-/* crypto/asn1/asn1_par.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 "internal/cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/objects.h>
#include <openssl/asn1.h>
+#ifndef ASN1_PARSE_MAXDEPTH
+#define ASN1_PARSE_MAXDEPTH 128
+#endif
+
static int asn1_print_info(BIO *bp, int tag, int xclass, int constructed,
int indent);
static int asn1_parse2(BIO *bp, const unsigned char **pp, long length,
ASN1_OBJECT *o = NULL;
ASN1_OCTET_STRING *os = NULL;
/* ASN1_BMPSTRING *bmp=NULL; */
- int dump_indent;
+ int dump_indent, dump_cont = 0;
+
+ if (depth > ASN1_PARSE_MAXDEPTH) {
+ BIO_puts(bp, "BAD RECURSION DEPTH\n");
+ return 0;
+ }
dump_indent = 6; /* Because we know BIO_dump_indent() */
p = *pp;
tot = p + length;
- op = p - 1;
- while ((p < tot) && (op < p)) {
+ while (length > 0) {
op = p;
j = ASN1_get_object(&p, &len, &tag, &xclass, length);
if (j & 0x80) {
if (!asn1_print_info(bp, tag, xclass, j, (indent) ? depth : 0))
goto end;
if (j & V_ASN1_CONSTRUCTED) {
+ const unsigned char *sp = p;
+
ep = p + len;
if (BIO_write(bp, "\n", 1) <= 0)
goto end;
ret = 0;
goto end;
}
- if ((r == 2) || (p >= tot))
+ if ((r == 2) || (p >= tot)) {
+ len = p - sp;
break;
+ }
}
- } else
+ } else {
+ long tmp = len;
+
while (p < ep) {
- r = asn1_parse2(bp, &p, (long)len,
+ sp = p;
+ r = asn1_parse2(bp, &p, tmp,
offset + (p - *pp), depth + 1,
indent, dump);
if (r == 0) {
ret = 0;
goto end;
}
+ tmp -= p - sp;
}
+ }
} else if (xclass != 0) {
p += len;
if (BIO_write(bp, "\n", 1) <= 0)
goto end;
i2a_ASN1_OBJECT(bp, o);
} else {
- if (BIO_write(bp, ":BAD OBJECT", 11) <= 0)
+ if (BIO_puts(bp, ":BAD OBJECT") <= 0)
goto end;
+ dump_cont = 1;
}
} else if (tag == V_ASN1_BOOLEAN) {
if (len != 1) {
- if (BIO_write(bp, "Bad boolean\n", 12) <= 0)
+ if (BIO_puts(bp, ":BAD BOOLEAN") <= 0)
goto end;
+ dump_cont = 1;
}
- BIO_printf(bp, ":%u", p[0]);
+ if (len > 0)
+ BIO_printf(bp, ":%u", p[0]);
} else if (tag == V_ASN1_BMPSTRING) {
/* do the BMP thang */
} else if (tag == V_ASN1_OCTET_STRING) {
goto end;
}
} else {
- if (BIO_write(bp, "BAD INTEGER", 11) <= 0)
+ if (BIO_puts(bp, ":BAD INTEGER") <= 0)
goto end;
+ dump_cont = 1;
}
ASN1_INTEGER_free(bs);
} else if (tag == V_ASN1_ENUMERATED) {
goto end;
}
} else {
- if (BIO_write(bp, "BAD ENUMERATED", 14) <= 0)
+ if (BIO_puts(bp, ":BAD ENUMERATED") <= 0)
goto end;
+ dump_cont = 1;
}
ASN1_ENUMERATED_free(bs);
} else if (len > 0 && dump) {
goto end;
nl = 1;
}
+ if (dump_cont) {
+ int i;
+ const unsigned char *tmp = op + hl;
+ if (BIO_puts(bp, ":[") <= 0)
+ goto end;
+ for (i = 0; i < len; i++) {
+ if (BIO_printf(bp, "%02X", tmp[i]) <= 0)
+ goto end;
+ }
+ if (BIO_puts(bp, "]") <= 0)
+ goto end;
+ }
if (!nl) {
if (BIO_write(bp, "\n", 1) <= 0)