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

   1
   2 /*
   3  * mhstore.c -- store 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
  24 #ifdef HAVE_SYS_WAIT_H
  25 # include <sys/wait.h>
  26 #endif
  27
  28 /*
  29  * We allocate space for message names (msgs array)
  30  * this number of elements at a time.
  31  */
  32 #define MAXMSGS  256
  33
  34
  35 static struct swit switches[] = {
  36 #define AUTOSW                  0
  37     { "auto", 0 },
  38 #define NAUTOSW                 1
  39     { "noauto", 0 },
  40 #define CHECKSW                 2
  41     { "check", 0 },
  42 #define NCHECKSW                3
  43     { "nocheck", 0 },
  44 #define VERBSW                  4
  45     { "verbose", 0 },
  46 #define NVERBSW                 5
  47     { "noverbose", 0 },
  48 #define FILESW                  6       /* interface from show */
  49     { "file file", 0 },
  50 #define PARTSW                  7
  51     { "part number", 0 },
  52 #define TYPESW                  8
  53     { "type content", 0 },
  54 #define RCACHESW                9
  55     { "rcache policy", 0 },
  56 #define WCACHESW               10
  57     { "wcache policy", 0 },
  58 #define VERSIONSW              11
  59     { "version", 0 },
  60 #define HELPSW                 12
  61     { "help", 0 },
  62
  63 /*
  64  * switches for debugging
  65  */
  66 #define DEBUGSW                13
  67     { "debug", -5 },
  68     { NULL, 0 }
  69 };
  70
  71
  72 extern int errno;
  73
  74 /* mhparse.c */
  75 extern int checksw;
  76 extern char *tmp;       /* directory to place temp files */
  77
  78 /* mhcachesbr.c */
  79 extern int rcachesw;
  80 extern int wcachesw;
  81 extern char *cache_public;
  82 extern char *cache_private;
  83
  84 /* mhstoresbr.c */
  85 extern int autosw;
  86 extern char *cwd;       /* cache current working directory */
  87
  88 /* mhmisc.c */
  89 extern int npart;
  90 extern int ntype;
  91 extern char *parts[NPARTS + 1];
  92 extern char *types[NTYPES + 1];
  93 extern int userrs;
  94
  95 int debugsw = 0;
  96 int verbosw = 0;
  97
  98 /* The list of top-level contents to display */
  99 CT *cts = NULL;
 100
 101 #define quitser pipeser
 102
 103 /* mhparse.c */
 104 CT parse_mime (char *);
 105
 106 /* mhmisc.c */
 107 int part_ok (CT, int);
 108 int type_ok (CT, int);
 109 void set_endian (void);
 110 void flush_errors (void);
 111
 112 /* mhstoresbr.c */
 113 void store_all_messages (CT *);
 114
 115 /* mhfree.c */
 116 void free_content (CT);
 117
 118 /*
 119  * static prototypes
 120  */
 121 static RETSIGTYPE pipeser (int);
 122
 123
 124 int
 125 main (int argc, char **argv)
 126 {
 127     int nummsgs, maxmsgs, msgnum, *icachesw;
 128     char *cp, *file = NULL, *folder = NULL;
 129     char *maildir, buf[100], **argp;
 130     char **arguments, **msgs;
 131     struct msgs *mp = NULL;
 132     CT ct, *ctp;
 133     FILE *fp;
 134
 135 #ifdef LOCALE
 136     setlocale(LC_ALL, "");
 137 #endif
 138     invo_name = r1bindex (argv[0], '/');
 139
 140     /* read user profile/context */
 141     context_read();
 142
 143     arguments = getarguments (invo_name, argc, argv, 1);
 144     argp = arguments;
 145
 146     /*
 147      * Allocate the initial space to record message
 148      * names, ranges, and sequences.
