inferno-os tree was separated from the inferno-os-android (separated from the Android driver)

1 files changed, 35 insertions, 0 deletions

diff --git a/lib9/sprint.c b/lib9/sprint.c
new file mode 100644
index 0000000..d8b8b8e
--- /dev/null
+++ b/lib9/sprint.c
@@ -0,0 +1,35 @@
+/*
+ * The authors of this software are Rob Pike and Ken Thompson.
+ *              Copyright (c) 2002 by Lucent Technologies.
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose without fee is hereby granted, provided that this entire notice
+ * is included in all copies of any software which is or includes a copy
+ * or modification of this software and in all copies of the supporting
+ * documentation for such software.
+ * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTY.  IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY
+ * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
+ * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
+ */
+#include "lib9.h"
+
+int
+sprint(char *buf, char *fmt, ...)
+{
+	int n;
+	uint len;
+	va_list args;
+
+	len = 1<<30;  /* big number, but sprint is deprecated anyway */
+	/*
+	 * the stack might be near the top of memory, so
+	 * we must be sure not to overflow a 32-bit pointer.
+	 */
+	if((uintptr)buf+len < (uintptr)buf)
+		len = -(uint)buf-1;
+
+	va_start(args, fmt);
+	n = vsnprint(buf, len, fmt, args);
+	va_end(args);
+	return n;
+}