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

   1
   2 /*
   3  * mhlist.c -- list the contents of MIME messages
   4  *
   5  * $Id$
   6  *
   7  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   8  * COPYRIGHT file in the root directory of the nmh distribution for
   9  * complete copyright information.
  10  */
  11
  12 #include <h/mh.h>
  13 #include <fcntl.h>
  14 #include <h/signals.h>
  15 #include <h/md5.h>
  16 #include <errno.h>
  17 #include <signal.h>
  18 #include <h/mts.h>
  19 #include <h/tws.h>
  20 #include <h/mime.h>
  21 #include <h/mhparse.h>
  22 #include <h/mhcachesbr.h>
  23 #include <h/utils.h>
  24
  25 #ifdef HAVE_SYS_WAIT_H
  26 # include <sys/wait.h>
  27 #endif
  28
  29 static struct swit switches[] = {
  30 #define CHECKSW                 0
  31     { "check", 0 },
  32 #define NCHECKSW                1
  33     { "nocheck", 0 },
  34 #define HEADSW                  2
  35     { "headers", 0 },
  36 #define NHEADSW                 3
  37     { "noheaders", 0 },
  38 #define SIZESW                  4
  39     { "realsize", 0 },
  40 #define NSIZESW                 5
  41     { "norealsize", 0 },
  42 #define VERBSW                  6
  43     { "verbose", 0 },
  44 #define NVERBSW                 7
  45     { "noverbose", 0 },
  46 #define FILESW                  8       /* interface from show */
  47     { "file file", 0 },
  48 #define PARTSW                  9
  49     { "part number", 0 },
  50 #define TYPESW                 10
  51     { "type content", 0 },
  52 #define RCACHESW               11
  53     { "rcache policy", 0 },
  54 #define WCACHESW               12
  55     { "wcache policy", 0 },
  56 #define VERSIONSW              13
  57     { "version", 0 },
  58 #define HELPSW                 14
  59     { "help", 0 },
  60
  61 /*
  62  * switches for debugging
  63  */
  64 #define DEBUGSW                15
  65     { "debug", -5 },
  66     { NULL, 0 }
  67 };
  68
  69
  70 /* mhparse.c */
  71 extern int checksw;
  72 extern char *tmp;       /* directory to place temp files */
  73
  74 /* mhcachesbr.c */
  75 extern int rcachesw;
  76 extern int wcachesw;
  77 extern char *cache_public;
  78 extern char *cache_private;
  79
  80 /* mhmisc.c */
  81 extern int npart;
  82 extern int ntype;
  83 extern char *parts[NPARTS + 1];
  84 extern char *types[NTYPES + 1];
  85 extern int userrs;
  86
  87 /*
  88  * This is currently needed to keep mhparse happy.
  89  * This needs to be changed.
  90  */
  91 pid_t xpid  = 0;
  92
  93 int debugsw = 0;
  94 int verbosw = 0;
  95
  96 /* The list of top-level contents to display */
  97 CT *cts = NULL;
  98
  99 #define quitser pipeser
 100
 101 /* mhparse.c */
 102 CT parse_mime (char *);
 103
 104 /* mhmisc.c */
 105 int part_ok (CT, int);
 106 int type_ok (CT, int);
 107 void set_endian (void);
 108 void flush_errors (void);
 109
 110 /* mhlistsbr.c */
 111 void list_all_messages (CT *, int, int, int, int);
 112
 113 /* mhfree.c */
 114 void free_content (CT);
 115
 116 /*
 117  * static prototypes
 118  */
 119 static RETSIGTYPE pipeser (int);
 120
 121
 122 int
 123 main (int argc, char **argv)
 124 {
 125     int sizesw = 1, headsw = 1;
 126     int msgnum, *icachesw;
 127     char *cp, *file = NULL, *folder = NULL;
 128     char *maildir, buf[100], **argp;
 129     char **arguments;
 130     struct msgs_array msgs = { 0, 0, NULL };
 131     struct msgs *mp = NULL;
 132     CT ct, *ctp;
 133
 134 #ifdef LOCALE
 135     setlocale(LC_ALL, "");
 136 #endif
 137     invo_name = r1bindex (argv[0], '/');
 138
 139     /* read user profile/context */
 140     context_read();
 141
 142     arguments = getarguments (invo_name, argc, argv, 1);
 143     argp = arguments;
 144
 145     /*
 146      * Parse arguments
 147      */
 148     while ((cp = *argp++)) {
 149         if (*cp == '-') {
 150             switch (smatch (++cp, switches)) {
 151             case AMBIGSW:
 152                 ambigsw (cp, switches);
 153                 done (1);
 154             case UNKWNSW:
 155                 adios (NULL, "-%s unknown", cp);
