Also gets IPv6 interfaces.
****************************************************************************/
-#if HAVE_IFACE_GETIFADDRS
/****************************************************************************
Get the netmask address for a local interface.
****************************************************************************/
return total;
}
-#define _FOUND_IFACE_ANY
-#endif /* HAVE_IFACE_GETIFADDRS */
-#if HAVE_IFACE_IFCONF
-
-/* this works for Linux 2.2, Solaris 2.5, SunOS4, HPUX 10.20, OSF1
- V4.0, Ultrix 4.4, SCO Unix 3.2, IRIX 6.4 and FreeBSD 3.2.
-
- It probably also works on any BSD style system. */
-
-/****************************************************************************
- Get the netmask address for a local interface.
-****************************************************************************/
-
-static int _get_interfaces(struct iface_struct *ifaces, int max_interfaces)
-{
- struct ifconf ifc;
- char buff[8192];
- int fd, i, n;
- struct ifreq *ifr=NULL;
- int total = 0;
-
- if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
- return -1;
- }
-
- ifc.ifc_len = sizeof(buff);
- ifc.ifc_buf = buff;
-
- if (ioctl(fd, SIOCGIFCONF, &ifc) != 0) {
- close(fd);
- return -1;
- }
-
- ifr = ifc.ifc_req;
-
- n = ifc.ifc_len / sizeof(struct ifreq);
-
- /* Loop through interfaces, looking for given IP address */
- for (i=n-1;i>=0 && total < max_interfaces;i--) {
-
- memset(&ifaces[total], '\0', sizeof(ifaces[total]));
-
- /* Check the interface is up. */
- if (ioctl(fd, SIOCGIFFLAGS, &ifr[i]) != 0) {
- continue;
- }
-
- ifaces[total].flags = ifr[i].ifr_flags;
-
- if (!(ifaces[total].flags & IFF_UP)) {
- continue;
- }
-
- if (ioctl(fd, SIOCGIFADDR, &ifr[i]) != 0) {
- continue;
- }
-
- strlcpy(ifaces[total].name, ifr[i].ifr_name,
- sizeof(ifaces[total].name));
-
- memcpy(&ifaces[total].ip, &ifr[i].ifr_addr,
- sizeof(struct sockaddr_in));
-
- if (ioctl(fd, SIOCGIFNETMASK, &ifr[i]) != 0) {
- continue;
- }
-
- memcpy(&ifaces[total].netmask, &ifr[i].ifr_netmask,
- sizeof(struct sockaddr_in));
-
- if (ifaces[total].flags & IFF_BROADCAST) {
- if (ioctl(fd, SIOCGIFBRDADDR, &ifr[i]) != 0) {
- continue;
- }
- memcpy(&ifaces[total].bcast, &ifr[i].ifr_broadaddr,
- sizeof(struct sockaddr_in));
- } else if (ifaces[total].flags & IFF_POINTOPOINT) {
- if (ioctl(fd, SIOCGIFDSTADDR, &ifr[i]) != 0) {
- continue;
- }
- memcpy(&ifaces[total].bcast, &ifr[i].ifr_dstaddr,
- sizeof(struct sockaddr_in));
- } else {
- continue;
- }
-
- total++;
- }
-
- close(fd);
-
- return total;
-}
-
-#define _FOUND_IFACE_ANY
-#endif /* HAVE_IFACE_IFCONF */
-#ifdef HAVE_IFACE_IFREQ
-
-#ifndef I_STR
-#include <sys/stropts.h>
-#endif
-
-/****************************************************************************
- This should cover most of the streams based systems.
- Thanks to Andrej.Borsenkow@mow.siemens.ru for several ideas in this code.
