newlib/winsup/cygwin/registry.cc

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/* registry.cc: registry interface
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
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2005, 2006, 2007, 2008 Red Hat, Inc.
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This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
#include "registry.h"
#include "security.h"
#include <cygwin/version.h>
#include "cygerrno.h"
#include "path.h"
#include "fhandler.h"
#include "dtable.h"
#include "cygheap.h"
* Makefile.in (DLL_OFILES): Add tls_pbuf.o. * autoload.cc (CreateDesktopW): Replace CreateDesktopA. (CreateWindowStationW): Replace CreateWindowStationA. (GetUserObjectInformationW): Replace GetUserObjectInformationA. * cygheap.h (cwdstuff::get): Assume default buffer size NT_MAX_PATH. * cygtls.cc (_cygtls::remove): Free temporary TLS path buffers. * cygtls.h (TP_NUM_C_BUFS): Define. (TP_NUM_W_BUFS): Define. (class tls_pathbuf): New class to store pointers to thread local temporary path buffers. (_local_storage::pathbufs): New member. * environ.cc (win_env::add_cache): Use temporary TLS path buffer instead of stack based buffer. (posify): Get temporary outenv buffer from calling function. (environ_init): Create temporary TLS path buffer for posify. (build_env): Create Windows environment block as WCHAR buffer. * environ.h (build_env): Change declaration accordingly. * external.cc (sync_winenv): Accommodate build_env change. * fhandler_console.cc (fhandler_console::need_invisible): Use GetUserObjectInformationW and CreateWindowStationW. * fhandler_process.cc (format_process_maps): Use temporary TLS path buffer instead of stack based buffer. * fork.cc (frok::parent): Convert to use CreateProcessW. * path.cc: Throughout use temporary TLS path buffers instead of stack based buffer. Replace checks for CYG_MAX_PATH by checks for NT_MAX_PATH. (getfileattr): New function to replace GetFileAttributesA. (normalize_win32_path): Remove Win32 and NT long path prefixes. (getwd): Assume PATH_MAX + 1 buffer per SUSv3. * path.h (class path_conv): Set path buffer to size NT_MAX_PATH. (iswdrive): Define. * pinfo.cc (commune_process): Use temporary TLS path buffer instead of stack based buffer. * registry.cc (get_registry_hive_path): Ditto. (load_registry_hive): Ditto. * spawn.cc (spawn_guts): Convert to use CreateProcessW and CreateProcessAsUserW. (av::fixup): Open/close file using NtOpenFile/NtClose. * syscalls.cc (mknod_worker): Allow PATH_MAX file name. (mknod32): Ditto. (getusershell): Ditto. * tls_pbuf.cc: New file implementing tls_pathbuf and tmp_pathbuf methods. * tls_pbuf.h: New header for files using tmp_pathbuf. * tlsoffsets.h: Regenerate. * winsup.h (NT_MAX_PATH): Define as 32767 to avoid USHORT overflow.
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#include "tls_pbuf.h"
#include <wchar.h>
static const char cygnus_class[] = "cygnus";
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reg_key::reg_key (HKEY top, REGSAM access, ...): _disposition (0)
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{
va_list av;
va_start (av, access);
build_reg (top, access, av);
va_end (av);
}
/* Opens a key under the appropriate Cygwin key.
