Mailing List Archive: [Bug 404] ospf_write_frags() doesn't check return value of sendmsg()

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http://bugzilla.quagga.net/show_bug.cgi?id=404

------- Additional Comments From web@pilot.org.ua 2007-09-17 12:49 -------
My best guess is that sendmsg() returns 0, when the message doesn't fit into
buffer (hence it's not fragmentable). This doesn't indicate an error, but should
be handled properly (attempt retried).

------- Additional Comments From paul@dishone.st 2007-09-20 12:16 -------
We likely shouldn't retry the send.

OSPF has higher-level mechanisms to cope with network problems (temporary
inability of an OS to send packets being such). Trying to provide reliability
/under/ those simply degrades their efficacy. ;)

It either gets sent (near) instantly, or we drop it, move on and let OSPF do its
thing.

At least, that should be the position we start from, and argue from there. ;)

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