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100
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1 /* Process support for Windows NT port of XEMACS.
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2 Copyright (C) 1992, 1995 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA.
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20
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21 Drew Bliss Oct 14, 1993
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22 Adapted from alarm.c by Tim Fleehart */
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23
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24 /* Adapted for XEmacs by David Hobley <david@spook-le0.cia.com.au> */
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209
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25 /* Synced with FSF Emacs 19.34.6 by Marc Paquette <marcpa@cam.org> */
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100
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26
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27 #include <stdio.h>
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28 #include <stdlib.h>
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29 #include <errno.h>
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30 #include <io.h>
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31 #include <fcntl.h>
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32 #include <signal.h>
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33
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34 /* must include CRT headers *before* config.h */
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274
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35 /* ### I don't believe it - martin */
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36 #include <config.h>
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100
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37 #undef signal
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38 #undef wait
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39 #undef spawnve
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40 #undef select
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41 #undef kill
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42
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43 #include <windows.h>
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239
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44 #include <sys/socket.h>
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100
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45
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46 #include "lisp.h"
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239
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47 #include "sysproc.h"
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100
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48 #include "nt.h"
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209
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49 #include "ntheap.h" /* From 19.34.6 */
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100
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50 #include "systime.h"
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223
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51 #include "syssignal.h"
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100
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52 #include "syswait.h"
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53 #include "process.h"
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209
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54 /*#include "w32term.h"*/ /* From 19.34.6: sync in ? --marcpa */
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100
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55
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288
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56 /* #### I'm not going to play with shit. */
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57 #pragma warning (disable:4013 4024 4090)
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58
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100
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59 /* Control whether spawnve quotes arguments as necessary to ensure
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60 correct parsing by child process. Because not all uses of spawnve
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371
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61 are careful about constructing argv arrays, we make this behaviour
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100
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62 conditional (off by default). */
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63 Lisp_Object Vwin32_quote_process_args;
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64
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209
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65 /* Control whether create_child causes the process' window to be
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66 hidden. The default is nil. */
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67 Lisp_Object Vwin32_start_process_show_window;
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68
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69 /* Control whether create_child causes the process to inherit Emacs'
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70 console window, or be given a new one of its own. The default is
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71 nil, to allow multiple DOS programs to run on Win95. Having separate
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72 consoles also allows Emacs to cleanly terminate process groups. */
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73 Lisp_Object Vwin32_start_process_share_console;
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74
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100
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75 /* Time to sleep before reading from a subprocess output pipe - this
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76 avoids the inefficiency of frequently reading small amounts of data.
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77 This is primarily necessary for handling DOS processes on Windows 95,
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78 but is useful for Win32 processes on both Win95 and NT as well. */
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79 Lisp_Object Vwin32_pipe_read_delay;
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80
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209
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81 /* Control whether stat() attempts to generate fake but hopefully
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82 "accurate" inode values, by hashing the absolute truenames of files.
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83 This should detect aliasing between long and short names, but still
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84 allows the possibility of hash collisions. */
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85 Lisp_Object Vwin32_generate_fake_inodes;
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86
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87 Lisp_Object Qhigh, Qlow;
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100
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88
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239
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89 #ifndef DEBUG_XEMACS
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90 __inline
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100
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91 #endif
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92 void _DebPrint (const char *fmt, ...)
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93 {
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239
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94 #ifdef DEBUG_XEMACS
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100
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95 char buf[1024];
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96 va_list args;
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97
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98 va_start (args, fmt);
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99 vsprintf (buf, fmt, args);
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100 va_end (args);
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101 OutputDebugString (buf);
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239
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102 #endif
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100
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103 }
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104
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223
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105 /* sys_signal moved to nt.c. It's now called msw_signal... */
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100
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106
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107 /* Defined in <process.h> which conflicts with the local copy */
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108 #define _P_NOWAIT 1
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109
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110 /* Child process management list. */
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111 int child_proc_count = 0;
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112 child_process child_procs[ MAX_CHILDREN ];
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113 child_process *dead_child = NULL;
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114
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115 DWORD WINAPI reader_thread (void *arg);
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116
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117 /* Find an unused process slot. */
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118 child_process *
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119 new_child (void)
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120 {
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121 child_process *cp;
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122 DWORD id;
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123
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124 for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
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125 if (!CHILD_ACTIVE (cp))
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272
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126 goto Initialize;
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100
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127 if (child_proc_count == MAX_CHILDREN)
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128 return NULL;
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129 cp = &child_procs[child_proc_count++];
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130
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272
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131 Initialize:
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132 xzero (*cp);
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100
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133 cp->fd = -1;
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134 cp->pid = -1;
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135 cp->procinfo.hProcess = NULL;
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136 cp->status = STATUS_READ_ERROR;
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137
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138 /* use manual reset event so that select() will function properly */
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139 cp->char_avail = CreateEvent (NULL, TRUE, FALSE, NULL);
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140 if (cp->char_avail)
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141 {
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142 cp->char_consumed = CreateEvent (NULL, FALSE, FALSE, NULL);
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143 if (cp->char_consumed)
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144 {
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145 cp->thrd = CreateThread (NULL, 1024, reader_thread, cp, 0, &id);
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146 if (cp->thrd)
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147 return cp;
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148 }
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149 }
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150 delete_child (cp);
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151 return NULL;
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152 }
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153
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154 void
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155 delete_child (child_process *cp)
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156 {
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157 int i;
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158
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159 /* Should not be deleting a child that is still needed. */
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160 for (i = 0; i < MAXDESC; i++)
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161 if (fd_info[i].cp == cp)
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162 abort ();
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163
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164 if (!CHILD_ACTIVE (cp))
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165 return;
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166
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167 /* reap thread if necessary */
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168 if (cp->thrd)
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169 {
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170 DWORD rc;
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171
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172 if (GetExitCodeThread (cp->thrd, &rc) && rc == STILL_ACTIVE)
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173 {
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174 /* let the thread exit cleanly if possible */
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175 cp->status = STATUS_READ_ERROR;
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176 SetEvent (cp->char_consumed);
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177 if (WaitForSingleObject (cp->thrd, 1000) != WAIT_OBJECT_0)
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178 {
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179 DebPrint (("delete_child.WaitForSingleObject (thread) failed "
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180 "with %lu for fd %ld\n", GetLastError (), cp->fd));
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181 TerminateThread (cp->thrd, 0);
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182 }
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183 }
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184 CloseHandle (cp->thrd);
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185 cp->thrd = NULL;
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186 }
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187 if (cp->char_avail)
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188 {
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189 CloseHandle (cp->char_avail);
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190 cp->char_avail = NULL;
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191 }
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192 if (cp->char_consumed)
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193 {
