It looks like this change has caused some regressions in sysreg

http://www.reactos.org/testman/compare.php?ids=3934,3935

[email protected] wrote:
> Author: cgutman
> Date: Sun Aug 22 22:22:27 2010
> New Revision: 48593
>
> URL: http://svn.reactos.org/svn/reactos?rev=48593&view=rev
> Log:
> [DHCPCSVC]
> - Write the DNS servers in a REG_MULTI_SZ value
> [IPHLPAPI]
> - Rewrite the registry reading code
> - Use HeapFree to free memory from the allocated from heap
>
> Modified:
>     trunk/reactos/dll/win32/dhcpcsvc/dhcp/dhclient.c
>     trunk/reactos/dll/win32/iphlpapi/iphlpapi_private.h
>     trunk/reactos/dll/win32/iphlpapi/registry.c
>     trunk/reactos/dll/win32/iphlpapi/resinfo_reactos.c
>
> Modified: trunk/reactos/dll/win32/dhcpcsvc/dhcp/dhclient.c
> URL: 
> http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/dhcpcsvc/dhcp/dhclient.c?rev=48593&r1=48592&r2=48593&view=diff
> ==============================================================================
> --- trunk/reactos/dll/win32/dhcpcsvc/dhcp/dhclient.c [iso-8859-1] (original)
> +++ trunk/reactos/dll/win32/dhcpcsvc/dhcp/dhclient.c [iso-8859-1] Sun Aug 22 
> 22:22:27 2010
> @@ -507,24 +507,25 @@
>          char *nsbuf;
>          int i, addrs =
>              new_lease->options[DHO_DOMAIN_NAME_SERVERS].len / sizeof(ULONG);
> -
> -        nsbuf = malloc( addrs * sizeof(IP_ADDRESS_STRING) );
> +        int len = 0;
> +
> +        nsbuf = malloc( addrs * sizeof(IP_ADDRESS_STRING) + 1 );
>  
>          if( nsbuf) {
> -            nsbuf[0] = 0;
> +            memset(nsbuf, 0, addrs * sizeof(IP_ADDRESS_STRING) + 1);
>              for( i = 0; i < addrs; i++ ) {
>                  nameserver.len = sizeof(ULONG);
>                  memcpy( nameserver.iabuf,
>                          new_lease->options[DHO_DOMAIN_NAME_SERVERS].data +
>                          (i * sizeof(ULONG)), sizeof(ULONG) );
>                  strcat( nsbuf, piaddr(nameserver) );
> -                if( i != addrs-1 ) strcat( nsbuf, "," );
> +                len += strlen(nsbuf) + 1;
>              }
>  
>              DH_DbgPrint(MID_TRACE,("Setting DhcpNameserver: %s\n", nsbuf));
>  
> -            RegSetValueExA( RegKey, "DhcpNameServer", 0, REG_SZ,
> -                           (LPBYTE)nsbuf, strlen(nsbuf) + 1 );
> +            RegSetValueExA( RegKey, "DhcpNameServer", 0, REG_MULTI_SZ,
> +                           (LPBYTE)nsbuf, len + 1 );
>              free( nsbuf );
>          }
>  
>
> Modified: trunk/reactos/dll/win32/iphlpapi/iphlpapi_private.h
> URL: 
> http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/iphlpapi/iphlpapi_private.h?rev=48593&r1=48592&r2=48593&view=diff
> ==============================================================================
> --- trunk/reactos/dll/win32/iphlpapi/iphlpapi_private.h [iso-8859-1] 
> (original)
> +++ trunk/reactos/dll/win32/iphlpapi/iphlpapi_private.h [iso-8859-1] Sun Aug 
> 22 22:22:27 2010
> @@ -139,6 +139,7 @@
>  PWCHAR GetNthChildKeyName( HANDLE RegHandle, DWORD n );
>  void ConsumeChildKeyName( PWCHAR Name );
>  PWCHAR QueryRegistryValueString( HANDLE RegHandle, PWCHAR ValueName );
> +PWCHAR *QueryRegistryValueStringMulti( HANDLE RegHandle, PWCHAR ValueName );
>  void ConsumeRegValueString( PWCHAR NameServer );
>  BOOL isInterface( TDIEntityID *if_maybe );
>  BOOL hasArp( HANDLE tcpFile, TDIEntityID *arp_maybe );
>
> Modified: trunk/reactos/dll/win32/iphlpapi/registry.c
> URL: 
> http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/iphlpapi/registry.c?rev=48593&r1=48592&r2=48593&view=diff
> ==============================================================================
> --- trunk/reactos/dll/win32/iphlpapi/registry.c [iso-8859-1] (original)
