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authorDoug Hogan <[email protected]>2019-01-04 00:46:08 -0800
committerDoug Hogan <[email protected]>2019-01-08 01:11:58 -0800
commite4ecb3fd94ebae8eac89dbfb9376d78a5ac9a508 (patch)
tree71c062caef2ea083e4fff50ecc48fd1478b1d89f /lib/crypto/c_src
parent9b0739fd44adfc1a7d5b5b5f26df883cca8b9c41 (diff)
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Revamp term2point()
* Only set pptr on success
Diffstat (limited to 'lib/crypto/c_src')
-rw-r--r--lib/crypto/c_src/ec.c28
1 files changed, 14 insertions, 14 deletions
diff --git a/lib/crypto/c_src/ec.c b/lib/crypto/c_src/ec.c
index 51da577cd0..4fb9229edb 100644
--- a/lib/crypto/c_src/ec.c
+++ b/lib/crypto/c_src/ec.c
@@ -268,29 +268,29 @@ static ERL_NIF_TERM point2term(ErlNifEnv* env,
int term2point(ErlNifEnv* env, ERL_NIF_TERM term, EC_GROUP *group, EC_POINT **pptr)
{
- int ret = 0;
ErlNifBinary bin;
- EC_POINT *point;
+ EC_POINT *point = NULL;
- if (!enif_inspect_binary(env,term,&bin)) {
- return 0;
- }
+ if (!enif_inspect_binary(env, term, &bin))
+ goto err;
- if ((*pptr = point = EC_POINT_new(group)) == NULL) {
- return 0;
- }
+ if ((point = EC_POINT_new(group)) == NULL)
+ goto err;
/* set the point conversion form */
EC_GROUP_set_point_conversion_form(group, (point_conversion_form_t)(bin.data[0] & ~0x01));
/* extract the ec point */
- if (!EC_POINT_oct2point(group, point, bin.data, bin.size, NULL)) {
- EC_POINT_free(point);
- *pptr = NULL;
- } else
- ret = 1;
+ if (!EC_POINT_oct2point(group, point, bin.data, bin.size, NULL))
+ goto err;
- return ret;
+ *pptr = point;
+ return 1;
+
+ err:
+ if (point)
+ EC_POINT_free(point);
+ return 0;
}
int get_ec_key(ErlNifEnv* env,