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194 CloseHandle (cp->char_consumed);
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195 cp->char_consumed = NULL;
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196 }
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197
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198 /* update child_proc_count (highest numbered slot in use plus one) */
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199 if (cp == child_procs + child_proc_count - 1)
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200 {
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201 for (i = child_proc_count-1; i >= 0; i--)
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202 if (CHILD_ACTIVE (&child_procs[i]))
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203 {
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204 child_proc_count = i + 1;
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205 break;
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206 }
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207 }
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208 if (i < 0)
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209 child_proc_count = 0;
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210 }
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211
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212 /* Find a child by pid. */
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213 static child_process *
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214 find_child_pid (DWORD pid)
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215 {
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216 child_process *cp;
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217
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218 for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
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219 if (CHILD_ACTIVE (cp) && pid == cp->pid)
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220 return cp;
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221 return NULL;
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222 }
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223
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224
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225 /* Thread proc for child process and socket reader threads. Each thread
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226 is normally blocked until woken by select() to check for input by
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227 reading one char. When the read completes, char_avail is signalled
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228 to wake up the select emulator and the thread blocks itself again. */
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229 DWORD WINAPI
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230 reader_thread (void *arg)
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231 {
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232 child_process *cp;
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233
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234 /* Our identity */
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235 cp = (child_process *)arg;
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236
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371
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237 /* We have to wait for the go-ahead before we can start */
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100
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238 if (cp == NULL ||
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239 WaitForSingleObject (cp->char_consumed, INFINITE) != WAIT_OBJECT_0)
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371
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240 return 1;
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100
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241
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242 for (;;)
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243 {
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244 int rc;
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245
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246 rc = _sys_read_ahead (cp->fd);
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247
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248 /* The name char_avail is a misnomer - it really just means the
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249 read-ahead has completed, whether successfully or not. */
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250 if (!SetEvent (cp->char_avail))
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251 {
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252 DebPrint (("reader_thread.SetEvent failed with %lu for fd %ld\n",
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253 GetLastError (), cp->fd));
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254 return 1;
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255 }
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256
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257 if (rc == STATUS_READ_ERROR)
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371
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258 return 1;
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100
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259
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260 /* If the read died, the child has died so let the thread die */
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261 if (rc == STATUS_READ_FAILED)
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262 break;
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263
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264 /* Wait until our input is acknowledged before reading again */
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265 if (WaitForSingleObject (cp->char_consumed, INFINITE) != WAIT_OBJECT_0)
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266 {
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267 DebPrint (("reader_thread.WaitForSingleObject failed with "
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268 "%lu for fd %ld\n", GetLastError (), cp->fd));
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269 break;
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270 }
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271 }
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272 return 0;
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273 }
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274
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209
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275 /* To avoid Emacs changing directory, we just record here the directory
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276 the new process should start in. This is set just before calling
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277 sys_spawnve, and is not generally valid at any other time. */
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288
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278 static const char * process_dir;
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209
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279
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100
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280 static BOOL
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281 create_child (char *exe, char *cmdline, char *env,
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282 int * pPid, child_process *cp)
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283 {
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284 STARTUPINFO start;
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285 SECURITY_ATTRIBUTES sec_attrs;
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286 SECURITY_DESCRIPTOR sec_desc;
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209
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287 char dir[ MAXPATHLEN ];
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100
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288
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289 if (cp == NULL) abort ();
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290
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272
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291 xzero (start);
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100
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292 start.cb = sizeof (start);
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293
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294 #ifdef HAVE_NTGUI
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209
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295 if (NILP (Vwin32_start_process_show_window))
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100
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296 start.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
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209
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297 else
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298 start.dwFlags = STARTF_USESTDHANDLES;
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100
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299 start.wShowWindow = SW_HIDE;
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300
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301 start.hStdInput = GetStdHandle (STD_INPUT_HANDLE);
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302 start.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE);
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303 start.hStdError = GetStdHandle (STD_ERROR_HANDLE);
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304 #endif /* HAVE_NTGUI */
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305
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306 /* Explicitly specify no security */
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307 if (!InitializeSecurityDescriptor (&sec_desc, SECURITY_DESCRIPTOR_REVISION))
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308 goto EH_Fail;
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309 if (!SetSecurityDescriptorDacl (&sec_desc, TRUE, NULL, FALSE))
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310 goto EH_Fail;
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311 sec_attrs.nLength = sizeof (sec_attrs);
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312 sec_attrs.lpSecurityDescriptor = &sec_desc;
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313 sec_attrs.bInheritHandle = FALSE;
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314
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209
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315 strcpy (dir, process_dir);
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316 unixtodos_filename (dir);
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317
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100
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318 if (!CreateProcess (exe, cmdline, &sec_attrs, NULL, TRUE,
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209
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319 (!NILP (Vwin32_start_process_share_console)
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320 ? CREATE_NEW_PROCESS_GROUP
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321 : CREATE_NEW_CONSOLE),
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322 env, dir,
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100
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323 &start, &cp->procinfo))
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324 goto EH_Fail;
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325
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326 cp->pid = (int) cp->procinfo.dwProcessId;
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327
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371
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328 /* Hack for Windows 95, which assigns large (ie negative) pids */
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329 if (cp->pid < 0)
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330 cp->pid = -cp->pid;
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308
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331
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357
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332 /* pid must fit in a Lisp_Int */
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371
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333 #ifdef USE_UNION_TYPE
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334 cp->pid = (cp->pid & ((1U << VALBITS) - 1));
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335 #else
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336 cp->pid = (cp->pid & VALMASK);
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337 #endif
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100
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338
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339 *pPid = cp->pid;
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340
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341 return TRUE;
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342
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343 EH_Fail:
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344 DebPrint (("create_child.CreateProcess failed: %ld\n", GetLastError()););
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345 return FALSE;
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346 }
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347
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209
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348 void
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349 win32_executable_type (char * filename, int * is_dos_app, int * is_cygnus_app)
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100
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350 {
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209
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351 file_data executable;
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352 char * p;
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100
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353
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209
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354 /* Default values in case we can't tell for sure. */
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355 *is_dos_app = FALSE;
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356 *is_cygnus_app = FALSE;
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357
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358 if (!open_input_file (&executable, filename))
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359 return;
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360
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361 p = strrchr (filename, '.');
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100
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362
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363 /* We can only identify DOS .com programs from the extension. */
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364 if (p && stricmp (p, ".com") == 0)
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209
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365 *is_dos_app = TRUE;
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366 else if (p && (stricmp (p, ".bat") == 0 ||
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367 stricmp (p, ".cmd") == 0))
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368 {
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369 /* A DOS shell script - it appears that CreateProcess is happy to
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370 accept this (somewhat surprisingly); presumably it looks at
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371 COMSPEC to determine what executable to actually invoke.
