Add __attribute__((warn_unused_result)) to crypto functions.

[meshlink] / src / digest.h

diff --git a/src/digest.h b/src/digest.h
index bd9e5875eb64e61dd0d6547bbaea3ed7152f1b29..1e149456124aa8bef876bb2f62df1a891115d642 100644 (file)
--- a/src/digest.h
+++ b/src/digest.h
@@ -28,9 +28,9 @@ extern digest_t *digest_open_by_name(const char *name, int maclength) __attribut
 extern digest_t *digest_open_by_nid(int nid, int maclength) __attribute__ ((__malloc__));
 extern digest_t *digest_open_sha1(int maclength) __attribute__ ((__malloc__));
 extern void digest_close(digest_t *);
-extern bool digest_create(digest_t *, const void *indata, size_t inlen, void *outdata);
-extern bool digest_verify(digest_t *, const void *indata, size_t inlen, const void *digestdata);
-extern bool digest_set_key(digest_t *, const void *key, size_t len);
+extern bool digest_create(digest_t *, const void *indata, size_t inlen, void *outdata) __attribute__ ((__warn_unused_result__));
+extern bool digest_verify(digest_t *, const void *indata, size_t inlen, const void *digestdata) __attribute__ ((__warn_unused_result__));
+extern bool digest_set_key(digest_t *, const void *key, size_t len) __attribute__ ((__warn_unused_result__));
 extern int digest_get_nid(const digest_t *);
 extern size_t digest_keylength(const digest_t *);
 extern size_t digest_length(const digest_t *);