gint
ide_vte_pty_create_slave (VtePty *pty)
{
gint master_fd;
#ifdef HAVE_PTSNAME_R
char name[PATH_MAX + 1];
#else
const char *name;
#endif
g_assert (VTE_IS_PTY (pty));
if (-1 == (master_fd = vte_pty_get_fd (pty)))
return -1;
if (grantpt (master_fd) != 0)
return -1;
if (unlockpt (master_fd) != 0)
return -1;
#ifdef HAVE_PTSNAME_R
if (ptsname_r (master_fd, name, sizeof name - 1) != 0)
return -1;
name[sizeof name - 1] = '\0';
#else
if (NULL == (name = ptsname (master_fd)))
return -1;
#endif
return open (name, O_RDWR | O_CLOEXEC);
}
/**
* vte_pty_get_fd:
* @pty: a #VtePty
*
* Returns: (transfer none): the file descriptor of the PTY master in @pty. The
* file descriptor belongs to @pty and must not be closed
*/
int
vte_pty_get_fd (VtePty *pty)
{
VtePtyPrivate *priv;
g_return_val_if_fail(VTE_IS_PTY(pty), -1);
priv = pty->priv;
g_return_val_if_fail(priv->pty_fd != -1, -1);
return priv->pty_fd;
}
void
ide_terminal_page_set_pty (IdeTerminalPage *self,
VtePty *pty)
{
g_return_if_fail (IDE_IS_TERMINAL_PAGE (self));
g_return_if_fail (VTE_IS_PTY (pty));
if (g_set_object (&self->pty, pty))
{
vte_terminal_reset (VTE_TERMINAL (self->terminal_top), TRUE, TRUE);
vte_terminal_set_pty (VTE_TERMINAL (self->terminal_top), pty);
}
}
/**
* vte_pty_get_size:
* @pty: a #VtePty
* @rows: (out) (allow-none): a location to store the number of rows, or %NULL
* @columns: (out) (allow-none): a location to store the number of columns, or %NULL
* @error: return location to store a #GError, or %NULL
*
* Reads the pseudo terminal's window size.
*
* If getting the window size failed, @error will be set to a #GIOError.
*
* Returns: %TRUE on success, %FALSE on failure with @error filled in
*/
gboolean
vte_pty_get_size(VtePty *pty,
int *rows,
int *columns,
GError **error)
{
struct winsize size;
int master;
int ret;
g_return_val_if_fail(VTE_IS_PTY(pty), FALSE);
master = vte_pty_get_fd(pty);
memset(&size, 0, sizeof(size));
ret = ioctl(master, TIOCGWINSZ, &size);
if (ret == 0) {
if (columns != NULL) {
*columns = size.ws_col;
}
if (rows != NULL) {
*rows = size.ws_row;
}
_vte_debug_print(VTE_DEBUG_PTY,
"Size on fd %d is (%d,%d).\n",
master, size.ws_col, size.ws_row);
return TRUE;
} else {
int errsv = errno;
g_set_error(error, G_IO_ERROR,
g_io_error_from_errno(errsv),
"Failed to get window size: %s",
g_strerror(errsv));
_vte_debug_print(VTE_DEBUG_PTY,
"Failed to read size from fd %d: %s\n",
master, g_strerror(errsv));
errno = errsv;
return FALSE;
}
}
void
gb_terminal_view_set_pty (GbTerminalView *self,
VtePty *pty)
{
g_return_if_fail (GB_IS_TERMINAL_VIEW (self));
g_return_if_fail (VTE_IS_PTY (pty));
if (self->manage_spawn)
{
g_warning ("Cannot set pty when GbTerminalView manages tty");
return;
}
if (self->terminal_top)
{
vte_terminal_reset (self->terminal_top, TRUE, TRUE);
vte_terminal_set_pty (self->terminal_top, pty);
}
}
/**
* vte_pty_set_utf8:
* @pty: a #VtePty
* @utf8: whether or not the pty is in UTF-8 mode
* @error: (allow-none): return location to store a #GError, or %NULL
*
* Tells the kernel whether the terminal is UTF-8 or not, in case it can make
* use of the info. Linux 2.6.5 or so defines IUTF8 to make the line
* discipline do multibyte backspace correctly.
*
* Returns: %TRUE on success, %FALSE on failure with @error filled in
*/
gboolean
vte_pty_set_utf8(VtePty *pty,
gboolean utf8,
GError **error)
{
#if defined(HAVE_TCSETATTR) && defined(IUTF8)
VtePtyPrivate *priv;
struct termios tio;
tcflag_t saved_cflag;
g_return_val_if_fail(VTE_IS_PTY(pty), FALSE);
priv = pty->priv;
g_return_val_if_fail (priv->pty_fd > 0, FALSE);
if (tcgetattr(priv->pty_fd, &tio) == -1) {
int errsv = errno;
g_set_error(error, G_IO_ERROR, g_io_error_from_errno(errsv),
"%s failed: %s", "tcgetattr", g_strerror(errsv));
errno = errsv;
return FALSE;
}
saved_cflag = tio.c_iflag;
if (utf8) {
tio.c_iflag |= IUTF8;
} else {
tio.c_iflag &= ~IUTF8;
}
/* Only set the flag if it changes */
if (saved_cflag != tio.c_iflag &&
tcsetattr(priv->pty_fd, TCSANOW, &tio) == -1) {
int errsv = errno;
g_set_error(error, G_IO_ERROR, g_io_error_from_errno(errsv),
"%s failed: %s", "tcgetattr", g_strerror(errsv));
errno = errsv;
return FALSE;
}
#endif
return TRUE;
}
/**
* vte_pty_set_size:
* @pty: a #VtePty
* @rows: the desired number of rows
* @columns: the desired number of columns
* @error: (allow-none): return location to store a #GError, or %NULL
*
* Attempts to resize the pseudo terminal's window size. If successful, the
* OS kernel will send #SIGWINCH to the child process group.
*
* If setting the window size failed, @error will be set to a #GIOError.
*
* Returns: %TRUE on success, %FALSE on failure with @error filled in
*/
gboolean
vte_pty_set_size(VtePty *pty,
int rows,
int columns,
GError **error)
{
struct winsize size;
int master;
int ret;
g_return_val_if_fail(VTE_IS_PTY(pty), FALSE);
master = vte_pty_get_fd(pty);
memset(&size, 0, sizeof(size));
size.ws_row = rows > 0 ? rows : 24;
size.ws_col = columns > 0 ? columns : 80;
_vte_debug_print(VTE_DEBUG_PTY,
"Setting size on fd %d to (%d,%d).\n",
master, columns, rows);
ret = ioctl(master, TIOCSWINSZ, &size);
if (ret != 0) {
int errsv = errno;
g_set_error(error, G_IO_ERROR,
g_io_error_from_errno(errsv),
"Failed to set window size: %s",
g_strerror(errsv));
_vte_debug_print(VTE_DEBUG_PTY,
"Failed to set size on %d: %s.\n",
master, g_strerror(errsv));
errno = errsv;
return FALSE;
}
return TRUE;
}
