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driver: Check if process has an associated terminal

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Return ENOTTY if thisProcess->tty is null for any operation.
This commit is contained in:
EnderIce2 2024-10-13 14:58:29 +03:00
parent 396ad681ba
commit a2e9747ee8
Signed by untrusted user who does not match committer: enderice2
GPG Key ID: EACC3AD603BAB4DD
1 changed files with 30 additions and 5 deletions
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35
core/driver/daemon.cpp
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@ -154,7 +154,12 @@ namespace Driver
case 6: /* /dev/kcon */
return KernelConsole::CurrentTerminal.load()->Read(Buffer, Size, Offset);
case 7: /* /dev/tty */
return ((TTY::TeletypeDriver *)thisProcess->tty)->Read(Buffer, Size, Offset);
{
TTY::TeletypeDriver *tty = (TTY::TeletypeDriver *)thisProcess->tty;
if (tty == nullptr)
return -ENOTTY;
return tty->Read(Buffer, Size, Offset);
}
case 8: /* /dev/ptmx */
return -ENOSYS;
default:
@ -250,7 +255,12 @@ namespace Driver
case 6: /* /dev/kcon */
return KernelConsole::CurrentTerminal.load()->Write(Buffer, Size, Offset);
case 7: /* /dev/tty */
return ((TTY::TeletypeDriver *)thisProcess->tty)->Write(Buffer, Size, Offset);
{
TTY::TeletypeDriver *tty = (TTY::TeletypeDriver *)thisProcess->tty;
if (tty == nullptr)
return -ENOTTY;
return tty->Write(Buffer, Size, Offset);
}
case 8: /* /dev/ptmx */
return -ENOSYS;
default:
@ -311,7 +321,12 @@ namespace Driver
case 6: /* /dev/kcon */
return KernelConsole::CurrentTerminal.load()->Open(Flags, Mode);
case 7: /* /dev/tty */
return ((TTY::TeletypeDriver *)thisProcess->tty)->Open(Flags, Mode);
{
TTY::TeletypeDriver *tty = (TTY::TeletypeDriver *)thisProcess->tty;
if (tty == nullptr)
return -ENOTTY;
return tty->Open(Flags, Mode);
}
case 8: /* /dev/ptmx */
return ptmx->Open();
default:
@ -367,7 +382,12 @@ namespace Driver
case 6: /* /dev/kcon */
return KernelConsole::CurrentTerminal.load()->Close();
case 7: /* /dev/tty */
return ((TTY::TeletypeDriver *)thisProcess->tty)->Close();
{
TTY::TeletypeDriver *tty = (TTY::TeletypeDriver *)thisProcess->tty;
if (tty == nullptr)
return -ENOTTY;
return tty->Close();
}
case 8: /* /dev/ptmx */
return ptmx->Close();
default:
@ -423,7 +443,12 @@ namespace Driver
case 6: /* /dev/kcon */
return KernelConsole::CurrentTerminal.load()->Ioctl(Request, Argp);
case 7: /* /dev/tty */
return ((TTY::TeletypeDriver *)thisProcess->tty)->Ioctl(Request, Argp);
{
TTY::TeletypeDriver *tty = (TTY::TeletypeDriver *)thisProcess->tty;
if (tty == nullptr)
return -ENOTTY;
return tty->Ioctl(Request, Argp);
}
case 8: /* /dev/ptmx */
return -ENOSYS;
default: