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