acl_init(3) [freebsd man page]

ACL_INIT(3)						   BSD Library Functions Manual 					       ACL_INIT(3)

NAME

     acl_init -- initialize ACL working storage

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

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

     acl_t
     acl_init(int count);

DESCRIPTION

     The acl_init() function allocates and initializes the working storage for an ACL of at least count ACL entries.  A pointer to the working
     storage is returned.  The working storage allocated to contain the ACL is freed by a call to acl_free(3).	When the area is first allocated,
     it shall contain an ACL that contains no ACL entries.

     This function may cause memory to be allocated.  The caller should free any releasable memory, when the new ACL is no longer required, by
     calling acl_free(3) with the (void*)acl_t as an argument.

IMPLEMENTATION NOTES

     FreeBSD's support for POSIX.1e interfaces and features is still under development at this time.

RETURN VALUES

     Upon successful completion, this function shall return a pointer to the working storage.  Otherwise, a value of (acl_t)NULL shall be
     returned, and errno shall be set to indicate the error.

ERRORS

     If any of the following conditions occur, the acl_init() function shall return a value of (acl_t)NULL and set errno to the corresponding
     value:

     [EINVAL]		The value of count is less than zero.

     [ENOMEM]		The acl_t to be returned requires more memory than is allowed by the hardware or system-imposed memory management con-
			straints.

SEE ALSO

     acl(3), acl_free(3), posix1e(3)

STANDARDS

     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 information.

HISTORY

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

AUTHORS

     Robert N M Watson

BSD
								 January 28, 2000							       BSD

ACL_CREATE_ENTRY(3)					   BSD Library Functions Manual 				       ACL_CREATE_ENTRY(3)

NAME

     acl_create_entry -- create a new ACL entry

LIBRARY

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

SYNOPSIS

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

     int
     acl_create_entry(acl_t *acl_p, acl_entry_t *entry_p);

DESCRIPTION

     The acl_create_entry() function creates a new ACL entry in the ACL pointed to by the contents of the pointer argument acl_p.  On success, the
     function returns a descriptor for the new ACL entry via entry_p.

     This function may cause memory to be allocated.  The caller should free any releasable memory, when the new ACL is no longer required, by
     calling acl_free(3) with (void*)*acl_p as an argument.  If the ACL working storage cannot be increased in the current location, then the
     working storage for the ACL pointed to by acl_p may be relocated and the previous working storage is released. A pointer to the new working
     storage is returned via acl_p.

     The components of the new ACL entry are initialized in the following ways: the ACL tag type component contains ACL_UNDEFINED_TAG, the quali-
     fier component contains ACL_UNDEFINED_ID, and the set of permissions has no permissions enabled. Any existing ACL entry descriptors that
     refer to entries in the ACL continue to refer to those entries.

RETURN VALUE

     The acl_create_entry() 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_create_entry() function returns -1 and sets errno to the corresponding value:

     [EINVAL]		The argument acl_p is not a valid pointer to an ACL.

     [ENOMEM]		The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management con-
			straints.

STANDARDS

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

SEE ALSO

     acl_init(3), acl_delete_entry(3), acl_free(3), acl_create_entry(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@bestbits.at>.

Linux ACL							  March 23, 2002							 Linux ACL