git.marmaro.de Git - mmh/blob - 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
  53 /*
  54 ** switches for debugging
  55 */
  56 #define DEBUGSW  15
  57         { "debug", -5 },
  58         { NULL, 0 }
  59 };
  60
  61
  62 /* mhparse.c */
  63 extern char *tmp;  /* directory to place temp files */
  64
  65 /* mhcachesbr.c */
  66 extern int rcachesw;
  67 extern int wcachesw;
  68 extern char *cache_public;
  69 extern char *cache_private;
  70
  71 /* mhmisc.c */
  72 extern int npart;
  73 extern int ntype;
  74 extern char *parts[NPARTS + 1];
  75 extern char *types[NTYPES + 1];
  76 extern int userrs;
  77
  78 /*
  79 ** This is currently needed to keep mhparse happy.
  80 ** This needs to be changed.
  81 */
  82 pid_t xpid  = 0;
  83
  84 int debugsw = 0;
  85 int verbosw = 0;
  86
  87 #define quitser pipeser
  88
  89 /* mhparse.c */
  90 CT parse_mime(char *);
  91
  92 /* mhmisc.c */
  93 int part_ok(CT, int);
  94 int type_ok(CT, int);
  95 void set_endian(void);
  96 void flush_errors(void);
  97
  98 /* mhlistsbr.c */
  99 void list_all_messages(CT *, int, int, int, int);
 100
 101 /* mhfree.c */
 102 void free_content(CT);
 103 extern CT *cts;
 104 void freects_done(int) NORETURN;
 105
 106 /*
 107 ** static prototypes
 108 */
 109 static RETSIGTYPE pipeser(int);
 110
 111
 112 int
 113 main(int argc, char **argv)
 114 {
 115         int sizesw = 1, headsw = 1;
 116         int msgnum, *icachesw;
 117         char *cp, *file = NULL, *folder = NULL;
 118         char *maildir, buf[100], **argp;
 119         char **arguments;
 120         struct msgs_array msgs = { 0, 0, NULL };
 121         struct msgs *mp = NULL;
 122         CT ct, *ctp;
 123
 124         done=freects_done;
 125
 126 #ifdef LOCALE
 127         setlocale(LC_ALL, "");
 128 #endif
 129         invo_name = mhbasename(argv[0]);
 130
 131         /* read user profile/context */
 132         context_read();
 133
 134         arguments = getarguments(invo_name, argc, argv, 1);
 135         argp = arguments;
 136
 137         /*
 138         ** Parse arguments
 139         */
 140         while ((cp = *argp++)) {
 141                 if (*cp == '-') {
 142                         switch (smatch(++cp, switches)) {
 143                         case AMBIGSW:
 144                                 ambigsw(cp, switches);
 145                                 done(1);
 146                         case UNKWNSW:
 147                                 adios(NULL, "-%s unknown", cp);
 148
 149                         case HELPSW:
 150                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
 151                                 print_help(buf, switches, 1);
 152                                 done(1);
 153                         case VERSIONSW:
 154                                 print_version(invo_name);
 155                                 done(1);
 156
 157                         case RCACHESW:
 158                                 icachesw = &rcachesw;
 159                                 goto do_cache;
 160                         case WCACHESW:
 161                                 icachesw = &wcachesw;
 162 do_cache:
 163                                 if (!(cp = *argp++) || *cp == '-')
 164                                         adios(NULL, "missing argument to %s", argp[-2]);
 165                                 switch (*icachesw = smatch(cp, caches)) {
 166                                 case AMBIGSW:
 167                                         ambigsw(cp, caches);
 168                                         done(1);
 169                                 case UNKWNSW:
 170                                         adios(NULL, "%s unknown", cp);
 171                                 default:
 172                                         break;
 173                                 }
 174                                 continue;
 175
 176                         case CHECKSW:
 177                                 checksw++;
 178                                 continue;
 179                         case NCHECKSW:
 180                                 checksw = 0;
 181                                 continue;
 182
 183                         case HEADSW:
 184                                 headsw = 1;
 185                                 continue;
 186                         case NHEADSW:
 187                                 headsw = 0;
 188                                 continue;
 189
 190                         case SIZESW:
 191                                 sizesw = 1;
 192                                 continue;
 193                         case NSIZESW:
 194                                 sizesw = 0;
 195                                 continue;
 196
 197                         case PARTSW:
 198                                 if (!(cp = *argp++) || *cp == '-')
 199                                         adios(NULL, "missing argument to %s",
 200                                                         argp[-2]);
 201                                 if (npart >= NPARTS)
 202                                         adios(NULL, "too many parts (starting with %s), %d max", cp, NPARTS);
 203                                 parts[npart++] = cp;
 204                                 continue;
 205
 206                         case TYPESW:
 207                                 if (!(cp = *argp++) || *cp == '-')
 208                                         adios(NULL, "missing argument to %s",
 209                                                         argp[-2]);
 210                                 if (ntype >= NTYPES)
 211                                         adios(NULL, "too many types (starting with %s), %d max", cp, NTYPES);
 212                                 types[ntype++] = cp;
 213                                 continue;
 214
 215                         case FILESW:
 216                                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 217                                         adios(NULL, "missing argument to %s",
 218                                                         argp[-2]);
 219                                 file = *cp == '-' ? cp : getcpy(expanddir(cp));
 220                                 continue;
 221
 222                         case VERBSW:
 223                                 verbosw = 1;
 224                                 continue;
 225                         case NVERBSW:
 226                                 verbosw = 0;
 227                                 continue;
 228                         case DEBUGSW:
 229                                 debugsw = 1;
 230                                 continue;
 231                         }
 232                 }
 233                 if (*cp == '+' || *cp == '@') {
 234                         if (folder)
 235                                 adios(NULL, "only one folder at a time!");
 236                         else
 237                                 folder = getcpy(expandfol(cp));
 238                 } else
 239                         app_msgarg(&msgs, cp);
 240         }
 241
 242         /* null terminate the list of acceptable parts/types */
 243         parts[npart] = NULL;
 244         types[ntype] = NULL;
 245
 246         set_endian();
 247
 248         /* Check for public cache location */
 249         if ((cache_public = context_find(nmhcache)) && *cache_public != '/')
 250                 cache_public = NULL;
 251
 252         /* Check for private cache location */
 253         if (!(cache_private = context_find(nmhprivcache)))
 254                 cache_private = ".cache";
 255         cache_private = getcpy(toabsdir(cache_private));
 256
 257         /*
 258         ** Check for storage directory.  If specified,
 259         ** then store temporary files there.  Else we
 260         ** store them in standard nmh directory.
