1 /* mswindows.c -- Windows-specific support
2 Copyright (C) 1995, 1996, 1997, 1998, 2004
3 Free Software Foundation, Inc.
5 This file is part of GNU Wget.
7 GNU Wget is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GNU Wget is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Wget; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 In addition, as a special exception, the Free Software Foundation
22 gives permission to link the code of its release of Wget with the
23 OpenSSL project's "OpenSSL" library (or with modified versions of it
24 that use the same license as the "OpenSSL" library), and distribute
25 the linked executables. You must obey the GNU General Public License
26 in all respects for all of the code used other than "OpenSSL". If you
27 modify this file, you may extend this exception to your version of the
28 file, but you are not obligated to do so. If you do not wish to do
29 so, delete this exception statement from your version. */
31 /* #### Someone please document what these functions do! */
42 #ifdef HACK_BCC_UTIME_BUG
48 # ifdef HAVE_SYS_UTIME_H
49 # include <sys/utime.h>
61 #ifndef ES_SYSTEM_REQUIRED
62 #define ES_SYSTEM_REQUIRED 0x00000001
66 #define ES_CONTINUOUS 0x80000000
70 /* Defined in log.c. */
71 void log_request_redirect_output PARAMS ((const char *));
73 static int windows_nt_p;
75 /* Windows version of xsleep in utils.c. */
78 xsleep (double seconds)
83 /* Explained in utils.c. */
85 seconds -= (long) seconds;
87 usleep (seconds * 1000000L);
88 #else /* not HAVE_USLEEP */
89 SleepEx (seconds * 1000, FALSE);
90 #endif /* not HAVE_USLEEP */
94 windows_main_junk (int *argc, char **argv, char **exec_name)
98 /* Remove .EXE from filename if it has one. */
99 *exec_name = xstrdup (*exec_name);
100 p = strrchr (*exec_name, '.');
114 log_request_redirect_output ("CTRL+Break");
118 fork_to_background (void)
120 /* Whether we arrange our own version of opt.lfilename here. */
125 opt.lfilename = unique_name (DEFAULT_LOGFILE, 0);
128 printf (_("Continuing in background.\n"));
130 printf (_("Output will be written to `%s'.\n"), opt.lfilename);
138 ws_handler (DWORD dwEvent)
145 #ifdef CTRLBREAK_BACKGND
146 case CTRL_BREAK_EVENT:
148 fork_to_background ();
150 case CTRL_SHUTDOWN_EVENT:
151 case CTRL_CLOSE_EVENT:
152 case CTRL_LOGOFF_EVENT:
160 static char *title_buf = NULL;
161 static char *curr_url = NULL;
162 static int old_percentage = -1;
164 /* Updates the console title with the URL of the current file being
167 ws_changetitle (const char *url)
169 xfree_null (title_buf);
170 xfree_null (curr_url);
171 title_buf = (char *)xmalloc (strlen (url) + 20);
172 curr_url = xstrdup (url);
174 sprintf (title_buf, "Wget %s", curr_url);
175 SetConsoleTitle (title_buf);
178 /* Updates the console title with the percentage of the current file
181 ws_percenttitle (double percentage_float)
185 if (!title_buf || !curr_url)
188 percentage = (int) percentage_float;
190 /* Clamp percentage value. */
193 if (percentage > 100)
196 /* Only update the title when the percentage has changed. */
197 if (percentage == old_percentage)
200 old_percentage = percentage;
202 sprintf (title_buf, "Wget [%d%%] %s", percentage, curr_url);
203 SetConsoleTitle (title_buf);
206 /* Returns a pointer to the fully qualified name of the directory that
207 contains the Wget binary (wget.exe). The returned path does not have a
208 trailing path separator. Returns NULL on failure. */
212 static char *wspathsave = NULL;
216 char buf[MAX_PATH + 1];
220 len = GetModuleFileName (GetModuleHandle (NULL), buf, sizeof (buf));
221 if (!len || (len >= sizeof (buf)))
224 p = strrchr (buf, PATH_SEPARATOR);
229 wspathsave = xstrdup (buf);
235 /* Prevent Windows entering sleep/hibernation-mode while Wget is doing
236 a lengthy transfer. Windows does not, by default, consider network
237 activity in console-programs as activity! Works on Win-98/ME/2K
240 set_sleep_mode (void)
242 typedef DWORD (WINAPI *func_t) (DWORD);
243 func_t set_exec_state;
246 (func_t) GetProcAddress (GetModuleHandle ("KERNEL32.DLL"),
247 "SetThreadExecutionState");
250 set_exec_state (ES_SYSTEM_REQUIRED | ES_CONTINUOUS);
253 /* Perform Windows specific initialization. */
262 if (GetVersionEx (&os) == TRUE
263 && os.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS)
266 requested = MAKEWORD (1, 1);
267 err = WSAStartup (requested, &data);
270 fprintf (stderr, _("%s: Couldn't find usable socket driver.\n"),
275 if (data.wVersion < requested)
277 fprintf (stderr, _("%s: Couldn't find usable socket driver.\n"),
285 SetConsoleCtrlHandler (ws_handler, TRUE);
288 /* Replacement utime function for buggy Borland C++Builder 5.5 compiler.
