diff options
Diffstat (limited to 'udev/lib/libudev-utils.c')
| -rw-r--r-- | udev/lib/libudev-utils.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/udev/lib/libudev-utils.c b/udev/lib/libudev-utils.c index 8251b64da9..82acb1a481 100644 --- a/udev/lib/libudev-utils.c +++ b/udev/lib/libudev-utils.c @@ -32,7 +32,7 @@ #include "libudev-private.h" #include "../udev.h" -ssize_t util_get_sys_subsystem(struct udev *udev, const char *devpath, char *subsystem, size_t size) +static ssize_t get_sys_link(struct udev *udev, const char *slink, const char *devpath, char *subsystem, size_t size) { char path[PATH_SIZE]; ssize_t len; @@ -40,7 +40,8 @@ ssize_t util_get_sys_subsystem(struct udev *udev, const char *devpath, char *sub strlcpy(path, udev_get_sys_path(udev), sizeof(path)); strlcat(path, devpath, sizeof(path)); - strlcat(path, "/subsystem", sizeof(path)); + strlcat(path, "/", sizeof(path)); + strlcat(path, slink, sizeof(path)); len = readlink(path, path, sizeof(path)); if (len < 0 || len >= (ssize_t) sizeof(path)) return -1; @@ -51,3 +52,14 @@ ssize_t util_get_sys_subsystem(struct udev *udev, const char *devpath, char *sub pos = &pos[1]; return strlcpy(subsystem, pos, size); } + +ssize_t util_get_sys_subsystem(struct udev *udev, const char *devpath, char *subsystem, size_t size) +{ + return get_sys_link(udev, "subsystem", devpath, subsystem, size); +} + +ssize_t util_get_sys_driver(struct udev *udev, const char *devpath, char *driver, size_t size) +{ + return get_sys_link(udev, "driver", devpath, driver, size); +} + |