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Commit 31f7df5f authored by Mark Salyzyn's avatar Mark Salyzyn
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liblog: reject empty logging messages

A regression after "liblog: Instrument logging of logd write drops"
where an empty payload would result in an insufficient iovec to
report the write drop.

Change-Id: Iffabcfbb0680898d7a42004700e638e9d940ff5f
parent 928cbdd2
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+4 −0
Original line number Diff line number Diff line
@@ -178,6 +178,10 @@ static int __write_to_log_daemon(log_id_t log_id, struct iovec *vec, size_t nr)
    static pid_t last_pid = (pid_t) -1;
    static atomic_int_fast32_t dropped;

    if (!nr) {
        return -EINVAL;
    }

    if (last_uid == AID_ROOT) { /* have we called to get the UID yet? */
        last_uid = getuid();
    }