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- #include "global.h"
- #include "iface.h"
-
- struct interface *
- if_lookup(name)
- char *name;
- {
- register struct interface *iface;
-
- for(iface = ifaces; iface != NULLIF; iface = iface->next)
- if(strcmp(iface->name,name) == 0)
- break;
- return iface;
- }
- /* Divert output packets from one interface to another. Useful for ARP
- * and digipeat frames coming in from receive-only interfaces
- */
- doforward(argc,argv)
- int argc;
- char *argv[];
- {
- struct interface *iface,*iface1;
-
-
- if(argc < 2){
- for(iface = ifaces; iface != NULLIF; iface = iface->next){
- if(iface->forw != NULLIF){
- printf("%s -> %s\n",iface->name,iface->forw->name);
- }
- }
- return 0;
- }
- if((iface = if_lookup(argv[1])) == NULLIF){
- printf("Interface %s unknown\n",argv[1]);
- return 1;
- }
- if(argc < 3){
- if(iface->forw == NULLIF)
- printf("%s not forwarded\n",iface->name);
- else
- printf("%s -> %s\n",iface->name,iface->forw->name);
- return 0;
- }
- if((iface1 = if_lookup(argv[2])) == NULLIF){
- printf("Interface %s unknown\n",argv[2]);
- return 1;
- }
- if(iface1 == iface){
- /* Forward to self means "turn forwarding off" */
- iface->forw = NULLIF;
- } else {
- if(iface1->output != iface->output)
- printf("Warning: Interfaces of different type\n");
- iface->forw = iface1;
- }
- return 0;
- }
-