Move all source code to src/.

[tinc] / src / xalloc.c

diff --git a/src/xalloc.c b/src/xalloc.c
new file mode 100644 (file)
index 0000000..80699f9
--- /dev/null
+++ b/src/xalloc.c
@@ -0,0 +1,77 @@
+/*
+    xalloc.c -- safe memory allocation functions
+
+    Copyright (C) 2003-2004 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 of the License, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id$
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "xalloc.h"
+
+static void xalloc_fail(void) {
+       fprintf(stderr, "Memory exhausted\n");
+       exit(1);
+}
+
+void (*xalloc_fail_func)(void) = xalloc_fail;
+
+void *xmalloc(size_t n) {
+       void *p;
+
+       p = malloc(n);
+
+       if(!p)
+               xalloc_fail_func();
+
+       return p;
+}
+
+void *xrealloc(void *p, size_t n) {
+       p = realloc(p, n);
+
+       if(!p)
+               xalloc_fail_func();
+
+       return p;
+}
+
+void *xcalloc(size_t n, size_t s) {
+       void *p;
+
+       p = calloc(n, s);
+
+       if(!p)
+               xalloc_fail_func();
+
+       return p;
+}
+
+char *xstrdup(const char *s) {
+       char *p;
+
+       p = strdup(s);
+
+       if(!p)
+               xalloc_fail_func();
+
+       return p;
+}
+