ACL_FROM_MODE

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Section: C Library Functions (3)
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BSD mandoc
Linux ACL

NAME

acl_from_mode - create an ACL from file permission bits

LIBRARY

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

SYNOPSIS

In sys/types.h In acl/libacl.h Ft acl_t Fn acl_from_mode mode_t mode

DESCRIPTION

The Fn acl_from_mode function creates a minimal ACL that contains the three entries with tag types ACL_USER_OBJ, ACL_GROUP_OBJ, and ACL_OTHER, with permissions corresponding to the owner, group, and other permission bits of its argument mode

RETURN VALUE

On success, this function returns a pointer to the working storage. On error, a value of (acl_t)NULL is returned, and errno is set appropriately.

ERRORS

If any of the following conditions occur, the Fn acl_from_mode function returns a value of (acl_t)NULL and sets errno to the corresponding value:

Bq Er ENOMEM: The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management constraints.

STANDARDS

This is a non-portable, Linux specific extension to the ACL manipulation functions defined in IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned).

AUTHOR

Written by An Andreas Gruenbacher Aq andreas.gruenbacher@gmail.com .