mshtml: Don't crash in QueryInterface if uri is NULL.
[wine] / dlls / tapi32 / assisted.c
1 /*
2  * TAPI32 Assisted Telephony
3  *
4  * Copyright 1999  Andreas Mohr
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library 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 GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19  */
20
21 #include <stdarg.h>
22 #include <stdio.h>
23 #include "windef.h"
24 #include "winbase.h"
25 #include "winreg.h"
26 #include "tapi.h"
27 #include "wine/debug.h"
28
29 WINE_DEFAULT_DEBUG_CHANNEL(tapi);
30
31 /***********************************************************************
32  *              tapiGetLocationInfo (TAPI32.@)
33  */
34 DWORD WINAPI tapiGetLocationInfoA(LPSTR lpszCountryCode, LPSTR lpszCityCode)
35 {
36     HKEY hkey, hsubkey;
37     DWORD currid;
38     DWORD valsize;
39     DWORD type;
40     DWORD bufsize;
41     BYTE buf[100];
42     char szlockey[20];
43     if(!RegOpenKeyA(HKEY_LOCAL_MACHINE,
44            "Software\\Microsoft\\Windows\\CurrentVersion\\Telephony\\Locations",
45            &hkey) != ERROR_SUCCESS) { 
46         valsize = sizeof( DWORD);
47         if(!RegQueryValueExA(hkey, "CurrentID", 0, &type, (LPBYTE) &currid,
48                     &valsize) && type == REG_DWORD) {
49             /* find a subkey called Location1, Location2... */
50             sprintf( szlockey, "Location%lu", currid); 
51             if( !RegOpenKeyA( hkey, szlockey, &hsubkey)) {
52                 if( lpszCityCode) {
53                     bufsize=sizeof(buf);
54                     if( !RegQueryValueExA( hsubkey, "AreaCode", 0, &type, buf,
55                                 &bufsize) && type == REG_SZ) {
56                         lstrcpynA( lpszCityCode, (char *) buf, 8);
57                     } else 
58                         lpszCityCode[0] = '\0';
59                 }
60                 if( lpszCountryCode) {
61                     bufsize=sizeof(buf);
62                     if( !RegQueryValueExA( hsubkey, "Country", 0, &type, buf,
63                                 &bufsize) && type == REG_DWORD)
64                         snprintf( lpszCountryCode, 8, "%lu", *(LPDWORD) buf );
65                     else
66                         lpszCountryCode[0] = '\0';
67                 }
68                 TRACE("(%p \"%s\", %p \"%s\"): success.\n",
69                         lpszCountryCode, debugstr_a(lpszCountryCode),
70                         lpszCityCode, debugstr_a(lpszCityCode));
71                 RegCloseKey( hkey);
72                 RegCloseKey( hsubkey);
73                 return 0; /* SUCCESS */
74             }
75         }
76         RegCloseKey( hkey);
77     }
78     WARN("(%p, %p): failed (no telephony registry entries?).\n",
79             lpszCountryCode, lpszCityCode);
80     return TAPIERR_REQUESTFAILED;
81 }
82
83 /***********************************************************************
84  *              tapiRequestMakeCall (TAPI32.@)
85  */
86 DWORD WINAPI tapiRequestMakeCallA(LPCSTR lpszDestAddress, LPCSTR lpszAppName,
87                                  LPCSTR lpszCalledParty, LPCSTR lpszComment)
88 {
89     FIXME("(%s, %s, %s, %s): stub.\n", lpszDestAddress, lpszAppName, lpszCalledParty, lpszComment);
90     return 0;
91 }