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terminal-util: drop support for pre-TIOCGPTPEER kernels

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Our minimum baseline is now far beyond 4.13, hence let's drop these
fallback paths.
This commit is contained in:
Lennart Poettering
2025-01-15 10:39:04 +01:00
parent 3eafa5e23c
commit 1d522f1a86
5 changed files with 5 additions and 45 deletions
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src/machine/machine.c
+1 -7
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@@ -805,13 +805,7 @@ int machine_start_shell(
if (!p || !utmp_id)
return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Path of pseudo TTY has unexpected prefix");
/* First try to get an fd for the PTY peer via the new racefree ioctl(), directly. Otherwise go via
* joining the namespace, because it goes by path */
pty_fd = pty_open_peer_racefree(ptmx_fd, O_RDWR|O_NOCTTY|O_CLOEXEC);
if (ERRNO_IS_NEG_NOT_SUPPORTED(pty_fd)) {
log_debug_errno(pty_fd, "Failed to get PTY peer via racefree ioctl() (ptmx_fd=%d). Trying via joining the namespace (ptmx_name=%s): %m", ptmx_fd, ptmx_name);
pty_fd = machine_open_terminal(m, ptmx_name, O_RDWR|O_NOCTTY|O_CLOEXEC);
}
pty_fd = pty_open_peer(ptmx_fd, O_RDWR|O_NOCTTY|O_CLOEXEC);
if (pty_fd < 0)
return log_debug_errno(pty_fd, "Failed to open terminal: %m");