1/* Utility and Unix shadow routines for GNU Emacs support programs on NT. 2 Copyright (C) 1994, 2001, 2002, 2003, 2004, 2005, 3 2006, 2007 Free Software Foundation, Inc. 4 5This file is part of GNU Emacs. 6 7GNU Emacs is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GNU Emacs is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GNU Emacs; see the file COPYING. If not, write to 19the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20Boston, MA 02110-1301, USA. 21 22 Geoff Voelker (voelker@cs.washington.edu) 10-8-94 23*/ 24 25#include <windows.h> 26#include <stdlib.h> 27#include <stdio.h> 28#include <time.h> 29#include <direct.h> 30 31#include "ntlib.h" 32 33#define MAXPATHLEN _MAX_PATH 34 35/* Emulate sleep...we could have done this with a define, but that 36 would necessitate including windows.h in the files that used it. 37 This is much easier. */ 38void 39sleep(unsigned long seconds) 40{ 41 Sleep (seconds * 1000); 42} 43 44/* Get the current working directory. */ 45char * 46getwd (char *dir) 47{ 48 if (GetCurrentDirectory (MAXPATHLEN, dir) > 0) 49 return dir; 50 return NULL; 51} 52 53static HANDLE getppid_parent; 54static int getppid_ppid; 55 56int 57getppid(void) 58{ 59 char *ppid; 60 DWORD result; 61 62 ppid = getenv ("EM_PARENT_PROCESS_ID"); 63 if (!ppid) 64 { 65 printf("no pid.\n"); 66 return 0; 67 } 68 else 69 { 70 getppid_ppid = atoi (ppid); 71 } 72 73 if (!getppid_parent) 74 { 75 getppid_parent = OpenProcess (SYNCHRONIZE, FALSE, atoi(ppid)); 76 if (!getppid_parent) 77 { 78 printf ("Failed to open handle to parent process: %d\n", 79 GetLastError()); 80 exit (1); 81 } 82 } 83 84 result = WaitForSingleObject (getppid_parent, 0); 85 switch (result) 86 { 87 case WAIT_TIMEOUT: 88 /* The parent is still alive. */ 89 return getppid_ppid; 90 case WAIT_OBJECT_0: 91 /* The parent is gone. Return the pid of Unix init (1). */ 92 return 1; 93 case WAIT_FAILED: 94 default: 95 printf ("Checking parent status failed: %d\n", GetLastError()); 96 exit (1); 97 } 98} 99 100char * 101getlogin () 102{ 103 static char user_name[256]; 104 DWORD length = sizeof (user_name); 105 106 if (GetUserName (user_name, &length)) 107 return user_name; 108 return NULL; 109} 110 111char * 112cuserid (char * s) 113{ 114 char * name = getlogin (); 115 if (s) 116 return strcpy (s, name ? name : ""); 117 return name; 118} 119 120int 121getuid () 122{ 123 return 0; 124} 125 126int 127setuid (int uid) 128{ 129 return 0; 130} 131 132struct passwd * 133getpwuid (int uid) 134{ 135 return NULL; 136} 137 138char * 139getpass (const char * prompt) 140{ 141 static char input[256]; 142 HANDLE in; 143 HANDLE err; 144 DWORD count; 145 146 in = GetStdHandle (STD_INPUT_HANDLE); 147 err = GetStdHandle (STD_ERROR_HANDLE); 148 149 if (in == INVALID_HANDLE_VALUE || err == INVALID_HANDLE_VALUE) 150 return NULL; 151 152 if (WriteFile (err, prompt, strlen (prompt), &count, NULL)) 153 { 154 int istty = (GetFileType (in) == FILE_TYPE_CHAR); 155 DWORD old_flags; 156 int rc; 157 158 if (istty) 159 { 160 if (GetConsoleMode (in, &old_flags)) 161 SetConsoleMode (in, ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT); 162 else 163 istty = 0; 164 } 165 rc = ReadFile (in, input, sizeof (input), &count, NULL); 166 if (count >= 2 && input[count - 2] == '\r') 167 input[count - 2] = '\0'; 168 else 169 { 170 char buf[256]; 171 while (ReadFile (in, buf, sizeof (buf), &count, NULL) > 0) 172 if (count >= 2 && buf[count - 2] == '\r') 173 break; 174 } 175 WriteFile (err, "\r\n", 2, &count, NULL); 176 if (istty) 177 SetConsoleMode (in, old_flags); 178 if (rc) 179 return input; 180 } 181 182 return NULL; 183} 184 185int 186fchown (int fd, int uid, int gid) 187{ 188 return 0; 189} 190 191/* Place a wrapper around the MSVC version of ctime. It returns NULL 192 on network directories, so we handle that case here. 193 (Ulrich Leodolter, 1/11/95). */ 194char * 195sys_ctime (const time_t *t) 196{ 197 char *str = (char *) ctime (t); 198 return (str ? str : "Sun Jan 01 00:00:00 1970"); 199} 200 201FILE * 202sys_fopen(const char * path, const char * mode) 203{ 204 return fopen (path, mode); 205} 206 207int 208sys_chdir (const char * path) 209{ 210 return _chdir (path); 211} 212 213/* arch-tag: 7b63fb83-70ee-4124-8822-54e53e5d0773 214 (do not change this comment) */ 215