apt-pkg/contrib/srvrec.cc: res_query() should not generate a _error->Warning()

1 files changed, 2 insertions, 0 deletions

diff --git a/apt-pkg/contrib/srvrec.cc b/apt-pkg/contrib/srvrec.cc
index 1dcda8b54..85241c1d7 100644
--- a/apt-pkg/contrib/srvrec.cc
+++ b/apt-pkg/contrib/srvrec.cc
@@ -41,6 +41,8 @@ bool GetSrvRecords(std::string name, std::vector<SrvRec> &Result)
       return _error->Errno("res_init", "Failed to init resolver");
 
    answer_len = res_query(name.c_str(), C_IN, T_SRV, answer, sizeof(answer));
+   if (answer_len == -1)
+      return false;
    if (answer_len < (int)sizeof(HEADER))
       return _error->Warning("Not enough data from res_query (%i)", answer_len);