Grant Erickson fixed timeouts for TFTP

CHANGES

@@ -6,6 +6,44 @@
 
                                   Changelog
 
+Daniel Stenberg (14 Jan 2009)
+- Grant Erickson fixed timeouts for TFTP such that specifying a
+  connect-timeout, a max-time or both options work correctly and as expected
+  by passing the correct boolean value to Curl_timeleft via the
+  'duringconnect' parameter.
+
+  With this small change, curl TFTP now behaves as expected (and likely as
+  originally-designed):
+
+  1) For non-existent or unreachable dotted IP addresses:
+
+   a) With no options, follows the default curl 300s timeout...
+   b) With --connect-timeout only, follows that value...
+   c) With --max-time only, follows that value...
+   d) With both --connect-timeout and --max-time, follows the smaller value...
+
+   and times out with a "curl: (7) Couldn't connect to server" error.
+
+  2) For transfers to/from a valid host:
+
+   a) With no options, follows default curl 300s timeout for the
+      first XRQ/DATA/ACK transaction and the default TFTP 3600s
+      timeout for the remainder of the transfer...
+
+   b) With --connect-time only, follows that value for the
+      first XRQ/DATA/ACK transaction and the default TFTP 3600s
+      timeout for the remainder of the transfer...
+
+   c) With --max-time only, follows that value for the first
+      XRQ/DATA/ACK transaction and for the remainder of the
+      transfer...
+
+   d) With both --connect-timeout and --max-time, follows the former
+      for the first XRQ/DATA/ACK transaction and the latter for the
+      remainder of the transfer...
+
+   and times out with a "curl: (28) Timeout was reached" error as
+   appropriate.
 
 Daniel Stenberg (13 Jan 2009)
 - Michael Wallner fixed a NULL pointer deref when calling

RELEASE-NOTES

@@ -47,6 +47,7 @@ This release includes the following bugfixes:
  o the configure script can now detect gnutls with pkg-config
  o curlbuild.h was adjusted for SunPro compilers
  o CURLOPT_COOKIELIST set to "SESS" on an easy handle with no cookies data
+ o fixed timeouts for TFTP
 
 This release includes the following known bugs:
 
@@ -59,6 +60,7 @@ advice from friends like these:
  Markus Koetter, Josef Wolf, Vlad Grachov, Pawel Kierski, Igor Novoseltsev,
  Fred Machado, Ken Hirsch, Keshav Krity, Patrick Monnerat, Mark Karpeles,
  Anthony Bryan, Peter Korsgaard, Phil Lisiecki, Bas Mevissen, Rob Crittenden,
- Emil Romanus, Karl Moerder, Daniel Black, Stefan Teleman, Michael Wallner
+ Emil Romanus, Karl Moerder, Daniel Black, Stefan Teleman, Michael Wallner,
+ Grant Erickson
 
         Thanks! (and sorry if I forgot to mention someone)

TODO-RELEASE

@@ -1,12 +1,8 @@
 To be addressed in 7.19.3 (planned release: January 2009)
 =========================
 
-210 - [PATCH] TFTP: Fix Connect and Transfer Timeout Behavior
-
 211 - Building and using static libcurl on Windows with VS2008
 
-212 - Updated libcurl VS2008 Guide
-
 213 - bug #2501457 "Timeouts not working with curl_multi_socket_action()" -
       most probably subject for addition to docs/KNOWN_BUGS
 

lib/tftp.c

@@ -195,11 +195,12 @@ static CURLcode tftp_set_timeouts(tftp_state_data_t *state)
 {
   time_t maxtime, timeout;
   long timeout_ms;
+  const bool start = (state->state == TFTP_STATE_START);
 
   time(&state->start_time);
 
   /* Compute drop-dead time */
-  timeout_ms = Curl_timeleft(state->conn, NULL, TRUE);
+  timeout_ms = Curl_timeleft(state->conn, NULL, start);
 
   if(timeout_ms < 0) {
     /* time-out, bail out, go home */
@@ -207,7 +208,7 @@ static CURLcode tftp_set_timeouts(tftp_state_data_t *state)
     return CURLE_OPERATION_TIMEDOUT;
   }
 
-  if(state->state == TFTP_STATE_START) {
+  if(start) {
 
     maxtime = (time_t)(timeout_ms + 500) / 1000;
     state->max_time = state->start_time+maxtime;