contrib/ipfilter/ipsend/ultrix.c

   1 /*
   2  * (C)opyright 1998 Darren Reed. (from tcplog)
   3  *
   4  * See the IPFILTER.LICENCE file for details on licencing.
   5  */
   6 #include <stdio.h>
   7 #include <strings.h>
   8 #include <unistd.h>
   9 #include <stdlib.h>
  10 #include <ctype.h>
  11 #include <sys/types.h>
  12 #include <sys/param.h>
  13 #include <sys/socket.h>
  14 #include <sys/file.h>
  15 #include <sys/ioctl.h>
  16 #include <net/if.h>
  17 #include <netinet/in.h>
  18 #include <netinet/if_ether.h>
  19 #include <netdnet/dli_var.h>
  20
  21
  22 static  struct  dli_devid       dli_devid;
  23
  24
  25 int     initdevice(device, sport, tout)
  26 char    *device;
  27 int     sport, tout;
  28 {
  29         u_char  *s;
  30         int     fd;
  31
  32         fd = socket(AF_DLI, SOCK_DGRAM, 0);
  33         if (fd == -1)
  34                 perror("socket(AF_DLI,SOCK_DGRAM)");
  35         else {
  36                 strncpy(dli_devid.dli_devname, device, DLI_DEVSIZE);
  37                 dli_devid.dli_devname[DLI_DEVSIZE] ='\0';
  38                 for (s = dli_devid.dli_devname; *s && isalpha((char)*s); s++)
  39                         ;
  40                 if (*s && isdigit((char)*s)) {
  41                         dli_devid.dli_devnumber = atoi(s);
  42                 }
  43         }
  44         return fd;
  45 }
  46
  47
  48 /*
  49  * output an IP packet onto a fd opened for /dev/bpf
  50  */
  51 int     sendip(fd, pkt, len)
  52 int     fd, len;
  53 char    *pkt;
  54 {
  55         struct sockaddr_dl dl;
  56         struct sockaddr_edl *edl = &dl.choose_addr.dli_eaddr;
  57
  58         dl.dli_family = AF_DLI;
  59         dl.dli_substructype = DLI_ETHERNET;
  60         bcopy((char *)&dli_devid, (char *)&dl.dli_device, sizeof(dli_devid));
  61         bcopy(pkt, edl->dli_target, DLI_EADDRSIZE);
  62         bcopy(pkt, edl->dli_dest, DLI_EADDRSIZE);
  63         bcopy(pkt + DLI_EADDRSIZE * 2, (char *)&edl->dli_protype, 2);
  64         edl->dli_ioctlflg = 0;
  65
  66         if (sendto(fd, pkt, len, 0, (struct sockaddr *)&dl, sizeof(dl)) == -1)
  67             {
  68                 perror("send");
  69                 return -1;
  70             }
  71
  72         return len;
  73 }
  74
  75
  76 char *strdup(str)
  77 char *str;
  78 {
  79         char    *s;
  80
  81         if ((s = (char *)malloc(strlen(str) + 1)))
  82                 return strcpy(s, str);
  83         return NULL;
  84 }