1/* $NetBSD: path-references.c,v 1.1.1.3 2019/12/22 12:34:06 skrll Exp $ */ 2 3// SPDX-License-Identifier: LGPL-2.1-or-later 4/* 5 * libfdt - Flat Device Tree manipulation 6 * Testcase for string references in dtc 7 * Copyright (C) 2006 David Gibson, IBM Corporation. 8 */ 9#include <stdlib.h> 10#include <stdio.h> 11#include <string.h> 12#include <stdint.h> 13 14#include <libfdt.h> 15 16#include "tests.h" 17#include "testdata.h" 18 19static void check_ref(const void *fdt, int node, const char *checkpath) 20{ 21 const char *p; 22 int len; 23 24 p = fdt_getprop(fdt, node, "ref", &len); 25 if (!p) 26 FAIL("fdt_getprop(%d, \"ref\"): %s", node, fdt_strerror(len)); 27 if (!streq(p, checkpath)) 28 FAIL("'ref' in node at %d has value \"%s\" instead of \"%s\"", 29 node, p, checkpath); 30 31 p = fdt_getprop(fdt, node, "lref", &len); 32 if (!p) 33 FAIL("fdt_getprop(%d, \"lref\"): %s", node, fdt_strerror(len)); 34 if (!streq(p, checkpath)) 35 FAIL("'lref' in node at %d has value \"%s\" instead of \"%s\"", 36 node, p, checkpath); 37} 38 39static void check_rref(const void *fdt) 40{ 41 const char *p; 42 int len; 43 44 /* Check reference to root node */ 45 p = fdt_getprop(fdt, 0, "rref", &len); 46 if (!p) 47 FAIL("fdt_getprop(0, \"rref\"): %s", fdt_strerror(len)); 48 if (!streq(p, "/")) 49 FAIL("'rref' in root node has value \"%s\" instead of \"/\"", 50 p); 51} 52 53int main(int argc, char *argv[]) 54{ 55 void *fdt; 56 const char *p; 57 int len, multilen; 58 int n1, n2, n3, n4; 59 60 test_init(argc, argv); 61 fdt = load_blob_arg(argc, argv); 62 63 n1 = fdt_path_offset(fdt, "/node1"); 64 if (n1 < 0) 65 FAIL("fdt_path_offset(/node1): %s", fdt_strerror(n1)); 66 n2 = fdt_path_offset(fdt, "/node2"); 67 if (n2 < 0) 68 FAIL("fdt_path_offset(/node2): %s", fdt_strerror(n2)); 69 70 check_ref(fdt, n1, "/node2"); 71 check_ref(fdt, n2, "/node1"); 72 73 /* Check multiple reference */ 74 multilen = strlen("/node1") + strlen("/node2") + 2; 75 p = fdt_getprop(fdt, 0, "multiref", &len); 76 if (!p) 77 FAIL("fdt_getprop(0, \"multiref\"): %s", fdt_strerror(len)); 78 if (len != multilen) 79 FAIL("multiref has wrong length, %d instead of %d", 80 len, multilen); 81 if ((!streq(p, "/node1") || !streq(p + strlen("/node1") + 1, "/node2"))) 82 FAIL("multiref has wrong value"); 83 84 /* Check reference to nested nodes with common prefix */ 85 n3 = fdt_path_offset(fdt, "/foo/baz"); 86 if (n3 < 0) 87 FAIL("fdt_path_offset(/foo/baz): %s", fdt_strerror(n3)); 88 n4 = fdt_path_offset(fdt, "/foobar/baz"); 89 if (n4 < 0) 90 FAIL("fdt_path_offset(/foobar/baz): %s", fdt_strerror(n4)); 91 check_ref(fdt, n3, "/foobar/baz"); 92 check_ref(fdt, n4, "/foo/baz"); 93 94 check_rref(fdt); 95 96 PASS(); 97} 98