ref: e14d6249749a1101abdad7998e1cd5cdc49e137a
dir: /sys/src/ape/lib/openssl/crypto/asn1/a_print.c/
/* crypto/asn1/a_print.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/asn1.h>
int ASN1_PRINTABLE_type(const unsigned char *s, int len)
{
int c;
int ia5=0;
int t61=0;
if (len <= 0) len= -1;
if (s == NULL) return(V_ASN1_PRINTABLESTRING);
while ((*s) && (len-- != 0))
{
c= *(s++);
#ifndef CHARSET_EBCDIC
if (!( ((c >= 'a') && (c <= 'z')) ||
((c >= 'A') && (c <= 'Z')) ||
(c == ' ') ||
((c >= '0') && (c <= '9')) ||
(c == ' ') || (c == '\'') ||
(c == '(') || (c == ')') ||
(c == '+') || (c == ',') ||
(c == '-') || (c == '.') ||
(c == '/') || (c == ':') ||
(c == '=') || (c == '?')))
ia5=1;
if (c&0x80)
t61=1;
#else
if (!isalnum(c) && (c != ' ') &&
strchr("'()+,-./:=?", c) == NULL)
ia5=1;
if (os_toascii[c] & 0x80)
t61=1;
#endif
}
if (t61) return(V_ASN1_T61STRING);
if (ia5) return(V_ASN1_IA5STRING);
return(V_ASN1_PRINTABLESTRING);
}
int ASN1_UNIVERSALSTRING_to_string(ASN1_UNIVERSALSTRING *s)
{
int i;
unsigned char *p;
if (s->type != V_ASN1_UNIVERSALSTRING) return(0);
if ((s->length%4) != 0) return(0);
p=s->data;
for (i=0; i<s->length; i+=4)
{
if ((p[0] != '\0') || (p[1] != '\0') || (p[2] != '\0'))
break;
else
p+=4;
}
if (i < s->length) return(0);
p=s->data;
for (i=3; i<s->length; i+=4)
{
*(p++)=s->data[i];
}
*(p)='\0';
s->length/=4;
s->type=ASN1_PRINTABLE_type(s->data,s->length);
return(1);
}