commit 1c8670d6bf97a50c90147cb9e9853bf383ffaeb8
author Brian Silverman <brians> Sat Apr 13 18:59:13 2013 -0700
committer Brian Silverman <brians> Tue Apr 23 17:10:07 2013 -0700
tree c2e1a3404f3c56d08fd8dea9106cbe95a7cc4253
parent cb9637c86924807534297fc93aac94a38591d261

fixed a couple of small things

aos/atom_code/starter/netconsole.cc

diff --git a/aos/atom_code/starter/netconsole.cc b/aos/atom_code/starter/netconsole.cc
index 83089d7..e2ba2b4 100644
--- a/aos/atom_code/starter/netconsole.cc
+++ b/aos/atom_code/starter/netconsole.cc
@@ -51,8 +51,9 @@
                cmsg = CMSG_NXTHDR(&header, cmsg)) {
             if (cmsg->cmsg_level == IPPROTO_IP &&
                 cmsg->cmsg_type == IP_PKTINFO) {
-              struct in_pktinfo *pktinfo =
-                  reinterpret_cast<struct in_pktinfo *>(CMSG_DATA(cmsg));
+              unsigned char *data = CMSG_DATA(cmsg);
+              struct in_pktinfo *pktinfo;
+              memcpy(&pktinfo, &data, sizeof(void *));
               good_data = pktinfo->ipi_spec_dst.s_addr ==
                   to_copy->interface_address->sin_addr.s_addr;
             }
@@ -87,8 +88,12 @@
               to_copy->output, buffer, position, errno, strerror(errno));
         }
       } else if (sent_bytes != 0) {
-        memmove(buffer, buffer + sent_bytes, position - sent_bytes);
-        position -= sent_bytes;
+        if (sent_bytes == position) {
+          position = 0;
+        } else {
+          memmove(buffer, buffer + sent_bytes, position - sent_bytes);
+          position -= sent_bytes;
+        }
       }
     }
   }