/* $NetBSD: path_offset.c,v 1.1.1.2 2017/06/08 15:59:27 skrll Exp $ */ /* * libfdt - Flat Device Tree manipulation * Testcase for fdt_path_offset() * Copyright (C) 2006 David Gibson, IBM Corporation. * * 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 #include #include #include "tests.h" #include "testdata.h" static int check_subnode(void *fdt, int parent, const char *name) { int offset; const struct fdt_node_header *nh; uint32_t tag; verbose_printf("Checking subnode \"%s\" of %d...", name, parent); offset = fdt_subnode_offset(fdt, parent, name); verbose_printf("offset %d...", offset); if (offset < 0) FAIL("fdt_subnode_offset(\"%s\"): %s", name, fdt_strerror(offset)); nh = fdt_offset_ptr(fdt, offset, sizeof(*nh)); verbose_printf("pointer %p\n", nh); if (! nh) FAIL("NULL retrieving subnode \"%s\"", name); tag = fdt32_to_cpu(nh->tag); if (tag != FDT_BEGIN_NODE) FAIL("Incorrect tag 0x%08x on property \"%s\"", tag, name); if (!nodename_eq(nh->name, name)) FAIL("Subnode name mismatch \"%s\" instead of \"%s\"", nh->name, name); return offset; } static void check_path_offset(void *fdt, char *path, int offset) { int rc; verbose_printf("Checking offset of \"%s\" is %d...\n", path, offset); rc = fdt_path_offset(fdt, path); if (rc < 0) FAIL("fdt_path_offset(\"%s\") failed: %s", path, fdt_strerror(rc)); if (rc != offset) FAIL("fdt_path_offset(\"%s\") returned incorrect offset" " %d instead of %d", path, rc, offset); } static void check_path_offset_namelen(void *fdt, char *path, int namelen, int offset) { int rc; verbose_printf("Checking offset of \"%s\" [first %d characters]" " is %d...\n", path, namelen, offset); rc = fdt_path_offset_namelen(fdt, path, namelen); if (rc == offset) return; if (rc < 0) FAIL("fdt_path_offset_namelen(\"%s\", %d) failed: %s", path, namelen, fdt_strerror(rc)); else FAIL("fdt_path_offset_namelen(\"%s\", %d) returned incorrect" " offset %d instead of %d", path, namelen, rc, offset); } int main(int argc, char *argv[]) { void *fdt; int subnode1_offset, subnode2_offset; int subsubnode1_offset, subsubnode2_offset, subsubnode2_offset2; test_init(argc, argv); fdt = load_blob_arg(argc, argv); check_path_offset(fdt, "/", 0); subnode1_offset = check_subnode(fdt, 0, "subnode@1"); subnode2_offset = check_subnode(fdt, 0, "subnode@2"); check_path_offset(fdt, "/subnode@1", subnode1_offset); check_path_offset(fdt, "/subnode@2", subnode2_offset); subsubnode1_offset = check_subnode(fdt, subnode1_offset, "subsubnode"); subsubnode2_offset = check_subnode(fdt, subnode2_offset, "subsubnode@0"); subsubnode2_offset2 = check_subnode(fdt, subnode2_offset, "subsubnode"); check_path_offset(fdt, "/subnode@1/subsubnode", subsubnode1_offset); check_path_offset(fdt, "/subnode@2/subsubnode@0", subsubnode2_offset); check_path_offset(fdt, "/subnode@2/subsubnode", subsubnode2_offset2); /* Test paths with extraneous separators */ check_path_offset(fdt, "//", 0); check_path_offset(fdt, "///", 0); check_path_offset(fdt, "//subnode@1", subnode1_offset); check_path_offset(fdt, "/subnode@1/", subnode1_offset); check_path_offset(fdt, "//subnode@1///", subnode1_offset); check_path_offset(fdt, "/subnode@2////subsubnode", subsubnode2_offset2); /* Test fdt_path_offset_namelen() */ check_path_offset_namelen(fdt, "/subnode@1", 1, 0); check_path_offset_namelen(fdt, "/subnode@1/subsubnode", 10, subnode1_offset); check_path_offset_namelen(fdt, "/subnode@1/subsubnode", 11, subnode1_offset); check_path_offset_namelen(fdt, "/subnode@2TRAILINGGARBAGE", 10, subnode2_offset); check_path_offset_namelen(fdt, "/subnode@2TRAILINGGARBAGE", 11, -FDT_ERR_NOTFOUND); check_path_offset_namelen(fdt, "/subnode@2/subsubnode@0/more", 23, subsubnode2_offset2); check_path_offset_namelen(fdt, "/subnode@2/subsubnode@0/more", 22, -FDT_ERR_NOTFOUND); check_path_offset_namelen(fdt, "/subnode@2/subsubnode@0/more", 24, subsubnode2_offset2); check_path_offset_namelen(fdt, "/subnode@2/subsubnode@0/more", 25, -FDT_ERR_NOTFOUND); PASS(); }