- Fixed: FileReader's FilePos is relative to the start of the file, not relative to the start

of the lump, so r3496's change to FileReader::Gets() was only valid for lumps at the start
  of a wad. (This function was still incorrect before that, though, since it made FilePos
  relative to StartPos after it had been used once.)
  * On that note, I'm not sure GetsFromBuffer() is correct either, since it ignores StartPos,
    but I don't know when this is actually used so that I could check.

SVN r3504 (trunk)

src/files.cpp

@@ -145,15 +145,15 @@ long FileReader::Read (void *buffer, long len)
 
 char *FileReader::Gets(char *strbuf, int len)
 {
-	if (len <= 0 || FilePos >= Length) return NULL;
+	if (len <= 0 || FilePos >= StartPos + Length) return NULL;
 	char *p = fgets(strbuf, len, File);
 	if (p != NULL)
 	{
 		int old = FilePos;
-		FilePos = ftell(File) - StartPos;
+		FilePos = ftell(File);
-		if (FilePos > Length)
+		if (FilePos - StartPos > Length)
 		{
-			strbuf[Length-old] = 0;
+			strbuf[Length - old + StartPos] = 0;
 		}
 	}
 	return p;