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      1 /*
      2  * libfdt - Flat Device Tree manipulation
      3  *	Testcase for fdt_set_name()
      4  * Copyright (C) 2006 David Gibson, IBM Corporation.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Lesser General Public License
      8  * as published by the Free Software Foundation; either version 2.1 of
      9  * the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful, but
     12  * WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Lesser General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Lesser General Public
     17  * License along with this library; if not, write to the Free Software
     18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
     19  */
     20 #include <stdlib.h>
     21 #include <stdio.h>
     22 #include <string.h>
     23 #include <stdint.h>
     24 
     25 #include <libfdt.h>
     26 
     27 #include "tests.h"
     28 #include "testdata.h"
     29 
     30 static void check_set_name(void *fdt, const char *path, const char *newname)
     31 {
     32 	int offset;
     33 	const char *getname, *oldname;
     34 	int len, err;
     35 
     36 	oldname = strrchr(path, '/');
     37 	if (!oldname)
     38 		TEST_BUG();
     39 	oldname += 1;
     40 
     41 	offset = fdt_path_offset(fdt, path);
     42 	if (offset < 0)
     43 		FAIL("Couldn't find %s", path);
     44 
     45 	getname = fdt_get_name(fdt, offset, &len);
     46 	verbose_printf("fdt_get_name(%d) returns \"%s\" (len=%d)\n",
     47 		       offset, getname, len);
     48 	if (!getname)
     49 		FAIL("fdt_get_name(%d): %s", offset, fdt_strerror(len));
     50 
     51 	if (strcmp(getname, oldname) != 0)
     52 		FAIL("fdt_get_name(%s) returned \"%s\" instead of \"%s\"",
     53 		     path, getname, oldname);
     54 
     55 	if (len != strlen(getname))
     56 		FAIL("fdt_get_name(%s) returned length %d instead of %zd",
     57 		     path, len, strlen(getname));
     58 
     59 	err = fdt_set_name(fdt, offset, newname);
     60 	if (err)
     61 		FAIL("fdt_set_name(%d, \"%s\"): %s", offset, newname,
     62 		     fdt_strerror(err));
     63 
     64 	getname = fdt_get_name(fdt, offset, &len);
     65 	if (!getname)
     66 		FAIL("fdt_get_name(%d): %s", offset, fdt_strerror(len));
     67 
     68 	if (strcmp(getname, newname) != 0)
     69 		FAIL("fdt_get_name(%s) returned \"%s\" instead of \"%s\"",
     70 		     path, getname, newname);
     71 
     72 	if (len != strlen(getname))
     73 		FAIL("fdt_get_name(%s) returned length %d instead of %zd",
     74 		     path, len, strlen(getname));
     75 }
     76 
     77 int main(int argc, char *argv[])
     78 {
     79 	void *fdt;
     80 
     81 	test_init(argc, argv);
     82 	fdt = load_blob_arg(argc, argv);
     83 	fdt = open_blob_rw(fdt);
     84 
     85 	check_set_name(fdt, "/subnode@1", "subnode@17");
     86 	check_set_name(fdt, "/subnode@2/subsubnode@0", "fred@0");
     87 	check_set_name(fdt, "/subnode@17/subsubnode", "something@0");
     88 
     89 	PASS();
     90 }
     91