ssl/libcrypto/src/crypto/asn1/a_set.c
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ssl/libcrypto/src/crypto/asn1/a_set.c	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,238 @@
+/* crypto/asn1/a_set.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_mac.h>
+
+#ifndef NO_ASN1_OLD
+
+typedef struct
+    {
+    unsigned char *pbData;
+    int cbData;
+    } MYBLOB;
+
+/* SetBlobCmp
+ * This function compares two elements of SET_OF block
+ */
+static int SetBlobCmp(const void *elem1, const void *elem2 )
+    {
+    const MYBLOB *b1 = (const MYBLOB *)elem1;
+    const MYBLOB *b2 = (const MYBLOB *)elem2;
+    int r;
+
+    r = memcmp(b1->pbData, b2->pbData,
+	       b1->cbData < b2->cbData ? b1->cbData : b2->cbData);
+    if(r != 0)
+	return r;
+    return b1->cbData-b2->cbData;
+    }
+
+/* int is_set:  if TRUE, then sort the contents (i.e. it isn't a SEQUENCE)    */
+EXPORT_C int i2d_ASN1_SET(STACK *a, unsigned char **pp, i2d_of_void *i2d, int ex_tag,
+		 int ex_class, int is_set)
+	{
+	int ret=0,r;
+	int i;
+	unsigned char *p;
+        unsigned char *pStart, *pTempMem;
+        MYBLOB *rgSetBlob;
+        int totSize;
+
+	if (a == NULL) return(0);
+	for (i=sk_num(a)-1; i>=0; i--)
+		ret+=i2d(sk_value(a,i),NULL);
+	r=ASN1_object_size(1,ret,ex_tag);
+	if (pp == NULL) return(r);
+
+	p= *pp;
+	ASN1_put_object(&p,1,ret,ex_tag,ex_class);
+
+/* Modified by gp@nsj.co.jp */
+	/* And then again by Ben */
+	/* And again by Steve */
+
+	if(!is_set || (sk_num(a) < 2))
+		{
+		for (i=0; i<sk_num(a); i++)
+                	i2d(sk_value(a,i),&p);
+
+		*pp=p;
+		return(r);
+		}
+
+        pStart  = p; /* Catch the beg of Setblobs*/
+		/* In this array we will store the SET blobs */
+		rgSetBlob = (MYBLOB *)OPENSSL_malloc(sk_num(a) * sizeof(MYBLOB));
+		if (rgSetBlob == NULL)
+			{
+			ASN1err(ASN1_F_I2D_ASN1_SET,ERR_R_MALLOC_FAILURE);
+			return(0);
+			}
+
+        for (i=0; i<sk_num(a); i++)
+	        {
+                rgSetBlob[i].pbData = p;  /* catch each set encode blob */
+                i2d(sk_value(a,i),&p);
+                rgSetBlob[i].cbData = p - rgSetBlob[i].pbData; /* Length of this
+SetBlob
+*/
+		}
+        *pp=p;
+        totSize = p - pStart; /* This is the total size of all set blobs */
+
+ /* Now we have to sort the blobs. I am using a simple algo.
+    *Sort ptrs *Copy to temp-mem *Copy from temp-mem to user-mem*/
+        qsort( rgSetBlob, sk_num(a), sizeof(MYBLOB), SetBlobCmp);
+		if (!(pTempMem = OPENSSL_malloc(totSize)))
+			{
+			ASN1err(ASN1_F_I2D_ASN1_SET,ERR_R_MALLOC_FAILURE);
+			return(0);
+			}
+
+/* Copy to temp mem */
+        p = pTempMem;
+        for(i=0; i<sk_num(a); ++i)
+		{
+                memcpy(p, rgSetBlob[i].pbData, rgSetBlob[i].cbData);
+                p += rgSetBlob[i].cbData;
+		}
+
+/* Copy back to user mem*/
+        memcpy(pStart, pTempMem, totSize);
+        OPENSSL_free(pTempMem);
+        OPENSSL_free(rgSetBlob);
+
+        return(r);
+        }
+
+EXPORT_C STACK *d2i_ASN1_SET(STACK **a, const unsigned char **pp, long length,
+		    d2i_of_void *d2i, void (*free_func)(void *), int ex_tag,
+		    int ex_class)
+	{
+	ASN1_const_CTX c;
+	STACK *ret=NULL;
+
+	if ((a == NULL) || ((*a) == NULL))
+		{
+		if ((ret=sk_new_null()) == NULL)
+			{
+			ASN1err(ASN1_F_D2I_ASN1_SET,ERR_R_MALLOC_FAILURE);
+			goto err;
+			}
+		}
+	else
+		ret=(*a);
+
+	c.p= *pp;
+	c.max=(length == 0)?0:(c.p+length);
+
+	c.inf=ASN1_get_object(&c.p,&c.slen,&c.tag,&c.xclass,c.max-c.p);
+	if (c.inf & 0x80) goto err;
+	if (ex_class != c.xclass)
+		{
+		ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_CLASS);
+		goto err;
+		}
+	if (ex_tag != c.tag)
+		{
+		ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_TAG);
+		goto err;
+		}
+	if ((c.slen+c.p) > c.max)
+		{
+		ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_LENGTH_ERROR);
+		goto err;
+		}
+	/* check for infinite constructed - it can be as long
+	 * as the amount of data passed to us */
+	if (c.inf == (V_ASN1_CONSTRUCTED+1))
+		c.slen=length+ *pp-c.p;
+	c.max=c.p+c.slen;
+
+	while (c.p < c.max)
+		{
+		char *s;
+
+		if (M_ASN1_D2I_end_sequence()) break;
+		/* XXX: This was called with 4 arguments, incorrectly, it seems
+		   if ((s=func(NULL,&c.p,c.slen,c.max-c.p)) == NULL) */
+		if ((s=d2i(NULL,&c.p,c.slen)) == NULL)
+			{
+			ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_ERROR_PARSING_SET_ELEMENT);
+			asn1_add_error(*pp,(int)(c.q- *pp));
+			goto err;
+			}
+		if (!sk_push(ret,s)) goto err;
+		}
+	if (a != NULL) (*a)=ret;
+	*pp=c.p;
+	return(ret);
+err:
+	if ((ret != NULL) && ((a == NULL) || (*a != ret)))
+		{
+		if (free_func != NULL)
+			sk_pop_free(ret,free_func);
+		else
+			sk_free(ret);
+		}
+	return(NULL);
+	}
+
+#endif