 main (int argc, char **argv)
 115 {
 116     int sizesw = 1, headsw = 1;
 117     int msgnum, *icachesw;
 118     char *cp, *file = NULL, *folder = NULL;
 119     char *maildir, buf[100], **argp;
 120     char **arguments;
 121     struct msgs_array msgs = { 0, 0, NULL };
 122     struct msgs *mp = NULL;
 123     CT ct, *ctp;
 124
 125     done=freects_done;
 126
 127 #ifdef LOCALE
 128     setlocale(LC_ALL, "");
 129 #endif
 130     invo_name = r1bindex (argv[0], '/');
 131
 132     /* read user profile/context */
 133     context_read();
 134
 135     arguments = getarguments (invo_name, argc, argv, 1);
 136     argp = arguments;
 137
 138     /*
 139      * Parse arguments
 140      */
 141     while ((cp = *argp++)) {
 142         if (*cp == '-') {
 143             switch (smatch (++cp, switches)) {
 144             case AMBIGSW:
 145                 ambigsw (cp, switches);
 146                 done (1);
 147             case UNKWNSW:
 148                 adios (NULL, "-%s unknown", cp);
 149
 150             case HELPSW:
 151                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 152                         invo_name);
 153                 print_help (buf, switches, 1);
 154                 done (0);
 155             case VERSIONSW:
 156                 print_version(invo_name);
 157                 done (0);
 158
 159             case RCACHESW:
 160                 icachesw = &rcachesw;
 161                 goto do_cache;
 162             case WCACHESW:
 163                 icachesw = &wcachesw;
 164 do_cache:
 165                 if (!(cp = *argp++) || *cp == '-')
 166                     adios (NULL, "missing argument to %s", argp[-2]);
 167                 switch (*icachesw = smatch (cp, caches)) {
 168                 case AMBIGSW:
 169                     ambigsw (cp, caches);
 170                     done (1);
 171                 case UNKWNSW:
 172                     adios (NULL, "%s unknown", cp);
 173                 default:
 174                     break;
 175                 }
 176                 continue;
 177
 178             case CHECKSW:
 179                 checksw++;
 180                 continue;
 181             case NCHECKSW:
 182                 checksw = 0;
 183                 continue;
 184
 185             case HEADSW:
 186                 headsw = 1;
 187                 continue;
 188             case NHEADSW:
 189                 headsw = 0;
 190                 continue;
 191
 192             case SIZESW:
 193                 sizesw = 1;
 194                 continue;
 195             case NSIZESW:
 196                 sizesw = 0;
 197                 continue;
 198
 199             case PARTSW:
 200                 if (!(cp = *argp++) || *cp == '-')
 201                     adios (NULL, "missing argument to %s", argp[-2]);
 202                 if (npart >= NPARTS)
 203                     adios (NULL, "too many parts (starting with %s), %d max",
 204                            cp, NPARTS);
 205                 parts[npart++] = cp;
 206                 continue;
 207
 208             case TYPESW:
 209                 if (!(cp = *argp++) || *cp == '-')
 210                     adios (NULL, "missing argument to %s", argp[-2]);
 211                 if (ntype >= NTYPES)
 212                     adios (NULL, "too many types (starting with %s), %d max",
 213                            cp, NTYPES);
 214                 types[ntype++] = cp;
 215                 continue;
 216
 217             case FILESW:
 218                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 219                     adios (NULL, "missing argument to %s", argp[-2]);
 220                 file = *cp == '-' ? cp : path (cp, TFILE);
 221                 continue;
 222
 223             case VERBSW:
 224                 verbosw = 1;
 225                 continue;
 226             case NVERBSW:
 227                 verbosw = 0;
 228                 continue;
 229             case DEBUGSW:
 230                 debugsw = 1;
 231                 continue;
 232             }
 233         }
 234         if (*cp == '+' || *cp == '@') {
 235             if (folder)
 236                 adios (NULL, "only one folder at a time!");
 237             else
 238                 folder = pluspath (cp);
 239         } else
 240                 app_msgarg(&msgs, cp);
 241     }
 242
 243     /* null terminate the list of acceptable parts/types */
 244     parts[npart] = NULL;
 245     types[ntype] = NULL;
 246
 247     /* Check for public cache location */
 248     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 249         cache_public = NULL;
 250
 251     /* Check for private cache location */
 252     if (!(cache_private = context_find (nmhprivcache)))
 253         cache_private = ".cache";
 254     cache_private = getcpy (m_maildir (cache_private));
 255
 256     /*
 257      * Check for storage directory.  If specified,
 258      * then store temporary files there.  Else we
 259      * store them in standard nmh directory.
