92 lines
2.5 KiB
Text
92 lines
2.5 KiB
Text
diff -ur --unidirectional-new-file skipsrc-1.0.orig/skip/tools/lib/skip_freebsd.c work.new/skip/tools/lib/skip_freebsd.c
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--- skipsrc-1.0.orig/skip/tools/lib/skip_freebsd.c Fri Oct 25 13:13:02 1996
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+++ work.new/skip/tools/lib/skip_freebsd.c Mon Mar 8 21:33:38 1999
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@@ -235,7 +235,7 @@
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char *
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skip_default_if()
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{
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-#define SKIP_DEFAULT_IF "eth0" /* 3com 3c589 */
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+#define SKIP_DEFAULT_IF "ed1"
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static char devname[MAXPATHLEN];
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char cbuf[sizeof(struct ifreq) * 16];
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struct ifconf ifc;
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@@ -244,6 +244,7 @@
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struct sockaddr_in *sa;
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char hostname[MAXHOSTNAMELEN];
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int s, n;
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+ int goodness = 0;
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strcpy(devname, SKIP_DEFAULT_IF);
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@@ -253,11 +254,13 @@
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hp = _skip_gethostbyname(hostname);
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+#if 0
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if (hp == NULL) {
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return(devname);
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}
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+#endif
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- if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
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+ if ((s = socket(PF_INET, SOCK_RAW, 0)) < 0) {
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return (devname);
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}
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@@ -276,33 +279,37 @@
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* just in case the primary can't be found.
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*
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*/
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- end = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
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- while (ifr < end) {
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+ for (end = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len),
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+ ifr = ifc.ifc_req;
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+ ifr < end;
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+ ifr = (struct ifreq *)
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+ ((char *) &ifr->ifr_addr + ifr->ifr_addr.sa_len))
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+ {
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+ int newgoodness = 0;
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strcpy(ifflags.ifr_name, ifr->ifr_name);
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if (ioctl(s, SIOCGIFFLAGS, (char *) &ifflags) < 0) {
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- /*goto out;*/
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+ continue;
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}
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if ((ifflags.ifr_flags & (IFF_LOOPBACK|IFF_UP|IFF_RUNNING)) ==
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(IFF_UP|IFF_RUNNING)) {
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- /*
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- * note the interface name just in case
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- */
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- strcpy(devname, ifr->ifr_name);
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- /*
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- * but try to find an exact match
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- */
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- sa = (struct sockaddr_in *) &ifr->ifr_addr;
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- if (memcmp(hp->h_addr_list[0], (void *) &sa->sin_addr,
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- hp->h_length) == 0) {
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- break;
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+ /* try to find an exact match */
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+ if (hp && ifr->ifr_addr.sa_family == AF_INET) {
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+ sa = (struct sockaddr_in *) &ifr->ifr_addr;
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+ if (memcmp(hp->h_addr_list[0],
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+ (void *) &sa->sin_addr, hp->h_length) == 0)
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+ break;
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+ }
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+ /* try to prefer ethernet interfaces */
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+ if (ifflags.ifr_flags & IFF_BROADCAST)
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+ newgoodness += 1;
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+ if (!(ifflags.ifr_flags & IFF_POINTOPOINT))
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+ newgoodness += 1;
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+ if (newgoodness > goodness) {
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+ strcpy(devname, ifr->ifr_name);
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+ goodness = newgoodness;
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}
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}
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- if(ifr->ifr_addr.sa_len) /* Dohw! */
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- ifr = (struct ifreq *) ((caddr_t) ifr +
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- ifr->ifr_addr.sa_len -
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- sizeof(struct sockaddr));
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- ifr++;
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}
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out:
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(void) close(s);
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