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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/generic/_strerror.c
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initial import
Diffstat (limited to 'sysdeps/generic/_strerror.c')
-rw-r--r--sysdeps/generic/_strerror.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/generic/_strerror.c b/sysdeps/generic/_strerror.c
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+++ b/sysdeps/generic/_strerror.c
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+/* Copyright (C) 19911993 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <stdio.h>
+#include <string.h>
+
+#ifndef HAVE_GNU_LD
+#define _sys_errlist sys_errlist
+#define _sys_nerr sys_nerr
+#endif
+
+/* Return a string describing the errno code in ERRNUM.  */
+char *
+DEFUN(_strerror_internal, (errnum, buf), int errnum AND char buf[1024])
+{
+  if (errnum < 0 || errnum > _sys_nerr)
+    {
+      static char fmt[] = "Unknown error %d";
+      size_t len = sprintf (buf, fmt, errnum);
+      if (len < sizeof(fmt) - 2)
+	return NULL;
+      buf[len - 1] = '\0';
+      return buf;
+    }
+
+  return (char *) _sys_errlist[errnum];
+}