keyword: Make `keyword_cb`, and `set_keyword()` return an `int`

`set_keyword()` now checks the return value of the callback to determine
whether to return early, fallback to the default, or return an error
if the callback returns true, false, and -1 respectivly.

1 files changed, 2 insertions, 2 deletions

diff --git a/keyword.h b/keyword.h
index b4f4fa2..fa667a2 100644
--- a/keyword.h
+++ b/keyword.h
@@ -6,7 +6,7 @@
 typedef enum keyword_type keyword_type;
 typedef struct keyword keyword;
 typedef union keyword_val keyword_val;
-typedef void (keyword_cb)(void *ctx, void *ret, const keyword *key, keyword_val val);
+typedef int (keyword_cb)(void *ctx, void *ret, const keyword *key, keyword_val val);
 
 enum keyword_type {
 	TYPE_NONE,
@@ -35,7 +35,7 @@ union keyword_val {
 };
 
 extern keyword_val get_keyword_value(const keyword *key, char *value, int *error);
-extern void set_keyword(const keyword *key, keyword_val val, void *ret, void *ctx);
+extern int set_keyword(const keyword *key, keyword_val val, void *ret, void *ctx);
 extern keyword_val parse_keyword(const keyword *key, char *key_str, char *value, int *error);
 extern int parse_keywords(const keyword **keys, char *key, char *value, void *ret, void *ctx);
 #endif