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

   1
   2 /*
   3  * mhlist.c -- list the contents of MIME messages
   4  *
   5  * $Id$
   6  *
   7  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   8  * COPYRIGHT file in the root directory of the nmh distribution for
   9  * complete copyright information.
  10  */
  11
  12 #include <h/mh.h>
  13 #include <fcntl.h>
  14 #include <h/signals.h>
  15 #include <h/md5.h>
  16 #include <errno.h>
  17 #include <signal.h>
  18 #include <h/mts.h>
  19 #include <h/tws.h>
  20 #include <h/mime.h>
  21 #include <h/mhparse.h>
  22 #include <h/mhcachesbr.h>
  23 #include <h/utils.h>
  24
  25 #ifdef HAVE_SYS_WAIT_H
  26 # include <sys/wait.h>
  27 #endif
  28
  29 static struct swit switches[] = {
  30 #define CHECKSW                 0
  31     { "check", 0 },
  32 #define NCHECKSW                1
  33     { "nocheck", 0 },
  34 #define HEADSW                  2
  35     { "headers", 0 },
  36 #define NHEADSW                 3
  37     { "noheaders", 0 },
  38 #define SIZESW                  4
  39     { "realsize", 0 },
  40 #define NSIZESW                 5
  41     { "norealsize", 0 },
  42 #define VERBSW                  6
  43     { "verbose", 0 },
  44 #define NVERBSW                 7
  45     { "noverbose", 0 },
  46 #define FILESW                  8       /* interface from show */
  47     { "file file", 0 },
  48 #define PARTSW                  9
  49     { "part number", 0 },
  50 #define TYPESW                 10
  51     { "type content", 0 },
  52 #define RCACHESW               11
  53     { "rcache policy", 0 },
  54 #define WCACHESW               12
  55     { "wcache policy", 0 },
  56 #define VERSIONSW              13
  57     { "version", 0 },
  58 #define HELPSW                 14
  59     { "help", 0 },
  60
  61 /*
  62  * switches for debugging
  63  */
  64 #define DEBUGSW                15
  65     { "debug", -5 },
  66     { NULL, 0 }
  67 };
  68
  69
  70 /* mhparse.c */
  71 extern int checksw;
  72 extern char *tmp;       /* directory to place temp files */
  73
  74 /* mhcachesbr.c */
  75 extern int rcachesw;
  76 extern int wcachesw;
  77 extern char *cache_public;
  78 extern char *cache_private;
  79
  80 /* mhmisc.c */
  81 extern int npart;
  82 extern int ntype;
  83 extern char *parts[NPARTS + 1];
  84 extern char *types[NTYPES + 1];
  85 extern int userrs;
  86
  87 /*
  88  * This is currently needed to keep mhparse happy.
  89  * This needs to be changed.
  90  */
  91 pid_t xpid  = 0;
  92
  93 int debugsw = 0;
  94 int verbosw = 0;
  95
  96 #define quitser pipeser
  97
  98 /* mhparse.c */
  99 CT parse_mime (char *);
 100
 101 /* mhmisc.c */
 102 int part_ok (CT, int);
 103 int type_ok (CT, int);
 104 void set_endian (void);
 105 void flush_errors (void);
 106
 107 /* mhlistsbr.c */
 108 void list_all_messages (CT *, int, int, int, int);
 109
 110 /* mhfree.c */
 111 void free_content (CT);
 112 extern CT *cts;
 113 void freects_done (int) NORETURN;
 114
 115 /*
 116  * static prototypes
 117  */
 118 static RETSIGTYPE pipeser (int);
 119
 120
 121 int
 122 main (int argc, char **argv)
 123 {
 124     int sizesw = 1, headsw = 1;
 125     int msgnum, *icachesw;
 126     char *cp, *file = NULL, *folder = NULL;
 127     char *maildir, buf[100], **argp;
 128     char **arguments;
 129     struct msgs_array msgs = { 0, 0, NULL };
 130     struct msgs *mp = NULL;
 131     CT ct, *ctp;
 132
 133     done=freects_done;
 134
 135 #ifdef LOCALE
 136     setlocale(LC_ALL, "");
 137 #endif
 138     invo_name = r1bindex (argv[0], '/');
 139
 140     /* read user profile/context */
 141     context_read();
 142
 143     arguments = getarguments (invo_name, argc, argv, 1);
 144     argp = arguments;
 145
 146     /*
 147      * Parse arguments
 148      */
 149     while ((cp = *argp++)) {
 150         if (*cp == '-') {
 151             switch (smatch (++cp, switches)) {
 152             case AMBIGSW:
 153                 ambigsw (cp, switches);
 154                 done (1);
 155             case UNKWNSW:
