X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fasn1%2Fa_set.c;h=5fb58655757dfd0361990032a1c5d9aa1e3a04a4;hb=6df2a8c664493eda491c7a996b4855ed5b0685c4;hp=8cde8486894c3f83e6f095fff914c0b51f1a46ea;hpb=26a3a48d65c7464b400ec1de439994d7f0d25fed;p=oweals%2Fopenssl.git

diff --git a/crypto/asn1/a_set.c b/crypto/asn1/a_set.c
index 8cde848689..5fb5865575 100644
--- a/crypto/asn1/a_set.c
+++ b/crypto/asn1/a_set.c
@@ -5,21 +5,21 @@
  * 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:
@@ -34,10 +34,10 @@
  *     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 
+ * 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
@@ -49,7 +49,7 @@
  * 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
@@ -57,161 +57,187 @@
  */
 
 #include <stdio.h>
+#include <limits.h>
 #include "cryptlib.h"
 #include <openssl/asn1_mac.h>
 
-typedef struct
-    {
+#ifndef NO_ASN1_OLD
+
+typedef struct {
     unsigned char *pbData;
     int cbData;
-    } MYBLOB;
+} MYBLOB;
 
-/* SetBlobCmp
- * This function compares two elements of SET_OF block
+/*
+ * SetBlobCmp This function compares two elements of SET_OF block
  */
-static int SetBlobCmp(const void *elem1, const void *elem2 )
-    {
+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;
+               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--) {
+        int tmplen = i2d(sk_OPENSSL_BLOCK_value(a, i), NULL);
+        if (tmplen > INT_MAX - ret)
+            return -1;
+        ret += i2d(sk_OPENSSL_BLOCK_value(a, i), NULL);
     }
+    r = ASN1_object_size(1, ret, ex_tag);
+    if (pp == NULL || r == -1)
+        return (r);
 
-/* int is_set:  if TRUE, then sort the contents (i.e. it isn't a SEQUENCE)    */
-int i2d_ASN1_SET(STACK *a, unsigned char **pp, int (*func)(), 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+=func(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);
+    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++)
-                	func(sk_value(a,i),&p);
-
-		*pp=p;
-		return(r);
-		}
-
-        pStart  = p; /* Catch the beg of Setblobs*/
-        rgSetBlob = (MYBLOB *)OPENSSL_malloc( sk_num(a) * sizeof(MYBLOB)); /* In this array
-we will store the SET blobs */
-
-        for (i=0; i<sk_num(a); i++)
-	        {
-                rgSetBlob[i].pbData = p;  /* catch each set encode blob */
-                func(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);
-        pTempMem = OPENSSL_malloc(totSize);
+    /* 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_num(a); ++i)
-		{
-                memcpy(p, rgSetBlob[i].pbData, rgSetBlob[i].cbData);
-                p += rgSetBlob[i].cbData;
-		}
+    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);
+    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);
+}
 
-STACK *d2i_ASN1_SET(STACK **a, unsigned char **pp, long length,
-	     char *(*func)(), void (*free_func)(), int ex_tag, int ex_class)
-	{
-	ASN1_CTX c;
-	STACK *ret=NULL;
-
-	if ((a == NULL) || ((*a) == NULL))
-		{ if ((ret=sk_new(NULL)) == NULL) 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;
-		if ((s=func(NULL,&c.p,c.slen,c.max-c.p)) == 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