File: readv.cpp

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-20
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 1,496,436 kB
  • sloc: cpp: 5,593,990; ansic: 986,873; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,547; xml: 953; cs: 573; fortran: 567
file content (32 lines) | stat: -rw-r--r-- 687 bytes parent folder | download | duplicates (44) 
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
32
 
// RUN: %clangxx_asan -O0 %s -o %t && %run %t
// RUN: %clangxx_asan -O0 %s -DPOSITIVE -o %t && not %run %t 2>&1 | FileCheck %s

// Test the readv() interceptor.

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/uio.h>
#include <time.h>

int main() {
  char buf[2011];
  struct iovec iov[2];
#ifdef POSITIVE
  char * volatile buf_ = buf;
  iov[0].iov_base = buf_ - 1;
#else
  iov[0].iov_base = buf + 1;
#endif
  iov[0].iov_len = 5;
  iov[1].iov_base = buf + 10;
  iov[1].iov_len = 2000;
  int fd = open("/etc/hosts", O_RDONLY);
  assert(fd > 0);
  readv(fd, iov, 2);
  // CHECK: WRITE of size 5 at
  close(fd);
  return 0;
}