289 (The Borland utime function only works on Windows NT.) */
291 #ifdef HACK_BCC_UTIME_BUG
293 borland_utime (const char *path, const struct utimbuf *times)
300 if ((fd = open (path, O_RDWR)) < 0)
303 ptr_tm = localtime (×->modtime);
304 ft.ft_tsec = ptr_tm->tm_sec >> 1;
305 ft.ft_min = ptr_tm->tm_min;
306 ft.ft_hour = ptr_tm->tm_hour;
307 ft.ft_day = ptr_tm->tm_mday;
308 ft.ft_month = ptr_tm->tm_mon + 1;
309 ft.ft_year = ptr_tm->tm_year - 80;
310 res = setftime (fd, &ft);
316 /* run_with_timeout Windows implementation. */
318 /* Stack size 0 uses default thread stack-size (reserve+commit).
319 Determined by what's in the PE header. */
320 #define THREAD_STACK_SIZE 0
324 void (*fun) (void *);
329 /* The callback that runs FUN(ARG) in a separate thread. This
330 function exists for two reasons: a) to not require FUN to be
331 declared WINAPI/__stdcall[1], and b) to retrieve Winsock errors,
332 which are per-thread. The latter is useful when FUN calls Winsock
333 functions, which is how run_with_timeout is used in Wget.
335 [1] MSVC can use __fastcall globally (cl /Gr) and on Watcom this is
336 the default (wcc386 -3r). */
339 thread_helper (void *arg)
341 struct thread_data *td = (struct thread_data *) arg;
343 /* Initialize Winsock error to what it was in the parent. That way
344 the subsequent call to WSAGetLastError will return the same value
345 if td->fun doesn't change Winsock error state. */
346 WSASetLastError (td->ws_error);
350 /* Return Winsock error to the caller, in case FUN ran Winsock
352 td->ws_error = WSAGetLastError ();
356 /* Call FUN(ARG), but don't allow it to run for more than TIMEOUT
357 seconds. Returns non-zero if the function was interrupted with a
358 timeout, zero otherwise.
360 This works by running FUN in a separate thread and terminating the
361 thread if it doesn't finish in the specified time. */
364 run_with_timeout (double seconds, void (*fun) (void *), void *arg)
366 static HANDLE thread_hnd = NULL;
367 struct thread_data thread_arg;
371 DEBUGP (("seconds %.2f, ", seconds));
380 /* Should never happen, but test for recursivety anyway. */
381 assert (thread_hnd == NULL);
383 thread_arg.fun = fun;
384 thread_arg.arg = arg;
385 thread_arg.ws_error = WSAGetLastError ();
386 thread_hnd = CreateThread (NULL, THREAD_STACK_SIZE, thread_helper,
387 &thread_arg, 0, &thread_id);
390 DEBUGP (("CreateThread() failed; %s\n", strerror (GetLastError ())));
391 goto blocking_fallback;
394 if (WaitForSingleObject (thread_hnd, (DWORD)(1000 * seconds))
397 /* Propagate error state (which is per-thread) to this thread,
398 so the caller can inspect it. */
399 WSASetLastError (thread_arg.ws_error);
400 DEBUGP (("Winsock error: %d\n", WSAGetLastError ()));
405 TerminateThread (thread_hnd, 1);
409 CloseHandle (thread_hnd); /* Clear-up after TerminateThread(). */