From cabe5c0ff40f3a67d0d091d1bfdc2948b203737d Mon Sep 17 00:00:00 2001
From: Martin Willi <martin@revosec.ch>
Date: Fri, 11 Oct 2013 11:06:02 +0200
Subject: printf-hook-builtin: Add a new "builtin" backend using its own
 printf() routines

Overloads printf C library functions by a self-contained implementation,
based on klibc. Does not yet feature all the required default formatters,
including those for floating point values.
---
 .../utils/printf_hook/printf_hook_builtin.h        | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 src/libstrongswan/utils/printf_hook/printf_hook_builtin.h

(limited to 'src/libstrongswan/utils/printf_hook/printf_hook_builtin.h')

diff --git a/src/libstrongswan/utils/printf_hook/printf_hook_builtin.h b/src/libstrongswan/utils/printf_hook/printf_hook_builtin.h
new file mode 100644
index 000000000..409b5bf3d
--- /dev/null
+++ b/src/libstrongswan/utils/printf_hook/printf_hook_builtin.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2013 Martin Willi
+ * Copyright (C) 2013 revosec AG
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+/**
+ * @defgroup printf_hook_builtin printf_hook_builtin
+ * @{ @ingroup utils
+ */
+
+#ifndef PRINTF_HOOK_BUILTIN_H_
+#define PRINTF_HOOK_BUILTIN_H_
+
+#include <stdarg.h>
+#include <stdio.h>
+
+int builtin_printf(const char *format, ...);
+int builtin_fprintf(FILE *stream, const char *format, ...);
+int builtin_sprintf(char *str, const char *format, ...);
+int builtin_snprintf(char *str, size_t size, const char *format, ...);
+int builtin_asprintf(char **str, const char *format, ...);
+
+int builtin_vprintf(const char *format, va_list ap);
+int builtin_vfprintf(FILE *stream, const char *format, va_list ap);
+int builtin_vsprintf(char *str, const char *format, va_list ap);
+int builtin_vsnprintf(char *str, size_t size, const char *format, va_list ap);
+int builtin_vasprintf(char **str, const char *format, va_list ap);
+
+#ifdef printf
+#undef printf
+#endif
+#ifdef fprintf
+#undef fprintf
+#endif
+#ifdef sprintf
+#undef sprintf
+#endif
+#ifdef snprintf
+#undef snprintf
+#endif
+#ifdef asprintf
+#undef asprintf
+#endif
+#ifdef vprintf
+#undef vprintf
+#endif
+#ifdef vfprintf
+#undef vfprintf
+#endif
+#ifdef vsprintf
+#undef vsprintf
+#endif
+#ifdef vsnprintf
+#undef vsnprintf
+#endif
+#ifdef vasprintf
+#undef vasprintf
+#endif
+
+#define printf builtin_printf
+#define fprintf builtin_fprintf
+#define sprintf builtin_sprintf
+#define snprintf builtin_snprintf
+#define asprintf builtin_asprintf
+
+#define vprintf builtin_vprintf
+#define vfprintf builtin_vfprintf
+#define vsprintf builtin_vsprintf
+#define vsnprintf builtin_vsnprintf
+#define vasprintf builtin_vasprintf
+
+#endif /** PRINTF_HOOK_BUILTIN_H_ @}*/
-- 
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