/*
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* libfdt - Flat Device Tree manipulation
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* Testcase for fdt_get_path()
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* Copyright (C) 2006 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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#define POISON ('\xff')
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static void check_path_buf(void *fdt, const char *path, int pathlen, int buflen)
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{
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int offset;
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char buf[buflen+1];
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int 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\": %s", path, fdt_strerror(offset));
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memset(buf, POISON, sizeof(buf)); /* poison the buffer */
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len = fdt_get_path(fdt, offset, buf, buflen);
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verbose_printf("get_path() %s -> %d -> %s\n", path, offset, buf);
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if (buflen <= pathlen) {
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if (len != -FDT_ERR_NOSPACE)
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FAIL("fdt_get_path([%d bytes]) returns %d with "
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"insufficient buffer space", buflen, len);
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} else {
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if (len < 0)
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FAIL("fdt_get_path([%d bytes]): %s", buflen,
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fdt_strerror(len));
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if (len != 0)
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FAIL("fdt_get_path([%d bytes]) returns %d "
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"instead of 0", buflen, len);
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if (strcmp(buf, path) != 0)
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FAIL("fdt_get_path([%d bytes]) returns \"%s\" "
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"instead of \"%s\"", buflen, buf, path);
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}
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if (buf[buflen] != POISON)
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FAIL("fdt_get_path([%d bytes]) overran buffer", buflen);
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}
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static void check_path(void *fdt, const char *path)
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{
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int pathlen = strlen(path);
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check_path_buf(fdt, path, pathlen, 1024);
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check_path_buf(fdt, path, pathlen, pathlen+1);
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check_path_buf(fdt, path, pathlen, pathlen);
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check_path_buf(fdt, path, pathlen, 0);
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check_path_buf(fdt, path, pathlen, 2);
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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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test_init(argc, argv);
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fdt = load_blob_arg(argc, argv);
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check_path(fdt, "/");
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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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PASS();
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}
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