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     setlocale(LC_ALL, "");
 113     invo_name = r1bindex (argv[0], '/');
 114
 115     /* read user profile/context */
 116     context_read();
 117
 118     arguments = getarguments (invo_name, argc, argv, 1);
 119     argp = arguments;
 120
 121     /*
 122      * Parse arguments
 123      */
 124     while ((cp = *argp++)) {
 125         if (*cp == '-') {
 126             switch (smatch (++cp, switches)) {
 127             case AMBIGSW:
 128                 ambigsw (cp, switches);
 129                 done (1);
 130             case UNKWNSW:
 131                 adios (NULL, "-%s unknown", cp);
 132
 133             case HELPSW:
 134                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 135                         invo_name);
 136                 print_help (buf, switches, 1);
 137                 done (0);
 138             case VERSIONSW:
 139                 print_version(invo_name);
 140                 done (0);
 141
 142             case RCACHESW:
 143                 icachesw = &rcachesw;
 144                 goto do_cache;
 145             case WCACHESW:
 146                 icachesw = &wcachesw;
 147 do_cache:
 148                 if (!(cp = *argp++) || *cp == '-')
 149                     adios (NULL, "missing argument to %s", argp[-2]);
 150                 switch (*icachesw = smatch (cp, caches)) {
 151                 case AMBIGSW:
 152                     ambigsw (cp, caches);
 153                     done (1);
 154                 case UNKWNSW:
 155                     adios (NULL, "%s unknown", cp);
 156                 default:
 157                     break;
 158                 }
 159                 continue;
 160
 161             case CHECKSW:
 162                 checksw++;
 163                 continue;
 164             case NCHECKSW:
 165                 checksw = 0;
 166                 continue;
 167
 168             case HEADSW:
 169                 headsw = 1;
 170                 continue;
 171             case NHEADSW:
 172                 headsw = 0;
 173                 continue;
 174
 175             case SIZESW:
 176                 sizesw = 1;
 177                 continue;
 178             case NSIZESW:
 179                 sizesw = 0;
 180                 continue;
 181
 182             case PARTSW:
 183                 if (!(cp = *argp++) || *cp == '-')
 184                     adios (NULL, "missing argument to %s", argp[-2]);
 185                 if (npart >= NPARTS)
 186                     adios (NULL, "too many parts (starting with %s), %d max",
 187                            cp, NPARTS);
 188                 parts[npart++] = cp;
 189                 continue;
 190
 191             case TYPESW:
 192                 if (!(cp = *argp++) || *cp == '-')
 193                     adios (NULL, "missing argument to %s", argp[-2]);
 194                 if (ntype >= NTYPES)
 195                     adios (NULL, "too many types (starting with %s), %d max",
 196                            cp, NTYPES);
 197                 types[ntype++] = cp;
 198                 continue;
 199
 200             case FILESW:
 201                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 202                     adios (NULL, "missing argument to %s", argp[-2]);
 203                 file = *cp == '-' ? cp : path (cp, TFILE);
 204                 continue;
 205
 206             case CHGSW:
 207                 chgflag++;
 208                 continue;
 209             case NCHGSW:
 210                 chgflag = 0;
 211                 continue;
 212
 213             case VERBSW:
 214                 verbosw = 1;
 215                 continue;
 216             case NVERBSW:
 217                 verbosw = 0;
 218                 continue;
 219             case DEBUGSW:
 220                 debugsw = 1;
 221                 continue;
 222             }
 223         }
 224         if (*cp == '+' || *cp == '@') {
 225             if (folder)
 226                 adios (NULL, "only one folder at a time!");
 227             else
 228                 folder = pluspath (cp);
 229         } else
 230                 app_msgarg(&msgs, cp);
 231     }
 232
 233     /* null terminate the list of acceptable parts/types */
 234     parts[npart] = NULL;
 235     types[ntype] = NULL;
 236
 237     /* Check for public cache location */
 238     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 239         cache_public = NULL;
 240
 241     /* Check for private cache location */
 242     if (!(cache_private = context_find (nmhprivcache)))
 243         cache_private = ".cache";
 244     cache_private = getcpy (m_maildir (cache_private));
 245
 246     /*
 247      * Check for storage directory.  If specified,
 248      * then store temporary files there.  Else we
 249      * store them in standard nmh directory.
