Allow sending data after file is paused.

Dissallow sending non requested data.

1 files changed, 5 insertions, 7 deletions

diff --git a/toxcore/Messenger.c b/toxcore/Messenger.c
index dccd6495..6ec5a796 100644
--- a/toxcore/Messenger.c
+++ b/toxcore/Messenger.c
@@ -1329,9 +1329,6 @@ int file_data(const Messenger *m, int32_t friendnumber, uint32_t filenumber, uin
     if (ft->status != FILESTATUS_TRANSFERRING)
         return -4;
 
-    if (ft->paused != FILE_PAUSE_NOT)
-        return -4;
-
     if (length > MAX_FILE_DATA_SIZE)
         return -5;
 
@@ -1343,7 +1340,7 @@ int file_data(const Messenger *m, int32_t friendnumber, uint32_t filenumber, uin
         return -5;
     }
 
-    if (position != ft->transferred) {
+    if (position != ft->transferred || (ft->requested <= position && ft->size != 0)) {
         return -7;
     }
 
@@ -1469,11 +1466,12 @@ static void do_reqchunk_filecb(Messenger *m, int32_t friendnumber)
 
             ++ft->slots_allocated;
 
-            if (m->file_reqchunk)
-                (*m->file_reqchunk)(m, friendnumber, i, ft->requested, length, m->file_reqchunk_userdata);
-
+            uint64_t position = ft->requested;
             ft->requested += length;
 
+            if (m->file_reqchunk)
+                (*m->file_reqchunk)(m, friendnumber, i, position, length, m->file_reqchunk_userdata);
+
             --free_slots;
 
         }