Turn secp256k1_ec_pubkey_serialize outlen to in/out

2015-11-05 06:01:56 +01:00
parent 970164dace
commit 06aeea555e
4 changed files with 15 additions and 10 deletions
--- a/src/secp256k1.c
+++ b/src/secp256k1.c
@@ -173,6 +173,7 @@ int secp256k1_ec_pubkey_serialize(const secp256k1_context* ctx, unsigned char *o
    (void)ctx;
    VERIFY_CHECK(ctx != NULL);
    ARG_CHECK(outputlen != NULL);
+    ARG_CHECK(*outputlen >= ((flags & SECP256K1_FLAGS_BIT_COMPRESSION) ? 33 : 65));
    len = *outputlen;
    *outputlen = 0;
    ARG_CHECK(output != NULL);