fixed a number of memory complaints from valgrind. most of these were minor, but there was a rather disturbing memory over-read error in the SMC text parser. correcting this brought about a rewrite of its API. this change is BACKWARDS INCOMPATIBLE for C++ extensions, but it was sorely needed, and the API is now both future-extensible and much easier to work with. plugins didn't need any changes, but they will probably get the better API changes in a future release. as a special bonus, the RawLine() hook is now much less expensive since the entire stream buffer won't be shoved through it like before!

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401662

core/vm/sp_vm_basecontext.cpp

@@ -811,7 +811,7 @@ int BaseContext::StringToLocal(cell_t local_addr, size_t bytes, const char *sour
 		len = bytes - 1;
 	}
 
-	memcpy(dest, source, len);
+	memmove(dest, source, len);
 	dest[len] = '\0';
 
 	return SP_ERROR_NONE;
@@ -880,7 +880,7 @@ int BaseContext::StringToLocalUTF8(cell_t local_addr, size_t maxbytes, const cha
 		needtocheck = true;
 	}
 
-	memcpy(dest, source, len);
+	memmove(dest, source, len);
 	if ((dest[len-1] & 1<<7) && needtocheck)
 	{
 		len -= __CheckValidChar(dest+len-1);