use 'const char' in parser function

diff --git a/include/ulogd/conffile.h b/include/ulogd/conffile.h
index d16aed837c00ce57b8724e67718ad02d18fa18a5..826d9d5fefd4ee9e7c72b5d053951ed5a9897380 100644 (file)
--- a/include/ulogd/conffile.h
+++ b/include/ulogd/conffile.h
@@ -49,7 +49,7 @@ struct config_entry {
        union {
                char string[CONFIG_VAL_STRING_LEN];
                int value;
-               int (*parser)(char *argstr);
+               int (*parser)(const char *argstr);
        } u;
 };