ASN1 for binary curves

[openssl.git] / crypto / asn1 / a_enum.c

diff --git a/crypto/asn1/a_enum.c b/crypto/asn1/a_enum.c
index b507c5ee44bb56c4189b0f97e3219ad38ba4d292..ad8f0ffd1ab3859c561d24f291f3428bb1366477 100644 (file)
--- a/crypto/asn1/a_enum.c
+++ b/crypto/asn1/a_enum.c
@@ -114,7 +114,7 @@ long ASN1_ENUMERATED_get(ASN1_ENUMERATED *a)
        if (i == V_ASN1_NEG_ENUMERATED)
                neg=1;
        else if (i != V_ASN1_ENUMERATED)
-               return(0);
+               return -1;
        
        if (a->length > sizeof(long))
                {
@@ -122,7 +122,7 @@ long ASN1_ENUMERATED_get(ASN1_ENUMERATED *a)
                return(0xffffffffL);
                }
        if (a->data == NULL)
-               return(0);
+               return 0;
 
        for (i=0; i<a->length; i++)
                {
@@ -151,7 +151,17 @@ ASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(BIGNUM *bn, ASN1_ENUMERATED *ai)
        else ret->type=V_ASN1_ENUMERATED;
        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);
        return(ret);
 err: