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xmalloc.c

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+/*
+ * Copyright 2008-2013 Various Authors
+ * Copyright 2004-2005 Timo Hirvonen
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "xmalloc.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+extern char *program_name;
+
+void malloc_fail(void)
+{
+	fprintf(stderr, "%s: could not allocate memory: %s\n", program_name, strerror(errno));
+	exit(42);
+}
+
+#ifndef HAVE_STRNDUP
+char *xstrndup(const char *str, size_t n)
+{
+	size_t len;
+	char *s;
+
+	for (len = 0; len < n && str[len]; len++)
+		;
+	s = xmalloc(len + 1);
+	memcpy(s, str, len);
+	s[len] = 0;
+	return s;
+}
+#endif