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CLOSEFROM(2) System Calls Manual CLOSEFROM(2)

NAME

closefromdelete many descriptors

SYNOPSIS

#include <unistd.h>
int
closefrom(int fd);

DESCRIPTION

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.

RETURN VALUES

Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

ERRORS

closefrom() will fail if:
 
 
[EBADF]
fd is greater than all open file descriptors.
 
 
[EINTR]
An interrupt was received.

SEE ALSO

close(2)

STANDARDS

closefrom() is a BSD and Solaris extension.

HISTORY

The closefrom() call first appeared in OpenBSD 3.5.
September 10, 2015 OpenBSD-current