1 files changed, 118 insertions, 0 deletions
diff --git a/src/libstrongswan/printf_hook.c b/src/libstrongswan/printf_hook.c
new file mode 100644
index 000000000..0407e8c82
--- /dev/null
+++ b/src/libstrongswan/printf_hook.c
@@ -0,0 +1,118 @@
+/**
+ * @file printf_hook.c
+ *
+ * @brief Printf hook definitions and arginfo functions.
+ *
+ */
+
+/*
+ * Copyright (C) 2006 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.
+ */
+
+#include "printf_hook.h"
+
+/**
+ * arginfo handler in printf() pointer
+ */
+int arginfo_ptr(const struct printf_info *info, size_t n, int *argtypes)
+{
+	if (n > 0)
+	{
+		argtypes[0] = PA_POINTER;
+	}
+	return 1;
+}
+
+/**
+ * arginfo handler for two prt arguments
+ */
+int arginfo_ptr_ptr(const struct printf_info *info, size_t n, int *argtypes)
+{
+	if (n > 1)
+	{
+		argtypes[0] = PA_POINTER;
+		argtypes[1] = PA_POINTER;
+	}
+	return 2;
+}
+
+/**
+ * arginfo handler for one ptr, one int
+ */
+int arginfo_ptr_int(const struct printf_info *info, size_t n, int *argtypes)
+{
+	if (n > 1)
+	{
+		argtypes[0] = PA_POINTER;
+		argtypes[1] = PA_INT;
+	}
+	return 2;
+}
+
+/**
+ * arginfo handler for two int arguments
+ */
+int arginfo_int_int(const struct printf_info *info, size_t n, int *argtypes)
+{
+	if (n > 1)
+	{
+		argtypes[0] = PA_INT;
+		argtypes[1] = PA_INT;
+	}
+	return 2;
+}
+
+/**
+ * special arginfo handler respecting alt flag
+ */
+int arginfo_int_alt_int_int(const struct printf_info *info, size_t n, int *argtypes)
+{
+	if (info->alt)
+	{
+		if (n > 1)
+		{
+			argtypes[0] = PA_INT;
+			argtypes[1] = PA_INT;
+		}
+		return 2;
+	}
+	
+	if (n > 0)
+	{
+		argtypes[0] = PA_INT;
+	}
+	return 1;
+}
+
+/**
+ * special arginfo handler respecting alt flag
+ */
+int arginfo_ptr_alt_ptr_int(const struct printf_info *info, size_t n, int *argtypes)
+{
+	if (info->alt)
+	{
+		if (n > 1)
+		{
+			argtypes[0] = PA_POINTER;
+			argtypes[1] = PA_INT;
+		}
+		return 2;
+	}
+	
+	if (n > 0)
+	{
+		argtypes[0] = PA_POINTER;
+	}
+	return 1;
+}