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| author | Karel Zak | 2012-07-12 16:33:52 +0200 |
|---|---|---|
| committer | Karel Zak | 2012-07-12 16:35:01 +0200 |
| commit | 2e7035646eb85851171cc2e989bfa858a4f00cd4 (patch) | |
| tree | c85abd212010baea92a649a744178448f610e291 /login-utils/login.c | |
| parent | agetty: close tty before vhangup() (diff) | |
| download | kernel-qcow2-util-linux-2e7035646eb85851171cc2e989bfa858a4f00cd4.tar.gz kernel-qcow2-util-linux-2e7035646eb85851171cc2e989bfa858a4f00cd4.tar.xz kernel-qcow2-util-linux-2e7035646eb85851171cc2e989bfa858a4f00cd4.zip | |
login: close tty before vhangup()
Let's close all tty file descriptors before vhangup() call.
References: https://lkml.org/lkml/2012/6/5/145
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'login-utils/login.c')
| -rw-r--r-- | login-utils/login.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/login-utils/login.c b/login-utils/login.c index fe13d8d1d..c0cc00a66 100644 --- a/login-utils/login.c +++ b/login-utils/login.c @@ -409,6 +409,14 @@ static void init_tty(struct login_context *cxt) /* Kill processes left on this tty */ tcsetattr(0, TCSAFLUSH, &ttt); + /* + * Let's close file decriptors before vhangup + * https://lkml.org/lkml/2012/6/5/145 + */ + close(STDIN_FILENO); + close(STDOUT_FILENO); + close(STDERR_FILENO); + signal(SIGHUP, SIG_IGN); /* so vhangup() wont kill us */ vhangup(); signal(SIGHUP, SIG_DFL); |