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diff --git a/back.c b/back.c
index f364e31..c1810dc 100644
--- a/back.c
+++ b/back.c
@@ -26,7 +26,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "cmd.h"
#define CFGFILE "/etc/spnavrc"
-#define PIDFILE "/var/run/spnavd.pid"
int get_daemon_pid(void);
static int update_cfg(void);
@@ -97,11 +96,26 @@ int get_daemon_pid(void)
{
FILE *fp;
char buf[64];
+ char* xdg_runtime_dir;
+ char* pidfile;
- if(!(fp = fopen(PIDFILE, "r"))) {
+ if(!(xdg_runtime_dir = getenv("XDG_RUNTIME_DIR"))){
+ fprintf(stderr, "XDG_RUNTIME_DIR not set, can't find spacenav pid file\n");
+ return -1;
+ }
+ pidfile = malloc(strlen(xdg_runtime_dir) + strlen("/spnavd.pid") + 1);
+ if (pidfile == NULL) {
+ fprintf(stderr, "failed to allocate memory\n");
+ return -1;
+ }
+ sprintf(pidfile, "%s/spnavd.pid", xdg_runtime_dir);
+
+ if(!(fp = fopen(pidfile, "r"))) {
fprintf(stderr, "no spacenav pid file, can't find daemon\n");
+ free(pidfile);
return -1;
}
+ free(pidfile);
if(!fgets(buf, sizeof buf, fp) || !isdigit(buf[0])) {
fprintf(stderr, "corrupted pidfile, can't find the daemon\n");
fclose(fp);
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