Yu Watanabe
13ce62caba
The read value are exposed by sd_device_get_subsystem() and friends. Hence, it is better to filter invalid characters. Of course, these should be always safe unless the kernel is buggy. But, just for safety. Note, even if uevent file contains invalid characters, then device_read_uevent_file() should succeed without parsing the contents. The caller should fail later with a proper error code if a necessary field is unset. E.g. sd_device_get_ifindex() should still return -ENOENT even when uevent file contains an invalid characters.
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