C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Reading a string in VC++          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Rajeev Guest Posted: Fri Mar 05, 2004 1:19 am    Post subject: Reading a string in VC++ Hi I am a VB programmer. I need to do a simple thing in VC++. char strNWUserName[256]; DWORD dBufferLength = 256; HRESULT hr; hr = WNetGetUserA("DOMAIN", strNWUserName, &dBufferLength); The strNWUserName returns .CN=UserName.O=DOMAIN I just need to extract the UserName from this using VC++. I don't need the .CN= and O.=DOMAIN. I am typing the code in VB to do this. Public Function NWUserName() As String Dim strNWUserName As String Dim lngBufferLen As Long Dim lngResult As Long Dim lngSecondDotPos As Long Const NO_ERROR = 0 Const ERROR_NOT_CONNECTED = 2250& Const ERROR_MORE_DATA = 234& Const ERROR_NO_NETWORK = 1222& Const ERROR_EXTENDED_ERROR = 1208& Const ERROR_NO_NET_OR_BAD_PATH = 1203& Const cNWResource = "DOMAIN" 'name of a network resource this user 'is connected to (name of the NDS tree, for example) strNWUserName = String$(255, vbNullChar) lngBufferLen = Len(strNWUserName) lngResult = apiWNetGetUser(cNWResource, strNWUserName, lngBufferLen) If lngResult = NO_ERROR Then 'on Netware the API returns full distinguished name, 'parse it here to get the login name 'eg: .CN=Login.O=Container -Login If strNWUserName Like ".CN=*.O=*" Then lngSecondDotPos = InStr(1, strNWUserName, ".O=", vbTextCompare) NWUserName = Mid$(strNWUserName, 5, lngSecondDotPos - 5) Else Err.Raise vbObjectError Or 1001, "NWUserName", _ "Not a Netware login name." End If Else Select Case lngResult Case ERROR_NOT_CONNECTED Err.Raise vbObjectError Or 1002, "NWUserName", "'" & _ cNWResource & "' is not a connected network resource." Case ERROR_MORE_DATA Err.Raise vbObjectError Or 1003, "NWUserName", _ "More entries are available with subsequent calls." Case ERROR_NO_NETWORK Err.Raise vbObjectError Or 1004, "NWUserName", _ "The network is unavailable." Case ERROR_EXTENDED_ERROR Err.Raise vbObjectError Or 1005, "NWUserName", _ "A network-specific error has occured." Case ERROR_NO_NET_OR_BAD_PATH Err.Raise vbObjectError Or 1006, "NWUserName", _ "No network provider accepted the given network path '" & _ cNWResource & "'." Case Else Err.Raise vbObjectError Or 1007, "NWUserName", _ "An unknown error has occured." End Select End If End Function Back to top John Harrison Guest Posted: Fri Mar 05, 2004 6:37 am    Post subject: Re: Reading a string in VC++ "Rajeev" <navvyus (AT) yahoo (DOT) com> wrote Quote: Hi I am a VB programmer. I need to do a simple thing in VC++. char strNWUserName[256]; DWORD dBufferLength = 256; HRESULT hr; hr = WNetGetUserA("DOMAIN", strNWUserName, &dBufferLength); The strNWUserName returns .CN=UserName.O=DOMAIN I just need to extract the UserName from this using VC++. I don't need the .CN= and O.=DOMAIN. Simply enough, you just have to learn C++ string handling instead of VB string handling. How about this (untested), I'm assuming that strNWUserName is a null terminated C string, which I immediately convert to a C++ string. #include <string> using namespace std; char strNWUserName[256]; DWORD dBufferLength = 256; hr = WNetGetUserA("DOMAIN", strNWUserName, &dBufferLength); string user_name(strNWUserName); if (user_name.compare(0, 4, ".CN=") != 0) { // not a NW username return; } string::size_type pos = user_name.find(".O=", 4); if (pos == string::npos) { // not a NW username return; } string nw_user_name = user_name.substr(4, pos - 4); john Back to top Chris ( Val ) Guest Posted: Fri Mar 05, 2004 11:44 am    Post subject: Re: Reading a string in VC++ "Rajeev" <navvyus (AT) yahoo (DOT) com> wrote Quote: Hi I am a VB programmer. I need to do a simple thing in VC++. char strNWUserName[256]; DWORD dBufferLength = 256; HRESULT hr; hr = WNetGetUserA("DOMAIN", strNWUserName, &dBufferLength); The strNWUserName returns .CN=UserName.O=DOMAIN I just need to extract the UserName from this using VC++. I don't need the .CN= and O.=DOMAIN. I am typing the code in VB to do this. . # include <iostream> # include <ostream> # include <string> inline std::string ExtractUsername( const std::string& Source ) { static const std::string Token( "CN=" ); std::string::size_type Start( Source.find( Token ) ); std::string::size_type End( Source.find_first_of( '.', Start + Token.size() ) ); if( Start != std::string::npos && End != std::string::npos ) return Source.substr( Start + Token.size(), End - Start - Token.size() ); return std::string(); } int main() { std::string UserName = ExtractUsername( ".CN=UserName.O=DOMAIN" ); std::cout << UserName << std::endl; return 0; } Cheers. Chris Val Back to top Rajeev Guest Posted: Sat Mar 06, 2004 12:33 am    Post subject: Re: Reading a string in VC++ Thanks guys Would you know how to do this using CString class. Thanks Back to top Sharad Kala Guest Posted: Sat Mar 06, 2004 6:17 am    Post subject: Re: Reading a string in VC++ "Rajeev" <navvyus (AT) yahoo (DOT) com> wrote Quote: Thanks guys Would you know how to do this using CString class. Yes, people might be knowing so but it is offtopic here. It's an MFC class, try asking in microsoft.public.* newsgroups. <OT> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmfc98/html/_m fc_cstring_class_members.asp </OT> Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         C++Talk.NET Forum Index -> C++ language (comp.lang.c++) All times are GMT Page 1 of 1   Jump to: Select a forum C/C++----------------C LanguageC Language (Moderated)C++ Language (Moderated)C++ language (comp.lang.c++)C++ language, library and standards Non-English C/C++ Newsgroups----------------C++ (German)C++ (French)  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.