Man page - acl_set_fd(3)

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ACL_SET_FD (3) Library Functions Manual ACL_SET_FD (3)

NAME

acl_set_fd — set an ACL by file descriptor

LIBRARY

Linux Access Control Lists library (libacl, -lacl).

SYNOPSIS

#include <sys/types.h>
#include <sys/acl.h>

int

acl_set_fd ( int fd , acl_t acl );

DESCRIPTION

The acl_set_fd () function associates an access ACL with the file referred to by fd .

The effective user ID of the process must match the owner of the file or the process must have the CAP_FOWNER capability for the request to succeed.

RETURN VALUE

The acl_set_fd () function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

ERRORS

If any of the following conditions occur, the acl_set_fd () function returns the value -1 and and sets errno to the corresponding value:

[EBADF]

The fd argument is not a valid file descriptor.

[EINVAL]

The argument acl does not point to a valid ACL.

The ACL has more entries than the file referred to by fd can obtain.

[ENOSPC]

The directory or file system that would contain the new ACL cannot be extended or the file system is out of file allocation resources.

[ENOTSUP]

The file identified by fd cannot be associated with the ACL because the file system on which the file is located does not support this.

[EPERM]

The process does not have appropriate privilege to perform the operation to set the ACL.

[EROFS]

This function requires modification of a file system which is currently read-only.

STANDARDS

IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)

SEE ALSO

acl_delete_def_file (3), acl_get_file (3), acl_set_file (3), acl_valid (3), acl (5)

AUTHOR

Derived from the FreeBSD manual pages written by Robert N M Watson <rwatson@FreeBSD.org>, and adapted for Linux by Andreas Gruenbacher <andreas.gruenbacher@gmail.com>. Linux ACL March 23, 2002 ACL_SET_FD (3)