main: fix format string related warnings for log/debug printf functions

Signed-off-by: Felix Fietkau <nbd@nbd.name>

2 files changed, 5 insertions, 3 deletions

diff --git a/main.c b/main.c
index 4c4b1ff..ac0fcfe 100644
--- a/main.c
+++ b/main.c
@@ -89,7 +89,7 @@ netifd_delete_process(struct netifd_process *proc)
 	close(proc->log.fd.fd);
 }
 
-static void
+static void __attribute__((format (printf, 1, 0)))
 netifd_udebug_vprintf(const char *format, va_list ap)
 {
 	if (!udebug_buf_valid(&udb_log))
diff --git a/netifd.h b/netifd.h
index a462abd..0c0537f 100644
--- a/netifd.h
+++ b/netifd.h
@@ -100,10 +100,12 @@ struct netifd_process {
 	bool log_overflow;
 };
 
-void netifd_udebug_printf(const char *format, ...);
+void netifd_udebug_printf(const char *format, ...)
+	__attribute__((format (printf, 1, 2)));
 void netifd_udebug_config(struct udebug_ubus *ctx, struct blob_attr *data,
 			  bool enabled);
-void netifd_log_message(int priority, const char *format, ...);
+void netifd_log_message(int priority, const char *format, ...)
+	 __attribute__((format (printf, 2, 3)));
 
 int netifd_start_process(const char **argv, char **env, struct netifd_process *proc);
 void netifd_kill_process(struct netifd_process *proc);