--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwlink/util.c	Wed Jan 28 05:59:14 2009 +0000
@@ -0,0 +1,87 @@
+/*
+util.c
+Copyright © 2009 William Astle
+
+This file is part of LWLINK.
+
+LWLINK 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+Utility functions
+*/
+
+#define __util_c_seen__
+
+#include <malloc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "util.h"
+
+void *lw_malloc(int size)
+{
+	void *ptr;
+	
+	ptr = malloc(size);
+	if (!ptr)
+	{
+		// bail out; memory allocation error
+		fprintf(stderr, "lw_malloc(): Memory allocation error\n");
+		exit(1);
+	}
+	return ptr;
+}
+
+void *lw_realloc(void *optr, int size)
+{
+	void *ptr;
+	
+	if (size == 0)
+	{
+		lw_free(optr);
+		return;
+	}
+	
+	ptr = realloc(optr, size);
+	if (!ptr)
+	{
+		fprintf(stderr, "lw_realloc(): memory allocation error\n");
+		exit(1);
+	}
+}
+
+void lw_free(void *ptr)
+{
+	if (ptr)
+		free(ptr);
+}
+
+char *lw_strdup(const char *s)
+{
+	char *d;
+	
+	if (!s)
+		return NULL;
+
+	d = strdup(s);
+	if (!d)
+	{
+		fprintf(stderr, "lw_strdup(): memory allocation error\n");
+		exit(1);
+	}
+	
+	return d;
+}