The Camel book says that "perl always sets the close-on-exec flag for file descriptors above 2". When I open sockets with IO::Socket::INET->new() and I fork then exec a child, the sockets are still open in the child. Is the Camel book wrong or does something in IO::Socket::INET->new() behave differently than the Camel book indicates. A grep for fcntl and the CLOEXEC flag didn't turn up anything, nor did a search on perlmonks. If there is an fcntl or something changing the behavior, can someone give me a hint as to why, please? (I'm on Linux 2.2.17; perl 5.005_03). 
IO::Socket::INET->new(Listen => 5,
                      LocalAddr => 'localhost',
                      LocalPort => 2000,
                      Proto     => 'udp');

#...
exec "otherprog" if fork == 0;

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Thanks, --traveler

In reply to sockets close-on-exec by traveler

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