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https://github.com/openssl/openssl.git
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110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
/*
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* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include <ctype.h>
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#include "internal/cryptlib.h"
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#include <openssl/asn1.h>
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int ASN1_PRINTABLE_type(const unsigned char *s, int len)
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{
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int c;
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int ia5 = 0;
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int t61 = 0;
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if (len <= 0)
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len = -1;
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if (s == NULL)
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return (V_ASN1_PRINTABLESTRING);
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while ((*s) && (len-- != 0)) {
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c = *(s++);
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#ifndef CHARSET_EBCDIC
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if (!(((c >= 'a') && (c <= 'z')) ||
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((c >= 'A') && (c <= 'Z')) ||
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((c >= '0') && (c <= '9')) ||
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(c == ' ') || (c == '\'') ||
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(c == '(') || (c == ')') ||
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(c == '+') || (c == ',') ||
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(c == '-') || (c == '.') ||
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(c == '/') || (c == ':') || (c == '=') || (c == '?')))
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ia5 = 1;
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if (c & 0x80)
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t61 = 1;
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#else
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if (!isalnum(c) && (c != ' ') && strchr("'()+,-./:=?", c) == NULL)
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ia5 = 1;
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if (os_toascii[c] & 0x80)
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t61 = 1;
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#endif
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}
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if (t61)
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return (V_ASN1_T61STRING);
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if (ia5)
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return (V_ASN1_IA5STRING);
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return (V_ASN1_PRINTABLESTRING);
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}
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int ASN1_UNIVERSALSTRING_to_string(ASN1_UNIVERSALSTRING *s)
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{
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int i;
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unsigned char *p;
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if (s->type != V_ASN1_UNIVERSALSTRING)
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return (0);
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if ((s->length % 4) != 0)
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return (0);
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p = s->data;
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for (i = 0; i < s->length; i += 4) {
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if ((p[0] != '\0') || (p[1] != '\0') || (p[2] != '\0'))
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break;
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else
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p += 4;
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}
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if (i < s->length)
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return (0);
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p = s->data;
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for (i = 3; i < s->length; i += 4) {
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*(p++) = s->data[i];
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}
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*(p) = '\0';
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s->length /= 4;
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s->type = ASN1_PRINTABLE_type(s->data, s->length);
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return (1);
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}
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int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v)
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{
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int i, n;
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char buf[80];
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const char *p;
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if (v == NULL)
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return (0);
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n = 0;
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p = (const char *)v->data;
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for (i = 0; i < v->length; i++) {
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if ((p[i] > '~') || ((p[i] < ' ') &&
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(p[i] != '\n') && (p[i] != '\r')))
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buf[n] = '.';
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else
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buf[n] = p[i];
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n++;
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if (n >= 80) {
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if (BIO_write(bp, buf, n) <= 0)
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return (0);
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n = 0;
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}
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}
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if (n > 0)
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if (BIO_write(bp, buf, n) <= 0)
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return (0);
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return (1);
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}
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