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|
100
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372 Therefore, we have to do the same here as well. */
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209
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373 /* Actually, I think it uses the program association for that
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374 extension, which is defined in the registry. */
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375 p = egetenv ("COMSPEC");
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100
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376 if (p)
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209
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377 win32_executable_type (p, is_dos_app, is_cygnus_app);
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100
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378 }
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379 else
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380 {
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209
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381 /* Look for DOS .exe signature - if found, we must also check that
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382 it isn't really a 16- or 32-bit Windows exe, since both formats
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383 start with a DOS program stub. Note that 16-bit Windows
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384 executables use the OS/2 1.x format. */
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385
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386 IMAGE_DOS_HEADER * dos_header;
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387 IMAGE_NT_HEADERS * nt_header;
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388
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389 dos_header = (PIMAGE_DOS_HEADER) executable.file_base;
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390 if (dos_header->e_magic != IMAGE_DOS_SIGNATURE)
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391 goto unwind;
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392
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393 nt_header = (PIMAGE_NT_HEADERS) ((char *) dos_header + dos_header->e_lfanew);
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|
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394
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|
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395 if ((char *) nt_header > (char *) dos_header + executable.size)
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|
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396 {
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|
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397 /* Some dos headers (pkunzip) have bogus e_lfanew fields. */
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398 *is_dos_app = TRUE;
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|
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399 }
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|
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400 else if (nt_header->Signature != IMAGE_NT_SIGNATURE &&
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|
|
401 LOWORD (nt_header->Signature) != IMAGE_OS2_SIGNATURE)
|
|
|
402 {
|
|
|
403 *is_dos_app = TRUE;
|
|
|
404 }
|
|
|
405 else if (nt_header->Signature == IMAGE_NT_SIGNATURE)
|
|
|
406 {
|
|
|
407 /* Look for cygwin.dll in DLL import list. */
|
|
|
408 IMAGE_DATA_DIRECTORY import_dir =
|
|
|
409 nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
|
|
|
410 IMAGE_IMPORT_DESCRIPTOR * imports;
|
|
|
411 IMAGE_SECTION_HEADER * section;
|
|
|
412
|
|
|
413 section = rva_to_section (import_dir.VirtualAddress, nt_header);
|
|
|
414 imports = RVA_TO_PTR (import_dir.VirtualAddress, section, executable);
|
|
|
415
|
|
|
416 for ( ; imports->Name; imports++)
|
|
100
|
417 {
|
|
209
|
418 char * dllname = RVA_TO_PTR (imports->Name, section, executable);
|
|
|
419
|
|
|
420 if (strcmp (dllname, "cygwin.dll") == 0)
|
|
|
421 {
|
|
|
422 *is_cygnus_app = TRUE;
|
|
|
423 break;
|
|
|
424 }
|
|
100
|
425 }
|
|
|
426 }
|
|
209
|
427 }
|
|
|
428
|
|
|
429 unwind:
|
|
|
430 close_file_data (&executable);
|
|
|
431 }
|
|
|
432
|
|
|
433 int
|
|
|
434 compare_env (const char **strp1, const char **strp2)
|
|
|
435 {
|
|
|
436 const char *str1 = *strp1, *str2 = *strp2;
|
|
|
437
|
|
|
438 while (*str1 && *str2 && *str1 != '=' && *str2 != '=')
|
|
|
439 {
|
|
|
440 if ((*str1) > (*str2))
|
|
|
441 return 1;
|
|
|
442 else if ((*str1) < (*str2))
|
|
|
443 return -1;
|
|
|
444 str1++, str2++;
|
|
100
|
445 }
|
|
|
446
|
|
209
|
447 if (*str1 == '=' && *str2 == '=')
|
|
|
448 return 0;
|
|
|
449 else if (*str1 == '=')
|
|
|
450 return -1;
|
|
|
451 else
|
|
|
452 return 1;
|
|
100
|
453 }
|
|
|
454
|
|
209
|
455 void
|
|
|
456 merge_and_sort_env (char **envp1, char **envp2, char **new_envp)
|
|
|
457 {
|
|
|
458 char **optr, **nptr;
|
|
|
459 int num;
|
|
|
460
|
|
|
461 nptr = new_envp;
|
|
|
462 optr = envp1;
|
|
|
463 while (*optr)
|
|
|
464 *nptr++ = *optr++;
|
|
|
465 num = optr - envp1;
|
|
|
466
|
|
|
467 optr = envp2;
|
|
|
468 while (*optr)
|
|
|
469 *nptr++ = *optr++;
|
|
|
470 num += optr - envp2;
|
|
|
471
|
|
|
472 qsort (new_envp, num, sizeof (char *), compare_env);
|
|
|
473
|
|
|
474 *nptr = NULL;
|
|
|
475 }
|
|
100
|
476
|
|
|
477 /* When a new child process is created we need to register it in our list,
|
|
|
478 so intercept spawn requests. */
|
|
|
479 int
|
|
239
|
480 sys_spawnve (int mode, CONST char *cmdname,
|
|
|
481 CONST char * CONST *argv, CONST char *CONST *envp)
|
|
100
|
482 {
|
|
|
483 Lisp_Object program, full;
|
|
|
484 char *cmdline, *env, *parg, **targ;
|
|
209
|
485 int arglen, numenv;
|
|
100
|
486 int pid;
|
|
|
487 child_process *cp;
|
|
209
|
488 int is_dos_app, is_cygnus_app;
|
|
|
489 int do_quoting = 0;
|
|
|
490 char escape_char;
|
|
|
491 /* We pass our process ID to our children by setting up an environment
|
|
|
492 variable in their environment. */
|
|
|
493 char ppid_env_var_buffer[64];
|
|
|
494 char *extra_env[] = {ppid_env_var_buffer, NULL};
|
|
124
|
495 struct gcpro gcpro1;
|
|
|
496
|
|
100
|
497 /* We don't care about the other modes */
|
|
|
498 if (mode != _P_NOWAIT)
|
|
|
499 {
|
|
|
500 errno = EINVAL;
|
|
|
501 return -1;
|
|
|
502 }
|
|
|
503
|
|
|
504 /* Handle executable names without an executable suffix. */
|
|
|
505 program = make_string (cmdname, strlen (cmdname));
|
|
124
|
506 GCPRO1 (program);
|
|
100
|
507 if (NILP (Ffile_executable_p (program)))
|
|
|
508 {
|
|
|
509 full = Qnil;
|
|
|
510 locate_file (Vexec_path, program, EXEC_SUFFIXES, &full, 1);
|
|
|
511 if (NILP (full))
|
|
|
512 {
|
|
124
|
513 UNGCPRO;
|
|
100
|
514 errno = EINVAL;
|
|
|
515 return -1;
|
|
|
516 }
|
|
371
|
517 cmdname = XSTRING_DATA (full);
|
|
|
518 /* #### KLUDGE */
|
|
|
519 *(char**)(argv[0]) = cmdname;
|
|
100
|
520 }
|
|
124
|
521 UNGCPRO;
|
|
|
522
|
|
209
|
523 /* make sure argv[0] and cmdname are both in DOS format */
|
|
371
|
524 strcpy (cmdname = alloca (strlen (cmdname) + 1), argv[0]);
|
|
100
|
525 unixtodos_filename (cmdname);
|
|
239
|
526 /* #### KLUDGE */
|
|
371
|
527 *(char**)(argv[0]) = cmdname;
|
|
100
|
528
|
|
209
|
529 /* Determine whether program is a 16-bit DOS executable, or a Win32
|
|
|
530 executable that is implicitly linked to the Cygnus dll (implying it
|
|
|
531 was compiled with the Cygnus GNU toolchain and hence relies on
|
|
|
532 cygwin.dll to parse the command line - we use this to decide how to
|
|
|
533 escape quote chars in command line args that must be quoted). */
|
|
|
534 win32_executable_type (cmdname, &is_dos_app, &is_cygnus_app);
|
|
|
535
|
|
|
536 /* On Windows 95, if cmdname is a DOS app, we invoke a helper
|
|
|
537 application to start it by specifying the helper app as cmdname,
|
|
|
538 while leaving the real app name as argv[0]. */
|
|
|
539 if (is_dos_app)
|
|
100
|
540 {
|
|
209
|
541 cmdname = alloca (MAXPATHLEN);
|
|
|
542 if (egetenv ("CMDPROXY"))
|
|
|
543 strcpy (cmdname, egetenv ("CMDPROXY"));
|
|
|
544 else
|
|
|
545 {
|
|
|
546 strcpy (cmdname, XSTRING_DATA (Vinvocation_directory));
|
|
|
547 strcat (cmdname, "cmdproxy.exe");
|
|
|
548 }
|
|
|
549 unixtodos_filename (cmdname);
|
|
100
|
550 }
|
|
|
551
|
|
|
552 /* we have to do some conjuring here to put argv and envp into the
|
|
|
553 form CreateProcess wants... argv needs to be a space separated/null
|
|
|
554 terminated list of parameters, and envp is a null
|
|
|
555 separated/double-null terminated list of parameters.
|
|
|
556
|
|
209
|
557 Additionally, zero-length args and args containing whitespace or
|
|
|
558 quote chars need to be wrapped in double quotes - for this to work,
|
|
|
559 embedded quotes need to be escaped as well. The aim is to ensure
|
|
|
560 the child process reconstructs the argv array we start with
|
|
|
561 exactly, so we treat quotes at the beginning and end of arguments
|
|
|
562 as embedded quotes.
|
|
|
563
|
|
|
564 The Win32 GNU-based library from Cygnus doubles quotes to escape
|
|
|
565 them, while MSVC uses backslash for escaping. (Actually the MSVC
|
|
|
566 startup code does attempt to recognise doubled quotes and accept
|
|
|
567 them, but gets it wrong and ends up requiring three quotes to get a
|
|
|
568 single embedded quote!) So by default we decide whether to use
|
|
|
569 quote or backslash as the escape character based on whether the
|
|
|
570 binary is apparently a Cygnus compiled app.
