/* Utility and Unix shadow routines for GNU Emacs support programs on NT.
- Copyright (C) 1994, 2001, 2002, 2003, 2004, 2005,
- 2006, 2007 Free Software Foundation, Inc.
+
+Copyright (C) 1994, 2001-2014 Free Software Foundation, Inc.
+
+Author: Geoff Voelker (voelker@cs.washington.edu)
+Created: 10-8-94
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA.
-
- Geoff Voelker (voelker@cs.washington.edu) 10-8-94
-*/
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include <windows.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <direct.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <ctype.h>
+#include <sys/timeb.h>
+#include <mbstring.h>
#include "ntlib.h"
+/* MinGW64 defines _TIMEZONE_DEFINED and defines 'struct timespec' in
+ its system headers. */
+#ifndef _TIMEZONE_DEFINED
+struct timezone
+{
+ int tz_minuteswest; /* minutes west of Greenwich */
+ int tz_dsttime; /* type of dst correction */
+};
+#endif
+
#define MAXPATHLEN _MAX_PATH
/* Emulate sleep...we could have done this with a define, but that
would necessitate including windows.h in the files that used it.
This is much easier. */
-void
-sleep(unsigned long seconds)
+unsigned
+sleep (unsigned seconds)
{
Sleep (seconds * 1000);
+ return 0;
}
/* Get the current working directory. */
static int getppid_ppid;
int
-getppid(void)
+getppid (void)
{
char *ppid;
DWORD result;
ppid = getenv ("EM_PARENT_PROCESS_ID");
if (!ppid)
{
- printf("no pid.\n");
+ printf ("no pid.\n");
return 0;
}
else
if (!getppid_parent)
{
- getppid_parent = OpenProcess (SYNCHRONIZE, FALSE, atoi(ppid));
+ getppid_parent = OpenProcess (SYNCHRONIZE, FALSE, atoi (ppid));
if (!getppid_parent)
{
printf ("Failed to open handle to parent process: %d\n",
- GetLastError());
+ GetLastError ());
exit (1);
}
}
return 1;
case WAIT_FAILED:
default:
- printf ("Checking parent status failed: %d\n", GetLastError());
+ printf ("Checking parent status failed: %d\n", GetLastError ());
exit (1);
}
}
char *
-getlogin ()
+getlogin (void)
{
static char user_name[256];
DWORD length = sizeof (user_name);
return name;
}
+unsigned
+getuid (void)
+{
+ return 0;
+}
+
+unsigned
+geteuid (void)
+{
+ return getuid ();
+}
+
+unsigned
+getgid (void)
+{
+ return 0;
+}
+
+unsigned
+getegid (void)
+{
+ return 0;
+}
+
int
-getuid ()
+setuid (unsigned uid)
{
return 0;
}
int
-setuid (int uid)
+setregid (unsigned rgid, unsigned gid)
{
return 0;
}
struct passwd *
-getpwuid (int uid)
+getpwuid (unsigned uid)
{
return NULL;
}
return NULL;
}
+/* This is needed because lib/gettime.c calls gettimeofday, which MSVC
+ doesn't have. Copied from w32.c. */
+void
+gettimeofday (struct timeval *tv, struct timezone *tz)
+{
+ struct _timeb tb;
+ _ftime (&tb);
+
+ tv->tv_sec = tb.time;
+ tv->tv_usec = tb.millitm * 1000L;
+ /* Implementation note: _ftime sometimes doesn't update the dstflag
+ according to the new timezone when the system timezone is
+ changed. We could fix that by using GetSystemTime and
+ GetTimeZoneInformation, but that doesn't seem necessary, since
+ Emacs always calls gettimeofday with the 2nd argument NULL (see
+ current_emacs_time). */
+ if (tz)
+ {
+ tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */
+ tz->tz_dsttime = tb.dstflag; /* type of dst correction */
+ }
+}
+
int
-fchown (int fd, int uid, int gid)
+fchown (int fd, unsigned uid, unsigned gid)
{
return 0;
}
}
FILE *
-sys_fopen(const char * path, const char * mode)
+sys_fopen (const char * path, const char * mode)
{
return fopen (path, mode);
}
return _chdir (path);
}
-/* arch-tag: 7b63fb83-70ee-4124-8822-54e53e5d0773
- (do not change this comment) */
+static FILETIME utc_base_ft;
+static long double utc_base;
+static int init = 0;
+
+static time_t
+convert_time (FILETIME ft)
+{
+ long double ret;
+
+ if (CompareFileTime (&ft, &utc_base_ft) < 0)
+ return 0;
+
+ ret = (long double) ft.dwHighDateTime
+ * 4096.0L * 1024.0L * 1024.0L + ft.dwLowDateTime;
+ ret -= utc_base;
+ return (time_t) (ret * 1e-7L);
+}
+
+static int
+is_exec (const char * name)
+{
+ char * p = strrchr (name, '.');
+ return
+ (p != NULL
+ && (stricmp (p, ".exe") == 0 ||
+ stricmp (p, ".com") == 0 ||
+ stricmp (p, ".bat") == 0 ||
+ stricmp (p, ".cmd") == 0));
+}
+
+/* FIXME? This is in config.nt now - is this still needed? */
+#define IS_DIRECTORY_SEP(x) ((x) == '/' || (x) == '\\')
+
+/* We need this because nt/inc/sys/stat.h defines struct stat that is
