Reading Registry Values

hi All,

I have a function that reads string values from the registry:

Code:

---

char *readregistry(char keyname[50], char keyvalue[20])
{
        BOOL ret, success;
        HKEY keyhandle;
        DWORD dwBufLen = 32;
        char myregval[100];
        char *str= (char *)malloc(100);

        if (str == NULL)
        {        cout << "Error allocating memory";
                exit(1);
        }

        ret=RegOpenKeyEx(HKEY_LOCAL_MACHINE,keyname,0,KEY_READ,&keyhandle);

        if (ret != ERROR_SUCCESS)
        {       
                strcpy(str, "NONE");
                return str;
        }
        else
        {
                success= RegQueryValueEx(keyhandle, keyvalue, NULL, NULL, (LPBYTE)myregval, &dwBufLen);
                if (success != ERROR_SUCCESS) {
                        strcpy(str, "NONE");
                        return str;
                }
                else
                {        strcpy(str, myregval);
                        return str;
                }
        }

}

---

This normally works fine however if I am trying to read a unc network path from the registry some times it fails and returns 'NONE'.

For instance it cannot read this value:

\\computername\share\directory\subdirectory\

But it can read this:

\\computername\share\directory\

Any thoughts as to how to get around this problem?

Thanks in advance..
Aaron

You are passing a buffer size of 32. The string is more than 32 characters. You will get an error, ERROR_MORE_DATA.

Thank you anonytmouse.. That did it.. I upped the buffer to 255 and it works fine now.

Thanks again :)