git.marmaro.de Git - mmh/blob - uip/mhlist.c

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