Add stricter checks for netnames.

[tinc] / src / digest.h

diff --git a/src/digest.h b/src/digest.h
index 848b911..204048a 100644 (file)
--- a/src/digest.h
+++ b/src/digest.h
@@ -22,18 +22,22 @@
 
 #define DIGEST_MAX_SIZE 64
 
+#ifndef DISABLE_LEGACY
+
 typedef struct digest digest_t;
 
-extern digest_t *digest_open_by_name(const char *name, int maclength);
-extern digest_t *digest_open_by_nid(int nid, int maclength);
-extern digest_t *digest_open_sha1(int maclength);
+extern digest_t *digest_open_by_name(const char *name, int maclength) __attribute__ ((__malloc__));
+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 *);
 extern bool digest_active(const digest_t *);
 
 #endif
+
+#endif