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| author | Aleksey Kliger (λgeek) <alklig@microsoft.com> | 2021-08-31 02:17:56 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-08-31 02:17:56 +0300 |
| commit | a1ada04a58a69c792e0bb37021e98b9c0b0dc686 (patch) | |
| tree | a33e1ae4e09b404d0d409af96fadcc7db837e64d | |
| parent | 3cf59ad33daa57120ec2d3ca97cfdff4c89ca372 (diff) | |
[2020-02][linux] Some pseudo-tty fixes (#21205)mono-6.12.0.152
* Ignore EINVAL errors on ioctl TIOCMGET/TIOCMSET so (#20219)
pseudo-ttys are usable. (#20218)
* Fix pseudo-ttys for kernel versions >= 5.13 (#21203)
Co-authored-by: csanchezdll <csanchezdll@gmail.com>
| -rw-r--r-- | support/serial.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/support/serial.c b/support/serial.c index 74c54b0a21c..30542da9dd4 100644 --- a/support/serial.c +++ b/support/serial.c @@ -510,7 +510,15 @@ set_signal (int fd, MonoSerialSignal signal, gboolean value) expected = get_signal_code (signal); if (ioctl (fd, TIOCMGET, &signals) == -1) - return -1; + { + /* Return successfully for pseudo-ttys. + * Linux kernels < 5.13 return EINVAL, + * but versions >=5.13 return ENOTTY. */ + if (errno == EINVAL || errno == ENOTTY) + return 1; + + return -1; + } activated = (signals & expected) != 0; if (activated == value) /* Already set */ |