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CLOSEFROM(3) BSD Library Functions Manual CLOSEFROM(3)
closefrom -- delete many descriptors
The closefrom() call deletes all descriptors numbered fd and higher from the per-process
file descriptor table. It is effectively the same as calling close(2) on each descriptor.
Upon successful completion, a value of 0 is returned. Otherwise, a value of -1 is returned
and errno is set to indicate the error.
closefrom() will fail if:
[EBADF] fd is invalid.
[EINTR] An interrupt was received.
BSD June 1, 2004 BSD
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