--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/libc/strcat.c	Fri Oct 28 22:20:26 2016 +0000
@@ -0,0 +1,19 @@
+/*
+ * Concatenate s2 on the end of s1.  S1's space must be large enough.
+ * Return s1.
+ */
+
+char *
+strcat(s1, s2)
+	register char *s1, *s2;
+{
+	register char *os1;
+
+	os1 = s1;
+	while (*s1++)
+		;
+	--s1;
+	while (*s1++ = *s2++)
+		;
+	return(os1);
+}