Add termios(2).

init/init.c++

@@ -25,6 +25,7 @@
 
 #include <sys/mount.h>
 #include <sys/stat.h>
+#include <sys/termmode.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 
@@ -145,7 +146,17 @@ int child()
 	setenv("INIT_PID", init_pid_str, 1);
 
 	setpgid(0, 0);
-	tcsetpgrp(0, getpid());
+
+	sigset_t oldset, sigs;
+	sigemptyset(&sigs);
+	sigaddset(&sigs, SIGTTOU);
+	sigprocmask(SIG_BLOCK, &sigs, &oldset);
+	tcsetpgrp(0, getpgid(0));
+	sigprocmask(SIG_SETMASK, &oldset, NULL);
+
+	unsigned int termmode = 0;
+	gettermmode(0, &termmode);
+	settermmode(0, termmode & ~TERMMODE_DISABLE);
 
 	const char* default_shell = "sh";
 	const char* default_home = "/root";

kernel/debugger.cpp

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2013, 2014.
+    Copyright(C) Jonas 'Sortie' Termansen 2013, 2014, 2015, 2016.
 
     This file is part of Sortix.
 
@@ -110,7 +110,7 @@ void PrintChar(char c)
 {
 	if ( c == '\n' )
 		Newline();
-	else if ( c == '\b' )
+	else if ( c == '\b' || c == 127 )
 	{
 		if ( column )
 			column--;
@@ -290,11 +290,11 @@ void ReadCommand(char* buffer, size_t buffer_length)
 			continue;
 
 		// Handle backspace.
-		if ( c == '\b' )
+		if ( c == '\b' || c == 127 )
 		{
 			if ( !written )
 				continue;
-			PrintChar(c);
+			PrintChar('\b');
 			written--;
 			continue;
 		}

kernel/descriptor.cpp

@@ -828,4 +828,39 @@ Ref<Descriptor> Descriptor::fsm_mount(ioctx_t* ctx,
 	return result;
 }
 
+int Descriptor::tcdrain(ioctx_t* ctx)
+{
+	return vnode->tcdrain(ctx);
+}
+
+int Descriptor::tcflow(ioctx_t* ctx, int action)
+{
+	return vnode->tcflow(ctx, action);
+}
+
+int Descriptor::tcflush(ioctx_t* ctx, int queue_selector)
+{
+	return vnode->tcflush(ctx, queue_selector);
+}
+
+int Descriptor::tcgetattr(ioctx_t* ctx, struct termios* tio)
+{
+	return vnode->tcgetattr(ctx, tio);
+}
+
+pid_t Descriptor::tcgetsid(ioctx_t* ctx)
+{
+	return vnode->tcgetsid(ctx);
+}
+
+int Descriptor::tcsendbreak(ioctx_t* ctx, int duration)
+{
+	return vnode->tcsendbreak(ctx, duration);
+}
+
+int Descriptor::tcsetattr(ioctx_t* ctx, int actions, const struct termios* tio)
+{
+	return vnode->tcsetattr(ctx, actions, tio);
+}
+
 } // namespace Sortix

kernel/fs/user.cpp

@@ -36,8 +36,8 @@
 #include <sortix/dirent.h>
 #include <sortix/fcntl.h>
 #include <sortix/stat.h>
-#include <sortix/termios.h>
 #include <sortix/timespec.h>
+#include <sortix/winsize.h>
 
 #include <fsmarshall-msg.h>
 
@@ -255,6 +255,13 @@ public:
 	virtual ssize_t tcgetblob(ioctx_t* ctx, const char* name, void* buffer, size_t count);
 	virtual ssize_t tcsetblob(ioctx_t* ctx, const char* name, const void* buffer, size_t count);
 	virtual int unmounted(ioctx_t* ctx);
+	virtual int tcdrain(ioctx_t* ctx);
+	virtual int tcflow(ioctx_t* ctx, int action);
+	virtual int tcflush(ioctx_t* ctx, int queue_selector);
+	virtual int tcgetattr(ioctx_t* ctx, struct termios* tio);
+	virtual pid_t tcgetsid(ioctx_t* ctx);
+	virtual int tcsendbreak(ioctx_t* ctx, int duration);
+	virtual int tcsetattr(ioctx_t* ctx, int actions, const struct termios* tio);
 
 private:
 	bool SendMessage(Channel* channel, size_t type, void* ptr, size_t size,
@@ -1472,6 +1479,120 @@ int Unode::unmounted(ioctx_t* /*ctx*/)
 	return 0;
 }
 
+int Unode::tcdrain(ioctx_t* ctx)
+{
+	Channel* channel = server->Connect(ctx);
+	if ( !channel )
+		return -1;
+	int ret = -1;
+	struct fsm_req_tcdrain msg;
+	msg.ino = ino;
+	if ( SendMessage(channel, FSM_REQ_TCDRAIN, &msg, sizeof(msg)) &&
+	     RecvMessage(channel, FSM_RESP_SUCCESS, NULL, 0) )
+		ret = 0;
+	channel->KernelClose();
+	return ret;
+}
+
+int Unode::tcflow(ioctx_t* ctx, int action)
+{
+	Channel* channel = server->Connect(ctx);
+	if ( !channel )
+		return -1;
+	int ret = -1;
+	struct fsm_req_tcflow msg;
+	msg.ino = ino;
+	msg.action = action;
+	if ( SendMessage(channel, FSM_REQ_TCFLOW, &msg, sizeof(msg)) &&
+	     RecvMessage(channel, FSM_RESP_SUCCESS, NULL, 0) )
+		ret = 0;
+	channel->KernelClose();
+	return ret;
+}
+
+int Unode::tcflush(ioctx_t* ctx, int queue_selector)
+{
+	Channel* channel = server->Connect(ctx);
+	if ( !channel )
+		return -1;
+	int ret = -1;
+	struct fsm_req_tcflush msg;
+	msg.ino = ino;
+	msg.queue_selector = queue_selector;
+	if ( SendMessage(channel, FSM_REQ_TCFLUSH, &msg, sizeof(msg)) &&
+	     RecvMessage(channel, FSM_RESP_SUCCESS, NULL, 0) )
+		ret = 0;
+	channel->KernelClose();
+	return ret;
+}
+
+int Unode::tcgetattr(ioctx_t* ctx, struct termios* io_tio)
+{
+	Channel* channel = server->Connect(ctx);
+	if ( !channel )
+		return -1;
+	int ret = -1;
+	struct fsm_req_tcgetattr msg;
+	struct fsm_resp_tcgetattr resp;
+	msg.ino = ino;
+	if ( SendMessage(channel, FSM_REQ_TCGETATTR, &msg, sizeof(msg)) &&
+	     RecvMessage(channel, FSM_RESP_TCGETATTR, &msg, sizeof(msg)) &&
+	     ctx->copy_to_dest(io_tio, &resp.tio, sizeof(resp.tio)) )
+		ret = 0;
+	channel->KernelClose();
+	return ret;
+}
+
+pid_t Unode::tcgetsid(ioctx_t* ctx)
+{
+	Channel* channel = server->Connect(ctx);
+	if ( !channel )
+		return -1;
+	pid_t ret = -1;
+	struct fsm_req_tcgetsid msg;
+	struct fsm_resp_tcgetsid resp;
+	msg.ino = ino;
+	if ( SendMessage(channel, FSM_REQ_TCGETSID, &msg, sizeof(msg)) &&
+	     RecvMessage(channel, FSM_RESP_TCGETSID, &msg, sizeof(msg)) )
+		ret = resp.sid;
+	channel->KernelClose();
+	return ret;
+}
+
+int Unode::tcsendbreak(ioctx_t* ctx, int duration)
+{
+	Channel* channel = server->Connect(ctx);
+	if ( !channel )
+		return -1;
+	int ret = -1;
+	struct fsm_req_tcsendbreak msg;
+	msg.ino = ino;
+	msg.duration = duration;
+	if ( SendMessage(channel, FSM_REQ_TCSENDBREAK, &msg, sizeof(msg)) &&
+	     RecvMessage(channel, FSM_RESP_SUCCESS, NULL, 0) )
+		ret = 0;
+	channel->KernelClose();
+	return ret;
+}
+
+int Unode::tcsetattr(ioctx_t* ctx, int actions, const struct termios* user_tio)
+{
+	struct fsm_req_tcsetattr msg;
+	if ( !ctx->copy_from_src(&msg.tio, user_tio, sizeof(msg.tio)) )
+		return -1;
+	Channel* channel = server->Connect(ctx);
+	if ( !channel )
+		return -1;
+	int ret = -1;
+	msg.ino = ino;
+	msg.actions = actions;
+	if ( SendMessage(channel, FSM_REQ_TCSETATTR, &msg, sizeof(msg)) &&
+	     RecvMessage(channel, FSM_RESP_SUCCESS, NULL, 0) )
+		ret = 0;
+	channel->KernelClose();
+	return ret;
+}
+
 bool Bootstrap(Ref<Inode>* out_root,
                Ref<Inode>* out_server,
                const struct stat* rootst)

kernel/include/sortix/ioctl.h

@@ -0,0 +1,41 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2016.
+
+    This file is part of Sortix.
+
+    Sortix is free software: you can redistribute it and/or modify it under the
+    terms of the GNU General Public License as published by the Free Software
+    Foundation, either version 3 of the License, or (at your option) any later
+    version.
+
+    Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
+    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+    FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+    details.
+
+    You should have received a copy of the GNU General Public License along with
+    Sortix. If not, see <http://www.gnu.org/licenses/>.
+
+    sortix/ioctl.h
+    Miscellaneous device control interface.
+
+*******************************************************************************/
+
+#ifndef INCLUDE_SORTIX_IOCTL_H
+#define INCLUDE_SORTIX_IOCTL_H
+
+#define __IOCTL_TYPE_EXP 3 /* 2^3 kinds of argument types supported.*/
+#define __IOCTL_TYPE_MASK ((1 << __IOCTL_TYPE_EXP) - 1)
+#define __IOCTL_TYPE_VOID 0
+#define __IOCTL_TYPE_INT 1
+#define __IOCTL_TYPE_LONG 2
+#define __IOCTL_TYPE_PTR 3
+/* 4-7 is unused in case of future expansion. */
+#define __IOCTL(index, type) ((index) << __IOCTL_TYPE_EXP | (type))
+#define __IOCTL_INDEX(value) ((value) >> __IOCTL_TYPE_EXP)
+#define __IOCTL_TYPE(value) ((value) & __IOCTL_TYPE_MASK)
+
+#define TIOCGWINSZ __IOCTL(1, __IOCTL_TYPE_PTR)
+
+#endif

kernel/include/sortix/kernel/descriptor.h

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014.
+    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014, 2015.
 
     This file is part of Sortix.
 
@@ -36,6 +36,7 @@
 
 struct stat;
 struct statvfs;
+struct termios;
 struct wincurpos;
 struct winsize;
 struct kernel_dirent;
@@ -109,6 +110,13 @@ public:
 	int fsm_fsbind(ioctx_t* ctx, Ref<Descriptor> target, int flags);
 	Ref<Descriptor> fsm_mount(ioctx_t* ctx, const char* filename,
 	                          const struct stat* rootst, int flags);
+	int tcdrain(ioctx_t* ctx);
+	int tcflow(ioctx_t* ctx, int action);
+	int tcflush(ioctx_t* ctx, int queue_selector);
+	int tcgetattr(ioctx_t* ctx, struct termios* tio);
+	pid_t tcgetsid(ioctx_t* ctx);
+	int tcsendbreak(ioctx_t* ctx, int duration);
+	int tcsetattr(ioctx_t* ctx, int actions, const struct termios* tio);
 
 private:
 	Ref<Descriptor> open_elem(ioctx_t* ctx, const char* filename, int flags,

kernel/include/sortix/kernel/inode.h

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014.
+    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014, 2015.
 
