Public bug reported:
I ran ito this strange thing...
while developing a dummy server and testing it on the local interface.
The sistem "refuses" to send a SIGPIPE error on a socket that lost connection
from the other side; apparently the setsockopt( ) function does nothing to
change the SO_KEEPALIVE parameter. What i mean is that it returns an ok result
( 0 = no error ) but does not change the state of the socket.
And i fact after terminating the connection from the other side nothing
happens. The signal is not blocked. I checked with a kill comand and it works.
Even the poll() doesn't return the POLLHUP that i expect.
I'm sure the client DOES disconnect ( it's telnet and after 'ctrl ]' and
then " quit" it prints " connection closed" so i guess it's closed :)...
this is the code for setsockopt
int keepalive=1;
if(setsockopt(S,SOL_SOCKET,SO_KEEPALIVE,(void*)&keepalive,sizeof(keepalive))!=0)
quit (SERVER_SOCKET_ERROR);
//and no error so it should vork
but when checking with a getsockopt it's still 0.
any ideea ?
** Affects: ubuntu
Importance: Undecided
Status: New
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sockets SIGPIPE not sent
https://bugs.launchpad.net/bugs/153649
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