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 <h/mts.h>
  15 #include <h/tws.h>
  16 #include <h/mime.h>
  17 #include <h/mhparse.h>
  18 #include <h/mhcachesbr.h>
  19 #include <h/utils.h>
  20
  21 #define MHLIST_SWITCHES \
  22     X("check", 0, CHECKSW) \
  23     X("nocheck", 0, NCHECKSW) \
  24     X("headers", 0, HEADSW) \
  25     X("noheaders", 0, NHEADSW) \
  26     X("realsize", 0, SIZESW) \
  27     X("norealsize", 0, NSIZESW) \
  28     X("verbose", 0, VERBSW) \
  29     X("noverbose", 0, NVERBSW) \
  30     X("file file", 0, FILESW) \
  31     X("part number", 0, PARTSW) \
  32     X("type content", 0, TYPESW) \
  33     X("rcache policy", 0, RCACHESW) \
  34     X("wcache policy", 0, WCACHESW) \
  35     X("changecur", 0, CHGSW) \
  36     X("nochangecur", 0, NCHGSW) \
  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 extern CT *cts;
  90 void freects_done (int) NORETURN;
  91
  92 /*
  93  * static prototypes
  94  */
  95 static void pipeser (int);
  96
  97
  98 int
  99 main (int argc, char **argv)
 100 {
 101     int sizesw = 1, headsw = 1, chgflag = 1;
 102     int msgnum, *icachesw;
 103     char *cp, *file = NULL, *folder = NULL;
 104     char *maildir, buf[100], **argp;
 105     char **arguments;
 106     struct msgs_array msgs = { 0, 0, NULL };
 107     struct msgs *mp = NULL;
 108     CT ct, *ctp;
 109
 110     done=freects_done;
 111
 112 #ifdef LOCALE
 113     setlocale(LC_ALL, "");
 114 #endif
 115     invo_name = r1bindex (argv[0], '/');
 116
 117     /* read user profile/context */
 118     context_read();
 119
 120     arguments = getarguments (invo_name, argc, argv, 1);
 121     argp = arguments;
 122
 123     /*
 124      * Parse arguments
 125      */
 126     while ((cp = *argp++)) {
 127         if (*cp == '-') {
 128             switch (smatch (++cp, switches)) {
 129             case AMBIGSW:
 130                 ambigsw (cp, switches);
 131                 done (1);
 132             case UNKWNSW:
 133                 adios (NULL, "-%s unknown", cp);
 134
 135             case HELPSW:
 136                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 137                         invo_name);
 138                 print_help (buf, switches, 1);
 139                 done (0);
 140             case VERSIONSW:
 141                 print_version(invo_name);
 142                 done (0);
 143
 144             case RCACHESW:
 145                 icachesw = &rcachesw;
 146                 goto do_cache;
 147             case WCACHESW:
 148                 icachesw = &wcachesw;
 149 do_cache:
 150                 if (!(cp = *argp++) || *cp == '-')
 151                     adios (NULL, "missing argument to %s", argp[-2]);
 152                 switch (*icachesw = smatch (cp, caches)) {
 153                 case AMBIGSW:
 154                     ambigsw (cp, caches);
 155                     done (1);
 156                 case UNKWNSW:
 157                     adios (NULL, "%s unknown", cp);
 158                 default:
 159                     break;
 160                 }
 161                 continue;
 162
 163             case CHECKSW:
 164                 checksw++;
 165                 continue;
 166             case NCHECKSW:
 167                 checksw = 0;
 168                 continue;
 169
 170             case HEADSW:
 171                 headsw = 1;
 172                 continue;
 173             case NHEADSW:
 174                 headsw = 0;
 175                 continue;
 176
 177             case SIZESW:
 178                 sizesw = 1;
 179                 continue;
 180             case NSIZESW:
 181                 sizesw = 0;
 182                 continue;
 183
 184             case PARTSW:
 185                 if (!(cp = *argp++) || *cp == '-')
 186                     adios (NULL, "missing argument to %s", argp[-2]);
 187                 if (npart >= NPARTS)
 188                     adios (NULL, "too many parts (starting with %s), %d max",
 189                            cp, NPARTS);
 190                 parts[npart++] = cp;
 191                 continue;
 192
 193             case TYPESW:
 194                 if (!(cp = *argp++) || *cp == '-')
 195                     adios (NULL, "missing argument to %s", argp[-2]);
 196                 if (ntype >= NTYPES)
 197                     adios (NULL, "too many types (starting with %s), %d max",
 198                            cp, NTYPES);
 199                 types[ntype++] = cp;
 200                 continue;
 201
 202             case FILESW:
 203                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 204                     adios (NULL, "missing argument to %s", argp[-2]);
 205                 file = *cp == '-' ? cp : path (cp, TFILE);
 206                 continue;
 207
 208             case CHGSW:
 209                 chgflag++;
 210                 continue;
 211             case NCHGSW:
 212                 chgflag = 0;
 213                 continue;
 214
 215             case VERBSW:
 216                 verbosw = 1;
 217                 continue;
 218             case NVERBSW:
 219                 verbosw = 0;
 220                 continue;
 221             case DEBUGSW:
 222                 debugsw = 1;
 223                 continue;
 224             }
 225         }
 226         if (*cp == '+' || *cp == '@') {
 227             if (folder)
 228                 adios (NULL, "only one folder at a time!");
 229             else
 230                 folder = pluspath (cp);
 231         } else
 232                 app_msgarg(&msgs, cp);
 233     }
 234
 235     /* null terminate the list of acceptable parts/types */
 236     parts[npart] = NULL;
 237     types[ntype] = NULL;
 238
 239     /* Check for public cache location */
 240     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 241         cache_public = NULL;
 242
 243     /* Check for private cache location */
 244     if (!(cache_private = context_find (nmhprivcache)))
 245         cache_private = ".cache";
 246     cache_private = getcpy (m_maildir (cache_private));
 247
 248     /*
 249      * Check for storage directory.  If specified,
 250      * then store temporary files there.  Else we
 251      * store them in standard nmh directory.
