FreeBSD 4.7 manual page repository

FreeBSD is a free computer operating system based on BSD UNIX originally. Many IT companies, like DeployIS is using it to provide an up-to-date, stable operating system.

acl_set_fd, acl_set_fd_np, acl_set_file - set an ACL for a file



      acl_set_fd, acl_set_fd_np, acl_set_file - set an ACL for a file


      library “libposix1e”


      #include <sys/types.h>
      #include <sys/acl.h>
      acl_set_file(const char *path_p, acl_type_t type, acl_t acl);
      acl_set_fd(int fd, acl_t acl);
      acl_set_fd_np(int fd, acl_t acl, acl_type_t type);


      The acl_set_file(), acl_set_fd(), and acl_set_fd_np() each associate an
      ACL with an object referred to by fd or path_p.  All except
      acl_set_fd_np() are POSIX.1e calls-- acl_set_fd() allows only the setting
      of ACLs of type ACL_TYPE_ACCESS where as acl_set_fd_np() allows the set‐
      ting of ACLs of any type.
      FreeBSD’s support for POSIX.1e interfaces and features is still under
      development at this time.
      Upon successful completion, the value 0 is returned; otherwise the
      value -1 is returned and the global variable errno is set to indicate the


      If any of the following conditions occur, these functions shall return -1
      and set errno to the corresponding value:
      [EACCES]           Search permission is denied for a component of the
                         path prefix, or the object exists and the process does
                         not have appropriate access rights.
      [EBADF]            The fd argument is not a valid file descriptor.
      [EINVAL]           Argument acl does not point to a valid ACL for this
                         object, or the ACL type specified in type is invalid
                         for this object, or both.
      [ENAMETOOLONG]     A component of a pathname exceeded 255 characters, or
                         an entire path name exceeded 1023 characters.
      [ENOENT]           The named object does not exist, or the path_p argu‐
                         ment points to an empty string.
      [ENOMEM]           Insufficient memory available to fulfill request.
      [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.
      [EOPNOTSUPP]       The file system does not support ACL retrieval.
      [EROFS]            This function requires modification of a file system
                         which is currently read-only.
      acl(3), acl_delete(3), acl_get(3), acl_valid(3), posix1e(3)


      POSIX.1e is described in IEEE POSIX.1e draft 17.  Discussion of the draft
      continues on the cross-platform POSIX.1e implementation mailing list.  To
      join this list, see the FreeBSD POSIX.1e implementation page for more


      POSIX.1e support was introduced in FreeBSD 4.0, and development contin‐


      Robert N M Watson


      These features are not yet fully implemented.  In particular, the shipped
      version of UFS/FFS does not support storage of additional security
      labels, and so is unable to (easily) provide support for most of these


Based on BSD UNIX
FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon64, and EM64T), UltraSPARC, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.