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authorwollman <wollman@FreeBSD.org>2002-06-26 21:46:56 +0000
committerwollman <wollman@FreeBSD.org>2002-06-26 21:46:56 +0000
commit4a461e9ee15f4073dfc50e849319dcb53fbbd66b (patch)
tree80b04d6364e59e7b58248d235b345ca8ab74dd11 /usr.bin/rev/rev.1
parentc576432afc38d9f90886bb08916452bfa56636f2 (diff)
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When the -p flag is specified, set an environment variable to the name
of the remote host (or rather, the name as mangled by realhostname_sa()) so that the process can use it to behave differently depending on the origin on the request. We use this to implement rudimentary visibility control on our user information. Make sure that the child process's standard error goes through the same NVT-ASCII filter as is applied to the standard output. Don't attempt to call logerr() from the child since stdio is not safe in a vforked process. Just write a message to fd 2 instead. (Ideally, the parent would open two pipes, and siphon off our stderr to some place less public, but I have not attempted to do so in this implementation.)
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