2010-03-21 Bruno Haible <bruno@clisp.org>
+ New module 'grantpt'.
+ * lib/grantpt.c: New file, from glibc with modifications.
+ * m4/grantpt.m4: New file.
+ * modules/grantpt: New file.
+ * lib/stdlib.in.h (grantpt): New declaration.
+ * m4/stdlib_h.m4 (gl_STDLIB_H): Check whether grantpt is declared.
+ (gl_STDLIB_H_DEFAULTS): Initialize GNULIB_GRANTPT, HAVE_GRANTPT.
+ * modules/stdlib (Makefile.am): Substitute GNULIB_GRANTPT,
+ HAVE_GRANTPT.
+ * doc/posix-functions/grantpt.texi: Mention the new module.
+ * tests/test-stdlib-c++.cc: Check GNULIB_NAMESPACE::grantpt.
+ * config/srclist.txt: Add grantpt.c (commented).
+
+2010-03-21 Bruno Haible <bruno@clisp.org>
+
New module 'pt_chown'.
* lib/pt_chown.c: New file, from glibc with modifications.
* lib/pty-private.h: New file, from glibc with modifications.
#$LIBCSRC/sysdeps/unix/bsd/poll.c lib gpl
#$LIBCSRC/sysdeps/unix/bsd/ptsname.c lib gpl
#$LIBCSRC/sysdeps/unix/dirfd.c lib gpl
+#$LIBCSRC/sysdeps/unix/grantpt.c lib gpl
#$LIBCSRC/sysdeps/unix/rmdir.c lib gpl
#$LIBCSRC/time/strftime.c lib gpl
# These are close, but we are using the gettext versions.
POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/grantpt.html}
-Gnulib module: ---
+Gnulib module: grantpt
Portability problems fixed by Gnulib:
@itemize
+@item
+This function is missing on some platforms:
+MacOS X 10.3, OpenBSD 3.8, mingw, BeOS.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
-@item
-This function is missing on some platforms:
-MacOS X 10.3, OpenBSD 3.8, mingw, BeOS.
@end itemize
--- /dev/null
+/* Acquire ownership of the slave side of a pseudo-terminal.
+ Copyright (C) 1998-2002, 2009-2010 Free Software Foundation, Inc.
+ Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
+
+ 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>
+
+#include <stdlib.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#if HAVE_SETRLIMIT
+# include <sys/types.h>
+# include <sys/time.h>
+# include <sys/resource.h>
+#endif
+
+#include "configmake.h"
+#include "pty-private.h"
+
+#ifndef _LIBC
+# define __builtin_expect(expr,val) (expr)
+# define __set_errno(e) errno = (e)
+# define __dup2 dup2
+# define __fork fork
+# define __setrlimit setrlimit
+# define __waitpid waitpid
+#endif
+
+int
+grantpt (int fd)
+{
+ /* This function is most often called from a process without 'root'
+ credentials. Use the helper program. */
+ int retval = -1;
+ pid_t pid = __fork ();
+ if (pid == -1)
+ goto cleanup;
+ else if (pid == 0)
+ {
+ /* This is executed in the child process. */
+
+#if HAVE_SETRLIMIT && defined RLIMIT_CORE
+ /* Disable core dumps. */
+ struct rlimit rl = { 0, 0 };
+ __setrlimit (RLIMIT_CORE, &rl);
+#endif
+
+ /* We pass the master pseudo terminal as file descriptor PTY_FILENO. */
+ if (fd != PTY_FILENO)
+ if (__dup2 (fd, PTY_FILENO) < 0)
+ _exit (FAIL_EBADF);
+
+#ifdef CLOSE_ALL_FDS
+ CLOSE_ALL_FDS ();
+#endif
+
+ execle (_PATH_PT_CHOWN, strrchr (_PATH_PT_CHOWN, '/') + 1, NULL, NULL);
+ _exit (FAIL_EXEC);
+ }
+ else
+ {
+ int w;
+
+ if (__waitpid (pid, &w, 0) == -1)
+ goto cleanup;
+ if (!WIFEXITED (w))
+ __set_errno (ENOEXEC);
+ else
+ switch (WEXITSTATUS (w))
+ {
+ case 0:
+ retval = 0;
+ break;
+ case FAIL_EBADF:
+ __set_errno (EBADF);
+ break;
+ case FAIL_EINVAL:
+ __set_errno (EINVAL);
+ break;
+ case FAIL_EACCES:
+ __set_errno (EACCES);
+ break;
+ case FAIL_EXEC:
+ __set_errno (ENOEXEC);
+ break;
+ case FAIL_ENOMEM:
+ __set_errno (ENOMEM);
+ break;
+
+ default:
+ assert(! "getpt: internal error: invalid exit code from pt_chown");
+ }
+ }
+
+ cleanup:
+ return retval;
+}
# endif
#endif
+#if @GNULIB_GRANTPT@
+/* Change the ownership and access permission of the slave side of the
+ pseudo-terminal whose master side is specified by FD. */
+# if !@HAVE_GRANTPT@
+_GL_FUNCDECL_SYS (grantpt, int, (int fd));
+# endif
+_GL_CXXALIAS_SYS (grantpt, int, (int fd));
+_GL_CXXALIASWARN (grantpt);
+#elif defined GNULIB_POSIXCHECK
+# undef grantpt
+# if HAVE_RAW_DECL_GRANTPT
+_GL_WARN_ON_USE (ptsname, "grantpt is not portable - "
+ "use gnulib module grantpt for portability");
+# endif
+#endif
+
#if @GNULIB_MALLOC_POSIX@
# if !@HAVE_MALLOC_POSIX@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
--- /dev/null
+# grantpt.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_GRANTPT],
+[
+ AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+
+ dnl Persuade glibc <stdlib.h> to declare grantpt().