     This file is part of Sortix.
 
@@ -36,6 +36,7 @@
 
 struct stat;
 struct statvfs;
+struct termios;
 struct wincurpos;
 struct winsize;
 struct kernel_dirent;
@@ -113,6 +114,13 @@ public:
 	virtual ssize_t tcgetblob(ioctx_t* ctx, const char* name, void* buffer, size_t count) = 0;
 	virtual ssize_t tcsetblob(ioctx_t* ctx, const char* name, const void* buffer, size_t count) = 0;
 	virtual int unmounted(ioctx_t* ctx) = 0;
+	virtual int tcdrain(ioctx_t* ctx) = 0;
+	virtual int tcflow(ioctx_t* ctx, int action) = 0;
+	virtual int tcflush(ioctx_t* ctx, int queue_selector) = 0;
+	virtual int tcgetattr(ioctx_t* ctx, struct termios* tio) = 0;
+	virtual pid_t tcgetsid(ioctx_t* ctx) = 0;
+	virtual int tcsendbreak(ioctx_t* ctx, int duration) = 0;
+	virtual int tcsetattr(ioctx_t* ctx, int actions, const struct termios* tio) = 0;
 
 };
 
@@ -201,6 +209,13 @@ public:
 	virtual ssize_t tcgetblob(ioctx_t* ctx, const char* name, void* buffer, size_t count);
 	virtual ssize_t tcsetblob(ioctx_t* ctx, const char* name, const void* buffer, size_t count);
 	virtual int unmounted(ioctx_t* ctx);
+	virtual int tcdrain(ioctx_t* ctx);
+	virtual int tcflow(ioctx_t* ctx, int action);
+	virtual int tcflush(ioctx_t* ctx, int queue_selector);
+	virtual int tcgetattr(ioctx_t* ctx, struct termios* tio);
+	virtual pid_t tcgetsid(ioctx_t* ctx);
+	virtual int tcsendbreak(ioctx_t* ctx, int duration);
+	virtual int tcsetattr(ioctx_t* ctx, int actions, const struct termios* tio);
 
 };
 

kernel/include/sortix/kernel/syscall.h

@@ -47,6 +47,7 @@
 #include <sortix/termios.h>
 #include <sortix/timespec.h>
 #include <sortix/tmns.h>
+#include <sortix/winsize.h>
 
 namespace Sortix {
 
@@ -103,7 +104,7 @@ int sys_getsockopt(int, int, int, void*, size_t*);
 int sys_gettermmode(int, unsigned*);
 uid_t sys_getuid(void);
 mode_t sys_getumask(void);
-int sys_ioctl(int, int, void*);
+int sys_ioctl(int, int, uintptr_t);
 int sys_isatty(int);
 ssize_t sys_kernelinfo(const char*, char*, size_t);
 int sys_kill(pid_t, int);
@@ -154,10 +155,17 @@ int sys_sigpending(sigset_t*);
 int sys_sigprocmask(int, const sigset_t*, sigset_t*);
 int sys_sigsuspend(const sigset_t*);
 int sys_symlinkat(const char*, int, const char*);
+int sys_tcdrain(int);
+int sys_tcflow(int, int);
+int sys_tcflush(int, int);
+int sys_tcgetattr(int, struct termios*);
 ssize_t sys_tcgetblob(int, const char*, void*, size_t);
 int sys_tcgetpgrp(int);
+pid_t sys_tcgetsid(int);
 int sys_tcgetwincurpos(int, struct wincurpos*);
 int sys_tcgetwinsize(int, struct winsize*);
+int sys_tcsendbreak(int, int);
+int sys_tcsetattr(int, int, const struct termios*);
 ssize_t sys_tcsetblob(int, const char*, const void*, size_t);
 int sys_tcsetpgrp(int, pid_t);
 pid_t sys_tfork(int, struct tfork*);

kernel/include/sortix/kernel/vnode.h

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014.
+    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014, 2015.
 
     This file is part of Sortix.
 
@@ -35,6 +35,7 @@
 
 struct stat;
 struct statvfs;
+struct termios;
 struct wincurpos;
 struct winsize;
 struct kernel_dirent;
@@ -105,6 +106,13 @@ public:
 	int unmount(ioctx_t* ctx, const char* filename, int flags);
 	int fsm_fsbind(ioctx_t* ctx, Ref<Vnode> target, int flags);
 	Ref<Vnode> fsm_mount(ioctx_t* ctx, const char* filename, const struct stat* rootst, int flags);
+	int tcdrain(ioctx_t* ctx);
+	int tcflow(ioctx_t* ctx, int action);
+	int tcflush(ioctx_t* ctx, int queue_selector);
+	int tcgetattr(ioctx_t* ctx, struct termios* tio);
+	pid_t tcgetsid(ioctx_t* ctx);
+	int tcsendbreak(ioctx_t* ctx, int duration);
+	int tcsetattr(ioctx_t* ctx, int actions, const struct termios* tio);
 
 public /*TODO: private*/:
 	Ref<Inode> inode;

kernel/include/sortix/syscall.h

@@ -180,13 +180,13 @@
 #define SYSCALL_CLOSEFROM 152
 #define SYSCALL_RESERVED1 153
 #define SYSCALL_PSCTL 154
-#define SYSCALL_RESERVED2 155
-#define SYSCALL_RESERVED3 156
-#define SYSCALL_RESERVED4 157
-#define SYSCALL_RESERVED5 158
-#define SYSCALL_RESERVED6 159
-#define SYSCALL_RESERVED7 160
-#define SYSCALL_RESERVED8 161
+#define SYSCALL_TCDRAIN 155
+#define SYSCALL_TCFLOW 156
+#define SYSCALL_TCFLUSH 157
+#define SYSCALL_TCGETATTR 158
+#define SYSCALL_TCGETSID 159
+#define SYSCALL_TCSENDBREAK 160
+#define SYSCALL_TCSETATTR 161
 #define SYSCALL_SCRAM 162
 #define SYSCALL_MAX_NUM 163 /* index of highest constant + 1 */
 

kernel/include/sortix/termios.h

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013.
+    Copyright(C) Jonas 'Sortie' Termansen 2015, 2016.
 
     This file is part of Sortix.
 
@@ -18,7 +18,7 @@
     Sortix. If not, see <http://www.gnu.org/licenses/>.
 
     sortix/termios.h
-    Defines values for termios.
+    Termios types and constants.
 
 *******************************************************************************/
 
@@ -27,34 +27,108 @@
 
 #include <sys/cdefs.h>
 
-#include <sys/__/types.h>
+#define VEOF 0
+#define VEOL 1
+#define VERASE 2
+#define VINTR 3
+#define VKILL 4
+#define VMIN 5
+#define VQUIT 6
+#define VSTART 7
+#define VSTOP 8
+#define VSUSP 9
+#define VTIME 10
+#define VWERASE 11
+#define NCCS 24
 
-#ifdef __cplusplus
-extern "C" {
+#define BRKINT (1U << 0)
+#define ICRNL (1U << 1)
+#define IGNBRK (1U << 2)
+#define IGNCR (1U << 3)
+#define IGNPAR (1U << 4)
+#define INLCR (1U << 5)
+#define INPCK (1U << 6)
+#define ISTRIP (1U << 7)
+#define IXANY (1U << 8)
+#define IXOFF (1U << 9)
+#define IXON (1U << 10)
+#define PARMRK (1U << 11)
+
+#define OPOST (1U << 0)
+
+#define B0 0
+#define B50 50
+#define B75 75
+#define B110 110
+#define B134 134
+#define B150 150
+#define B200 200
+#define B300 300
+#define B600 600
+#define B1200 1200
+#define B1800 1800
+#define B2400 2400
+#define B4800 4800
+#define B9600 9600
+#define B19200 19200
+#define B38400 38400
+
+#define CS5 (0U << 0)
+#define CS6 (1U << 0)
+#define CS7 (2U << 0)
+#define CS8 (3U << 0)
+#define CSIZE (CS5 | CS6 | CS7 | CS8)
+#define CSTOPB (1U << 2)
+#define CREAD (1U << 3)
+#define PARENB (1U << 4)
+#define PARODD (1U << 5)
+#define HUPCL (1U << 6)
+#define CLOCAL (1U << 7)
+
+#define ECHO (1U << 0)
+#define ECHOE (1U << 1)
+#define ECHOK (1U << 2)
+#define ECHONL (1U << 3)
+#define ICANON (1U << 4)
+#define IEXTEN (1U << 5)
+#define ISIG (1U << 6)
+#define NOFLSH (1U << 7)
+#define TOSTOP (1U << 8)
+/* Transitional compatibility as Sortix switches from termmode to termios. */
+#if __USE_SORTIX
+#define ISORTIX_TERMMODE (1U << 9)
+#define ISORTIX_CHARS_DISABLE (1U << 10)
+#define ISORTIX_KBKEY (1U << 11)
+#define ISORTIX_32BIT (1U << 12)
+#define ISORTIX_NONBLOCK (1U << 13)
 #endif
 
-#ifndef __size_t_defined
-#define __size_t_defined
-#define __need_size_t
-#include <stddef.h>
-#endif
+#define TCSANOW 0
+#define TCSADRAIN 1
+#define TCSAFLUSH 2
 
-struct wincurpos
+#define TCIFLUSH (1 << 0)
+#define TCOFLUSH (1 << 1)
+#define TCIOFLUSH (TCIFLUSH | TCOFLUSH)
+
+#define TCIOFF 0
+#define TCION 1
+#define TCOOFF 2
+#define TCOON 3
+
+typedef unsigned char cc_t;
+typedef unsigned int speed_t;
+typedef unsigned int tcflag_t;
+
+struct termios
 {
-	size_t wcp_row;
-	size_t wcp_col;
+	tcflag_t c_iflag;
+	tcflag_t c_oflag;
+	tcflag_t c_cflag;
+	tcflag_t c_lflag;
+	speed_t c_ispeed;
+	speed_t c_ospeed;
+	cc_t c_cc[NCCS];
 };
 
-struct winsize
-{
-	size_t ws_row;
-	size_t ws_col;
-	size_t ws_xpixel;
-	size_t ws_ypixel;
-};
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
 #endif

kernel/include/sortix/termmode.h

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2012.
+    Copyright(C) Jonas 'Sortie' Termansen 2012, 2015, 2016.
 
     This file is part of Sortix.
 