|
|
|
571
|
|
|
572 Note that using backslash to escape embedded quotes requires
|
|
|
573 additional special handling if an embedded quote is already
|
|
|
574 preceeded by backslash, or if an arg requiring quoting ends with
|
|
|
575 backslash. In such cases, the run of escape characters needs to be
|
|
|
576 doubled. For consistency, we apply this special handling as long
|
|
|
577 as the escape character is not quote.
|
|
100
|
578
|
|
209
|
579 Since we have no idea how large argv and envp are likely to be we
|
|
|
580 figure out list lengths on the fly and allocate them. */
|
|
|
581
|
|
|
582 if (!NILP (Vwin32_quote_process_args))
|
|
|
583 {
|
|
|
584 do_quoting = 1;
|
|
|
585 /* Override escape char by binding win32-quote-process-args to
|
|
|
586 desired character, or use t for auto-selection. */
|
|
|
587 if (INTP (Vwin32_quote_process_args))
|
|
|
588 escape_char = XINT (Vwin32_quote_process_args);
|
|
|
589 else
|
|
|
590 escape_char = is_cygnus_app ? '"' : '\\';
|
|
|
591 }
|
|
100
|
592
|
|
|
593 /* do argv... */
|
|
|
594 arglen = 0;
|
|
|
595 targ = argv;
|
|
|
596 while (*targ)
|
|
|
597 {
|
|
|
598 char * p = *targ;
|
|
209
|
599 int need_quotes = 0;
|
|
|
600 int escape_char_run = 0;
|
|
100
|
601
|
|
|
602 if (*p == 0)
|
|
209
|
603 need_quotes = 1;
|
|
|
604 for ( ; *p; p++)
|
|
|
605 {
|
|
|
606 if (*p == '"')
|
|
100
|
607 {
|
|
209
|
608 /* allow for embedded quotes to be escaped */
|
|
100
|
609 arglen++;
|
|
209
|
610 need_quotes = 1;
|
|
|
611 /* handle the case where the embedded quote is already escaped */
|
|
|
612 if (escape_char_run > 0)
|
|
|
613 {
|
|
|
614 /* To preserve the arg exactly, we need to double the
|
|
|
615 preceding escape characters (plus adding one to
|
|
|
616 escape the quote character itself). */
|
|
|
617 arglen += escape_char_run;
|
|
100
|
618 }
|
|
209
|
619 }
|
|
100
|
620 else if (*p == ' ' || *p == '\t')
|
|
209
|
621 {
|
|
|
622 need_quotes = 1;
|
|
|
623 }
|
|
|
624
|
|
|
625 if (*p == escape_char && escape_char != '"')
|
|
|
626 escape_char_run++;
|
|
|
627 else
|
|
|
628 escape_char_run = 0;
|
|
|
629 }
|
|
|
630 if (need_quotes)
|
|
|
631 {
|
|
100
|
632 arglen += 2;
|
|
209
|
633 /* handle the case where the arg ends with an escape char - we
|
|
|
634 must not let the enclosing quote be escaped. */
|
|
|
635 if (escape_char_run > 0)
|
|
|
636 arglen += escape_char_run;
|
|
|
637 }
|
|
100
|
638 arglen += strlen (*targ++) + 1;
|
|
|
639 }
|
|
|
640 cmdline = alloca (arglen);
|
|
|
641 targ = argv;
|
|
|
642 parg = cmdline;
|
|
|
643 while (*targ)
|
|
|
644 {
|
|
|
645 char * p = *targ;
|
|
209
|
646 int need_quotes = 0;
|
|
100
|
647
|
|
|
648 if (*p == 0)
|
|
209
|
649 need_quotes = 1;
|
|
100
|
650
|
|
209
|
651 if (do_quoting)
|
|
100
|
652 {
|
|
|
653 for ( ; *p; p++)
|
|
|
654 if (*p == ' ' || *p == '\t' || *p == '"')
|
|
209
|
655 need_quotes = 1;
|
|
100
|
656 }
|
|
209
|
657 if (need_quotes)
|
|
100
|
658 {
|
|
209
|
659 int escape_char_run = 0;
|
|
100
|
660 char * first;
|
|
|
661 char * last;
|
|
|
662
|
|
|
663 p = *targ;
|
|
|
664 first = p;
|
|
|
665 last = p + strlen (p) - 1;
|
|
|
666 *parg++ = '"';
|
|
209
|
667 #if 0
|
|
|
668 /* This version does not escape quotes if they occur at the
|
|
|
669 beginning or end of the arg - this could lead to incorrect
|
|
371
|
670 behaviour when the arg itself represents a command line
|
|
209
|
671 containing quoted args. I believe this was originally done
|
|
|
672 as a hack to make some things work, before
|
|
|
673 `win32-quote-process-args' was added. */
|
|
100
|
674 while (*p)
|
|
|
675 {
|
|
|
676 if (*p == '"' && p > first && p < last)
|
|
209
|
677 *parg++ = escape_char; /* escape embedded quotes */
|
|
100
|
678 *parg++ = *p++;
|
|
|
679 }
|
|
209
|
680 #else
|
|
|
681 for ( ; *p; p++)
|
|
|
682 {
|
|
|
683 if (*p == '"')
|
|
|
684 {
|
|
|
685 /* double preceding escape chars if any */
|
|
|
686 while (escape_char_run > 0)
|
|
|
687 {
|
|
|
688 *parg++ = escape_char;
|
|
|
689 escape_char_run--;
|
|
|
690 }
|
|
|
691 /* escape all quote chars, even at beginning or end */
|
|
|
692 *parg++ = escape_char;
|
|
|
693 }
|
|
|
694 *parg++ = *p;
|
|
|
695
|
|
|
696 if (*p == escape_char && escape_char != '"')
|
|
|
697 escape_char_run++;
|
|
|
698 else
|
|
|
699 escape_char_run = 0;
|
|
|
700 }
|
|
|
701 /* double escape chars before enclosing quote */
|
|
|
702 while (escape_char_run > 0)
|
|
|
703 {
|
|
|
704 *parg++ = escape_char;
|
|
|
705 escape_char_run--;
|
|
|
706 }
|
|
|
707 #endif
|
|
100
|
708 *parg++ = '"';
|
|
|
709 }
|
|
|
710 else
|
|
|
711 {
|
|
|
712 strcpy (parg, *targ);
|
|
|
713 parg += strlen (*targ);
|
|
|
714 }
|
|
|
715 *parg++ = ' ';
|
|
|
716 targ++;
|
|
|
717 }
|
|
|
718 *--parg = '\0';
|
|
|
719
|
|
|
720 /* and envp... */
|
|
|
721 arglen = 1;
|
|
|
722 targ = envp;
|
|
209
|
723 numenv = 1; /* for end null */
|
|
100
|
724 while (*targ)
|
|
|
725 {
|
|
|
726 arglen += strlen (*targ++) + 1;
|
|
209
|
727 numenv++;
