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

   1 /* mhlist.c -- list the contents of MIME messages
   2  *
   3  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include <h/mh.h>
   9 #include <fcntl.h>
  10 #include <h/signals.h>
  11 #include <h/md5.h>
  12 #include <h/mts.h>
  13 #include <h/tws.h>
  14 #include <h/mime.h>
  15 #include <h/mhparse.h>
  16 #include <h/mhcachesbr.h>
  17 #include <h/utils.h>
  18 #include "mhfree.h"
  19
  20 #define MHLIST_SWITCHES \
  21     X("check", 0, CHECKSW) \
  22     X("nocheck", 0, NCHECKSW) \
  23     X("headers", 0, HEADSW) \
  24     X("noheaders", 0, NHEADSW) \
  25     X("realsize", 0, SIZESW) \
  26     X("norealsize", 0, NSIZESW) \
  27     X("verbose", 0, VERBSW) \
  28     X("noverbose", 0, NVERBSW) \
  29     X("disposition", 0, DISPOSW) \
  30     X("nodisposition", 0, NDISPOSW) \
  31     X("file file", 0, FILESW) \
  32     X("part number", 0, PARTSW) \
  33     X("type content", 0, TYPESW) \
  34     X("prefer content", 0, PREFERSW) \
  35     X("rcache policy", 0, RCACHESW) \
  36     X("wcache policy", 0, WCACHESW) \
  37     X("changecur", 0, CHGSW) \
  38     X("nochangecur", 0, NCHGSW) \
  39     X("version", 0, VERSIONSW) \
  40     X("help", 0, HELPSW) \
  41     X("debug", -5, DEBUGSW) \
  42
  43 #define X(sw, minchars, id) id,
  44 DEFINE_SWITCH_ENUM(MHLIST);
  45 #undef X
  46
  47 #define X(sw, minchars, id) { sw, minchars, id },
  48 DEFINE_SWITCH_ARRAY(MHLIST, switches);
  49 #undef X
  50
  51
  52 /* mhmisc.c */
  53 extern int npart;
  54 extern int ntype;
  55 extern char *parts[NPARTS + 1];
  56 extern char *types[NTYPES + 1];
  57 extern int userrs;
  58
  59 /* mhparse.c */
  60 extern char *preferred_types[];
  61 extern  char *preferred_subtypes[];
  62 extern int npreferred;
  63
  64 /*
  65  * This is currently needed to keep mhparse happy.
  66  * This needs to be changed.
  67  */
  68 int debugsw = 0;
  69
  70 #define quitser pipeser
  71
  72 /* mhparse.c */
  73 CT parse_mime (char *);
  74
  75 /* mhmisc.c */
  76 int part_ok (CT);
  77 int type_ok (CT, int);
  78 void flush_errors (void);
  79
  80 /*
  81  * static prototypes
  82  */
  83 static void pipeser (int);
  84
  85
  86 int
  87 main (int argc, char **argv)
  88 {
  89     int sizesw = 1, headsw = 1, chgflag = 1, verbosw = 0, dispo = 0;
  90     int msgnum, *icachesw;
  91     char *cp, *file = NULL, *folder = NULL;
  92     char *maildir, buf[100], **argp;
  93     char **arguments;
  94     struct msgs_array msgs = { 0, 0, NULL };
  95     struct msgs *mp = NULL;
  96     CT ct, *ctp;
  97
  98     if (nmh_init(argv[0], 1)) { return 1; }
  99
 100     done=freects_done;
 101
 102     arguments = getarguments (invo_name, argc, argv, 1);
 103     argp = arguments;
 104
 105     /*
 106      * Parse arguments
 107      */
 108     while ((cp = *argp++)) {
 109         if (*cp == '-') {
 110             switch (smatch (++cp, switches)) {
 111             case AMBIGSW:
 112                 ambigsw (cp, switches);
 113                 done (1);
 114             case UNKWNSW:
 115                 adios (NULL, "-%s unknown", cp);
 116
 117             case HELPSW:
 118                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 119                         invo_name);
 120                 print_help (buf, switches, 1);
 121                 done (0);
 122             case VERSIONSW:
 123                 print_version(invo_name);
 124                 done (0);
 125
 126             case RCACHESW:
 127                 icachesw = &rcachesw;
 128                 goto do_cache;
 129             case WCACHESW:
 130                 icachesw = &wcachesw;
 131 do_cache:
 132                 if (!(cp = *argp++) || *cp == '-')
 133                     adios (NULL, "missing argument to %s", argp[-2]);
 134                 switch (*icachesw = smatch (cp, cache_policy)) {
 135                 case AMBIGSW:
 136                     ambigsw (cp, cache_policy);
 137                     done (1);
 138                 case UNKWNSW:
 139                     adios (NULL, "%s unknown", cp);
 140                 default:
 141                     break;
 142                 }
 143                 continue;
 144
 145             case CHECKSW:
 146                 checksw++;
 147                 continue;
 148             case NCHECKSW:
 149                 checksw = 0;
 150                 continue;
 151
 152             case HEADSW:
 153                 headsw = 1;
 154                 continue;
 155             case NHEADSW:
 156                 headsw = 0;
 157                 continue;
 158
 159             case SIZESW:
 160                 sizesw = 1;
 161                 continue;
 162             case NSIZESW:
 163                 sizesw = 0;
 164                 continue;
 165
 166             case PARTSW:
 167                 if (!(cp = *argp++) || *cp == '-')
 168                     adios (NULL, "missing argument to %s", argp[-2]);
 169                 if (npart >= NPARTS)
 170                     adios (NULL, "too many parts (starting with %s), %d max",
 171                            cp, NPARTS);
 172                 parts[npart++] = cp;
 173                 continue;
 174
 175             case TYPESW:
 176                 if (!(cp = *argp++) || *cp == '-')