-****************************************************************************/
-
-static int _get_interfaces(struct iface_struct *ifaces, int max_interfaces)
-{
- struct ifreq ifreq;
- struct strioctl strioctl;
- char buff[8192];
- int fd, i, n;
- struct ifreq *ifr=NULL;
- int total = 0;
-
- if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
- return -1;
- }
-
- strioctl.ic_cmd = SIOCGIFCONF;
- strioctl.ic_dp = buff;
- strioctl.ic_len = sizeof(buff);
- if (ioctl(fd, I_STR, &strioctl) < 0) {
- close(fd);
- return -1;
- }
-
- /* we can ignore the possible sizeof(int) here as the resulting
- number of interface structures won't change */
- n = strioctl.ic_len / sizeof(struct ifreq);
-
- /* we will assume that the kernel returns the length as an int
- at the start of the buffer if the offered size is a
- multiple of the structure size plus an int */
- if (n*sizeof(struct ifreq) + sizeof(int) == strioctl.ic_len) {
- ifr = (struct ifreq *)(buff + sizeof(int));
- } else {
- ifr = (struct ifreq *)buff;
- }
-
- /* Loop through interfaces */
-
- for (i = 0; i<n && total < max_interfaces; i++) {
-
- memset(&ifaces[total], '\0', sizeof(ifaces[total]));
-
- ifreq = ifr[i];
-
- strioctl.ic_cmd = SIOCGIFFLAGS;
- strioctl.ic_dp = (char *)&ifreq;
- strioctl.ic_len = sizeof(struct ifreq);
- if (ioctl(fd, I_STR, &strioctl) != 0) {
- continue;
- }
-
- ifaces[total].flags = ifreq.ifr_flags;
-
- if (!(ifaces[total].flags & IFF_UP)) {
- continue;
- }
-
- strioctl.ic_cmd = SIOCGIFADDR;
- strioctl.ic_dp = (char *)&ifreq;
- strioctl.ic_len = sizeof(struct ifreq);
- if (ioctl(fd, I_STR, &strioctl) != 0) {
- continue;
- }
-
- strlcpy(ifaces[total].name,
- ifreq.ifr_name,
- sizeof(ifaces[total].name));
-
- memcpy(&ifaces[total].ip, &ifreq.ifr_addr,
- sizeof(struct sockaddr_in));
-
- strioctl.ic_cmd = SIOCGIFNETMASK;
- strioctl.ic_dp = (char *)&ifreq;
- strioctl.ic_len = sizeof(struct ifreq);
- if (ioctl(fd, I_STR, &strioctl) != 0) {
- continue;
- }
-
- memcpy(&ifaces[total].netmask, &ifreq.ifr_addr,
- sizeof(struct sockaddr_in));
-
- if (ifaces[total].flags & IFF_BROADCAST) {
- strioctl.ic_cmd = SIOCGIFBRDADDR;
- strioctl.ic_dp = (char *)&ifreq;
- strioctl.ic_len = sizeof(struct ifreq);
- if (ioctl(fd, I_STR, &strioctl) != 0) {
- continue;
- }
- memcpy(&ifaces[total].bcast, &ifreq.ifr_broadaddr,
- sizeof(struct sockaddr_in));
- } else if (ifaces[total].flags & IFF_POINTOPOINT) {
- strioctl.ic_cmd = SIOCGIFDSTADDR;
- strioctl.ic_dp = (char *)&ifreq;
- strioctl.ic_len = sizeof(struct ifreq);
- if (ioctl(fd, I_STR, &strioctl) != 0) {
- continue;
- }
- memcpy(&ifaces[total].bcast, &ifreq.ifr_dstaddr,
- sizeof(struct sockaddr_in));
- } else {
- continue;
- }
-
- total++;
- }
-
- close(fd);
-
- return total;
-}
-
-#define _FOUND_IFACE_ANY
-#endif /* HAVE_IFACE_IFREQ */
-#ifdef HAVE_IFACE_AIX
-
-/****************************************************************************
- This one is for AIX (tested on 4.2).
