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

   1
   2 /*
   3  * mhstore.c -- store the contents of MIME messages
   4  *
   5  * $Id$
   6  */
   7
   8 #include <h/mh.h>
   9 #include <fcntl.h>
  10 #include <h/signals.h>
  11 #include <h/md5.h>
  12 #include <errno.h>
  13 #include <signal.h>
  14 #include <zotnet/mts/mts.h>
  15 #include <zotnet/tws/tws.h>
  16 #include <h/mime.h>
  17 #include <h/mhparse.h>
  18 #include <h/mhcachesbr.h>
  19
  20 #ifdef HAVE_SYS_WAIT_H
  21 # include <sys/wait.h>
  22 #endif
  23
  24 /*
  25  * We allocate space for message names (msgs array)
  26  * this number of elements at a time.
  27  */
  28 #define MAXMSGS  256
  29
  30
  31 static struct swit switches[] = {
  32 #define AUTOSW                  0
  33     { "auto", 0 },
  34 #define NAUTOSW                 1
  35     { "noauto", 0 },
  36 #define CHECKSW                 2
  37     { "check", 0 },
  38 #define NCHECKSW                3
  39     { "nocheck", 0 },
  40 #define VERBSW                  4
  41     { "verbose", 0 },
  42 #define NVERBSW                 5
  43     { "noverbose", 0 },
  44 #define FILESW                  6       /* interface from show */
  45     { "file file", 0 },
  46 #define PARTSW                  7
  47     { "part number", 0 },
  48 #define TYPESW                  8
  49     { "type content", 0 },
  50 #define RCACHESW                9
  51     { "rcache policy", 0 },
  52 #define WCACHESW               10
  53     { "wcache policy", 0 },
  54 #define VERSIONSW              11
  55     { "version", 0 },
  56 #define HELPSW                 12
  57     { "help", 0 },
  58
  59 /*
  60  * switches for debugging
  61  */
  62 #define DEBUGSW                13
  63     { "debug", -5 },
  64     { NULL, 0 }
  65 };
  66
  67
  68 extern int errno;
  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 /* mhstoresbr.c */
  81 extern int autosw;
  82 extern char *cwd;       /* cache current working directory */
  83
  84 /* mhmisc.c */
  85 extern int npart;
  86 extern int ntype;
  87 extern char *parts[NPARTS + 1];
  88 extern char *types[NTYPES + 1];
  89 extern int userrs;
  90
  91 int debugsw = 0;
  92 int verbosw = 0;
  93
  94 /* The list of top-level contents to display */
  95 CT *cts = NULL;
  96
  97 #define quitser pipeser
  98
  99 /* mhparse.c */
 100 CT parse_mime (char *);
 101
 102 /* mhmisc.c */
 103 int part_ok (CT, int);
 104 int type_ok (CT, int);
 105 void set_endian (void);
 106 void flush_errors (void);
 107
 108 /* mhstoresbr.c */
 109 void store_all_messages (CT *);
 110
 111 /* mhfree.c */
 112 void free_content (CT);
 113
 114 /*
 115  * static prototypes
 116  */
 117 static RETSIGTYPE pipeser (int);
 118
 119
 120 int
 121 main (int argc, char **argv)
 122 {
 123     int nummsgs, maxmsgs, msgnum, *icachesw;
 124     char *cp, *file = NULL, *folder = NULL;
 125     char *maildir, buf[100], **argp;
 126     char **arguments, **msgs;
 127     struct msgs *mp = NULL;
 128     CT ct, *ctp;
 129     FILE *fp;
 130
 131 #ifdef LOCALE
 132     setlocale(LC_ALL, "");
 133 #endif
 134     invo_name = r1bindex (argv[0], '/');
 135
 136     /* read user profile/context */
 137     context_read();
 138
 139     arguments = getarguments (invo_name, argc, argv, 1);
 140     argp = arguments;
 141
 142     /*
 143      * Allocate the initial space to record message
 144      * names, ranges, and sequences.