 156                 adios (NULL, "-%s unknown", cp);
 157
 158             case HELPSW:
 159                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 160                         invo_name);
 161                 print_help (buf, switches, 1);
 162                 done (1);
 163             case VERSIONSW:
 164                 print_version(invo_name);
 165                 done (1);
 166
 167             case RCACHESW:
 168                 icachesw = &rcachesw;
 169                 goto do_cache;
 170             case WCACHESW:
 171                 icachesw = &wcachesw;
 172 do_cache:
 173                 if (!(cp = *argp++) || *cp == '-')
 174                     adios (NULL, "missing argument to %s", argp[-2]);
 175                 switch (*icachesw = smatch (cp, caches)) {
 176                 case AMBIGSW:
 177                     ambigsw (cp, caches);
 178                     done (1);
 179                 case UNKWNSW:
 180                     adios (NULL, "%s unknown", cp);
 181                 default:
 182                     break;
 183                 }
 184                 continue;
 185
 186             case CHECKSW:
 187                 checksw++;
 188                 continue;
 189             case NCHECKSW:
 190                 checksw = 0;
 191                 continue;
 192
 193             case HEADSW:
 194                 headsw = 1;
 195                 continue;
 196             case NHEADSW:
 197                 headsw = 0;
 198                 continue;
 199
 200             case SIZESW:
 201                 sizesw = 1;
 202                 continue;
 203             case NSIZESW:
 204                 sizesw = 0;
 205                 continue;
 206
 207             case PARTSW:
 208                 if (!(cp = *argp++) || *cp == '-')
 209                     adios (NULL, "missing argument to %s", argp[-2]);
 210                 if (npart >= NPARTS)
 211                     adios (NULL, "too many parts (starting with %s), %d max",
 212                            cp, NPARTS);
 213                 parts[npart++] = cp;
 214                 continue;
 215
 216             case TYPESW:
 217                 if (!(cp = *argp++) || *cp == '-')
 218                     adios (NULL, "missing argument to %s", argp[-2]);
 219                 if (ntype >= NTYPES)
 220                     adios (NULL, "too many types (starting with %s), %d max",
 221                            cp, NTYPES);
 222                 types[ntype++] = cp;
 223                 continue;
 224
 225             case FILESW:
 226                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 227                     adios (NULL, "missing argument to %s", argp[-2]);
 228                 file = *cp == '-' ? cp : path (cp, TFILE);
 229                 continue;
 230
 231             case VERBSW:
 232                 verbosw = 1;
 233                 continue;
 234             case NVERBSW:
 235                 verbosw = 0;
 236                 continue;
 237             case DEBUGSW:
 238                 debugsw = 1;
 239                 continue;
 240             }
 241         }
 242         if (*cp == '+' || *cp == '@') {
 243             if (folder)
 244                 adios (NULL, "only one folder at a time!");
 245             else
 246                 folder = pluspath (cp);
 247         } else
 248                 app_msgarg(&msgs, cp);
 249     }
 250
 251     /* null terminate the list of acceptable parts/types */
 252     parts[npart] = NULL;
 253     types[ntype] = NULL;
 254
 255     set_endian ();
 256
 257     /* Check for public cache location */
 258     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 259         cache_public = NULL;
 260
 261     /* Check for private cache location */
 262     if (!(cache_private = context_find (nmhprivcache)))
 263         cache_private = ".cache";
 264     cache_private = getcpy (m_maildir (cache_private));
 265
 266     /*
 267      * Check for storage directory.  If specified,
 268      * then store temporary files there.  Else we
 269      * store them in standard nmh directory.
