static void
drain_console(int fd, void *closure)
{
errno = 0;
if (tcflush(fd, TCIOFLUSH) == -1 && errno == EIO) {
xf86SetConsoleHandler(NULL, NULL);
}
}
void
xf86CloseConsole(void)
{
struct vt_mode VT;
int ret;
if (xf86Info.ShareVTs) {
close(xf86Info.consoleFd);
return;
}
/*
* unregister the drain_console handler
* - what to do if someone else changed it in the meantime?
*/
xf86SetConsoleHandler(NULL, NULL);
/* Back to text mode ... */
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSETMODE, KD_TEXT));
if (ret < 0)
xf86Msg(X_WARNING, "xf86CloseConsole: KDSETMODE failed: %s\n",
strerror(errno));
SYSCALL(ioctl(xf86Info.consoleFd, KDSKBMUTE, 0));
SYSCALL(ioctl(xf86Info.consoleFd, KDSKBMODE, tty_mode));
tcsetattr(xf86Info.consoleFd, TCSANOW, &tty_attr);
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_GETMODE, &VT));
if (ret < 0)
xf86Msg(X_WARNING, "xf86CloseConsole: VT_GETMODE failed: %s\n",
strerror(errno));
else {
/* set dflt vt handling */
VT.mode = VT_AUTO;
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_SETMODE, &VT));
if (ret < 0)
xf86Msg(X_WARNING, "xf86CloseConsole: VT_SETMODE failed: %s\n",
strerror(errno));
}
if (xf86Info.autoVTSwitch) {
/*
* Perform a switch back to the active VT when we were started
*/
if (activeVT >= 0) {
switch_to(activeVT, "xf86CloseConsole");
activeVT = -1;
}
}
close(xf86Info.consoleFd); /* make the vt-manager happy */
}
void
xf86OpenConsole(void)
{
int i, fd = -1, ret, current_vt = -1;
struct vt_mode VT;
struct vt_stat vts;
struct stat st;
MessageType from = X_PROBED;
const char *tty0[] = { "/dev/tty0", "/dev/vc/0", NULL };
const char *vcs[] = { "/dev/vc/%d", "/dev/tty%d", NULL };
if (serverGeneration == 1) {
/*
* setup the virtual terminal manager
*/
if (xf86Info.vtno != -1) {
from = X_CMDLINE;
}
else {
i = 0;
while (tty0[i] != NULL) {
if ((fd = open(tty0[i], O_WRONLY, 0)) >= 0)
break;
i++;
}
if (fd < 0)
FatalError("xf86OpenConsole: Cannot open /dev/tty0 (%s)\n",
strerror(errno));
if (xf86Info.ShareVTs) {
SYSCALL(ret = ioctl(fd, VT_GETSTATE, &vts));
if (ret < 0)
FatalError("xf86OpenConsole: Cannot find the current"
" VT (%s)\n", strerror(errno));
xf86Info.vtno = vts.v_active;
}
else {
SYSCALL(ret = ioctl(fd, VT_OPENQRY, &xf86Info.vtno));
if (ret < 0)
FatalError("xf86OpenConsole: Cannot find a free VT: "
"%s\n", strerror(errno));
if (xf86Info.vtno == -1)
FatalError("xf86OpenConsole: Cannot find a free VT\n");
}
close(fd);
}
xf86Msg(from, "using VT number %d\n\n", xf86Info.vtno);
/* Some of stdin / stdout / stderr maybe redirected to a file */
for (i = STDIN_FILENO; i <= STDERR_FILENO; i++) {
ret = fstat(i, &st);
if (ret == 0 && S_ISCHR(st.st_mode) && major(st.st_rdev) == 4) {
current_vt = minor(st.st_rdev);
break;
}
}
if (!KeepTty && current_vt == xf86Info.vtno) {
xf86Msg(X_PROBED,
"controlling tty is VT number %d, auto-enabling KeepTty\n",
current_vt);
KeepTty = TRUE;
}
if (!KeepTty) {
pid_t ppid = getppid();
pid_t ppgid;
ppgid = getpgid(ppid);
/*
* change to parent process group that pgid != pid so
* that setsid() doesn't fail and we become process
* group leader
*/
if (setpgid(0, ppgid) < 0)
xf86Msg(X_WARNING, "xf86OpenConsole: setpgid failed: %s\n",
strerror(errno));
/* become process group leader */
if ((setsid() < 0))
xf86Msg(X_WARNING, "xf86OpenConsole: setsid failed: %s\n",
strerror(errno));
}
i = 0;
while (vcs[i] != NULL) {
#pragma GCC diagnostic ignored "-Wformat-nonliteral"
snprintf(vtname, sizeof(vtname), vcs[i], xf86Info.vtno); /* /dev/tty1-64 */
if ((xf86Info.consoleFd = open(vtname, O_RDWR | O_NDELAY, 0)) >= 0)
break;
i++;
}
if (xf86Info.consoleFd < 0)
FatalError("xf86OpenConsole: Cannot open virtual console"
" %d (%s)\n", xf86Info.vtno, strerror(errno));
/*
* Linux doesn't switch to an active vt after the last close of a vt,
* so we do this ourselves by remembering which is active now.
