usr/src/head/errno.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1988 AT&T */
  23 /*        All Rights Reserved   */
  24
  25
  26 /*
  27  * Copyright 1999-2003 Sun Microsystems, Inc.  All rights reserved.
  28  * Use is subject to license terms.
  29  */
  30
  31
  32 #ifndef _ERRNO_H
  33 #define _ERRNO_H
  34
  35 #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.4.1.5 */
  36
  37 /*
  38  * Error codes
  39  */
  40
  41 #include <sys/errno.h>
  42
  43 #ifdef  __cplusplus
  44 extern "C" {
  45 #endif
  46
  47 #if defined(_LP64)
  48 /*
  49  * The symbols _sys_errlist and _sys_nerr are not visible in the
  50  * LP64 libc.  Use strerror(3C) instead.
  51  */
  52 #endif /* _LP64 */
  53
  54 #if defined(_REENTRANT) || defined(_TS_ERRNO) || _POSIX_C_SOURCE - 0 >= 199506L
  55 extern int *___errno();
  56 #define errno (*(___errno()))
  57 #else
  58 extern int errno;
  59 /* ANSI C++ requires that errno be a macro */
  60 #if __cplusplus >= 199711L
  61 #define errno errno
  62 #endif
  63 #endif  /* defined(_REENTRANT) || defined(_TS_ERRNO) */
  64
  65 #ifdef  __cplusplus
  66 }
  67 #endif
  68
  69 #endif  /* _ERRNO_H */