 156
 157             case HELPSW:
 158                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 159                         invo_name);
 160                 print_help (buf, switches, 1);
 161                 done (1);
 162             case VERSIONSW:
 163                 print_version(invo_name);
 164                 done (1);
 165
 166             case RCACHESW:
 167                 icachesw = &rcachesw;
 168                 goto do_cache;
 169             case WCACHESW:
 170                 icachesw = &wcachesw;
 171 do_cache:
 172                 if (!(cp = *argp++) || *cp == '-')
 173                     adios (NULL, "missing argument to %s", argp[-2]);
 174                 switch (*icachesw = smatch (cp, caches)) {
 175                 case AMBIGSW:
 176                     ambigsw (cp, caches);
 177                     done (1);
 178                 case UNKWNSW:
 179                     adios (NULL, "%s unknown", cp);
 180                 default:
 181                     break;
 182                 }
 183                 continue;
 184
 185             case CHECKSW:
 186                 checksw++;
 187                 continue;
 188             case NCHECKSW:
 189                 checksw = 0;
 190                 continue;
 191
 192             case HEADSW:
 193                 headsw = 1;
 194                 continue;
 195             case NHEADSW:
 196                 headsw = 0;
 197                 continue;
 198
 199             case SIZESW:
 200                 sizesw = 1;
 201                 continue;
 202             case NSIZESW:
 203                 sizesw = 0;
 204                 continue;
 205
 206             case PARTSW:
 207                 if (!(cp = *argp++) || *cp == '-')
 208                     adios (NULL, "missing argument to %s", argp[-2]);
 209                 if (npart >= NPARTS)
 210                     adios (NULL, "too many parts (starting with %s), %d max",
 211                            cp, NPARTS);
 212                 parts[npart++] = cp;
 213                 continue;
 214
 215             case TYPESW:
 216                 if (!(cp = *argp++) || *cp == '-')
 217                     adios (NULL, "missing argument to %s", argp[-2]);
 218                 if (ntype >= NTYPES)
 219                     adios (NULL, "too many types (starting with %s), %d max",
 220                            cp, NTYPES);
 221                 types[ntype++] = cp;
 222                 continue;
 223
 224             case FILESW:
 225                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 226                     adios (NULL, "missing argument to %s", argp[-2]);
 227                 file = *cp == '-' ? cp : path (cp, TFILE);
 228                 continue;
 229
 230             case VERBSW:
 231                 verbosw = 1;
 232                 continue;
 233             case NVERBSW:
 234                 verbosw = 0;
 235                 continue;
 236             case DEBUGSW:
 237                 debugsw = 1;
 238                 continue;
 239             }
 240         }
 241         if (*cp == '+' || *cp == '@') {
 242             if (folder)
 243                 adios (NULL, "only one folder at a time!");
 244             else
 245                 folder = pluspath (cp);
 246         } else
 247                 app_msgarg(&msgs, cp);
 248     }
 249
 250     /* null terminate the list of acceptable parts/types */
 251     parts[npart] = NULL;
 252     types[ntype] = NULL;
 253
 254     set_endian ();
 255
 256     /* Check for public cache location */
 257     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 258         cache_public = NULL;
 259
 260     /* Check for private cache location */
 261     if (!(cache_private = context_find (nmhprivcache)))
 262         cache_private = ".cache";
 263     cache_private = getcpy (m_maildir (cache_private));
 264
 265     /*
 266      * Check for storage directory.  If specified,
 267      * then store temporary files there.  Else we
 268      * store them in standard nmh directory.
