1io_closeonexec(3)          Library Functions Manual          io_closeonexec(3)
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NAME

6       io_closeonexec - mark a file descriptor non-inheritable
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SYNTAX

9       #include <io.h>
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11       void io_closeonexec(int64 fd);
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DESCRIPTION

14       io_closeonexec  marks  a  file  descriptor non-inheritable.  It will be
15       automatically closed if the process  executes  a  different  one.   The
16       descriptor will not be automatically closed when you fork() a new child
17       process, though.
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SEE ALSO

20       io_wait(3), io_canwrite(3)
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24                                                             io_closeonexec(3)