@@ -25,12 +25,16 @@
 #ifndef SORTIX_TERMMODE_H
 #define SORTIX_TERMMODE_H
 
-#define TERMMODE_KBKEY (1U<<0U)
-#define TERMMODE_UNICODE (1U<<1U)
-#define TERMMODE_SIGNAL (1U<<2U)
-#define TERMMODE_UTF8 (1U<<3U)
-#define TERMMODE_LINEBUFFER (1U<<4U)
-#define TERMMODE_ECHO (1U<<5U)
-#define TERMMODE_NONBLOCK (1U<<6U)
+#define TERMMODE_KBKEY (1U << 0) /* ISORTIX_ENABLE_KBKEY */
+#define TERMMODE_UNICODE (1U << 1) /* !ISORTIX_DISABLE_CHARS */
+#define TERMMODE_SIGNAL (1U << 2) /* ISIG */
+#define TERMMODE_UTF8 (1U << 3) /* !ISORTIX_ENABLE_32BIT */
+#define TERMMODE_LINEBUFFER (1U << 4) /* ICANON */
+#define TERMMODE_ECHO (1U << 5) /* ECHO */
+#define TERMMODE_NONBLOCK (1U << 6) /* ISORTIX_NONBLOCK */
+#define TERMMODE_TERMIOS (1U << 7) /* !ISORTIX_TERMMODE */
+#define TERMMODE_DISABLE (1U << 8) /* !CREAD */
+#define TERMMODE_NORMAL (TERMMODE_UNICODE | TERMMODE_SIGNAL | TERMMODE_UTF8 | \
+                         TERMMODE_LINEBUFFER | TERMMODE_ECHO | TERMMODE_TERMIOS)
 
 #endif

kernel/include/sortix/winsize.h

@@ -0,0 +1,52 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2015.
+
+    This file is part of Sortix.
+
+    Sortix is free software: you can redistribute it and/or modify it under the
+    terms of the GNU General Public License as published by the Free Software
+    Foundation, either version 3 of the License, or (at your option) any later
+    version.
+
+    Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
+    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+    FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+    details.
+
+    You should have received a copy of the GNU General Public License along with
+    Sortix. If not, see <http://www.gnu.org/licenses/>.
+
+    sortix/winsize.h
+    Defines values for termios.
+
+*******************************************************************************/
+
+#ifndef INCLUDE_SORTIX_WINSIZE_H
+#define INCLUDE_SORTIX_WINSIZE_H
+
+#include <sys/cdefs.h>
+
+#include <sys/__/types.h>
+
+#ifndef __size_t_defined
+#define __size_t_defined
+#define __need_size_t
+#include <stddef.h>
+#endif
+
+struct wincurpos
+{
+	size_t wcp_row;
+	size_t wcp_col;
+};
+
+struct winsize
+{
+	size_t ws_row;
+	size_t ws_col;
+	size_t ws_xpixel;
+	size_t ws_ypixel;
+};
+
+#endif

kernel/inode.cpp

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014.
+    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014, 2015.
 
     This file is part of Sortix.
 
@@ -412,4 +412,39 @@ int AbstractInode::unmounted(ioctx_t* /*ctx*/)
 	return 0;
 }
 
+int AbstractInode::tcdrain(ioctx_t* /*ctx*/)
+{
+	return errno = ENOTTY, -1;
+}
+
+int AbstractInode::tcflow(ioctx_t* /*ctx*/, int /*action*/)
+{
+	return errno = ENOTTY, -1;
+}
+
+int AbstractInode::tcflush(ioctx_t* /*ctx*/, int /*queue_selector*/)
+{
+	return errno = ENOTTY, -1;
+}
+
+int AbstractInode::tcgetattr(ioctx_t* /*ctx*/, struct termios* /*tio*/)
+{
+	return errno = ENOTTY, -1;
+}
+
+pid_t AbstractInode::tcgetsid(ioctx_t* /*ctx*/)
+{
+	return errno = ENOTTY, -1;
+}
+
+int AbstractInode::tcsendbreak(ioctx_t* /*ctx*/, int /*duration*/)
+{
+	return errno = ENOTTY, -1;
+}
+
+int AbstractInode::tcsetattr(ioctx_t* /*ctx*/, int /*actions*/, const struct termios* /*tio*/)
+{
+	return errno = ENOTTY, -1;
+}
+
 } // namespace Sortix

kernel/io.cpp

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013, 2014, 2015.
+    Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013, 2014, 2015, 2016.
 
     This file is part of Sortix.
 
@@ -33,6 +33,7 @@
 
 #include <sortix/dirent.h>
 #include <sortix/fcntl.h>
+#include <sortix/ioctl.h>
 #include <sortix/seek.h>
 #include <sortix/socket.h>
 #include <sortix/stat.h>
@@ -370,19 +371,15 @@ int sys_fcntl(int fd, int cmd, uintptr_t arg)
 	return errno = EINVAL, -1;
 }
 
-int sys_ioctl(int fd, int cmd, void* /*ptr*/)
+int sys_ioctl(int fd, int cmd, uintptr_t arg)
 {
-	Ref<Descriptor> desc = CurrentProcess()->GetDescriptor(fd);
-	if ( !desc )
-		return -1;
-	int ret = -1;
 	switch ( cmd )
 	{
+	case TIOCGWINSZ:
+		return sys_tcgetwinsize(fd, (struct winsize*) arg);
 	default:
-		errno = EINVAL;
-		break;
+		return errno = EINVAL, -1;
 	}
-	return ret;
 }
 
 ssize_t sys_readdirents(int fd, struct kernel_dirent* dirent, size_t size)
@@ -1155,4 +1152,67 @@ int sys_fsm_mountat(int dirfd, const char* path, const struct stat* rootst, int
 	return ret;
 }
 
+int sys_tcdrain(int fd)
+{
+	Ref<Descriptor> desc = CurrentProcess()->GetDescriptor(fd);
+	if ( !desc )
+		return -1;
+	ioctx_t ctx; SetupUserIOCtx(&ctx);
+	return desc->tcdrain(&ctx);
+}
+
+int sys_tcflow(int fd, int action)
+{
+	Ref<Descriptor> desc = CurrentProcess()->GetDescriptor(fd);
+	if ( !desc )
+		return -1;
+	ioctx_t ctx; SetupUserIOCtx(&ctx);
+	return desc->tcflow(&ctx, action);
+}
+
+int sys_tcflush(int fd, int queue_selector)
+{
+	Ref<Descriptor> desc = CurrentProcess()->GetDescriptor(fd);
+	if ( !desc )
+		return -1;
+	ioctx_t ctx; SetupUserIOCtx(&ctx);
+	return desc->tcflush(&ctx, queue_selector);
+}
+
+int sys_tcgetattr(int fd, struct termios* tio)
+{
+	Ref<Descriptor> desc = CurrentProcess()->GetDescriptor(fd);
+	if ( !desc )
+		return -1;
+	ioctx_t ctx; SetupUserIOCtx(&ctx);
+	return desc->tcgetattr(&ctx, tio);
+}
+
+pid_t sys_tcgetsid(int fd)
+{
+	Ref<Descriptor> desc = CurrentProcess()->GetDescriptor(fd);
+	if ( !desc )
+		return -1;
+	ioctx_t ctx; SetupUserIOCtx(&ctx);
+	return desc->tcgetsid(&ctx);
+}
+
+int sys_tcsendbreak(int fd, int duration)
+{
+	Ref<Descriptor> desc = CurrentProcess()->GetDescriptor(fd);
+	if ( !desc )
+		return -1;
+	ioctx_t ctx; SetupUserIOCtx(&ctx);
+	return desc->tcsendbreak(&ctx, duration);
+}
+
+int sys_tcsetattr(int fd, int actions, const struct termios* tio)
+{
+	Ref<Descriptor> desc = CurrentProcess()->GetDescriptor(fd);
+	if ( !desc )
+		return -1;
+	ioctx_t ctx; SetupUserIOCtx(&ctx);
+	return desc->tcsetattr(&ctx, actions, tio);
+}
+
 } // namespace Sortix

kernel/linebuffer.cpp

@@ -138,4 +138,12 @@ bool LineBuffer::CanBackspace() const
 	return bufferused - bufferfrozen;
 }
 
+void LineBuffer::Flush()
+{
+	bufferoffset = 0;
+	buffercommitted = 0;
+	bufferfrozen = 0;
+	bufferused = 0;
+}
+
 } // namespace Sortix

kernel/linebuffer.h

@@ -46,6 +46,7 @@ public:
 	void Freeze();
 	bool CanPop() const;
 	bool CanBackspace() const;
+	void Flush();
 
 private:
 	uint32_t* buffer;

kernel/logterminal.cpp

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014.
+    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014, 2015, 2016.
 
     This file is part of Sortix.
 
@@ -25,9 +25,10 @@
 #include <sys/types.h>
 
 #include <errno.h>
-#include <string.h>
-#include <stdlib.h>
+#include <signal.h>
 #include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
 #include <wchar.h>
 
 #include <sortix/fcntl.h>
@@ -37,6 +38,7 @@
 #include <sortix/stat.h>
 #include <sortix/termios.h>
 #include <sortix/termmode.h>
+#include <sortix/winsize.h>
 
 #include <sortix/kernel/inode.h>
 #include <sortix/kernel/interlock.h>
@@ -49,18 +51,86 @@
 #include <sortix/kernel/ptable.h>
 #include <sortix/kernel/refcount.h>
 #include <sortix/kernel/scheduler.h>
+#include <sortix/kernel/thread.h>
 
 #include "logterminal.h"
 
+#define CONTROL(x) (((x) - 64) & 127)
+#define M_CONTROL(x) (128 + CONTROL(x))
+
 namespace Sortix {
 
-const unsigned SUPPORTED_MODES = TERMMODE_KBKEY
-                               | TERMMODE_UNICODE
-                               | TERMMODE_SIGNAL
-                               | TERMMODE_UTF8
-                               | TERMMODE_LINEBUFFER
-                               | TERMMODE_ECHO
-                               | TERMMODE_NONBLOCK;
+static const unsigned int SUPPORTED_TERMMODES = TERMMODE_KBKEY
+                                              | TERMMODE_UNICODE
+                                              | TERMMODE_SIGNAL
+                                              | TERMMODE_UTF8
+                                              | TERMMODE_LINEBUFFER
+                                              | TERMMODE_ECHO
+                                              | TERMMODE_NONBLOCK
+                                              | TERMMODE_TERMIOS
+                                              | TERMMODE_DISABLE;
+
+static const int MODIFIER_ALT = 1 << 0;
+static const int MODIFIER_LSHIFT = 1 << 1;
+static const int MODIFIER_RSHIFT = 1 << 2;
+static const int MODIFIER_LCONTROL = 1 << 3;
+static const int MODIFIER_RCONTROL = 1 << 4;
+
+static const int SEQUENCE_1IFMOD = 1 << 0;
+static const int SEQUENCE_OSHORT = 1 << 1;
+
+struct kbkey_sequence
+{
+	const char* sequence;
+	int kbkey;
+	int flags;
+};
+
+static const struct kbkey_sequence kbkey_sequences[] =
+{
+	{ "\e[A", KBKEY_UP, SEQUENCE_1IFMOD },
+	{ "\e[B", KBKEY_DOWN, SEQUENCE_1IFMOD},
+	{ "\e[C", KBKEY_RIGHT, SEQUENCE_1IFMOD },
+	{ "\e[D", KBKEY_LEFT, SEQUENCE_1IFMOD },
+	{ "\e[F", KBKEY_END, SEQUENCE_1IFMOD },
+	{ "\e[H", KBKEY_HOME, SEQUENCE_1IFMOD },
+	{ "\e[2~", KBKEY_INSERT, 0 },
+	{ "\e[3~", KBKEY_DELETE, 0 },
+	{ "\e[5~", KBKEY_PGUP, 0 },
+	{ "\e[6~", KBKEY_PGDOWN, 0 },
+	{ "\e[1P", KBKEY_F1, SEQUENCE_OSHORT },
+	{ "\e[1Q", KBKEY_F2, SEQUENCE_OSHORT },
+	{ "\e[1R", KBKEY_F3, SEQUENCE_OSHORT },
+	{ "\e[1S", KBKEY_F4, SEQUENCE_OSHORT },
+	{ "\e[15~", KBKEY_F5, 0 },
+	{ "\e[17~", KBKEY_F6, 0 },
+	{ "\e[18~", KBKEY_F7, 0 },
+	{ "\e[19~", KBKEY_F8, 0 },
+	{ "\e[20~", KBKEY_F9, 0 },
+	{ "\e[21~", KBKEY_F10, 0 },
+	{ "\e[23~", KBKEY_F11, 0 },
+	{ "\e[24~", KBKEY_F12, 0 },
+};
+
+static inline bool IsByteUnescaped(unsigned char byte)
+{
+	return (32 <= byte && byte != 127) ||
+	       byte == '\t' || byte == '\n' || byte == '\r';
+}
+
+static inline bool IsUTF8Continuation(unsigned char byte)
+{
+	return (byte & 0b11000000) == 0b10000000;
+}
+
+static inline const struct kbkey_sequence* LookupKeystrokeSequence(int kbkey)
+{
+	size_t count = sizeof(kbkey_sequences) / sizeof(kbkey_sequences[0]);
+	for ( size_t i = 0; i < count; i++ )
+		if ( kbkey_sequences[i].kbkey == kbkey )
+			return &kbkey_sequences[i];
+	return NULL;
+}
 
