Merge branch 'printf-hook'

Adds a custom printf hook implementation as a fallback if neither the glibc
style hooks nor vstr is available. This can avoid the Vstr dependency on some
systems at the cost of slower and less complete printf functions.

1 files changed, 83 insertions, 0 deletions

diff --git a/src/libstrongswan/utils/printf_hook/printf_hook_vstr.h b/src/libstrongswan/utils/printf_hook/printf_hook_vstr.h
new file mode 100644
index 000000000..2f9ee5983
--- /dev/null
+++ b/src/libstrongswan/utils/printf_hook/printf_hook_vstr.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2009 Tobias Brunner
+ * Copyright (C) 2006-2008 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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_vstr printf_hook_vstr
+ * @{ @ingroup utils
+ */
+
+#ifndef PRINTF_HOOK_VSTR_H_
+#define PRINTF_HOOK_VSTR_H_
+
+#include <stdarg.h>
+#include <stdio.h>
+
+int vstr_wrapper_printf(const char *format, ...);
+int vstr_wrapper_fprintf(FILE *stream, const char *format, ...);
+int vstr_wrapper_sprintf(char *str, const char *format, ...);
+int vstr_wrapper_snprintf(char *str, size_t size, const char *format, ...);
+int vstr_wrapper_asprintf(char **str, const char *format, ...);
+
+int vstr_wrapper_vprintf(const char *format, va_list ap);
+int vstr_wrapper_vfprintf(FILE *stream, const char *format, va_list ap);
+int vstr_wrapper_vsprintf(char *str, const char *format, va_list ap);
+int vstr_wrapper_vsnprintf(char *str, size_t size, const char *format, va_list ap);
+int vstr_wrapper_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 vstr_wrapper_printf
+#define fprintf vstr_wrapper_fprintf
+#define sprintf vstr_wrapper_sprintf
+#define snprintf vstr_wrapper_snprintf
+#define asprintf vstr_wrapper_asprintf
+
+#define vprintf vstr_wrapper_vprintf
+#define vfprintf vstr_wrapper_vfprintf
+#define vsprintf vstr_wrapper_vsprintf
+#define vsnprintf vstr_wrapper_vsnprintf
+#define vasprintf vstr_wrapper_vasprintf
+
+#endif /** PRINTF_HOOK_VSTR_H_ @}*/