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/mts.h>
  16 #include <h/tws.h>
  17 #include <h/mime.h>
  18 #include <h/mhparse.h>
  19 #include <h/mhcachesbr.h>
  20 #include <h/utils.h>
  21
  22 #ifdef HAVE_SYS_WAIT_H
  23 # include <sys/wait.h>
  24 #endif
  25
  26 static struct swit switches[] = {
  27 #define CHECKSW  0
  28         { "check", 0 },
  29 #define NCHECKSW  1
  30         { "nocheck", 0 },
  31 #define HEADSW  2
  32         { "headers", 0 },
  33 #define NHEADSW  3
  34         { "noheaders", 0 },
  35 #define SIZESW  4
  36         { "realsize", 0 },
  37 #define NSIZESW  5
  38         { "norealsize", 0 },
  39 #define VERBSW  6
  40         { "verbose", 0 },
  41 #define NVERBSW  7
  42         { "noverbose", 0 },
  43 #define FILESW  8  /* interface from show */
  44         { "file file", 0 },
  45 #define PARTSW  9
  46         { "part number", 0 },
  47 #define TYPESW  10
  48         { "type content", 0 },
  49 #define RCACHESW  11
  50         { "rcache policy", 0 },
  51 #define WCACHESW  12
  52         { "wcache policy", 0 },
  53 #define VERSIONSW  13
  54         { "version", 0 },
  55 #define HELPSW  14
  56         { "help", 0 },
  57
  58 /*
  59 ** switches for debugging
  60 */
  61 #define DEBUGSW  15
  62         { "debug", -5 },
  63         { NULL, 0 }
  64 };
  65
  66
  67 /* mhparse.c */
  68 extern char *tmp;  /* directory to place temp files */
  69
  70 /* mhcachesbr.c */
  71 extern int rcachesw;
  72 extern int wcachesw;
  73 extern char *cache_public;
  74 extern char *cache_private;
  75
  76 /* mhmisc.c */
  77 extern int npart;
  78 extern int ntype;
  79 extern char *parts[NPARTS + 1];
  80 extern char *types[NTYPES + 1];
  81 extern int userrs;
  82
  83 /*
  84 ** This is currently needed to keep mhparse happy.
  85 ** This needs to be changed.
  86 */
  87 pid_t xpid  = 0;
  88
  89 int debugsw = 0;
  90 int verbosw = 0;
  91
  92 #define quitser pipeser
  93
  94 /* mhparse.c */
  95 CT parse_mime(char *);
  96
  97 /* mhmisc.c */
  98 int part_ok(CT, int);
  99 int type_ok(CT, int);
 100 void set_endian(void);
 101 void flush_errors(void);
 102
 103 /* mhlistsbr.c */
 104 void list_all_messages(CT *, int, int, int, int);
 105
 106 /* mhfree.c */
 107 void free_content(CT);
 108 extern CT *cts;
 109 void freects_done(int) NORETURN;
 110
 111 /*
 112 ** static prototypes
 113 */
 114 static RETSIGTYPE pipeser(int);
 115
 116
 117 int
 118 main(int argc, char **argv)
 119 {
 120         int sizesw = 1, headsw = 1;
 121         int msgnum, *icachesw;
 122         char *cp, *file = NULL, *folder = NULL;
 123         char *maildir, buf[100], **argp;
 124         char **arguments;
 125         struct msgs_array msgs = { 0, 0, NULL };
 126         struct msgs *mp = NULL;
 127         CT ct, *ctp;
 128
 129         done=freects_done;
 130
 131 #ifdef LOCALE
 132         setlocale(LC_ALL, "");
 133 #endif
 134         invo_name = mhbasename(argv[0]);
 135
 136         /* read user profile/context */
 137         context_read();
 138
 139         arguments = getarguments(invo_name, argc, argv, 1);
 140         argp = arguments;
 141
 142         /*
 143         ** Parse arguments
 144         */
 145         while ((cp = *argp++)) {
 146                 if (*cp == '-') {
 147                         switch (smatch(++cp, switches)) {
 148                         case AMBIGSW:
 149                                 ambigsw(cp, switches);
 150                                 done(1);
 151                         case UNKWNSW:
 152                                 adios(NULL, "-%s unknown", cp);
 153
 154                         case HELPSW:
 155                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
 156                                 print_help(buf, switches, 1);
 157                                 done(1);
 158                         case VERSIONSW:
 159                                 print_version(invo_name);
 160                                 done(1);
 161
 162                         case RCACHESW:
 163                                 icachesw = &rcachesw;
 164                                 goto do_cache;
 165                         case WCACHESW:
 166                                 icachesw = &wcachesw;
 167 do_cache:
 168                                 if (!(cp = *argp++) || *cp == '-')
 169                                         adios(NULL, "missing argument to %s", argp[-2]);
 170                                 switch (*icachesw = smatch(cp, caches)) {
 171                                 case AMBIGSW:
 172                                         ambigsw(cp, caches);
 173                                         done(1);
 174                                 case UNKWNSW:
 175                                         adios(NULL, "%s unknown", cp);
 176                                 default:
 177                                         break;
 178                                 }
 179                                 continue;
 180
 181                         case CHECKSW:
 182                                 checksw++;
 183                                 continue;
 184                         case NCHECKSW:
 185                                 checksw = 0;
 186                                 continue;
 187
 188                         case HEADSW:
 189                                 headsw = 1;
 190                                 continue;
 191                         case NHEADSW:
 192                                 headsw = 0;
 193                                 continue;
 194
 195                         case SIZESW:
 196                                 sizesw = 1;
 197                                 continue;
 198                         case NSIZESW:
 199                                 sizesw = 0;
 200                                 continue;
 201
 202                         case PARTSW:
 203                                 if (!(cp = *argp++) || *cp == '-')
 204                                         adios(NULL, "missing argument to %s",
 205                                                         argp[-2]);
 206                                 if (npart >= NPARTS)
 207                                         adios(NULL, "too many parts (starting with %s), %d max", cp, NPARTS);
 208                                 parts[npart++] = cp;
 209                                 continue;
 210
 211                         case TYPESW:
 212                                 if (!(cp = *argp++) || *cp == '-')
 213                                         adios(NULL, "missing argument to %s",
 214                                                         argp[-2]);
 215                                 if (ntype >= NTYPES)
 216                                         adios(NULL, "too many types (starting with %s), %d max", cp, NTYPES);
 217                                 types[ntype++] = cp;
 218                                 continue;
 219
 220                         case FILESW:
 221                                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 222                                         adios(NULL, "missing argument to %s",
 223                                                         argp[-2]);
 224                                 file = *cp == '-' ? cp : getcpy(expanddir(cp));
 225                                 continue;
 226
 227                         case VERBSW:
 228                                 verbosw = 1;
 229                                 continue;
 230                         case NVERBSW:
 231                                 verbosw = 0;
 232                                 continue;
 233                         case DEBUGSW:
 234                                 debugsw = 1;
 235                                 continue;
 236                         }
 237                 }
 238                 if (*cp == '+' || *cp == '@') {
 239                         if (folder)
 240                                 adios(NULL, "only one folder at a time!");
 241                         else
 242                                 folder = getcpy(expandfol(cp));
 243                 } else
 244                         app_msgarg(&msgs, cp);
 245         }
 246
 247         /* null terminate the list of acceptable parts/types */
 248         parts[npart] = NULL;
 249         types[ntype] = NULL;
 250
 251         set_endian();
 252
 253         /* Check for public cache location */
 254         if ((cache_public = context_find(nmhcache)) && *cache_public != '/')
 255                 cache_public = NULL;
 256
 257         /* Check for private cache location */
 258         if (!(cache_private = context_find(nmhprivcache)))
 259                 cache_private = ".cache";
 260         cache_private = getcpy(toabsdir(cache_private));
 261
 262         /*
 263         ** Check for storage directory.  If specified,
 264         ** then store temporary files there.  Else we
 265         ** store them in standard nmh directory.
