sys/src/9/ip/nullmedium.c

   1 #include "u.h"
   2 #include "../port/lib.h"
   3 #include "mem.h"
   4 #include "dat.h"
   5 #include "fns.h"
   6 #include "../port/error.h"
   7
   8 #include "ip.h"
   9
  10 static void
  11 nullbind(Ipifc*, int, char**)
  12 {
  13         error("cannot bind null device");
  14 }
  15
  16 static void
  17 nullunbind(Ipifc*)
  18 {
  19 }
  20
  21 static void
  22 nullbwrite(Ipifc*, Block*, int, uchar*)
  23 {
  24         error("nullbwrite");
  25 }
  26
  27 Medium nullmedium =
  28 {
  29 .name=          "null",
  30 .bind=          nullbind,
  31 .unbind=        nullunbind,
  32 .bwrite=        nullbwrite,
  33 };
  34
  35 void
  36 nullmediumlink(void)
  37 {
  38         addipmedium(&nullmedium);
  39 }