From 2baad6eba6c7f4edd3bc1ca266503920e9789ad0 Mon Sep 17 00:00:00 2001 From: Niklas Schulze Date: Wed, 6 Mar 2019 12:46:35 +0100 Subject: [PATCH] backend/session: Allow setting a custom tty via WLR_DIRECT_TTY --- backend/session/direct.c | 16 +++++++++++++--- docs/env_vars.md | 1 + 2 files changed, 14 insertions(+), 3 deletions(-) diff --git a/backend/session/direct.c b/backend/session/direct.c index 7225bff0..c634575a 100644 --- a/backend/session/direct.c +++ b/backend/session/direct.c @@ -155,9 +155,19 @@ static int vt_handler(int signo, void *data) { } static bool setup_tty(struct direct_session *session, struct wl_display *display) { - int fd = open("/dev/tty", O_RDWR | O_CLOEXEC); + + bool default_tty = false; + + const char *tty_path = getenv("WLR_DIRECT_TTY"); + + if (!tty_path) { + tty_path = "/dev/tty"; + default_tty = true; + } + + int fd = open(tty_path, O_RDWR | O_CLOEXEC); if (fd == -1) { - wlr_log_errno(WLR_ERROR, "Cannot open /dev/tty"); + wlr_log_errno(WLR_ERROR, "Cannot open %s", tty_path); return false; } @@ -176,7 +186,7 @@ static bool setup_tty(struct direct_session *session, struct wl_display *display goto error; } - if (kd_mode != KD_TEXT) { + if (default_tty && kd_mode != KD_TEXT) { wlr_log(WLR_ERROR, "tty already in graphics mode; is another display server running?"); goto error; diff --git a/docs/env_vars.md b/docs/env_vars.md index fd8fcbac..04c5aa85 100644 --- a/docs/env_vars.md +++ b/docs/env_vars.md @@ -20,6 +20,7 @@ wlroots specific hardware cursors * *WLR_SESSION*: specifies the wlr\_session to be used (available sessions: logind/systemd, direct) +* *WLR_DIRECT_TTY*: specifies the tty to be used (instead of using /dev/tty) rootston specific ------------------