diff --git a/lib/libio.c b/lib/libio.c
index dfac121..295c9b3 100644
--- a/lib/libio.c
+++ b/lib/libio.c
@@ -10,6 +10,11 @@ _strlen(char *s){
 	return i;
 }
 
+int
+fdprint(int fd, char *s){
+	write(fd, s, _strlen(s));
+}
+
 /* SLOW. DO NOT USE. */
 static int write1(int fd, int c){
 	while(write(fd, &c, 1) != 1);
diff --git a/lib/libio.h b/lib/libio.h
index 02bec95..0dedf40 100644
--- a/lib/libio.h
+++ b/lib/libio.h
@@ -1,5 +1,6 @@
 #ifndef _LIBIO_H
 #	define _LIBIO_H
+int fdprint(int fd, char *s);
 int fdputd(int fd, int d);
 int fdputs(int fd, char *s);
 int parse_uint(char *s);