netatalk acl check

gistfile1.c

etc/afpd/acls.c
1285    /* In case we are acting on a directory prepare a default acl. For files default_acl will be NULL.
1286     * If the directory already has a default acl it will be preserved.
1287     */
1288    EC_ZERO_LOG_ERR(lstat(name, &st), AFPERR_NOOBJ);
1289 
1290    if (S_ISDIR(st.st_mode)) {
1291        default_acl = acl_get_file(name, ACL_TYPE_DEFAULT);
1292 
1293        if (default_acl) {
1294            /* If default_acl is not empty then the dir has a default acl. */
1295            if (acl_get_entry(default_acl, ACL_FIRST_ENTRY, &entry) == 1)
1296                default_acl_flags = HAS_DEFAULT_ACL;
1297 
1298            acl_free(default_acl);
1299        }
1300        default_acl = acl_dup(access_acl);
1301     }
1302     /* adds the clients aces */
1303     EC_ZERO_ERR(map_aces_darwin_to_posix(daces, &default_acl, &access_acl, ace_count, &default_acl_flags), AFPERR_MISC);
1304 
1305     /* calcuate ACL mask */
1306     EC_ZERO_LOG_ERR(acl_calc_mask(&access_acl), AFPERR_MISC);
1307 
1308     /* is it ok? */
1309     EC_ZERO_LOG_ERR(acl_valid(access_acl), AFPERR_MISC);
1310 
1311     /* set it */
1312     EC_ZERO_LOG_ERR(acl_set_file(name, ACL_TYPE_ACCESS, access_acl), AFPERR_MISC);
1313     EC_ZERO_LOG_ERR(vol->vfs->vfs_acl(vol, name, ACL_TYPE_ACCESS, 0, access_acl), AFPERR_MISC);


#ifdef HAVE_POSIX_ACLS
static int RF_posix_acl(VFS_FUNC_ARGS_ACL)
{
    EC_INIT;
    static char buf[ MAXPATHLEN + 1];
    struct stat st;
    int len;

    if (stat(path, &st) == -1)
        EC_FAIL;



#ifdef HAVE_POSIX_ACLS
#define VFS_FUNC_ARGS_ACL const struct vol *vol, const char *path, acl_type_t type, int count, acl_t acl
#define VFS_FUNC_VARS_ACL vol, path, type, count, acl
#endif

#define EC_ZERO_LOG_ERR(a, b)                                           \
    do {                                                                \
        if ((a) != 0) {                                                 \
            LOG(log_error, logtype_default, "%s failed: %s", #a, strerror(errno)); \
            ret = (b);                                                  \
            goto cleanup;                                               \
        }                                                               \
    } while (0)