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