Libc-498.tar.gz

[apple/libc.git] / include / secure / _stdio.h

diff --git a/include/secure/_stdio.h b/include/secure/_stdio.h
new file mode 100644 (file)
index 0000000..b5a29b6
--- /dev/null
+++ b/include/secure/_stdio.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2007 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#ifndef _STDIO_H_
+ #error error "Never use <secure/_stdio.h> directly; include <stdio.h> instead."
+#endif
+
+#ifndef _SECURE__STDIO_H_
+#define _SECURE__STDIO_H_
+
+#include <secure/_common.h>
+
+#if _USE_FORTIFY_LEVEL > 0
+
+#undef sprintf
+#undef vsprintf
+#undef snprintf
+#undef vsnprintf
+
+/* sprintf, vsprintf, snprintf, vsnprintf */
+
+extern int __sprintf_chk (char * __restrict, int, size_t,
+                         const char * __restrict, ...)
+  __DARWIN_LDBL_COMPAT (__sprintf_chk);
+
+#define sprintf(str, ...) \
+  __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
+
+extern int __snprintf_chk (char * __restrict, size_t, int, size_t,
+                          const char * __restrict, ...)
+  __DARWIN_LDBL_COMPAT (__snprintf_chk);
+
+#define snprintf(str, len, ...) \
+  __builtin___snprintf_chk (str, len, 0, __darwin_obsz(str), __VA_ARGS__)
+
+extern int __vsprintf_chk (char * __restrict, int, size_t,
+                          const char * __restrict, va_list arg)
+  __DARWIN_LDBL_COMPAT (__vsprintf_chk);
+
+#define vsprintf(str, format, ap) \
+  __builtin___vsprintf_chk (str, 0, __darwin_obsz(str), format, ap)
+
+extern int __vsnprintf_chk (char * __restrict, size_t, int, size_t,
+                           const char * __restrict, va_list arg)
+  __DARWIN_LDBL_COMPAT (__vsnprintf_chk);
+
+#define vsnprintf(str, len, format, ap) \
+  __builtin___vsnprintf_chk (str, len, 0, __darwin_obsz(str), format, ap)
+
+
+#endif
+
+#endif