 270      */
 271     if ((cp = context_find (nmhstorage)) && *cp)
 272         tmp = concat (cp, "/", invo_name, NULL);
 273     else
 274         tmp = add (m_maildir (invo_name), NULL);
 275
 276     if (!context_find ("path"))
 277         free (path ("./", TFOLDER));
 278
 279     if (file && msgs.size)
 280         adios (NULL, "cannot specify msg and file at same time!");
 281
 282     /*
 283      * check if message is coming from file
 284      */
 285     if (file) {
 286         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 287             adios (NULL, "out of memory");
 288         ctp = cts;
 289
 290         if ((ct = parse_mime (file)));
 291             *ctp++ = ct;
 292     } else {
 293         /*
 294          * message(s) are coming from a folder
 295          */
 296         if (!msgs.size)
 297             app_msgarg(&msgs, "cur");
 298         if (!folder)
 299             folder = getfolder (1);
 300         maildir = m_maildir (folder);
 301
 302         if (chdir (maildir) == NOTOK)
 303             adios (maildir, "unable to change directory to");
 304
 305         /* read folder and create message structure */
 306         if (!(mp = folder_read (folder)))
 307             adios (NULL, "unable to read folder %s", folder);
 308
 309         /* check for empty folder */
 310         if (mp->nummsg == 0)
 311             adios (NULL, "no messages in %s", folder);
 312
 313         /* parse all the message ranges/sequences and set SELECTED */
 314         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 315             if (!m_convert (mp, msgs.msgs[msgnum]))
 316                 done (1);
 317         seq_setprev (mp);       /* set the previous-sequence */
 318
 319         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 320             adios (NULL, "out of memory");
 321         ctp = cts;
 322
 323         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 324             if (is_selected(mp, msgnum)) {
 325                 char *msgnam;
 326
 327                 msgnam = m_name (msgnum);
 328                 if ((ct = parse_mime (msgnam)))
 329                     *ctp++ = ct;
 330             }
 331         }
 332     }
 333
 334     if (!*cts)
 335         done (1);
 336
 337     userrs = 1;
 338     SIGNAL (SIGQUIT, quitser);
 339     SIGNAL (SIGPIPE, pipeser);
 340
 341     /*
 342      * Get the associated umask for the relevant contents.
 343      */
 344     for (ctp = cts; *ctp; ctp++) {
 345         struct stat st;
 346
 347         ct = *ctp;
 348         if (type_ok (ct, 1) && !ct->c_umask) {
 349             if (stat (ct->c_file, &st) != NOTOK)
 350                 ct->c_umask = ~(st.st_mode & 0777);
 351             else
 352                 ct->c_umask = ~m_gmprot();
 353         }
 354     }
 355
 356     /*
 357      * List the message content
 358      */
 359     list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 360
 361     /* Now free all the structures for the content */
 362     for (ctp = cts; *ctp; ctp++)
 363         free_content (*ctp);
 364
 365     free ((char *) cts);
 366     cts = NULL;
 367
 368     /* If reading from a folder, do some updating */
 369     if (mp) {
 370         context_replace (pfolder, folder);/* update current folder  */
 371         seq_setcur (mp, mp->hghsel);      /* update current message */
 372         seq_save (mp);                    /* synchronize sequences  */
 373         context_save ();                  /* save the context file  */
 374     }
 375
 376     done (0);
 377     return 1;
 378 }
 379
 380
 381 static RETSIGTYPE
 382 pipeser (int i)
 383 {
 384     if (i == SIGQUIT) {
 385         unlink ("core");
 386         fflush (stdout);
 387         fprintf (stderr, "\n");
 388         fflush (stderr);
 389     }
 390
 391     done (1);
 392     /* NOTREACHED */
 393 }