 LogTerminal::LogTerminal(dev_t dev, mode_t mode, uid_t owner, gid_t group,
                          Keyboard* keyboard, KeyboardLayoutExecutor* kblayout)
@@ -74,16 +144,28 @@ LogTerminal::LogTerminal(dev_t dev, mode_t mode, uid_t owner, gid_t group,
 	this->stat_gid = group;
 	this->keyboard = keyboard;
 	this->kblayout = kblayout;
-	this->partiallywritten = 0;
-	this->control = false;
-	this->termmode = TERMMODE_UNICODE
-	               | TERMMODE_SIGNAL
-	               | TERMMODE_UTF8
-	               | TERMMODE_LINEBUFFER
-	               | TERMMODE_ECHO;
+	this->modifiers = 0;
+	memset(&tio, 0, sizeof(tio));
+	tio.c_iflag = BRKINT | ICRNL | IXANY | IXON;
+	tio.c_oflag = OPOST;
+	tio.c_cflag = CS8 /*| CREAD*/ | HUPCL; // CREAD unset for boot security.
+	tio.c_lflag = ECHO | ECHOE | ECHOK | ICANON | IEXTEN | ISIG;
+	tio.c_cc[VEOF] = CONTROL('D');
+	tio.c_cc[VEOL] = M_CONTROL('?');
+	tio.c_cc[VERASE] = CONTROL('?');
+	tio.c_cc[VINTR] = CONTROL('C');
+	tio.c_cc[VKILL] = CONTROL('U');
+	tio.c_cc[VMIN] = 1;
+	tio.c_cc[VQUIT] = CONTROL('\\');
+	tio.c_cc[VSTART] = CONTROL('Q');
+	tio.c_cc[VSTOP] = CONTROL('S');
+	tio.c_cc[VSUSP] = CONTROL('Z');
+	tio.c_cc[VTIME] = 0;
+	tio.c_cc[VWERASE] = CONTROL('W');
+	tio.c_ispeed = B38400;
+	tio.c_ospeed = B38400;
 	this->termlock = KTHREAD_MUTEX_INITIALIZER;
 	this->datacond = KTHREAD_COND_INITIALIZER;
-	this->numwaiting = 0;
 	this->numeofs = 0;
 	this->foreground_pgid = 0;
 	keyboard->SetOwner(this, NULL);
@@ -95,25 +177,86 @@ LogTerminal::~LogTerminal()
 	delete kblayout;
 }
 
-int LogTerminal::settermmode(ioctx_t* /*ctx*/, unsigned newtermmode)
+int LogTerminal::settermmode(ioctx_t* /*ctx*/, unsigned int termmode)
 {
-	if ( newtermmode & ~SUPPORTED_MODES ) { errno = EINVAL; return -1; }
 	ScopedLock lock(&termlock);
-	unsigned oldtermmode = termmode;
-	bool oldutf8 = oldtermmode & TERMMODE_UTF8;
-	bool newutf8 = newtermmode & TERMMODE_UTF8;
-	if ( oldutf8 != newutf8 )
-		partiallywritten = 0;
-	termmode = newtermmode;
-	if ( !(newtermmode & TERMMODE_LINEBUFFER) )
+	if ( !RequireForeground(SIGTTOU) )
+		return errno = EINTR, -1;
+	if ( termmode & ~SUPPORTED_TERMMODES )
+		return errno = EINVAL, -1;
+	tcflag_t old_cflag = tio.c_cflag;
+	tcflag_t new_cflag = old_cflag;
+	tcflag_t old_lflag = tio.c_lflag;
+	tcflag_t new_lflag = old_lflag;
+	if ( termmode & TERMMODE_KBKEY )
+		new_lflag |= ISORTIX_KBKEY;
+	else
+		new_lflag &= ~ISORTIX_KBKEY;
+	if ( !(termmode & TERMMODE_UNICODE) )
+		new_lflag |= ISORTIX_CHARS_DISABLE;
+	else
+		new_lflag &= ~ISORTIX_CHARS_DISABLE;
+	if ( termmode & TERMMODE_SIGNAL )
+		new_lflag |= ISIG;
+	else
+		new_lflag &= ~ISIG;
+	if ( !(termmode & TERMMODE_UTF8) )
+		new_lflag |= ISORTIX_32BIT;
+	else
+		new_lflag &= ~ISORTIX_32BIT;
+	if ( termmode & TERMMODE_LINEBUFFER )
+		new_lflag |= ICANON;
+	else
+		new_lflag &= ~ICANON;
+	if ( termmode & TERMMODE_ECHO )
+		new_lflag |= ECHO | ECHOE;
+	else
+		new_lflag &= ~(ECHO | ECHOE);
+	if ( termmode & TERMMODE_NONBLOCK )
+		new_lflag |= ISORTIX_NONBLOCK;
+	else
+		new_lflag &= ~ISORTIX_NONBLOCK;
+	if ( !(termmode & TERMMODE_TERMIOS) )
+		new_lflag |= ISORTIX_TERMMODE;
+	else
+		new_lflag &= ~ISORTIX_TERMMODE;
+	if ( !(termmode & TERMMODE_DISABLE) )
+		new_cflag |= CREAD;
+	else
+		new_cflag &= ~CREAD;
+	bool oldnoutf8 = old_lflag & ISORTIX_32BIT;
+	bool newnoutf8 = new_lflag & ISORTIX_32BIT;
+	if ( oldnoutf8 != newnoutf8 )
+		memset(&read_ps, 0, sizeof(read_ps));
+	tio.c_cflag = new_cflag;
+	tio.c_lflag = new_lflag;
+	if ( !(tio.c_lflag & ICANON) )
 		CommitLineBuffer();
-	partiallywritten = 0;
 	return 0;
 }
 
-int LogTerminal::gettermmode(ioctx_t* ctx, unsigned* mode)
+int LogTerminal::gettermmode(ioctx_t* ctx, unsigned int* mode)
 {
 	ScopedLock lock(&termlock);
+	unsigned int termmode = 0;
+	if ( tio.c_lflag & ISORTIX_KBKEY )
+		termmode |= TERMMODE_KBKEY;
+	if ( !(tio.c_lflag & ISORTIX_CHARS_DISABLE) )
+		termmode |= TERMMODE_UNICODE;
+	if ( tio.c_lflag & ISIG )
+		termmode |= TERMMODE_SIGNAL;
+	if ( !(tio.c_lflag & ISORTIX_32BIT) )
+		termmode |= TERMMODE_UTF8;
+	if ( tio.c_lflag & ICANON )
+		termmode |= TERMMODE_LINEBUFFER;
+	if ( tio.c_lflag & (ECHO | ECHOE) )
+		termmode |= TERMMODE_ECHO;
+	if ( tio.c_lflag & ISORTIX_NONBLOCK )
+		termmode |= TERMMODE_NONBLOCK;
+	if ( !(tio.c_lflag & ISORTIX_TERMMODE) )
+		termmode |= TERMMODE_TERMIOS;
+	if ( !(tio.c_cflag & CREAD) )
+		termmode |= TERMMODE_DISABLE;
 	if ( !ctx->copy_to_dest(mode, &termmode, sizeof(termmode)) )
 		return -1;
 	return 0;
@@ -121,6 +264,7 @@ int LogTerminal::gettermmode(ioctx_t* ctx, unsigned* mode)
 
 int LogTerminal::tcgetwincurpos(ioctx_t* ctx, struct wincurpos* wcp)
 {
+	ScopedLock lock(&termlock);
 	struct wincurpos retwcp;
 	memset(&retwcp, 0, sizeof(retwcp));
 	size_t cursor_column, cursor_row;
@@ -134,6 +278,7 @@ int LogTerminal::tcgetwincurpos(ioctx_t* ctx, struct wincurpos* wcp)
 
 int LogTerminal::tcgetwinsize(ioctx_t* ctx, struct winsize* ws)
 {
+	ScopedLock lock(&termlock);
 	struct winsize retws;
 	memset(&retws, 0, sizeof(retws));
 	retws.ws_col = Log::Width();
@@ -146,12 +291,16 @@ int LogTerminal::tcgetwinsize(ioctx_t* ctx, struct winsize* ws)
 int LogTerminal::tcsetpgrp(ioctx_t* /*ctx*/, pid_t pgid)
 {
 	ScopedLock lock(&termlock);
-	Process* process = CurrentProcess()->GetPTable()->Get(pgid);
-	if ( !pgid || !process )
+	if ( !RequireForeground(SIGTTOU) )
+		return errno = EINTR, -1;
+	if ( pgid <= 0 )
 		return errno = ESRCH, -1;
-	kthread_mutex_lock(&process->groupchildlock);
+	Process* process = CurrentProcess()->GetPTable()->Get(pgid);
+	if ( !process )
+		return errno = ESRCH, -1;
+	kthread_mutex_lock(&process->groupparentlock);
 	bool is_process_group = process->group == process;
-	kthread_mutex_unlock(&process->groupchildlock);
+	kthread_mutex_unlock(&process->groupparentlock);
 	if ( !is_process_group )
 		return errno = EINVAL, -1;
 	foreground_pgid = pgid;
@@ -166,25 +315,160 @@ pid_t LogTerminal::tcgetpgrp(ioctx_t* /*ctx*/)
 
 int LogTerminal::sync(ioctx_t* /*ctx*/)
 {
+	ScopedLock lock(&termlock);
 	return Log::Sync() ? 0 : -1;
 }
 
 void LogTerminal::OnKeystroke(Keyboard* kb, void* /*user*/)
 {
+	ScopedLock lock(&termlock);
 	while ( kb->HasPending() )
-		ProcessKeystroke(kb->Read());
+	{
+		int kbkey = kb->Read();
+		if ( kbkey == KBKEY_LALT )
+			modifiers |= MODIFIER_ALT;
+		else if ( kbkey == -KBKEY_LALT )
+			modifiers &= ~MODIFIER_ALT;
+		else if ( kbkey == KBKEY_LSHIFT )
+			modifiers |= MODIFIER_LSHIFT;
+		else if ( kbkey == -KBKEY_LSHIFT )
+			modifiers &= ~MODIFIER_LSHIFT;
+		else if ( kbkey == KBKEY_RSHIFT )
+			modifiers |= MODIFIER_RSHIFT;
+		else if ( kbkey == -KBKEY_RSHIFT )
+			modifiers &= ~MODIFIER_RSHIFT;
+		else if ( kbkey == KBKEY_LCTRL )
+			modifiers |= MODIFIER_LCONTROL;
+		else if ( kbkey == -KBKEY_LCTRL )
+			modifiers &= ~MODIFIER_LCONTROL;
+		else if ( kbkey == KBKEY_RCTRL )
+			modifiers |= MODIFIER_RCONTROL;
+		else if ( kbkey == -KBKEY_RCTRL )
+			modifiers &= ~MODIFIER_RCONTROL;
+		uint32_t unicode = kblayout->Translate(kbkey);
+		if ( !(tio.c_cflag & CREAD) )
+			continue;
+		ProcessKeystroke(kbkey);
+		if ( !unicode )
+			continue;
+		if ( unicode == '\n' )
+			unicode = '\r';
+		bool control = modifiers & (MODIFIER_LCONTROL | MODIFIER_RCONTROL);
+		if ( !(tio.c_cflag & ISORTIX_TERMMODE) && unicode == '\b' )
+			unicode = 127;
+		if ( control && unicode == L' ' )
+			ProcessByte(0, unicode);
+		else if ( control && (L'`' <= unicode && unicode <= L'}') )
+			ProcessByte(unicode - L'`', unicode);
+		else if ( control && (L'@' <= unicode && unicode <= L'_') )
+			ProcessByte(unicode - L'@', unicode);
+		else if ( control && unicode == L'?' )
+			ProcessByte(127, unicode);
+		else
+			ProcessUnicode(unicode);
+	}
 }
 
