File: BigFileCopy.cpp

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (31 lines) | stat: -rw-r--r-- 903 bytes parent folder | download | duplicates (17) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>

#include "FuzzerIO.h"

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  const char *FileName = "big-file.txt";
  FILE *f = fopen(FileName, "w");

  // This is the biggest file possible unless CopyFileToErr() uses Puts()
  fprintf(f, "%2147483646s", "2Gb-2");

  // This makes the file too big if CopyFileToErr() uses fprintf("%s", <file>)
  fprintf(f, "THIS LINE RESPONSIBLE FOR EXCEEDING 2Gb FILE SIZE\n");
  fclose(f);

  // Should now because CopyFileToErr() now uses Puts()
  fuzzer::CopyFileToErr(FileName);

  // File is >2Gb so clean up
  remove(FileName);

  return 0;
}