torrent: avoid trying to fetch blocks past file

diff --git a/sys/src/cmd/ip/torrent.c b/sys/src/cmd/ip/torrent.c
index 5ce321b4cae1900bed4ba74a2638757b65c8c5cf..01470712f73168784fcb3de1d21ff4d6d6ca4f0c 100644 (file)
--- a/sys/src/cmd/ip/torrent.c
+++ b/sys/src/cmd/ip/torrent.c
@@ -811,7 +811,8 @@ Error:
                        }
                }
        }
-       havepiece(off / blocksize, w->str);
+       if(off < f->off + f->len)
+               havepiece(off / blocksize, w->str);
        havepiece(f->off / blocksize, w->str);
        close(fd);
        exits(0);