1 files changed, 10 insertions, 0 deletions
diff --git a/src/libc/include/err.h b/src/libc/include/err.h
new file mode 100644
index 0000000..6b63c6c
--- /dev/null
+++ b/src/libc/include/err.h
@@ -0,0 +1,10 @@
+#pragma once
+#include <stdarg.h>
+
+_Noreturn void err(int ret, const char *fmt, ...);
+_Noreturn void errx(int ret, const char *fmt, ...);
+void warn(const char *fmt, ...);
+void warnx(const char *fmt, ...);
+
+void vwarn(const char *fmt, va_list args);
+void vwarnx(const char *fmt, va_list args);