xfree86: Handle config files ending without newline

The config parser expects to find a newline at the end of each line, so
files ending without one would confuse it. A newline is inserted at the
end of the buffer in these situations. Additionally, switching to the
next config file is moved to the higher level to allow parsing of the
last line of the previous file to complete before shifting the index and
resetting the line number.

Signed-off-by: Dan Nicholson <dbn.lists@gmail.com>
Tested-by: Stephan Raue<stephan.raue@gmx.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

hw/xfree86/parser/scan.c

@@ -227,14 +227,16 @@ xf86getNextLine(void)
 			    configFiles[curFileIndex].file);
 
 		if (!ret) {
-			/* stop if there are no more files */
-			if (++curFileIndex >= numFiles) {
-				curFileIndex = 0;
+			/*
+			 * if the file doesn't end in a newline, add one
+			 * and trigger another read
+			 */
+			if (pos != 0) {
+				strcpy(&configBuf[pos], "\n");
+				ret = configBuf;
+			} else
 				break;
 		}
-			configLineNo = 0;
-			continue;
-		}
 
 		/* search for EOL in the new block of chars */
 
@@ -338,6 +340,16 @@ again:
 			}
 			if (ret == NULL)
 			{
+				/*
+				 * if necessary, move to the next file and
+				 * read the first line
+				 */
+				if (curFileIndex + 1 < numFiles) {
+					curFileIndex++;
+					configLineNo = 0;
+					goto again;
+				}
+				else
 					return (pushToken = EOF_TOKEN);
 			}
 			configLineNo++;