Added test of TFTP server error reporting.

tests/data/Makefile.am

@@ -36,4 +36,4 @@ EXTRA_DIST = test1 test108 test117 test127 test20 test27 test34 test46	   \
  test265 test266 test267 test268 test269 test270 test271 test272 test273   \
  test274 test275 test524 test525 test276 test277 test526 test527 test528   \
  test530 DISABLED test278 test279 test531 test280 test529 test532 test533  \
- test534 test535 test281 test537 test282 test538
+ test534 test535 test281 test537 test282 test283 test538

tests/data/test283

@@ -0,0 +1,33 @@
+<info>
+<keywords>
+TFTP
+TFTP RRQ
+</keywords>
+</info>
+
+#
+# Client-side
+<client>
+<server>
+tftp
+</server>
+ <name>
+TFTP retrieve on invalid file
+ </name>
+ <command>
+tftp://%HOSTIP:%TFTPPORT//invalid-file --trace-ascii log/traceit
+</command>
+</client>
+
+#
+# Verify pseudo protocol after the test has been "shot"
+<verify>
+<errorcode>
+69
+</errorcode>
+<protocol>
+opcode: 1
+filename: /invalid-file
+mode: octet
+</protocol>
+</verify>