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Check that a file is not a directory before reading it into a MemoryBuffer.

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llvm-svn: 158841
This commit is contained in:
Kaelyn Uhrain 2012-06-20 20:21:33 +00:00
parent 8b17d495d7
commit 4b2667930b
1 changed files with 9 additions and 0 deletions
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9
lib/Support/MemoryBuffer.cpp
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@ -17,6 +17,7 @@
#include "llvm/Config/config.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/Errno.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/Program.h"
@ -214,6 +215,14 @@ error_code MemoryBuffer::getFile(const char *Filename,
OwningPtr<MemoryBuffer> &result,
int64_t FileSize,
bool RequiresNullTerminator) {
// First check that the "file" is not a directory
bool is_dir = false;
error_code err = sys::fs::is_directory(Filename, is_dir);
if (err)
return err;
else if (is_dir)
return make_error_code(errc::is_a_directory);
int OpenFlags = O_RDONLY;
#ifdef O_BINARY
OpenFlags |= O_BINARY; // Open input file in binary mode on win32.