Now that gethostname is supported on all platforms, it's easy to add
support for the uname() function on all platforms.
Here is a proposed module 'sys_utsname', and a proposed module 'uname'
in the next mail.
2009-08-02 Bruno Haible <br...@clisp.org>
New module 'sys_utsname'.
* lib/sys_utsname.in.h: New file, based on glibc's <sys/utsname.h>.
* m4/sys_utsname_h.m4: New file.
* modules/sys_utsname: New file.
* doc/posix-headers/sys_utsname.texi: Mention the new module.
============================ lib/sys_utsname.in.h ============================
/* Substitute for <sys/utsname.h>.
Copyright (C) 2009 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef _GL_SYS_UTSNAME_H
#define _GL_SYS_UTSNAME_H
/* The definition of GL_LINK_WARNING is copied here. */
#ifdef __cplusplus
extern "C" {
#endif
/* Length of the entries in 'struct utsname' is 256. */
#define _UTSNAME_LENGTH 256
#ifndef _UTSNAME_NODENAME_LENGTH
# define _UTSNAME_NODENAME_LENGTH _UTSNAME_LENGTH
#endif
#ifndef _UTSNAME_SYSNAME_LENGTH
# define _UTSNAME_SYSNAME_LENGTH _UTSNAME_LENGTH
#endif
#ifndef _UTSNAME_RELEASE_LENGTH
# define _UTSNAME_RELEASE_LENGTH _UTSNAME_LENGTH
#endif
#ifndef _UTSNAME_VERSION_LENGTH
# define _UTSNAME_VERSION_LENGTH _UTSNAME_LENGTH
#endif
#ifndef _UTSNAME_MACHINE_LENGTH
# define _UTSNAME_MACHINE_LENGTH _UTSNAME_LENGTH
#endif
/* Structure describing the system and machine. */
struct utsname
{
/* Name of this node on the network. */
char nodename[_UTSNAME_NODENAME_LENGTH];
/* Name of the implementation of the operating system. */
char sysname[_UTSNAME_SYSNAME_LENGTH];
/* Current release level of this implementation. */
char release[_UTSNAME_RELEASE_LENGTH];
/* Current version level of this release. */
char version[_UTSNAME_VERSION_LENGTH];
/* Name of the hardware type the system is running on. */
char machine[_UTSNAME_MACHINE_LENGTH];
};
#if @GNULIB_UNAME@
# if !...@have_uname@
extern int uname (struct utsname *buf);
# endif
#elif defined GNULIB_POSIXCHECK
# undef uname
# define uname(b) \
(GL_LINK_WARNING ("uname is unportable - " \
"use gnulib module uname for portability"), \
uname (b))
#endif
#ifdef __cplusplus
}
#endif
#endif /* _GL_SYS_UTSNAME_H */
============================= m4/sys_utsname_h.m4 =============================
# sys_utsname_h.m4 serial 1
dnl Copyright (C) 2009 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl Written by Bruno Haible.
AC_DEFUN([gl_SYS_UTSNAME_H],
[
dnl Use AC_REQUIRE here, so that the default behavior below is expanded
dnl once only, before all statements that occur in other macros.
AC_REQUIRE([gl_SYS_UTSNAME_H_DEFAULTS])
AC_CHECK_HEADERS_ONCE([sys/utsname.h])
if test $ac_cv_header_sys_utsname_h != yes; then
SYS_UTSNAME_H='sys/utsname.h'
fi
])
AC_DEFUN([gl_SYS_UTSNAME_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_SYS_UTSNAME_H_DEFAULTS])
GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
])
AC_DEFUN([gl_SYS_UTSNAME_H_DEFAULTS],
[
GNULIB_UNAME=0; AC_SUBST([GNULIB_UNAME])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_UNAME=1; AC_SUBST([HAVE_UNAME])
SYS_UTSNAME_H=''; AC_SUBST([SYS_UTSNAME_H])
])
============================= modules/sys_utsname =============================
Description:
A <sys/utsname.h> for systems which lack it.
Files:
lib/sys_utsname.in.h
m4/sys_utsname_h.m4
Depends-on:
link-warning
configure.ac:
gl_SYS_UTSNAME_H
AC_PROG_MKDIR_P
Makefile.am:
BUILT_SOURCES += $(SYS_UTSNAME_H)
# We need the following in order to create <sys/utsname.h> when the system
# does not have one.
sys/utsname.h: sys_utsname.in.h
@MKDIR_P@ sys
rm -f $...@-t $@
{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
sed -e 's|@''GNULIB_UNAME''@|$(GNULIB_UNAME)|g' \
-e 's|@''HAVE_UNAME''@|$(HAVE_UNAME)|g' \
-e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
< $(srcdir)/sys_utsname.in.h; \
} > $...@-t
mv $...@-t $@
MOSTLYCLEANFILES += sys/utsname.h sys/utsname.h-t
MOSTLYCLEANDIRS += sys
Include:
#include <sys/utsname.h>
License:
LGPLv2+
Maintainer:
Bruno Haible
