The printf() format specifier "%m" is a glibc extension to print
the string returned by strerror(errno). While supported by other
libraries (e.g. uClibc and musl), it is not widely portable.
In Weston code the format string is often passed to a logging
function that calls other syscalls before the conversion of "%m"
takes place. If one of such syscall modifies the value in errno,
the conversion of "%m" will incorrectly report the error string
corresponding to the new value of errno.
Remove all the occurrences of the specifier "%m" in Weston code
by using directly the string returned by strerror(errno).
While there, fix some minor indentation issue.
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
error() is not posix but gnu extension so may not be available on all
kind of systemsi e.g. musl.
Signed-off-by: Randy 'ayaka' Li <ayaka@soulik.info>
Signed-off-by: Randy Li <randy.li@rock-chips.com>
If the user is in group 0, we'd exit the loop early with a failure. Make sure
we run through all groups.
https://gitlab.freedesktop.org/wayland/weston/issues/86
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
[Pekka: fix one whitespace]
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Explain that -u requires root and -t requires -u. Most importantly,
document in what format does -t expect the tty to be given.
It has been confusing, because Weston's --tty option takes an integer,
weston-launch takes a full device path.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Fix an issue introduced in:
commit ab4999492c
Author: Kristian Høgsberg <krh@bitplanet.net>
Date: Fri Jul 19 21:26:24 2013 -0700
weston-launch: Drop sleep_fork option
where the option string accidentally became "t::". That causes
$ weston-lauch -t /dev/tty4
to be parsed incorrectly, as if -t option had no argument and the tty
path gets passed to weston which errors out because of it.
This patch fixes the above to work as expected.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
setup_tty() function uses the tty argument for choosing the tty/VT only
if wl->new_user (the -u option) is given. If the tty option is given
without -u, it will only be used for misleading error messages.
To make it clear to the user that -t without -u does not work the way
one might think, let weston-launch exit with an error in that case.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
HAVE_LIBDRM was used as a condition for the launcher infrastructure to
call libdrm.so functions. It was set by an independent test for libdrm,
which would silently continue if libdrm was not found. It was assumed
that if you enabled a feature that used libdrm at runtime, the test for
that feature would imply that HAVE_LIBDRM is also set. This was quite
subtle.
The only feature that actually uses libdrm.so at runtime is the DRM
backend. No other backend needs the libdrm calls in the launcher
infrastructure.
Therefore to simplify things, stop using HAVE_LIBDRM and use
BUILD_DRM_COMPOSITOR instead. If you enable the DRM compositor, you
automatically also get libdrm support in the launchers.
There are still things depending on LIBDRM_CFLAGS and LIBDRM_LIBS, so
the test cannot be removed completely.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
This way, the environment is correctly preserved for weston. Since
commit 636156d5f6, clearenv() is only
called when we open a new PAM session, so it makes sense to only use a
login shell in that case.
Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This clarifies what is supposed to be the libweston code.
v2: screen-share.c is already in compositor/ instead.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Tested-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Tested-by: Benoit Gschwind <gschwind@gnu-log.net>
Acked-by: Benoit Gschwind <gschwind@gnu-log.net>
[Pekka: rebased]
