Mercurial > vim
annotate src/iscygpty.c @ 12738:bd24b59084a1 v8.0.1247
patch 8.0.1247: not easy to find Debian build info
commit https://github.com/vim/vim/commit/86b21bb3e7bc687fc74e127d78a89b411929716b
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Nov 2 18:10:00 2017 +0100
patch 8.0.1247: not easy to find Debian build info
Problem: Not easy to find Debian build info.
Solution: Add a badge in the README file. (Dominique Pelle)
author | Christian Brabandt <cb@256bit.org> |
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date | Thu, 02 Nov 2017 18:15:04 +0100 |
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1 /* |
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2 * iscygpty.c -- part of ptycheck |
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3 * https://github.com/k-takata/ptycheck |
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4 * |
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5 * Copyright (c) 2015-2017 K.Takata |
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6 * |
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7 * You can redistribute it and/or modify it under the terms of either |
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8 * the MIT license (as described below) or the Vim license. |
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9 * |
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10 * Permission is hereby granted, free of charge, to any person obtaining |
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11 * a copy of this software and associated documentation files (the |
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12 * "Software"), to deal in the Software without restriction, including |
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13 * without limitation the rights to use, copy, modify, merge, publish, |
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14 * distribute, sublicense, and/or sell copies of the Software, and to |
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15 * permit persons to whom the Software is furnished to do so, subject to |
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16 * the following conditions: |
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17 * |
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18 * The above copyright notice and this permission notice shall be |
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19 * included in all copies or substantial portions of the Software. |
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20 * |
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21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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22 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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24 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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25 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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26 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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27 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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28 */ |
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29 |
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30 #ifdef _WIN32 |
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31 |
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32 #include <ctype.h> |
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33 #include <io.h> |
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34 #include <wchar.h> |
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35 #include <windows.h> |
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36 |
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37 #ifdef USE_FILEEXTD |
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38 /* VC 7.1 or earlier doesn't support SAL. */ |
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39 # if !defined(_MSC_VER) || (_MSC_VER < 1400) |
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40 # define __out |
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41 # define __in |
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42 # define __in_opt |
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43 # endif |
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44 /* Win32 FileID API Library: |
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45 * http://www.microsoft.com/en-us/download/details.aspx?id=22599 |
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46 * Needed for WinXP. */ |
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47 # include <fileextd.h> |
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48 #else /* USE_FILEEXTD */ |
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49 /* VC 8 or earlier. */ |
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50 # if defined(_MSC_VER) && (_MSC_VER < 1500) |
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51 # ifdef ENABLE_STUB_IMPL |
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52 # define STUB_IMPL |
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53 # else |
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54 # error "Win32 FileID API Library is required for VC2005 or earlier." |
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55 # endif |
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56 # endif |
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57 #endif /* USE_FILEEXTD */ |
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58 |
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59 |
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60 #include "iscygpty.h" |
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61 |
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62 //#define USE_DYNFILEID |
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63 #ifdef USE_DYNFILEID |
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64 typedef BOOL (WINAPI *pfnGetFileInformationByHandleEx)( |
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65 HANDLE hFile, |
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66 FILE_INFO_BY_HANDLE_CLASS FileInformationClass, |
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67 LPVOID lpFileInformation, |
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68 DWORD dwBufferSize |
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69 ); |
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70 static pfnGetFileInformationByHandleEx pGetFileInformationByHandleEx = NULL; |
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71 |
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72 # ifndef USE_FILEEXTD |
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73 static BOOL WINAPI stub_GetFileInformationByHandleEx( |
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74 HANDLE hFile, |
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75 FILE_INFO_BY_HANDLE_CLASS FileInformationClass, |
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76 LPVOID lpFileInformation, |
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77 DWORD dwBufferSize |
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78 ) |
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79 { |
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80 return FALSE; |
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81 } |
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82 # endif |
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83 |
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84 static void setup_fileid_api(void) |
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85 { |
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86 if (pGetFileInformationByHandleEx != NULL) { |
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87 return; |
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88 } |
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89 pGetFileInformationByHandleEx = (pfnGetFileInformationByHandleEx) |
