usr/src/uts/common/sys/utsname.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) 1984, 1986, 1987, 1988, 1989 AT&T */
  23 /*        All Rights Reserved   */
  24
  25
  26 /*
  27  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
  28  *
  29  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  30  * Use is subject to license terms.
  31  */
  32
  33 #ifndef _SYS_UTSNAME_H
  34 #define _SYS_UTSNAME_H
  35
  36 #include <sys/feature_tests.h>
  37
  38 #ifdef  __cplusplus
  39 extern "C" {
  40 #endif
  41
  42 #define _SYS_NMLN       257     /* 4.0 size of utsname elements */
  43                                 /* Must be at least 257 to      */
  44                                 /* support Internet hostnames.  */
  45
  46 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
  47 #ifndef SYS_NMLN
  48 #define SYS_NMLN        _SYS_NMLN
  49 #endif
  50 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
  51
  52 struct utsname {
  53         char    sysname[_SYS_NMLN];
  54         char    nodename[_SYS_NMLN];
  55         char    release[_SYS_NMLN];
  56         char    version[_SYS_NMLN];
  57         char    machine[_SYS_NMLN];
  58 };
  59
  60 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
  61 extern struct utsname utsname;
  62 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
  63
  64 #if !defined(_KERNEL)
  65
  66 #if defined(__i386) && !defined(__amd64)
  67
  68 extern int uname(struct utsname *);
  69 extern int _uname(struct utsname *);
  70
  71 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
  72 extern int nuname(struct utsname *);
  73 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
  74 extern int _nuname(struct utsname *);
  75
  76 /*
  77  * On i386 in SVID.2 uname() returns a utsname structure with 8 byte members,
  78  * and nuname() returns the real struct utsname.  In SVID.3 uname and nuname
  79  * are equivalent.  Anyone who includes this header gets the SVID.3 behaviour.
  80  * The SVID.2 behaviour exists solely for compatibility, and is what is
  81  * implemented by the libc uname/_uname entrypoints.
  82  */
  83 #ifdef __PRAGMA_REDEFINE_EXTNAME
  84 #pragma redefine_extname        uname   _nuname
  85 #pragma redefine_extname        _uname  _nuname
  86 #else
  87 #define uname   _nuname
  88 #define _uname  _nuname
  89 #endif
  90
  91 #else   /* defined(__i386) */
  92
  93 extern int uname(struct utsname *);
  94
  95 #endif  /* defined(__i386) */
  96
  97 #else   /* !(_KERNEL) */
  98 /*
  99  * Routine to retrieve the nodename as seen in the current process's zone.
 100  */
 101 extern char *uts_nodename(void);
 102 #endif  /* !(_KERNEL) */
 103
 104 #ifdef  __cplusplus
 105 }
 106 #endif
 107
 108 #endif  /* _SYS_UTSNAME_H */