mirror of https://github.com/mkerrisk/man-pages
kcmp.2: KCMP_FILE: note reasons why FDs may refer to same open file description
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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@ -75,6 +75,13 @@ as file descriptor
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.I idx2
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.I idx2
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in the process
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in the process
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.IR pid2 .
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.IR pid2 .
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The existence of two file descriptors that refer to the same
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open file description can occur as a result of
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.BR dup (2)
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(and similar)
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.BR fork (2),
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or passing file descriptors via a domain socket (see
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.BR unix (7)).
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.TP
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.TP
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.BR KCMP_FILES
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.BR KCMP_FILES
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Check whether the processes share the same set of open file descriptors.
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Check whether the processes share the same set of open file descriptors.
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