Refs #10260 OpenBSD support #25327

runtime/bin/directory_openbsd.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
-#if defined(TARGET_OS_MACOS)
+#if defined(TARGET_OS_OPENBSD)
 
 #include "bin/directory.h"
 
 #include <dirent.h>  // NOLINT
 #include <errno.h>  // NOLINT
 #include <string.h>  // NOLINT
 #include <sys/param.h>  // NOLINT
 #include <sys/stat.h>  // NOLINT
 #include <unistd.h>  // NOLINT
 
 #include "bin/file.h"
 #include "bin/platform.h"
 
 #include "platform/signal_blocker.h"
 
 
 namespace dart {
 namespace bin {
 
 
 PathBuffer::PathBuffer() : length_(0) {
   data_ = calloc(PATH_MAX + 1,  sizeof(char));  // NOLINT
 }
 
+
 bool PathBuffer::AddW(const wchar_t* name) {
   UNREACHABLE();
   return false;
 }
 
+
 char* PathBuffer::AsString() const {
   return reinterpret_cast<char*>(data_);
 }
 
+
 wchar_t* PathBuffer::AsStringW() const {
   UNREACHABLE();
   return NULL;
 }
 
+
 bool PathBuffer::Add(const char* name) {
   char* data = AsString();
   int written = snprintf(data + length_,
                          PATH_MAX - length_,
                          "%s",
                          name);
   data[PATH_MAX] = '\0';
   if (written <= PATH_MAX - length_ &&
       written >= 0 &&
-      static_cast<size_t>(written) == strlen(name)) {
+      static_cast<size_t>(written) == strnlen(name, PATH_MAX + 1)) {
     length_ += written;
     return true;
   } else {
     errno = ENAMETOOLONG;
     return false;
   }
 }
 
+
 void PathBuffer::Reset(int new_length) {
   length_ = new_length;
   AsString()[length_] = '\0';
 }
 
 
 // A linked list of symbolic links, with their unique file system identifiers.
 // These are scanned to detect loops while doing a recursive directory listing.
 struct LinkList {
   dev_t dev;
@@ skipping 351 matching lines @@
 
 bool Directory::Rename(const char* path, const char* new_path) {
   ExistsResult exists = Exists(path);
   if (exists != EXISTS) return false;
   return (NO_RETRY_EXPECTED(rename(path, new_path)) == 0);
 }
 
 }  // namespace bin
 }  // namespace dart
 
-#endif  // defined(TARGET_OS_MACOS)
+#endif  // defined(TARGET_OS_OPENBSD)