/* Utility and Unix shadow routines for GNU Emacs on the Microsoft W32 API.
- Copyright (C) 1994, 1995, 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1994, 1995, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
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., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.
Geoff Voelker (voelker@cs.washington.edu) 7-29-94
*/
-
-
#include <stddef.h> /* for offsetof */
#include <stdlib.h>
#include <stdio.h>
#include "lisp.h"
#include <pwd.h>
+#include <grp.h>
#ifdef __GNUC__
#define _ANONYMOUS_UNION
#define _ANONYMOUS_STRUCT
#endif
#include <windows.h>
+#include <shlobj.h>
#ifdef HAVE_SOCKETS /* TCP connection support, if kernel can do it */
#include <sys/socket.h>
#include "w32heap.h"
#include "systime.h"
+typedef HRESULT (WINAPI * ShGetFolderPath_fn)
+ (IN HWND, IN int, IN HANDLE, IN DWORD, OUT char *);
+
void globals_of_w32 ();
extern Lisp_Object Vw32_downcase_file_names;
extern Lisp_Object Vw32_generate_fake_inodes;
extern Lisp_Object Vw32_get_true_file_attributes;
-extern Lisp_Object Vw32_num_mouse_buttons;
+extern int w32_num_mouse_buttons;
\f
/*
the_passwd_shell,
};
+static struct group the_group =
+{
+ /* There are no groups on NT, so we just return "root" as the
+ group name. */
+ "root",
+};
+
int
getuid ()
{
return NULL;
}
+struct group *
+getgrgid (gid_t gid)
+{
+ return &the_group;
+}
+
struct passwd *
getpwnam (char *name)
{
static const char * const tempdirs[] = {
"$TMPDIR", "$TEMP", "$TMP", "c:/"
};
+
int i;
+
const int imax = sizeof (tempdirs) / sizeof (tempdirs[0]);
/* Make sure they have a usable $TMPDIR. Many Emacs functions use
LPBYTE lpval;
DWORD dwType;
char locale_name[32];
+ struct stat ignored;
+ char default_home[MAX_PATH];
- static struct env_entry
+ static const struct env_entry
{
char * name;
char * def_value;
- } env_vars[] =
+ } dflt_envvars[] =
{
{"HOME", "C:/"},
{"PRELOAD_WINSOCK", NULL},
{"LANG", NULL},
};
+#define N_ENV_VARS sizeof(dflt_envvars)/sizeof(dflt_envvars[0])
+
+ /* We need to copy dflt_envvars[] and work on the copy because we
+ don't want the dumped Emacs to inherit the values of
+ environment variables we saw during dumping (which could be on
+ a different system). The defaults above must be left intact. */
+ struct env_entry env_vars[N_ENV_VARS];
+
+ for (i = 0; i < N_ENV_VARS; i++)
+ env_vars[i] = dflt_envvars[i];
+
+ /* For backwards compatibility, check if a .emacs file exists in C:/
+ If not, then we can try to default to the appdata directory under the
+ user's profile, which is more likely to be writable. */
+ if (stat ("C:/.emacs", &ignored) < 0)
+ {
+ HRESULT profile_result;
+ /* Dynamically load ShGetFolderPath, as it won't exist on versions
+ of Windows 95 and NT4 that have not been updated to include
+ MSIE 5. Also we don't link with shell32.dll by default. */
+ HMODULE shell32_dll;
+ ShGetFolderPath_fn get_folder_path;
+ shell32_dll = GetModuleHandle ("shell32.dll");
+ get_folder_path = (ShGetFolderPath_fn)
+ GetProcAddress (shell32_dll, "SHGetFolderPathA");
+
+ if (get_folder_path != NULL)
+ {
+ profile_result = get_folder_path (NULL, CSIDL_APPDATA, NULL,
+ 0, default_home);
+
+ /* If we can't get the appdata dir, revert to old behaviour. */
+ if (profile_result == S_OK)
+ env_vars[0].def_value = default_home;
+ }
+
+ /* Unload shell32.dll, it is not needed anymore. */
+ FreeLibrary (shell32_dll);
+ }
+
/* Get default locale info and use it for LANG. */
if (GetLocaleInfo (LOCALE_USER_DEFAULT,
LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP,
locale_name, sizeof (locale_name)))
{
- for (i = 0; i < (sizeof (env_vars) / sizeof (env_vars[0])); i++)
+ for (i = 0; i < N_ENV_VARS; i++)
{
if (strcmp (env_vars[i].name, "LANG") == 0)
{
_snprintf (buf, sizeof(buf)-1, "emacs_dir=%s", modname);
_putenv (strdup (buf));
}
+ /* Handle running emacs from the build directory: src/oo-spd/i386/ */
+
+ /* FIXME: should use substring of get_emacs_configuration ().
