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      1 //===- FuzzerIO.h - Internal header for IO utils ----------------*- C++ -* ===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 // IO interface.
     10 //===----------------------------------------------------------------------===//
     11 
     12 #ifndef LLVM_FUZZER_IO_H
     13 #define LLVM_FUZZER_IO_H
     14 
     15 #include "FuzzerDefs.h"
     16 
     17 namespace fuzzer {
     18 
     19 long GetEpoch(const std::string &Path);
     20 
     21 Unit FileToVector(const std::string &Path, size_t MaxSize = 0,
     22                   bool ExitOnError = true);
     23 
     24 std::string FileToString(const std::string &Path);
     25 
     26 void CopyFileToErr(const std::string &Path);
     27 
     28 void WriteToFile(const Unit &U, const std::string &Path);
     29 
     30 void ReadDirToVectorOfUnits(const char *Path, std::vector<Unit> *V,
     31                             long *Epoch, size_t MaxSize, bool ExitOnError);
     32 
     33 // Returns "Dir/FileName" or equivalent for the current OS.
     34 std::string DirPlusFile(const std::string &DirPath,
     35                         const std::string &FileName);
     36 
     37 // Returns the name of the dir, similar to the 'dirname' utility.
     38 std::string DirName(const std::string &FileName);
     39 
     40 // Returns path to a TmpDir.
     41 std::string TmpDir();
     42 
     43 bool IsInterestingCoverageFile(const std::string &FileName);
     44 
     45 void DupAndCloseStderr();
     46 
     47 void CloseStdout();
     48 
     49 void Printf(const char *Fmt, ...);
     50 
     51 // Print using raw syscalls, useful when printing at early init stages.
     52 void RawPrint(const char *Str);
     53 
     54 // Platform specific functions:
     55 bool IsFile(const std::string &Path);
     56 
     57 void ListFilesInDirRecursive(const std::string &Dir, long *Epoch,
     58                              std::vector<std::string> *V, bool TopDir);
     59 
     60 char GetSeparator();
     61 
     62 FILE* OpenFile(int Fd, const char *Mode);
     63 
     64 int CloseFile(int Fd);
     65 
     66 int DuplicateFile(int Fd);
     67 
     68 void RemoveFile(const std::string &Path);
     69 
     70 void DiscardOutput(int Fd);
     71 
     72 intptr_t GetHandleFromFd(int fd);
     73 
     74 }  // namespace fuzzer
     75 
     76 #endif  // LLVM_FUZZER_IO_H
     77