+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
int reset_terminal_fd(int fd, bool switch_to_text) {
struct termios termios;
- _cleanup_free_ char *utf8 = NULL;
- int kb;
int r = 0;
/* Set terminal to some sane defaults */
(void) ioctl(fd, KDSETMODE, KD_TEXT);
/* Set default keyboard mode */
- if (read_one_line_file("/sys/module/vt/parameters/default_utf8", &utf8) >= 0 && parse_boolean(utf8) == 0)
- kb = K_XLATE;
- else
- kb = K_UNICODE;
- (void) ioctl(fd, KDSKBMODE, kb);
+ (void) vt_reset_keyboard(fd);
if (tcgetattr(fd, &termios) < 0) {
r = -errno;
l = read(notify, &buffer, sizeof(buffer));
if (l < 0) {
- if (errno == EINTR || errno == EAGAIN)
+ if (IN_SET(errno, EINTR, EAGAIN))
continue;
r = -errno;
return enabled;
}
+
+bool underline_enabled(void) {
+ static int enabled = -1;
+
+ if (enabled < 0) {
+
+ /* The Linux console doesn't support underlining, turn it off, but only there. */
+
+ if (!colors_enabled())
+ enabled = false;
+ else
+ enabled = !streq_ptr(getenv("TERM"), "linux");
+ }
+
+ return enabled;
+}
+
+int vt_default_utf8(void) {
+ _cleanup_free_ char *b = NULL;
+ int r;
+
+ /* Read the default VT UTF8 setting from the kernel */
+
+ r = read_one_line_file("/sys/module/vt/parameters/default_utf8", &b);
+ if (r < 0)
+ return r;
+
+ return parse_boolean(b);
+}
+
+int vt_reset_keyboard(int fd) {
+ int kb;
+
+ /* If we can't read the default, then default to unicode. It's 2017 after all. */
+ kb = vt_default_utf8() != 0 ? K_UNICODE : K_XLATE;
+
+ if (ioctl(fd, KDSKBMODE, kb) < 0)
+ return -errno;
+
+ return 0;
+}