+ But I don't think the Windows build supports alpha, mips etc
+ anymore, so have taken the easy option for now. */
+ else if (p && stricmp (p, "\\i386") == 0)
+ {
+ *p = 0;
+ p = strrchr (modname, '\\');
+ if (p != NULL)
+ {
+ *p = 0;
+ p = strrchr (modname, '\\');
+ if (p && stricmp (p, "\\src") == 0)
+ {
+ char buf[SET_ENV_BUF_SIZE];
+
+ *p = 0;
+ for (p = modname; *p; p++)
+ if (*p == '\\') *p = '/';
+
+ _snprintf (buf, sizeof(buf)-1, "emacs_dir=%s", modname);
+ _putenv (strdup (buf));
+ }
+ }
+ }
}
- for (i = 0; i < (sizeof (env_vars) / sizeof (env_vars[0])); i++)
+ for (i = 0; i < N_ENV_VARS; i++)
{
if (!getenv (env_vars[i].name))
{
if (lpval)
{
- if (dwType == REG_EXPAND_SZ)
- {
- char buf1[SET_ENV_BUF_SIZE], buf2[SET_ENV_BUF_SIZE];
+ char buf1[SET_ENV_BUF_SIZE], buf2[SET_ENV_BUF_SIZE];
- ExpandEnvironmentStrings ((LPSTR) lpval, buf1, sizeof(buf1));
- _snprintf (buf2, sizeof(buf2)-1, "%s=%s", env_vars[i].name, buf1);
- _putenv (strdup (buf2));
- }
+ if (dwType == REG_EXPAND_SZ)
+ ExpandEnvironmentStrings ((LPSTR) lpval, buf1, sizeof(buf1));
else if (dwType == REG_SZ)
+ strcpy (buf1, lpval);
+ if (dwType == REG_EXPAND_SZ || dwType == REG_SZ)
{
- char buf[SET_ENV_BUF_SIZE];
-
- _snprintf (buf, sizeof(buf)-1, "%s=%s", env_vars[i].name, lpval);
- _putenv (strdup (buf));
+ _snprintf (buf2, sizeof(buf2)-1, "%s=%s", env_vars[i].name,
+ buf1);
+ _putenv (strdup (buf2));
}
if (!dont_free)
/* Determine if there is a middle mouse button, to allow parse_button
to decide whether right mouse events should be mouse-2 or
mouse-3. */
- XSETINT (Vw32_num_mouse_buttons, GetSystemMetrics (SM_CMOUSEBUTTONS));
+ w32_num_mouse_buttons = GetSystemMetrics (SM_CMOUSEBUTTONS);
init_user_info ();
}
void
gettimeofday (struct timeval *tv, struct timezone *tz)
{
- struct timeb tb;
+ struct _timeb tb;
_ftime (&tb);
tv->tv_sec = tb.time;
/* Support shares on a network resource as subdirectories of a read-only
root directory. */
static HANDLE wnet_enum_handle = INVALID_HANDLE_VALUE;
-HANDLE open_unc_volume (char *);
+HANDLE open_unc_volume (const char *);
char *read_unc_volume (HANDLE, char *, int);
void close_unc_volume (HANDLE);
}
HANDLE
-open_unc_volume (char *path)
+open_unc_volume (const char *path)
{
NETRESOURCE nr;
HANDLE henum;
nr.dwDisplayType = RESOURCEDISPLAYTYPE_SERVER;
nr.dwUsage = RESOURCEUSAGE_CONTAINER;
nr.lpLocalName = NULL;
- nr.lpRemoteName = map_w32_filename (path, NULL);
+ nr.lpRemoteName = (LPSTR)map_w32_filename (path, NULL);
nr.lpComment = NULL;
nr.lpProvider = NULL;
}
DWORD
-unc_volume_file_attributes (char *path)
+unc_volume_file_attributes (const char *path)
{
HANDLE henum;
DWORD attrs;
return _chmod (map_w32_filename (path, NULL), mode);
}
+int
+sys_chown (const char *path, uid_t owner, gid_t group)
+{
+ if (sys_chmod (path, _S_IREAD) == -1) /* check if file exists */
+ return -1;
+ return 0;
+}
+
int
sys_creat (const char * path, int mode)
{
}
int
-sys_setsockopt (int s, int level, int optname, const char * optval, int optlen)
+sys_setsockopt (int s, int level, int optname, const void * optval, int optlen)
{
if (winsock_lib == NULL)
{
if (fd_info[s].flags & FILE_SOCKET)
{
int rc = pfn_setsockopt (SOCK_HANDLE (s), level, optname,
- optval, optlen);
