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Kernel: Added TIOCSTI ioctl placeholder (#6037)

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Added a dummy TIOCSTI ioctl placeholder. This is a dangerous ioctl that
can be used to inject input into a tty. Added for compatibility. Always
fails with EIO.
This commit is contained in:
Baitinq 2021-03-31 22:58:41 +02:00 • committed by GitHub
parent 6718941715
commit 19c578024b
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2 changed files with 4 additions and 0 deletions
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2
Kernel/TTY/TTY.cpp
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@ -414,6 +414,8 @@ int TTY::ioctl(FileDescription&, unsigned request, FlatPtr arg)
case TIOCSCTTY:
current_process.set_tty(this);
return 0;
case TIOCSTI:
return -EIO;
case TIOCNOTTY:
current_process.set_tty(nullptr);
return 0;

2
Userland/Libraries/LibC/sys/ioctl_numbers.h
View file

@ -55,6 +55,7 @@ enum IOCtlNumber {
TCFLSH,
TIOCGWINSZ,
TIOCSCTTY,
TIOCSTI,
TIOCNOTTY,
TIOCSWINSZ,
FB_IOCTL_GET_SIZE_IN_BYTES,
@ -81,6 +82,7 @@ enum IOCtlNumber {
#define TCFLSH TCFLSH
#define TIOCGWINSZ TIOCGWINSZ
#define TIOCSCTTY TIOCSCTTY
#define TIOCSTI TIOCSTI
#define TIOCNOTTY TIOCNOTTY
#define TIOCSWINSZ TIOCSWINSZ
#define FB_IOCTL_GET_SIZE_IN_BYTES FB_IOCTL_GET_SIZE_IN_BYTES