 261         */
 262         if ((cp = context_find(nmhstorage)) && *cp)
 263                 tmp = concat(cp, "/", invo_name, NULL);
 264         else
 265                 tmp = getcpy(toabsdir(invo_name));
 266
 267         if (file && msgs.size)
 268                 adios(NULL, "cannot specify msg and file at same time!");
 269
 270         /*
 271         ** check if message is coming from file
 272         */
 273         if (file) {
 274                 if (!(cts = (CT *) calloc((size_t) 2, sizeof(*cts))))
 275                         adios(NULL, "out of memory");
 276                 ctp = cts;
 277
 278                 if ((ct = parse_mime(file)))
 279                         *ctp++ = ct;
 280         } else {
 281                 /*
 282                 ** message(s) are coming from a folder
 283                 */
 284                 if (!msgs.size)
 285                         app_msgarg(&msgs, seq_cur);
 286                 if (!folder)
 287                         folder = getcurfol();
 288                 maildir = toabsdir(folder);
 289
 290                 if (chdir(maildir) == NOTOK)
 291                         adios(maildir, "unable to change directory to");
 292
 293                 /* read folder and create message structure */
 294                 if (!(mp = folder_read(folder)))
 295                         adios(NULL, "unable to read folder %s", folder);
 296
 297                 /* check for empty folder */
 298                 if (mp->nummsg == 0)
 299                         adios(NULL, "no messages in %s", folder);
 300
 301                 /* parse all the message ranges/sequences and set SELECTED */
 302                 for (msgnum = 0; msgnum < msgs.size; msgnum++)
 303                         if (!m_convert(mp, msgs.msgs[msgnum]))
 304                                 done (1);
 305                 seq_setprev(mp);  /* set the previous-sequence */
 306
 307                 if (!(cts = (CT *) calloc((size_t) (mp->numsel + 1),
 308                                 sizeof(*cts))))
 309                         adios(NULL, "out of memory");
 310                 ctp = cts;
 311
 312                 for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 313                         if (is_selected(mp, msgnum)) {
 314                                 char *msgnam;
 315
 316                                 msgnam = m_name(msgnum);
 317                                 if ((ct = parse_mime(msgnam)))
 318                                         *ctp++ = ct;
 319                         }
 320                 }
 321         }
 322
 323         if (!*cts)
 324                 done(1);
 325
 326         userrs = 1;
 327         SIGNAL(SIGQUIT, quitser);
 328         SIGNAL(SIGPIPE, pipeser);
 329
 330         /*
 331         ** Get the associated umask for the relevant contents.
 332         */
 333         for (ctp = cts; *ctp; ctp++) {
 334                 struct stat st;
 335
 336                 ct = *ctp;
 337                 if (type_ok(ct, 1) && !ct->c_umask) {
 338                         if (stat(ct->c_file, &st) != NOTOK)
 339                                 ct->c_umask = ~(st.st_mode & 0777);
 340                         else
 341                                 ct->c_umask = ~m_gmprot();
 342                 }
 343         }
 344
 345         /*
 346         ** List the message content
 347         */
 348         list_all_messages(cts, headsw, sizesw, verbosw, debugsw);
 349
 350         /* Now free all the structures for the content */
 351         for (ctp = cts; *ctp; ctp++)
 352                 free_content(*ctp);
 353
 354         free((char *) cts);
 355         cts = NULL;
 356
 357         /* If reading from a folder, do some updating */
 358         if (mp) {
 359                 context_replace(curfolder, folder); /* update current folder */
 360                 seq_setcur(mp, mp->hghsel);  /* update current message */
 361                 seq_save(mp);  /* synchronize sequences  */
 362                 context_save();  /* save the context file  */
 363         }
 364
 365         done(0);
 366         return 1;
 367 }
 368
 369
 370 static RETSIGTYPE
 371 pipeser(int i)
 372 {
 373         if (i == SIGQUIT) {
 374                 unlink("core");
 375                 fflush(stdout);
 376                 fprintf(stderr, "\n");
 377                 fflush(stderr);
 378         }
 379
 380         done(1);
 381         /* NOTREACHED */
 382 }