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93 lines
2.6 KiB
93 lines
2.6 KiB
/* |
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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 <fdt.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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