* cygwin.din (dup3): Export.
(pipe2): Export. * dtable.cc (dtable::dup_worker): Take additional flags parameter. Handle O_CLOEXEC flag. (dtable::dup3): Rename from dup2. Take additional flags parameter. Check for valid flags. Drop check for newfd == oldfd. * dtable.h (dtable::dup_worker): Add flags parameter. (dtable::dup3): Rename from dup2. * fcntl.cc (fcntl64): Add F_DUPFD_CLOEXEC case. * fhandler.h (fhandler_mailslot::get_object_attr): Add flags parameter. * fhandler.cc (fhandler_base::open): Use security attribute with inheritance according to setting of O_CLOEXEC flag. * fhandler_console.cc (fhandler_console::open): Ditto. * fhandler_fifo.cc (sec_user_cloexec): New inline function to create security attribute with inheritance according to setting of O_CLOEXEC flag. (fhandler_fifo::open): Call sec_user_cloexec to fetch security attribute. (fhandler_fifo::wait): Ditto. * fhandler_mem.cc (fhandler_dev_mem::open): Ditto. * fhandler_mailslot.cc (fhandler_mailslot::get_object_attr): Take additional flags parameter. Use security attribute with inheritance according to setting of O_CLOEXEC flag. (fhandler_mailslot::open): Call get_object_attr with flags parameter. * fhandler_registry.cc (fhandler_registry::open): Call set_close_on_exec on real handles to accommodate O_CLOEXEC flag. * fhandler_tty.cc (fhandler_tty_slave::open): Ditto. * fhandler_tape.cc: Create mutex with inheritance according to setting of O_CLOEXEC flag. * pipe.cc: Replace usage of O_NOINHERIT with O_CLOEXEC. (fhandler_pipe::init): Simplify setting close_on_exec flag. (fhandler_pipe::open): Remove setting close_on_exec flag. (fhandler_pipe::create): Use security attribute with inheritance according to setting of O_CLOEXEC flag. (pipe2): New exported function. * posix_ipc.cc: Throughout, open backing files with O_CLOEXEC flag to follow POSIX semantics. * security.h (sec_none_cloexec): New define. * syscalls.cc (dup): Add missing extern "C" qualifier. Accommodate renaming of dtable::dup2 to dtable::dup3. (dup2): Ditto. Check newfd == oldfd here. (dup3): New function. Check newfd == oldfd here. (open): Set close_on_exec flag according to O_CLOEXEC flag before calling fhandler->open. * include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
This commit is contained in:
@@ -1,7 +1,7 @@
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/* fhandler_console.cc
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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2006, 2008, 2009 Red Hat, Inc.
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2006, 2008, 2009, 2010 Red Hat, Inc.
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This file is part of Cygwin.
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@@ -705,7 +705,7 @@ fhandler_console::open (int flags, mode_t)
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/* Open the input handle as handle_ */
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h = CreateFile ("CONIN$", GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE, &sec_none,
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FILE_SHARE_READ | FILE_SHARE_WRITE, sec_none_cloexec (flags),
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OPEN_EXISTING, 0, 0);
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if (h == INVALID_HANDLE_VALUE)
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@@ -717,7 +717,7 @@ fhandler_console::open (int flags, mode_t)
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uninterruptible_io (true); // Handled explicitly in read code
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h = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE, &sec_none,
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FILE_SHARE_READ | FILE_SHARE_WRITE, sec_none_cloexec (flags),
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OPEN_EXISTING, 0, 0);
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if (h == INVALID_HANDLE_VALUE)
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