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Date:	Fri, 03 Aug 2001 13:08:26 +0100
From:	Bill Petheram <bilpet AT hplb DOT hpl DOT hp DOT com>
Organization:	TESL, HP Labs Bristol
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To:	Corinna Vinschen <cygwin AT cygwin DOT com>, Lapo Luchini <lapo AT lapo DOT it>
Subject:	Rsync: found the problem
References:	<610A1F4808E9D411888F0001023F6361A2EC AT MUCX> <3B46E116 DOT 20508 DOT C8E5ACB AT localhost> <20010707095422 DOT C7298 AT redhat DOT com> <3B499BF7 DOT 6D8FCABC AT hplb DOT hpl DOT hp DOT com> <20010709222226 DOT A16128 AT cygbert DOT vinschen DOT de> <3B6960FA DOT 8099DD72 AT hplb DOT hpl DOT hp DOT com>

What seems to happen is that rsh reads from stdin. rsh sets stdin to be
O_BINARY. However in _read (syscalls.cc) the wait flag is NOT set, so
_read returns -1 and EAGAIN. So stdin for rsh has been set to no delay,
probably by rsync.

What are the rules for inheriting flags and socket options across forks?

bill

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