 void LogTerminal::ProcessKeystroke(int kbkey)
 {
-	if ( !kbkey )
+	if ( tio.c_lflag & ISORTIX_32BIT )
+	{
+		if ( tio.c_lflag & ISORTIX_KBKEY )
+		{
+			uint32_t unikbkey = KBKEY_ENCODE(kbkey);
+			if ( !linebuffer.Push(unikbkey) )
+				return;
+			if ( !(tio.c_lflag & ICANON) )
+				CommitLineBuffer();
+		}
+		return;
+	}
+
+	if ( kbkey < 0 )
 		return;
 
-	ScopedLock lock(&termlock);
+	const struct kbkey_sequence* seq = LookupKeystrokeSequence(kbkey);
+	if ( !seq )
+		return;
 
-	if ( kbkey == KBKEY_LCTRL ) { control = true; }
-	if ( kbkey == -KBKEY_LCTRL ) { control = false; }
-	if ( termmode & TERMMODE_SIGNAL && control && kbkey == KBKEY_C )
+	const char* str = seq->sequence;
+	size_t len = strlen(str);
+
+	int mods = 0;
+	if ( modifiers & (MODIFIER_LSHIFT | MODIFIER_RSHIFT) )
+		mods |= 1;
+	if ( modifiers & MODIFIER_ALT )
+		mods |= 2;
+	if ( modifiers & (MODIFIER_LCONTROL | MODIFIER_RCONTROL) )
+		mods |= 4;
+
+	if ( (seq->flags & SEQUENCE_OSHORT) && mods == 0 )
+	{
+		ProcessByte('\e');
+		ProcessByte('O');
+		ProcessByte((unsigned char) str[len-1]);
+		return;
+	}
+
+	for ( size_t i = 0; i < len - 1; i++ )
+		ProcessByte((unsigned char) str[i]);
+	if ( seq->flags & SEQUENCE_1IFMOD && mods != 0 )
+		ProcessByte('1');
+	if ( mods )
+	{
+		ProcessByte(';');
+		ProcessByte('1' + mods);
+	}
+	ProcessByte(str[len-1]);
+}
+
+void LogTerminal::ProcessString(const char* string)
+{
+	for ( size_t i = 0; string[i]; i++ )
+		ProcessByte((unsigned char) string[i]);
+}
+
+void LogTerminal::ProcessUnicode(uint32_t unicode)
+{
+	mbstate_t ps;
+	memset(&ps, 0, sizeof(ps));
+	char mb[MB_CUR_MAX];
+	size_t amount = wcrtomb(mb, unicode, &ps);
+	for ( size_t i = 0; amount != (size_t) -1 && i < amount; i++ )
+		ProcessByte((unsigned char) mb[i]);
+}
+
+bool LogTerminal::CheckHandledByte(tcflag_t lflags,
+                                   unsigned char key,
+                                   unsigned char byte)
+{
+	return (tio.c_lflag & lflags) == lflags && key && key == byte;
+}
+
+void LogTerminal::ProcessByte(unsigned char byte, uint32_t control_unicode)
+{
+	if ( byte == '\r' && tio.c_iflag & IGNCR )
+		return;
+	if ( byte == '\r' && tio.c_iflag & ICRNL )
+		byte = '\n';
+	else if ( byte == '\n' && tio.c_iflag & INLCR )
+		byte = '\r';
+
+	// TODO: tio.c_cc[VEOL]
+	// TODO: tio.c_cc[VSTART]
+	// TODO: tio.c_cc[VSTOP]
+	// TODO: tio.c_cc[VSUSP]
+
+	if ( CheckHandledByte(ISIG, tio.c_cc[VQUIT], byte) )
+	{
+		while ( linebuffer.CanBackspace() )
+			linebuffer.Backspace();
+		if ( Process* process = CurrentProcess()->GetPTable()->Get(foreground_pgid) )
+			process->DeliverGroupSignal(SIGQUIT);
+		return;
+	}
+
+	if ( CheckHandledByte(ISIG, tio.c_cc[VINTR], byte) )
 	{
 		while ( linebuffer.CanBackspace() )
 			linebuffer.Backspace();
@@ -192,236 +476,250 @@ void LogTerminal::ProcessKeystroke(int kbkey)
 			process->DeliverGroupSignal(SIGINT);
 		return;
 	}
-	if ( termmode & TERMMODE_SIGNAL && control && kbkey == KBKEY_D )
+
+	if ( CheckHandledByte(ISIG | ICANON, tio.c_cc[VEOF], byte) )
 	{
 		if ( !linebuffer.CanPop() )
 		{
 			numeofs++;
-			if ( numwaiting )
-				kthread_cond_broadcast(&datacond);
+			kthread_cond_broadcast(&datacond);
 			poll_channel.Signal(POLLIN | POLLRDNORM);
 		}
 		return;
 	}
 
-	if ( termmode & TERMMODE_LINEBUFFER && control && kbkey == KBKEY_W )
+	if ( CheckHandledByte(ISIG, tio.c_cc[VQUIT], byte) )
 	{
-		bool had_non_whitespace = false;
-	c_w_delete_more:
-		if ( !linebuffer.CanBackspace() ) { return; }
-		uint32_t delchar = linebuffer.WouldBackspace();
-		bool waskbkey = KBKEY_DECODE(delchar);
-		bool wasuni = !waskbkey;
-		bool whitespace =
-			(wasuni && (delchar == ' ' ||
-			            delchar == '\t' ||
-			            delchar == '\n')) ||
-			(waskbkey && (abs(KBKEY_DECODE(delchar)) == -KBKEY_SPACE ||
-			              abs(KBKEY_DECODE(delchar)) == -KBKEY_TAB ||
-			              abs(KBKEY_DECODE(delchar)) == -KBKEY_ENTER));
-		if ( wasuni && whitespace && had_non_whitespace )
-			return;
-		if ( wasuni && !whitespace )
-			had_non_whitespace = true;
-		linebuffer.Backspace();
-		if ( (!waskbkey || termmode & TERMMODE_KBKEY) &&
-		     (!wasuni || termmode & TERMMODE_UNICODE) &&
-		     termmode & TERMMODE_ECHO &&
-		     wasuni )
-				Log::Print("\b \b");
-		goto c_w_delete_more;
+		while ( linebuffer.CanBackspace() )
+			linebuffer.Backspace();
+		if ( Process* process = CurrentProcess()->GetPTable()->Get(foreground_pgid) )
+			process->DeliverGroupSignal(SIGQUIT);
+		return;
 	}
 
-	if ( termmode & TERMMODE_LINEBUFFER && control && kbkey == KBKEY_U )
+	if ( CheckHandledByte(ICANON, tio.c_cc[VERASE], byte) ||
+	     CheckHandledByte(ICANON | ISORTIX_TERMMODE, '\b', byte) )
 	{
 		while ( linebuffer.CanBackspace() )
 		{
 			uint32_t delchar = linebuffer.Backspace();
-			bool waskbkey = KBKEY_DECODE(delchar);
-			bool wasuni = !waskbkey;
-			if ( (!waskbkey || termmode & TERMMODE_KBKEY) &&
-				 (!wasuni || termmode & TERMMODE_UNICODE) &&
-				 termmode & TERMMODE_ECHO &&
-				 wasuni )
+			if ( 256 <= delchar )
+				continue;
+			if ( IsUTF8Continuation(delchar) )
+				continue;
+			if ( tio.c_lflag & ECHOE )
+			{
+				// TODO: Handle tab specially. (Is that even possible without
+				//       knowing cursor position?).
 				Log::Print("\b \b");
+				if ( !IsByteUnescaped(delchar) )
+					Log::Print("\b \b");
+			}
+			break;
 		}
 		return;
 	}
 
-	if ( termmode & TERMMODE_LINEBUFFER && control && kbkey == KBKEY_L )
+	if ( CheckHandledByte(ICANON, tio.c_cc[VWERASE], byte) )
+	{
+		bool had_non_whitespace = false;
+		while ( linebuffer.CanBackspace() )
+		{
+			uint32_t delchar = linebuffer.WouldBackspace();
+			if ( 256 <= delchar )
+				continue;
+			if ( IsUTF8Continuation(delchar) )
+				continue;
+			if ( delchar == L' ' || delchar == L'\t' || delchar == L'\n' )
+			{
+				if ( had_non_whitespace )
+					break;
+			}
+			else
+				had_non_whitespace = true;
+			linebuffer.Backspace();
+			if ( tio.c_lflag & ECHOE )
+			{
+				Log::Print("\b \b");
+				if ( !IsByteUnescaped(delchar) )
+					Log::Print("\b \b");
+			}
+		}
+		return;
+	}
+
+	if ( CheckHandledByte(ICANON, tio.c_cc[VKILL], byte) )
+	{
+		while ( linebuffer.CanBackspace() )
+		{
+			uint32_t delchar = linebuffer.Backspace();
+			if ( 256 <= delchar )
+				continue;
+			if ( IsUTF8Continuation(delchar) )
+				continue;
+			if ( tio.c_lflag & ECHOE )
+			{
+				Log::Print("\b \b");
+				if ( !IsByteUnescaped(delchar) )
+					Log::Print("\b \b");
+			}
+		}
+		return;
+	}
+
+	if ( CheckHandledByte(ICANON | ISORTIX_TERMMODE, CONTROL('L'), byte) )
 	{
 		while ( linebuffer.CanBackspace() )
 			linebuffer.Backspace();
-		QueueUnicode(KBKEY_ENCODE(KBKEY_ENTER));
-		QueueUnicode('\n');
-		QueueUnicode(KBKEY_ENCODE(-KBKEY_ENTER));
+		ProcessUnicode(KBKEY_ENCODE(KBKEY_ENTER));
+		ProcessByte('\n');
+		ProcessUnicode(KBKEY_ENCODE(-KBKEY_ENTER));
 		Log::PrintF("\e[H\e[2J");
 		return;
 	}
 
-	uint32_t unikbkey = KBKEY_ENCODE(kbkey);
-	QueueUnicode(unikbkey);
-	uint32_t unicode = kblayout->Translate(kbkey);
-	if ( 0 < kbkey )
-		QueueUnicode(unicode);
-}
-
-void LogTerminal::QueueUnicode(uint32_t unicode)
-{
-	if ( !unicode )
+	if ( tio.c_lflag & ISORTIX_CHARS_DISABLE )
 		return;
 
