Commit | Line | Data |
---|---|---|
95ed0025 | 1 | /* Utility and Unix shadow routines for GNU Emacs support programs on NT. |
73b0cd50 | 2 | Copyright (C) 1994, 2001-2011 Free Software Foundation, Inc. |
95ed0025 | 3 | |
3b7ad313 EN |
4 | This file is part of GNU Emacs. |
5 | ||
294981c7 | 6 | GNU Emacs is free software: you can redistribute it and/or modify |
3b7ad313 | 7 | it under the terms of the GNU General Public License as published by |
294981c7 GM |
8 | the Free Software Foundation, either version 3 of the License, or |
9 | (at your option) any later version. | |
3b7ad313 EN |
10 | |
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
294981c7 GM |
17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
18 | ||
95ed0025 RS |
19 | |
20 | Geoff Voelker (voelker@cs.washington.edu) 10-8-94 | |
21 | */ | |
22 | ||
23 | #include <windows.h> | |
24 | #include <stdlib.h> | |
25 | #include <stdio.h> | |
14f29224 GV |
26 | #include <time.h> |
27 | #include <direct.h> | |
10fea9c4 EZ |
28 | #include <sys/types.h> |
29 | #include <sys/stat.h> | |
30 | #include <errno.h> | |
9c88f339 | 31 | #include <ctype.h> |
14f29224 GV |
32 | |
33 | #include "ntlib.h" | |
95ed0025 RS |
34 | |
35 | #define MAXPATHLEN _MAX_PATH | |
36 | ||
37 | /* Emulate sleep...we could have done this with a define, but that | |
38 | would necessitate including windows.h in the files that used it. | |
39 | This is much easier. */ | |
40 | void | |
7c3320d8 | 41 | sleep (unsigned long seconds) |
95ed0025 RS |
42 | { |
43 | Sleep (seconds * 1000); | |
44 | } | |
45 | ||
46 | /* Get the current working directory. */ | |
133319ab | 47 | char * |
95ed0025 RS |
48 | getwd (char *dir) |
49 | { | |
14f29224 GV |
50 | if (GetCurrentDirectory (MAXPATHLEN, dir) > 0) |
51 | return dir; | |
52 | return NULL; | |
95ed0025 RS |
53 | } |
54 | ||
55 | static HANDLE getppid_parent; | |
56 | static int getppid_ppid; | |
57 | ||
58 | int | |
7c3320d8 | 59 | getppid (void) |
95ed0025 RS |
60 | { |
61 | char *ppid; | |
62 | DWORD result; | |
63 | ||
97e3c91b | 64 | ppid = getenv ("EM_PARENT_PROCESS_ID"); |
177c0ea7 | 65 | if (!ppid) |
95ed0025 | 66 | { |
7c3320d8 | 67 | printf ("no pid.\n"); |
95ed0025 | 68 | return 0; |
177c0ea7 JB |
69 | } |
70 | else | |
95ed0025 RS |
71 | { |
72 | getppid_ppid = atoi (ppid); | |
73 | } | |
74 | ||
177c0ea7 | 75 | if (!getppid_parent) |
95ed0025 | 76 | { |
7c3320d8 | 77 | getppid_parent = OpenProcess (SYNCHRONIZE, FALSE, atoi (ppid)); |
177c0ea7 | 78 | if (!getppid_parent) |
95ed0025 RS |
79 | { |
80 | printf ("Failed to open handle to parent process: %d\n", | |
7c3320d8 | 81 | GetLastError ()); |
95ed0025 RS |
82 | exit (1); |
83 | } | |
84 | } | |
85 | ||
86 | result = WaitForSingleObject (getppid_parent, 0); | |
177c0ea7 | 87 | switch (result) |
95ed0025 RS |
88 | { |
89 | case WAIT_TIMEOUT: | |
90 | /* The parent is still alive. */ | |
91 | return getppid_ppid; | |
92 | case WAIT_OBJECT_0: | |
93 | /* The parent is gone. Return the pid of Unix init (1). */ | |
94 | return 1; | |
95 | case WAIT_FAILED: | |
96 | default: | |
7c3320d8 | 97 | printf ("Checking parent status failed: %d\n", GetLastError ()); |
95ed0025 RS |
98 | exit (1); |
99 | } | |
100 | } | |
14f29224 GV |
101 | |
102 | char * | |
7c3320d8 | 103 | getlogin (void) |
14f29224 GV |
104 | { |
105 | static char user_name[256]; | |
106 | DWORD length = sizeof (user_name); | |
107 | ||
108 | if (GetUserName (user_name, &length)) | |
109 | return user_name; | |
110 | return NULL; | |
111 | } | |
112 | ||
113 | char * | |
114 | cuserid (char * s) | |
115 | { | |
116 | char * name = getlogin (); | |
117 | if (s) | |
118 | return strcpy (s, name ? name : ""); | |
119 | return name; | |
120 | } | |
121 | ||
22749e9a | 122 | unsigned |
