blob: 4db61a56da82c7a52afb19e9d6663f79767b5822 [file] [log] [blame]
// SPDX-License-Identifier: LGPL-2.1-or-later
/*
* libfdt - Flat Device Tree manipulation
* Testcase for string references in dtc
* Copyright (C) 2006 David Gibson, IBM Corporation.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <libfdt.h>
#include "tests.h"
#include "testdata.h"
static void check_ref(const void *fdt, int node, const char *checkpath)
{
const char *p;
int len;
p = fdt_getprop(fdt, node, "ref", &len);
if (!p)
FAIL("fdt_getprop(%d, \"ref\"): %s", node, fdt_strerror(len));
if (!streq(p, checkpath))
FAIL("'ref' in node at %d has value \"%s\" instead of \"%s\"",
node, p, checkpath);
p = fdt_getprop(fdt, node, "lref", &len);
if (!p)
FAIL("fdt_getprop(%d, \"lref\"): %s", node, fdt_strerror(len));
if (!streq(p, checkpath))
FAIL("'lref' in node at %d has value \"%s\" instead of \"%s\"",
node, p, checkpath);
}
static void check_rref(const void *fdt)
{
const char *p;
int len;
/* Check reference to root node */
p = fdt_getprop(fdt, 0, "rref", &len);
if (!p)
FAIL("fdt_getprop(0, \"rref\"): %s", fdt_strerror(len));
if (!streq(p, "/"))
FAIL("'rref' in root node has value \"%s\" instead of \"/\"",
p);
}
int main(int argc, char *argv[])
{
void *fdt;
const char *p;
int len, multilen;
int n1, n2, n3, n4;
test_init(argc, argv);
fdt = load_blob_arg(argc, argv);
n1 = fdt_path_offset(fdt, "/node1");
if (n1 < 0)
FAIL("fdt_path_offset(/node1): %s", fdt_strerror(n1));
n2 = fdt_path_offset(fdt, "/node2");
if (n2 < 0)
FAIL("fdt_path_offset(/node2): %s", fdt_strerror(n2));
check_ref(fdt, n1, "/node2");
check_ref(fdt, n2, "/node1");
/* Check multiple reference */
multilen = strlen("/node1") + strlen("/node2") + 2;
p = fdt_getprop(fdt, 0, "multiref", &len);
if (!p)
FAIL("fdt_getprop(0, \"multiref\"): %s", fdt_strerror(len));
if (len != multilen)
FAIL("multiref has wrong length, %d instead of %d",
len, multilen);
if ((!streq(p, "/node1") || !streq(p + strlen("/node1") + 1, "/node2")))
FAIL("multiref has wrong value");
/* Check reference to nested nodes with common prefix */
n3 = fdt_path_offset(fdt, "/foo/baz");
if (n3 < 0)
FAIL("fdt_path_offset(/foo/baz): %s", fdt_strerror(n3));
n4 = fdt_path_offset(fdt, "/foobar/baz");
if (n4 < 0)
FAIL("fdt_path_offset(/foobar/baz): %s", fdt_strerror(n4));
check_ref(fdt, n3, "/foobar/baz");
check_ref(fdt, n4, "/foo/baz");
check_rref(fdt);
PASS();
}