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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/dtc/tests/get_path.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/dtc/tests/get_path.c')
-rw-r--r--qemu/dtc/tests/get_path.c92
1 files changed, 92 insertions, 0 deletions
diff --git a/qemu/dtc/tests/get_path.c b/qemu/dtc/tests/get_path.c
new file mode 100644
index 000000000..735297659
--- /dev/null
+++ b/qemu/dtc/tests/get_path.c
@@ -0,0 +1,92 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase for fdt_get_path()
+ * 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 <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+#define POISON ('\xff')
+
+static void check_path_buf(void *fdt, const char *path, int pathlen, int buflen)
+{
+ int offset;
+ char buf[buflen+1];
+ int len;
+
+ offset = fdt_path_offset(fdt, path);
+ if (offset < 0)
+ FAIL("Couldn't find path \"%s\": %s", path, fdt_strerror(offset));
+
+ memset(buf, POISON, sizeof(buf)); /* poison the buffer */
+
+ len = fdt_get_path(fdt, offset, buf, buflen);
+ verbose_printf("get_path() %s -> %d -> %s\n", path, offset, buf);
+
+ if (buflen <= pathlen) {
+ if (len != -FDT_ERR_NOSPACE)
+ FAIL("fdt_get_path([%d bytes]) returns %d with "
+ "insufficient buffer space", buflen, len);
+ } else {
+ if (len < 0)
+ FAIL("fdt_get_path([%d bytes]): %s", buflen,
+ fdt_strerror(len));
+ if (len != 0)
+ FAIL("fdt_get_path([%d bytes]) returns %d "
+ "instead of 0", buflen, len);
+ if (strcmp(buf, path) != 0)
+ FAIL("fdt_get_path([%d bytes]) returns \"%s\" "
+ "instead of \"%s\"", buflen, buf, path);
+ }
+
+ if (buf[buflen] != POISON)
+ FAIL("fdt_get_path([%d bytes]) overran buffer", buflen);
+}
+
+static void check_path(void *fdt, const char *path)
+{
+ int pathlen = strlen(path);
+
+ check_path_buf(fdt, path, pathlen, 1024);
+ check_path_buf(fdt, path, pathlen, pathlen+1);
+ check_path_buf(fdt, path, pathlen, pathlen);
+ check_path_buf(fdt, path, pathlen, 0);
+ check_path_buf(fdt, path, pathlen, 2);
+}
+
+int main(int argc, char *argv[])
+{
+ void *fdt;
+
+ test_init(argc, argv);
+ fdt = load_blob_arg(argc, argv);
+
+ check_path(fdt, "/");
+ check_path(fdt, "/subnode@1");
+ check_path(fdt, "/subnode@2");
+ check_path(fdt, "/subnode@1/subsubnode");
+ check_path(fdt, "/subnode@2/subsubnode@0");
+
+ PASS();
+}