Do not use HKCU per MS KB 199190 */
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reg_key::reg_key (bool isHKLM, REGSAM access, ...): _disposition (0)
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{
va_list av;
HKEY top;
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if (isHKLM)
top = HKEY_LOCAL_MACHINE;
else
{
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char name[128];
const char *names[2] = {cygheap->user.get_windows_id (name), ".DEFAULT"};
for (int i = 0; i < 2; i++)
{
key_is_invalid = RegOpenKeyEx (HKEY_USERS, names[i], 0, access, &top);
if (key_is_invalid == ERROR_SUCCESS)
goto OK;
debug_printf ("HKU\\%s failed, Win32 error %ld", names[i], key_is_invalid);
}
return;
}
OK:
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new (this) reg_key (top, access, "SOFTWARE",
CYGWIN_INFO_CYGWIN_REGISTRY_NAME, NULL);
if (top != HKEY_LOCAL_MACHINE)
RegCloseKey (top);
if (key_is_invalid)
return;
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top = key;
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va_start (av, access);
build_reg (top, access, av);
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va_end (av);
if (top != key)
RegCloseKey (top);
}
void
reg_key::build_reg (HKEY top, REGSAM access, va_list av)
{
char *name;
HKEY r = top;
key_is_invalid = 0;
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/* FIXME: Most of the time a valid mount area should exist. Perhaps
we should just try an open of the correct key first and only resort
to this method in the unlikely situation that it's the first time
the current mount areas are being used. */
while ((name = va_arg (av, char *)) != NULL)
{
int res = RegCreateKeyExA (r,
name,
0,
(char *) cygnus_class,
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REG_OPTION_NON_VOLATILE,
access,
&sec_none_nih,
&key,
&_disposition);
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if (r != top)
RegCloseKey (r);
r = key;
if (res != ERROR_SUCCESS)
{
key_is_invalid = res;
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debug_printf ("failed to create key %s in the registry", name);
break;
}
}
}
/* Given the current registry key, return the specific int value
requested. Return def on failure. */
int
reg_key::get_int (const char *name, int def)
{
DWORD type;
DWORD dst;
DWORD size = sizeof (dst);
if (key_is_invalid)
return def;
LONG res = RegQueryValueExA (key, name, 0, &type, (unsigned char *) &dst,
&size);
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if (type != REG_DWORD || res != ERROR_SUCCESS)
return def;
return dst;
}
/* Given the current registry key, set a specific int value. */
int
reg_key::set_int (const char *name, int val)
{
DWORD value = val;
if (key_is_invalid)
return key_is_invalid;
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return (int) RegSetValueExA (key, name, 0, REG_DWORD,
(unsigned char *) &value, sizeof (value));
}
/* Given the current registry key, return the specific string value
requested. Return zero on success, non-zero on failure. */
int
reg_key::get_string (const char *name, char *dst, size_t max, const char * def)
{
DWORD size = max;
DWORD type;
LONG res;
if (key_is_invalid)
res = key_is_invalid;
else
res = RegQueryValueExA (key, name, 0, &type, (unsigned char *) dst, &size);
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if ((def != 0) && ((type != REG_SZ) || (res != ERROR_SUCCESS)))
strcpy (dst, def);
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return (int) res;
}
/* Given the current registry key, set a specific string value. */
int
reg_key::set_string (const char *name, const char *src)
{
if (key_is_invalid)
return key_is_invalid;
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return (int) RegSetValueExA (key, name, 0, REG_SZ, (unsigned char*) src,
strlen (src) + 1);
}
/* Return the handle to key. */
HKEY
reg_key::get_key ()
{
return key;
}
/* Delete subkey of current key. Returns the error code from the
RegDeleteKeyA invocation. */
int
reg_key::kill (const char *name)
{
if (key_is_invalid)
return key_is_invalid;
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return RegDeleteKeyA (key, name);
}
/* Delete the value specified by name of current key. Returns the error code
from the RegDeleteValueA invocation. */
int
reg_key::killvalue (const char *name)
{
if (key_is_invalid)
return key_is_invalid;
return RegDeleteValueA (key, name);
}
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reg_key::~reg_key ()
{
if (!key_is_invalid)
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RegCloseKey (key);
key_is_invalid = 1;
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}
PWCHAR
get_registry_hive_path (const PWCHAR name, PWCHAR path)
{
WCHAR key[256], *kend;
HKEY hkey;
if (!name || !path)
return NULL;
kend = wcpcpy (key, L"SOFTWARE\\Microsoft\\WindowsNT\\CurrentVersion\\ProfileList\\");
