1 files changed, 38 insertions, 0 deletions
diff --git a/410user/libstring/strncmp.c b/410user/libstring/strncmp.c
new file mode 100644
index 0000000..6ce3f30
--- /dev/null
+++ b/410user/libstring/strncmp.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 1994 The University of Utah and
+ * the Computer Systems Laboratory (CSL).  All rights reserved.
+ *
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
+ * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
+ * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * CSL requests users of this software to return to csl-dist@cs.utah.edu any
+ * improvements that they make and grant CSL redistribution rights.
+ */
+
+#include <string.h>
+
+int
+strncmp(const char *s1, const char *s2, size_t n)
+{
+	while (1)
+	{
+		if (n <= 0)
+			return 0;
+		if (*s1 != *s2)
+			return *s1 - *s2;
+		if (*s1 == 0)
+			return 0;
+
+		s1++;
+		s2++;
+		n--;
+	}
+}
+