-	int kbkey = KBKEY_DECODE(unicode);
-	int abskbkey = (kbkey < 0) ? -kbkey : kbkey;
-	bool wasenter = kbkey == KBKEY_ENTER || unicode == '\n';
-	bool kbkeymode = termmode & TERMMODE_KBKEY;
-	bool unicodemode = termmode & TERMMODE_UNICODE;
-	bool linemode = termmode & TERMMODE_LINEBUFFER;
-	bool echomode = termmode & TERMMODE_ECHO;
-
-	if ( linemode && abskbkey == KBKEY_BKSPC ) { return; }
-	while ( linemode && unicode == '\b' )
+	if ( control_unicode &&
+	     !(tio.c_lflag & (ICANON | ISIG)) &&
+	     tio.c_lflag & ISORTIX_KBKEY )
 	{
-		if ( !linebuffer.CanBackspace() ) { return; }
-		uint32_t delchar = linebuffer.Backspace();
-		bool waskbkey = KBKEY_DECODE(delchar);
-		bool wasuni = !waskbkey;
-		if ( waskbkey && !kbkeymode ) { continue; }
-		if ( wasuni && !unicodemode ) { continue; }
-		if ( !echomode ) { return; }
-		if ( wasuni ) { Log::Print("\b \b"); }
+		ProcessUnicode(control_unicode);
 		return;
 	}
 
-	if ( !linebuffer.Push(unicode) )
-	{
-		Log::PrintF("Warning: LogTerminal driver dropping keystroke due "
-		            "to insufficient buffer space\n");
+	if ( !linebuffer.Push(byte) )
 		return;
-	}
 
-	// TODO: Could it be the right thing to print the unicode character even
-	// if it is unprintable (it's an encoded keystroke)?
-	if ( !KBKEY_DECODE(unicode) && echomode )
+	if ( tio.c_lflag & ECHO )
 	{
-		mbstate_t ps;
-		memset(&ps, 0, sizeof(ps));
-		char utf8buf[MB_CUR_MAX];
-		size_t num_bytes = wcrtomb(utf8buf, (wchar_t) unicode, &ps);
-		if ( num_bytes == 1 && utf8buf[0] == '\b' )
-			Log::PrintData("\b \b", 3);
+		if ( IsByteUnescaped(byte) )
+			Log::PrintData(&byte, 1);
 		else
-			Log::PrintData(utf8buf, num_bytes);
+			Log::PrintF("^%c", CONTROL(byte));
 	}
 
-	bool commit = !linemode || wasenter;
-	if ( commit )
+	if ( !(tio.c_lflag & ICANON) || byte == '\n' )
 		CommitLineBuffer();
 }
 
 void LogTerminal::CommitLineBuffer()
 {
 	linebuffer.Commit();
-	if ( numwaiting )
+	if ( linebuffer.CanPop() || numeofs )
+	{
 		kthread_cond_broadcast(&datacond);
-	poll_channel.Signal(POLLIN | POLLRDNORM);
+		poll_channel.Signal(POLLIN | POLLRDNORM);
+	}
 }
 
 ssize_t LogTerminal::read(ioctx_t* ctx, uint8_t* userbuf, size_t count)
 {
 	ScopedLockSignal lock(&termlock);
-	if ( !lock.IsAcquired() ) { errno = EINTR; return -1; }
+	if ( !lock.IsAcquired() )
+		return errno = EINTR, -1;
+	if ( !RequireForeground(SIGTTIN) )
+		return errno = EINTR, -1;
 	size_t sofar = 0;
 	size_t left = count;
-	bool blocking = !(termmode & TERMMODE_NONBLOCK);
-	while ( left && !linebuffer.CanPop() && blocking && !numeofs )
-	{
-		if ( ctx->dflags & O_NONBLOCK )
-			return errno = EWOULDBLOCK, -1;
-		numwaiting++;
-		bool abort = !kthread_cond_wait_signal(&datacond, &termlock);
-		numwaiting--;
-		if ( abort ) { errno = EINTR; return -1; }
-	}
-	if ( left && !linebuffer.CanPop() && !blocking && !numeofs )
-	{
-		errno = EWOULDBLOCK;
-		return -1;
-	}
-	if ( numeofs )
-	{
-		numeofs--;
-		return 0;
-	}
-	while ( left && linebuffer.CanPop() )
+	bool nonblocking = tio.c_lflag & ISORTIX_NONBLOCK ||
+	                   ctx->dflags & O_NONBLOCK;
+	while ( left )
 	{
+		while ( !(linebuffer.CanPop() || numeofs) )
+		{
+			if ( sofar )
+				return sofar;
+			if ( nonblocking )
+				return errno = EWOULDBLOCK, -1;
+			if ( !kthread_cond_wait_signal(&datacond, &termlock) )
+				return errno = EINTR, -1;
+			if ( !RequireForeground(SIGTTIN) )
+				return errno = EINTR, -1;
+		}
+		if ( numeofs )
+		{
+			if ( sofar )
+				return sofar;
+			return numeofs--, 0;
+		}
 		uint32_t codepoint = linebuffer.Peek();
-		int kbkey = KBKEY_DECODE(codepoint);
-
-		bool ignore = false;
-		if ( !(termmode & TERMMODE_KBKEY) && kbkey ) { ignore = true; }
-		if ( !(termmode & TERMMODE_UNICODE) && !kbkey ) { ignore = true; }
-		if ( ignore ) { linebuffer.Pop(); continue; }
-
-		uint8_t* buf;
-		size_t bufsize;
-		uint8_t codepointbuf[4];
-		char utf8buf[MB_CUR_MAX];
-
-		if ( termmode & TERMMODE_UTF8 )
+		if ( tio.c_lflag & ISORTIX_32BIT )
 		{
-			mbstate_t ps;
-			memset(&ps, 0, sizeof(ps));
-			size_t num_bytes = wcrtomb(utf8buf, (wchar_t) codepoint, &ps);
-			if ( num_bytes == (size_t) -1)
+			if ( left < sizeof(codepoint) )
+				return sofar;
+			linebuffer.Pop();
+			if ( 256 <= codepoint && !(tio.c_lflag & ISORTIX_KBKEY) )
+				continue;
+			if ( codepoint < 256 && tio.c_lflag & ISORTIX_CHARS_DISABLE )
+				continue;
+			if ( codepoint < 256 )
 			{
-				Log::PrintF("Warning: logterminal driver dropping invalid "
-				            "codepoint 0x%x\n", codepoint);
-				num_bytes = 0;
+				char c = codepoint;
+				wchar_t wc;
+				size_t amount = mbrtowc(&wc, &c, 1, &read_ps);
+				if ( amount == (size_t) -2 )
+					continue;
+				if ( amount == (size_t) -1 )
+				{
+					memset(&read_ps, 0, sizeof(read_ps));
+					wc = 0xFFFD; /* REPLACEMENT CHARACTER */
+				}
+				codepoint = wc;
 			}
-			buf = (uint8_t*) utf8buf;
-			bufsize = num_bytes;
+			if ( !ctx->copy_to_dest(userbuf + sofar, &codepoint,
+			                        sizeof(codepoint)) )
+				return sofar ? sofar : -1;
+			left -= sizeof(codepoint);
+			sofar += sizeof(codepoint);
+			continue;
 		}
-		else
+		if ( 256 <= codepoint )
 		{
-			codepointbuf[0] = (codepoint >> 24U) & 0xFFU;
-			codepointbuf[1] = (codepoint >> 16U) & 0xFFU;
-			codepointbuf[2] = (codepoint >> 8U) & 0xFFU;
-			codepointbuf[3] = (codepoint >> 0U) & 0xFFU;
-			buf = (uint8_t*) &codepointbuf;
-			bufsize = sizeof(codepointbuf);
-			// TODO: Whoops, the above is big-endian and the user programs
-			// expect the data to be in the host endian. That's bad. For now
-			// just send the data in host endian, but this will break when
-			// terminals are accessed over the network.
-			buf = (uint8_t*) &codepoint;
+			linebuffer.Pop();
+			continue;
 		}
-		if ( bufsize < partiallywritten ) { partiallywritten = bufsize; }
-		buf += partiallywritten;
-		bufsize -= partiallywritten;
-		if ( sofar && left < bufsize ) { return sofar; }
-		size_t amount = left < bufsize ? left : bufsize;
-		ctx->copy_to_dest(userbuf + sofar, buf, amount);
-		partiallywritten = (amount < bufsize) ? partiallywritten + amount : 0;
-		left -= amount;
-		sofar += amount;
-		if ( !partiallywritten ) { linebuffer.Pop(); }
+		unsigned char c = codepoint;
+		if ( !ctx->copy_to_dest(userbuf + sofar, &c, 1) )
+			return sofar ? sofar : -1;
+		linebuffer.Pop();
+		left -= 1;
+		sofar += 1;
+		if ( tio.c_lflag & ICANON && c == '\n' )
+			break;
 	}
-
 	return sofar;
 }
 
 ssize_t LogTerminal::write(ioctx_t* ctx, const uint8_t* io_buffer, size_t count)
 {
+	ScopedLockSignal lock(&termlock);
+	if ( tio.c_lflag & TOSTOP && !RequireForeground(SIGTTOU) )
+		return errno = EINTR, -1;
 	// TODO: Add support for ioctx to the kernel log.
 	const size_t BUFFER_SIZE = 64UL;
-	if ( BUFFER_SIZE < count )
-		count = BUFFER_SIZE;
 	char buffer[BUFFER_SIZE];
-	if ( !ctx->copy_from_src(buffer, io_buffer, count) )
-		return -1;
-	Log::PrintData(buffer, count);
-	return count;
+	size_t sofar = 0;
+	while ( sofar < count )
+	{
+		size_t amount = count - sofar;
+		if ( BUFFER_SIZE < amount )
+			amount = BUFFER_SIZE;
+		if ( !ctx->copy_from_src(buffer, io_buffer + sofar, amount) )
+			return -1;
+		Log::PrintData(buffer, amount);
+		sofar += amount;
+		if ( sofar < count )
+		{
+			kthread_mutex_unlock(&termlock);
+			kthread_yield();
+			kthread_mutex_lock(&termlock);
+			if ( Signal::IsPending() )
+				return sofar;
+		}
+	}
+	return (ssize_t) sofar;
 }
 
