FCHDIR(3) Library Functions Manual FCHDIR(3)

NAME

fchdir — change working directory

SYNOPSIS

#include <unistd.h>

int fchdir(int fildes);

DESCRIPTION

The fchdir () function shall be equivalent to chdir(3) except that the directory that is to be the new current working directory is specified by the file descriptor fildes.

A conforming application can obtain a file descriptor for a file of type directory using open(3), provided that the file status flags and access modes do not contain O_WRONLY or O_RDWR.

RETURN VALUE

Upon successful completion, fchdir () shall return 0. Otherwise, it shall return -1 and set errno to indicate the error. On failure the current working directory shall remain unchanged.

ERRORS

The fchdir () function shall fail if:

[EACCES]: Search permission is denied for the directory referenced by fildes .
[EBADF]: The fildes argument is not an open file descriptor.
[ENOTDIR]: The open file descriptor fildes does not refer to a directory.

The fchdir () may fail if:

[EINTR]: A signal was caught during the execution of fchdir ().
[EIO]: An I/O error occurred while reading from or writing to the file system.

The following sections are informative.