StackOverflow2013

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plurals

PO
primarykey
Id
346727
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2008-12-06T20:26:45.737
FavoriteCount
0
LastActivityDate
2008-12-07T03:58:20.067
LastEditDate
2008-12-07T03:58:20.067
LastEditorUserId
40764
OwnerUserId
40764
ParentId
346361
PostTypeId
2
Score
3
ViewCount
0
LastEditorDisplayName
adjuster
text
Body
-13 is -EACCES. Do you have SO_BROADCAST set? I believe sock_sendmsg returns -EACCES if SO_BROADCAST isn't set and you're sending to a broadcast address. <hr> You're looking for <errno.h> for error codes. <hr> What kernel version are you developing under? I'd like to browse thru the kernel source briefly. I'm not seeing how -ENOPKG can be returned from sock_set, but I do see that -ENOPROTOOPT can be returned (which is errno 92 in kernel 2.6.27). Oh-- and repost that bit of code where you're setting SO_BROADCAST, if you would. I didn't make a note of it and I'd like to look at it again. <hr> Try calling it with SOL_UDP. I think that's what you're looking for. I don't have a 2.6.18 build environment setup anywhere to play w/ this, but give that a shot. No-- nevermind-- that's not going to do what you want. I should've read a little further in the source. I'll keep looking. This is kinda fun. <hr> I suppose you could just set the broadcast flag yourself! smile <pre><code>lock_sock(sock->sk); sock->sk->broadcast = 1; release_sock(sock->sk); </code></pre> <hr> You've got me stumped, and I've got to head off to bed. I did find this bit of code that might be of some assistance, though these guys aren't doing broadcasts. <a href="http://kernelnewbies.org/Simple_UDP_Server" rel="nofollow noreferrer">http://kernelnewbies.org/Simple_UDP_Server</a> Good luck-- I wish I could have solved it for you.
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1. POHow to UDP Broadcast from Linux Kernel?
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PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USEvan Anderson
UserOwnerUserId
1. USEvan Anderson
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2. VO
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