 145      */
 146     nummsgs = 0;
 147     maxmsgs = MAXMSGS;
 148     if (!(msgs = (char **) malloc ((size_t) (maxmsgs * sizeof(*msgs)))))
 149         adios (NULL, "unable to allocate storage");
 150
 151     /*
 152      * Parse arguments
 153      */
 154     while ((cp = *argp++)) {
 155         if (*cp == '-') {
 156             switch (smatch (++cp, switches)) {
 157             case AMBIGSW:
 158                 ambigsw (cp, switches);
 159                 done (1);
 160             case UNKWNSW:
 161                 adios (NULL, "-%s unknown", cp);
 162
 163             case HELPSW:
 164                 snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 165                         invo_name);
 166                 print_help (buf, switches, 1);
 167                 done (1);
 168             case VERSIONSW:
 169                 print_version(invo_name);
 170                 done (1);
 171
 172             case AUTOSW:
 173                 autosw++;
 174                 continue;
 175             case NAUTOSW:
 176                 autosw = 0;
 177                 continue;
 178
 179             case RCACHESW:
 180                 icachesw = &rcachesw;
 181                 goto do_cache;
 182             case WCACHESW:
 183                 icachesw = &wcachesw;
 184 do_cache:
 185                 if (!(cp = *argp++) || *cp == '-')
 186                     adios (NULL, "missing argument to %s", argp[-2]);
 187                 switch (*icachesw = smatch (cp, caches)) {
 188                 case AMBIGSW:
 189                     ambigsw (cp, caches);
 190                     done (1);
 191                 case UNKWNSW:
 192                     adios (NULL, "%s unknown", cp);
 193                 default:
 194                     break;
 195                 }
 196                 continue;
 197
 198             case CHECKSW:
 199                 checksw++;
 200                 continue;
 201             case NCHECKSW:
 202                 checksw = 0;
 203                 continue;
 204
 205             case PARTSW:
 206                 if (!(cp = *argp++) || *cp == '-')
 207                     adios (NULL, "missing argument to %s", argp[-2]);
 208                 if (npart >= NPARTS)
 209                     adios (NULL, "too many parts (starting with %s), %d max",
 210                            cp, NPARTS);
 211                 parts[npart++] = cp;
 212                 continue;
 213
 214             case TYPESW:
 215                 if (!(cp = *argp++) || *cp == '-')
 216                     adios (NULL, "missing argument to %s", argp[-2]);
 217                 if (ntype >= NTYPES)
 218                     adios (NULL, "too many types (starting with %s), %d max",
 219                            cp, NTYPES);
 220                 types[ntype++] = cp;
 221                 continue;
 222
 223             case FILESW:
 224                 if (!(cp = *argp++) || (*cp == '-' && cp[1]))
 225                     adios (NULL, "missing argument to %s", argp[-2]);
 226                 file = *cp == '-' ? cp : path (cp, TFILE);
 227                 continue;
 228
 229             case VERBSW:
 230                 verbosw = 1;
 231                 continue;
 232             case NVERBSW:
 233                 verbosw = 0;
 234                 continue;
 235             case DEBUGSW:
 236                 debugsw = 1;
 237                 continue;
 238             }
 239         }
 240         if (*cp == '+' || *cp == '@') {
 241             if (folder)
 242                 adios (NULL, "only one folder at a time!");
 243             else
 244                 folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
 245         } else {
 246             /*
 247              * Check if we need to allocate more space
 248              * for message names/ranges/sequences.
 249              */
 250             if (nummsgs >= maxmsgs) {
 251                 maxmsgs += MAXMSGS;
 252                 if (!(msgs = (char **) realloc (msgs,
 253                         (size_t) (maxmsgs * sizeof(*msgs)))))
 254                     adios (NULL, "unable to reallocate msgs storage");
 255             }
 256             msgs[nummsgs++] = cp;
 257         }
 258     }
 259
 260     /* null terminate the list of acceptable parts/types */
 261     parts[npart] = NULL;
 262     types[ntype] = NULL;
 263
 264     set_endian ();
 265
 266     /*
 267      * Check if we've specified an additional profile
 268      */
 269     if ((cp = getenv ("MHSTORE"))) {
 270         if ((fp = fopen (cp, "r"))) {
 271             readconfig ((struct node **) 0, fp, cp, 0);
 272             fclose (fp);
 273         } else {
 274             admonish ("", "unable to read $MHSTORE profile (%s)", cp);
 275         }
 276     }
 277
 278     /*
 279      * Read the standard profile setup
 280      */
 281     if ((fp = fopen (cp = etcpath ("mhn.defaults"), "r"))) {
 282         readconfig ((struct node **) 0, fp, cp, 0);
 283         fclose (fp);
 284     }
 285
 286     /* Check for public cache location */
 287     if ((cache_public = context_find (nmhcache)) && *cache_public != '/')
 288         cache_public = NULL;
 289
 290     /* Check for private cache location */
 291     if (!(cache_private = context_find (nmhprivcache)))
 292         cache_private = ".cache";
 293     cache_private = getcpy (m_maildir (cache_private));
 294
 295     /*
 296      * Cache the current directory before we do any chdirs()'s.
