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libfdt: Add fdt_get_name() to retrieve a node's name

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This patch adds a new fdt_get_name() function to libfdt which will
return a node's name string (including unit address, if any).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson 2007-08-30 14:54:04 +10:00 • committed by Jon Loeliger
parent bd2ae2f41c
commit 9d26eabdc6
5 changed files with 112 additions and 1 deletions
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83
tests/get_name.c Normal file
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/*
* libfdt - Flat Device Tree manipulation
* Testcase for fdt_get_name()
* Copyright (C) 2006 David Gibson, IBM Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <fdt.h>
#include <libfdt.h>
#include "tests.h"
#include "testdata.h"
void check_name(void *fdt, const char *path)
{
int offset;
const char *getname, *getname2, *checkname;
int len;
checkname = strrchr(path, '/');
if (!checkname)
TEST_BUG();
checkname += 1;
offset = fdt_path_offset(fdt, path);
if (offset < 0)
FAIL("Couldn't find %s", path);
getname = fdt_get_name(fdt, offset, &len);
verbose_printf("fdt_get_name(%d) returns \"%s\" (len=%d)\n",
offset, getname, len);
if (!getname)
FAIL("fdt_get_name(%d): %s", offset, fdt_strerror(len));
if (strcmp(getname, checkname) != 0)
FAIL("fdt_get_name(%s) returned \"%s\" instead of \"%s\"",
path, getname, checkname);
if (len != strlen(getname))
FAIL("fdt_get_name(%s) returned length %d instead of %d",
path, len, strlen(getname));
/* Now check that it doesn't break if we omit len */
getname2 = fdt_get_name(fdt, offset, NULL);
if (!getname2)
FAIL("fdt_get_name(%d, NULL) failed", offset);
if (strcmp(getname2, getname) != 0)
FAIL("fdt_get_name(%d, NULL) returned \"%s\" instead of \"%s\"",
offset, getname2, getname);
}
int main(int argc, char *argv[])
{
void *fdt;
test_init(argc, argv);
fdt = load_blob_arg(argc, argv);
check_name(fdt, "/");
check_name(fdt, "/subnode1");
check_name(fdt, "/subnode2");
check_name(fdt, "/subnode1/subsubnode");
check_name(fdt, "/subnode2/subsubnode");
PASS();
}