 250      */
 251     if ((cp = context_find (nmhstorage)) && *cp)
 252         tmp = concat (cp, "/", invo_name, NULL);
 253     else
 254         tmp = add (m_maildir (invo_name), NULL);
 255
 256     if (!context_find ("path"))
 257         free (path ("./", TFOLDER));
 258
 259     if (file && msgs.size)
 260         adios (NULL, "cannot specify msg and file at same time!");
 261
 262     /*
 263      * check if message is coming from file
 264      */
 265     if (file) {
 266         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 267             adios (NULL, "out of memory");
 268         ctp = cts;
 269
 270         if ((ct = parse_mime (file)))
 271             *ctp++ = ct;
 272     } else {
 273         /*
 274          * message(s) are coming from a folder
 275          */
 276         if (!msgs.size)
 277             app_msgarg(&msgs, "cur");
 278         if (!folder)
 279             folder = getfolder (1);
 280         maildir = m_maildir (folder);
 281
 282         if (chdir (maildir) == NOTOK)
 283             adios (maildir, "unable to change directory to");
 284
 285         /* read folder and create message structure */
 286         if (!(mp = folder_read (folder, 0)))
 287             adios (NULL, "unable to read folder %s", folder);
 288
 289         /* check for empty folder */
 290         if (mp->nummsg == 0)
 291             adios (NULL, "no messages in %s", folder);
 292
 293         /* parse all the message ranges/sequences and set SELECTED */
 294         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 295             if (!m_convert (mp, msgs.msgs[msgnum]))
 296                 done (1);
 297         seq_setprev (mp);       /* set the previous-sequence */
 298
 299         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 300             adios (NULL, "out of memory");
 301         ctp = cts;
 302
 303         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 304             if (is_selected(mp, msgnum)) {
 305                 char *msgnam;
 306
 307                 msgnam = m_name (msgnum);
 308                 if ((ct = parse_mime (msgnam)))
 309                     *ctp++ = ct;
 310             }
 311         }
 312     }
 313
 314     if (!*cts)
 315         done (1);
 316
 317     userrs = 1;
 318     SIGNAL (SIGQUIT, quitser);
 319     SIGNAL (SIGPIPE, pipeser);
 320
 321     /*
 322      * Get the associated umask for the relevant contents.
 323      */
 324     for (ctp = cts; *ctp; ctp++) {
 325         struct stat st;
 326
 327         ct = *ctp;
 328         if (type_ok (ct, 1) && !ct->c_umask) {
 329             if (stat (ct->c_file, &st) != NOTOK)
 330                 ct->c_umask = ~(st.st_mode & 0777);
 331             else
 332                 ct->c_umask = ~m_gmprot();
 333         }
 334     }
 335
 336     /*
 337      * List the message content
 338      */
 339     list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 340
 341     /* Now free all the structures for the content */
 342     for (ctp = cts; *ctp; ctp++)
 343         free_content (*ctp);
 344
 345     free ((char *) cts);
 346     cts = NULL;
 347
 348     /* If reading from a folder, do some updating */
 349     if (mp) {
 350         context_replace (pfolder, folder);/* update current folder  */
 351         if (chgflag)
 352             seq_setcur (mp, mp->hghsel);  /* update current message */
 353         seq_save (mp);                    /* synchronize sequences  */
 354         context_save ();                  /* save the context file  */
 355     }
 356
 357     done (0);
 358     return 1;
 359 }
 360
 361
 362 static void
 363 pipeser (int i)
 364 {
 365     if (i == SIGQUIT) {
 366         fflush (stdout);
 367         fprintf (stderr, "\n");
 368         fflush (stderr);
 369     }
 370
 371     done (1);
 372     /* NOTREACHED */
 373 }