improves detection of formatting error

Change-Id: I426013cb841d6826c4904f68bf5fa1c653dd972c
Signed-off-by: José Bollo <jose.bollo@iot.bzh>

diff --git a/include/afb/afb-plugin.h b/include/afb/afb-plugin.h
index 6f5cd08..81df3a8 100644 (file)
--- a/include/afb/afb-plugin.h
+++ b/include/afb/afb-plugin.h
@@ -213,6 +213,7 @@ static inline struct sd_bus *afb_daemon_get_system_bus(struct afb_daemon daemon)
  * 'file' and 'line' are indicators of position of the code in source files.
  * 'daemon' MUST be the daemon given in interface when activating the plugin.
  */
+static inline void afb_daemon_verbose(struct afb_daemon daemon, int level, const char *file, int line, const char *fmt, ...) __attribute__((format(printf, 5, 6)));
 static inline void afb_daemon_verbose(struct afb_daemon daemon, int level, const char *file, int line, const char *fmt, ...)
 {
        va_list args;

diff --git a/src/verbose.h b/src/verbose.h
index 3382d39..7e10d25 100644 (file)
--- a/src/verbose.h
+++ b/src/verbose.h
@@ -23,7 +23,7 @@
 extern int verbosity;
 
 extern void verbose_set_name(const char *name, int authority);
-extern void verbose(int level, const char *file, int line, const char *fmt, ...);
+extern void verbose(int level, const char *file, int line, const char *fmt, ...) __attribute__((format(printf, 4, 5)));
 extern void vverbose(int level, const char *file, int line, const char *fmt, va_list args);
 
 # define ERROR(...)   do{if(verbosity>=0)verbose(3,__FILE__,__LINE__,__VA_ARGS__);}while(0)