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 #ifdef HAVE_SYS_WAIT_H
  24 # include <sys/wait.h>
  25 #endif
  26
  27 static struct swit switches[] = {
  28 #define CHECKSW                 0
  29     { "check", 0 },
  30 #define NCHECKSW                1
  31     { "nocheck", 0 },
  32 #define HEADSW                  2
  33     { "headers", 0 },
  34 #define NHEADSW                 3
  35     { "noheaders", 0 },
  36 #define SIZESW                  4
  37     { "realsize", 0 },
  38 #define NSIZESW                 5
  39     { "norealsize", 0 },
  40 #define VERBSW                  6
  41     { "verbose", 0 },
  42 #define NVERBSW                 7
  43     { "noverbose", 0 },
  44 #define FILESW                  8       /* interface from show */
  45     { "file file", 0 },
  46 #define PARTSW                  9
  47     { "part number", 0 },
  48 #define TYPESW                 10
  49     { "type content", 0 },
  50 #define RCACHESW               11
  51     { "rcache policy", 0 },
  52 #define WCACHESW               12
  53     { "wcache policy", 0 },
  54 #define VERSIONSW              13
  55     { "version", 0 },
  56 #define HELPSW                 14
  57     { "help", 0 },
  58
  59 /*
  60  * switches for debugging
  61  */
  62 #define DEBUGSW                15
  63     { "debug", -5 },
  64     { NULL, 0 }
  65 };
  66
  67
  68 /* mhparse.c */
  69 extern char *tmp;       /* directory to place temp files */
  70
  71 /* mhcachesbr.c */
  72 extern int rcachesw;
  73 extern int wcachesw;
  74 extern char *cache_public;
  75 extern char *cache_private;
  76
  77 /* mhmisc.c */
  78 extern int npart;
  79 extern int ntype;
  80 extern char *parts[NPARTS + 1];
  81 extern char *types[NTYPES + 1];
  82 extern int userrs;
  83
  84 /*
  85  * This is currently needed to keep mhparse happy.
  86  * This needs to be changed.
  87  */
  88 pid_t xpid  = 0;
  89
  90 int debugsw = 0;
  91 int verbosw = 0;
  92
  93 #define quitser pipeser
  94
  95 /* mhparse.c */
  96 CT parse_mime (char *);
  97
  98 /* mhmisc.c */
  99 int part_ok (CT, int);
 100 int type_ok (CT, int);
 101 void set_endian (void);
 102 void flush_errors (void);
 103
 104 /* mhlistsbr.c */
 105 void list_all_messages (CT *, int, int, int, int);
 106
 107 /* mhfree.c */
 108 void free_content (CT);
 109 extern CT *cts;
 110 void freects_done (int) NORETURN;
 111
 112 /*
 113  * static prototypes
 114  */
 115 static RETSIGTYPE pipeser (int);
 116
 117
 118 int
 119 main (int argc, char **argv)
 120 {
 121     int sizesw = 1, headsw = 1;
 122     int msgnum, *icachesw;
 123     char *cp, *file = NULL, *folder = NULL;
 124     char *maildir, buf[100], **argp;
 125     char **arguments;
 126     struct msgs_array msgs = { 0, 0, NULL };
 127     struct msgs *mp = NULL;
 128     CT ct, *ctp;
 129
 130     done=freects_done;
 131
 132 #ifdef LOCALE
 133     setlocale(LC_ALL, "");
 134 #endif
 135     invo_name = r1bindex (argv[0], '/');
 136
 137     /* read user profile/context */
 138     context_read();
 139
 140     arguments = getarguments (invo_name, argc, argv, 1);
 141     argp = arguments;
 142
 143     /*
 144      * Parse arguments
 145      */
 146     while ((cp = *argp++)) {
 147         if (*cp == '-') {
 148             switch (smatch (++cp, switches)) {
 149             case AMBIGSW:
 150                 ambigsw (cp, switches);
 151                 done (1);
 152             case UNKWNSW:
 153                 adios (NULL, "-%s unknown", cp);
 154
 155             case HELPSW:
 156                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 157                         invo_name);
 158                 print_help (buf, switches, 1);
 159                 done (1);
 160             case VERSIONSW:
 161                 print_version(invo_name);
 162                 done (1);
 163
 164             case RCACHESW:
 165                 icachesw = &rcachesw;
 166                 goto do_cache;
 167             case WCACHESW:
 168                 icachesw = &wcachesw;
 169 do_cache:
 170                 if (!(cp = *argp++) || *cp == '-')
 171                     adios (NULL, "missing argument to %s", argp[-2]);
 172                 switch (*icachesw = smatch (cp, caches)) {
 173                 case AMBIGSW:
 174                     ambigsw (cp, caches);
 175                     done (1);
 176                 case UNKWNSW:
 177                     adios (NULL, "%s unknown", cp);
 178                 default:
 179                     break;
 180                 }
 181                 continue;
 182
 183             case CHECKSW:
 184                 checksw++;
 185                 continue;
 186             case NCHECKSW:
 187                 checksw = 0;
 188                 continue;
 189
 190             case HEADSW:
 191                 headsw = 1;
 192                 continue;
 193             case NHEADSW:
 194                 headsw = 0;
 195                 continue;
 196
 197             case SIZESW:
 198                 sizesw = 1;
 199                 continue;
 200             case NSIZESW:
 201                 sizesw = 0;
 202                 continue;
 203
 204             case PARTSW:
 205                 if (!(cp = *argp++) || *cp == '-')
 206                     adios (NULL, "missing argument to %s", argp[-2]);
 207                 if (npart >= NPARTS)
 208                     adios (NULL, "too many parts (starting with %s), %d max",
 209                            cp, NPARTS);
 210                 parts[npart++] = cp;
 211                 continue;
 212
 213             case TYPESW:
 214                 if (!(cp = *argp++) || *cp == '-')
 215                     adios (NULL, "missing argument to %s", argp[-2]);
