#include <stdio.h>
#include "cryptlib.h"
#include <openssl/asn1.h>
+#include <openssl/bn.h>
-ASN1_INTEGER *ASN1_INTEGER_new(void)
-{ return M_ASN1_INTEGER_new();}
-
-void ASN1_INTEGER_free(ASN1_INTEGER *x)
-{ M_ASN1_INTEGER_free(x);}
-
-ASN1_INTEGER *ASN1_INTEGER_dup(ASN1_INTEGER *x)
+ASN1_INTEGER *ASN1_INTEGER_dup(const ASN1_INTEGER *x)
{ return M_ASN1_INTEGER_dup(x);}
-int ASN1_INTEGER_cmp(ASN1_INTEGER *x, ASN1_INTEGER *y)
-{ return M_ASN1_INTEGER_cmp(x,y);}
+int ASN1_INTEGER_cmp(const ASN1_INTEGER *x, const ASN1_INTEGER *y)
+ {
+ int neg, ret;
+ /* Compare signs */
+ neg = x->type & V_ASN1_NEG;
+ if (neg != (y->type & V_ASN1_NEG))
+ {
+ if (neg)
+ return -1;
+ else
+ return 1;
+ }
-/* Output ASN1 INTEGER including tag+length */
+ ret = ASN1_STRING_cmp(x, y);
-int i2d_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
-{
- int len, ret;
- len = i2c_ASN1_INTEGER(a, NULL);
- ret=ASN1_object_size(0,len,V_ASN1_INTEGER);
- if(pp) {
- ASN1_put_object(pp,0,ret,V_ASN1_INTEGER,V_ASN1_UNIVERSAL);
- i2c_ASN1_INTEGER(a, pp);
+ if (neg)
+ return -ret;
+ else
+ return ret;
}
- return ret;
-}
+
/*
* This converts an ASN1 INTEGER into its content encoding.
int pad=0,ret,i,neg;
unsigned char *p,*n,pb=0;
- if ((a == NULL) || (a->data == NULL)) return(0);
+ if (a == NULL) return(0);
neg=a->type & V_ASN1_NEG;
if (a->length == 0)
ret=1;
return(ret);
}
-/* Convert DER encoded ASN1 INTEGER to ASN1_INTEGER structure */
-ASN1_INTEGER *d2i_ASN1_INTEGER(ASN1_INTEGER **a, unsigned char **pp,
- long length)
-{
- unsigned char *p;
- long len;
- int i;
- int inf,tag,xclass;
- ASN1_INTEGER *ret;
-
- p= *pp;
- inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
- if (inf & 0x80)
- {
- i=ASN1_R_BAD_OBJECT_HEADER;
- goto err;
- }
-
- if (tag != V_ASN1_INTEGER)
- {
- i=ASN1_R_EXPECTING_AN_INTEGER;
- goto err;
- }
- ret = c2i_ASN1_INTEGER(a, &p, len);
- if(ret) *pp = p;
- return ret;
-err:
- ASN1err(ASN1_F_D2I_ASN1_INTEGER,i);
- return(NULL);
-
-}
-
-
/* Convert just ASN1 INTEGER content octets to ASN1_INTEGER structure */
-ASN1_INTEGER *c2i_ASN1_INTEGER(ASN1_INTEGER **a, unsigned char **pp,
+ASN1_INTEGER *c2i_ASN1_INTEGER(ASN1_INTEGER **a, const unsigned char **pp,
long len)
{
ASN1_INTEGER *ret=NULL;
- unsigned char *p,*to,*s, *pend;
+ const unsigned char *p, *pend;
+ unsigned char *to,*s;
int i;
if ((a == NULL) || ((*a) == NULL))
*pp=pend;
return(ret);
err:
- ASN1err(ASN1_F_D2I_ASN1_INTEGER,i);
+ ASN1err(ASN1_F_C2I_ASN1_INTEGER,i);
if ((ret != NULL) && ((a == NULL) || (*a != ret)))
M_ASN1_INTEGER_free(ret);
return(NULL);
* with its MSB set as negative (it doesn't add a padding zero).