 short LogTerminal::PollEventStatus()
@@ -496,4 +794,99 @@ ssize_t LogTerminal::tcsetblob(ioctx_t* ctx, const char* name, const void* buffe
 	else
 		return errno = ENOENT, -1;
 }
+
+int LogTerminal::tcdrain(ioctx_t* /*ctx*/)
+{
+	ScopedLockSignal lock(&termlock);
+	if ( !RequireForeground(SIGTTOU) )
+		return errno = EINTR, -1;
+	return 0;
+}
+
+int LogTerminal::tcflow(ioctx_t* /*ctx*/, int action)
+{
+	ScopedLockSignal lock(&termlock);
+	if ( !RequireForeground(SIGTTOU) )
+		return errno = EINTR, -1;
+	switch ( action )
+	{
+	case TCOOFF: break; // TODO: Suspend output.
+	case TCOON: break; // TODO: Resume suspended output.
+	case TCIOFF: break; // TODO: Transmit STOP character.
+	case TCION: break; // TODO: Transmit START character.
+	default: return errno = EINVAL -1;
+	}
+	return 0;
+}
+
+int LogTerminal::tcflush(ioctx_t* /*ctx*/, int queue_selector)
+{
+	if ( queue_selector & ~TCIOFLUSH )
+		return errno = EINVAL, -1;
+	ScopedLockSignal lock(&termlock);
+	if ( !RequireForeground(SIGTTOU) )
+		return errno = EINTR, -1;
+	if ( queue_selector & TCIFLUSH )
+		linebuffer.Flush();
+	return 0;
+}
+
+int LogTerminal::tcgetattr(ioctx_t* ctx, struct termios* io_tio)
+{
+	ScopedLockSignal lock(&termlock);
+	if ( !ctx->copy_to_dest(io_tio, &tio, sizeof(tio)) )
+		return -1;
+	return 0;
+}
+
+pid_t LogTerminal::tcgetsid(ioctx_t* /*ctx*/)
+{
+	// TODO: Implement sessions.
+	return 1;
+}
+
+int LogTerminal::tcsendbreak(ioctx_t* /*ctx*/, int /*duration*/)
+{
+	ScopedLockSignal lock(&termlock);
+	if ( !RequireForeground(SIGTTOU) )
+		return errno = EINTR, -1;
+	return 0;
+}
+
+int LogTerminal::tcsetattr(ioctx_t* ctx, int actions, const struct termios* io_tio)
+{
+	ScopedLockSignal lock(&termlock);
+	if ( !RequireForeground(SIGTTOU) )
+		return errno = EINTR, -1;
+	switch ( actions )
+	{
+	case TCSANOW: break;
+	case TCSADRAIN: break;
+	case TCSAFLUSH: linebuffer.Flush(); break;
+	default: return errno = EINVAL, -1;
+	}
+	if ( !ctx->copy_from_src(&tio, io_tio, sizeof(tio)) )
+		return -1;
+	// TODO: Potentially take action here if something changed.
+	return 0;
+}
+
+bool LogTerminal::RequireForeground(int sig)
+{
+	Thread* thread = CurrentThread();
+	Process* process = thread->process;
+	ScopedLock group_lock(&process->groupparentlock);
+	if ( process->group->pid == foreground_pgid )
+		return true;
+	if ( sigismember(&thread->signal_mask, sig) )
+		return true;
+	ScopedLock signal_lock(&process->signal_lock);
+	if ( process->signal_actions[sig].sa_handler == SIG_IGN )
+		return true;
+	signal_lock.Reset();
+	group_lock.Reset();
+	process->group->DeliverGroupSignal(sig);
+	return false;
+}
+
 } // namespace Sortix

kernel/logterminal.h

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2012, 2014.
+    Copyright(C) Jonas 'Sortie' Termansen 2012, 2014, 2015, 2016.
 
     This file is part of Sortix.
 
@@ -25,6 +25,10 @@
 #ifndef SORTIX_LOGTERMINAL_H
 #define SORTIX_LOGTERMINAL_H
 
+#include <wchar.h>
+
+#include <sortix/termios.h>
+
 #include <sortix/kernel/kthread.h>
 #include <sortix/kernel/inode.h>
 #include <sortix/kernel/keyboard.h>
@@ -56,30 +60,40 @@ public:
 	virtual int poll(ioctx_t* ctx, PollNode* node);
 	virtual ssize_t tcgetblob(ioctx_t* ctx, const char* name, void* buffer, size_t count);
 	virtual ssize_t tcsetblob(ioctx_t* ctx, const char* name, const void* buffer, size_t count);
-
+	virtual int tcdrain(ioctx_t* ctx);
+	virtual int tcflow(ioctx_t* ctx, int action);
+	virtual int tcflush(ioctx_t* ctx, int queue_selector);
+	virtual int tcgetattr(ioctx_t* ctx, struct termios* tio);
+	virtual pid_t tcgetsid(ioctx_t* ctx);
+	virtual int tcsendbreak(ioctx_t* ctx, int duration);
+	virtual int tcsetattr(ioctx_t* ctx, int actions, const struct termios* tio);
 
 public:
 	virtual void OnKeystroke(Keyboard* keyboard, void* user);
 
 private:
 	void ProcessKeystroke(int kbkey);
-	void QueueUnicode(uint32_t unicode);
+	void ProcessString(const char* string);
+	void ProcessUnicode(uint32_t unicode);
+	void ProcessByte(unsigned char byte, uint32_t control_unicode = 0);
 	void CommitLineBuffer();
 	short PollEventStatus();
+	bool CheckForeground();
+	bool RequireForeground(int sig);
+	bool CheckHandledByte(tcflag_t lflags, unsigned char key, unsigned char byte);
 
 private:
 	PollChannel poll_channel;
 	mutable kthread_mutex_t termlock;
 	kthread_cond_t datacond;
-	size_t numwaiting;
+	mbstate_t read_ps;
 	size_t numeofs;
 	Keyboard* keyboard;
 	KeyboardLayoutExecutor* kblayout;
 	LineBuffer linebuffer;
-	size_t partiallywritten;
-	unsigned termmode;
+	struct termios tio;
 	pid_t foreground_pgid;
-	bool control;
+	int modifiers;
 
 };
 

kernel/syscall.cpp

@@ -190,13 +190,13 @@ void* syscall_list[SYSCALL_MAX_NUM + 1] =
 	[SYSCALL_CLOSEFROM] = (void*) sys_closefrom,
 	[SYSCALL_RESERVED1] = (void*) sys_bad_syscall,
 	[SYSCALL_PSCTL] = (void*) sys_psctl,
-	[SYSCALL_RESERVED2] = (void*) sys_bad_syscall,
-	[SYSCALL_RESERVED3] = (void*) sys_bad_syscall,
-	[SYSCALL_RESERVED4] = (void*) sys_bad_syscall,
-	[SYSCALL_RESERVED5] = (void*) sys_bad_syscall,
-	[SYSCALL_RESERVED6] = (void*) sys_bad_syscall,
-	[SYSCALL_RESERVED7] = (void*) sys_bad_syscall,
-	[SYSCALL_RESERVED8] = (void*) sys_bad_syscall,
+	[SYSCALL_TCDRAIN] = (void*) sys_tcdrain,
+	[SYSCALL_TCFLOW] = (void*) sys_tcflow,
+	[SYSCALL_TCFLUSH] = (void*) sys_tcflush,
+	[SYSCALL_TCGETATTR] = (void*) sys_tcgetattr,
+	[SYSCALL_TCGETSID] = (void*) sys_tcgetsid,
+	[SYSCALL_TCSENDBREAK] = (void*) sys_tcsendbreak,
+	[SYSCALL_TCSETATTR] = (void*) sys_tcsetattr,
 	[SYSCALL_SCRAM] = (void*) sys_scram,
 	[SYSCALL_MAX_NUM] = (void*) sys_bad_syscall,
 };

kernel/vnode.cpp

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014.
+    Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014, 2015.
 
     This file is part of Sortix.
 
@@ -424,4 +424,39 @@ ssize_t Vnode::tcsetblob(ioctx_t* ctx, const char* name, const void* buffer, siz
 	return inode->tcsetblob(ctx, name, buffer, count);
 }
 
+int Vnode::tcdrain(ioctx_t* ctx)
+{
+	return inode->tcdrain(ctx);
+}
+
+int Vnode::tcflow(ioctx_t* ctx, int action)
+{
+	return inode->tcflow(ctx, action);
+}
+
+int Vnode::tcflush(ioctx_t* ctx, int queue_selector)
+{
+	return inode->tcflush(ctx, queue_selector);
+}
+
+int Vnode::tcgetattr(ioctx_t* ctx, struct termios* tio)
+{
+	return inode->tcgetattr(ctx, tio);
+}
+
+pid_t Vnode::tcgetsid(ioctx_t* ctx)
+{
+	return inode->tcgetsid(ctx);
+}
+
+int Vnode::tcsendbreak(ioctx_t* ctx, int duration)
+{
+	return inode->tcsendbreak(ctx, duration);
+}
+
+int Vnode::tcsetattr(ioctx_t* ctx, int actions, const struct termios* tio)
+{
+	return inode->tcsetattr(ctx, actions, tio);
+}
+
 } // namespace Sortix

libc/Makefile

@@ -241,6 +241,10 @@ string/strverscmp.o \
 string/strxfrm_l.o \
 string/strxfrm.o \
 string/timingsafe_memcmp.o \
+termios/cfgetispeed.o \
+termios/cfgetospeed.o \
+termios/cfsetispeed.o \
+termios/cfsetospeed.o \
 time/asctime.o \
 time/asctime_r.o \
 time/gmtime.o \
@@ -544,9 +548,16 @@ sys/uio/writev.o \
 sys/utsname/uname.o \
 sys/wait/wait.o \
 sys/wait/waitpid.o \
+termios/tcdrain.o \
+termios/tcflow.o \
+termios/tcflush.o \
+termios/tcgetattr.o \
 termios/tcgetblob.o \
+termios/tcgetsid.o \
 termios/tcgetwincurpos.o \
 termios/tcgetwinsize.o \
+termios/tcsendbreak.o \
+termios/tcsetattr.o \
 termios/tcsetblob.o \
 time/clock_getres.o \
 time/clock_gettime.o \

libc/include/fsmarshall-msg.h

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2013, 2014.
+    Copyright(C) Jonas 'Sortie' Termansen 2013, 2014, 2015.
 
     This file is part of the Sortix C Library.
 
@@ -33,6 +33,7 @@
 #include <sortix/statvfs.h>
 #include <sortix/termios.h>
 #include <sortix/timespec.h>
+#include <sortix/winsize.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -434,8 +435,66 @@ struct fsm_resp_tcgetwincurpos
 	struct wincurpos pos;
 };
 
+#define FSM_REQ_TCDRAIN 54
+struct fsm_req_tcdrain
+{
+	ino_t ino;
+};
 
-#define FSM_MSG_NUM 53
+#define FSM_REQ_TCFLOW 55
+struct fsm_req_tcflow
+{
+	ino_t ino;
+	int action;
+};
+
+#define FSM_REQ_TCFLUSH 56
+struct fsm_req_tcflush
+{
+	ino_t ino;
+	int queue_selector;
+};
+
+#define FSM_REQ_TCGETATTR 57
+struct fsm_req_tcgetattr
+{
+	ino_t ino;
+};
+
+#define FSM_RESP_TCGETATTR 58
+struct fsm_resp_tcgetattr
+{
+	struct termios tio;
+};
+
+#define FSM_REQ_TCGETSID 59
+struct fsm_req_tcgetsid
+{
+	ino_t ino;
+};
+
+#define FSM_RESP_TCGETSID 60
+struct fsm_resp_tcgetsid
+{
+	pid_t sid;
+};
+
+#define FSM_REQ_TCSENDBREAK 61
+struct fsm_req_tcsendbreak
+{
+	ino_t ino;
+	int duration;
+};
+
+#define FSM_REQ_TCSETATTR 62
+struct fsm_req_tcsetattr
+{
+	ino_t ino;
+	int actions;
+	struct termios tio;
+};
+
+#define FSM_MSG_NUM 63
 
 #ifdef __cplusplus
 } /* extern "C" */

libc/include/sys/ioctl.h

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2013.
+    Copyright(C) Jonas 'Sortie' Termansen 2013, 2016.
 
     This file is part of the Sortix C Library.
 
