scripts/oid2der.c

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