 216                 if (ntype >= NTYPES)
 217                     adios (NULL, "too many types (starting with %s), %d max",
 218                            cp, NTYPES);
 219                 types[ntype++] = cp;
 220                 continue;
 221
 222             case FILESW:
 223                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 224                     adios (NULL, "missing argument to %s", argp[-2]);
 225                 file = *cp == '-' ? cp : path (cp, TFILE);
 226                 continue;
 227
 228             case VERBSW:
 229                 verbosw = 1;
 230                 continue;
 231             case NVERBSW:
 232                 verbosw = 0;
 233                 continue;
 234             case DEBUGSW:
 235                 debugsw = 1;
 236                 continue;
 237             }
 238         }
 239         if (*cp == '+' || *cp == '@') {
 240             if (folder)
 241                 adios (NULL, "only one folder at a time!");
 242             else
 243                 folder = pluspath (cp);
 244         } else
 245                 app_msgarg(&msgs, cp);
 246     }
 247
 248     /* null terminate the list of acceptable parts/types */
 249     parts[npart] = NULL;
 250     types[ntype] = NULL;
 251
 252     set_endian ();
 253
 254     /* Check for public cache location */
 255     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 256         cache_public = NULL;
 257
 258     /* Check for private cache location */
 259     if (!(cache_private = context_find (nmhprivcache)))
 260         cache_private = ".cache";
 261     cache_private = getcpy (m_maildir (cache_private));
 262
 263     /*
 264      * Check for storage directory.  If specified,
 265      * then store temporary files there.  Else we
 266      * store them in standard nmh directory.
 267      */
 268     if ((cp = context_find (nmhstorage)) && *cp)
 269         tmp = concat (cp, "/", invo_name, NULL);
 270     else
 271         tmp = add (m_maildir (invo_name), NULL);
 272
 273     if (!context_find ("path"))
 274         free (path ("./", TFOLDER));
 275
 276     if (file && msgs.size)
 277         adios (NULL, "cannot specify msg and file at same time!");
 278
 279     /*
 280      * check if message is coming from file
 281      */
 282     if (file) {
 283         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 284             adios (NULL, "out of memory");
 285         ctp = cts;
 286
 287         if ((ct = parse_mime (file)));
 288             *ctp++ = ct;
 289     } else {
 290         /*
 291          * message(s) are coming from a folder
 292          */
 293         if (!msgs.size)
 294             app_msgarg(&msgs, "cur");
 295         if (!folder)
 296             folder = getfolder (1);
 297         maildir = m_maildir (folder);
 298
 299         if (chdir (maildir) == NOTOK)
 300             adios (maildir, "unable to change directory to");
 301
 302         /* read folder and create message structure */
 303         if (!(mp = folder_read (folder)))
 304             adios (NULL, "unable to read folder %s", folder);
 305
 306         /* check for empty folder */
 307         if (mp->nummsg == 0)
 308             adios (NULL, "no messages in %s", folder);
 309
 310         /* parse all the message ranges/sequences and set SELECTED */
 311         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 312             if (!m_convert (mp, msgs.msgs[msgnum]))
 313                 done (1);
 314         seq_setprev (mp);       /* set the previous-sequence */
 315
 316         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 317             adios (NULL, "out of memory");
 318         ctp = cts;
 319
 320         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 321             if (is_selected(mp, msgnum)) {
 322                 char *msgnam;
 323
 324                 msgnam = m_name (msgnum);
 325                 if ((ct = parse_mime (msgnam)))
 326                     *ctp++ = ct;
 327             }
 328         }
 329     }
 330
 331     if (!*cts)
 332         done (1);
 333
 334     userrs = 1;
 335     SIGNAL (SIGQUIT, quitser);
 336     SIGNAL (SIGPIPE, pipeser);
 337
 338     /*
 339      * Get the associated umask for the relevant contents.
 340      */
 341     for (ctp = cts; *ctp; ctp++) {
 342         struct stat st;
 343
 344         ct = *ctp;
 345         if (type_ok (ct, 1) && !ct->c_umask) {
 346             if (stat (ct->c_file, &st) != NOTOK)
 347                 ct->c_umask = ~(st.st_mode & 0777);
 348             else
 349                 ct->c_umask = ~m_gmprot();
 350         }
 351     }
 352
 353     /*
 354      * List the message content
 355      */
 356     list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 357
 358     /* Now free all the structures for the content */
 359     for (ctp = cts; *ctp; ctp++)
 360         free_content (*ctp);
 361
 362     free ((char *) cts);
 363     cts = NULL;
 364
 365     /* If reading from a folder, do some updating */
 366     if (mp) {
 367         context_replace (pfolder, folder);/* update current folder  */
 368         seq_setcur (mp, mp->hghsel);      /* update current message */
 369         seq_save (mp);                    /* synchronize sequences  */
 370         context_save ();                  /* save the context file  */
 371     }
 372
 373     done (0);
 374     return 1;
 375 }
 376
 377
 378 static RETSIGTYPE
 379 pipeser (int i)
 380 {
 381     if (i == SIGQUIT) {
 382         unlink ("core");
 383         fflush (stdout);
 384         fprintf (stderr, "\n");
 385         fflush (stderr);
 386     }
 387
 388     done (1);
 389     /* NOTREACHED */
 390 }