int chvt(int vt) {
_cleanup_close_ int fd;
- fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);
+ fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
if (fd < 0)
return -errno;
- if (vt < 0) {
+ if (vt <= 0) {
int tiocl[2] = {
TIOCL_GETKMSGREDIRECT,
0
bool need_nl = true;
if (on_tty())
- fputs(ANSI_HIGHLIGHT_ON, stdout);
+ fputs(ANSI_HIGHLIGHT, stdout);
va_start(ap, text);
vprintf(text, ap);
va_end(ap);
if (on_tty())
- fputs(ANSI_HIGHLIGHT_OFF, stdout);
+ fputs(ANSI_NORMAL, stdout);
fflush(stdout);
va_list ap;
if (on_tty())
- fputs(ANSI_HIGHLIGHT_ON, stdout);
+ fputs(ANSI_HIGHLIGHT, stdout);
va_start(ap, text);
vprintf(text, ap);
va_end(ap);
if (on_tty())
- fputs(ANSI_HIGHLIGHT_OFF, stdout);
+ fputs(ANSI_NORMAL, stdout);
fflush(stdout);
* interfere with that. */
/* Disable exclusive mode, just in case */
- ioctl(fd, TIOCNXCL);
+ (void) ioctl(fd, TIOCNXCL);
/* Switch to text mode */
if (switch_to_text)
- ioctl(fd, KDSETMODE, KD_TEXT);
+ (void) ioctl(fd, KDSETMODE, KD_TEXT);
/* Enable console unicode mode */
- ioctl(fd, KDSKBMODE, K_UNICODE);
+ (void) ioctl(fd, KDSKBMODE, K_UNICODE);
if (tcgetattr(fd, &termios) < 0) {
r = -errno;
finish:
/* Just in case, flush all crap out */
- tcflush(fd, TCIOFLUSH);
+ (void) tcflush(fd, TCIOFLUSH);
return r;
}
int reset_terminal(const char *name) {
_cleanup_close_ int fd = -1;
- fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC);
+ /* We open the terminal with O_NONBLOCK here, to ensure we
+ * don't block on carrier if this is a terminal with carrier
+ * configured. */
+
+ fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
if (fd < 0)
return fd;
* https://bugs.launchpad.net/ubuntu/+source/linux/+bug/554172/comments/245
*/
- assert(!(mode & O_CREAT));
+ if (mode & O_CREAT)
+ return -EINVAL;
for (;;) {
fd = open(name, mode, 0);
if (r < 0 && r == -EPERM && ignore_tiocstty_eperm)
r = 0;
- if (r < 0 && (force || fail || r != -EPERM)) {
+ if (r < 0 && (force || fail || r != -EPERM))
goto fail;
- }
if (r >= 0)
break;
struct sigaction sa_old;
int r = 0;
- fd = open("/dev/tty", O_RDWR|O_NOCTTY|O_NDELAY|O_CLOEXEC);
+ fd = open("/dev/tty", O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
if (fd < 0)
return -errno;
int terminal_vhangup(const char *name) {
_cleanup_close_ int fd;
- fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC);
+ fd = open_terminal(name, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
if (fd < 0)
return fd;
}
int vt_disallocate(const char *name) {
- int fd, r;
+ _cleanup_close_ int fd = -1;
unsigned u;
+ int r;
/* Deallocate the VT if possible. If not possible
* (i.e. because it is the active one), at least clear it
"\033[H" /* move home */
"\033[2J", /* clear screen */
10, false);
- safe_close(fd);
-
return 0;
}
return -EINVAL;
/* Try to deallocate */
- fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);
+ fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
if (fd < 0)
return fd;
r = ioctl(fd, VT_DISALLOCATE, u);
- safe_close(fd);
+ fd = safe_close(fd);
if (r >= 0)
return 0;
"\033[H" /* move home */
"\033[3J", /* clear screen including scrollback, requires Linux 2.6.40 */
10, false);
- safe_close(fd);
-
return 0;
}
-void warn_melody(void) {
- _cleanup_close_ int fd = -1;
-
- fd = open("/dev/console", O_WRONLY|O_CLOEXEC|O_NOCTTY);
- if (fd < 0)
- return;
-
- /* Yeah, this is synchronous. Kinda sucks. But well... */
-
- ioctl(fd, KIOCSOUND, (int)(1193180/440));
- usleep(125*USEC_PER_MSEC);
-
- ioctl(fd, KIOCSOUND, (int)(1193180/220));
- usleep(125*USEC_PER_MSEC);
-
- ioctl(fd, KIOCSOUND, (int)(1193180/220));
- usleep(125*USEC_PER_MSEC);
-
- ioctl(fd, KIOCSOUND, 0);
-}
-
/// UNNEEDED by elogind
#if 0
int make_console_stdio(void) {
return 0;
}
+
+/// UNNEEDED by elogind
+#if 0
+int ptsname_namespace(int pty, char **ret) {
+ int no = -1, r;
+
+ /* Like ptsname(), but doesn't assume that the path is
+ * accessible in the local namespace. */
+
+ r = ioctl(pty, TIOCGPTN, &no);
+ if (r < 0)
+ return -errno;
+
+ if (no < 0)
+ return -EIO;
+
+ if (asprintf(ret, "/dev/pts/%i", no) < 0)
+ return -ENOMEM;
+
+ return 0;
+}
+#endif // 0