-****************************************************************************/
-
-static int _get_interfaces(struct iface_struct *ifaces, int max_interfaces)
-{
- char buff[8192];
- int fd, i;
- struct ifconf ifc;
- struct ifreq *ifr=NULL;
- int total = 0;
-
- if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
- return -1;
- }
-
-
- ifc.ifc_len = sizeof(buff);
- ifc.ifc_buf = buff;
-
- if (ioctl(fd, SIOCGIFCONF, &ifc) != 0) {
- close(fd);
- return -1;
- }
-
- ifr = ifc.ifc_req;
-
- /* Loop through interfaces */
- i = ifc.ifc_len;
-
- while (i > 0 && total < max_interfaces) {
- uint_t inc;
-
- memset(&ifaces[total], '\0', sizeof(ifaces[total]));
-
- inc = ifr->ifr_addr.sa_len;
-
- if (ioctl(fd, SIOCGIFFLAGS, ifr) != 0) {
- goto next;
- }
-
- ifaces[total].flags = ifr->ifr_flags;
-
- if (!(ifaces[total].flags & IFF_UP)) {
- goto next;
- }
-
- if (ioctl(fd, SIOCGIFADDR, ifr) != 0) {
- goto next;
- }
-
- memcpy(&ifaces[total].ip, &ifr->ifr_addr,
- sizeof(struct sockaddr_in));
-
- strlcpy(ifaces[total].name, ifr->ifr_name,
- sizeof(ifaces[total].name));
-
- if (ioctl(fd, SIOCGIFNETMASK, ifr) != 0) {
- goto next;
- }
-
- memcpy(&ifaces[total].netmask, &ifr->ifr_addr,
- sizeof(struct sockaddr_in));
-
- if (ifaces[total].flags & IFF_BROADCAST) {
- if (ioctl(fd, SIOCGIFBRDADDR, ifr) != 0) {
- goto next;
- }
- memcpy(&ifaces[total].bcast, &ifr->ifr_broadaddr,
- sizeof(struct sockaddr_in));
- } else if (ifaces[total].flags & IFF_POINTOPOINT) {
- if (ioctl(fd, SIOCGIFDSTADDR, ifr) != 0) {
- goto next;
- }
- memcpy(&ifaces[total].bcast, &ifr->ifr_dstaddr,
- sizeof(struct sockaddr_in));
- } else {
- goto next;
- }
-
-
- total++;
-
- next:
- /*
- * Patch from Archie Cobbs (archie@whistle.com). The
- * addresses in the SIOCGIFCONF interface list have a
- * minimum size. Usually this doesn't matter, but if
- * your machine has tunnel interfaces, etc. that have
- * a zero length "link address", this does matter. */
-
- if (inc < sizeof(ifr->ifr_addr))
- inc = sizeof(ifr->ifr_addr);
- inc += IFNAMSIZ;
-
- ifr = (struct ifreq*) (((char*) ifr) + inc);
- i -= inc;
- }
-
- close(fd);
- return total;
-}
-
-#define _FOUND_IFACE_ANY
-#endif /* HAVE_IFACE_AIX */
-#ifndef _FOUND_IFACE_ANY
-static int _get_interfaces(struct iface_struct *ifaces, int max_interfaces)
-{
- return -1;
-}
-#endif
-
-
static int iface_comp(struct iface_struct *i1, struct iface_struct *i2)
{
int r;
return total;
}
-
-#ifdef AUTOCONF_TEST
-/* this is the autoconf driver to test get_interfaces() */
-
-static socklen_t calc_sa_size(struct sockaddr *psa)
-{
- socklen_t sl = sizeof(struct sockaddr_in);
-#if defined(HAVE_IPV6)
- if (psa->sa_family == AF_INET6) {
- sl = sizeof(struct sockaddr_in6);
- }
-#endif
- return sl;
-}
-
- int main()
-{
- struct iface_struct ifaces[MAX_INTERFACES];
- int total = get_interfaces(ifaces, MAX_INTERFACES);
- int i;
-
- printf("got %d interfaces:\n", total);
- if (total <= 0) {
- exit(1);
- }
-
- for (i=0;i<total;i++) {
- char addr[INET6_ADDRSTRLEN];
- int ret;
- printf("%-10s ", ifaces[i].name);
- addr[0] = '\0';
- ret = getnameinfo((struct sockaddr *)&ifaces[i].ip,
- calc_sa_size(&ifaces[i].ip),
- addr, sizeof(addr),
- NULL, 0, NI_NUMERICHOST);
- printf("IP=%s ", addr);
- addr[0] = '\0';
- ret = getnameinfo((struct sockaddr *)&ifaces[i].netmask,
- calc_sa_size(&ifaces[i].netmask),
- addr, sizeof(addr),
- NULL, 0, NI_NUMERICHOST);
- printf("NETMASK=%s ", addr);
- addr[0] = '\0';
- ret = getnameinfo((struct sockaddr *)&ifaces[i].bcast,
- calc_sa_size(&ifaces[i].bcast),
- addr, sizeof(addr),
- NULL, 0, NI_NUMERICHOST);
- printf("BCAST=%s\n", addr);
- }
- return 0;
-}
-#endif
git.samba.org / ira / wip.git / commitdiff