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logind: explicitly check for /dev/tty0

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This commit is contained in:
Lennart Poettering 2012-04-13 17:54:33 +02:00
parent 41807efb15
commit 74afee9c18
1 changed files with 8 additions and 6 deletions
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14
src/login/logind.c
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@ -945,14 +945,16 @@ static int manager_connect_console(Manager *m) {
assert(m);
assert(m->console_active_fd < 0);
/* On certain architectures (S390 and Xen, and containers),
/dev/tty0 does not exist, so don't fail if we can't open
it. */
if (access("/dev/tty0", F_OK) < 0) {
m->console_active_fd = -1;
return 0;
}
m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC);
if (m->console_active_fd < 0) {
/* On certain architectures (S390 and Xen), /dev/tty0
does not exist, so don't fail if we can't open it.*/
if (errno == ENOENT)
return 0;
log_error("Failed to open /sys/class/tty/tty0/active: %m");
return -errno;
}