[svn] Make sure opt.dfp is rewound only on the first retrieval.

[wget] / src / http.c

diff --git a/src/http.c b/src/http.c
index 589657f37ee4bb171b69314758a98b6d3b41b56e..4c65d6774d16201ebb731b463845409cd6262a1b 100644 (file)
--- a/src/http.c
+++ b/src/http.c
@@ -1285,8 +1285,22 @@ Accept: %s\r\n\
     }
   else                         /* opt.dfp */
     {
+      extern int global_download_count;
       fp = opt.dfp;
-      if (!hs->restval)
+      /* To ensure that repeated "from scratch" downloads work for -O
+        files, we rewind the file pointer, unless restval is
+        non-zero.  (This works only when -O is used on regular files,
+        but it's still a valuable feature.)
+
+        However, this loses when more than one URL is specified on
+        the command line the second rewinds eradicates the contents
+        of the first download.  Thus we disable the above trick for
+        all the downloads except the very first one.
+
+         #### A possible solution to this would be to remember the
+        file position in the output document and to seek to that
+        position, instead of rewinding.  */
+      if (!hs->restval && global_download_count == 0)
        {
          /* This will silently fail for streams that don't correspond
             to regular files, but that's OK.  */