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


SYNOPSIS

     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 suc­
     ceed.


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 re­
     turns 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 allo­
                   cation 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
     <a.gruenbacher@computer.org>.


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