wcpcpy (kend, name);
if (!RegOpenKeyExW (HKEY_LOCAL_MACHINE, key, 0, KEY_READ, &hkey))
{
* Makefile.in (DLL_OFILES): Add tls_pbuf.o. * autoload.cc (CreateDesktopW): Replace CreateDesktopA. (CreateWindowStationW): Replace CreateWindowStationA. (GetUserObjectInformationW): Replace GetUserObjectInformationA. * cygheap.h (cwdstuff::get): Assume default buffer size NT_MAX_PATH. * cygtls.cc (_cygtls::remove): Free temporary TLS path buffers. * cygtls.h (TP_NUM_C_BUFS): Define. (TP_NUM_W_BUFS): Define. (class tls_pathbuf): New class to store pointers to thread local temporary path buffers. (_local_storage::pathbufs): New member. * environ.cc (win_env::add_cache): Use temporary TLS path buffer instead of stack based buffer. (posify): Get temporary outenv buffer from calling function. (environ_init): Create temporary TLS path buffer for posify. (build_env): Create Windows environment block as WCHAR buffer. * environ.h (build_env): Change declaration accordingly. * external.cc (sync_winenv): Accommodate build_env change. * fhandler_console.cc (fhandler_console::need_invisible): Use GetUserObjectInformationW and CreateWindowStationW. * fhandler_process.cc (format_process_maps): Use temporary TLS path buffer instead of stack based buffer. * fork.cc (frok::parent): Convert to use CreateProcessW. * path.cc: Throughout use temporary TLS path buffers instead of stack based buffer. Replace checks for CYG_MAX_PATH by checks for NT_MAX_PATH. (getfileattr): New function to replace GetFileAttributesA. (normalize_win32_path): Remove Win32 and NT long path prefixes. (getwd): Assume PATH_MAX + 1 buffer per SUSv3. * path.h (class path_conv): Set path buffer to size NT_MAX_PATH. (iswdrive): Define. * pinfo.cc (commune_process): Use temporary TLS path buffer instead of stack based buffer. * registry.cc (get_registry_hive_path): Ditto. (load_registry_hive): Ditto. * spawn.cc (spawn_guts): Convert to use CreateProcessW and CreateProcessAsUserW. (av::fixup): Open/close file using NtOpenFile/NtClose. * syscalls.cc (mknod_worker): Allow PATH_MAX file name. (mknod32): Ditto. (getusershell): Ditto. * tls_pbuf.cc: New file implementing tls_pathbuf and tmp_pathbuf methods. * tls_pbuf.h: New header for files using tmp_pathbuf. * tlsoffsets.h: Regenerate. * winsup.h (NT_MAX_PATH): Define as 32767 to avoid USHORT overflow.
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tmp_pathbuf tp;
PWCHAR buf = tp.w_get ();
DWORD type, siz;
path[0] = L'\0';
if (!RegQueryValueExW (hkey, L"ProfileImagePath", 0, &type,
* Makefile.in (DLL_OFILES): Add tls_pbuf.o. * autoload.cc (CreateDesktopW): Replace CreateDesktopA. (CreateWindowStationW): Replace CreateWindowStationA. (GetUserObjectInformationW): Replace GetUserObjectInformationA. * cygheap.h (cwdstuff::get): Assume default buffer size NT_MAX_PATH. * cygtls.cc (_cygtls::remove): Free temporary TLS path buffers. * cygtls.h (TP_NUM_C_BUFS): Define. (TP_NUM_W_BUFS): Define. (class tls_pathbuf): New class to store pointers to thread local temporary path buffers. (_local_storage::pathbufs): New member. * environ.cc (win_env::add_cache): Use temporary TLS path buffer instead of stack based buffer. (posify): Get temporary outenv buffer from calling function. (environ_init): Create temporary TLS path buffer for posify. (build_env): Create Windows environment block as WCHAR buffer. * environ.h (build_env): Change declaration accordingly. * external.cc (sync_winenv): Accommodate build_env change. * fhandler_console.cc (fhandler_console::need_invisible): Use GetUserObjectInformationW and CreateWindowStationW. * fhandler_process.cc (format_process_maps): Use temporary TLS path buffer instead of stack based buffer. * fork.cc (frok::parent): Convert to use CreateProcessW. * path.cc: Throughout use temporary TLS path buffers instead of stack based buffer. Replace checks for CYG_MAX_PATH by checks for NT_MAX_PATH. (getfileattr): New function to replace GetFileAttributesA. (normalize_win32_path): Remove Win32 and NT long path prefixes. (getwd): Assume PATH_MAX + 1 buffer per SUSv3. * path.h (class path_conv): Set path buffer to size NT_MAX_PATH. (iswdrive): Define. * pinfo.cc (commune_process): Use temporary TLS path buffer instead of stack based buffer. * registry.cc (get_registry_hive_path): Ditto. (load_registry_hive): Ditto. * spawn.cc (spawn_guts): Convert to use CreateProcessW and CreateProcessAsUserW. (av::fixup): Open/close file using NtOpenFile/NtClose. * syscalls.cc (mknod_worker): Allow PATH_MAX file name. (mknod32): Ditto. (getusershell): Ditto. * tls_pbuf.cc: New file implementing tls_pathbuf and tmp_pathbuf methods. * tls_pbuf.h: New header for files using tmp_pathbuf. * tlsoffsets.h: Regenerate. * winsup.h (NT_MAX_PATH): Define as 32767 to avoid USHORT overflow.
