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acl_size - Determines the size of the data package internal representation of the given ACL
#include <sys/acl.h>
ssize_t acl_size(
acl_t acl_d);
The working storage internal representation of an ACL that the size is desired on.
NOTE: This function is based on Draft 13 of the POSIX P1003.6 standard. The function may change as the P1003.6 standard is finalized.
Given an ACL, the acl_size() function determines the number of bytes required for storing the ACL if converted to data package internal representation using acl_copy_ext().
Upon successful completion, the acl_size function returns the size of the ACL. Otherwise, a value of -1 is returned and errno is set to indicate the error.
If any of the following conditions occur, the acl_size() function sets errno to the corresponding value:
The acl_d argument does not point to an ACL structure.
acl_copy_ext(3)
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