7c3320d8 | 123 | getuid (void) |
14f29224 GV |
124 | { |
125 | return 0; | |
126 | } | |
127 | ||
b372fceb | 128 | unsigned |
7c3320d8 | 129 | getgid (void) |
b372fceb JB |
130 | { |
131 | return 0; | |
132 | } | |
133 | ||
134 | unsigned | |
7c3320d8 | 135 | getegid (void) |
b372fceb JB |
136 | { |
137 | return 0; | |
138 | } | |
139 | ||
14f29224 | 140 | int |
22749e9a | 141 | setuid (unsigned uid) |
14f29224 GV |
142 | { |
143 | return 0; | |
144 | } | |
145 | ||
b372fceb | 146 | int |
f915f0f7 | 147 | setregid (unsigned rgid, unsigned gid) |
b372fceb JB |
148 | { |
149 | return 0; | |
150 | } | |
151 | ||
14f29224 | 152 | struct passwd * |
22749e9a | 153 | getpwuid (unsigned uid) |
14f29224 GV |
154 | { |
155 | return NULL; | |
156 | } | |
157 | ||
158 | char * | |
159 | getpass (const char * prompt) | |
160 | { | |
161 | static char input[256]; | |
162 | HANDLE in; | |
163 | HANDLE err; | |
164 | DWORD count; | |
165 | ||
166 | in = GetStdHandle (STD_INPUT_HANDLE); | |
167 | err = GetStdHandle (STD_ERROR_HANDLE); | |
168 | ||
169 | if (in == INVALID_HANDLE_VALUE || err == INVALID_HANDLE_VALUE) | |
170 | return NULL; | |
171 | ||
172 | if (WriteFile (err, prompt, strlen (prompt), &count, NULL)) | |
173 | { | |
174 | int istty = (GetFileType (in) == FILE_TYPE_CHAR); | |
175 | DWORD old_flags; | |
176 | int rc; | |
177 | ||
178 | if (istty) | |
179 | { | |
180 | if (GetConsoleMode (in, &old_flags)) | |
181 | SetConsoleMode (in, ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT); | |
182 | else | |
183 | istty = 0; | |
184 | } | |
185 | rc = ReadFile (in, input, sizeof (input), &count, NULL); | |
186 | if (count >= 2 && input[count - 2] == '\r') | |
187 | input[count - 2] = '\0'; | |
188 | else | |
189 | { | |
190 | char buf[256]; | |
191 | while (ReadFile (in, buf, sizeof (buf), &count, NULL) > 0) | |
192 | if (count >= 2 && buf[count - 2] == '\r') | |
193 | break; | |
194 | } | |
195 | WriteFile (err, "\r\n", 2, &count, NULL); | |
196 | if (istty) | |
197 | SetConsoleMode (in, old_flags); | |
198 | if (rc) | |
199 | return input; | |
200 | } | |
201 | ||
202 | return NULL; | |
203 | } | |
204 | ||
205 | int | |
22749e9a | 206 | fchown (int fd, unsigned uid, unsigned gid) |
14f29224 GV |
207 | { |
208 | return 0; | |
209 | } | |
210 | ||
211 | /* Place a wrapper around the MSVC version of ctime. It returns NULL | |
177c0ea7 | 212 | on network directories, so we handle that case here. |
14f29224 GV |
213 | (Ulrich Leodolter, 1/11/95). */ |
214 | char * | |
215 | sys_ctime (const time_t *t) | |
216 | { | |
217 | char *str = (char *) ctime (t); | |
218 | return (str ? str : "Sun Jan 01 00:00:00 1970"); | |
219 | } | |
220 | ||
221 | FILE * | |
7c3320d8 | 222 | sys_fopen (const char * path, const char * mode) |
14f29224 GV |
223 | { |
224 | return fopen (path, mode); | |
225 | } | |
226 | ||
227 | int | |
228 | sys_chdir (const char * path) | |
229 | { | |
230 | return _chdir (path); | |
231 | } | |
ab5796a9 | 232 | |
10fea9c4 EZ |
233 | static FILETIME utc_base_ft; |
234 | static long double utc_base; | |
235 | static int init = 0; | |
236 | ||
237 | static time_t | |
238 | convert_time (FILETIME ft) | |
239 | { | |
240 | long double ret; | |
241 | ||
242 | if (CompareFileTime (&ft, &utc_base_ft) < 0) | |
243 | return 0; | |
244 | ||
245 | ret = (long double) ft.dwHighDateTime | |
246 | * 4096.0L * 1024.0L * 1024.0L + ft.dwLowDateTime; | |
247 | ret -= utc_base; | |
248 | return (time_t) (ret * 1e-7L); | |
249 | } | |
250 | ||
251 | static int | |
252 | is_exec (const char * name) | |
253 | { | |
254 | char * p = strrchr (name, '.'); | |
255 | return | |
256 | (p != NULL | |
257 | && (stricmp (p, ".exe") == 0 || | |
258 | stricmp (p, ".com") == 0 || | |
259 | stricmp (p, ".bat") == 0 || | |
