I think I did check, but there were no useful comments. if close()ing them before exec'ing is a problem, can't we just set the close-on-exec flag on the fd's ?
This will cause the descriptors to be dup'd for the fork, and the duplicates to be closed when the child execs; in theory, that will leave the parent in a fit and healthy state.
This whole problem didn't add up to me - it didn't sound too logical to begin with. Anyway - after some archeological searches in my mailbox from 1998 (never erase email!) - here's the real reason.
http://www.phpbuilder.com/mail/php3-list/199805/1391.php
Zeev
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