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authorAndreas Streichardt <andreas@arangodb.com>2016-10-10 13:08:24 +0200
committerDaniel Stenberg <daniel@haxx.se>2016-10-10 14:14:20 +0200
commiteb5199317ee729ab1893fc629a8f4f0ca7f7aa1e (patch)
tree01d5804e5050a6c245ad078e921cb4c75c8d1f64 /lib
parent7cc9c876e84368e02cc306959379e21eeabd4d36 (diff)
resolve: add error message when resolving using SIGALRM
Closes #1066
Diffstat (limited to 'lib')
-rw-r--r--lib/hostip.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/hostip.c b/lib/hostip.c
index f2d984164..24a922eb2 100644
--- a/lib/hostip.c
+++ b/lib/hostip.c
@@ -603,11 +603,14 @@ int Curl_resolv_timeout(struct connectdata *conn,
/* USE_ALARM_TIMEOUT defined, but no timeout actually requested */
return Curl_resolv(conn, hostname, port, entry);
- if(timeout < 1000)
+ if(timeout < 1000) {
/* The alarm() function only provides integer second resolution, so if
we want to wait less than one second we must bail out already now. */
+ failf(data,
+ "remaining timeout of %ld too small to resolve via SIGALRM method",
+ timeout);
return CURLRESOLV_TIMEDOUT;
-
+ }
/* This allows us to time-out from the name resolver, as the timeout
will generate a signal and we will siglongjmp() from that here.
This technique has problems (see alarmfunc).