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