*/
#ifndef lint
-static char rcsid[] = "$Id: sys-ultrix.c,v 1.8 1995/04/24 05:35:27 paulus Exp $";
+static char rcsid[] = "$Id: sys-ultrix.c,v 1.14 1995/08/11 02:36:26 paulus Exp $";
#endif
/*
static int restore_term; /* 1 => we've munged the terminal */
static struct termios inittermios; /* Initial TTY termios */
+static struct winsize wsinfo; /* Initial window size info */
static char *lock_file;
die(1);
}
- if (!restore_term)
+ if (!restore_term) {
inittermios = tios;
+ ioctl(fd, TIOCGWINSZ, &wsinfo);
+ }
tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB | CLOCAL);
#ifdef CRTSCTS
restore_tty()
{
if (restore_term) {
+ if (!default_device) {
+ /*
+ * Turn off echoing, because otherwise we can get into
+ * a loop with the tty and the modem echoing to each other.
+ * We presume we are the sole user of this tty device, so
+ * when we close it, it will revert to its defaults anyway.
+ */
+ inittermios.c_lflag &= ~(ECHO | ECHONL);
+ }
if (tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
if (errno != ENXIO)
syslog(LOG_WARNING, "tcsetattr: %m");
+ ioctl(fd, TIOCSWINSZ, &wsinfo);
restore_term = FALSE;
}
}
u_int32_t ipaddr;
struct sockaddr *hwaddr;
{
- struct ifreq *ifr, *ifend, *ifp;
+ struct ifreq *ifr, *ifend;
u_int32_t ina, mask;
- struct sockaddr_dl *dla;
struct ifreq ifreq;
struct ifconf ifc;
struct ifreq ifs[MAX_IFS];
+ struct ifdevea ifdevea;
ifc.ifc_len = sizeof(ifs);
ifc.ifc_req = ifs;
*/
if (ioctl(sockfd, SIOCGIFNETMASK, &ifreq) < 0)
continue;
- mask = ((struct sockaddr_in *) &ifr->ifr_addr)->sin_addr.s_addr;
+ mask = ((struct sockaddr_in *) &ifreq.ifr_addr)->sin_addr.s_addr;
if ((ipaddr & mask) != (ina & mask))
continue;
syslog(LOG_INFO, "found interface %s for proxy arp", ifr->ifr_name);
/*
- * Now scan through again looking for a link-level address
- * for this interface.
+ * Grab the physical address for this interface.
*/
- ifp = ifr;
- for (ifr = ifc.ifc_req; ifr < ifend; ) {
- if (strcmp(ifp->ifr_name, ifr->ifr_name) == 0
- && ifr->ifr_addr.sa_family == AF_DLI) {
-/* && ifr->ifr_addr.sa_family == AF_LINK) { Per! Kolla !!! ROHACK */
- /*
- * Found the link-level address - copy it out
- */
- dla = (struct sockaddr_dl *)&ifr->ifr_addr;
- hwaddr->sa_family = AF_UNSPEC;
- BCOPY(dla, hwaddr->sa_data, sizeof(hwaddr->sa_data));
- return 1;
- }
- ifr = (struct ifreq *) ((char *)&ifr->ifr_addr + sizeof(struct sockaddr)
-);
+ strncpy(ifdevea.ifr_name, ifr->ifr_name, sizeof(ifdevea.ifr_name));
+ if (ioctl(sockfd, SIOCRPHYSADDR, &ifdevea) < 0) {
+ syslog(LOG_ERR, "Couldn't get h/w address for %s: %m", ifr->ifr_name);
+ return 0;
}
- return 0;
+ hwaddr->sa_family = AF_UNSPEC;
+ BCOPY(ifdevea.current_pa, hwaddr->sa_data, 6);
+ return 1;
+}
+
+/*
+ * Return user specified netmask, modified by any mask we might determine
+ * for address `addr' (in network byte order).
+ * Here we scan through the system's list of interfaces, looking for
+ * any non-point-to-point interfaces which might appear to be on the same
+ * network as `addr'. If we find any, we OR in their netmask to the
+ * user-specified netmask.
+ */
+u_int32_t
+GetMask(addr)
+ u_int32_t addr;
+{
+ u_int32_t mask, nmask, ina;
+ struct ifreq *ifr, *ifend, ifreq;
+ struct ifconf ifc;
+ struct ifreq ifs[MAX_IFS];
+
+ addr = ntohl(addr);
+ if (IN_CLASSA(addr)) /* determine network mask for address class */
+ nmask = IN_CLASSA_NET;
+ else if (IN_CLASSB(addr))
+ nmask = IN_CLASSB_NET;
+ else
+ nmask = IN_CLASSC_NET;
+ /* class D nets are disallowed by bad_ip_adrs */
+ mask = netmask | htonl(nmask);
+
+ /*
+ * Scan through the system's network interfaces.
+ */
+ ifc.ifc_len = sizeof(ifs);
+ ifc.ifc_req = ifs;
+ if (ioctl(sockfd, SIOCGIFCONF, &ifc) < 0) {
+ syslog(LOG_WARNING, "ioctl(SIOCGIFCONF): %m");
+ return mask;
+ }
+ ifend = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
+ for (ifr = ifc.ifc_req; ifr < ifend; ifr = (struct ifreq *)
+ ((char *)&ifr->ifr_addr + sizeof(struct sockaddr))) {
+ /*
+ * Check the interface's internet address.
+ */
+ if (ifr->ifr_addr.sa_family != AF_INET)
+ continue;
+ ina = ((struct sockaddr_in *) &ifr->ifr_addr)->sin_addr.s_addr;
+ if ((ntohl(ina) & nmask) != (addr & nmask))
+ continue;
+ /*
+ * Check that the interface is up, and not point-to-point or loopback.
+ */
+ strncpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
+ if (ioctl(sockfd, SIOCGIFFLAGS, &ifreq) < 0)
+ continue;
+ if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
+ != IFF_UP)
+ continue;
+ /*
+ * Get its netmask and OR it into our mask.
+ */
+ if (ioctl(sockfd, SIOCGIFNETMASK, &ifreq) < 0)
+ continue;
+ mask |= ((struct sockaddr_in *)&ifreq.ifr_addr)->sin_addr.s_addr;
+ }
+
+ return mask;
}