Add more checks and cleanup xcb wrappers

[wmpus] / util.c

diff --git a/util.c b/util.c
index 30df76c28a39d2e25320226545be0bfc8253904b..b589fd3d7247bbe5b554de84b520ec359b40d9d8 100644 (file)
--- a/util.c
+++ b/util.c
@@ -133,6 +133,17 @@ int str2num(char *str, int def)
        return end && *end == '\0' ? num : def;
 }
 
+int warn(char *fmt, ...)
+{
+       va_list ap;
+       va_start(ap, fmt);
+       fprintf(stderr, "Warning: ");
+       vfprintf(stderr, fmt, ap);
+       fprintf(stderr, "\n");
+       va_end(ap);
+       return 0;
+}
+
 int error(char *fmt, ...)
 {
        va_list ap;