Line data    Source code

       1             : /* crypto/asn1/a_print.c */
       2             : /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
       3             :  * All rights reserved.
       4             :  *
       5             :  * This package is an SSL implementation written
       6             :  * by Eric Young (eay@cryptsoft.com).
       7             :  * The implementation was written so as to conform with Netscapes SSL.
       8             :  *
       9             :  * This library is free for commercial and non-commercial use as long as
      10             :  * the following conditions are aheared to.  The following conditions
      11             :  * apply to all code found in this distribution, be it the RC4, RSA,
      12             :  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
      13             :  * included with this distribution is covered by the same copyright terms
      14             :  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
      15             :  *
      16             :  * Copyright remains Eric Young's, and as such any Copyright notices in
      17             :  * the code are not to be removed.
      18             :  * If this package is used in a product, Eric Young should be given attribution
      19             :  * as the author of the parts of the library used.
      20             :  * This can be in the form of a textual message at program startup or
      21             :  * in documentation (online or textual) provided with the package.
      22             :  *
      23             :  * Redistribution and use in source and binary forms, with or without
      24             :  * modification, are permitted provided that the following conditions
      25             :  * are met:
      26             :  * 1. Redistributions of source code must retain the copyright
      27             :  *    notice, this list of conditions and the following disclaimer.
      28             :  * 2. Redistributions in binary form must reproduce the above copyright
      29             :  *    notice, this list of conditions and the following disclaimer in the
      30             :  *    documentation and/or other materials provided with the distribution.
      31             :  * 3. All advertising materials mentioning features or use of this software
      32             :  *    must display the following acknowledgement:
      33             :  *    "This product includes cryptographic software written by
      34             :  *     Eric Young (eay@cryptsoft.com)"
      35             :  *    The word 'cryptographic' can be left out if the rouines from the library
      36             :  *    being used are not cryptographic related :-).
      37             :  * 4. If you include any Windows specific code (or a derivative thereof) from
      38             :  *    the apps directory (application code) you must include an acknowledgement:
      39             :  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
      40             :  *
      41             :  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
      42             :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      43             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      44             :  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
      45             :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      46             :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      47             :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      48             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      49             :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      50             :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      51             :  * SUCH DAMAGE.
      52             :  *
      53             :  * The licence and distribution terms for any publically available version or
      54             :  * derivative of this code cannot be changed.  i.e. this code cannot simply be
      55             :  * copied and put under another distribution licence
      56             :  * [including the GNU Public Licence.]
      57             :  */
      58             : 
      59             : #include <stdio.h>
      60             : #include "cryptlib.h"
      61             : #include <openssl/asn1.h>
      62             : 
      63           0 : int ASN1_PRINTABLE_type(const unsigned char *s, int len)
      64             : {
      65             :     int c;
      66             :     int ia5 = 0;
      67             :     int t61 = 0;
      68             : 
      69           0 :     if (len <= 0)
      70             :         len = -1;
      71           0 :     if (s == NULL)
      72             :         return (V_ASN1_PRINTABLESTRING);
      73             : 
      74           0 :     while ((*s) && (len-- != 0)) {
      75           0 :         c = *(s++);
      76             : #ifndef CHARSET_EBCDIC
      77           0 :         if (!(((c >= 'a') && (c <= 'z')) ||
      78           0 :               ((c >= 'A') && (c <= 'Z')) ||
      79           0 :               (c == ' ') ||
      80           0 :               ((c >= '0') && (c <= '9')) ||
      81           0 :               (c == ' ') || (c == '\'') ||
      82           0 :               (c == '(') || (c == ')') ||
      83           0 :               (c == '+') || (c == ',') ||
      84           0 :               (c == '-') || (c == '.') ||
      85           0 :               (c == '/') || (c == ':') || (c == '=') || (c == '?')))
      86             :             ia5 = 1;
      87           0 :         if (c & 0x80)
      88             :             t61 = 1;
      89             : #else
      90             :         if (!isalnum(c) && (c != ' ') && strchr("'()+,-./:=?", c) == NULL)
      91             :             ia5 = 1;
      92             :         if (os_toascii[c] & 0x80)
      93             :             t61 = 1;
      94             : #endif
      95             :     }
      96           0 :     if (t61)
      97             :         return (V_ASN1_T61STRING);
      98           0 :     if (ia5)
      99             :         return (V_ASN1_IA5STRING);
     100           0 :     return (V_ASN1_PRINTABLESTRING);
     101             : }
     102             : 
     103           0 : int ASN1_UNIVERSALSTRING_to_string(ASN1_UNIVERSALSTRING *s)
     104             : {
     105             :     int i;
     106             :     unsigned char *p;
     107             : 
     108           0 :     if (s->type != V_ASN1_UNIVERSALSTRING)
     109             :         return (0);
     110           0 :     if ((s->length % 4) != 0)
     111             :         return (0);
     112           0 :     p = s->data;
     113           0 :     for (i = 0; i < s->length; i += 4) {
     114           0 :         if ((p[0] != '\0') || (p[1] != '\0') || (p[2] != '\0'))
     115             :             break;
     116             :         else
     117           0 :             p += 4;
     118             :     }
     119           0 :     if (i < s->length)
     120             :         return (0);
     121             :     p = s->data;
     122           0 :     for (i = 3; i < s->length; i += 4) {
     123           0 :         *(p++) = s->data[i];
     124             :     }
     125           0 :     *(p) = '\0';
     126           0 :     s->length /= 4;
     127           0 :     s->type = ASN1_PRINTABLE_type(s->data, s->length);
     128           0 :     return (1);
     129             : }