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+/* 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) */
+int i2d_ASN1_SET(STACK_OF(OPENSSL_BLOCK) *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_OPENSSL_BLOCK_num(a)-1; i>=0; i--)
+ ret+=i2d(sk_OPENSSL_BLOCK_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_OPENSSL_BLOCK_num(a) < 2))
+ {
+ for (i=0; i<sk_OPENSSL_BLOCK_num(a); i++)
+ i2d(sk_OPENSSL_BLOCK_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 = OPENSSL_malloc(sk_OPENSSL_BLOCK_num(a) * sizeof(MYBLOB));
+ if (rgSetBlob == NULL)
+ {
+ ASN1err(ASN1_F_I2D_ASN1_SET,ERR_R_MALLOC_FAILURE);
+ return(0);
+ }
+
+ for (i=0; i<sk_OPENSSL_BLOCK_num(a); i++)
+ {
+ rgSetBlob[i].pbData = p; /* catch each set encode blob */
+ i2d(sk_OPENSSL_BLOCK_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_OPENSSL_BLOCK_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_OPENSSL_BLOCK_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);
+ }
+
+STACK_OF(OPENSSL_BLOCK) *d2i_ASN1_SET(STACK_OF(OPENSSL_BLOCK) **a,
+ const unsigned char **pp,
+ long length, d2i_of_void *d2i,
+ void (*free_func)(OPENSSL_BLOCK), int ex_tag,
+ int ex_class)
+ {
+ ASN1_const_CTX c;
+ STACK_OF(OPENSSL_BLOCK) *ret=NULL;
+
+ if ((a == NULL) || ((*a) == NULL))
+ {
+ if ((ret=sk_OPENSSL_BLOCK_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.p- *pp));
+ goto err;
+ }
+ if (!sk_OPENSSL_BLOCK_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_OPENSSL_BLOCK_pop_free(ret,free_func);
+ else
+ sk_OPENSSL_BLOCK_free(ret);
+ }
+ return(NULL);
+ }
+
+#endif
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