+#ifndef TINC_XALLOC_H
+#define TINC_XALLOC_H
+
+/*
+ xalloc.h -- malloc and related functions with out of memory checking
+ Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
+ Copyright (C) 2011-2013 Guus Sliepen <guus@tinc-vpn.org>
+
+ 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, or (at your option)
+ any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc., Foundation,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "system.h"
+
+#include <assert.h>
+
+static inline void *xmalloc(size_t n) ATTR_MALLOC;
+static inline void *xmalloc(size_t n) {
+ void *p = malloc(n);
+
+ if(!p) {
+ abort();
+ }
+
+ return p;
+}
+
+static inline void *xzalloc(size_t n) ATTR_MALLOC;
+static inline void *xzalloc(size_t n) {
+ void *p = calloc(1, n);
+
+ if(!p) {
+ abort();
+ }
+
+ return p;
+}
+
+static inline void *xrealloc(void *p, size_t n) {
+ p = realloc(p, n);
+
+ if(!p) {
+ abort();
+ }
+
+ return p;
+}
+
+static inline char *xstrdup(const char *s) ATTR_MALLOC ATTR_NONNULL;
+static inline char *xstrdup(const char *s) {
+ char *p = strdup(s);
+
+ if(!p) {
+ abort();
+ }
+
+ return p;
+}
+
+static inline int xvasprintf(char **strp, const char *fmt, va_list ap) ATTR_FORMAT(printf, 2, 0);
+static inline int xvasprintf(char **strp, const char *fmt, va_list ap) {
+#ifdef HAVE_WINDOWS
+ char buf[1024];
+ int result = vsnprintf(buf, sizeof(buf), fmt, ap);
+
+ if(result < 0) {
+ abort();
+ }
+
+ *strp = xstrdup(buf);
+#else
+ int result = vasprintf(strp, fmt, ap);
+
+ if(result < 0) {
+ abort();
+ }
+