mirror of https://github.com/mirror/busybox.git
31 lines
507 B
Plaintext
Executable File
31 lines
507 B
Plaintext
Executable File
# make sure we have a way of checking these things
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cd /proc/$$/fd || cd /dev/fd || exit 1
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[ -e 44 ] && exit 1
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exec 44>/dev/null
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[ -e 44 ] || exit 1
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echo pass fd out open
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[ -e 55 ] && exit 1
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exec 55>&44
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[ -e 55 ] || exit 1
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echo pass fd out dup
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exec 44>&-
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[ -e 44 ] && exit 1
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echo pass fd out close
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[ -e 66 ] && exit 1
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exec 66</dev/null
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[ -e 66 ] || exit 1
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echo pass fd in open
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[ -e 77 ] && exit 1
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exec 77<&66
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[ -e 77 ] || exit 1
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echo pass fd in dup
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exec 66<&-
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[ -e 66 ] && exit 1
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echo pass fd in close
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