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manager: support systems lacking /dev/tty0

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This commit is contained in:
Lennart Poettering 2012-04-13 16:53:49 +02:00
parent e58a12770c
commit a41b539efc
1 changed files with 9 additions and 5 deletions
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14
src/core/manager.c
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@ -141,13 +141,17 @@ static int enable_special_signals(Manager *m) {
assert(m);
/* Enable that we get SIGINT on control-alt-del */
if (reboot(RB_DISABLE_CAD) < 0)
/* Enable that we get SIGINT on control-alt-del. In containers
* this will fail with EPERM, so ignore that. */
if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM)
log_warning("Failed to enable ctrl-alt-del handling: %m");
if ((fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC)) < 0)
log_warning("Failed to open /dev/tty0: %m");
else {
fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);
if (fd < 0) {
/* Support systems without virtual console */
if (fd != -ENOENT)
log_warning("Failed to open /dev/tty0: %m");
} else {
/* Enable that we get SIGWINCH on kbrequest */
if (ioctl(fd, KDSIGACCEPT, SIGWINCH) < 0)
log_warning("Failed to enable kbrequest handling: %s", strerror(errno));