scripts/oid2der.c

   1 /*
   2  * Copyright (C) 2010 Martin Willi
   3  *
   4  * Copyright (C) secunet Security Networks AG
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2 of the License, or (at your
   9  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * for more details.
  15  */
  16
  17 #include <stdio.h>
  18 #include <asn1/asn1.h>
  19
  20 /**
  21  * convert string OID to DER encoding
  22  */
  23 int main(int argc, char *argv[])
  24 {
  25         int i, nr = 0;
  26         chunk_t oid;
  27         char *decoded;
  28         bool decode = FALSE;
  29
  30         if (streq(argv[1], "-d"))
  31         {
  32                 decode = TRUE;
  33                 nr++;
  34         }
  35
  36         while (argc > ++nr)
  37         {
  38                 if (decode)
  39                 {
  40                         oid = chunk_from_hex(chunk_from_str(argv[nr]), NULL);
  41                         decoded = asn1_oid_to_string(oid);
  42                         printf("%s\n", decoded);
  43                         free(decoded);
  44                         free(oid.ptr);
  45                         continue;
  46                 }
  47                 oid = asn1_oid_from_string(argv[nr]);
  48                 if (oid.len)
  49                 {
  50                         for (i = 0; i < oid.len; i++)
  51                         {
  52                                 printf("0x%02x,", oid.ptr[i]);
  53                         }
  54                         printf("\n");
  55                         free(oid.ptr);
  56                 }
  57                 else
  58                 {
  59                         return 1;
  60                 }
  61         }
  62         return 0;
  63 }