openpty and forkpty don't exist on Solaris and other OSes.
The first, simplest function gnulib can provide in this area is 'ttyname_r'.
I'm adding it:
2010-03-21 Bruno Haible <br...@clisp.org>
New module 'ttyname_r'.
* lib/ttyname_r.c: New file.
* m4/ttyname_r.m4: New file.
* modules/ttyname_r: New file.
* lib/unistd.in.h (ttyname_r): New declaration.
* m4/unistd_h.m4 (gl_UNISTD_H): Check whether ttyname_r is declared.
(gl_UNISTD_H_DEFAULTS): Initialize GNULIB_TTYNAME_R, HAVE_TTYNAME_R.
* modules/unistd (Makefile.am): Substitute GNULIB_TTYNAME_R,
HAVE_TTYNAME_R.
* tests/test-unistd-c++.cc: Check GNULIB_NAMESPACE::ttyname_r.
* doc/posix-functions/ttyname_r.texi: Mention the new module.
=============================== lib/ttyname_r.c ===============================
/* Determine name of a terminal.
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/>. */
/* Written by Bruno Haible <br...@clisp.org>, 2010. */
#include <config.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
int
ttyname_r (int fd, char *buf, size_t buflen)
{
#if HAVE_TTYNAME
/* Note: This is not multithread-safe. */
char *name;
size_t namelen;
name = ttyname (fd);
if (name == NULL)
return errno;
namelen = strlen (name) + 1;
if (namelen > buflen)
return ERANGE;
memcpy (buf, name, namelen);
return 0;
#else
/* Platforms like mingw: no ttys exist at all. */
return ENOTTY;
#endif
}
=============================== m4/ttyname_r.m4 ===============================
# ttyname_r.m4 serial 1
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,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_TTYNAME_R],
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
AC_CHECK_FUNCS([ttyname_r])
if test $ac_cv_func_ttyname_r = no; then
HAVE_TTYNAME_R=0
AC_LIBOBJ([ttyname_r])
gl_PREREQ_TTYNAME_R
fi
])
# Prerequisites of lib/ttyname_r.c.
AC_DEFUN([gl_PREREQ_TTYNAME_R], [
AC_CHECK_FUNCS([ttyname])
])
============================== modules/ttyname_r ==============================
Description:
ttyname_r() function: Determine name of a terminal.
Files:
lib/ttyname_r.c
m4/ttyname_r.m4
Depends-on:
unistd
configure.ac:
gl_FUNC_TTYNAME_R
gl_UNISTD_MODULE_INDICATOR([ttyname_r])
Makefile.am:
Include:
<unistd.h>
License:
LGPL
Maintainer:
Bruno Haible
===============================================================================
--- lib/unistd.in.h.orig Sun Mar 21 14:32:23 2010
+++ lib/unistd.in.h Sun Mar 21 13:59:05 2010
@@ -1099,6 +1099,25 @@
#endif
+#if @GNULIB_TTYNAME_R@
+/* Store at most BUFLEN characters of the pathname of the terminal FD is
+ open on in BUF. Return 0 on success, otherwise an error number. */
+# if !...@have_ttyname_r@
+_GL_FUNCDECL_SYS (ttyname_r, int,
+ (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (ttyname_r, int,
+ (int fd, char *buf, size_t buflen));
+_GL_CXXALIASWARN (ttyname_r);
+#elif defined GNULIB_POSIXCHECK
+# undef ttyname_r
+# if HAVE_RAW_DECL_TTYNAME_R
+_GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - "
+ "use gnulib module ttyname_r for portability");
+# endif
+#endif
+
+
#if @GNULIB_UNLINK@
# if @REPLACE_UNLINK@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
--- m4/unistd_h.m4.orig Sun Mar 21 14:32:23 2010
+++ m4/unistd_h.m4 Sun Mar 21 14:20:19 2010
@@ -1,4 +1,4 @@
-# unistd_h.m4 serial 41
+# unistd_h.m4 serial 42