*/
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_GETSTATE, &vts));
if (ret < 0)
xf86Msg(X_WARNING, "xf86OpenConsole: VT_GETSTATE failed: %s\n",
strerror(errno));
else
activeVT = vts.v_active;
#if 0
if (!KeepTty) {
/*
* Detach from the controlling tty to avoid char loss
*/
if ((i = open("/dev/tty", O_RDWR)) >= 0) {
SYSCALL(ioctl(i, TIOCNOTTY, 0));
close(i);
}
}
#endif
if (!xf86Info.ShareVTs) {
struct termios nTty;
/*
* now get the VT. This _must_ succeed, or else fail completely.
*/
switch_to(xf86Info.vtno, "xf86OpenConsole");
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_GETMODE, &VT));
if (ret < 0)
FatalError("xf86OpenConsole: VT_GETMODE failed %s\n",
strerror(errno));
signal(SIGUSR1, xf86VTRequest);
VT.mode = VT_PROCESS;
VT.relsig = SIGUSR1;
VT.acqsig = SIGUSR1;
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_SETMODE, &VT));
if (ret < 0)
FatalError
("xf86OpenConsole: VT_SETMODE VT_PROCESS failed: %s\n",
strerror(errno));
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS));
if (ret < 0)
FatalError("xf86OpenConsole: KDSETMODE KD_GRAPHICS failed %s\n",
strerror(errno));
tcgetattr(xf86Info.consoleFd, &tty_attr);
SYSCALL(ioctl(xf86Info.consoleFd, KDGKBMODE, &tty_mode));
/* disable kernel special keys and buffering, new style */
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSKBMUTE, 1));
if (ret < 0)
{
/* disable kernel special keys and buffering, old style */
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSKBMODE, K_OFF));
if (ret < 0)
{
/* fine, just disable special keys */
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSKBMODE, K_RAW));
if (ret < 0)
FatalError("xf86OpenConsole: KDSKBMODE K_RAW failed %s\n",
strerror(errno));
/* ... and drain events, else the kernel gets angry */
xf86SetConsoleHandler(drain_console, NULL);
}
}
nTty = tty_attr;
nTty.c_iflag = (IGNPAR | IGNBRK) & (~PARMRK) & (~ISTRIP);
nTty.c_oflag = 0;
nTty.c_cflag = CREAD | CS8;
nTty.c_lflag = 0;
nTty.c_cc[VTIME] = 0;
nTty.c_cc[VMIN] = 1;
cfsetispeed(&nTty, 9600);
cfsetospeed(&nTty, 9600);
tcsetattr(xf86Info.consoleFd, TCSANOW, &nTty);
}
}
else { /* serverGeneration != 1 */
if (!xf86Info.ShareVTs && xf86Info.autoVTSwitch) {
/* now get the VT */
switch_to(xf86Info.vtno, "xf86OpenConsole");
}
}
}
void
xf86OpenConsole(void)
{
int i, ret;
struct vt_stat vts;
struct vt_mode VT;
const char *vcs[] = { "/dev/vc/%d", "/dev/tty%d", NULL };
if (serverGeneration == 1) {
linux_parse_vt_settings(FALSE);
if (!KeepTty) {
pid_t ppid = getppid();
pid_t ppgid;
ppgid = getpgid(ppid);
/*
* change to parent process group that pgid != pid so
* that setsid() doesn't fail and we become process
* group leader
*/
if (setpgid(0, ppgid) < 0)
xf86Msg(X_WARNING, "xf86OpenConsole: setpgid failed: %s\n",
strerror(errno));
/* become process group leader */
if ((setsid() < 0))
xf86Msg(X_WARNING, "xf86OpenConsole: setsid failed: %s\n",
strerror(errno));
}
i = 0;
while (vcs[i] != NULL) {
snprintf(vtname, sizeof(vtname), vcs[i], xf86Info.vtno); /* /dev/tty1-64 */
if ((xf86Info.consoleFd = open(vtname, O_RDWR | O_NDELAY, 0)) >= 0)
break;
i++;
}
if (xf86Info.consoleFd < 0)
FatalError("xf86OpenConsole: Cannot open virtual console"
" %d (%s)\n", xf86Info.vtno, strerror(errno));
/*
* Linux doesn't switch to an active vt after the last close of a vt,
* so we do this ourselves by remembering which is active now.
