1// Licensed to the .NET Foundation under one or more agreements.
2// The .NET Foundation licenses this file to you under the MIT license.
3// See the LICENSE file in the project root for more information.
4
5// Contains wrappers for functions whose required headers conflict with the PAL
6
7#include <sys/file.h>
8#include <sys/stat.h>
9#include <sys/types.h>
10
11#include <fcntl.h>
12#include <signal.h>
13#include <stdio.h>
14#include <string.h>
15#include <unistd.h>
16
17#define _countof(a) (sizeof(a) / sizeof(a[0]))
18
19#undef PAGE_SIZE
20#define PAGE_SIZE (4096)
21
22auto test_strcpy = strcpy;
23auto test_strcmp = strcmp;
24auto test_strlen = strlen;
25auto test_sprintf = sprintf;
26auto test_sscanf = sscanf;
27auto test_close = close;
28auto test_unlink = unlink;
29
30unsigned int test_getpid()
31{
32 return getpid();
33}
34
35int test_kill(unsigned int pid)
36{
37 return kill(pid, SIGKILL);
38}
39
40bool TestFileExists(const char *path)
41{
42 int fd = open(path, O_RDWR);
43 if (fd == -1)
44 return false;
45 close(fd);
46 return true;
47}
48
49bool WriteHeaderInfo(const char *path, char sharedMemoryType, char version, int *fdRef)
50{
51 int fd = open(path, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
52 if (fd == -1)
53 return false;
54 *fdRef = fd;
55 if (ftruncate(fd, PAGE_SIZE) != 0)
56 return false;
57 if (lseek(fd, 0, SEEK_SET) != 0)
58 return false;
59
60 // See SharedMemorySharedDataHeader for format
61 char buffer[] = {sharedMemoryType, version};
62 if (write(fd, buffer, _countof(buffer)) != _countof(buffer))
63 return false;
64
65 return flock(fd, LOCK_SH | LOCK_NB) == 0;
66}
67