4b8fcc3d01
This new function implements a complete and thorough check of an fdt blob's structure. Given a buffer containing an fdt, it should return 0 only if the fdt within is structurally sound in all regards. It doesn't check anything about the blob's contents (i.e. the actual values of the nodes and properties), of course. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Tested-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Simon Glass <sjg@chromium.org>
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/*
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* libfdt - Flat Device Tree manipulation
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* Tests if two given dtbs are structurally equal (including order)
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* Copyright (C) 2007 David Gibson, IBM Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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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 expect_bad; /* = 0 */
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int main(int argc, char *argv[])
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{
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const char *filename;
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char *fdt;
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size_t len;
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int err;
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test_init(argc, argv);
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if ((argc != 2)
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&& ((argc != 3) || !streq(argv[1], "-n")))
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CONFIG("Usage: %s [-n] <dtb file>", argv[0]);
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if (argc == 3)
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expect_bad = 1;
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filename = argv[argc-1];
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err = utilfdt_read_err(filename, &fdt, &len);
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if (err)
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CONFIG("Couldn't open blob from \"%s\": %s",
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filename, strerror(err));
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vg_prepare_blob(fdt, len);
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err = fdt_check_full(fdt, len);
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if (expect_bad && (err == 0))
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FAIL("fdt_check_full() succeeded unexpectedly");
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else if (!expect_bad && (err != 0))
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FAIL("fdt_check_full() failed: %s", fdt_strerror(err));
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PASS();
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}
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