1 files changed, 128 insertions, 0 deletions
diff --git a/gnulib-local/lib/xmalloc.c b/gnulib-local/lib/xmalloc.c
new file mode 100644
index 0000000..223f994
--- /dev/null
+++ b/gnulib-local/lib/xmalloc.c
@@ -0,0 +1,128 @@
+/* xmalloc.c -- malloc with out of memory checking
+   Copyright (C) 1990-1996, 2000-2003, 2005-2007, 2012 Free Software Foundation, Inc.
+
+   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 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/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "xalloc.h"
+
+#include <stdlib.h>
+
+#include "error.h"
+#include "gettext.h"
+
+#define _(str) gettext (str)
+
+
+/* Exit value when the requested amount of memory is not available.
+   The caller may set it to some other value.  */
+int xmalloc_exit_failure = EXIT_FAILURE;
+
+void
+xalloc_die ()
+{
+  error (xmalloc_exit_failure, 0, _("memory exhausted"));
+  /* _Noreturn cannot be given to error, since it may return if
+     its first argument is 0.  To help compilers understand the
+     xalloc_die does terminate, call exit. */
+  exit (EXIT_FAILURE);
+}
+
+static void *
+fixup_null_alloc (size_t n)
+{
+  void *p;
+
+  p = NULL;
+  if (n == 0)
+    p = malloc ((size_t) 1);
+  if (p == NULL)
+    xalloc_die ();
+  return p;
+}
+
+/* Allocate N bytes of memory dynamically, with error checking.  */
+
+void *
+xmalloc (size_t n)
+{
+  void *p;
+
+  p = malloc (n);
+  if (p == NULL)
+    p = fixup_null_alloc (n);
+  return p;
+}
+
+/* Allocate memory for NMEMB elements of SIZE bytes, with error checking.
+   SIZE must be > 0.  */
+
+void *
+xnmalloc (size_t nmemb, size_t size)
+{
+  size_t n;
+  void *p;
+
+  if (xalloc_oversized (nmemb, size))
+    xalloc_die ();
+  n = nmemb * size;
+  p = malloc (n);
+  if (p == NULL)
+    p = fixup_null_alloc (n);
+  return p;
+}
+
+/* Allocate SIZE bytes of memory dynamically, with error checking,
+   and zero it.  */
+
+void *
+xzalloc (size_t size)
+{
+  void *p;
+
+  p = xmalloc (size);
+  memset (p, 0, size);
+  return p;
+}
+
+/* Allocate memory for N elements of S bytes, with error checking,
+   and zero it.  */
+
+void *
+xcalloc (size_t n, size_t s)
+{
+  void *p;
+
+  p = calloc (n, s);
+  if (p == NULL)
+    p = fixup_null_alloc (n);
+  return p;
+}
+
+/* Change the size of an allocated block of memory P to N bytes,
+   with error checking.
+   If P is NULL, run xmalloc.  */
+
+void *
+xrealloc (void *p, size_t n)
+{
+  if (p == NULL)
+    return xmalloc (n);
+  p = realloc (p, n);
+  if (p == NULL)
+    p = fixup_null_alloc (n);
+  return p;
+}