|
|
100
|
728 }
|
|
209
|
729 /* extra env vars... */
|
|
100
|
730 sprintf (ppid_env_var_buffer, "__PARENT_PROCESS_ID=%d",
|
|
|
731 GetCurrentProcessId ());
|
|
|
732 arglen += strlen (ppid_env_var_buffer) + 1;
|
|
209
|
733 numenv++;
|
|
100
|
734
|
|
209
|
735 /* merge env passed in and extra env into one, and sort it. */
|
|
|
736 targ = (char **) alloca (numenv * sizeof (char *));
|
|
|
737 merge_and_sort_env (envp, extra_env, targ);
|
|
|
738
|
|
|
739 /* concatenate env entries. */
|
|
100
|
740 env = alloca (arglen);
|
|
|
741 parg = env;
|
|
|
742 while (*targ)
|
|
|
743 {
|
|
|
744 strcpy (parg, *targ);
|
|
|
745 parg += strlen (*targ++);
|
|
|
746 *parg++ = '\0';
|
|
|
747 }
|
|
|
748 *parg++ = '\0';
|
|
|
749 *parg = '\0';
|
|
|
750
|
|
|
751 cp = new_child ();
|
|
|
752 if (cp == NULL)
|
|
|
753 {
|
|
|
754 errno = EAGAIN;
|
|
|
755 return -1;
|
|
|
756 }
|
|
|
757
|
|
|
758 /* Now create the process. */
|
|
|
759 if (!create_child (cmdname, cmdline, env, &pid, cp))
|
|
|
760 {
|
|
|
761 delete_child (cp);
|
|
|
762 errno = ENOEXEC;
|
|
|
763 return -1;
|
|
|
764 }
|
|
|
765
|
|
|
766 return pid;
|
|
|
767 }
|
|
|
768
|
|
|
769 /* Substitute for certain kill () operations */
|
|
209
|
770
|
|
|
771 static BOOL CALLBACK
|
|
|
772 find_child_console (HWND hwnd, child_process * cp)
|
|
|
773 {
|
|
|
774 DWORD thread_id;
|
|
|
775 DWORD process_id;
|
|
|
776
|
|
|
777 thread_id = GetWindowThreadProcessId (hwnd, &process_id);
|
|
|
778 if (process_id == cp->procinfo.dwProcessId)
|
|
|
779 {
|
|
|
780 char window_class[32];
|
|
|
781
|
|
|
782 GetClassName (hwnd, window_class, sizeof (window_class));
|
|
|
783 if (strcmp (window_class,
|
|
|
784 (os_subtype == OS_WIN95)
|
|
|
785 ? "tty"
|
|
|
786 : "ConsoleWindowClass") == 0)
|
|
|
787 {
|
|
|
788 cp->hwnd = hwnd;
|
|
|
789 return FALSE;
|
|
|
790 }
|
|
|
791 }
|
|
|
792 /* keep looking */
|
|
|
793 return TRUE;
|
|
|
794 }
|
|
|
795
|
|
100
|
796 int
|
|
|
797 sys_kill (int pid, int sig)
|
|
|
798 {
|
|
|
799 child_process *cp;
|
|
|
800 HANDLE proc_hand;
|
|
|
801 int need_to_free = 0;
|
|
|
802 int rc = 0;
|
|
|
803
|
|
|
804 /* Only handle signals that will result in the process dying */
|
|
|
805 if (sig != SIGINT && sig != SIGKILL && sig != SIGQUIT && sig != SIGHUP)
|
|
|
806 {
|
|
|
807 errno = EINVAL;
|
|
|
808 return -1;
|
|
|
809 }
|
|
|
810
|
|
|
811 cp = find_child_pid (pid);
|
|
|
812 if (cp == NULL)
|
|
|
813 {
|
|
|
814 proc_hand = OpenProcess (PROCESS_TERMINATE, 0, pid);
|
|
|
815 if (proc_hand == NULL)
|
|
|
816 {
|
|
|
817 errno = EPERM;
|
|
|
818 return -1;
|
|
|
819 }
|
|
|
820 need_to_free = 1;
|
|
|
821 }
|
|
|
822 else
|
|
|
823 {
|
|
|
824 proc_hand = cp->procinfo.hProcess;
|
|
|
825 pid = cp->procinfo.dwProcessId;
|
|
209
|
826
|
|
|
827 /* Try to locate console window for process. */
|
|
|
828 EnumWindows (find_child_console, (LPARAM) cp);
|
|
100
|
829 }
|
|
|
830
|
|
|
831 if (sig == SIGINT)
|
|
|
832 {
|
|
209
|
833 if (NILP (Vwin32_start_process_share_console) && cp && cp->hwnd)
|
|
|
834 {
|
|
|
835 BYTE control_scan_code = (BYTE) MapVirtualKey (VK_CONTROL, 0);
|
|
|
836 BYTE vk_break_code = VK_CANCEL;
|
|
|
837 BYTE break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
|
|
|
838 HWND foreground_window;
|
|
|
839
|
|
|
840 if (break_scan_code == 0)
|
|
|
841 {
|
|
|
842 /* Fake Ctrl-C if we can't manage Ctrl-Break. */
|
|
|
843 vk_break_code = 'C';
|
|
|
844 break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
|
|
|
845 }
|
|
|
846
|
|
|
847 foreground_window = GetForegroundWindow ();
|
|
|
848 if (foreground_window && SetForegroundWindow (cp->hwnd))
|
|
|
849 {
|
|
|
850 /* Generate keystrokes as if user had typed Ctrl-Break or Ctrl-C. */
|
|
|
851 keybd_event (VK_CONTROL, control_scan_code, 0, 0);
|
|
|
852 keybd_event (vk_break_code, break_scan_code, 0, 0);
|
|
|
853 keybd_event (vk_break_code, break_scan_code, KEYEVENTF_KEYUP, 0);
|
|
|
854 keybd_event (VK_CONTROL, control_scan_code, KEYEVENTF_KEYUP, 0);
|
|
|
855
|
|
|
856 /* Sleep for a bit to give time for Emacs frame to respond
|
|
|
857 to focus change events (if Emacs was active app). */
|
|
|
858 Sleep (10);
|
|
|
859
|
|
|
860 SetForegroundWindow (foreground_window);
|
|
|
861 }
|
|
|
862 }
|
|
100
|
863 /* Ctrl-Break is NT equivalent of SIGINT. */
|
|
209
|
864 else if (!GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, pid))
|
|
100
|
865 {
|
|
|
866 DebPrint (("sys_kill.GenerateConsoleCtrlEvent return %d "
|
|
|
867 "for pid %lu\n", GetLastError (), pid));
|
|
|
868 errno = EINVAL;
|
|
|
869 rc = -1;
|
|
|
870 }
|
|
|
871 }
|
|
|
872 else
|
|
|
873 {
|
|
209
|
874 if (NILP (Vwin32_start_process_share_console) && cp && cp->hwnd)
|
|
|
875 {
|
|
|
876 #if 1
|
|
|
877 if (os_subtype == OS_WIN95)
|
|
|
878 {
|
|
|
879 /*
|
|
|
880 Another possibility is to try terminating the VDM out-right by
|
|
|
881 calling the Shell VxD (id 0x17) V86 interface, function #4
|
|
|
882 "SHELL_Destroy_VM", ie.