 149      */
 150     nummsgs = 0;
 151     maxmsgs = MAXMSGS;
 152     if (!(msgs = (char **) malloc ((size_t) (maxmsgs * sizeof(*msgs)))))
 153         adios (NULL, "unable to allocate storage");
 154
 155     /*
 156      * Parse arguments
 157      */
 158     while ((cp = *argp++)) {
 159         if (*cp == '-') {
 160             switch (smatch (++cp, switches)) {
 161             case AMBIGSW:
 162                 ambigsw (cp, switches);
 163                 done (1);
 164             case UNKWNSW:
 165                 adios (NULL, "-%s unknown", cp);
 166
 167             case HELPSW:
 168                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 169                         invo_name);
 170                 print_help (buf, switches, 1);
 171                 done (1);
 172             case VERSIONSW:
 173                 print_version(invo_name);
 174                 done (1);
 175
 176             case AUTOSW:
 177                 autosw++;
 178                 continue;
 179             case NAUTOSW:
 180                 autosw = 0;
 181                 continue;
 182
 183             case RCACHESW:
 184                 icachesw = &rcachesw;
 185                 goto do_cache;
 186             case WCACHESW:
 187                 icachesw = &wcachesw;
 188 do_cache:
 189                 if (!(cp = *argp++) || *cp == '-')
 190                     adios (NULL, "missing argument to %s", argp[-2]);
 191                 switch (*icachesw = smatch (cp, caches)) {
 192                 case AMBIGSW:
 193                     ambigsw (cp, caches);
 194                     done (1);
 195                 case UNKWNSW:
 196                     adios (NULL, "%s unknown", cp);
 197                 default:
 198                     break;
 199                 }
 200                 continue;
 201
 202             case CHECKSW:
 203                 checksw++;
 204                 continue;
 205             case NCHECKSW:
 206                 checksw = 0;
 207                 continue;
 208
 209             case PARTSW:
 210                 if (!(cp = *argp++) || *cp == '-')
 211                     adios (NULL, "missing argument to %s", argp[-2]);
 212                 if (npart >= NPARTS)
 213                     adios (NULL, "too many parts (starting with %s), %d max",
 214                            cp, NPARTS);
 215                 parts[npart++] = cp;
 216                 continue;
 217
 218             case TYPESW:
 219                 if (!(cp = *argp++) || *cp == '-')
 220                     adios (NULL, "missing argument to %s", argp[-2]);
 221                 if (ntype >= NTYPES)
 222                     adios (NULL, "too many types (starting with %s), %d max",
 223                            cp, NTYPES);
 224                 types[ntype++] = cp;
 225                 continue;
 226
 227             case FILESW:
 228                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 229                     adios (NULL, "missing argument to %s", argp[-2]);
 230                 file = *cp == '-' ? cp : path (cp, TFILE);
 231                 continue;
 232
 233             case VERBSW:
 234                 verbosw = 1;
 235                 continue;
 236             case NVERBSW:
 237                 verbosw = 0;
 238                 continue;
 239             case DEBUGSW:
 240                 debugsw = 1;
 241                 continue;
 242             }
 243         }
 244         if (*cp == '+' || *cp == '@') {
 245             if (folder)
 246                 adios (NULL, "only one folder at a time!");
 247             else
 248                 folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
 249         } else {
 250             /*
 251              * Check if we need to allocate more space
 252              * for message names/ranges/sequences.
 253              */
 254             if (nummsgs >= maxmsgs) {
 255                 maxmsgs += MAXMSGS;
 256                 if (!(msgs = (char **) realloc (msgs,
 257                         (size_t) (maxmsgs * sizeof(*msgs)))))
 258                     adios (NULL, "unable to reallocate msgs storage");
 259             }
 260             msgs[nummsgs++] = cp;
 261         }
 262     }
 263
 264     /* null terminate the list of acceptable parts/types */
 265     parts[npart] = NULL;
 266     types[ntype] = NULL;
 267
 268     set_endian ();
 269
 270     /*
 271      * Check if we've specified an additional profile
 272      */
 273     if ((cp = getenv ("MHSTORE"))) {
 274         if ((fp = fopen (cp, "r"))) {
 275             readconfig ((struct node **) 0, fp, cp, 0);
 276             fclose (fp);
 277         } else {
 278             admonish ("", "unable to read $MHSTORE profile (%s)", cp);
 279         }
 280     }
 281
 282     /*
 283      * Read the standard profile setup
 284      */
 285     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
 286         readconfig ((struct node **) 0, fp, cp, 0);
 287         fclose (fp);
 288     }
 289
 290     /* Check for public cache location */
 291     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 292         cache_public = NULL;
 293
 294     /* Check for private cache location */
 295     if (!(cache_private = context_find (nmhprivcache)))
 296         cache_private = ".cache";
 297     cache_private = getcpy (m_maildir (cache_private));
 298
 299     /*
 300      * Cache the current directory before we do any chdirs()'s.
