CVS commit: src/lib/librumphijack

["Robert Elz" <kre%netbsd.org@localhost>]

Module Name:    src
Committed By:   kre
Date:           Thu Aug 11 09:48:57 UTC 2016

Modified Files:
        src/lib/librumphijack: hijack.c

Log Message:
Object to dup2() if target fd is in the range of fd's that
librumphijack reserves for rump to use.

This is not normally a problem, as most applications don't attempt
to use very high fds - but /bin/sh does.

This fix is something of a kludge - really the apparent fd resource limit
ought to be lowered as well, but this is sufficient to allow the shell
to work (when its dup2() gets rejected, it just tries again with a smaller
target fd until it eventually succeeds.)   This fixes the librumphijack
shell ATF tests.

A better, more comprehensive, fix would be good...


To generate a diff of this commit:
cvs rdiff -u -r1.119 -r1.120 src/lib/librumphijack/hijack.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.