summaryrefslogtreecommitdiff
path: root/lib9/sprint.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib9/sprint.c')
-rw-r--r--lib9/sprint.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/lib9/sprint.c b/lib9/sprint.c
new file mode 100644
index 00000000..86c79a32
--- /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(buf+len < buf)
+ len = -(uint)buf-1;
+
+ va_start(args, fmt);
+ n = vsnprint(buf, len, fmt, args);
+ va_end(args);
+ return n;
+}