From 202eaeb2725da948c0dabd87718c3b56368c44eb Mon Sep 17 00:00:00 2001 From: Reid Spencer Date: Tue, 9 Nov 2004 20:27:23 +0000 Subject: Fix isBytecodeFile to correctly recognized compressed bytecode too. llvm-svn: 17655 --- llvm/lib/System/Win32/Path.cpp | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'llvm/lib/System/Win32/Path.cpp') diff --git a/llvm/lib/System/Win32/Path.cpp b/llvm/lib/System/Win32/Path.cpp index e22b0354b7e..08a3d402e88 100644 --- a/llvm/lib/System/Win32/Path.cpp +++ b/llvm/lib/System/Win32/Path.cpp @@ -242,10 +242,13 @@ bool Path::hasMagicNumber(const std::string &Magic) const { bool Path::isBytecodeFile() const { - if (readable()) { - return hasMagicNumber("llvm"); - } - return false; + char buffer[ 4]; + buffer[0] = 0; + std::ifstream f(path.c_str()); + f.read(buffer, 4); + if (f.bad()) + ThrowErrno("can't read file signature"); + return 0 == memcmp(buffer,"llvc",4) || 0 == memcmp(buffer,"llvm",4); } bool -- cgit v1.2.3