diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/rename_device.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/rename_device.c b/src/rename_device.c index c39f447d..b4ed69eb 100644 --- a/src/rename_device.c +++ b/src/rename_device.c @@ -278,6 +278,14 @@ char *get_config_by_hwaddr(char *hwaddr, char *current) { return first; } +int pid_exist(int pid) +{ + char proc_dir[32]; + sprintf(proc_dir, "/proc/%d/", pid); + return !access(proc_dir, F_OK); +} + + void take_lock() { int count = 0; int lockfd; @@ -309,7 +317,11 @@ void take_lock() { close(fd); pid = atoi(buf); if (pid && pid != 1) { - kill(pid,SIGKILL); + if (pid_exist(pid)) + kill(pid,SIGKILL); + else + if (unlink(LOCKFILE) != 0) + break; } } usleep(100000); |