diff options
Diffstat (limited to 'sandbox')
| -rw-r--r-- | sandbox/win/src/sandbox_nt_util.cc | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/sandbox/win/src/sandbox_nt_util.cc b/sandbox/win/src/sandbox_nt_util.cc index 613d485..ed1d908 100644 --- a/sandbox/win/src/sandbox_nt_util.cc +++ b/sandbox/win/src/sandbox_nt_util.cc @@ -525,14 +525,17 @@ bool IsSupportedRenameCall(FILE_RENAME_INFORMATION* file_info, DWORD length, if (file_info->RootDirectory) return false; + static const wchar_t kPathPrefix[] = { L'\\', L'?', L'?', L'\\'}; + // Check if it starts with \\??\\. We don't support relative paths. - if (file_info->FileNameLength < 4 || file_info->FileNameLength > kuint16max) + if (file_info->FileNameLength < sizeof(kPathPrefix) || + file_info->FileNameLength > kuint16max) return false; - if (file_info->FileName[0] != L'\\' || - file_info->FileName[1] != L'?' || - file_info->FileName[2] != L'?' || - file_info->FileName[3] != L'\\') + if (file_info->FileName[0] != kPathPrefix[0] || + file_info->FileName[1] != kPathPrefix[1] || + file_info->FileName[2] != kPathPrefix[2] || + file_info->FileName[3] != kPathPrefix[3]) return false; return true; |