diff --git a/src/lib9/strecpy.c b/src/lib9/strecpy.c
new file mode 100644
index 0000000..7d2f227
--- /dev/null
+++ b/src/lib9/strecpy.c
@@ -0,0 +1,16 @@
+#include <lib9.h>
+
+char*
+strecpy(char *to, char *e, char *from)
+{
+	if(to >= e)
+		return to;
+	to = memccpy(to, from, '\0', e - to);
+	if(to == nil){
+		to = e - 1;
+		*to = '\0';
+	}else{
+		to--;
+	}
+	return to;
+}