TFTP: make the CURLOPT_LOW_SPEED* options work

... this also makes sure that the progess callback gets called more
often during TFTP transfers.

Added test 1238 to verify.

Bug: http://curl.haxx.se/bug/view.cgi?id=1269
Reported-by: Jo3

lib/tftp.c

@@ -56,6 +56,7 @@
 #include "multiif.h"
 #include "url.h"
 #include "rawstr.h"
+#include "speedcheck.h"
 
 #define _MPRINTF_REPLACE /* use our functions only */
 #include <curl/mprintf.h>
@@ -1255,6 +1256,15 @@ static CURLcode tftp_doing(struct connectdata *conn, bool *dophase_done)
   if(*dophase_done) {
     DEBUGF(infof(conn->data, "DO phase is complete\n"));
   }
+  else {
+    /* The multi code doesn't have this logic for the DOING state so we
+       provide it for TFTP since it may do the entire transfer in this
+       state. */
+    if(Curl_pgrsUpdate(conn))
+      result = CURLE_ABORTED_BY_CALLBACK;
+    else
+      result = Curl_speedcheck(conn->data, Curl_tvnow());
+  }
   return result;
 }
 

tests/data/Makefile.am

@@ -94,7 +94,7 @@ test1208 test1209 test1210 test1211 test1212 test1213 test1214 test1215 \
 test1216 test1217 test1218 test1219 \
 test1220 test1221 test1222 test1223 test1224 test1225 test1226 test1227 \
 test1228 test1229 test1230 test1231 test1232 test1233 test1234 test1235 \
-test1236 test1237 \
+test1236 test1237 test1238 \
 \
 test1300 test1301 test1302 test1303 test1304 test1305 test1306 test1307 \
 test1308 test1309 test1310 test1311 test1312 test1313 test1314 test1315 \

tests/data/test1238

@@ -0,0 +1,49 @@
+<testcase>
+<info>
+<keywords>
+TFTP
+TFTP RRQ
+</keywords>
+</info>
+
+#
+# Server-side
+<reply>
+<servercmd>
+writedelay: 1
+</servercmd>
+# ~1200 bytes (so that they don't fit in two 512 byte chunks)
+<data nocheck="yes">
+012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789
+</data>
+</reply>
+
+#
+# Client-side
+<client>
+<server>
+tftp
+</server>
+ <name>
+slow TFTP retrieve cancel due to -Y and -y
+ </name>
+# if less than 1000 bytes/sec within 2 seconds, abort!
+ <command>
+tftp://%HOSTIP:%TFTPPORT//1238 -Y1000 -y2
+</command>
+</client>
+
+#
+# Verify pseudo protocol after the test has been "shot"
+<verify>
+<protocol>
+opcode: 1
+filename: /1238
+mode: octet
+</protocol>
+# 28 = CURLE_OPERATION_TIMEDOUT
+<errorcode>
+28
+</errorcode>
+</verify>
+</testcase>