*/
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_GETSTATE, &vts));
if (ret < 0)
xf86Msg(X_WARNING, "xf86OpenConsole: VT_GETSTATE failed: %s\n",
strerror(errno));
else
activeVT = vts.v_active;
if (!xf86Info.ShareVTs) {
struct termios nTty;
/*
* now get the VT. This _must_ succeed, or else fail completely.
*/
switch_to(xf86Info.vtno, "xf86OpenConsole");
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_GETMODE, &VT));
if (ret < 0)
FatalError("xf86OpenConsole: VT_GETMODE failed %s\n",
strerror(errno));
signal(SIGUSR1, xf86VTRequest);
VT.mode = VT_PROCESS;
VT.relsig = SIGUSR1;
VT.acqsig = SIGUSR1;
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_SETMODE, &VT));
if (ret < 0)
FatalError
("xf86OpenConsole: VT_SETMODE VT_PROCESS failed: %s\n",
strerror(errno));
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS));
if (ret < 0)
FatalError("xf86OpenConsole: KDSETMODE KD_GRAPHICS failed %s\n",
strerror(errno));
tcgetattr(xf86Info.consoleFd, &tty_attr);
SYSCALL(ioctl(xf86Info.consoleFd, KDGKBMODE, &tty_mode));
/* disable kernel special keys and buffering, new style */
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSKBMUTE, 1));
if (ret < 0)
{
/* disable kernel special keys and buffering, old style */
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSKBMODE, K_OFF));
if (ret < 0)
{
/* fine, just disable special keys */
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSKBMODE, K_RAW));
if (ret < 0)
FatalError("xf86OpenConsole: KDSKBMODE K_RAW failed %s\n",
strerror(errno));
/* ... and drain events, else the kernel gets angry */
xf86SetConsoleHandler(drain_console, NULL);
}
}
nTty = tty_attr;
nTty.c_iflag = (IGNPAR | IGNBRK) & (~PARMRK) & (~ISTRIP);
nTty.c_oflag = 0;
nTty.c_cflag = CREAD | CS8;
nTty.c_lflag = 0;
nTty.c_cc[VTIME] = 0;
nTty.c_cc[VMIN] = 1;
cfsetispeed(&nTty, 9600);
cfsetospeed(&nTty, 9600);
tcsetattr(xf86Info.consoleFd, TCSANOW, &nTty);
}
}
else { /* serverGeneration != 1 */
if (!xf86Info.ShareVTs && xf86Info.autoVTSwitch) {
/* now get the VT */
switch_to(xf86Info.vtno, "xf86OpenConsole");
}
}
}
void
xf86OpenConsole(void)
{
int i, fd = -1, ret;
struct vt_mode VT;
struct vt_stat vts;
MessageType from = X_PROBED;
char *tty0[] = { "/dev/tty0", "/dev/vc/0", NULL };
char *vcs[] = { "/dev/vc/%d", "/dev/tty%d", NULL };
if (serverGeneration == 1) {
/* when KeepTty check if we're run with euid==0 */
if (KeepTty && geteuid() != 0)
FatalError("xf86OpenConsole:"
" Server must be suid root for option \"KeepTTY\"\n");
/*
* setup the virtual terminal manager
*/
if (xf86Info.vtno != -1) {
from = X_CMDLINE;
}
else {
i = 0;
while (tty0[i] != NULL) {
if ((fd = open(tty0[i], O_WRONLY, 0)) >= 0)
break;
i++;
}
if (fd < 0)
FatalError("xf86OpenConsole: Cannot open /dev/tty0 (%s)\n",
strerror(errno));
if (xf86Info.ShareVTs) {
SYSCALL(ret = ioctl(fd, VT_GETSTATE, &vts));
if (ret < 0)
FatalError("xf86OpenConsole: Cannot find the current"
" VT (%s)\n", strerror(errno));
xf86Info.vtno = vts.v_active;
}
else {
SYSCALL(ret = ioctl(fd, VT_OPENQRY, &xf86Info.vtno));
if (ret < 0)
FatalError("xf86OpenConsole: Cannot find a free VT: "
"%s\n", strerror(errno));
if (xf86Info.vtno == -1)
FatalError("xf86OpenConsole: Cannot find a free VT\n");
}
close(fd);
}
xf86Msg(from, "using VT number %d\n\n", xf86Info.vtno);
if (!KeepTty) {
pid_t ppid = getppid();
pid_t ppgid;
ppgid = getpgid(ppid);
/*
* change to parent process group that pgid != pid so
* that setsid() doesn't fail and we become process
* group leader
*/
if (setpgid(0, ppgid) < 0)
xf86Msg(X_WARNING, "xf86OpenConsole: setpgid failed: %s\n",
strerror(errno));
/* become process group leader */
if ((setsid() < 0))
xf86Msg(X_WARNING, "xf86OpenConsole: setsid failed: %s\n",
strerror(errno));
}
i = 0;
while (vcs[i] != NULL) {
snprintf(vtname, sizeof(vtname), vcs[i], xf86Info.vtno); /* /dev/tty1-64 */
if ((xf86Info.consoleFd = open(vtname, O_RDWR | O_NDELAY, 0)) >= 0)
break;
i++;
}
if (xf86Info.consoleFd < 0)
FatalError("xf86OpenConsole: Cannot open virtual console"
" %d (%s)\n", xf86Info.vtno, strerror(errno));
/*
* Linux doesn't switch to an active vt after the last close of a vt,
* so we do this ourselves by remembering which is active now.
*/
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_GETSTATE, &vts));
if (ret < 0)
xf86Msg(X_WARNING, "xf86OpenConsole: VT_GETSTATE failed: %s\n",
strerror(errno));
else
activeVT = vts.v_active;
#if 0
if (!KeepTty) {
/*
* Detach from the controlling tty to avoid char loss
*/
if ((i = open("/dev/tty", O_RDWR)) >= 0) {
SYSCALL(ioctl(i, TIOCNOTTY, 0));
close(i);
}
}
#endif
if (!xf86Info.ShareVTs) {
struct termios nTty;
/*
* now get the VT. This _must_ succeed, or else fail completely.
*/
switch_to(xf86Info.vtno, "xf86OpenConsole");
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_GETMODE, &VT));
if (ret < 0)
FatalError("xf86OpenConsole: VT_GETMODE failed %s\n",
strerror(errno));
signal(SIGUSR1, xf86VTRequest);
VT.mode = VT_PROCESS;
VT.relsig = SIGUSR1;
VT.acqsig = SIGUSR1;
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_SETMODE, &VT));
if (ret < 0)
FatalError
("xf86OpenConsole: VT_SETMODE VT_PROCESS failed: %s\n",
strerror(errno));
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS));
if (ret < 0)
FatalError("xf86OpenConsole: KDSETMODE KD_GRAPHICS failed %s\n",
strerror(errno));
tcgetattr(xf86Info.consoleFd, &tty_attr);
SYSCALL(ioctl(xf86Info.consoleFd, KDGKBMODE, &tty_mode));
#ifdef K_OFF
/* disable kernel special keys and buffering */
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSKBMODE, K_OFF));
if (ret < 0)
#endif
{
SYSCALL(ret = ioctl(xf86Info.consoleFd, KDSKBMODE, K_RAW));
if (ret < 0)
FatalError("xf86OpenConsole: KDSKBMODE K_RAW failed %s\n",
strerror(errno));
/* need to keep the buffer clean, else the kernel gets angry */
xf86SetConsoleHandler(drain_console, NULL);
}
nTty = tty_attr;
nTty.c_iflag = (IGNPAR | IGNBRK) & (~PARMRK) & (~ISTRIP);
nTty.c_oflag = 0;
nTty.c_cflag = CREAD | CS8;
nTty.c_lflag = 0;
nTty.c_cc[VTIME] = 0;
nTty.c_cc[VMIN] = 1;
cfsetispeed(&nTty, 9600);
cfsetospeed(&nTty, 9600);
tcsetattr(xf86Info.consoleFd, TCSANOW, &nTty);
}
}
else { /* serverGeneration != 1 */
if (!xf86Info.ShareVTs && xf86Info.autoVTSwitch) {
/* now get the VT */
switch_to(xf86Info.vtno, "xf86OpenConsole");
}
}
}
