path: root/arch
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authorRich Felker <>2020-05-19 19:25:42 -0400
committerRich Felker <>2020-05-19 19:25:42 -0400
commit1b4e84c56df0f8ca30f6bc05962a860f869e71df (patch)
treeb0f6cb873b88d8546f77653f57cc3ab2bb887a49 /arch
parent5cf1ac2443ad0dba263559a3fe043d929e0e5c4c (diff)
fix return value of res_send, res_query on errors from nameserver
the internal __res_msend returns 0 on timeout without having obtained any conclusive answer, but in this case has not filled in meaningful anslen. res_send wrongly treated that as success, but returned a zero answer length. any reasonable caller would eventually end up treating that as an error when attempting to parse/validate it, but it should just be reported as an error. alternatively we could return the last-received inconclusive answer (typically servfail), but doing so would require internal changes in __res_msend. this may be considered later.
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions