lib/utmp.in.h

   1 /* A GNU-like <utmp.h>.
   2
   3    Copyright (C) 2023-2024 Free Software Foundation, Inc.
   4
   5    This file is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU Lesser General Public License as
   7    published by the Free Software Foundation; either version 2.1 of the
   8    License, or (at your option) any later version.
   9
  10    This file is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 #if __GNUC__ >= 3
  19 @PRAGMA_SYSTEM_HEADER@
  20 #endif
  21 @PRAGMA_COLUMNS@
  22
  23 #ifndef _@GUARD_PREFIX@_UTMP_H
  24
  25 #include <sys/types.h>
  26
  27 /* The include_next requires a split double-inclusion guard.  */
  28 #if @HAVE_UTMP_H@
  29 # @INCLUDE_NEXT@ @NEXT_UTMP_H@
  30 #endif
  31
  32 #ifndef _@GUARD_PREFIX@_UTMP_H
  33 #define _@GUARD_PREFIX@_UTMP_H
  34
  35 /* This file uses GNULIB_POSIXCHECK, HAVE_RAW_DECL_*.  */
  36 #if !_GL_CONFIG_H_INCLUDED
  37  #error "Please include config.h first."
  38 #endif
  39
  40 /* FreeBSD, NetBSD, OpenBSD, macOS, Minix, Haiku declare login_tty in
  41    <util.h> or <libutil.h>, not in <utmp.h>.  Solaris declares it in
  42    <termios.h>, not in <utmp.h>.  */
  43 /* But in any case avoid namespace pollution on glibc systems.  */
  44 #if (@GNULIB_LOGIN_TTY@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__
  45 # if @HAVE_UTIL_H@      /* macOS, NetBSD, OpenBSD, Minix */
  46 #  include <util.h>
  47 # elif @HAVE_LIBUTIL_H@ /* FreeBSD, Haiku */
  48 #  include <libutil.h>
  49 # elif @HAVE_TERMIOS_H@ /* Solaris */
  50 #  include <termios.h>
  51 # endif
  52 #endif
  53
  54 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  55
  56 /* The definition of _GL_WARN_ON_USE is copied here.  */
  57
  58
  59 #if @GNULIB_LOGIN_TTY@
  60 # if @REPLACE_LOGIN_TTY@
  61 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  62 #   undef login_tty
  63 #   define login_tty rpl_login_tty
  64 #  endif
  65 _GL_FUNCDECL_RPL (login_tty, int, (int fd));
  66 _GL_CXXALIAS_RPL (login_tty, int, (int fd));
  67 # else
  68 #  if !@HAVE_LOGIN_TTY@
  69 _GL_FUNCDECL_SYS (login_tty, int, (int fd));
  70 #  endif
  71 _GL_CXXALIAS_SYS (login_tty, int, (int fd));
  72 # endif
  73 # if __GLIBC__ >= 2
  74 _GL_CXXALIASWARN (login_tty);
  75 # endif
  76 #elif defined GNULIB_POSIXCHECK
  77 # undef login_tty
  78 # if HAVE_RAW_DECL_LOGIN_TTY
  79 _GL_WARN_ON_USE (login_tty, "login_tty is unportable - "
  80                  "use gnulib module login_tty for portability");
  81 # endif
  82 #endif
  83
  84
  85 #endif /* _@GUARD_PREFIX@_UTMP_H */
  86 #endif /* _@GUARD_PREFIX@_UTMP_H */