Remove v5 keyid support when libnettle not present

v5 key fingerprints are SHA256 based. We have fallbacks for MD5 + SHA1
when libnettle is not present, but there's no intent to provide a SHA256
fallback, and we're close to the point where support for building
without libnettle will be removed entirely.

diff --git a/keyid.c b/keyid.c
index d03d47a907962b5a40ebfff22baa992c5301f022..6c789fdfd74c0344396d33e71af0a56e0760e3ff 100644 (file)
--- a/keyid.c
+++ b/keyid.c
@@ -87,7 +87,9 @@ onak_status_t get_keyid(struct openpgp_publickey *publickey, uint64_t *keyid)
 onak_status_t get_fingerprint(struct openpgp_packet *packet,
        struct openpgp_fingerprint *fingerprint)
 {
+#ifdef HAVE_NETTLE
        struct sha256_ctx sha2_ctx;
+#endif
        struct sha1_ctx sha_ctx;
        struct md5_ctx md5_context;
        unsigned char c;
@@ -136,6 +138,7 @@ onak_status_t get_fingerprint(struct openpgp_packet *packet,
                sha1_digest(&sha_ctx, fingerprint->length, fingerprint->fp);
 
                break;
+#ifdef HAVE_NETTLE
        case 5:
                sha256_init(&sha2_ctx);
                /* RFC4880bis 12.2 */
@@ -155,6 +158,7 @@ onak_status_t get_fingerprint(struct openpgp_packet *packet,
                sha256_digest(&sha2_ctx, fingerprint->length, fingerprint->fp);
 
                break;
+#endif
        default:
                return ONAK_E_UNKNOWN_VER;
        }