 266         */
 267         if ((cp = context_find(nmhstorage)) && *cp)
 268                 tmp = concat(cp, "/", invo_name, NULL);
 269         else
 270                 tmp = getcpy(toabsdir(invo_name));
 271
 272         if (file && msgs.size)
 273                 adios(NULL, "cannot specify msg and file at same time!");
 274
 275         /*
 276         ** check if message is coming from file
 277         */
 278         if (file) {
 279                 if (!(cts = (CT *) calloc((size_t) 2, sizeof(*cts))))
 280                         adios(NULL, "out of memory");
 281                 ctp = cts;
 282
 283                 if ((ct = parse_mime(file)));
 284                         *ctp++ = ct;
 285         } else {
 286                 /*
 287                 ** message(s) are coming from a folder
 288                 */
 289                 if (!msgs.size)
 290                         app_msgarg(&msgs, seq_cur);
 291                 if (!folder)
 292                         folder = getcurfol();
 293                 maildir = toabsdir(folder);
 294
 295                 if (chdir(maildir) == NOTOK)
 296                         adios(maildir, "unable to change directory to");
 297
 298                 /* read folder and create message structure */
 299                 if (!(mp = folder_read(folder)))
 300                         adios(NULL, "unable to read folder %s", folder);
 301
 302                 /* check for empty folder */
 303                 if (mp->nummsg == 0)
 304                         adios(NULL, "no messages in %s", folder);
 305
 306                 /* parse all the message ranges/sequences and set SELECTED */
 307                 for (msgnum = 0; msgnum < msgs.size; msgnum++)
 308                         if (!m_convert(mp, msgs.msgs[msgnum]))
 309                                 done (1);
 310                 seq_setprev(mp);  /* set the previous-sequence */
 311
 312                 if (!(cts = (CT *) calloc((size_t) (mp->numsel + 1),
 313                                 sizeof(*cts))))
 314                         adios(NULL, "out of memory");
 315                 ctp = cts;
 316
 317                 for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 318                         if (is_selected(mp, msgnum)) {
 319                                 char *msgnam;
 320
 321                                 msgnam = m_name(msgnum);
 322                                 if ((ct = parse_mime(msgnam)))
 323                                         *ctp++ = ct;
 324                         }
 325                 }
 326         }
 327
 328         if (!*cts)
 329                 done(1);
 330
 331         userrs = 1;
 332         SIGNAL(SIGQUIT, quitser);
 333         SIGNAL(SIGPIPE, pipeser);
 334
 335         /*
 336         ** Get the associated umask for the relevant contents.
 337         */
 338         for (ctp = cts; *ctp; ctp++) {
 339                 struct stat st;
 340
 341                 ct = *ctp;
 342                 if (type_ok(ct, 1) && !ct->c_umask) {
 343                         if (stat(ct->c_file, &st) != NOTOK)
 344                                 ct->c_umask = ~(st.st_mode & 0777);
 345                         else
 346                                 ct->c_umask = ~m_gmprot();
 347                 }
 348         }
 349
 350         /*
 351         ** List the message content
 352         */
 353         list_all_messages(cts, headsw, sizesw, verbosw, debugsw);
 354
 355         /* Now free all the structures for the content */
 356         for (ctp = cts; *ctp; ctp++)
 357                 free_content(*ctp);
 358
 359         free((char *) cts);
 360         cts = NULL;
 361
 362         /* If reading from a folder, do some updating */
 363         if (mp) {
 364                 context_replace(curfolder, folder); /* update current folder */
 365                 seq_setcur(mp, mp->hghsel);  /* update current message */
 366                 seq_save(mp);  /* synchronize sequences  */
 367                 context_save();  /* save the context file  */
 368         }
 369
 370         done(0);
 371         return 1;
 372 }
 373
 374
 375 static RETSIGTYPE
 376 pipeser(int i)
 377 {
 378         if (i == SIGQUIT) {
 379                 unlink("core");
 380                 fflush(stdout);
 381                 fprintf(stderr, "\n");
 382                 fflush(stderr);
 383         }
 384
 385         done(1);
 386         /* NOTREACHED */
 387 }