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terminal: lxc_setup_tios()

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Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner 2018-02-28 12:02:51 +01:00
parent ea5b3c2335
commit e4953e62da
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GPG Key ID: 8EB056D53EECB12D
1 changed files with 9 additions and 6 deletions
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15
src/lxc/terminal.c
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@ -473,16 +473,18 @@ int lxc_terminal_mainloop_add(struct lxc_epoll_descr *descr,
int lxc_setup_tios(int fd, struct termios *oldtios)
{
int ret;
struct termios newtios;
if (!isatty(fd)) {
ERROR("'%d' is not a tty", fd);
ERROR("File descriptor %d does not refert to a terminal", fd);
return -1;
}
/* Get current termios */
if (tcgetattr(fd, oldtios)) {
SYSERROR("failed to get current terminal settings");
/* Get current termios. */
ret = tcgetattr(fd, oldtios);
if (ret < 0) {
SYSERROR("Failed to get current terminal settings");
return -1;
}
@ -511,8 +513,9 @@ int lxc_setup_tios(int fd, struct termios *oldtios)
newtios.c_cc[VTIME] = 0;
/* Set new attributes. */
if (tcsetattr(fd, TCSAFLUSH, &newtios)) {
ERROR("failed to set new terminal settings");
ret = tcsetattr(fd, TCSAFLUSH, &newtios);
if (ret < 0) {
ERROR("Failed to set new terminal settings");
return -1;
}