ssl/libcrypto/src/crypto/asn1/evp_asn1.c
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ssl/libcrypto/src/crypto/asn1/evp_asn1.c	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,189 @@
+/* crypto/asn1/evp_asn1.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>
+#include <openssl/asn1_mac.h>
+
+EXPORT_C int ASN1_TYPE_set_octetstring(ASN1_TYPE *a, unsigned char *data, int len)
+	{
+	ASN1_STRING *os;
+
+	if ((os=M_ASN1_OCTET_STRING_new()) == NULL) return(0);
+	if (!M_ASN1_OCTET_STRING_set(os,data,len)) return(0);
+	ASN1_TYPE_set(a,V_ASN1_OCTET_STRING,os);
+	return(1);
+	}
+
+/* int max_len:  for returned value    */
+EXPORT_C int ASN1_TYPE_get_octetstring(ASN1_TYPE *a, unsigned char *data,
+	     int max_len)
+	{
+	int ret,num;
+	unsigned char *p;
+
+	if ((a->type != V_ASN1_OCTET_STRING) || (a->value.octet_string == NULL))
+		{
+		ASN1err(ASN1_F_ASN1_TYPE_GET_OCTETSTRING,ASN1_R_DATA_IS_WRONG);
+		return(-1);
+		}
+	p=M_ASN1_STRING_data(a->value.octet_string);
+	ret=M_ASN1_STRING_length(a->value.octet_string);
+	if (ret < max_len)
+		num=ret;
+	else
+		num=max_len;
+	memcpy(data,p,num);
+	return(ret);
+	}
+
+EXPORT_C int ASN1_TYPE_set_int_octetstring(ASN1_TYPE *a, long num, unsigned char *data,
+	     int len)
+	{
+	int n,size;
+	ASN1_OCTET_STRING os,*osp;
+	ASN1_INTEGER in;
+	unsigned char *p;
+	unsigned char buf[32]; /* when they have 256bit longs, 
+				* I'll be in trouble */
+	in.data=buf;
+	in.length=32;
+	os.data=data;
+	os.type=V_ASN1_OCTET_STRING;
+	os.length=len;
+	ASN1_INTEGER_set(&in,num);
+	n =  i2d_ASN1_INTEGER(&in,NULL);
+	n+=M_i2d_ASN1_OCTET_STRING(&os,NULL);
+
+	size=ASN1_object_size(1,n,V_ASN1_SEQUENCE);
+
+	if ((osp=ASN1_STRING_new()) == NULL) return(0);
+	/* Grow the 'string' */
+	if (!ASN1_STRING_set(osp,NULL,size))
+		{
+		ASN1_STRING_free(osp);
+		return(0);
+		}
+
+	M_ASN1_STRING_length_set(osp, size);
+	p=M_ASN1_STRING_data(osp);
+
+	ASN1_put_object(&p,1,n,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL);
+	  i2d_ASN1_INTEGER(&in,&p);
+	M_i2d_ASN1_OCTET_STRING(&os,&p);
+
+	ASN1_TYPE_set(a,V_ASN1_SEQUENCE,osp);
+	return(1);
+	}
+
+/* we return the actual length..., num may be missing, in which
+ * case, set it to zero */
+/* int max_len:  for returned value    */
+EXPORT_C int ASN1_TYPE_get_int_octetstring(ASN1_TYPE *a, long *num, unsigned char *data,
+	     int max_len)
+	{
+	int ret= -1,n;
+	ASN1_INTEGER *ai=NULL;
+	ASN1_OCTET_STRING *os=NULL;
+	const unsigned char *p;
+	long length;
+	ASN1_const_CTX c;
+
+	if ((a->type != V_ASN1_SEQUENCE) || (a->value.sequence == NULL))
+		{
+		goto err;
+		}
+	p=M_ASN1_STRING_data(a->value.sequence);
+	length=M_ASN1_STRING_length(a->value.sequence);
+
+	c.pp= &p;
+	c.p=p;
+	c.max=p+length;
+	c.error=ASN1_R_DATA_IS_WRONG;
+
+	M_ASN1_D2I_start_sequence();
+	c.q=c.p;
+	if ((ai=d2i_ASN1_INTEGER(NULL,&c.p,c.slen)) == NULL) goto err;
+        c.slen-=(c.p-c.q);
+	c.q=c.p;
+	if ((os=d2i_ASN1_OCTET_STRING(NULL,&c.p,c.slen)) == NULL) goto err;
+        c.slen-=(c.p-c.q);
+	if (!M_ASN1_D2I_end_sequence()) goto err;
+
+	if (num != NULL)
+		*num=ASN1_INTEGER_get(ai);
+
+	ret=M_ASN1_STRING_length(os);
+	if (max_len > ret)
+		n=ret;
+	else
+		n=max_len;
+
+	if (data != NULL)
+		memcpy(data,M_ASN1_STRING_data(os),n);
+	if (0)
+		{
+err:
+		ASN1err(ASN1_F_ASN1_TYPE_GET_INT_OCTETSTRING,ASN1_R_DATA_IS_WRONG);
+		}
+	if (os != NULL) M_ASN1_OCTET_STRING_free(os);
+	if (ai != NULL) M_ASN1_INTEGER_free(ai);
+	return(ret);
+	}
+