diplodocus.org Git - nmh/blob - uip/mhlist.c

   1
   2 /*
   3  * mhlist.c -- list the contents of MIME messages
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <fcntl.h>
  12 #include <h/signals.h>
  13 #include <h/md5.h>
  14 #include <errno.h>
  15 #include <signal.h>
  16 #include <h/mts.h>
  17 #include <h/tws.h>
  18 #include <h/mime.h>
  19 #include <h/mhparse.h>
  20 #include <h/mhcachesbr.h>
  21 #include <h/utils.h>
  22
  23 static struct swit switches[] = {
  24 #define CHECKSW                 0
  25     { "check", 0 },
  26 #define NCHECKSW                1
  27     { "nocheck", 0 },
  28 #define HEADSW                  2
  29     { "headers", 0 },
  30 #define NHEADSW                 3
  31     { "noheaders", 0 },
  32 #define SIZESW                  4
  33     { "realsize", 0 },
  34 #define NSIZESW                 5
  35     { "norealsize", 0 },
  36 #define VERBSW                  6
  37     { "verbose", 0 },
  38 #define NVERBSW                 7
  39     { "noverbose", 0 },
  40 #define FILESW                  8       /* interface from show */
  41     { "file file", 0 },
  42 #define PARTSW                  9
  43     { "part number", 0 },
  44 #define TYPESW                 10
  45     { "type content", 0 },
  46 #define RCACHESW               11
  47     { "rcache policy", 0 },
  48 #define WCACHESW               12
  49     { "wcache policy", 0 },
  50 #define VERSIONSW              13
  51     { "version", 0 },
  52 #define HELPSW                 14
  53     { "help", 0 },
  54
  55 /*
  56  * switches for debugging
  57  */
  58 #define DEBUGSW                15
  59     { "debug", -5 },
  60     { NULL, 0 }
  61 };
  62
  63
  64 /* mhparse.c */
  65 extern char *tmp;       /* directory to place temp files */
  66
  67 /* mhcachesbr.c */
  68 extern int rcachesw;
  69 extern int wcachesw;
  70 extern char *cache_public;
  71 extern char *cache_private;
  72
  73 /* mhmisc.c */
  74 extern int npart;
  75 extern int ntype;
  76 extern char *parts[NPARTS + 1];
  77 extern char *types[NTYPES + 1];
  78 extern int userrs;
  79
  80 /*
  81  * This is currently needed to keep mhparse happy.
  82  * This needs to be changed.
  83  */
  84 pid_t xpid  = 0;
  85
  86 int debugsw = 0;
  87 int verbosw = 0;
  88
  89 #define quitser pipeser
  90
  91 /* mhparse.c */
  92 CT parse_mime (char *);
  93
  94 /* mhmisc.c */
  95 int part_ok (CT, int);
  96 int type_ok (CT, int);
  97 void set_endian (void);
  98 void flush_errors (void);
  99
 100 /* mhlistsbr.c */
 101 void list_all_messages (CT *, int, int, int, int);
 102
 103 /* mhfree.c */
 104 void free_content (CT);
 105 extern CT *cts;
 106 void freects_done (int) NORETURN;
 107
 108 /*
 109  * static prototypes
 110  */
 111 static RETSIGTYPE pipeser (int);
 112
 113
 114 int
 115 main (int argc, char **argv)
 116 {
 117     int sizesw = 1, headsw = 1;
 118     int msgnum, *icachesw;
 119     char *cp, *file = NULL, *folder = NULL;
 120     char *maildir, buf[100], **argp;
 121     char **arguments;
 122     struct msgs_array msgs = { 0, 0, NULL };
 123     struct msgs *mp = NULL;
 124     CT ct, *ctp;
 125
 126     done=freects_done;
 127
 128 #ifdef LOCALE
 129     setlocale(LC_ALL, "");
 130 #endif
 131     invo_name = r1bindex (argv[0], '/');
 132
 133     /* read user profile/context */
 134     context_read();
 135
 136     arguments = getarguments (invo_name, argc, argv, 1);
 137     argp = arguments;
 138
 139     /*
 140      * Parse arguments
 141      */
 142     while ((cp = *argp++)) {
 143         if (*cp == '-') {
 144             switch (smatch (++cp, switches)) {
 145             case AMBIGSW:
 146                 ambigsw (cp, switches);
 147                 done (1);
 148             case UNKWNSW:
 149                 adios (NULL, "-%s unknown", cp);
 150
 151             case HELPSW:
 152                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 153                         invo_name);
 154                 print_help (buf, switches, 1);
 155                 done (1);
 156             case VERSIONSW:
 157                 print_version(invo_name);
 158                 done (1);
 159
 160             case RCACHESW:
 161                 icachesw = &rcachesw;
