1 files changed, 65 insertions, 0 deletions
diff --git a/410user/libstdio/sscanf.c b/410user/libstdio/sscanf.c
new file mode 100644
index 0000000..7f48ea9
--- /dev/null
+++ b/410user/libstdio/sscanf.c
@@ -0,0 +1,65 @@
+/* 
+ * Mach Operating System
+ * Copyright (c) 1991,1990,1989 Carnegie Mellon University
+ * 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.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+
+#include <stdarg.h>
+#include "doscan.h"
+
+static int
+readchar(arg)
+	void *arg;
+{
+	return *(*(unsigned char**)arg)++;
+}
+
+static void
+unchar(c, arg)
+	int c;
+	void *arg;
+{
+	(void)c;
+	(*(unsigned char**)arg)--;
+}
+
+int vsscanf(s, fmt, args)
+	char *s;
+	char *fmt;
+	va_list args;
+{
+	return _doscan(fmt, args, readchar, unchar, &s);
+}
+
+int sscanf(char *s, char *fmt, ...)
+{
+	va_list	args;
+	int vals;
+
+	va_start(args, fmt);
+	vals = vsscanf(s, fmt, args);
+	va_end(args);
+
+	return vals;
+}
+