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Check that a file is not a directory before reading it into a MemoryBuffer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158841 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -17,6 +17,7 @@
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#include "llvm/Config/config.h"
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/Errno.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Process.h"
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#include "llvm/Support/Program.h"
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@ -214,6 +215,14 @@ error_code MemoryBuffer::getFile(const char *Filename,
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OwningPtr<MemoryBuffer> &result,
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int64_t FileSize,
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bool RequiresNullTerminator) {
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// First check that the "file" is not a directory
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bool is_dir = false;
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error_code err = sys::fs::is_directory(Filename, is_dir);
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if (err)
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return err;
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else if (is_dir)
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return make_error_code(errc::is_a_directory);
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int OpenFlags = O_RDONLY;
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#ifdef O_BINARY
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OpenFlags |= O_BINARY; // Open input file in binary mode on win32.
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