/* crypto/asn1/a_set.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* 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:
* 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
* 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
*/
#include <stdio.h>
+#include <limits.h>
#include "cryptlib.h"
-#include "asn1_mac.h"
+#include <openssl/asn1_mac.h>
+
+#ifndef NO_ASN1_OLD
+
+typedef struct {
+ unsigned char *pbData;
+ int cbData;
+} MYBLOB;
-/* ASN1err(ASN1_F_ASN1_TYPE_NEW,ERR_R_MALLOC_FAILURE);
+/*
+ * 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--) {
+ 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);
+
+ 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;
-int i2d_ASN1_SET(a,pp,func,ex_tag,ex_class)
-STACK *a;
-unsigned char **pp;
-int (*func)();
-int ex_tag;
-int ex_class;
- {
- int ret=0,r;
- int i;
- unsigned char *p;
-
- 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);
- for (i=0; i<sk_num(a); i++)
- func(sk_value(a,i),&p);
-
- *pp=p;
- return(r);
- }
-
-STACK *d2i_ASN1_SET(a,pp,length,func,ex_tag,ex_class)
-STACK **a;
-unsigned char **pp;
-long length;
-char *(*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) 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))) sk_free(ret);
- return(NULL);
- }
+ 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
projects / openssl.git / blobdiff