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77 lines
1.8 KiB
77 lines
1.8 KiB
// SPDX-License-Identifier: LGPL-2.1-or-later |
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/* |
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* libfdt - Flat Device Tree manipulation |
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* Testcase for fdt_parent_offset() |
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* Copyright (C) 2006 David Gibson, IBM Corporation. |
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*/ |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <stdint.h> |
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#include <libfdt.h> |
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#include "tests.h" |
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#include "testdata.h" |
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static int path_parent_len(const char *path) |
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{ |
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const char *p = strrchr(path, '/'); |
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if (!p) |
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TEST_BUG(); |
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if (p == path) |
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return 1; |
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else |
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return p - path; |
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} |
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static void check_path(struct fdt_header *fdt, const char *path) |
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{ |
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char *parentpath; |
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int nodeoffset, parentoffset, parentpathoffset, pathparentlen; |
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pathparentlen = path_parent_len(path); |
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parentpath = alloca(pathparentlen + 1); |
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strncpy(parentpath, path, pathparentlen); |
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parentpath[pathparentlen] = '\0'; |
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verbose_printf("Path: \"%s\"\tParent: \"%s\"\n", path, parentpath); |
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nodeoffset = fdt_path_offset(fdt, path); |
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if (nodeoffset < 0) |
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FAIL("fdt_path_offset(%s): %s", path, fdt_strerror(nodeoffset)); |
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parentpathoffset = fdt_path_offset(fdt, parentpath); |
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if (parentpathoffset < 0) |
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FAIL("fdt_path_offset(%s): %s", parentpath, |
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fdt_strerror(parentpathoffset)); |
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parentoffset = fdt_parent_offset(fdt, nodeoffset); |
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if (parentoffset < 0) |
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FAIL("fdt_parent_offset(): %s", fdt_strerror(parentoffset)); |
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if (parentoffset != parentpathoffset) |
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FAIL("fdt_parent_offset() returns %d instead of %d", |
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parentoffset, parentpathoffset); |
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} |
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int main(int argc, char *argv[]) |
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{ |
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void *fdt; |
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int err; |
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test_init(argc, argv); |
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fdt = load_blob_arg(argc, argv); |
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check_path(fdt, "/subnode@1"); |
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check_path(fdt, "/subnode@2"); |
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check_path(fdt, "/subnode@1/subsubnode"); |
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check_path(fdt, "/subnode@2/subsubnode@0"); |
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err = fdt_parent_offset(fdt, 0); |
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if (err != -FDT_ERR_NOTFOUND) |
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FAIL("fdt_parent_offset(/) returns %d instead of " |
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"-FDT_ERR_NOTFOUND", err); |
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PASS(); |
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}
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