New file, introduced for shuf, sort -R, and/or shred.

1 files changed, 65 insertions, 0 deletions

diff --git a/lib/xmemxfrm.c b/lib/xmemxfrm.c
new file mode 100644
index 000000000..6cc726a73
--- /dev/null
+++ b/lib/xmemxfrm.c
@@ -0,0 +1,65 @@
+/* Locale-specific memory transformation
+
+   Copyright (C) 2006 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 2, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Written by Paul Eggert <eggert@cs.ucla.edu>.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "xmemxfrm.h"
+
+#include <errno.h>
+#include <stdlib.h>
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+#include "error.h"
+#include "exitfail.h"
+#include "memxfrm.h"
+#include "quotearg.h"
+
+/* Store into DEST (of size DESTSIZE) the text in SRC (of size
+   SRCSIZE) transformed so that the result of memcmp on two
+   transformed texts (with ties going to the longer text) is the same
+   as the result of memcoll on the two texts before their
+   transformation.  Perhaps temporarily modify the byte after SRC, but
+   restore its original contents before returning.
+
+   Return the size of the resulting text.  DEST contains an
+   indeterminate value if the resulting size is greater than DESTSIZE.
+   Report an error and exit if there is an error.  */
+
+size_t
+xmemxfrm (char *restrict dest, size_t destsize,
+	  char *restrict src, size_t srcsize)
+{
+  size_t translated_size = memxfrm (dest, destsize, src, srcsize);
+
+  if (errno)
+    {
+      error (0, errno, _("string transformation failed"));
+      error (0, 0, _("Set LC_ALL='C' to work around the problem."));
+      error (exit_failure, 0,
+	     _("The untransformed string was %s."),
+	     quotearg_n_style_mem (0, locale_quoting_style, src, srcsize));
+    }
+
+  return translated_size;
+}