c4ffc05574
Replace instances in tests of mostly LGPL-2.1 license boilerplate with SPDX tags. Signed-off-by: Rob Herring <robh@kernel.org> Message-Id: <20190620211944.9378-5-robh@kernel.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
142 lines
4 KiB
C
142 lines
4 KiB
C
// 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 string handling
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* Copyright (C) 2015 NVIDIA 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 void check_expected_failure(const void *fdt, const char *path,
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const char *property)
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{
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int offset, err;
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offset = fdt_path_offset(fdt, "/");
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if (offset < 0)
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FAIL("Couldn't find path %s", path);
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err = fdt_stringlist_count(fdt, offset, "#address-cells");
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if (err != -FDT_ERR_BADVALUE)
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FAIL("unexpectedly succeeded in parsing #address-cells\n");
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err = fdt_stringlist_search(fdt, offset, "#address-cells", "foo");
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if (err != -FDT_ERR_BADVALUE)
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FAIL("found string in #address-cells: %d\n", err);
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/*
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* Note that the #address-cells property contains a small 32-bit
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* unsigned integer, hence some bytes will be zero, and searching for
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* the empty string will succeed.
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*
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* The reason for this oddity is that the function will exit when the
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* first occurrence of the string is found, but in order to determine
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* that the property does not contain a valid string list it would
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* need to process the whole value.
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*/
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err = fdt_stringlist_search(fdt, offset, "#address-cells", "");
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if (err != 0)
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FAIL("empty string not found in #address-cells: %d\n", err);
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/*
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* fdt_getprop_string() can successfully extract strings from
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* non-string properties. This is because it doesn't
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* necessarily parse the whole property value, which would be
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* necessary for it to determine if a valid string or string
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* list is present.
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*/
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}
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static void check_string_count(const void *fdt, const char *path,
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const char *property, int count)
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{
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int offset, err;
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offset = fdt_path_offset(fdt, path);
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if (offset < 0)
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FAIL("Couldn't find path %s", path);
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err = fdt_stringlist_count(fdt, offset, property);
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if (err < 0)
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FAIL("Couldn't count strings in property %s of node %s: %d\n",
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property, path, err);
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if (err != count)
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FAIL("String count for property %s of node %s is %d instead of %d\n",
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path, property, err, count);
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}
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static void check_string_index(const void *fdt, const char *path,
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const char *property, const char *string,
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int idx)
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{
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int offset, err;
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offset = fdt_path_offset(fdt, path);
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if (offset < 0)
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FAIL("Couldn't find path %s", path);
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err = fdt_stringlist_search(fdt, offset, property, string);
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if (err != idx)
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FAIL("Index of %s in property %s of node %s is %d, expected %d\n",
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string, property, path, err, idx);
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}
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static void check_string(const void *fdt, const char *path,
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const char *property, int idx,
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const char *string)
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{
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const char *result;
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int offset, len;
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offset = fdt_path_offset(fdt, path);
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if (offset < 0)
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FAIL("Couldn't find path %s", path);
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result = fdt_stringlist_get(fdt, offset, property, idx, &len);
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if (!result)
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FAIL("Couldn't extract string %d from property %s of node %s: %d\n",
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idx, property, path, len);
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if (strcmp(string, result) != 0)
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FAIL("String %d in property %s of node %s is %s, expected %s\n",
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idx, property, path, result, string);
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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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if (argc != 2)
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CONFIG("Usage: %s <dtb file>\n", argv[0]);
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test_init(argc, argv);
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fdt = load_blob(argv[1]);
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check_expected_failure(fdt, "/", "#address-cells");
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check_expected_failure(fdt, "/", "#size-cells");
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check_string_count(fdt, "/", "compatible", 1);
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check_string_count(fdt, "/device", "compatible", 2);
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check_string_count(fdt, "/device", "big-endian", 0);
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check_string_index(fdt, "/", "compatible", "test-strings", 0);
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check_string_index(fdt, "/device", "compatible", "foo", 0);
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check_string_index(fdt, "/device", "compatible", "bar", 1);
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check_string_index(fdt, "/device", "big-endian", "baz", -1);
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check_string(fdt, "/", "compatible", 0, "test-strings");
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check_string(fdt, "/device", "compatible", 0, "foo");
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check_string(fdt, "/device", "compatible", 1, "bar");
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PASS();
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}
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