 260      */
 261     if ((cp = context_find (nmhstorage)) && *cp)
 262         tmp = concat (cp, "/", invo_name, NULL);
 263     else
 264         tmp = add (m_maildir (invo_name), NULL);
 265
 266     if (!context_find ("path"))
 267         free (path ("./", TFOLDER));
 268
 269     if (file && msgs.size)
 270         adios (NULL, "cannot specify msg and file at same time!");
 271
 272     /*
 273      * check if message is coming from file
 274      */
 275     if (file) {
 276         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 277             adios (NULL, "out of memory");
 278         ctp = cts;
 279
 280         if ((ct = parse_mime (file)))
 281             *ctp++ = ct;
 282     } else {
 283         /*
 284          * message(s) are coming from a folder
 285          */
 286         if (!msgs.size)
 287             app_msgarg(&msgs, "cur");
 288         if (!folder)
 289             folder = getfolder (1);
 290         maildir = m_maildir (folder);
 291
 292         if (chdir (maildir) == NOTOK)
 293             adios (maildir, "unable to change directory to");
 294
 295         /* read folder and create message structure */
 296         if (!(mp = folder_read (folder)))
 297             adios (NULL, "unable to read folder %s", folder);
 298
 299         /* check for empty folder */
 300         if (mp->nummsg == 0)
 301             adios (NULL, "no messages in %s", folder);
 302
 303         /* parse all the message ranges/sequences and set SELECTED */
 304         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 305             if (!m_convert (mp, msgs.msgs[msgnum]))
 306                 done (1);
 307         seq_setprev (mp);       /* set the previous-sequence */
 308
 309         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 310             adios (NULL, "out of memory");
 311         ctp = cts;
 312
 313         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 314             if (is_selected(mp, msgnum)) {
 315                 char *msgnam;
 316
 317                 msgnam = m_name (msgnum);
 318                 if ((ct = parse_mime (msgnam)))
 319                     *ctp++ = ct;
 320             }
 321         }
 322     }
 323
 324     if (!*cts)
 325         done (1);
 326
 327     userrs = 1;
 328     SIGNAL (SIGQUIT, quitser);
 329     SIGNAL (SIGPIPE, pipeser);
 330
 331     /*
 332      * Get the associated umask for the relevant contents.
 333      */
 334     for (ctp = cts; *ctp; ctp++) {
 335         struct stat st;
 336
 337         ct = *ctp;
 338         if (type_ok (ct, 1) && !ct->c_umask) {
 339             if (stat (ct->c_file, &st) != NOTOK)
 340                 ct->c_umask = ~(st.st_mode & 0777);
 341             else
 342                 ct->c_umask = ~m_gmprot();
 343         }
 344     }
 345
 346     /*
 347      * List the message content
 348      */
 349     list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 350
 351     /* Now free all the structures for the content */
 352     for (ctp = cts; *ctp; ctp++)
 353         free_content (*ctp);
 354
 355     free ((char *) cts);
 356     cts = NULL;
 357
 358     /* If reading from a folder, do some updating */
 359     if (mp) {
 360         context_replace (pfolder, folder);/* update current folder  */
 361         seq_setcur (mp, mp->hghsel);      /* update current message */
 362         seq_save (mp);                    /* synchronize sequences  */
 363         context_save ();                  /* save the context file  */
 364     }
 365
 366     done (0);
 367     return 1;
 368 }
 369
 370
 371 static void
 372 pipeser (int i)
 373 {
 374     if (i == SIGQUIT) {
 375         unlink ("core");
 376         fflush (stdout);
 377         fprintf (stderr, "\n");
 378         fflush (stderr);
 379     }
 380
 381     done (1);
 382     /* NOTREACHED */
 383 }