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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
/*
* iscygpty.c -- part of ptycheck
* https://github.com/k-takata/ptycheck
*
* Copyright (c) 2015-2017 K.Takata
*
* You can redistribute it and/or modify it under the terms of either
* the MIT license (as described below) or the Vim license.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifdef _WIN32
#include <ctype.h>
#include <io.h>
#include <wchar.h>
#include <windows.h>
#ifdef USE_FILEEXTD
// VC 7.1 or earlier doesn't support SAL.
# if !defined(_MSC_VER) || (_MSC_VER < 1400)
# define __out
# define __in
# define __in_opt
# endif
// Win32 FileID API Library:
// http://www.microsoft.com/en-us/download/details.aspx?id=22599
// Needed for WinXP.
# include <fileextd.h>
#else // USE_FILEEXTD
// VC 8 or earlier.
# if defined(_MSC_VER) && (_MSC_VER < 1500)
# ifdef ENABLE_STUB_IMPL
# define STUB_IMPL
# else
# error "Win32 FileID API Library is required for VC2005 or earlier."
# endif
# endif
#endif // USE_FILEEXTD
#ifdef __MINGW32__
# define UNUSED __attribute__((unused))
#else
# define UNUSED
#endif
#include "iscygpty.h"
//#define USE_DYNFILEID
#ifdef USE_DYNFILEID
typedef BOOL (WINAPI *pfnGetFileInformationByHandleEx)(
HANDLE hFile,
FILE_INFO_BY_HANDLE_CLASS FileInformationClass,
LPVOID lpFileInformation,
DWORD dwBufferSize);
static pfnGetFileInformationByHandleEx pGetFileInformationByHandleEx = NULL;
# ifndef USE_FILEEXTD
static BOOL WINAPI stub_GetFileInformationByHandleEx(
HANDLE hFile UNUSED,
FILE_INFO_BY_HANDLE_CLASS FileInformationClass UNUSED,
LPVOID lpFileInformation UNUSED,
DWORD dwBufferSize UNUSED)
{
return FALSE;
}
# endif
static void setup_fileid_api(void)
{
if (pGetFileInformationByHandleEx != NULL) {
return;
}
pGetFileInformationByHandleEx = (pfnGetFileInformationByHandleEx)
GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")),
"GetFileInformationByHandleEx");
if (pGetFileInformationByHandleEx == NULL) {
# ifdef USE_FILEEXTD
pGetFileInformationByHandleEx = GetFileInformationByHandleEx;
# else
pGetFileInformationByHandleEx = stub_GetFileInformationByHandleEx;
# endif
}
}
#else
# define pGetFileInformationByHandleEx GetFileInformationByHandleEx
# define setup_fileid_api()
#endif
#define is_wprefix(s, prefix) \
(wcsncmp((s), (prefix), sizeof(prefix) / sizeof(WCHAR) - 1) == 0)
// Check if the fd is a cygwin/msys's pty.
int is_cygpty(int fd)
{
#ifdef STUB_IMPL
return 0;
#else
HANDLE h;
int size = sizeof(FILE_NAME_INFO) + sizeof(WCHAR) * (MAX_PATH - 1);
FILE_NAME_INFO *nameinfo;
WCHAR *p = NULL;
setup_fileid_api();
h = (HANDLE) _get_osfhandle(fd);
if (h == INVALID_HANDLE_VALUE) {
return 0;
}
// Cygwin/msys's pty is a pipe.
if (GetFileType(h) != FILE_TYPE_PIPE) {
return 0;
}
nameinfo = malloc(size + sizeof(WCHAR));
if (nameinfo == NULL) {
return 0;
}
// Check the name of the pipe:
// '\{cygwin,msys}-XXXXXXXXXXXXXXXX-ptyN-{from,to}-master'
if (pGetFileInformationByHandleEx(h, FileNameInfo, nameinfo, size)) {
nameinfo->FileName[nameinfo->FileNameLength / sizeof(WCHAR)] = L'\0';
p = nameinfo->FileName;
if (is_wprefix(p, L"\\cygwin-")) { // Cygwin
p += 8;
} else if (is_wprefix(p, L"\\msys-")) { // MSYS and MSYS2
p += 6;
} else {
p = NULL;
}
if (p != NULL) {
while (*p && isxdigit(*p)) // Skip 16-digit hexadecimal.
++p;
if (is_wprefix(p, L"-pty")) {
p += 4;
} else {
p = NULL;
}
}
if (p != NULL) {
while (*p && isdigit(*p)) // Skip pty number.
++p;
if (is_wprefix(p, L"-from-master")) {
//p += 12;
} else if (is_wprefix(p, L"-to-master")) {
//p += 10;
} else {
p = NULL;
}
}
}
free(nameinfo);
return (p != NULL);
#endif // STUB_IMPL
}
// Check if at least one cygwin/msys pty is used.
int is_cygpty_used(void)
{
int fd, ret = 0;
for (fd = 0; fd < 3; fd++) {
ret |= is_cygpty(fd);
}
return ret;
}
#endif // _WIN32
// vim: set ts=4 sw=4:
|
