acl_to_text — convert an ACL to text

Derived from the FreeBSD manual pages written by Robert N M Watson <rwatson@FreeBSD.org>, and adapted for Linux by Andreas Gruenbacher <andreas.gruenbacher@gmail.com>. Linux ACL March 23, 2002 ACL_FROM_TEXT(3)

The acl_to_text() function translates the ACL pointed to by the argument acl into a NULL terminated character string. If the pointer len_p is not NULL, then the function returns the length of the string (not including the NULL terminator) in the location pointed to by len_p. The format of the text string returned by acl_to_text() is the long text form defined in acl(5). The ACL referred to by acl is not changed. This function allocates any memory necessary to contain the string and returns a pointer to the string. The caller should free any releasable memory, when the new string is no longer required, by calling acl_free(3) with the (void*)char returned by acl_to_text() as an argument.

If any of the following conditions occur, the acl_to_text() function returns a value of (char*)NULL and sets errno to the corresponding value: [EINVAL] The argument acl is not a valid pointer to an ACL. The ACL referenced by acl contains one or more improperly formed ACL entries, or for some other reason cannot be translated into a text form of an ACL. [ENOMEM] The character string to be returned requires more memory than is allowed by the hardware or system-imposed memory management constraints.

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

acl_to_text — convert an ACL to text

On success, this function returns a pointer to the long text form of the ACL. On error, a value of (char*)NULL is returned, and errno is set appropriately.

acl_free(3), acl_from_text(3), acl_to_any_text(3), acl(5)

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

#include<sys/types.h>#include<sys/acl.h>char*acl_to_text(acl_tacl, ssize_t*len_p);