#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();}
+ASN1_INTEGER *ASN1_INTEGER_dup(const ASN1_INTEGER *x)
+{ return M_ASN1_INTEGER_dup(x);}
-void ASN1_INTEGER_free(ASN1_INTEGER *x)
-{ M_ASN1_INTEGER_free(x);}
+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;
+ }
-ASN1_INTEGER *ASN1_INTEGER_dup(ASN1_INTEGER *x)
-{ return M_ASN1_INTEGER_dup(x);}
+ ret = ASN1_STRING_cmp(x, y);
-int ASN1_INTEGER_cmp(ASN1_INTEGER *x, ASN1_INTEGER *y)
-{ return M_ASN1_INTEGER_cmp(x,y);}
+ if (neg)
+ return -ret;
+ else
+ return ret;
+ }
+
/*
- * This converts an ASN1 INTEGER into its DER encoding.
+ * This converts an ASN1 INTEGER into its content encoding.
* The internal representation is an ASN1_STRING whose data is a big endian
* representation of the value, ignoring the sign. The sign is determined by
* the type: V_ASN1_INTEGER for positive and V_ASN1_NEG_INTEGER for negative.
* followed by optional zeros isn't padded.
*/
-int i2d_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
+int i2c_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
{
- int pad=0,ret,r,i,t;
+ int pad=0,ret,i,neg;
unsigned char *p,*n,pb=0;
- if ((a == NULL) || (a->data == NULL)) return(0);
- t=a->type;
+ if (a == NULL) return(0);
+ neg=a->type & V_ASN1_NEG;
if (a->length == 0)
ret=1;
else
{
ret=a->length;
i=a->data[0];
- if ((t == V_ASN1_INTEGER) && (i > 127)) {
+ if (!neg && (i > 127)) {
pad=1;
pb=0;
- } else if(t == V_ASN1_NEG_INTEGER) {
+ } else if(neg) {
if(i>128) {
pad=1;
pb=0xFF;
}
ret+=pad;
}
- r=ASN1_object_size(0,ret,V_ASN1_INTEGER);
- if (pp == NULL) return(r);
+ if (pp == NULL) return(ret);
p= *pp;
- ASN1_put_object(&p,0,ret,V_ASN1_INTEGER,V_ASN1_UNIVERSAL);
if (pad) *(p++)=pb;
if (a->length == 0) *(p++)=0;
- else if (t == V_ASN1_INTEGER) memcpy(p,a->data,(unsigned int)a->length);
+ else if (!neg) memcpy(p,a->data,(unsigned int)a->length);
else {
/* Begin at the end of the encoding */
n=a->data + a->length - 1;
for(;i > 0; i--) *(p--) = *(n--) ^ 0xff;
}
- *pp+=r;
- return(r);
+ *pp+=ret;
+ return(ret);
}
-ASN1_INTEGER *d2i_ASN1_INTEGER(ASN1_INTEGER **a, unsigned char **pp,
- long length)
+/* Convert just ASN1 INTEGER content octets to ASN1_INTEGER structure */
+
+ASN1_INTEGER *c2i_ASN1_INTEGER(ASN1_INTEGER **a, const unsigned char **pp,
+ long len)
{
ASN1_INTEGER *ret=NULL;
- unsigned char *p,*to,*s, *pend;
- long len;
- int inf,tag,xclass;
+ const unsigned char *p, *pend;
+ unsigned char *to,*s;
int i;
if ((a == NULL) || ((*a) == NULL))
ret=(*a);
p= *pp;
- inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
pend = p + len;
- if (inf & 0x80)
- {
- i=ASN1_R_BAD_OBJECT_HEADER;
- goto err;
- }
- if (tag != V_ASN1_INTEGER)
- {
- i=ASN1_R_EXPECTING_AN_INTEGER;
- goto err;
- }
-
- /* We must Malloc stuff, even for 0 bytes otherwise it
+ /* We must OPENSSL_malloc stuff, even for 0 bytes otherwise it
* signifies a missing NULL parameter. */
- s=(unsigned char *)Malloc((int)len+1);
+ s=(unsigned char *)OPENSSL_malloc((int)len+1);
if (s == NULL)
{
i=ERR_R_MALLOC_FAILURE;
memcpy(s,p,(int)len);
}
- if (ret->data != NULL) Free((char *)ret->data);
+ if (ret->data != NULL) OPENSSL_free(ret->data);
ret->data=s;
ret->length=(int)len;
if (a != NULL) (*a)=ret;
*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);
}
+
/* This is a version of d2i_ASN1_INTEGER that ignores the sign bit of
* ASN1 integers: some broken software can encode a positive INTEGER
* 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;
goto err;
}
- /* We must Malloc stuff, even for 0 bytes otherwise it
+ /* We must OPENSSL_malloc stuff, even for 0 bytes otherwise it
* signifies a missing NULL parameter. */
- s=(unsigned char *)Malloc((int)len+1);
+ s=(unsigned char *)OPENSSL_malloc((int)len+1);
if (s == NULL)
{
i=ERR_R_MALLOC_FAILURE;
goto err;
}
- to=s;
ret->type=V_ASN1_INTEGER;
if(len) {
if ((*p == 0) && (len != 1))
p+=len;
}
- if (ret->data != NULL) Free((char *)ret->data);
+ if (ret->data != NULL) OPENSSL_free(ret->data);
ret->data=s;
ret->length=(int)len;
if (a != NULL) (*a)=ret;
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)
- Free((char *)a->data);
- if ((a->data=(unsigned char *)Malloc(sizeof(long)+1)) != NULL)
+ OPENSSL_free(a->data);
+ if ((a->data=(unsigned char *)OPENSSL_malloc(sizeof(long)+1)) != NULL)
memset((char *)a->data,0,sizeof(long)+1);
}
if (a->data == NULL)
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 *)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);
}
+
+IMPLEMENT_STACK_OF(ASN1_INTEGER)
+IMPLEMENT_ASN1_SET_OF(ASN1_INTEGER)
projects / openssl.git / blobdiff