a_print.c
2.15 KB
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/*
* Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/ctype.h"
#include "internal/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++);
if (!ossl_isasn1print(c))
ia5 = 1;
if (!ossl_isascii(c))
t61 = 1;
}
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;
}
int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v)
{
int i, n;
char buf[80];
const char *p;
if (v == NULL)
return 0;
n = 0;
p = (const char *)v->data;
for (i = 0; i < v->length; i++) {
if ((p[i] > '~') || ((p[i] < ' ') &&
(p[i] != '\n') && (p[i] != '\r')))
buf[n] = '.';
else
buf[n] = p[i];
n++;
if (n >= 80) {
if (BIO_write(bp, buf, n) <= 0)
return 0;
n = 0;
}
}
if (n > 0)
if (BIO_write(bp, buf, n) <= 0)
return 0;
return 1;
}