dnl Copyright (C) 2006-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -39,7 +39,7 @@
fsync ftruncate getcwd getdomainname getdtablesize getgroups
gethostname getlogin getlogin_r getpagesize getusershell setusershell
endusershell lchown link linkat lseek pipe2 pread readlink readlinkat
- rmdir sleep symlink symlinkat unlink unlinkat usleep])
+ rmdir sleep symlink symlinkat ttyname_r unlink unlinkat usleep])
])
AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
@@ -85,6 +85,7 @@
GNULIB_SLEEP=0; AC_SUBST([GNULIB_SLEEP])
GNULIB_SYMLINK=0; AC_SUBST([GNULIB_SYMLINK])
GNULIB_SYMLINKAT=0; AC_SUBST([GNULIB_SYMLINKAT])
+ GNULIB_TTYNAME_R=0; AC_SUBST([GNULIB_TTYNAME_R])
GNULIB_UNISTD_H_GETOPT=0; AC_SUBST([GNULIB_UNISTD_H_GETOPT])
GNULIB_UNISTD_H_SIGPIPE=0; AC_SUBST([GNULIB_UNISTD_H_SIGPIPE])
GNULIB_UNLINK=0; AC_SUBST([GNULIB_UNLINK])
@@ -116,13 +117,14 @@
HAVE_SLEEP=1; AC_SUBST([HAVE_SLEEP])
HAVE_SYMLINK=1; AC_SUBST([HAVE_SYMLINK])
HAVE_SYMLINKAT=1; AC_SUBST([HAVE_SYMLINKAT])
+ HAVE_TTYNAME_R=1; AC_SUBST([HAVE_TTYNAME_R])
+ HAVE_UNLINKAT=1; AC_SUBST([HAVE_UNLINKAT])
+ HAVE_USLEEP=1; AC_SUBST([HAVE_USLEEP])
HAVE_DECL_ENVIRON=1; AC_SUBST([HAVE_DECL_ENVIRON])
HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL])
HAVE_OS_H=0; AC_SUBST([HAVE_OS_H])
HAVE_SYS_PARAM_H=0; AC_SUBST([HAVE_SYS_PARAM_H])
- HAVE_UNLINKAT=1; AC_SUBST([HAVE_UNLINKAT])
- HAVE_USLEEP=1; AC_SUBST([HAVE_USLEEP])
REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN])
REPLACE_CLOSE=0; AC_SUBST([REPLACE_CLOSE])
REPLACE_DUP=0; AC_SUBST([REPLACE_DUP])
--- modules/unistd.orig Sun Mar 21 14:32:23 2010
+++ modules/unistd Sun Mar 21 14:25:33 2010
@@ -59,6 +59,7 @@
-e 's|@''GNULIB_SLEEP''@|$(GNULIB_SLEEP)|g' \
-e 's|@''GNULIB_SYMLINK''@|$(GNULIB_SYMLINK)|g' \
-e 's|@''GNULIB_SYMLINKAT''@|$(GNULIB_SYMLINKAT)|g' \
+ -e 's|@''GNULIB_TTYNAME_R''@|$(GNULIB_TTYNAME_R)|g' \
-e 's|@''GNULIB_UNISTD_H_GETOPT''@|$(GNULIB_UNISTD_H_GETOPT)|g' \
-e 's|@''GNULIB_UNISTD_H_SIGPIPE''@|$(GNULIB_UNISTD_H_SIGPIPE)|g'
\
-e 's|@''GNULIB_UNLINK''@|$(GNULIB_UNLINK)|g' \
@@ -90,6 +91,7 @@
-e 's|@''HAVE_SLEEP''@|$(HAVE_SLEEP)|g' \
-e 's|@''HAVE_SYMLINK''@|$(HAVE_SYMLINK)|g' \
-e 's|@''HAVE_SYMLINKAT''@|$(HAVE_SYMLINKAT)|g' \
+ -e 's|@''HAVE_TTYNAME_R''@|$(HAVE_TTYNAME_R)|g' \
-e 's|@''HAVE_UNLINKAT''@|$(HAVE_UNLINKAT)|g' \
-e 's|@''HAVE_USLEEP''@|$(HAVE_USLEEP)|g' \
-e 's|@''HAVE_DECL_ENVIRON''@|$(HAVE_DECL_ENVIRON)|g' \
--- tests/test-unistd-c++.cc.orig Sun Mar 21 14:32:23 2010
+++ tests/test-unistd-c++.cc Sun Mar 21 14:00:25 2010
@@ -165,6 +165,11 @@
(char const *, int, char const *));
#endif
+#if GNULIB_TTYNAME_R
+SIGNATURE_CHECK (GNULIB_NAMESPACE::ttyname_r, int,
+ (int fd, char *buf, size_t buflen));
+#endif
+
#if GNULIB_UNLINK
SIGNATURE_CHECK (GNULIB_NAMESPACE::unlink, int, (char const *));
#endif
--- doc/posix-functions/ttyname_r.texi.orig Sun Mar 21 14:32:23 2010
+++ doc/posix-functions/ttyname_r.texi Sun Mar 21 14:32:16 2010
@@ -4,15 +4,14 @@
POSIX specification:
@url{http://www.opengroup.org/onlinepubs/9699919799/functions/ttyname_r.html}
-Gnulib module: ---
+Gnulib module: ttyname_r
Portability problems fixed by Gnulib:
@itemize
+This function is missing on some platforms:
+NetBSD 3.0, mingw, BeOS.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
-...@item
-This function is missing on some platforms:
-NetBSD 3.0, mingw, BeOS.
@end itemize
