initial check-in, version 0.5.0

src/string/strncat.c

@@ -0,0 +1,10 @@
+#include <string.h>
+
+char *strncat(char *d, const char *s, size_t n)
+{
+	char *a = d;
+	d += strlen(d);
+	while (n && (*d++ = *s++)) n--;
+	*d++ = 0;
+	return a;
+}