support: Add xstrndup, xunlink, xreadlink, support_create_temp_directory

1 files changed, 30 insertions, 0 deletions

diff --git a/support/xstrndup.c b/support/xstrndup.c
new file mode 100644
index 0000000000..d59a283d25
--- /dev/null
+++ b/support/xstrndup.c
@@ -0,0 +1,30 @@
+/* strndup with error checking.
+   Copyright (C) 2016-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <support/support.h>
+
+#include <string.h>
+
+char *
+xstrndup (const char *s, size_t length)
+{
+  char *p = strndup (s, length);
+  if (p == NULL)
+    oom_error ("strndup", length);
+  return p;
+}