diff options
| -rw-r--r-- | util-linux/mdev.c | 43 |
1 files changed, 29 insertions, 14 deletions
diff --git a/util-linux/mdev.c b/util-linux/mdev.c index 10369ded3..135843581 100644 --- a/util-linux/mdev.c +++ b/util-linux/mdev.c @@ -18,6 +18,7 @@ #include <sys/stat.h> #include <sys/types.h> #include <unistd.h> +#include <stdlib.h> #include "busybox.h" #include "xregex.h" @@ -209,20 +210,34 @@ static void find_dev(char *path) int mdev_main(int argc, char *argv[]) { - if (argc > 1) { - if (argc == 2 && !strcmp(argv[1],"-s")) { - RESERVE_CONFIG_BUFFER(temp,PATH_MAX); - strcpy(temp,"/sys/block"); - find_dev(temp); - strcpy(temp,"/sys/class"); - find_dev(temp); - if(ENABLE_FEATURE_CLEAN_UP) - RELEASE_CONFIG_BUFFER(temp); - return 0; - } else bb_show_usage(); - } - -/* hotplug support goes here */ + char *action; + char *env_path; + RESERVE_CONFIG_BUFFER(temp,PATH_MAX); + + /* Scan */ + if (argc == 2 && !strcmp(argv[1],"-s")) { + strcpy(temp,"/sys/block"); + find_dev(temp); + strcpy(temp,"/sys/class"); + find_dev(temp); + + /* Hotplug */ + + } else { + action = getenv("ACTION"); + env_path = getenv("DEVPATH"); + if (!action || !env_path) bb_show_usage(); + + if (!strcmp(action, "add")) { + sprintf(temp, "/sys%s", env_path); + make_device(temp); + } else if (!strcmp(action, "remove")) { + sprintf(temp, "%s/%s", DEV_PATH, strrchr(env_path, '/') + 1); + unlink(temp); + } + } + + if(ENABLE_FEATURE_CLEAN_UP) RELEASE_CONFIG_BUFFER(temp); return 0; } |