Directory pointed to by the file descriptor becomes the current working directory.
Standard C Library (libc.a)
int fchdir (int Fildes)
The fchdir subroutine causes the directory specified by the Fildes parameter to become the current working directory.
|Fildes||A file descriptor identifying an open directory obtained from a call to the open subroutine.|
|-1||Not successful and errno set to one of the following.|
|EACCES||Search access if denied.|
|EBADF||The file referred to by Fildes is not an open file descriptor.|
|ENOTDIR||The open file descriptor does not refer to a directory.|
The chdir subroutine, chroot subroutine, open subroutine.