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(BYTE *)buf, (siz = NT_MAX_PATH, &siz)))
ExpandEnvironmentStringsW (buf, path, NT_MAX_PATH);
RegCloseKey (hkey);
if (path[0])
return path;
}
debug_printf ("HKLM\\%W not found", key);
return NULL;
}
void
load_registry_hive (const PWCHAR name)
{
* Makefile.in (DLL_OFILES): Add tls_pbuf.o. * autoload.cc (CreateDesktopW): Replace CreateDesktopA. (CreateWindowStationW): Replace CreateWindowStationA. (GetUserObjectInformationW): Replace GetUserObjectInformationA. * cygheap.h (cwdstuff::get): Assume default buffer size NT_MAX_PATH. * cygtls.cc (_cygtls::remove): Free temporary TLS path buffers. * cygtls.h (TP_NUM_C_BUFS): Define. (TP_NUM_W_BUFS): Define. (class tls_pathbuf): New class to store pointers to thread local temporary path buffers. (_local_storage::pathbufs): New member. * environ.cc (win_env::add_cache): Use temporary TLS path buffer instead of stack based buffer. (posify): Get temporary outenv buffer from calling function. (environ_init): Create temporary TLS path buffer for posify. (build_env): Create Windows environment block as WCHAR buffer. * environ.h (build_env): Change declaration accordingly. * external.cc (sync_winenv): Accommodate build_env change. * fhandler_console.cc (fhandler_console::need_invisible): Use GetUserObjectInformationW and CreateWindowStationW. * fhandler_process.cc (format_process_maps): Use temporary TLS path buffer instead of stack based buffer. * fork.cc (frok::parent): Convert to use CreateProcessW. * path.cc: Throughout use temporary TLS path buffers instead of stack based buffer. Replace checks for CYG_MAX_PATH by checks for NT_MAX_PATH. (getfileattr): New function to replace GetFileAttributesA. (normalize_win32_path): Remove Win32 and NT long path prefixes. (getwd): Assume PATH_MAX + 1 buffer per SUSv3. * path.h (class path_conv): Set path buffer to size NT_MAX_PATH. (iswdrive): Define. * pinfo.cc (commune_process): Use temporary TLS path buffer instead of stack based buffer. * registry.cc (get_registry_hive_path): Ditto. (load_registry_hive): Ditto. * spawn.cc (spawn_guts): Convert to use CreateProcessW and CreateProcessAsUserW. (av::fixup): Open/close file using NtOpenFile/NtClose. * syscalls.cc (mknod_worker): Allow PATH_MAX file name. (mknod32): Ditto. (getusershell): Ditto. * tls_pbuf.cc: New file implementing tls_pathbuf and tmp_pathbuf methods. * tls_pbuf.h: New header for files using tmp_pathbuf. * tlsoffsets.h: Regenerate. * winsup.h (NT_MAX_PATH): Define as 32767 to avoid USHORT overflow.
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tmp_pathbuf tp;
PWCHAR path = tp.w_get ();
HKEY hkey;
LONG ret;
if (!name)
return;
/* Check if user hive is already loaded. */
if (!RegOpenKeyExW (HKEY_USERS, name, 0, KEY_READ, &hkey))
{
debug_printf ("User registry hive for %W already exists", name);
RegCloseKey (hkey);
return;
}
if (get_registry_hive_path (name, path))
{
wcscat (path, L"\\NTUSER.DAT");
if ((ret = RegLoadKeyW (HKEY_USERS, name, path)) != ERROR_SUCCESS)
debug_printf ("Loading user registry hive for %W failed: %d", name, ret);
}
}