/* $NetBSD: check_path.c,v 1.1.1.1 2017/06/08 15:59:26 skrll Exp $ */ /* * libfdt - Flat Device Tree manipulation * Testcase for node existence * Copyright (C) 2016 Konsulko Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include "tests.h" #define CHECK(code) \ { \ int err = (code); \ if (err) \ FAIL(#code ": %s", fdt_strerror(err)); \ } /* 4k ought to be enough for anybody */ #define FDT_COPY_SIZE (4 * 1024) static void *open_dt(char *path) { void *dt, *copy; dt = load_blob(path); copy = xmalloc(FDT_COPY_SIZE); /* * Resize our DTs to 4k so that we have room to operate on */ CHECK(fdt_open_into(dt, copy, FDT_COPY_SIZE)); return copy; } int main(int argc, char *argv[]) { void *fdt_base; int fail_config, exists, check_exists; test_init(argc, argv); fail_config = 0; if (argc != 4) fail_config = 1; if (!fail_config) { if (!strcmp(argv[2], "exists")) check_exists = 1; else if (!strcmp(argv[2], "not-exists")) check_exists = 0; else fail_config = 1; } if (fail_config) CONFIG("Usage: %s <[exists|not-exists]> ", argv[0]); fdt_base = open_dt(argv[1]); exists = fdt_path_offset(fdt_base, argv[3]) >= 0; if (exists == check_exists) PASS(); else FAIL(); }