+ (const char *)optval, optlen);
if (rc == SOCKET_ERROR)
set_errno ();
return rc;
{
int rc;
- if (fd < 0 || fd >= MAXDESC)
+ if (fd < 0)
{
errno = EBADF;
return -1;
}
- if (fd_info[fd].cp)
+ if (fd < MAXDESC && fd_info[fd].cp)
{
child_process * cp = fd_info[fd].cp;
because socket handles are fully fledged kernel handles. */
rc = _close (fd);
- if (rc == 0)
+ if (rc == 0 && fd < MAXDESC)
fd_info[fd].flags = 0;
return rc;
int new_fd;
new_fd = _dup (fd);
- if (new_fd >= 0)
+ if (new_fd >= 0 && new_fd < MAXDESC)
{
/* duplicate our internal info as well */
fd_info[new_fd] = fd_info[fd];
if (rc == 0)
{
- flags = FILE_PIPE | FILE_READ | FILE_BINARY;
- fd_info[phandles[0]].flags = flags;
+ /* Protect against overflow, since Windows can open more handles than
+ our fd_info array has room for. */
+ if (phandles[0] >= MAXDESC || phandles[1] >= MAXDESC)
+ {
+ _close (phandles[0]);
+ _close (phandles[1]);
+ rc = -1;
+ }
+ else
+ {
+ flags = FILE_PIPE | FILE_READ | FILE_BINARY;
+ fd_info[phandles[0]].flags = flags;
- flags = FILE_PIPE | FILE_WRITE | FILE_BINARY;
- fd_info[phandles[1]].flags = flags;
+ flags = FILE_PIPE | FILE_WRITE | FILE_BINARY;
+ fd_info[phandles[1]].flags = flags;
+ }
}
return rc;
}
/* From ntproc.c */
-extern Lisp_Object Vw32_pipe_read_delay;
+extern int w32_pipe_read_delay;
/* Function to do blocking read of one byte, needed to implement
select. It is only allowed on sockets and pipes. */
shell on NT is very slow if we don't do this. */
if (rc > 0)
{
- int wait = XINT (Vw32_pipe_read_delay);
+ int wait = w32_pipe_read_delay;
if (wait > 0)
Sleep (wait);
DWORD waiting;
char * orig_buffer = buffer;
- if (fd < 0 || fd >= MAXDESC)
+ if (fd < 0)
{
errno = EBADF;
return -1;
}
- if (fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET))
+ if (fd < MAXDESC && fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET))
{
child_process *cp = fd_info[fd].cp;
{
int nchars;
- if (fd < 0 || fd >= MAXDESC)
+ if (fd < 0)
{
errno = EBADF;
return -1;
}
- if (fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET))
+ if (fd < MAXDESC && fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET))
{
if ((fd_info[fd].flags & FILE_WRITE) == 0)
{
}
#ifdef HAVE_SOCKETS
- if (fd_info[fd].flags & FILE_SOCKET)
+ if (fd < MAXDESC && fd_info[fd].flags & FILE_SOCKET)
{
unsigned long nblock = 0;
if (winsock_lib == NULL) abort ();
objs[1] = decode_env_path (0, (getenv ("EMACSLOADPATH")));
full_load_path = Fappend (2, objs);
init_file = build_string ("term/w32-win");
- fd = openp (full_load_path, init_file, Vload_suffixes, NULL, Qnil);
+ fd = openp (full_load_path, init_file, Fget_load_suffixes (), NULL, Qnil);
if (fd < 0)
{
Lisp_Object load_path_print = Fprin1_to_string (full_load_path, Qnil);
char *init_file_name = SDATA (init_file);
char *load_path = SDATA (load_path_print);
- char *buffer = alloca (1024);
+ char *buffer = alloca (1024
+ + strlen (init_file_name)
+ + strlen (load_path));
sprintf (buffer,
"The Emacs Windows initialization file \"%s.el\" "
/* shutdown the socket interface if necessary */
term_winsock ();
#endif
+
+ term_w32select ();
}
void
}
/* end of nt.c */
+
+/* arch-tag: 90442dd3-37be-482b-b272-ac752e3049f1
+ (do not change this comment) */