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diff -ur --unidirectional-new-file skipsrc-1.0.orig/skip/tools/lib/skip_freebsd.c skipsrc-1.0/skip/tools/lib/skip_freebsd.c
--- skipsrc-1.0.orig/skip/tools/lib/skip_freebsd.c Fri Oct 25 13:13:02 1996
+++ skipsrc-1.0/skip/tools/lib/skip_freebsd.c Fri Dec 5 17:33:01 1997
@@ -235,7 +235,7 @@
char *
skip_default_if()
{
-#define SKIP_DEFAULT_IF "eth0" /* 3com 3c589 */
+#define SKIP_DEFAULT_IF "ed1"
static char devname[MAXPATHLEN];
char cbuf[sizeof(struct ifreq) * 16];
struct ifconf ifc;
@@ -244,6 +244,7 @@
struct sockaddr_in *sa;
char hostname[MAXHOSTNAMELEN];
int s, n;
+ int goodness = 0;
strcpy(devname, SKIP_DEFAULT_IF);
@@ -253,11 +254,13 @@
hp = _skip_gethostbyname(hostname);
+#if 0
if (hp == NULL) {
return(devname);
}
+#endif
- if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+ if ((s = socket(PF_INET, SOCK_RAW, 0)) < 0) {
return (devname);
}
@@ -276,33 +279,37 @@
* just in case the primary can't be found.
*
*/
- end = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
- while (ifr < end) {
+ for (end = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len),
+ ifr = ifc.ifc_req;
+ ifr < end;
+ ifr = (struct ifreq *)
+ ((char *) &ifr->ifr_addr + ifr->ifr_addr.sa_len))
+ {
+ int newgoodness = 0;
strcpy(ifflags.ifr_name, ifr->ifr_name);
if (ioctl(s, SIOCGIFFLAGS, (char *) &ifflags) < 0) {
- /*goto out;*/
+ continue;
}
if ((ifflags.ifr_flags & (IFF_LOOPBACK|IFF_UP|IFF_RUNNING)) ==
(IFF_UP|IFF_RUNNING)) {
- /*
- * note the interface name just in case
- */
- strcpy(devname, ifr->ifr_name);
- /*
- * but try to find an exact match
- */
- sa = (struct sockaddr_in *) &ifr->ifr_addr;
- if (memcmp(hp->h_addr_list[0], (void *) &sa->sin_addr,
- hp->h_length) == 0) {
- break;
+ /* try to find an exact match */
+ if (hp && ifr->ifr_addr.sa_family == AF_INET) {
+ sa = (struct sockaddr_in *) &ifr->ifr_addr;
+ if (memcmp(hp->h_addr_list[0],
+ (void *) &sa->sin_addr, hp->h_length) == 0)
+ break;
+ }
+ /* try to prefer ethernet interfaces */
+ if (ifflags.ifr_flags & IFF_BROADCAST)
+ newgoodness += 1;
+ if (!(ifflags.ifr_flags & IFF_POINTOPOINT))
+ newgoodness += 1;
+ if (newgoodness > goodness) {
+ strcpy(devname, ifr->ifr_name);
+ goodness = newgoodness;
}
}
- if(ifr->ifr_addr.sa_len) /* Dohw! */
- ifr = (struct ifreq *) ((caddr_t) ifr +
- ifr->ifr_addr.sa_len -
- sizeof(struct sockaddr));
- ifr++;
}
out:
(void) close(s);
|
