posix/sys/utsname.h

   1 /* Copyright (C) 1991-2020 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 /*
  19  *      POSIX Standard: 4.4 System Identification       <sys/utsname.h>
  20  */
  21
  22 #ifndef _SYS_UTSNAME_H
  23 #define _SYS_UTSNAME_H  1
  24
  25 #include <features.h>
  26
  27 __BEGIN_DECLS
  28
  29 #include <bits/utsname.h>
  30
  31 #ifndef _UTSNAME_SYSNAME_LENGTH
  32 # define _UTSNAME_SYSNAME_LENGTH _UTSNAME_LENGTH
  33 #endif
  34 #ifndef _UTSNAME_NODENAME_LENGTH
  35 # define _UTSNAME_NODENAME_LENGTH _UTSNAME_LENGTH
  36 #endif
  37 #ifndef _UTSNAME_RELEASE_LENGTH
  38 # define _UTSNAME_RELEASE_LENGTH _UTSNAME_LENGTH
  39 #endif
  40 #ifndef _UTSNAME_VERSION_LENGTH
  41 # define _UTSNAME_VERSION_LENGTH _UTSNAME_LENGTH
  42 #endif
  43 #ifndef _UTSNAME_MACHINE_LENGTH
  44 # define _UTSNAME_MACHINE_LENGTH _UTSNAME_LENGTH
  45 #endif
  46
  47 /* Structure describing the system and machine.  */
  48 struct utsname
  49   {
  50     /* Name of the implementation of the operating system.  */
  51     char sysname[_UTSNAME_SYSNAME_LENGTH];
  52
  53     /* Name of this node on the network.  */
  54     char nodename[_UTSNAME_NODENAME_LENGTH];
  55
  56     /* Current release level of this implementation.  */
  57     char release[_UTSNAME_RELEASE_LENGTH];
  58     /* Current version level of this release.  */
  59     char version[_UTSNAME_VERSION_LENGTH];
  60
  61     /* Name of the hardware type the system is running on.  */
  62     char machine[_UTSNAME_MACHINE_LENGTH];
  63
  64 #if _UTSNAME_DOMAIN_LENGTH - 0
  65     /* Name of the domain of this node on the network.  */
  66 # ifdef __USE_GNU
  67     char domainname[_UTSNAME_DOMAIN_LENGTH];
  68 # else
  69     char __domainname[_UTSNAME_DOMAIN_LENGTH];
  70 # endif
  71 #endif
  72   };
  73
  74 #ifdef __USE_MISC
  75 /* Note that SVID assumes all members have the same size.  */
  76 # define SYS_NMLN  _UTSNAME_LENGTH
  77 #endif
  78
  79
  80 /* Put information about the system in NAME.  */
  81 extern int uname (struct utsname *__name) __THROW;
  82
  83
  84 __END_DECLS
  85
  86 #endif /* sys/utsname.h  */