fixed invalid received length

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1155 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 6 insertions, 2 deletions

diff --git a/socket.c b/socket.c
index ea91eab..f044d7e 100644
--- a/socket.c
+++ b/socket.c
@@ -167,8 +167,12 @@ int soread(so) struct socket *so;
      * a close will be detected on next iteration.
      * A return of -1 wont (shouldn't) happen, since it didn't happen above
      */
-    if (n == 2 && nn == iov[0].iov_len)
-        nn += recv(so->s, iov[1].iov_base, iov[1].iov_len, 0);
+    if (n == 2 && nn == iov[0].iov_len) {
+        int ret;
+        ret = recv(so->s, iov[1].iov_base, iov[1].iov_len, 0);
+        if (ret > 0)
+            nn += ret;
+    }
 
     DEBUG_MISC((dfd, " ... read nn = %d bytes\n", nn));
 #endif