@@ -27,6 +27,9 @@
 
 #include <sys/cdefs.h>
 
+#include <sortix/ioctl.h>
+#include <sortix/winsize.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif

libc/include/termios.h

@@ -31,12 +31,14 @@
 
 #include <sys/__/types.h>
 
-#if __USE_SORTIX
 #include <sortix/termios.h>
+#if __USE_SORTIX
+#include <sortix/winsize.h>
 #endif
 
-#ifdef __cplusplus
-extern "C" {
+#ifndef __pid_t_defined
+#define __pid_t_defined
+typedef __pid_t pid_t;
 #endif
 
 #if __USE_SORTIX
@@ -45,13 +47,31 @@ extern "C" {
 #define __need_size_t
 #include <stddef.h>
 #endif
+#endif
 
+#if __USE_SORTIX
 #ifndef __ssize_t_defined
 #define __ssize_t_defined
 typedef __ssize_t ssize_t;
 #endif
 #endif
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+speed_t cfgetispeed(const struct termios*);
+speed_t cfgetospeed(const struct termios*);
+int cfsetispeed(struct termios*, speed_t);
+int cfsetospeed(struct termios*, speed_t);
+int tcdrain(int);
+int tcflow(int, int);
+int tcflush(int, int);
+int tcgetattr(int, struct termios*);
+pid_t tcgetsid(int);
+int tcsendbreak(int, int);
+int tcsetattr(int, int, const struct termios*);
+
 /* Functions that are Sortix extensions. */
 #if __USE_SORTIX
 ssize_t tcgetblob(int, const char*, void*, size_t);

libc/sys/ioctl/ioctl.cpp

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-    Copyright(C) Jonas 'Sortie' Termansen 2013.
+    Copyright(C) Jonas 'Sortie' Termansen 2013, 2016.
 
     This file is part of the Sortix C Library.
 
@@ -25,15 +25,25 @@
 #include <sys/ioctl.h>
 #include <sys/syscall.h>
 
+#include <errno.h>
 #include <stdarg.h>
+#include <stdint.h>
 
-DEFN_SYSCALL3(int, sys_ioctl, SYSCALL_IOCTL, int, int, void*);
+DEFN_SYSCALL3(int, sys_ioctl, SYSCALL_IOCTL, int, int, uintptr_t);
 
 extern "C" int ioctl(int fd, int request, ...)
 {
+	uintptr_t arg;
 	va_list ap;
 	va_start(ap, request);
-	void* ptr = va_arg(ap, void*);
+	switch ( __IOCTL_TYPE(request) )
+	{
+	case __IOCTL_TYPE_VOID: arg = 0; break;
+	case __IOCTL_TYPE_INT: arg = (uintptr_t) va_arg(ap, int); break;
+	case __IOCTL_TYPE_LONG: arg = (uintptr_t) va_arg(ap, long); break;
+	case __IOCTL_TYPE_PTR: arg = (uintptr_t) va_arg(ap, void*); break;
+	default: return errno = EINVAL, -1;
+	}
 	va_end(ap);
-	return sys_ioctl(fd, request, ptr);
+	return sys_ioctl(fd, request, arg);
 }

libc/termios/cfgetispeed.cpp

@@ -0,0 +1,30 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2015.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    termios/cfgetispeed.cpp
+    Get termios input speed.
+
+*******************************************************************************/
+
+#include <termios.h>
+
+extern "C" speed_t cfgetispeed(const struct termios* tio)
+{
+	return tio->c_ispeed;
+}

libc/termios/cfgetospeed.cpp

@@ -0,0 +1,30 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2015.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    termios/cfgetospeed.cpp
+    Get termios output speed.
+
+*******************************************************************************/
+
+#include <termios.h>
+
+extern "C" speed_t cfgetospeed(const struct termios* tio)
+{
+	return tio->c_ospeed;
+}

libc/termios/cfsetispeed.cpp

@@ -0,0 +1,31 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2015.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    termios/cfsetispeed.cpp
+    Set termios input speed.
+
+*******************************************************************************/
+
+#include <termios.h>
+
+extern "C" int cfsetispeed(struct termios* tio, speed_t speed)
+{
+	tio->c_ispeed = speed;
+	return 0;
+}

libc/termios/cfsetospeed.cpp

@@ -0,0 +1,31 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2015.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    termios/cfsetospeed.cpp
+    Set termios output speed.
+
+*******************************************************************************/
+
+#include <termios.h>
+
+extern "C" int cfsetospeed(struct termios* tio, speed_t speed)
+{
+	tio->c_ospeed = speed;
+	return 0;
+}

libc/termios/tcdrain.cpp

@@ -0,0 +1,34 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2015.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    termios/tcdrain.cpp
+    Wait for transmission of output.
+
+*******************************************************************************/
+
+#include <sys/syscall.h>
+
+#include <termios.h>
+
+DEFN_SYSCALL1(int, sys_tcdrain, SYSCALL_TCDRAIN, int);
+
+extern "C" int tcdrain(int fd)
+{
+	return sys_tcdrain(fd);
+}

libc/termios/tcflow.cpp

@@ -0,0 +1,34 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2015.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    termios/tcflow.cpp
+    Suspend or restart the transmission or reception of data.
+
+*******************************************************************************/
+
+#include <sys/syscall.h>
+
+#include <termios.h>
+
+DEFN_SYSCALL2(int, sys_tcflow, SYSCALL_TCFLOW, int, int);
+
+extern "C" int tcflow(int fd, int action)
+{
+	return sys_tcflow(fd, action);
+}

libc/termios/tcflush.cpp

@@ -0,0 +1,34 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2015.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    termios/tcflush.cpp
+    Flush non-transmitted output data, non-read input data, or both.
+
+*******************************************************************************/
+
+#include <sys/syscall.h>
+
+#include <termios.h>
+
+DEFN_SYSCALL2(int, sys_tcflush, SYSCALL_TCFLUSH, int, int);
+
+extern "C" int tcflush(int fd, int queue_selector)
+{
+	return sys_tcflush(fd, queue_selector);
+}

libc/termios/tcgetattr.cpp

@@ -0,0 +1,34 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2015.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    termios/tcgetattr.cpp
+    Get the parameters associated with the terminal.
+
+*******************************************************************************/
+
+#include <sys/syscall.h>
+
+#include <termios.h>
+
+DEFN_SYSCALL2(int, sys_tcgetattr, SYSCALL_TCGETATTR, int, struct termios*);
+
+extern "C" int tcgetattr(int fd, struct termios* tio)
+{
+	return sys_tcgetattr(fd, tio);
+}

libc/termios/tcgetsid.cpp

@@ -0,0 +1,34 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2015.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    termios/tcgetsid.cpp
+    Get terminal session id.
+
+*******************************************************************************/
+
+#include <sys/syscall.h>
+
+#include <termios.h>
+
+DEFN_SYSCALL1(int, sys_tcgetsid, SYSCALL_TCGETSID, int);
+
+extern "C" pid_t tcgetsid(int fd)
+{
+	return sys_tcgetsid(fd);
+}

libc/termios/tcsendbreak.cpp

@@ -0,0 +1,34 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2015.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    termios/tcsendbreak.cpp
+    Send a break for a specific duration.
+
+*******************************************************************************/
+
+#include <sys/syscall.h>
+
+#include <termios.h>
+
+DEFN_SYSCALL2(int, sys_tcsendbreak, SYSCALL_TCSENDBREAK, int, int);
+
+extern "C" int tcsendbreak(int fd, int duration)
+{
+	return sys_tcsendbreak(fd, duration);
+}

libc/termios/tcsetattr.cpp

@@ -0,0 +1,34 @@
+/*******************************************************************************
+
+    Copyright(C) Jonas 'Sortie' Termansen 2015.
+
+    This file is part of the Sortix C Library.
+
+    The Sortix C Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    The Sortix C Library is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
+
+    termios/tcsetattr.cpp
+    Set the parameters associated with the terminal.
+
+*******************************************************************************/
+
+#include <sys/syscall.h>
+
+#include <termios.h>
+
+DEFN_SYSCALL3(int, sys_tcsetattr, SYSCALL_TCSETATTR, int, int, const struct termios*);
+
+extern "C" int tcsetattr(int fd, int actions, const struct termios* tio)
+{
+	return sys_tcsetattr(fd, actions, tio);
+}

sh/editline.cpp

@@ -35,13 +35,6 @@
 #include "editline.h"
 #include "showline.h"
 
-static const unsigned int NORMAL_TERMMODE =
-	TERMMODE_UNICODE |
-	TERMMODE_SIGNAL |
-	TERMMODE_UTF8 |
-	TERMMODE_LINEBUFFER |
-	TERMMODE_ECHO;
-
 void edit_line_show(struct edit_line* edit_state)
 {
 	size_t line_length = 0;
@@ -564,7 +557,7 @@ void edit_line_codepoint(struct edit_line* edit_state, wchar_t wc)
 		return;
 	}
 
-	if ( wc == L'\b' )
+	if ( wc == L'\b' || wc == 127 )
 		return;
 	if ( wc == L'\t' )
 		return;
@@ -617,5 +610,5 @@ void edit_line(struct edit_line* edit_state)
 		show_line_finish(&edit_state->show_state);
 	}
 
-	settermmode(edit_state->in_fd, NORMAL_TERMMODE);
+	settermmode(edit_state->in_fd, TERMMODE_NORMAL);
 }

trianglix/trianglix.cpp

@@ -40,6 +40,7 @@
 #include <math.h>
 #include <poll.h>
 #include <pwd.h>
+#include <signal.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -155,7 +156,12 @@ static bool ForkAndWait()
 	{
 		int status;
 		waitpid(child_pid, &status, 0);
+		sigset_t oldset, sigttou;
+		sigemptyset(&sigttou);
+		sigaddset(&sigttou, SIGTTOU);
+		sigprocmask(SIG_BLOCK, &sigttou, &oldset);
 		tcsetpgrp(0, getpgid(0));
+		sigprocmask(SIG_SETMASK, &oldset, NULL);
 		settermmode(0, old_termmode);
 		return false;
 	}
@@ -166,13 +172,18 @@ static bool ForkAndWait()
 	open("/dev/tty", O_WRONLY);
 	open("/dev/tty", O_WRONLY);
 	setpgid(0, 0);
+	sigset_t oldset, sigttou;
+	sigemptyset(&sigttou);
+	sigaddset(&sigttou, SIGTTOU);
+	sigprocmask(SIG_BLOCK, &sigttou, &oldset);
 	tcsetpgrp(0, getpgid(0));
+	sigprocmask(SIG_SETMASK, &oldset, NULL);
 #if 1 /* Magic to somehow fix a weird keyboard-related bug nortti has. */
-	settermmode(0, TERMMODE_UNICODE | TERMMODE_SIGNAL | TERMMODE_UTF8 | TERMMODE_LINEBUFFER | TERMMODE_ECHO | TERMMODE_NONBLOCK);
+	settermmode(0, TERMMODE_NORMAL | TERMMODE_NONBLOCK);
 	char c;
 	while ( 0 <= read(0, &c, sizeof(c)) );
 #endif
-	settermmode(0, TERMMODE_UNICODE | TERMMODE_SIGNAL | TERMMODE_UTF8 | TERMMODE_LINEBUFFER | TERMMODE_ECHO);
+	settermmode(0, TERMMODE_NORMAL);
 	printf("\e[m\e[2J\e[H");
 	fflush(stdout);
 	fsync(0);
@@ -1719,7 +1730,7 @@ void HandleCodepoint(uint32_t codepoint, struct Desktop* desktop)
 	size_t column = 0;
 	while ( desktop->command[column] )
 		column++;
-	if ( c == '\b' )
+	if ( c == '\b' || c == 127 )
 	{
 		if ( column )
 			desktop->command[column-1] = '\0';
@@ -1918,9 +1929,6 @@ static int CreateKeyboardConnection()
 
 int main(int argc, char* argv[])
 {
-	setpgid(0, 0);
-	tcsetpgrp(0, getpgid(0));
-
 	struct stat st;
 	if ( stat("/etc/rune-enable", &st) == 0 )
 		use_runes = true, configured_use_runes = true;