1 files changed, 69 insertions, 0 deletions
diff --git a/src/utils.c b/src/utils.c
new file mode 100644
index 00000000..dcb1c8c6
--- /dev/null
+++ b/src/utils.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <nftables.h>
+#include <utils.h>
+
+void __noreturn memory_allocation_error(void)
+{
+	fprintf(stderr, "Memory allocation failure\n");
+	exit(NFT_EXIT_NOMEM);
+}
+
+void xfree(const void *ptr)
+{
+	free((void *)ptr);
+}
+
+void *xmalloc(size_t size)
+{
+	void *ptr;
+
+	ptr = malloc(size);
+	if (ptr == NULL)
+		memory_allocation_error();
+	return ptr;
+}
+
+void *xrealloc(void *ptr, size_t size)
+{
+	assert(ptr != NULL);
+	ptr = realloc(ptr, size);
+	if (ptr == NULL && size != 0)
+		memory_allocation_error();
+	return ptr;
+}
+
+void *xzalloc(size_t size)
+{
+	void *ptr;
+
+	ptr = xmalloc(size);
+	memset(ptr, 0, size);
+	return ptr;
+}
+
+char *xstrdup(const char *s)
+{
+	char *res;
+
+	assert(s != NULL);
+	res = strdup(s);
+	if (res == NULL)
+		memory_allocation_error();
+	return res;
+}