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90 GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), |
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91 "GetFileInformationByHandleEx"); |
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92 if (pGetFileInformationByHandleEx == NULL) { |
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93 # ifdef USE_FILEEXTD |
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94 pGetFileInformationByHandleEx = GetFileInformationByHandleEx; |
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95 # else |
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96 pGetFileInformationByHandleEx = stub_GetFileInformationByHandleEx; |
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97 # endif |
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98 } |
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99 } |
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100 #else |
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101 # define pGetFileInformationByHandleEx GetFileInformationByHandleEx |
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102 # define setup_fileid_api() |
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103 #endif |
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104 |
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105 |
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106 #define is_wprefix(s, prefix) \ |
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107 (wcsncmp((s), (prefix), sizeof(prefix) / sizeof(WCHAR) - 1) == 0) |
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108 |
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109 /* Check if the fd is a cygwin/msys's pty. */ |
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110 int is_cygpty(int fd) |
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111 { |
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112 #ifdef STUB_IMPL |
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113 return 0; |
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114 #else |
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115 HANDLE h; |
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116 int size = sizeof(FILE_NAME_INFO) + sizeof(WCHAR) * (MAX_PATH - 1); |
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117 FILE_NAME_INFO *nameinfo; |
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118 WCHAR *p = NULL; |
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119 |
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120 setup_fileid_api(); |
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121 |
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122 h = (HANDLE) _get_osfhandle(fd); |
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123 if (h == INVALID_HANDLE_VALUE) { |
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124 return 0; |
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125 } |
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126 /* Cygwin/msys's pty is a pipe. */ |
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127 if (GetFileType(h) != FILE_TYPE_PIPE) { |
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128 return 0; |
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129 } |
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130 nameinfo = malloc(size + sizeof(WCHAR)); |
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131 if (nameinfo == NULL) { |
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132 return 0; |
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133 } |
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134 /* Check the name of the pipe: |
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135 * '\{cygwin,msys}-XXXXXXXXXXXXXXXX-ptyN-{from,to}-master' */ |
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136 if (pGetFileInformationByHandleEx(h, FileNameInfo, nameinfo, size)) { |
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137 nameinfo->FileName[nameinfo->FileNameLength / sizeof(WCHAR)] = L'\0'; |
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138 p = nameinfo->FileName; |
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139 if (is_wprefix(p, L"\\cygwin-")) { /* Cygwin */ |
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140 p += 8; |
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141 } else if (is_wprefix(p, L"\\msys-")) { /* MSYS and MSYS2 */ |
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142 p += 6; |
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143 } else { |
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144 p = NULL; |
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145 } |
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146 if (p != NULL) { |
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147 while (*p && isxdigit(*p)) /* Skip 16-digit hexadecimal. */ |
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148 ++p; |
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149 if (is_wprefix(p, L"-pty")) { |
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150 p += 4; |
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151 } else { |
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152 p = NULL; |
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153 } |
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154 } |
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155 if (p != NULL) { |
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156 while (*p && isdigit(*p)) /* Skip pty number. */ |
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157 ++p; |
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158 if (is_wprefix(p, L"-from-master")) { |
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159 //p += 12; |
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160 } else if (is_wprefix(p, L"-to-master")) { |
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161 //p += 10; |
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162 } else { |
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163 p = NULL; |
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164 } |
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165 } |
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166 } |
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167 free(nameinfo); |
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168 return (p != NULL); |
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169 #endif /* STUB_IMPL */ |
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170 } |
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171 |
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172 /* Check if at least one cygwin/msys pty is used. */ |
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173 int is_cygpty_used(void) |
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174 { |
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175 int fd, ret = 0; |
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176 |
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177 for (fd = 0; fd < 3; fd++) { |
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commit https://github.com/vim/vim/commit/97ff9b9cffd97219d888874b9b3811d55e99c78f
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178 ret |= is_cygpty(fd); |
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commit https://github.com/vim/vim/commit/97ff9b9cffd97219d888874b9b3811d55e99c78f
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179 } |
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commit https://github.com/vim/vim/commit/97ff9b9cffd97219d888874b9b3811d55e99c78f
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180 return ret; |
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181 } |
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commit https://github.com/vim/vim/commit/97ff9b9cffd97219d888874b9b3811d55e99c78f
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182 |
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183 #endif /* _WIN32 */ |
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184 |
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185 /* vim: set ts=4 sw=4: */ |