Buffer overrun preventing Inkscape from running on Win32

[Jaspervdg]

The temporary character buffer tmp allocated in main.cpp on line 426 (CHAR tmp[_MAX_EXT]) could overrun if the generated path was more than 255 characters long. This was exposed by the most recent patch which appended the existing path (in my case it's over a 1000 characters, so the buffer is easily overrun). For me this meant Inkscape would refuse to run. Replacing the fixed-size character buffer by std::string resolved the issue (patch attached).

[Jaspervdg (jaspervdg)]

I just found out I have SVN access so I committed this change myself.

[bbyak (buliabyak)]

thanks