X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=ipif%2Fservice.c;h=b9d8b44cbd56ceb1188a9a79b48459538b4dddd1;hb=03203c8a42124de66a5e8d5eee2e5b86a3ec44cf;hp=670b44706be087221e882eb69b9c61cf5e02ecef;hpb=fdeb527b85307e455f87b2fed7f3527de80a650d;p=userv-utils.git

diff --git a/ipif/service.c b/ipif/service.c
index 670b447..b9d8b44 100644
--- a/ipif/service.c
+++ b/ipif/service.c
@@ -719,11 +719,13 @@ static void setnonblock(int fd) {
 }
 
 static void rx_packet(const uint8_t *packet, int len) {
+  if (!len)
+    return;
   for (;;) {
     int r= write(tunfd, packet, len);
     if (r<0) {
       if (errno==EINTR) continue;
-      if (errno==EAGAIN) return; /* oh well */
+      if (errno==EAGAIN || errno==ENOMEM) return; /* oh well */
       sysfatal("error writing packet to tun (transmitting)");
     }
     assert(r==len);