This change refactors the process group implementation and adds support for sessions. The setsid(2) and getsid(2) system calls were added. psctl(2) now has PSCTL_TTYNAME, which lets you get the name of a process's terminal, and ps(1) now uses it. The initial terminal is now called /dev/tty1. /dev/tty is now a factory for the current terminal. A global lock now protects the process hierarchy which makes it safe to access other processes. This refactor removes potential vulnerabilities and increases system robustness. A number of terminal ioctls have been added. This is a compatible ABI change.
61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
/*
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* Copyright (c) 2012, 2014, 2015, 2016 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* logterminal.h
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* A simple terminal that writes to the kernel log.
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*/
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#ifndef SORTIX_LOGTERMINAL_H
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#define SORTIX_LOGTERMINAL_H
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#include "tty.h"
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namespace Sortix {
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class LogTerminal : public TTY, public KeyboardOwner
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{
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public:
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LogTerminal(dev_t dev, mode_t mode, uid_t owner, gid_t group,
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Keyboard* keyboard, KeyboardLayoutExecutor* kblayout,
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const char* name);
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virtual ~LogTerminal();
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public:
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virtual int sync(ioctx_t* ctx);
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virtual ssize_t tcgetblob(ioctx_t* ctx, const char* name, void* buffer, size_t count);
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virtual ssize_t tcsetblob(ioctx_t* ctx, const char* name, const void* buffer, size_t count);
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virtual int tcgetwincurpos(ioctx_t* ctx, struct wincurpos* wcp);
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virtual int ioctl(ioctx_t* ctx, int cmd, uintptr_t arg);
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public:
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virtual void OnKeystroke(Keyboard* keyboard, void* user);
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protected:
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virtual void tty_output(const unsigned char* buffer, size_t length);
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private:
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void ProcessKeystroke(int kbkey);
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private:
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Keyboard* keyboard;
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KeyboardLayoutExecutor* kblayout;
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int modifiers;
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};
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} // namespace Sortix
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#endif
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