/****************************************************************************
- * Copyright (c) 2016 Free Software Foundation, Inc. *
+ * Copyright (c) 2016,2017 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
****************************************************************************/
#include <reset_cmd.h>
+#include <tty_settings.h>
#include <errno.h>
#include <stdio.h>
#include <sys/ptem.h>
#endif
-MODULE_ID("$Id: reset_cmd.c,v 1.6 2016/08/20 23:53:44 tom Exp $")
+MODULE_ID("$Id: reset_cmd.c,v 1.13 2017/10/07 20:56:03 tom Exp $")
/*
* SCO defines TIOCGSIZE and the corresponding struct. Other systems (SunOS,
# endif
#endif
-static int my_fd;
static FILE *my_file;
-static TTY original_settings;
-static bool can_restore = FALSE;
static bool use_reset = FALSE; /* invoked as reset */
static bool use_init = FALSE; /* invoked as init */
static void
-exit_error(void)
+failed(const char *msg)
{
+ int code = errno;
+
+ (void) fprintf(stderr, "%s: %s: %s\n", _nc_progname, msg, strerror(code));
restore_tty_settings();
(void) fprintf(my_file, "\n");
fflush(my_file);
- ExitProgram(EXIT_FAILURE);
- /* NOTREACHED */
-}
-
-static void
-failed(const char *msg)
-{
- char temp[BUFSIZ];
-
- _nc_STRCPY(temp, _nc_progname, sizeof(temp));
- _nc_STRCAT(temp, ": ", sizeof(temp));
- perror(strncat(temp, msg, sizeof(temp) - strlen(temp) - 2));
- exit_error();
+ ExitProgram(ErrSystem(code));
/* NOTREACHED */
}
-static bool
-get_tty_settings(int fd, TTY * tty_settings)
-{
- bool success = TRUE;
- my_fd = fd;
- if (fd < 0 || GET_TTY(my_fd, tty_settings) < 0) {
- success = FALSE;
- }
- return success;
-}
-
static bool
cat_file(char *file)
{
* a child program dies in raw mode.
*/
void
-reset_tty_settings(TTY * tty_settings)
+reset_tty_settings(int fd, TTY * tty_settings)
{
-#ifdef TERMIOS
- tcgetattr(my_fd, tty_settings);
-#else
- stty(my_fd, tty_settings);
-#endif
+ GET_TTY(fd, tty_settings);
#ifdef TERMIOS
#if defined(VDISCARD) && defined(CDISCARD)
);
#endif
- SET_TTY(my_fd, tty_settings);
+ SET_TTY(fd, tty_settings);
}
/*
/* Output startup string. */
bool
-send_init_strings(TTY * old_settings)
+send_init_strings(int fd GCC_UNUSED, TTY * old_settings)
{
int i;
bool need_flush = FALSE;
if (old_settings != 0 &&
old_settings->c_oflag & (TAB3 | ONLCR | OCRNL | ONLRET)) {
old_settings->c_oflag &= (TAB3 | ONLCR | OCRNL | ONLRET);
- SET_TTY(my_fd, old_settings);
+ SET_TTY(fd, old_settings);
}
#endif
if (use_reset || use_init) {
? reset_2string
: init_2string);
+#if defined(set_lr_margin)
if (set_lr_margin != 0) {
need_flush |= sent_string(TPARM_2(set_lr_margin, 0,
columns - 1));
- } else if (set_left_margin_parm != 0
- && set_right_margin_parm != 0) {
+ } else
+#endif
+#if defined(set_left_margin_parm) && defined(set_right_margin_parm)
+ if (set_left_margin_parm != 0
+ && set_right_margin_parm != 0) {
need_flush |= sent_string(TPARM_1(set_left_margin_parm, 0));
need_flush |= sent_string(TPARM_1(set_right_margin_parm,
columns - 1));
- } else if (clear_margins != 0
- && set_left_margin != 0
- && set_right_margin != 0) {
+ } else
+#endif
+ if (clear_margins != 0
+ && set_left_margin != 0
+ && set_right_margin != 0) {
need_flush |= sent_string(clear_margins);
if (carriage_return != 0) {
need_flush |= sent_string(carriage_return);
show_tty_change(old_settings, new_settings, "Interrupt", VINTR, CINTR);
}
+#if HAVE_SIZECHANGE
/*
- * Open a file descriptor on the current terminal, to obtain its settings.
- * stderr is less likely to be redirected than stdout; try that first.
+ * Set window size if not set already, but update our copy of the values if the
+ * size was set.
*/
-int
-save_tty_settings(TTY * tty_settings)
-{
- if (!get_tty_settings(STDERR_FILENO, tty_settings) &&
- !get_tty_settings(STDOUT_FILENO, tty_settings) &&
- !get_tty_settings(STDIN_FILENO, tty_settings) &&
- !get_tty_settings(open("/dev/tty", O_RDWR), tty_settings)) {
- failed("terminal attributes");
- }
- can_restore = TRUE;
- original_settings = *tty_settings;
- return my_fd;
-}
-
void
-restore_tty_settings(void)
-{
- if (can_restore)
- SET_TTY(my_fd, &original_settings);
-}
-
-/* Set the modes if they've changed. */
-void
-update_tty_settings(TTY * old_settings, TTY * new_settings)
-{
- if (memcmp(new_settings, old_settings, sizeof(TTY))) {
- SET_TTY(my_fd, new_settings);
- }
-}
-
-#if HAVE_SIZECHANGE
-/* Set window size if not set already */
-void
-set_window_size(int fd, int high, int wide)
+set_window_size(int fd, short *high, short *wide)
{
STRUCT_WINSIZE win;
(void) ioctl(fd, IOCTL_GET_WINSIZE, &win);
if (WINSIZE_ROWS(win) == 0 &&
- WINSIZE_COLS(win) == 0 &&
- high > 0 && wide > 0) {
- WINSIZE_ROWS(win) = (unsigned short) high;
- WINSIZE_COLS(win) = (unsigned short) wide;
- (void) ioctl(fd, IOCTL_SET_WINSIZE, &win);
+ WINSIZE_COLS(win) == 0) {
+ if (*high > 0 && *wide > 0) {
+ WINSIZE_ROWS(win) = (unsigned short) *high;
+ WINSIZE_COLS(win) = (unsigned short) *wide;
+ (void) ioctl(fd, IOCTL_SET_WINSIZE, &win);
+ }
+ } else if (WINSIZE_ROWS(win) > 0 &&
+ WINSIZE_COLS(win) > 0) {
+ *high = (short) WINSIZE_ROWS(win);
+ *wide = (short) WINSIZE_COLS(win);
}
}
#endif
projects / ncurses.git / blobdiff