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FreeBSD 11.0 - man page for acl_create_entry (freebsd section 3)

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

NAME
acl_create_entry acl_create_entry_np -- create a new ACL entry
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sys/types.h> #include <sys/acl.h> int acl_create_entry(acl_t *acl_p, acl_entry_t *entry_p); int acl_create_entry_np(acl_t *acl_p, acl_entry_t *entry_p, int index);
DESCRIPTION
The acl_create_entry() function is a POSIX.1e call that creates a new ACL entry in the ACL pointed to by acl_p. The acl_create_entry_np() function is a non-portable version that creates the ACL entry at position index. Positions are numbered starting from zero, i.e. calling acl_create_entry_np() with index argument equal to zero will prepend the entry to the ACL.
RETURN VALUES
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
The acl_create_entry() function fails if: [EINVAL] Argument acl_p does not point to a pointer to a valid ACL. Argument index is out of bounds. [ENOMEM] The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management con- straints.
SEE ALSO
acl(3), acl_delete_entry(3), acl_get_entry(3), posix1e(3)
STANDARDS
POSIX.1e is described in IEEE POSIX.1e draft 17.
HISTORY
POSIX.1e support was introduced in FreeBSD 4.0. The acl_create_entry() function was added in FreeBSD 5.0.
AUTHORS
The acl_create_entry() function was written by Chris D. Faulhaber <jedgar@fxp.org>.
BSD
June 25, 2009 BSD

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