CLOSEFROM(3) Library Functions Manual CLOSEFROM(3)

closefrom
delete many descriptors

#include <unistd.h>

int
closefrom(int fd);

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:
[]
fd is invalid.
[]
An interrupt was received.

close(2)
June 1, 2004 NetBSD 9.2