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68 lines
2.0 KiB
68 lines
2.0 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 misbehaviour on a truncated string |
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* Copyright (C) 2018 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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int main(int argc, char *argv[]) |
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{ |
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void *fdt = &truncated_string; |
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const struct fdt_property *good, *bad; |
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int off, len; |
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const char *name; |
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test_init(argc, argv); |
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vg_prepare_blob(fdt, fdt_totalsize(fdt)); |
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off = fdt_first_property_offset(fdt, 0); |
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good = fdt_get_property_by_offset(fdt, off, NULL); |
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off = fdt_next_property_offset(fdt, off); |
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bad = fdt_get_property_by_offset(fdt, off, NULL); |
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if (fdt32_to_cpu(good->len) != 0) |
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FAIL("Unexpected length for good property"); |
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name = fdt_get_string(fdt, fdt32_to_cpu(good->nameoff), &len); |
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if (!name) |
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FAIL("fdt_get_string() failed on good property: %s", |
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fdt_strerror(len)); |
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if (len != 4) |
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FAIL("fdt_get_string() returned length %d (not 4) on good property", |
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len); |
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if (!streq(name, "good")) |
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FAIL("fdt_get_string() returned \"%s\" (not \"good\") on good property", |
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name); |
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if (fdt32_to_cpu(bad->len) != 0) |
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FAIL("Unexpected length for bad property\n"); |
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name = fdt_get_string(fdt, fdt32_to_cpu(bad->nameoff), &len); |
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if (name) |
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FAIL("fdt_get_string() succeeded incorrectly on bad property"); |
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else if (len != -FDT_ERR_TRUNCATED) |
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FAIL("fdt_get_string() gave unexpected error on bad property: %s", |
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fdt_strerror(len)); |
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/* Make sure the 'good' property breaks correctly if we |
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* truncate the strings section */ |
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fdt_set_size_dt_strings(fdt, fdt32_to_cpu(good->nameoff) + 4); |
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name = fdt_get_string(fdt, fdt32_to_cpu(good->nameoff), &len); |
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if (name) |
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FAIL("fdt_get_string() succeeded incorrectly on mangled property"); |
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else if (len != -FDT_ERR_TRUNCATED) |
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FAIL("fdt_get_string() gave unexpected error on mangled property: %s", |
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fdt_strerror(len)); |
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PASS(); |
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}
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