|
|
|
883
|
|
|
884 mov edx,4
|
|
|
885 mov ebx,vm_handle
|
|
|
886 call shellapi
|
|
|
887
|
|
|
888 First need to determine the current VM handle, and then arrange for
|
|
|
889 the shellapi call to be made from the system vm (by using
|
|
|
890 Switch_VM_and_callback).
|
|
|
891
|
|
|
892 Could try to invoke DestroyVM through CallVxD.
|
|
|
893
|
|
|
894 */
|
|
|
895 #if 0
|
|
|
896 /* On Win95, posting WM_QUIT causes the 16-bit subsystem
|
|
|
897 to hang when cmdproxy is used in conjunction with
|
|
|
898 command.com for an interactive shell. Posting
|
|
|
899 WM_CLOSE pops up a dialog that, when Yes is selected,
|
|
|
900 does the same thing. TerminateProcess is also less
|
|
|
901 than ideal in that subprocesses tend to stick around
|
|
|
902 until the machine is shutdown, but at least it
|
|
|
903 doesn't freeze the 16-bit subsystem. */
|
|
|
904 PostMessage (cp->hwnd, WM_QUIT, 0xff, 0);
|
|
|
905 #endif
|
|
|
906 if (!TerminateProcess (proc_hand, 0xff))
|
|
|
907 {
|
|
|
908 DebPrint (("sys_kill.TerminateProcess returned %d "
|
|
|
909 "for pid %lu\n", GetLastError (), pid));
|
|
|
910 errno = EINVAL;
|
|
|
911 rc = -1;
|
|
|
912 }
|
|
|
913 }
|
|
|
914 else
|
|
|
915 #endif
|
|
|
916 PostMessage (cp->hwnd, WM_CLOSE, 0, 0);
|
|
|
917 }
|
|
100
|
918 /* Kill the process. On Win32 this doesn't kill child processes
|
|
|
919 so it doesn't work very well for shells which is why it's not
|
|
209
|
920 used in every case. */
|
|
|
921 else if (!TerminateProcess (proc_hand, 0xff))
|
|
100
|
922 {
|
|
|
923 DebPrint (("sys_kill.TerminateProcess returned %d "
|
|
|
924 "for pid %lu\n", GetLastError (), pid));
|
|
|
925 errno = EINVAL;
|
|
|
926 rc = -1;
|
|
|
927 }
|
|
|
928 }
|
|
|
929
|
|
|
930 if (need_to_free)
|
|
|
931 CloseHandle (proc_hand);
|
|
|
932
|
|
|
933 return rc;
|
|
|
934 }
|
|
|
935
|
|
|
936 #if 0
|
|
209
|
937 /* Sync with FSF Emacs 19.34.6 note: ifdef'ed out in XEmacs */
|
|
100
|
938 extern int report_file_error (CONST char *, Lisp_Object);
|
|
|
939 #endif
|
|
|
940 /* The following two routines are used to manipulate stdin, stdout, and
|
|
|
941 stderr of our child processes.
|
|
|
942
|
|
|
943 Assuming that in, out, and err are *not* inheritable, we make them
|
|
|
944 stdin, stdout, and stderr of the child as follows:
|
|
|
945
|
|
|
946 - Save the parent's current standard handles.
|
|
|
947 - Set the std handles to inheritable duplicates of the ones being passed in.
|
|
|
948 (Note that _get_osfhandle() is an io.h procedure that retrieves the
|
|
|
949 NT file handle for a crt file descriptor.)
|
|
|
950 - Spawn the child, which inherits in, out, and err as stdin,
|
|
|
951 stdout, and stderr. (see Spawnve)
|
|
|
952 - Close the std handles passed to the child.
|
|
|
953 - Reset the parent's standard handles to the saved handles.
|
|
|
954 (see reset_standard_handles)
|
|
|
955 We assume that the caller closes in, out, and err after calling us. */
|
|
|
956
|
|
|
957 void
|
|
|
958 prepare_standard_handles (int in, int out, int err, HANDLE handles[3])
|
|
|
959 {
|
|
|
960 HANDLE parent;
|
|
|
961 HANDLE newstdin, newstdout, newstderr;
|
|
|
962
|
|
|
963 parent = GetCurrentProcess ();
|
|
|
964
|
|
|
965 handles[0] = GetStdHandle (STD_INPUT_HANDLE);
|
|
|
966 handles[1] = GetStdHandle (STD_OUTPUT_HANDLE);
|
|
|
967 handles[2] = GetStdHandle (STD_ERROR_HANDLE);
|
|
|
968
|
|
|
969 /* make inheritable copies of the new handles */
|
|
|
970 if (!DuplicateHandle (parent,
|
|
|
971 (HANDLE) _get_osfhandle (in),
|
|
|
972 parent,
|
|
|
973 &newstdin,
|
|
|
974 0,
|
|
|
975 TRUE,
|
|
|
976 DUPLICATE_SAME_ACCESS))
|
|
|
977 report_file_error ("Duplicating input handle for child", Qnil);
|
|
|
978
|
|
|
979 if (!DuplicateHandle (parent,
|
|
|
980 (HANDLE) _get_osfhandle (out),
|
|
|
981 parent,
|
|
|
982 &newstdout,
|
|
|
983 0,
|
|
|
984 TRUE,
|
|
|
985 DUPLICATE_SAME_ACCESS))
|
|
|
986 report_file_error ("Duplicating output handle for child", Qnil);
|
|
|
987
|
|
|
988 if (!DuplicateHandle (parent,
|
|
|
989 (HANDLE) _get_osfhandle (err),
|
|
|
990 parent,
|
|
|
991 &newstderr,
|
|
|
992 0,
|
|
|
993 TRUE,
|
|
|
994 DUPLICATE_SAME_ACCESS))
|
|
|
995 report_file_error ("Duplicating error handle for child", Qnil);
|
|
|
996
|
|
|
997 /* and store them as our std handles */
|
|
|
998 if (!SetStdHandle (STD_INPUT_HANDLE, newstdin))
|
|
|
999 report_file_error ("Changing stdin handle", Qnil);
|
|
|
1000
|
|
|
1001 if (!SetStdHandle (STD_OUTPUT_HANDLE, newstdout))
|
|
|
1002 report_file_error ("Changing stdout handle", Qnil);
|
|
|
1003
|
|
|
1004 if (!SetStdHandle (STD_ERROR_HANDLE, newstderr))
|
|
|
1005 report_file_error ("Changing stderr handle", Qnil);
|
|
|
1006 }
|
|
|
1007
|
|
|
1008 void
|
|
|
1009 reset_standard_handles (int in, int out, int err, HANDLE handles[3])
|
|
|
1010 {
|
|
|
1011 /* close the duplicated handles passed to the child */
|
|
|
1012 CloseHandle (GetStdHandle (STD_INPUT_HANDLE));
|
|
|
1013 CloseHandle (GetStdHandle (STD_OUTPUT_HANDLE));
|
|
|
1014 CloseHandle (GetStdHandle (STD_ERROR_HANDLE));
|
|
|
1015
|
|
|
1016 /* now restore parent's saved std handles */
|
|
|
1017 SetStdHandle (STD_INPUT_HANDLE, handles[0]);
|
|
|
1018 SetStdHandle (STD_OUTPUT_HANDLE, handles[1]);
|
|
|
1019 SetStdHandle (STD_ERROR_HANDLE, handles[2]);
|
|
|
1020 }
|
|
|
1021
|
|
209
|
1022 void
|
|
288
|
1023 set_process_dir (const char * dir)
|
|
209
|
1024 {
|
|
|
1025 process_dir = dir;
|
|
|
1026 }
|
|
100
|
1027
|
|
209
|
1028 /* Some miscellaneous functions that are Windows specific, but not GUI
|
|
|
1029 specific (ie. are applicable in terminal or batch mode as well). */
|
|
|
1030
|
|
|
1031 /* lifted from fileio.c */
|
|
|
1032 #define CORRECT_DIR_SEPS(s) \
|
|
|
1033 do { if ('/' == DIRECTORY_SEP) dostounix_filename (s); \
|
|
|
1034 else unixtodos_filename (s); \
|
|
|
1035 } while (0)
|
|
|
1036
|
|
|
1037 DEFUN ("win32-short-file-name", Fwin32_short_file_name, 1, 1, "", /*
|
|
|
1038 Return the short file name version (8.3) of the full path of FILENAME.
|
|
|
1039 If FILENAME does not exist, return nil.
|
|
|
1040 All path elements in FILENAME are converted to their short names.
|
|
|
1041 */
|
|
|
1042 (filename))
|
|
|
1043 {
|
|
|
1044 char shortname[MAX_PATH];
|
|
|
1045
|
|
288
|
1046 CHECK_STRING (filename);
|
|
209
|
1047
|
|
|
1048 /* first expand it. */
|
|
|
1049 filename = Fexpand_file_name (filename, Qnil);
|
|
|
1050
|
|
|
1051 /* luckily, this returns the short version of each element in the path. */
|
|
|
1052 if (GetShortPathName (XSTRING_DATA (filename), shortname, MAX_PATH) == 0)
|
|
|
1053 return Qnil;
|
|
|
1054
|
|
|
1055 CORRECT_DIR_SEPS (shortname);
|
|
|
1056
|
|
|
1057 return build_string (shortname);