 297      */
 298     cwd = getcpy (pwd());
 299
 300     /*
 301      * Check for storage directory.  If specified,
 302      * then store temporary files there.  Else we
 303      * store them in standard nmh directory.
 304      */
 305     if ((cp = context_find (nmhstorage)) && *cp)
 306         tmp = concat (cp, "/", invo_name, NULL);
 307     else
 308         tmp = add (m_maildir (invo_name), NULL);
 309
 310     if (!context_find ("path"))
 311         free (path ("./", TFOLDER));
 312
 313     if (file && nummsgs)
 314         adios (NULL, "cannot specify msg and file at same time!");
 315
 316     /*
 317      * check if message is coming from file
 318      */
 319     if (file) {
 320         if (!(cts = (CT *) calloc ((size_t) 2, sizeof(*cts))))
 321             adios (NULL, "out of memory");
 322         ctp = cts;
 323
 324         if ((ct = parse_mime (file)));
 325             *ctp++ = ct;
 326     } else {
 327         /*
 328          * message(s) are coming from a folder
 329          */
 330         if (!nummsgs)
 331             msgs[nummsgs++] = "cur";
 332         if (!folder)
 333             folder = getfolder (1);
 334         maildir = m_maildir (folder);
 335
 336         if (chdir (maildir) == NOTOK)
 337             adios (maildir, "unable to change directory to");
 338
 339         /* read folder and create message structure */
 340         if (!(mp = folder_read (folder)))
 341             adios (NULL, "unable to read folder %s", folder);
 342
 343         /* check for empty folder */
 344         if (mp->nummsg == 0)
 345             adios (NULL, "no messages in %s", folder);
 346
 347         /* parse all the message ranges/sequences and set SELECTED */
 348         for (msgnum = 0; msgnum < nummsgs; msgnum++)
 349             if (!m_convert (mp, msgs[msgnum]))
 350                 done (1);
 351         seq_setprev (mp);       /* set the previous-sequence */
 352
 353         if (!(cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof(*cts))))
 354             adios (NULL, "out of memory");
 355         ctp = cts;
 356
 357         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 358             if (is_selected(mp, msgnum)) {
 359                 char *msgnam;
 360
 361                 msgnam = m_name (msgnum);
 362                 if ((ct = parse_mime (msgnam)))
 363                     *ctp++ = ct;
 364             }
 365         }
 366     }
 367
 368     if (!*cts)
 369         done (1);
 370
 371     userrs = 1;
 372     SIGNAL (SIGQUIT, quitser);
 373     SIGNAL (SIGPIPE, pipeser);
 374
 375     /*
 376      * Get the associated umask for the relevant contents.
 377      */
 378     for (ctp = cts; *ctp; ctp++) {
 379         struct stat st;
 380
 381         ct = *ctp;
 382         if (type_ok (ct, 1) && !ct->c_umask) {
 383             if (stat (ct->c_file, &st) != NOTOK)
 384                 ct->c_umask = ~(st.st_mode & 0777);
 385             else
 386                 ct->c_umask = ~m_gmprot();
 387         }
 388     }
 389
 390     /*
 391      * Store the message content
 392      */
 393     store_all_messages (cts);
 394
 395     /* Now free all the structures for the content */
 396     for (ctp = cts; *ctp; ctp++)
 397         free_content (*ctp);
 398
 399     free ((char *) cts);
 400     cts = NULL;
 401
 402     /* If reading from a folder, do some updating */
 403     if (mp) {
 404         context_replace (pfolder, folder);/* update current folder  */
 405         seq_setcur (mp, mp->hghsel);      /* update current message */
 406         seq_save (mp);                    /* synchronize sequences  */
 407         context_save ();                  /* save the context file  */
 408     }
 409
 410     return done (0);
 411 }
 412
 413
 414 static RETSIGTYPE
 415 pipeser (int i)
 416 {
 417     if (i == SIGQUIT) {
 418         unlink ("core");
 419         fflush (stdout);
 420         fprintf (stderr, "\n");
 421         fflush (stderr);
 422     }
 423
 424     done (1);
 425     /* NOTREACHED */
 426 }
 427
 428
 429 int
 430 done (int status)
 431 {
 432     CT *ctp;
 433
 434     if ((ctp = cts))
 435         for (; *ctp; ctp++)
 436             free_content (*ctp);
 437
 438     exit (status);
 439     return 1;  /* dead code to satisfy the compiler */
 440 }