One last try from my side. I think my memcpy suggestion was valid, so I'll give you an example. If it's not what you want... err, ya, 14 posts for nothingOriginally posted by stovellp
I cannot change the definition of GetServerVariable(), and so I must make it work without changing the way the function looks to the client. Thats why I must find a way to make it work with an LPVOID rather than any other type of function.
I'm not a fan of cstrings - they are slow like a snail and pose a great threat to application security. I hardly ever use them, which is the reason why the above code might be a prime example of insecure code. Better check it twice.Code:#include <iostream> #include <stdlib.h> using namespace std; const int g_iBufferSize= 100; void vtemp(LPVOID pcBuffer, int *iSize) { char szTemp[g_iBufferSize]; // fill szTemp with some junk char *pcSomeJunk= "somejunk"; strncpy(szTemp, pcSomeJunk, *iSize); // end of junk // limit iSize as defined by ms spec // min() is better, just don't know if it's standard // strlen should better be cached if (*iSize > strlen(pcSomeJunk)) *iSize= strlen(pcSomeJunk); memcpy(pcBuffer, &szTemp, *iSize); } int main(int argc, char *argv[]) { char szBuffer[100]; int iSize= sizeof(szBuffer); vtemp(szBuffer, &iSize); cout << szBuffer; system("PAUSE"); return 0; }
edit: I know, to use both strcpy and memcpy is somewhat redundant. This is only because I needed to supply some kind of data to fill the buffer and I don't know in what format your data is stored. In my above example you could even use strncpy to directly copy the string to a typecasted LPVOID pcBuffer (cast as (char *)). Ya.... err. Hope that somehow helps.