260 | stricmp (p, ".cmd") == 0)); | |
261 | } | |
262 | ||
263 | #define IS_DIRECTORY_SEP(x) ((x) == '/' || (x) == '\\') | |
264 | ||
265 | /* We need this because nt/inc/sys/stat.h defines struct stat that is | |
266 | incompatible with the MS run-time libraries. */ | |
267 | int | |
268 | stat (const char * path, struct stat * buf) | |
269 | { | |
270 | WIN32_FIND_DATA wfd; | |
271 | HANDLE fh; | |
272 | int permission; | |
273 | int len; | |
274 | int rootdir = FALSE; | |
275 | char *name = alloca (FILENAME_MAX); | |
276 | ||
277 | if (!init) | |
278 | { | |
279 | /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */ | |
280 | SYSTEMTIME st; | |
281 | ||
282 | st.wYear = 1970; | |
283 | st.wMonth = 1; | |
284 | st.wDay = 1; | |
285 | st.wHour = 0; | |
286 | st.wMinute = 0; | |
287 | st.wSecond = 0; | |
288 | st.wMilliseconds = 0; | |
289 | ||
290 | SystemTimeToFileTime (&st, &utc_base_ft); | |
291 | utc_base = (long double) utc_base_ft.dwHighDateTime | |
292 | * 4096.0L * 1024.0L * 1024.0L + utc_base_ft.dwLowDateTime; | |
293 | init = 1; | |
294 | } | |
295 | ||
296 | if (path == NULL || buf == NULL || *path == '\0') | |
297 | { | |
298 | errno = EFAULT; | |
299 | return -1; | |
300 | } | |
301 | if (_mbspbrk (path, "*?|<>\"")) | |
302 | { | |
303 | errno = ENOENT; | |
304 | return -1; | |
305 | } | |
306 | ||
307 | strcpy (name, path); | |
308 | /* Remove trailing directory separator, unless name is the root | |
309 | directory of a drive in which case ensure there is a trailing | |
310 | separator. */ | |
311 | len = strlen (name); | |
312 | rootdir = IS_DIRECTORY_SEP (name[0]) | |
313 | || (len == 3 && name[1] == ':' && IS_DIRECTORY_SEP (name[2])); | |
314 | if (rootdir) | |
315 | { | |
316 | if (GetDriveType (name) < 2) | |
317 | { | |
318 | errno = ENOENT; | |
319 | return -1; | |
320 | } | |
321 | memset (&wfd, 0, sizeof (wfd)); | |
322 | wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY; | |
323 | wfd.ftCreationTime = utc_base_ft; | |
324 | wfd.ftLastAccessTime = utc_base_ft; | |
325 | wfd.ftLastWriteTime = utc_base_ft; | |
326 | strcpy (wfd.cFileName, name); | |
327 | } | |
328 | else | |
329 | { | |
330 | if (IS_DIRECTORY_SEP (name[len-1])) | |
331 | name[len - 1] = 0; | |
332 | ||
333 | fh = FindFirstFile (name, &wfd); | |
334 | if (fh == INVALID_HANDLE_VALUE) | |
335 | { | |
336 | errno = ENOENT; | |
337 | return -1; | |
338 | } | |
339 | FindClose (fh); | |
340 | } | |
341 | buf->st_mode = (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? | |
342 | S_IFDIR : S_IFREG; | |
343 | buf->st_nlink = 1; | |
344 | buf->st_ino = 0; | |
345 | ||
346 | if (name[0] && name[1] == ':') | |
347 | buf->st_dev = tolower (name[0]) - 'a' + 1; | |
348 | else | |
349 | buf->st_dev = _getdrive (); | |
350 | buf->st_rdev = buf->st_dev; | |
351 | ||
352 | buf->st_size = wfd.nFileSizeLow; | |
353 | ||
354 | /* Convert timestamps to Unix format. */ | |
355 | buf->st_mtime = convert_time (wfd.ftLastWriteTime); | |
356 | buf->st_atime = convert_time (wfd.ftLastAccessTime); | |
357 | if (buf->st_atime == 0) buf->st_atime = buf->st_mtime; | |
358 | buf->st_ctime = convert_time (wfd.ftCreationTime); | |
359 | if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime; | |
360 | ||
361 | /* determine rwx permissions */ | |
362 | if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY) | |
363 | permission = S_IREAD; | |
364 | else | |
365 | permission = S_IREAD | S_IWRITE; | |
366 | ||
367 | if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) | |
368 | permission |= S_IEXEC; | |
369 | else if (is_exec (name)) | |
370 | permission |= S_IEXEC; | |
371 | ||
372 | buf->st_mode |= permission | (permission >> 3) | (permission >> 6); | |
373 | ||
374 | return 0; | |
375 | } | |
376 |