c4ffc05574
Replace instances in tests of mostly LGPL-2.1 license boilerplate with SPDX tags. Signed-off-by: Rob Herring <robh@kernel.org> Message-Id: <20190620211944.9378-5-robh@kernel.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
132 lines
3.1 KiB
C
132 lines
3.1 KiB
C
// SPDX-License-Identifier: LGPL-2.1-or-later
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/*
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* libfdt - Flat Device Tree manipulation
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* Testcase for fdt_supernode_atdepth_offset()
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* Copyright (C) 2006 David Gibson, IBM Corporation.
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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 <libfdt.h>
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#include "tests.h"
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#include "testdata.h"
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static int path_depth(const char *path)
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{
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const char *p;
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int depth = 0;
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if (path[0] != '/')
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TEST_BUG();
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if (strcmp(path, "/") == 0)
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return 0;
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for (p = path; *p; p++)
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if (*p == '/')
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depth++;
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/* Special case for path == "/" */
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if (p == (path + 1))
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return 0;
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else
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return depth;
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}
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static int path_prefix(const char *path, int depth)
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{
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const char *p;
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int i;
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if (path[0] != '/')
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TEST_BUG();
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if (depth == 0)
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return 1;
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p = path;
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for (i = 0; i < depth; i++)
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p = p+1 + strcspn(p+1, "/");
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return p - path;
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}
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static void check_supernode_atdepth(struct fdt_header *fdt, const char *path,
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int depth)
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{
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int pdepth = path_depth(path);
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char *superpath;
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int nodeoffset, supernodeoffset, superpathoffset, pathprefixlen;
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int nodedepth;
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pathprefixlen = path_prefix(path, depth);
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superpath = alloca(pathprefixlen + 1);
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strncpy(superpath, path, pathprefixlen);
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superpath[pathprefixlen] = '\0';
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verbose_printf("Path %s (%d), depth %d, supernode is %s\n",
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path, pdepth, depth, superpath);
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nodeoffset = fdt_path_offset(fdt, path);
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if (nodeoffset < 0)
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FAIL("fdt_path_offset(%s): %s", path, fdt_strerror(nodeoffset));
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superpathoffset = fdt_path_offset(fdt, superpath);
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if (superpathoffset < 0)
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FAIL("fdt_path_offset(%s): %s", superpath,
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fdt_strerror(superpathoffset));
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supernodeoffset = fdt_supernode_atdepth_offset(fdt, nodeoffset,
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depth, &nodedepth);
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if (supernodeoffset < 0)
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FAIL("fdt_supernode_atdepth_offset(): %s",
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fdt_strerror(supernodeoffset));
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if (supernodeoffset != superpathoffset)
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FAIL("fdt_supernode_atdepth_offset() returns %d instead of %d",
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supernodeoffset, superpathoffset);
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if (nodedepth != pdepth)
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FAIL("fdt_supernode_atdept_offset() returns node depth %d "
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"instead of %d", nodedepth, pdepth);
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}
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static void check_supernode_overdepth(struct fdt_header *fdt, const char *path)
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{
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int pdepth = path_depth(path);
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int nodeoffset, err;
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nodeoffset = fdt_path_offset(fdt, path);
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if (nodeoffset < 0)
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FAIL("fdt_path_offset(%s): %s", path, fdt_strerror(nodeoffset));
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err = fdt_supernode_atdepth_offset(fdt, nodeoffset, pdepth + 1, NULL);
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if (err != -FDT_ERR_NOTFOUND)
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FAIL("fdt_supernode_atdept_offset(%s, %d) returns %d instead "
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"of FDT_ERR_NOTFOUND", path, pdepth+1, err);
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}
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static void check_path(struct fdt_header *fdt, const char *path)
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{
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int i;
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for (i = 0; i <= path_depth(path); i++)
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check_supernode_atdepth(fdt, path, i);
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check_supernode_overdepth(fdt, path);
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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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