4.2BSD/usr/man/man2/rmdir.2

.TH RMDIR 2 "2 July 1983"
.UC 4
.SH NAME
rmdir \- remove a directory file
.SH SYNOPSIS
.nf
.ft B
rmdir(path)
char *path;
.fi
.ft R
.SH DESCRIPTION
.I Rmdir
removes a directory file
whose name is given by
.I path.
The directory must not have any entries other
than \*(lq.\*(rq and \*(lq..\*(rq.
.SH "RETURN VALUE
A 0 is returned if the remove succeeds; otherwise a \-1 is
returned and an error code is stored in the global location \fIerrno\fP\|.
.SH ERRORS
The named file is removed unless one or more of the
following are true:
.TP 15
[ENOTEMPTY]
The named directory contains files other than ``.'' and ``..'' in it.
.TP 15
[EPERM]
The pathname contains a character with the high-order bit set.
.TP 15
[ENOENT]
The pathname was too long.
.TP 15
[ENOTDIR]
A component of the path prefix is not a directory.
.TP 15
[ENOENT]
The named file does not exist.
.TP 15
[EACCES]
A component of the path prefix denies search permission.
.TP 15
[EACCES]
Write permission is denied on the directory containing the link
to be removed.
.TP 15
[EBUSY]
The directory to be removed is the mount point
for a mounted file system.
.TP 15
[EROFS]
The directory entry to be removed resides on a read-only file system.
.TP 15
[EFAULT]
.I Path
points outside the process's allocated address space.
.TP 15
[ELOOP]
Too many symbolic links were encountered in translating the pathname.
.SH "SEE ALSO"
mkdir(2), unlink(2)