+ incompatible with the MS run-time libraries. */
+int
+stat (const char * path, struct stat * buf)
+{
+ WIN32_FIND_DATA wfd;
+ HANDLE fh;
+ int permission;
+ int len;
+ int rootdir = FALSE;
+ char *name = alloca (FILENAME_MAX);
+
+ if (!init)
+ {
+ /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
+ SYSTEMTIME st;
+
+ st.wYear = 1970;
+ st.wMonth = 1;
+ st.wDay = 1;
+ st.wHour = 0;
+ st.wMinute = 0;
+ st.wSecond = 0;
+ st.wMilliseconds = 0;
+
+ SystemTimeToFileTime (&st, &utc_base_ft);
+ utc_base = (long double) utc_base_ft.dwHighDateTime
+ * 4096.0L * 1024.0L * 1024.0L + utc_base_ft.dwLowDateTime;
+ init = 1;
+ }
+
+ if (path == NULL || buf == NULL || *path == '\0')
+ {
+ errno = EFAULT;
+ return -1;
+ }
+ if (_mbspbrk (path, "*?|<>\""))
+ {
+ errno = ENOENT;
+ return -1;
+ }
+
+ strcpy (name, path);
+ /* Remove trailing directory separator, unless name is the root
+ directory of a drive in which case ensure there is a trailing
+ separator. */
+ len = strlen (name);
+ rootdir = IS_DIRECTORY_SEP (name[0])
+ || (len == 3 && name[1] == ':' && IS_DIRECTORY_SEP (name[2]));
+ if (rootdir)
+ {
+ if (GetDriveType (name) < 2)
+ {
+ errno = ENOENT;
+ return -1;
+ }
+ memset (&wfd, 0, sizeof (wfd));
+ wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
+ wfd.ftCreationTime = utc_base_ft;
+ wfd.ftLastAccessTime = utc_base_ft;
+ wfd.ftLastWriteTime = utc_base_ft;
+ strcpy (wfd.cFileName, name);
+ }
+ else
+ {
+ if (IS_DIRECTORY_SEP (name[len-1]))
+ name[len - 1] = 0;
+
+ fh = FindFirstFile (name, &wfd);
+ if (fh == INVALID_HANDLE_VALUE)
+ {
+ errno = ENOENT;
+ return -1;
+ }
+ FindClose (fh);
+ }
+ buf->st_mode = (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ?
+ S_IFDIR : S_IFREG;
+ buf->st_nlink = 1;
+ buf->st_ino = 0;
+
+ if (name[0] && name[1] == ':')
+ buf->st_dev = tolower (name[0]) - 'a' + 1;
+ else
+ buf->st_dev = _getdrive ();
+ buf->st_rdev = buf->st_dev;
+
+ buf->st_size = wfd.nFileSizeLow;
+
+ /* Convert timestamps to Unix format. */
+ buf->st_mtime = convert_time (wfd.ftLastWriteTime);
+ buf->st_atime = convert_time (wfd.ftLastAccessTime);
+ if (buf->st_atime == 0) buf->st_atime = buf->st_mtime;
+ buf->st_ctime = convert_time (wfd.ftCreationTime);
+ if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime;
+
+ /* determine rwx permissions */
+ if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
+ permission = S_IREAD;
+ else
+ permission = S_IREAD | S_IWRITE;
+
+ if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+ permission |= S_IEXEC;
+ else if (is_exec (name))
+ permission |= S_IEXEC;
+
+ buf->st_mode |= permission | (permission >> 3) | (permission >> 6);
+
+ return 0;
+}
+
+int
+lstat (const char * path, struct stat * buf)
+{
+ return stat (path, buf);
+}
+
+/* Implementation of mkostemp for MS-Windows, to avoid race conditions
+ when using mktemp. Copied from w32.c.
+
+ This is used only in update-game-score.c. It is overkill for that
+ use case, since update-game-score renames the temporary file into
+ the game score file, which isn't atomic on MS-Windows anyway, when
+ the game score already existed before running the program, which it
+ almost always does. But using a simpler implementation just to
+ make a point is uneconomical... */
+
+int
+mkostemp (char * template, int flags)
+{
+ char * p;
+ int i, fd = -1;
+ unsigned uid = GetCurrentThreadId ();
+ int save_errno = errno;
+ static char first_char[] = "abcdefghijklmnopqrstuvwyz0123456789!%-_@#";
+
+ errno = EINVAL;
+ if (template == NULL)
+ return -1;
+
+ p = template + strlen (template);
+ i = 5;
+ /* replace up to the last 5 X's with uid in decimal */
+ while (--p >= template && p[0] == 'X' && --i >= 0)
+ {
+ p[0] = '0' + uid % 10;
+ uid /= 10;
+ }
+
+ if (i < 0 && p[0] == 'X')
+ {
+ i = 0;
+ do
+ {
+ p[0] = first_char[i];
+ if ((fd = open (template,
+ flags | _O_CREAT | _O_EXCL | _O_RDWR,
+ S_IRUSR | S_IWUSR)) >= 0
+ || errno != EEXIST)
+ {
+ if (fd >= 0)
+ errno = save_errno;
+ return fd;
+ }
+ }
+ while (++i < sizeof (first_char));
+ }
+
+ /* Template is badly formed or else we can't generate a unique name. */
+ return -1;
+}
+
+/* On Windows, you cannot rename into an existing file. */
+int
+sys_rename (const char *from, const char *to)
+{
+ int retval = rename (from, to);
+
+ if (retval < 0 && errno == EEXIST)
+ {
+ if (unlink (to) == 0)
+ retval = rename (from, to);
+ }
+ return retval;
+}
HCoop / bpt / emacs.git / blobdiff