static int spawn_exec(struct udev_event *event,
const char *cmd, char *const argv[], char **envp, const sigset_t *sigmask,
int fd_stdout, int fd_stderr) {
- int err;
- int fd;
+ _cleanup_close_ int fd = -1;
/* discard child output or connect to pipe */
fd = open("/dev/null", O_RDWR);
dup2(fd, STDOUT_FILENO);
if (fd_stderr < 0)
dup2(fd, STDERR_FILENO);
- close(fd);
- } else {
+ } else
log_error("open /dev/null failed: %m");
- }
/* connect pipes to std{out,err} */
if (fd_stdout >= 0) {
dup2(fd_stdout, STDOUT_FILENO);
- close(fd_stdout);
+ safe_close(fd_stdout);
}
if (fd_stderr >= 0) {
dup2(fd_stderr, STDERR_FILENO);
- close(fd_stderr);
+ safe_close(fd_stderr);
}
/* terminate child in case parent goes away */
execve(argv[0], argv, envp);
/* exec failed */
- err = -errno;
log_error("failed to execute '%s' '%s': %m", argv[0], cmd);
- return err;
+
+ return -errno;
}
static void spawn_read(struct udev_event *event,
for (i = 0; i < fdcount; i++) {
int *fd = (int *)ev[i].data.ptr;
+ if (*fd < 0)
+ continue;
+
if (ev[i].events & EPOLLIN) {
ssize_t count;
char buf[4096];
if (event->dev_db != NULL) {
udev_device_set_syspath(event->dev_db, udev_device_get_syspath(dev));
udev_device_set_subsystem(event->dev_db, udev_device_get_subsystem(dev));
+ udev_device_set_devnum(event->dev_db, udev_device_get_devnum(dev));
udev_device_read_db(event->dev_db, NULL);
udev_device_set_info_loaded(event->dev_db);