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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/*
* Copyright 2012, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* The probability of a syscall failing from 0.0 to 1.0
*/
#define PROBABILITY 0.9
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
/* for various intercepted calls */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <fcntl.h>
/* For builds on glibc */
#define __USE_GNU
#include <dlfcn.h>
#include "interrupter.h"
static int probability = PROBABILITY * RAND_MAX;
static int maybe_interrupt() {
if (rand() < probability) {
return 1;
}
return 0;
}
DEFINE_INTERCEPT(read, ssize_t, int, void*, size_t);
DEFINE_INTERCEPT(write, ssize_t, int, const void*, size_t);
DEFINE_INTERCEPT(accept, int, int, struct sockaddr*, socklen_t*);
DEFINE_INTERCEPT(creat, int, const char*, mode_t);
|