 162                 goto do_cache;
 163             case WCACHESW:
 164                 icachesw = &wcachesw;
 165 do_cache:
 166                 if (!(cp = *argp++) || *cp == '-')
 167                     adios (NULL, "missing argument to %s", argp[-2]);
 168                 switch (*icachesw = smatch (cp, caches)) {
 169                 case AMBIGSW:
 170                     ambigsw (cp, caches);
 171                     done (1);
 172                 case UNKWNSW:
 173                     adios (NULL, "%s unknown", cp);
 174                 default:
 175                     break;
 176                 }
 177                 continue;
 178
 179             case CHECKSW:
 180                 checksw++;
 181                 continue;
 182             case NCHECKSW:
 183                 checksw = 0;
 184                 continue;
 185
 186             case HEADSW:
 187                 headsw = 1;
 188                 continue;
 189             case NHEADSW:
 190                 headsw = 0;
 191                 continue;
 192
 193             case SIZESW:
 194                 sizesw = 1;
 195                 continue;
 196             case NSIZESW:
 197                 sizesw = 0;
 198                 continue;
 199
 200             case PARTSW:
 201                 if (!(cp = *argp++) || *cp == '-')
 202                     adios (NULL, "missing argument to %s", argp[-2]);
 203                 if (npart >= NPARTS)
 204                     adios (NULL, "too many parts (starting with %s), %d max",
 205                            cp, NPARTS);
 206                 parts[npart++] = cp;
 207                 continue;
 208
 209             case TYPESW:
 210                 if (!(cp = *argp++) || *cp == '-')
 211                     adios (NULL, "missing argument to %s", argp[-2]);
 212                 if (ntype >= NTYPES)
 213                     adios (NULL, "too many types (starting with %s), %d max",
 214                            cp, NTYPES);
 215                 types[ntype++] = cp;
 216                 continue;
 217
 218             case FILESW:
 219                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 220                     adios (NULL, "missing argument to %s", argp[-2]);
 221                 file = *cp == '-' ? cp : path (cp, TFILE);
 222                 continue;
 223
 224             case VERBSW:
 225                 verbosw = 1;
 226                 continue;
 227             case NVERBSW:
 228                 verbosw = 0;
 229                 continue;
 230             case DEBUGSW:
 231                 debugsw = 1;
 232                 continue;
 233             }
 234         }
 235         if (*cp == '+' || *cp == '@') {
 236             if (folder)
 237                 adios (NULL, "only one folder at a time!");
 238             else
 239                 folder = pluspath (cp);
 240         } else
 241                 app_msgarg(&msgs, cp);
 242     }
 243
 244     /* null terminate the list of acceptable parts/types */
 245     parts[npart] = NULL;
 246     types[ntype] = NULL;
 247
 248     set_endian ();
 249
 250     /* Check for public cache location */
 251     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 252         cache_public = NULL;
 253
 254     /* Check for private cache location */
 255     if (!(cache_private = context_find (nmhprivcache)))
 256         cache_private = ".cache";
 257     cache_private = getcpy (m_maildir (cache_private));
 258
 259     /*
 260      * Check for storage directory.  If specified,
 261      * then store temporary files there.  Else we
 262      * store them in standard nmh directory.
 263      */
 264     if ((cp = context_find (nmhstorage)) && *cp)
 265         tmp = concat (cp, "/", invo_name, NULL);
 266     else
 267         tmp = add (m_maildir (invo_name), NULL);
 268
 269     if (!context_find ("path"))
 270         free (path ("./", TFOLDER));
 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, "cur");
 291         if (!folder)
 292             folder = getfolder (1);
 293         maildir = m_maildir (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), 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 (pfolder, 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 }