a_print.c
上传用户:yisoukefu
上传日期:2020-08-09
资源大小:39506k
文件大小:4k
- /* 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] != ' ') || (p[1] != ' ') || (p[2] != ' '))
- 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)=' ';
- s->length/=4;
- s->type=ASN1_PRINTABLE_type(s->data,s->length);
- return(1);
- }