{ return M_ASN1_INTEGER_new();}
void ASN1_INTEGER_free(ASN1_INTEGER *x)
-{ return M_ASN1_INTEGER_free(x);}
+{ M_ASN1_INTEGER_free(x);}
ASN1_INTEGER *ASN1_INTEGER_dup(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);}
+/* Output ASN1 INTEGER including tag+length */
+
+int i2d_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
+{
+ int len, ret;
+ if(!a) return 0;
+ len = i2c_ASN1_INTEGER(a, NULL);
+ ret=ASN1_object_size(0,len,V_ASN1_INTEGER);
+ if(pp) {
+ ASN1_put_object(pp,0,len,V_ASN1_INTEGER,V_ASN1_UNIVERSAL);
+ i2c_ASN1_INTEGER(a, pp);
+ }
+ 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;
+ 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);
}
+/* Convert DER encoded ASN1 INTEGER to ASN1_INTEGER structure */
ASN1_INTEGER *d2i_ASN1_INTEGER(ASN1_INTEGER **a, unsigned char **pp,
long length)
- {
- ASN1_INTEGER *ret=NULL;
- unsigned char *p,*to,*s, *pend;
+{
+ unsigned char *p;
long len;
- int inf,tag,xclass;
int i;
-
- if ((a == NULL) || ((*a) == NULL))
- {
- if ((ret=M_ASN1_INTEGER_new()) == NULL) return(NULL);
- ret->type=V_ASN1_INTEGER;
- }
- else
- ret=(*a);
+ int inf,tag,xclass;
+ ASN1_INTEGER *ret;
p= *pp;
inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
- pend = p + len;
if (inf & 0x80)
{
i=ASN1_R_BAD_OBJECT_HEADER;
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,
+ long len)
+ {
+ ASN1_INTEGER *ret=NULL;
+ unsigned char *p,*to,*s, *pend;
+ int i;
+
+ if ((a == NULL) || ((*a) == NULL))
+ {
+ if ((ret=M_ASN1_INTEGER_new()) == NULL) return(NULL);
+ ret->type=V_ASN1_INTEGER;
+ }
+ else
+ ret=(*a);
+
+ p= *pp;
+ pend = p + len;
- /* 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;
- if (*p & 0x80) /* a negative number */
+ if(!len) {
+ /* Strictly speaking this is an illegal INTEGER but we
+ * tolerate it.
+ */
+ ret->type=V_ASN1_INTEGER;
+ } else if (*p & 0x80) /* a negative number */
{
ret->type=V_ASN1_NEG_INTEGER;
if ((*p == 0xff) && (len != 1)) {
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;
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).
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;
+ ret->type=V_ASN1_INTEGER;
+ if(len) {
if ((*p == 0) && (len != 1))
{
p++;
}
memcpy(s,p,(int)len);
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;
if (a->length < (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)
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);
+ ret->data=(unsigned char *)OPENSSL_malloc(len+4);
ret->length=BN_bn2bin(bn,ret->data);
return(ret);
err:
if(ai->type == V_ASN1_NEG_INTEGER) bn->neg = 1;
return(ret);
}
+
+IMPLEMENT_STACK_OF(ASN1_INTEGER)
+IMPLEMENT_ASN1_SET_OF(ASN1_INTEGER)
projects / openssl.git / blobdiff