qemu-e2k/chardev
Daniel P. Berrangé 1507bd136f chardev: don't splatter terminal settings on exit if not previously set
The stdio chardev finalize method calls term_exit() to restore the
original terminal settings that were saved in the "oldtty" global. If
the qemu_chr_open_stdio() method exited with an error, we might not have
any original terminal settings saved in "oldtty" yet.

eg

  $ qemu-system-x86_64 -monitor stdio -daemonize
  qemu-system-x86_64: -monitor stdio: cannot use stdio with -daemonize

will cause QEMU to splatter the terminal settings with an all-zeros
"struct termios", with predictably unpleasant results. Fortunately the
existing "stdio_in_use" flag is suitable witness for whether "oldtty"
contains settings that need restoring.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20180604123043.13985-1-berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28 19:05:30 +02:00
..
baum.c baum: Truncate braille device size to 84x1 2017-12-21 09:22:44 +01:00
char-console.c
char-fd.c chardev: remove context in chr_update_read_handler 2017-09-22 21:07:27 +02:00
char-fe.c chardev/char-fe: Allow NULL chardev in qemu_chr_fe_init() 2018-03-26 14:37:15 +02:00
char-file.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
char-io.c
char-mux.c mux: fix ctrl-a b again 2018-06-01 15:13:46 +02:00
char-null.c
char-parallel.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
char-pipe.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
char-pty.c chardev: fix incorrect unref of source 2018-02-05 13:54:39 +01:00
char-ringbuf.c Include less of the generated modular QAPI headers 2018-03-02 13:45:50 -06:00
char-serial.c char: Remove unwanted crlf conversion 2018-06-01 15:14:31 +02:00
char-socket.c chardev-socket: remove useless if 2018-03-26 14:37:14 +02:00
char-stdio.c chardev: don't splatter terminal settings on exit if not previously set 2018-06-28 19:05:30 +02:00
char-udp.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
char-win-stdio.c
char-win.c
char.c * Record-replay lockstep execution, log dumper and fixes (Alex, Pavel) 2018-03-16 11:05:03 +00:00
Makefile.objs
msmouse.c
spice.c Move include qemu/option.h from qemu-common.h to actual users 2018-02-09 13:52:16 +01:00
testdev.c
trace-events
wctablet.c misc: remove headers implicitly included 2017-12-18 17:07:02 +03:00