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res_send: Avoid spurious close()s and (rare) failure

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When looping over the current list of sockets we are connected to,
use getpeername() not getsockname() to find out who the remote
end is.  This change avoids spurious close() and (rare) failure.

Origin: ISC bug #18625 and fixed in libbind 6.0

Change-Id: I5e85f9ff4b98c237978e4bf4bd85ba0a90d768e6
This commit is contained in:
Jim Huang 2011-12-12 16:32:56 +08:00
parent e30e909363
commit 87043f9c89
1 changed files with 1 additions and 1 deletions
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2
libc/netbsd/resolv/res_send.c
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@ -413,7 +413,7 @@ res_nsend(res_state statp,
if (EXT(statp).nssocks[ns] == -1)
continue;
peerlen = sizeof(peer);
if (getsockname(EXT(statp).nssocks[ns],
if (getpeername(EXT(statp).nssocks[ns],
(struct sockaddr *)(void *)&peer, &peerlen) < 0) {
needclose++;
break;