> +++ trunk/reactos/dll/win32/iphlpapi/registry.c [iso-8859-1] Sun Aug 22 
> 22:22:27 2010
> @@ -66,25 +66,123 @@
>    if (Name) HeapFree( GetProcessHeap(), 0, Name );
>  }
>  
> -PWCHAR QueryRegistryValueString( HANDLE RegHandle, PWCHAR ValueName ) {
> -  PWCHAR Name;
> -  DWORD ReturnedSize = 0;
> +PVOID QueryRegistryValue(HANDLE RegHandle, PWCHAR ValueName, LPDWORD 
> RegistryType, LPDWORD Length)
> +{
> +    PVOID ReadValue = NULL;
> +    DWORD Error;
>  
> -  if (RegQueryValueExW( RegHandle, ValueName, NULL, NULL, NULL,
> -                     &ReturnedSize ) != 0) {
> -    return 0;
> -  } else {
> -    Name = malloc( ReturnedSize);
> -    RegQueryValueExW( RegHandle, ValueName, NULL, NULL, (PVOID)Name,
> -                   &ReturnedSize );
> -    return Name;
> -  }
> +    *Length = 0;
> +    *RegistryType = REG_NONE;
> +
> +    while (TRUE)
> +    {
> +        Error = RegQueryValueExW(RegHandle, ValueName, NULL, RegistryType, 
> ReadValue, Length);
> +        if (Error == ERROR_SUCCESS)
> +        {
> +            if (ReadValue) break;
> +        }
> +        else if (Error == ERROR_MORE_DATA)
> +        {
> +            HeapFree(GetProcessHeap(), 0, ReadValue);
> +        }
> +        else break;
> +        
> +        ReadValue = HeapAlloc(GetProcessHeap(), 0, *Length);
> +        if (!ReadValue) return NULL;
> +    }
> +
> +    if (Error != ERROR_SUCCESS)
> +    {
> +        if (ReadValue) HeapFree(GetProcessHeap(), 0, ReadValue);
> +
> +        *Length = 0;
> +        *RegistryType = REG_NONE;
> +        ReadValue = NULL;
> +    }
> +
> +    return ReadValue;
> +}
> +
> +PWCHAR TerminateReadString(PWCHAR String, DWORD Length)
> +{
> +    PWCHAR TerminatedString;
> +    
> +    TerminatedString = HeapAlloc(GetProcessHeap(), 0, Length + 
> sizeof(WCHAR));
> +    if (TerminatedString == NULL)
> +        return NULL;
> +
> +    memcpy(TerminatedString, String, Length);
> +
> +    TerminatedString[Length / sizeof(WCHAR)] = UNICODE_NULL;
> +    
> +    return TerminatedString;
> +}
> +
> +PWCHAR QueryRegistryValueString( HANDLE RegHandle, PWCHAR ValueName )
> +{
> +    PWCHAR String, TerminatedString;
> +    DWORD Type, Length;
> +    
> +    String = QueryRegistryValue(RegHandle, ValueName, &Type, &Length);
> +    if (!String) return NULL;
> +    if (Type != REG_SZ)
> +    {
> +        DbgPrint("Type mismatch for %S (%d != %d)\n", ValueName, Type, 
> REG_SZ);
> +        //HeapFree(GetProcessHeap(), 0, String);
> +        //return NULL;
> +    }
> +    
> +    TerminatedString = TerminateReadString(String, Length);
> +    HeapFree(GetProcessHeap(), 0, String);
> +    if (!TerminatedString) return NULL;
> +    
> +    return TerminatedString;
>  }
>  
>  void ConsumeRegValueString( PWCHAR Value ) {
> -  if (Value) free(Value);
> +  if (Value) HeapFree(GetProcessHeap(), 0, Value);
>  }
>  
>  PWCHAR *QueryRegistryValueStringMulti( HANDLE RegHandle, PWCHAR ValueName ) {
> -  return 0; /* FIXME if needed */
> +    PWCHAR String, TerminatedString, Tmp;
> +    PWCHAR *Table;
> +    DWORD Type, Length, i, j;
> +    
> +    String = QueryRegistryValue(RegHandle, ValueName, &Type, &Length);
> +    if (!String) return NULL;
> +    if (Type != REG_MULTI_SZ)
> +    {
> +        DbgPrint("Type mismatch for %S (%d != %d)\n", ValueName, Type, 
> REG_MULTI_SZ);
> +        //HeapFree(GetProcessHeap(), 0, String);
> +        //return NULL;
> +    }
> +    
> +    TerminatedString = TerminateReadString(String, Length);
> +    HeapFree(GetProcessHeap(), 0, String);
> +    if (!TerminatedString) return NULL;
> +
> +    for (Tmp = TerminatedString, i = 0; *Tmp; Tmp++, i++) while (*Tmp) Tmp++;
> +    
> +    Table = HeapAlloc(GetProcessHeap(), 0, (i + 1) * sizeof(PWCHAR));
