gamemode/lib/client_impl.c
Ikey Doherty 8fb77e639d Ensure to set _GNU_SOURCE for POSIX compliance with signals
The systemd bus headers aren't setting a POSIX compliance level so we
define the catch-all to ensure the build doesn't error out, as seen with
issue #3. This is due to the reliance of `siginfo_t`, which requires a
minimum POSIX level of `199309L` when using glibc.

Signed-off-by: Ikey Doherty <ikey@solus-project.com>
2018-04-10 14:09:39 +01:00

108 lines
3.3 KiB
C

/*
Copyright (c) 2017-2018, Feral Interactive
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of Feral Interactive nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#define _GNU_SOURCE
#include <dlfcn.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <systemd/sd-bus.h>
#include <unistd.h>
// Storage for error strings
static char error_string[512] = { 0 };
// Simple requestor function for a gamemode
static int gamemode_request(const char *function)
{
sd_bus_message *msg = NULL;
sd_bus *bus = NULL;
int result = -1;
// Open the user bus
int ret = sd_bus_open_user(&bus);
if (ret < 0) {
snprintf(error_string,
sizeof(error_string),
"Could not connect to bus: %s",
strerror(-ret));
} else {
// Attempt to send the requested function
ret = sd_bus_call_method(bus,
"com.feralinteractive.GameMode",
"/com/feralinteractive/GameMode",
"com.feralinteractive.GameMode",
function,
NULL,
&msg,
"i",
getpid());
if (ret < 0) {
snprintf(error_string,
sizeof(error_string),
"Could not call method on bus: %s",
strerror(-ret));
} else {
// Read the reply
ret = sd_bus_message_read(msg, "i", &result);
if (ret < 0) {
snprintf(error_string,
sizeof(error_string),
"Failure to parse response: %s",
strerror(-ret));
}
}
}
return result;
}
// Get the error string
extern const char *real_gamemode_error_string(void)
{
return error_string;
}
// Wrapper to call RegisterGame
extern int real_gamemode_request_start(void)
{
return gamemode_request("RegisterGame");
}
// Wrapper to call UnregisterGame
extern int real_gamemode_request_end(void)
{
return gamemode_request("UnregisterGame");
}