struct bpf_version bv; unsigned int

       if (ioctl(sock, I_FLUSH, (char *)FLUSHR) < 0) return(-8);

#endif

#ifdef LINUX

       if ((sock=socket(AF_INET,SOCK_PACKET,768))<0) return(-1);

       strcpy(f.ifr_name, nic_name);     if (ioctl(sock,SIOCGIFFLAGS,&f)<0) return(-2);

       f.ifr_flags |= IFF_PROMISC;       if (ioctl(sock,SIOCSIFFLAGS,&f)<0) return(-3);

#endif

#ifdef FREEBSD

       char device[12]; int n=0; struct bpf_version bv; unsigned int size;

      

       do{

              sprintf(device,"%s%d",nit_dev,n++); sock=open(device,O_RDONLY);

       } while(sock<0 && errno==EBUSY);

       if(ioctl(sock,BIOCVERSION,(char *)&bv)<0) return(-2);

       if((bv.bv_major!=BPF_MAJOR_VERSION)||(bv.bv_minor<BPF_MINOR_VERSION))return -3;

       strncpy(f.ifr_name,nic_name,sizeof(f.ifr_name));

       if(ioctl(sock,BIOCSETIF,(char *)&f)<0) return-4;

       ioctl(sock,BIOCPROMISC,NULL);if(ioctl(sock,BIOCGBLEN,(char *)&size)<0)return-5;

#endif

#ifdef IRIX

       struct sockaddr_raw sr; struct snoopfilter sf;

       int size=CHUNKSIZE,on=1; char *interface;

       if((sock=socket(PF_RAW,SOCK_RAW,RAWPROTO_SNOOP))<0) return -1;

       sr.sr_family = AF_RAW; sr.sr_port = 0;

       if (!(interface=(char *)getenv("interface")))

       memset(sr.sr_ifname,0,sizeof(sr.sr_ifname));

       else strncpy(sr.sr_ifname,interface,sizeof(sr.sr_ifname));

       if(bind(sock,&sr,sizeof(sr))<0) return(-2); memset((char *)&sf,0,sizeof(sf));

       if(ioctl(sock,SIOCADDSNOOP,&sf)<0) return(-3);

       setsockopt(sock,SOL_SOCKET,SO_RCVBUF,(char *)&size,sizeof(size));

       if(ioctl(sock,SIOCSNOOPING,&on)<0) return(-4);

#endif

#ifdef SOLARIS

       long buf[CHUNKSIZE]; dl_attach_req_t ar; dl_promiscon_req_t pr;

       struct strioctl si; union DL_primitives *dp; dl_bind_req_t bind_req;

       struct strbuf c; int flags;

      

       if ((sock=open(nit_dev,2))<0) return(-1);


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