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connect: Try all addresses in first connection attempt

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Fixes a bug when all addresses in the first family fail immediately, due
to "Network unreachable" for example, curl would hang and never try the
next address family.

Iterate through all address families when to trying establish the first
connection attempt.

Bug: http://curl.haxx.se/bug/view.cgi?id=1315
Reported-by: Michal Górny and Anthony G. Basile
This commit is contained in:
Björn Stenberg 2013-12-28 13:42:57 +01:00 • committed by Steve Holme
parent 28dd47d4d4
commit 4e1ece2e44
1 changed files with 6 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

12
lib/connect.c
View file

@ -1104,12 +1104,12 @@ CURLcode Curl_connecthost(struct connectdata *conn, /* context */
conn->tempaddr[0]->ai_next == NULL ? timeout_ms : timeout_ms / 2;
/* start connecting to first IP */
res = singleipconnect(conn, conn->tempaddr[0], &(conn->tempsock[0]));
while(res != CURLE_OK &&
conn->tempaddr[0] &&
conn->tempaddr[0]->ai_next &&
conn->tempsock[0] == CURL_SOCKET_BAD)
res = trynextip(conn, FIRSTSOCKET, 0);
while(conn->tempaddr[0]) {
res = singleipconnect(conn, conn->tempaddr[0], &(conn->tempsock[0]));
if(res == CURLE_OK)
break;
conn->tempaddr[0] = conn->tempaddr[0]->ai_next;
}
if(conn->tempsock[0] == CURL_SOCKET_BAD)
return res;