|
|
|
1058 }
|
|
|
1059
|
|
|
1060
|
|
|
1061 DEFUN ("win32-long-file-name", Fwin32_long_file_name, 1, 1, "", /*
|
|
|
1062 Return the long file name version of the full path of FILENAME.
|
|
|
1063 If FILENAME does not exist, return nil.
|
|
|
1064 All path elements in FILENAME are converted to their long names.
|
|
|
1065 */
|
|
|
1066 (filename))
|
|
|
1067 {
|
|
|
1068 char longname[ MAX_PATH ];
|
|
|
1069
|
|
288
|
1070 CHECK_STRING (filename);
|
|
209
|
1071
|
|
|
1072 /* first expand it. */
|
|
|
1073 filename = Fexpand_file_name (filename, Qnil);
|
|
|
1074
|
|
|
1075 if (!win32_get_long_filename (XSTRING_DATA (filename), longname, MAX_PATH))
|
|
|
1076 return Qnil;
|
|
|
1077
|
|
|
1078 CORRECT_DIR_SEPS (longname);
|
|
|
1079
|
|
|
1080 return build_string (longname);
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 DEFUN ("win32-set-process-priority", Fwin32_set_process_priority, 2, 2, "", /*
|
|
|
1084 Set the priority of PROCESS to PRIORITY.
|
|
|
1085 If PROCESS is nil, the priority of Emacs is changed, otherwise the
|
|
|
1086 priority of the process whose pid is PROCESS is changed.
|
|
|
1087 PRIORITY should be one of the symbols high, normal, or low;
|
|
|
1088 any other symbol will be interpreted as normal.
|
|
|
1089
|
|
|
1090 If successful, the return value is t, otherwise nil.
|
|
|
1091 */
|
|
|
1092 (process, priority))
|
|
|
1093 {
|
|
|
1094 HANDLE proc_handle = GetCurrentProcess ();
|
|
|
1095 DWORD priority_class = NORMAL_PRIORITY_CLASS;
|
|
|
1096 Lisp_Object result = Qnil;
|
|
|
1097
|
|
288
|
1098 CHECK_SYMBOL (priority);
|
|
209
|
1099
|
|
|
1100 if (!NILP (process))
|
|
|
1101 {
|
|
|
1102 DWORD pid;
|
|
|
1103 child_process *cp;
|
|
|
1104
|
|
|
1105 CHECK_INT (process);
|
|
|
1106
|
|
|
1107 /* Allow pid to be an internally generated one, or one obtained
|
|
|
1108 externally. This is necessary because real pids on Win95 are
|
|
|
1109 negative. */
|
|
|
1110
|
|
|
1111 pid = XINT (process);
|
|
|
1112 cp = find_child_pid (pid);
|
|
|
1113 if (cp != NULL)
|
|
|
1114 pid = cp->procinfo.dwProcessId;
|
|
|
1115
|
|
|
1116 proc_handle = OpenProcess (PROCESS_SET_INFORMATION, FALSE, pid);
|
|
|
1117 }
|
|
|
1118
|
|
|
1119 if (EQ (priority, Qhigh))
|
|
|
1120 priority_class = HIGH_PRIORITY_CLASS;
|
|
|
1121 else if (EQ (priority, Qlow))
|
|
|
1122 priority_class = IDLE_PRIORITY_CLASS;
|
|
|
1123
|
|
|
1124 if (proc_handle != NULL)
|
|
|
1125 {
|
|
|
1126 if (SetPriorityClass (proc_handle, priority_class))
|
|
|
1127 result = Qt;
|
|
|
1128 if (!NILP (process))
|
|
|
1129 CloseHandle (proc_handle);
|
|
|
1130 }
|
|
|
1131
|
|
|
1132 return result;
|
|
|
1133 }
|
|
|
1134
|
|
|
1135
|
|
|
1136 DEFUN ("win32-get-locale-info", Fwin32_get_locale_info, 1, 2, "", /*
|
|
|
1137 "Return information about the Windows locale LCID.
|
|
|
1138 By default, return a three letter locale code which encodes the default
|
|
|
1139 language as the first two characters, and the country or regionial variant
|
|
|
1140 as the third letter. For example, ENU refers to `English (United States)',
|
|
|
1141 while ENC means `English (Canadian)'.
|
|
|
1142
|
|
|
1143 If the optional argument LONGFORM is non-nil, the long form of the locale
|
|
|
1144 name is returned, e.g. `English (United States)' instead.
|
|
|
1145
|
|
|
1146 If LCID (a 16-bit number) is not a valid locale, the result is nil.
|
|
|
1147 */
|
|
|
1148 (lcid, longform))
|
|
|
1149 {
|
|
|
1150 int got_abbrev;
|
|
|
1151 int got_full;
|
|
|
1152 char abbrev_name[32] = { 0 };
|
|
|
1153 char full_name[256] = { 0 };
|
|
|
1154
|
|
|
1155 CHECK_INT (lcid);
|
|
|
1156
|
|
|
1157 if (!IsValidLocale (XINT (lcid), LCID_SUPPORTED))
|
|
|
1158 return Qnil;
|
|
|
1159
|
|
|
1160 if (NILP (longform))
|
|
|
1161 {
|
|
|
1162 got_abbrev = GetLocaleInfo (XINT (lcid),
|
|
|
1163 LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP,
|
|
|
1164 abbrev_name, sizeof (abbrev_name));
|
|
|
1165 if (got_abbrev)
|
|
|
1166 return build_string (abbrev_name);
|
|
|
1167 }
|
|
|
1168 else
|
|
|
1169 {
|
|
|
1170 got_full = GetLocaleInfo (XINT (lcid),
|
|
|
1171 LOCALE_SLANGUAGE | LOCALE_USE_CP_ACP,
|
|
|
1172 full_name, sizeof (full_name));
|
|
|
1173 if (got_full)
|
|
|
1174 return build_string (full_name);
|
|
|
1175 }
|
|
|
1176
|
|
|
1177 return Qnil;
|
|
|
1178 }
|
|
|
1179
|
|
|
1180
|
|
|
1181 DEFUN ("win32-get-current-locale-id", Fwin32_get_current_locale_id, 0, 0, "", /*
|
|
|
1182 "Return Windows locale id for current locale setting.
|
|
|
1183 This is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1184 human-readable form.
|
|
|
1185 */
|
|
|
1186 ())
|
|
|
1187 {
|
|
|
1188 return make_int (GetThreadLocale ());
|
|
|
1189 }
|
|
|
1190
|
|
|
1191
|
|
|
1192 DEFUN ("win32-get-default-locale-id", Fwin32_get_default_locale_id, 0, 1, "", /*
|
|
|
1193 "Return Windows locale id for default locale setting.
|
|
|
1194 By default, the system default locale setting is returned; if the optional
|
|
|
1195 parameter USERP is non-nil, the user default locale setting is returned.
