annotate vfprintf-like 'vcomplain' function

utils_complain.c:56:40: warning: format string is not a string literal
[-Wformat-nonliteral]
        vsnprintf (message, sizeof (message), format, ap);
                                              ^~~~~~

diff --git a/src/daemon/utils_complain.c b/src/daemon/utils_complain.c
index d028c06..69909bb 100644 (file)
--- a/src/daemon/utils_complain.c
+++ b/src/daemon/utils_complain.c
@@ -32,6 +32,7 @@
 #include "plugin.h"
 
 /* vcomplain returns 0 if it did not report, 1 else */
+__attribute__ ((format (printf, 3, 0)))
 static int vcomplain (int level, c_complain_t *c,
                const char *format, va_list ap)
 {