lib/tdb2/tools/tdb2dump.c

   1 /*
   2    simple tdb2 dump util
   3    Copyright (C) Andrew Tridgell              2001
   4    Copyright (C) Rusty Russell                2011
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19 #include "config.h"
  20 #include "tdb2.h"
  21 #ifdef HAVE_LIBREPLACE
  22 #include <replace.h>
  23 #include <system/filesys.h>
  24 #include <system/locale.h>
  25 #else
  26 #include <ctype.h>
  27 #include <stdio.h>
  28 #include <sys/types.h>
  29 #include <sys/stat.h>
  30 #include <fcntl.h>
  31 #include <stdlib.h>
  32 #include <unistd.h>
  33 #endif
  34
  35 static void print_data(TDB_DATA d)
  36 {
  37         unsigned char *p = (unsigned char *)d.dptr;
  38         int len = d.dsize;
  39         while (len--) {
  40                 if (isprint(*p) && !strchr("\"\\", *p)) {
  41                         fputc(*p, stdout);
  42                 } else {
  43                         printf("\\%02X", *p);
  44                 }
  45                 p++;
  46         }
  47 }
  48
  49 static int traverse_fn(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf, void *state)
  50 {
  51         printf("{\n");
  52         printf("key(%d) = \"", (int)key.dsize);
  53         print_data(key);
  54         printf("\"\n");
  55         printf("data(%d) = \"", (int)dbuf.dsize);
  56         print_data(dbuf);
  57         printf("\"\n");
  58         printf("}\n");
  59         return 0;
  60 }
  61
  62 static int dump_tdb(const char *fname, const char *keyname)
  63 {
  64         struct tdb_context *tdb;
  65         TDB_DATA key, value;
  66
  67         tdb = tdb_open(fname, 0, O_RDONLY, 0, NULL);
  68         if (!tdb) {
  69                 printf("Failed to open %s\n", fname);
  70                 return 1;
  71         }
  72
  73         if (!keyname) {
  74                 tdb_traverse(tdb, traverse_fn, NULL);
  75         } else {
  76                 key = tdb_mkdata(keyname, strlen(keyname));
  77                 if (tdb_fetch(tdb, key, &value) != 0) {
  78                         return 1;
  79                 } else {
  80                         print_data(value);
  81                         free(value.dptr);
  82                 }
  83         }
  84
  85         return 0;
  86 }
  87
  88 static void usage( void)
  89 {
  90         printf( "Usage: tdb2dump [options] <filename>\n\n");
  91         printf( "   -h          this help message\n");
  92         printf( "   -k keyname  dumps value of keyname\n");
  93 }
  94
  95  int main(int argc, char *argv[])
  96 {
  97         char *fname, *keyname=NULL;
  98         int c;
  99
 100         if (argc < 2) {
 101                 printf("Usage: tdb2dump <fname>\n");
 102                 exit(1);
 103         }
 104
 105         while ((c = getopt( argc, argv, "hk:")) != -1) {
 106                 switch (c) {
 107                 case 'h':
 108                         usage();
 109                         exit( 0);
 110                 case 'k':
 111                         keyname = optarg;
 112                         break;
 113                 default:
 114                         usage();
 115                         exit( 1);
 116                 }
 117         }
 118
 119         fname = argv[optind];
 120
 121         return dump_tdb(fname, keyname);
 122 }