 269      */
 270     if ((cp = context_find (nmhstorage)) && *cp)
 271         tmp = concat (cp, "/", invo_name, NULL);
 272     else
 273         tmp = add (m_maildir (invo_name), NULL);
 274
 275     if (!context_find ("path"))
 276         free (path ("./", TFOLDER));
 277
 278     if (file && msgs.size)
 279         adios (NULL, "cannot specify msg and file at same time!");
 280
 281     /*
 282      * check if message is coming from file
 283      */
 284     if (file) {
 285         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 286             adios (NULL, "out of memory");
 287         ctp = cts;
 288
 289         if ((ct = parse_mime (file)));
 290             *ctp++ = ct;
 291     } else {
 292         /*
 293          * message(s) are coming from a folder
 294          */
 295         if (!msgs.size)
 296             app_msgarg(&msgs, "cur");
 297         if (!folder)
 298             folder = getfolder (1);
 299         maildir = m_maildir (folder);
 300
 301         if (chdir (maildir) == NOTOK)
 302             adios (maildir, "unable to change directory to");
 303
 304         /* read folder and create message structure */
 305         if (!(mp = folder_read (folder)))
 306             adios (NULL, "unable to read folder %s", folder);
 307
 308         /* check for empty folder */
 309         if (mp->nummsg == 0)
 310             adios (NULL, "no messages in %s", folder);
 311
 312         /* parse all the message ranges/sequences and set SELECTED */
 313         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 314             if (!m_convert (mp, msgs.msgs[msgnum]))
 315                 done (1);
 316         seq_setprev (mp);       /* set the previous-sequence */
 317
 318         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 319             adios (NULL, "out of memory");
 320         ctp = cts;
 321
 322         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 323             if (is_selected(mp, msgnum)) {
 324                 char *msgnam;
 325
 326                 msgnam = m_name (msgnum);
 327                 if ((ct = parse_mime (msgnam)))
 328                     *ctp++ = ct;
 329             }
 330         }
 331     }
 332
 333     if (!*cts)
 334         done (1);
 335
 336     userrs = 1;
 337     SIGNAL (SIGQUIT, quitser);
 338     SIGNAL (SIGPIPE, pipeser);
 339
 340     /*
 341      * Get the associated umask for the relevant contents.
 342      */
 343     for (ctp = cts; *ctp; ctp++) {
 344         struct stat st;
 345
 346         ct = *ctp;
 347         if (type_ok (ct, 1) && !ct->c_umask) {
 348             if (stat (ct->c_file, &st) != NOTOK)
 349                 ct->c_umask = ~(st.st_mode & 0777);
 350             else
 351                 ct->c_umask = ~m_gmprot();
 352         }
 353     }
 354
 355     /*
 356      * List the message content
 357      */
 358     list_all_messages (cts, headsw, sizesw, verbosw, debugsw);
 359
 360     /* Now free all the structures for the content */
 361     for (ctp = cts; *ctp; ctp++)
 362         free_content (*ctp);
 363
 364     free ((char *) cts);
 365     cts = NULL;
 366
 367     /* If reading from a folder, do some updating */
 368     if (mp) {
 369         context_replace (pfolder, folder);/* update current folder  */
 370         seq_setcur (mp, mp->hghsel);      /* update current message */
 371         seq_save (mp);                    /* synchronize sequences  */
 372         context_save ();                  /* save the context file  */
 373     }
 374
 375     return done (0);
 376 }
 377
 378
 379 static RETSIGTYPE
 380 pipeser (int i)
 381 {
 382     if (i == SIGQUIT) {
 383         unlink ("core");
 384         fflush (stdout);
 385         fprintf (stderr, "\n");
 386         fflush (stderr);
 387     }
 388
 389     done (1);
 390     /* NOTREACHED */
 391 }
 392
 393
 394 int
 395 done (int status)
 396 {
 397     CT *ctp;
 398
 399     if ((ctp = cts))
 400         for (; *ctp; ctp++)
 401             free_content (*ctp);
 402
 403     exit (status);
 404     return 1;  /* dead code to satisfy the compiler */
 405 }