 301      */
 302     cwd = getcpy (pwd());
 303
 304     /*
 305      * Check for storage directory.  If specified,
 306      * then store temporary files there.  Else we
 307      * store them in standard nmh directory.
 308      */
 309     if ((cp = context_find (nmhstorage)) && *cp)
 310         tmp = concat (cp, "/", invo_name, NULL);
 311     else
 312         tmp = add (m_maildir (invo_name), NULL);
 313
 314     if (!context_find ("path"))
 315         free (path ("./", TFOLDER));
 316
 317     if (file && nummsgs)
 318         adios (NULL, "cannot specify msg and file at same time!");
 319
 320     /*
 321      * check if message is coming from file
 322      */
 323     if (file) {
 324         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 325             adios (NULL, "out of memory");
 326         ctp = cts;
 327
 328         if ((ct = parse_mime (file)));
 329             *ctp++ = ct;
 330     } else {
 331         /*
 332          * message(s) are coming from a folder
 333          */
 334         if (!nummsgs)
 335             msgs[nummsgs++] = "cur";
 336         if (!folder)
 337             folder = getfolder (1);
 338         maildir = m_maildir (folder);
 339
 340         if (chdir (maildir) == NOTOK)
 341             adios (maildir, "unable to change directory to");
 342
 343         /* read folder and create message structure */
 344         if (!(mp = folder_read (folder)))
 345             adios (NULL, "unable to read folder %s", folder);
 346
 347         /* check for empty folder */
 348         if (mp->nummsg == 0)
 349             adios (NULL, "no messages in %s", folder);
 350
 351         /* parse all the message ranges/sequences and set SELECTED */
 352         for (msgnum = 0; msgnum < nummsgs; msgnum++)
 353             if (!m_convert (mp, msgs[msgnum]))
 354                 done (1);
 355         seq_setprev (mp);       /* set the previous-sequence */
 356
 357         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 358             adios (NULL, "out of memory");
 359         ctp = cts;
 360
 361         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 362             if (is_selected(mp, msgnum)) {
 363                 char *msgnam;
 364
 365                 msgnam = m_name (msgnum);
 366                 if ((ct = parse_mime (msgnam)))
 367                     *ctp++ = ct;
 368             }
 369         }
 370     }
 371
 372     if (!*cts)
 373         done (1);
 374
 375     userrs = 1;
 376     SIGNAL (SIGQUIT, quitser);
 377     SIGNAL (SIGPIPE, pipeser);
 378
 379     /*
 380      * Get the associated umask for the relevant contents.
 381      */
 382     for (ctp = cts; *ctp; ctp++) {
 383         struct stat st;
 384
 385         ct = *ctp;
 386         if (type_ok (ct, 1) && !ct->c_umask) {
 387             if (stat (ct->c_file, &st) != NOTOK)
 388                 ct->c_umask = ~(st.st_mode & 0777);
 389             else
 390                 ct->c_umask = ~m_gmprot();
 391         }
 392     }
 393
 394     /*
 395      * Store the message content
 396      */
 397     store_all_messages (cts);
 398
 399     /* Now free all the structures for the content */
 400     for (ctp = cts; *ctp; ctp++)
 401         free_content (*ctp);
 402
 403     free ((char *) cts);
 404     cts = NULL;
 405
 406     /* If reading from a folder, do some updating */
 407     if (mp) {
 408         context_replace (pfolder, folder);/* update current folder  */
 409         seq_setcur (mp, mp->hghsel);      /* update current message */
 410         seq_save (mp);                    /* synchronize sequences  */
 411         context_save ();                  /* save the context file  */
 412     }
 413
 414     return done (0);
 415 }
 416
 417
 418 static RETSIGTYPE
 419 pipeser (int i)
 420 {
 421     if (i == SIGQUIT) {
 422         unlink ("core");
 423         fflush (stdout);
 424         fprintf (stderr, "\n");
 425         fflush (stderr);
 426     }
 427
 428     done (1);
 429     /* NOTREACHED */
 430 }
 431
 432
 433 int
 434 done (int status)
 435 {
 436     CT *ctp;
 437
 438     if ((ctp = cts))
 439         for (; *ctp; ctp++)
 440             free_content (*ctp);
 441
 442     exit (status);
 443     return 1;  /* dead code to satisfy the compiler */
 444 }