|
|
|
1196 This is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1197 human-readable form.
|
|
|
1198 */
|
|
|
1199 (userp))
|
|
|
1200 {
|
|
|
1201 if (NILP (userp))
|
|
|
1202 return make_int (GetSystemDefaultLCID ());
|
|
|
1203 return make_int (GetUserDefaultLCID ());
|
|
|
1204 }
|
|
|
1205
|
|
|
1206 DWORD int_from_hex (char * s)
|
|
|
1207 {
|
|
|
1208 DWORD val = 0;
|
|
|
1209 static char hex[] = "0123456789abcdefABCDEF";
|
|
|
1210 char * p;
|
|
|
1211
|
|
|
1212 while (*s && (p = strchr(hex, *s)) != NULL)
|
|
|
1213 {
|
|
|
1214 unsigned digit = p - hex;
|
|
|
1215 if (digit > 15)
|
|
|
1216 digit -= 6;
|
|
|
1217 val = val * 16 + digit;
|
|
|
1218 s++;
|
|
|
1219 }
|
|
|
1220 return val;
|
|
|
1221 }
|
|
|
1222
|
|
|
1223 /* We need to build a global list, since the EnumSystemLocale callback
|
|
|
1224 function isn't given a context pointer. */
|
|
|
1225 Lisp_Object Vwin32_valid_locale_ids;
|
|
|
1226
|
|
|
1227 BOOL CALLBACK enum_locale_fn (LPTSTR localeNum)
|
|
|
1228 {
|
|
|
1229 DWORD id = int_from_hex (localeNum);
|
|
|
1230 Vwin32_valid_locale_ids = Fcons (make_int (id), Vwin32_valid_locale_ids);
|
|
|
1231 return TRUE;
|
|
|
1232 }
|
|
|
1233
|
|
|
1234 DEFUN ("win32-get-valid-locale-ids", Fwin32_get_valid_locale_ids, 0, 0, "", /*
|
|
|
1235 Return list of all valid Windows locale ids.
|
|
|
1236 Each id is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1237 human-readable form.
|
|
|
1238 */
|
|
|
1239 ())
|
|
|
1240 {
|
|
|
1241 Vwin32_valid_locale_ids = Qnil;
|
|
|
1242
|
|
|
1243 EnumSystemLocales (enum_locale_fn, LCID_SUPPORTED);
|
|
|
1244
|
|
|
1245 Vwin32_valid_locale_ids = Fnreverse (Vwin32_valid_locale_ids);
|
|
|
1246 return Vwin32_valid_locale_ids;
|
|
|
1247 }
|
|
|
1248
|
|
|
1249
|
|
|
1250 DEFUN ("win32-set-current-locale", Fwin32_set_current_locale, 1, 1, "", /*
|
|
|
1251 Make Windows locale LCID be the current locale setting for Emacs.
|
|
|
1252 If successful, the new locale id is returned, otherwise nil.
|
|
|
1253 */
|
|
|
1254 (lcid))
|
|
|
1255 {
|
|
|
1256 CHECK_INT (lcid);
|
|
|
1257
|
|
|
1258 if (!IsValidLocale (XINT (lcid), LCID_SUPPORTED))
|
|
|
1259 return Qnil;
|
|
|
1260
|
|
|
1261 if (!SetThreadLocale (XINT (lcid)))
|
|
|
1262 return Qnil;
|
|
|
1263
|
|
|
1264 /* Sync with FSF Emacs 19.34.6 note: dwWinThreadId declared in
|
|
|
1265 w32term.h and defined in w32fns.c, both of which are not in current
|
|
|
1266 XEmacs. ### Check what we lose by ifdef'ing out these. --marcpa */
|
|
|
1267 #if 0
|
|
|
1268 /* Need to set input thread locale if present. */
|
|
|
1269 if (dwWinThreadId)
|
|
|
1270 /* Reply is not needed. */
|
|
|
1271 PostThreadMessage (dwWinThreadId, WM_EMACS_SETLOCALE, XINT (lcid), 0);
|
|
|
1272 #endif
|
|
|
1273
|
|
|
1274 return make_int (GetThreadLocale ());
|
|
|
1275 }
|
|
|
1276
|
|
|
1277
|
|
288
|
1278 void
|
|
100
|
1279 syms_of_ntproc ()
|
|
|
1280 {
|
|
371
|
1281 Qhigh = intern ("high");
|
|
|
1282 Qlow = intern ("low");
|
|
|
1283
|
|
209
|
1284 DEFSUBR (Fwin32_short_file_name);
|
|
|
1285 DEFSUBR (Fwin32_long_file_name);
|
|
|
1286 DEFSUBR (Fwin32_set_process_priority);
|
|
|
1287 DEFSUBR (Fwin32_get_locale_info);
|
|
|
1288 DEFSUBR (Fwin32_get_current_locale_id);
|
|
|
1289 DEFSUBR (Fwin32_get_default_locale_id);
|
|
|
1290 DEFSUBR (Fwin32_get_valid_locale_ids);
|
|
|
1291 DEFSUBR (Fwin32_set_current_locale);
|
|
100
|
1292
|
|
|
1293 DEFVAR_LISP ("win32-quote-process-args", &Vwin32_quote_process_args /*
|
|
209
|
1294 Non-nil enables quoting of process arguments to ensure correct parsing.
|
|
100
|
1295 Because Windows does not directly pass argv arrays to child processes,
|
|
|
1296 programs have to reconstruct the argv array by parsing the command
|
|
|
1297 line string. For an argument to contain a space, it must be enclosed
|
|
|
1298 in double quotes or it will be parsed as multiple arguments.
|
|
|
1299
|
|
209
|
1300 If the value is a character, that character will be used to escape any
|
|
|
1301 quote characters that appear, otherwise a suitable escape character
|
|
|
1302 will be chosen based on the type of the program.
|
|
|
1303 */ );
|
|
|
1304 Vwin32_quote_process_args = Qt;
|
|
|
1305
|
|
|
1306 DEFVAR_LISP ("win32-start-process-show-window",
|
|
|
1307 &Vwin32_start_process_show_window /*
|
|
|
1308 When nil, processes started via start-process hide their windows.
|
|
|
1309 When non-nil, they show their window in the method of their choice.
|
|
|
1310 */ );
|
|
|
1311 Vwin32_start_process_show_window = Qnil;
|
|
|
1312
|
|
|
1313 DEFVAR_LISP ("win32-start-process-share-console",
|
|
|
1314 &Vwin32_start_process_share_console /*
|
|
|
1315 When nil, processes started via start-process are given a new console.
|
|
|
1316 When non-nil, they share the Emacs console; this has the limitation of
|
|
|
1317 allowing only only DOS subprocess to run at a time (whether started directly
|
|
|
1318 or indirectly by Emacs), and preventing Emacs from cleanly terminating the
|
|
|
1319 subprocess group, but may allow Emacs to interrupt a subprocess that doesn't
|
|
|
1320 otherwise respond to interrupts from Emacs.
|
|
|
1321 */ );
|
|
371
|
1322 Vwin32_start_process_share_console = Qnil;
|
|
100
|
1323
|
|
282
|
1324 DEFVAR_LISP ("win32-pipe-read-delay", &Vwin32_pipe_read_delay /*
|
|
209
|
1325 Forced delay before reading subprocess output.
|
|
100
|
1326 This is done to improve the buffering of subprocess output, by
|
|
|
1327 avoiding the inefficiency of frequently reading small amounts of data.
|
|
|
1328
|
|
|
1329 If positive, the value is the number of milliseconds to sleep before
|
|
|
1330 reading the subprocess output. If negative, the magnitude is the number
|
|
|
1331 of time slices to wait (effectively boosting the priority of the child
|
|
209
|
1332 process temporarily). A value of zero disables waiting entirely.
|
|
|
1333 */ );
|
|
282
|
1334 Vwin32_pipe_read_delay = make_int (50);
|
|
100
|
1335
|
|
209
|
1336 #if 0
|
|
|
1337 DEFVAR_LISP ("win32-generate-fake-inodes", &Vwin32_generate_fake_inodes /*
|
|
|
1338 "Non-nil means attempt to fake realistic inode values.
|
|
|
1339 This works by hashing the truename of files, and should detect
|
|
|
1340 aliasing between long and short (8.3 DOS) names, but can have
|
|
|
1341 false positives because of hash collisions. Note that determing
|
|
|
1342 the truename of a file can be slow.
|
|
|
1343 */ );
|
|
|
1344 Vwin32_generate_fake_inodes = Qnil;
|
|
|
1345 #endif
|
|
100
|
1346 }
|
|
|
1347 /* end of ntproc.c */
|
