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