 252      */
 253     if ((cp = context_find (nmhstorage)) && *cp)
 254         tmp = concat (cp, "/", invo_name, NULL);
 255     else
 256         tmp = add (m_maildir (invo_name), NULL);
 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         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 269             adios (NULL, "out of memory");
 270         ctp = cts;
 271
 272         if ((ct = parse_mime (file)))
 273             *ctp++ = ct;
 274     } else {
 275         /*
 276          * message(s) are coming from a folder
 277          */
 278         if (!msgs.size)
 279             app_msgarg(&msgs, "cur");
 280         if (!folder)
 281             folder = getfolder (1);
 282         maildir = m_maildir (folder);
 283
 284         if (chdir (maildir) == NOTOK)
 285             adios (maildir, "unable to change directory to");
 286
 287         /* read folder and create message structure */
 288         if (!(mp = folder_read (folder, 0)))
 289             adios (NULL, "unable to read folder %s", folder);
 290
 291         /* check for empty folder */
 292         if (mp->nummsg == 0)
 293             adios (NULL, "no messages in %s", folder);
 294
 295         /* parse all the message ranges/sequences and set SELECTED */
 296         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 297             if (!m_convert (mp, msgs.msgs[msgnum]))
 298                 done (1);
 299         seq_setprev (mp);       /* set the previous-sequence */
 300
 301         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 302             adios (NULL, "out of memory");
 303         ctp = cts;
 304
 305         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 306             if (is_selected(mp, msgnum)) {
 307                 char *msgnam;
 308
 309                 msgnam = m_name (msgnum);
 310                 if ((ct = parse_mime (msgnam)))
 311                     *ctp++ = ct;
 312             }
 313         }
 314     }
 315
 316     if (!*cts)
 317         done (1);
 318
 319     userrs = 1;
 320     SIGNAL (SIGQUIT, quitser);
 321     SIGNAL (SIGPIPE, pipeser);
 322
 323     /*
 324      * Get the associated umask for the relevant contents.
 325      */
 326     for (ctp = cts; *ctp; ctp++) {
 327         struct stat st;
 328
 329         ct = *ctp;
 330         if (type_ok (ct, 1) && !ct->c_umask) {
 331             if (stat (ct->c_file, &st) != NOTOK)
 332                 ct->c_umask = ~(st.st_mode & 0777);
 333             else
 334                 ct->c_umask = ~m_gmprot();
 335         }
 336     }
 337
 338     /*
 339      * List the message content
 340      */
 341     list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 342
 343     /* Now free all the structures for the content */
 344     for (ctp = cts; *ctp; ctp++)
 345         free_content (*ctp);
 346
 347     free ((char *) cts);
 348     cts = NULL;
 349
 350     /* If reading from a folder, do some updating */
 351     if (mp) {
 352         context_replace (pfolder, folder);/* update current folder  */
 353         if (chgflag)
 354             seq_setcur (mp, mp->hghsel);  /* update current message */
 355         seq_save (mp);                    /* synchronize sequences  */
 356         context_save ();                  /* save the context file  */
 357     }
 358
 359     done (0);
 360     return 1;
 361 }
 362
 363
 364 static void
 365 pipeser (int i)
 366 {
 367     if (i == SIGQUIT) {
 368         fflush (stdout);
 369         fprintf (stderr, "\n");
 370         fflush (stderr);
 371     }
 372
 373     done (1);
 374     /* NOTREACHED */
 375 }