-/* crypto/asn1/f_string.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. 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.]
+ * 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 "cryptlib.h"
+#include <ctype.h>
+#include "internal/cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/asn1.h>
int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size)
{
- int ret = 0;
- int i, j, k, m, n, again, bufsize;
+ int i, j, k, m, n, again, bufsize, spec_char;
unsigned char *s = NULL, *sp;
unsigned char *bufp;
int num = 0, slen = 0, first = 1;
if (first)
break;
else
- goto err_sl;
+ goto err;
}
first = 0;
if (buf[i - 1] == '\n')
buf[--i] = '\0';
if (i == 0)
- goto err_sl;
+ goto err;
if (buf[i - 1] == '\r')
buf[--i] = '\0';
if (i == 0)
- goto err_sl;
+ goto err;
again = (buf[i - 1] == '\\');
for (j = i - 1; j > 0; j--) {
#ifndef CHARSET_EBCDIC
- if (!(((buf[j] >= '0') && (buf[j] <= '9')) ||
+ spec_char = (!(((buf[j] >= '0') && (buf[j] <= '9')) ||
((buf[j] >= 'a') && (buf[j] <= 'f')) ||
- ((buf[j] >= 'A') && (buf[j] <= 'F'))))
+ ((buf[j] >= 'A') && (buf[j] <= 'F'))));
#else
/*
* This #ifdef is not strictly necessary, since the characters
* A...F a...f 0...9 are contiguous (yes, even in EBCDIC - but
* not the whole alphabet). Nevertheless, isxdigit() is faster.
*/
- if (!isxdigit(buf[j]))
+ spec_char = (!isxdigit(buf[j]));
#endif
- {
+ if (spec_char) {
i = j;
break;
}
* We have now cleared all the crap off the end of the line
*/
if (i < 2)
- goto err_sl;
+ goto err;
bufp = (unsigned char *)buf;
i -= again;
if (i % 2 != 0) {
ASN1err(ASN1_F_A2I_ASN1_STRING, ASN1_R_ODD_NUMBER_OF_CHARS);
- goto err;
+ OPENSSL_free(s);
+ return 0;
}
i /= 2;
if (num + i > slen) {
- if (s == NULL)
- sp = (unsigned char *)OPENSSL_malloc((unsigned int)num +
- i * 2);
- else
- sp = (unsigned char *)OPENSSL_realloc(s,
- (unsigned int)num +
- i * 2);
+ sp = OPENSSL_realloc(s, (unsigned int)num + i * 2);
if (sp == NULL) {
ASN1err(ASN1_F_A2I_ASN1_STRING, ERR_R_MALLOC_FAILURE);
- if (s != NULL)
- OPENSSL_free(s);
- goto err;
+ OPENSSL_free(s);
+ return 0;
}
s = sp;
slen = num + i * 2;
}
for (j = 0; j < i; j++, k += 2) {
for (n = 0; n < 2; n++) {
- m = bufp[k + n];
- if ((m >= '0') && (m <= '9'))
- m -= '0';
- else if ((m >= 'a') && (m <= 'f'))
- m = m - 'a' + 10;
- else if ((m >= 'A') && (m <= 'F'))
- m = m - 'A' + 10;
- else {
+ m = OPENSSL_hexchar2int(bufp[k + n]);
+ if (m < 0) {
ASN1err(ASN1_F_A2I_ASN1_STRING,
ASN1_R_NON_HEX_CHARACTERS);
- goto err;
+ OPENSSL_free(s);
+ return 0;
}
s[num + j] <<= 4;
s[num + j] |= m;
}
bs->length = num;
bs->data = s;
- ret = 1;
+ return 1;
+
err:
- if (0) {
- err_sl:
- ASN1err(ASN1_F_A2I_ASN1_STRING, ASN1_R_SHORT_LINE);
- }
- return (ret);
+ ASN1err(ASN1_F_A2I_ASN1_STRING, ASN1_R_SHORT_LINE);
+ OPENSSL_free(s);
+ return 0;
}
projects / openssl.git / blobdiff