*/
-ASN1_INTEGER *d2i_ASN1_UINTEGER(ASN1_INTEGER **a, unsigned char **pp,
+ASN1_INTEGER *d2i_ASN1_UINTEGER(ASN1_INTEGER **a, const unsigned char **pp,
long length)
{
ASN1_INTEGER *ret=NULL;
- unsigned char *p,*to,*s;
+ const unsigned char *p;
+ unsigned char *s;
long len;
int inf,tag,xclass;
int i;
i=ERR_R_MALLOC_FAILURE;
goto err;
}
- to=s;
ret->type=V_ASN1_INTEGER;
if(len) {
if ((*p == 0) && (len != 1))
int ASN1_INTEGER_set(ASN1_INTEGER *a, long v)
{
- int i,j,k;
+ int j,k;
+ unsigned int i;
unsigned char buf[sizeof(long)+1];
- long d;
- a->type=V_ASN1_INTEGER;
- if (a->length < (sizeof(long)+1))
+ if (a->length < (int)(sizeof(long)+1))
{
if (a->data != NULL)
OPENSSL_free(a->data);
ASN1err(ASN1_F_ASN1_INTEGER_SET,ERR_R_MALLOC_FAILURE);
return(0);
}
- d=v;
- if (d < 0)
+ if (v < 0)
{
- d= -d;
+ v= -v;
a->type=V_ASN1_NEG_INTEGER;
}
+ else
+ a->type=V_ASN1_INTEGER;
for (i=0; i<sizeof(long); i++)
{
- if (d == 0) break;
- buf[i]=(int)d&0xff;
- d>>=8;
+ if (v == 0) break;
+ buf[i]=(int)v&0xff;
+ v>>=8;
}
j=0;
for (k=i-1; k >=0; k--)
return(1);
}
-long ASN1_INTEGER_get(ASN1_INTEGER *a)
+long ASN1_INTEGER_get(const ASN1_INTEGER *a)
{
int neg=0,i;
long r=0;
if (i == V_ASN1_NEG_INTEGER)
neg=1;
else if (i != V_ASN1_INTEGER)
- return(0);
+ return -1;
- if (a->length > sizeof(long))
+ if (a->length > (int)sizeof(long))
{
- /* hmm... a bit ugly */
- return(0xffffffffL);
+ /* hmm... a bit ugly, return all ones */
+ return -1;
}
if (a->data == NULL)
- return(0);
+ return 0;
for (i=0; i<a->length; i++)
{
return(r);
}
-ASN1_INTEGER *BN_to_ASN1_INTEGER(BIGNUM *bn, ASN1_INTEGER *ai)
+ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai)
{
ASN1_INTEGER *ret;
int len,j;
ASN1err(ASN1_F_BN_TO_ASN1_INTEGER,ERR_R_NESTED_ASN1_ERROR);
goto err;
}
- if(bn->neg) ret->type = V_ASN1_NEG_INTEGER;
+ if (BN_is_negative(bn))
+ ret->type = V_ASN1_NEG_INTEGER;
else ret->type=V_ASN1_INTEGER;
j=BN_num_bits(bn);
len=((j == 0)?0:((j/8)+1));
- ret->data=(unsigned char *)OPENSSL_malloc(len+4);
+ if (ret->length < len+4)
+ {
+ unsigned char *new_data=OPENSSL_realloc(ret->data, len+4);
+ if (!new_data)
+ {
+ ASN1err(ASN1_F_BN_TO_ASN1_INTEGER,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ ret->data=new_data;
+ }
ret->length=BN_bn2bin(bn,ret->data);
+ /* Correct zero case */
+ if(!ret->length)
+ {
+ ret->data[0] = 0;
+ ret->length = 1;
+ }
return(ret);
err:
if (ret != ai) M_ASN1_INTEGER_free(ret);
return(NULL);
}
-BIGNUM *ASN1_INTEGER_to_BN(ASN1_INTEGER *ai, BIGNUM *bn)
+BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn)
{
BIGNUM *ret;
if ((ret=BN_bin2bn(ai->data,ai->length,bn)) == NULL)
ASN1err(ASN1_F_ASN1_INTEGER_TO_BN,ASN1_R_BN_LIB);
- if(ai->type == V_ASN1_NEG_INTEGER) bn->neg = 1;
+ else if(ai->type == V_ASN1_NEG_INTEGER)
+ BN_set_negative(ret, 1);
return(ret);
}
projects / openssl.git / blobdiff