Here I'm adding a replacement for login_tty. Tested on Solaris.
2010-03-21 Bruno Haible <br...@clisp.org>
New module 'login_tty'.
* lib/login_tty.c: New file.
* m4/pty.m4 (gl_FUNC_LOGIN_TTY): New macro.
* modules/login_tty: New file.
* doc/glibc-functions/login_tty.texi: Mention the new module.
=============================== lib/login_tty.c ===============================
/* Assign a given terminal as controlling terminal and as standard input,
standard output, standard error of the current process.
Copyright (C) 2010 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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Currently no specification header. */
#include <fcntl.h>
#include <unistd.h>
int
login_tty (int slave_fd)
{
int i;
/* Create a new session. */
setsid ();
/* Make fd the controlling terminal for the current process.
On Solaris: A terminal becomes the controlling terminal of a session
if it is being open()ed, at a moment when
1. it is not already the controlling terminal of some session, and
2. the process that open()s it is a session leader that does not have
a controlling terminal.
We assume condition 1, try to ensure condition 2, and then open() it. */
for (i = 0; i < 3; i++)
if (i != slave_fd)
close (i);
{
char *slave_name;
int dummy_fd;
slave_name = ttyname (slave_fd);
if (slave_name == NULL)
return -1;
dummy_fd = open (slave_name, O_RDWR);
if (dummy_fd < 0)
return -1;
close (dummy_fd);
}
/* Assign fd to the standard input, standard output, and standardd error of
the current process. */
for (i = 0; i < 3; i++)
if (slave_fd != i)
if (dup2 (slave_fd, i) < 0)
return -1;
if (slave_fd >= 3)
close (slave_fd);
return 0;
}
============================== modules/login_tty ==============================
Description:
login_tty() function: Assign a given terminal as controlling terminal and as
standard input, standard output, standard error of the current process.
Files:
lib/login_tty.c
m4/pty.m4
Depends-on:
configure.ac:
gl_FUNC_LOGIN_TTY
gl_PTY_MODULE_INDICATOR([login_tty])
Makefile.am:
Include:
extern int login_tty (int);
Link:
$(PTY_LIB)
License:
LGPL
Maintainer:
Bruno Haible
===============================================================================
--- m4/pty.m4.orig Mon Mar 22 02:11:10 2010
+++ m4/pty.m4 Mon Mar 22 02:07:10 2010
@@ -1,4 +1,4 @@
-# pty.m4 serial 3
+# pty.m4 serial 4
dnl Copyright (C) 2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -120,3 +120,13 @@
AC_CHECK_FUNCS([_getpty posix_openpt])
fi
])
+
+AC_DEFUN([gl_FUNC_LOGIN_TTY],
+[
+ AC_REQUIRE([gl_PTY_LIB])
+
+ AC_CHECK_FUNCS_ONCE([login_tty])
+ if test $ac_cv_func_login_tty = no; then
+ AC_LIBOBJ([login_tty])
+ fi
+])
--- doc/glibc-functions/login_tty.texi.orig Mon Mar 22 02:11:10 2010
+++ doc/glibc-functions/login_tty.texi Mon Mar 22 02:11:03 2010
@@ -2,14 +2,10 @@
@subsection @code{login_tty}
@findex login_tty
-Gnulib module: ---
+Gnulib module: login_tty
Portability problems fixed by Gnulib:
@itemize
-...@end itemize
-
-Portability problems not fixed by Gnulib:
-...@itemize
@item
This function is missing on some platforms:
AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 10, mingw.
@@ -18,6 +14,10 @@
glibc 2.3.6, FreeBSD 6.0, NetBSD 3.0, OpenBSD 3.8.
It is available without link options on other platforms:
MacOS X 10.3, OSF/1 5.1, Cygwin, Interix 3.5.
+...@end itemize
+
+Portability problems not fixed by Gnulib:
+...@itemize
@item
This function is declared in @code{<utmp.h>} on glibc, Cygwin,
in @code{<util.h>} on MacOS X 10.3, NetBSD 3.0, OpenBSD 3.8,