 177                     adios (NULL, "missing argument to %s", argp[-2]);
 178                 if (ntype >= NTYPES)
 179                     adios (NULL, "too many types (starting with %s), %d max",
 180                            cp, NTYPES);
 181                 types[ntype++] = cp;
 182                 continue;
 183
 184             case PREFERSW:
 185                 if (!(cp = *argp++) || *cp == '-')
 186                     adios (NULL, "missing argument to %s", argp[-2]);
 187                 if (npreferred >= NPREFS)
 188                     adios (NULL, "too many preferred types (starting with %s), %d max",
 189                            cp, NPREFS);
 190                 preferred_types[npreferred] = cp;
 191                 cp = strchr(cp, '/');
 192                 if (cp) *cp++ = '\0';
 193                 preferred_subtypes[npreferred++] = cp;
 194                 continue;
 195
 196             case FILESW:
 197                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 198                     adios (NULL, "missing argument to %s", argp[-2]);
 199                 file = *cp == '-' ? cp : path (cp, TFILE);
 200                 continue;
 201
 202             case CHGSW:
 203                 chgflag++;
 204                 continue;
 205             case NCHGSW:
 206                 chgflag = 0;
 207                 continue;
 208
 209             case VERBSW:
 210                 verbosw = 1;
 211                 continue;
 212             case NVERBSW:
 213                 verbosw = 0;
 214                 continue;
 215             case DISPOSW:
 216                 dispo = 1;
 217                 continue;
 218             case NDISPOSW:
 219                 dispo = 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     if (!context_find ("path"))
 249         free (path ("./", TFOLDER));
 250
 251     if (file && msgs.size)
 252         adios (NULL, "cannot specify msg and file at same time!");
 253
 254     /*
 255      * check if message is coming from file
 256      */
 257     if (file) {
 258         cts = mh_xcalloc(2, sizeof *cts);
 259         ctp = cts;
 260
 261         if ((ct = parse_mime (file)))
 262             *ctp++ = ct;
 263     } else {
 264         /*
 265          * message(s) are coming from a folder
 266          */
 267         if (!msgs.size)
 268             app_msgarg(&msgs, "cur");
 269         if (!folder)
 270             folder = getfolder (1);
 271         maildir = m_maildir (folder);
 272
 273         if (chdir (maildir) == NOTOK)
 274             adios (maildir, "unable to change directory to");
 275
 276         /* read folder and create message structure */
 277         if (!(mp = folder_read (folder, 0)))
 278             adios (NULL, "unable to read folder %s", folder);
 279
 280         /* check for empty folder */
 281         if (mp->nummsg == 0)
 282             adios (NULL, "no messages in %s", folder);
 283
 284         /* parse all the message ranges/sequences and set SELECTED */
 285         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 286             if (!m_convert (mp, msgs.msgs[msgnum]))
 287                 done (1);
 288         seq_setprev (mp);       /* set the previous-sequence */
 289
 290         cts = mh_xcalloc(mp->numsel + 1, sizeof *cts);
 291         ctp = cts;
 292
 293         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 294             if (is_selected(mp, msgnum)) {
 295                 char *msgnam;
 296
 297                 msgnam = m_name (msgnum);
 298                 if ((ct = parse_mime (msgnam)))
 299                     *ctp++ = ct;
 300             }
 301         }
 302     }
 303
 304     if (!*cts)
 305         done (1);
 306
 307     userrs = 1;
 308     SIGNAL (SIGQUIT, quitser);
 309     SIGNAL (SIGPIPE, pipeser);
 310
 311     /*
 312      * Get the associated umask for the relevant contents.
 313      */
 314     for (ctp = cts; *ctp; ctp++) {
 315         struct stat st;
 316
 317         ct = *ctp;
 318         if (type_ok (ct, 1) && !ct->c_umask) {
 319             if (stat (ct->c_file, &st) != NOTOK)
 320                 ct->c_umask = ~(st.st_mode & 0777);
 321             else
 322                 ct->c_umask = ~m_gmprot();
 323         }
 324     }
 325
 326     /*
 327      * List the message content
 328      */
 329     list_all_messages (cts, headsw, sizesw, verbosw, debugsw, dispo);
 330
 331     /* Now free all the structures for the content */
 332     for (ctp = cts; *ctp; ctp++)
 333         free_content (*ctp);
 334
 335     free(cts);
 336     cts = NULL;
 337
 338     /* If reading from a folder, do some updating */
 339     if (mp) {
 340         context_replace (pfolder, folder);/* update current folder  */
 341         if (chgflag)
 342             seq_setcur (mp, mp->hghsel);  /* update current message */
 343         seq_save (mp);                    /* synchronize sequences  */
 344         context_save ();                  /* save the context file  */
 345     }
 346
 347     done (0);
 348     return 1;
 349 }
 350
 351
 352 static void
 353 pipeser (int i)
 354 {
 355     if (i == SIGQUIT) {
 356         fflush (stdout);
 357         fprintf (stderr, "\n");
 358         fflush (stderr);
 359     }
 360
 361     done (1);
 362     /* NOTREACHED */
 363 }