> +    if (!Table)
> +    {
> +        HeapFree(GetProcessHeap(), 0, TerminatedString);
> +        return NULL;
> +    }
> +    
> +    for (Tmp = TerminatedString, j = 0; *Tmp; Tmp++, j++)
> +    {
> +        PWCHAR Orig = Tmp;
> +        
> +        for (i = 0; *Tmp; i++, Tmp++);
> +        
> +        Table[j] = HeapAlloc(GetProcessHeap(), 0, i * sizeof(WCHAR));
> +        memcpy(Table[j], Orig, i * sizeof(WCHAR));
> +    }
> +    
> +    Table[j] = NULL;
> +    
> +    HeapFree(GetProcessHeap(), 0, TerminatedString);
> +    
> +    return Table;
>  }
>
> Modified: trunk/reactos/dll/win32/iphlpapi/resinfo_reactos.c
> URL: 
> http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/iphlpapi/resinfo_reactos.c?rev=48593&r1=48592&r2=48593&view=diff
> ==============================================================================
> --- trunk/reactos/dll/win32/iphlpapi/resinfo_reactos.c [iso-8859-1] (original)
> +++ trunk/reactos/dll/win32/iphlpapi/resinfo_reactos.c [iso-8859-1] Sun Aug 
> 22 22:22:27 2010
> @@ -122,47 +122,24 @@
>  
>  void EnumNameServers( HANDLE RegHandle, PWCHAR Interface,
>                            PVOID Data, EnumNameServersFunc cb ) {
> -    PWCHAR NameServerString =
> -     QueryRegistryValueString(RegHandle, L"DhcpNameServer");
> +    PWCHAR *NameServerString =
> +     QueryRegistryValueStringMulti(RegHandle, L"DhcpNameServer");
> +    DWORD i;
>  
>      if (!NameServerString)
> -             NameServerString = QueryRegistryValueString(RegHandle, 
> L"NameServer");
> -
> -    if (NameServerString) {
> -    /* Now, count the non-empty comma separated */
> -     DWORD ch;
> -     DWORD LastNameStart = 0;
> -     for (ch = 0; NameServerString[ch]; ch++) {
> -         if (NameServerString[ch] == ',') {
> -             if (ch - LastNameStart > 0) { /* Skip empty entries */
> -                 PWCHAR NameServer =
> -                     malloc(((ch - LastNameStart) + 1) * sizeof(WCHAR));
> -                 if (NameServer) {
> -                     memcpy(NameServer,NameServerString + LastNameStart,
> -                                (ch - LastNameStart) * sizeof(WCHAR));
> -                     NameServer[ch - LastNameStart] = 0;
> -                     cb( Interface, NameServer, Data );
> -                     free(NameServer);
> -                     LastNameStart = ch +1;
> -                 }
> -             }
> -             LastNameStart = ch + 1; /* The first one after the comma */
> -         }
> -     }
> -     if (ch - LastNameStart > 0) { /* A last name? */
> -         PWCHAR NameServer = malloc(((ch - LastNameStart) + 1) * 
> sizeof(WCHAR));
> -            if (NameServer) {
> -             memcpy(NameServer,NameServerString + LastNameStart,
> -                    (ch - LastNameStart) * sizeof(WCHAR));
> -             NameServer[ch - LastNameStart] = 0;
> -             cb( Interface, NameServer, Data );
> -             free(NameServer);
> -            }
> -     }
> -     ConsumeRegValueString(NameServerString);
> -    }
> -}
> -
> +             NameServerString = QueryRegistryValueStringMulti(RegHandle, 
> L"NameServer");
> +    
> +    if (!NameServerString) return;
> +    
> +    for (i = 0; NameServerString[i]; i++)
> +    {
> +        cb(Interface, NameServerString[i], Data);
> +        
> +        HeapFree(GetProcessHeap(), 0, NameServerString[i]);
> +    }
> +    
> +    HeapFree(GetProcessHeap(), 0, NameServerString);
> +}
>  static void CreateNameServerListEnumNamesFuncCount( PWCHAR Interface,
>                                                   PWCHAR Server,
>                                                   PVOID _Data ) {
>
>
>
>   


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