1 files changed, 83 insertions, 0 deletions
diff --git a/sysdeps/mach/xpg-strerror.c b/sysdeps/mach/xpg-strerror.c
new file mode 100644
index 0000000000..8d0b31e600
--- /dev/null
+++ b/sysdeps/mach/xpg-strerror.c
@@ -0,0 +1,83 @@
+/* Copyright (C) 1993, 1995, 1996, 1997, 1998, 2000, 2002, 2004
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <libintl.h>
+#include <stdio.h>
+#include <string.h>
+#include <mach/error.h>
+#include <errorlib.h>
+#include <sys/param.h>
+#include <stdio-common/_itoa.h>
+
+/* It is critical here that we always use the `dcgettext' function for
+   the message translation.  Since <libintl.h> only defines the macro
+   `dgettext' to use `dcgettext' for optimizing programs this is not
+   always guaranteed.  */
+#ifndef dgettext
+# include <locale.h>		/* We need LC_MESSAGES.  */
+# define dgettext(domainname, msgid) dcgettext (domainname, msgid, LC_MESSAGES)
+#endif
+
+/* Fill buf with a string describing the errno code in ERRNUM.  */
+int
+__xpg_strerror_r (int errnum, char *buf, size_t buflen)
+{
+  int system;
+  int sub;
+  int code;
+  const struct error_system *es;
+  extern void __mach_error_map_compat (int *);
+  const char *estr;
+
+  __mach_error_map_compat (&errnum);
+
+  system = err_get_system (errnum);
+  sub = err_get_sub (errnum);
+  code = err_get_code (errnum);
+
+  if (system > err_max_system || ! __mach_error_systems[system].bad_sub)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  es = &__mach_error_systems[system];
+
+  if (sub >= es->max_sub)
+    estr = (const char *) es->bad_sub;
+  else if (code >= es->subsystem[sub].max_code)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+  else
+    estr = (const char *) _(es->subsystem[sub].codes[code]);
+
+  size_t estrlen = strlen (estr) + 1;
+
+  if (buflen < estrlen)
+    {
+      __set_errno (ERANGE);
+      return -1;
+    }
+
+  memcpy (buf, estr, estrlen);
+  return 0;
+}