CLOSEFROM(3)

CLOSEFROM(3) | Library Functions Manual | CLOSEFROM(3)

# NAME

`closefrom` —
delete 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, a value of 0 is returned. Otherwise, a value of -1 is returned and errno is set to indicate the error.

# ERRORS

`closefrom`() will fail if:

[`EBADF`]
  fd is invalid.
[`EINTR`]
  An interrupt was received.

# SEE ALSO

close(2)

# HISTORY

This function first appeared in NetBSD 3.

November 9, 2022 | NetBSD 10.1