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#ifdef HAVE_LIBACL

#include <sys/acl.h>

#include <acl/libacl.h>

#include <map>

#include <string>

using std::string;

using std::map;

#endif

#ifndef __WIN32__

    char * get_user_name(uid_t uid) {

        struct passwd * pwentry = getpwuid(uid);

        return pwentry ? pwentry->pw_name : NULL;

    }

    char * get_group_name(gid_t gid) {

        struct group * grentry = getgrgid(gid);

        return grentry ? grentry->gr_name : NULL;

    }

#endif

    char * get_owner() {

	return get_user_name(statbuf.st_uid);

#ifdef HAVE_LIBACL

    int is_acl_readable(acl_entry_t acl_entry)

    {

        acl_permset_t permset;

        acl_get_permset(acl_entry, &permset);

        if (acl_get_perm(permset, ACL_READ) != 0)

            return 1;

        return 0;

    }

    void get_acls(map<string, int> *acl_users, map<string, int> *acl_groups) {

        void* ptr_acl;

        uid_t *acl_uid;

        gid_t *acl_gid;

        acl_t acl;

        acl_entry_t acl_entry;

        int entry_id=ACL_FIRST_ENTRY;

        map<string, int>::const_iterator user;

        acl = acl_get_file(path.c_str(), ACL_TYPE_ACCESS);

        while (acl_get_entry(acl, entry_id, &acl_entry) == 1) {

            acl_tag_t tag_type;

            if (acl_get_tag_type(acl_entry, &tag_type) < 0)

                break;

            ptr_acl = acl_get_qualifier(acl_entry);

            switch (tag_type) {

                case ACL_USER:

                    acl_uid = (uid_t*) ptr_acl;

                    if (!acl_uid)

                        break;

                    (*acl_users)[get_user_name(*acl_uid)] = is_acl_readable(acl_entry);

                case ACL_GROUP:

                    acl_gid = (uid_t*) ptr_acl;

                    if (!acl_gid)

                        break;

                    (*acl_groups)[get_group_name(*acl_gid)] = is_acl_readable(acl_entry);

            }

            entry_id = ACL_NEXT_ENTRY;

        }

        acl_free(ptr_acl);

        acl_free(acl);

    }

#endif

        ensure_statbuf_valid();

        return get_group_name(statbuf.st_gid);

        return NULL;