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ AC_CHECK_FUNCS([grantpt])
+ if test $ac_cv_func_grantpt = no; then
+ HAVE_GRANTPT=0
+ AC_LIBOBJ([grantpt])
+ gl_PREREQ_GRANTPT
+ fi
+])
+
+# Prerequisites of lib/grantpt.c.
+AC_DEFUN([gl_PREREQ_GRANTPT], [
+ AC_CHECK_FUNCS([setrlimit])
+])
-# stdlib_h.m4 serial 24
+# stdlib_h.m4 serial 25
dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
#if HAVE_RANDOM_H
# include <random.h>
#endif
- ]], [atoll canonicalize_file_name getloadavg getsubopt mkdtemp
+ ]], [atoll canonicalize_file_name getloadavg getsubopt grantpt mkdtemp
mkostemp mkostemps mkstemp mkstemps ptsname random_r initstat_r srandom_r
setstate_r realpath rpmatch setenv strtod strtoll strtoull unsetenv])
])
GNULIB_CANONICALIZE_FILE_NAME=0; AC_SUBST([GNULIB_CANONICALIZE_FILE_NAME])
GNULIB_GETLOADAVG=0; AC_SUBST([GNULIB_GETLOADAVG])
GNULIB_GETSUBOPT=0; AC_SUBST([GNULIB_GETSUBOPT])
+ GNULIB_GRANTPT=0; AC_SUBST([GNULIB_GRANTPT])
GNULIB_MALLOC_POSIX=0; AC_SUBST([GNULIB_MALLOC_POSIX])
GNULIB_MKDTEMP=0; AC_SUBST([GNULIB_MKDTEMP])
GNULIB_MKOSTEMP=0; AC_SUBST([GNULIB_MKOSTEMP])
HAVE_CANONICALIZE_FILE_NAME=1; AC_SUBST([HAVE_CANONICALIZE_FILE_NAME])
HAVE_DECL_GETLOADAVG=1; AC_SUBST([HAVE_DECL_GETLOADAVG])
HAVE_GETSUBOPT=1; AC_SUBST([HAVE_GETSUBOPT])
+ HAVE_GRANTPT=1; AC_SUBST([HAVE_GRANTPT])
HAVE_MALLOC_POSIX=1; AC_SUBST([HAVE_MALLOC_POSIX])
HAVE_MKDTEMP=1; AC_SUBST([HAVE_MKDTEMP])
HAVE_MKOSTEMP=1; AC_SUBST([HAVE_MKOSTEMP])
--- /dev/null
+Description:
+grantpt() function: Acquire ownership of the slave side of a pseudo-terminal.
+
+Files:
+lib/grantpt.c
+m4/grantpt.m4
+
+Depends-on:
+stdlib
+extensions
+pt_chown
+configmake
+
+configure.ac:
+gl_FUNC_GRANTPT
+gl_STDLIB_MODULE_INDICATOR([grantpt])
+
+Makefile.am:
+
+Include:
+<stdlib.h>
+
+License:
+LGPL
+
+Maintainer:
+Bruno Haible
-e 's|@''GNULIB_CANONICALIZE_FILE_NAME''@|$(GNULIB_CANONICALIZE_FILE_NAME)|g' \
-e 's|@''GNULIB_GETLOADAVG''@|$(GNULIB_GETLOADAVG)|g' \
-e 's|@''GNULIB_GETSUBOPT''@|$(GNULIB_GETSUBOPT)|g' \
+ -e 's|@''GNULIB_GRANTPT''@|$(GNULIB_GRANTPT)|g' \
-e 's|@''GNULIB_MALLOC_POSIX''@|$(GNULIB_MALLOC_POSIX)|g' \
-e 's|@''GNULIB_MKDTEMP''@|$(GNULIB_MKDTEMP)|g' \
-e 's|@''GNULIB_MKOSTEMP''@|$(GNULIB_MKOSTEMP)|g' \
-e 's|@''HAVE_CANONICALIZE_FILE_NAME''@|$(HAVE_CANONICALIZE_FILE_NAME)|g' \
-e 's|@''HAVE_DECL_GETLOADAVG''@|$(HAVE_DECL_GETLOADAVG)|g' \
-e 's|@''HAVE_GETSUBOPT''@|$(HAVE_GETSUBOPT)|g' \
+ -e 's|@''HAVE_GRANTPT''@|$(HAVE_GRANTPT)|g' \
-e 's|@''HAVE_MALLOC_POSIX''@|$(HAVE_MALLOC_POSIX)|g' \
-e 's|@''HAVE_MKDTEMP''@|$(HAVE_MKDTEMP)|g' \
-e 's|@''HAVE_MKOSTEMP''@|$(HAVE_MKOSTEMP)|g' \
(char **, char *const *, char **));
#endif
+#if GNULIB_GRANTPT
+SIGNATURE_CHECK (GNULIB_NAMESPACE::grantpt, int, (int));
+#endif
+
#if GNULIB_MALLOC_POSIX
SIGNATURE_CHECK (GNULIB_NAMESPACE::malloc, void *, (size_t));
#endif
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