diff options
Diffstat (limited to 'util-linux/mdev.c')
| -rw-r--r-- | util-linux/mdev.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/util-linux/mdev.c b/util-linux/mdev.c index c7109373d..9c4938a70 100644 --- a/util-linux/mdev.c +++ b/util-linux/mdev.c @@ -19,7 +19,8 @@ struct globals { #define root_major (G.root_major) #define root_minor (G.root_minor) -#define MAX_SYSFS_DEPTH 3 /* prevent infinite loops in /sys symlinks */ +/* Prevent infinite loops in /sys symlinks */ +#define MAX_SYSFS_DEPTH 3 /* We use additional 64+ bytes in make_device() */ #define SCRATCH_SIZE 80 @@ -392,11 +393,17 @@ int mdev_main(int argc, char **argv) char *env_path; RESERVE_CONFIG_BUFFER(temp, PATH_MAX + SCRATCH_SIZE); -#ifdef YOU_WANT_TO_DEBUG_HOTPLUG_EVENTS + /* We can be called as hotplug helper */ /* Kernel cannot provide suitable stdio fds for us, do it ourself */ +#if 1 + bb_sanitize_stdio(); +#else + /* Debug code */ /* Replace LOGFILE by other file or device name if you need */ #define LOGFILE "/dev/console" - xmove_fd(xopen("/dev/null", O_RDONLY), STDIN_FILENO); + /* Just making sure fd 0 is not closed, + * we don't really intend to read from it */ + xmove_fd(xopen("/", O_RDONLY), STDIN_FILENO); xmove_fd(xopen(LOGFILE, O_WRONLY|O_APPEND), STDOUT_FILENO); xmove_fd(xopen(LOGFILE, O_WRONLY|O_APPEND), STDERR_FILENO); #endif @@ -414,11 +421,11 @@ int mdev_main(int argc, char **argv) root_minor = minor(st.st_dev); recursive_action("/sys/block", - ACTION_RECURSE | ACTION_FOLLOWLINKS, + ACTION_RECURSE /* no ACTION_FOLLOWLINKS! */, fileAction, dirAction, temp, 0); recursive_action("/sys/class", - ACTION_RECURSE | ACTION_FOLLOWLINKS, + ACTION_RECURSE /* no ACTION_FOLLOWLINKS! */, fileAction, dirAction, temp, 0); } else { |