| 1 | #include <errno.h>
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| 2 | #include <stdio.h>
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| 3 | #include <string.h>
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| 4 | #include <stdlib.h>
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| 5 | #include <fcntl.h>
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| 6 | #include <ifaddrs.h>
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| 7 | #include <sys/ioctl.h>
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| 8 | #include <sys/socket.h>
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| 9 | #include <sys/types.h>
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| 10 | #include <netinet/in.h>
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| 11 |
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| 12 | #include <net/gen/in.h>
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| 13 | #include <net/gen/ip_io.h>
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| 14 | #include <net/gen/tcp.h>
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| 15 | #include <net/gen/tcp_io.h>
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| 16 | #include <net/gen/udp.h>
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| 17 | #include <net/gen/udp_io.h>
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| 18 |
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| 19 | int
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| 20 | getifaddrs(struct ifaddrs **ifap)
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| 21 | {
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| 22 | static int fd = -1;
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| 23 | nwio_ipconf_t ipconf;
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| 24 | int flags, err, r;
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| 25 | static struct ifaddrs ifa;
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| 26 | static struct sockaddr_in addr, netmask;
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| 27 |
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| 28 | memset(&ifa, 0, sizeof(ifa));
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| 29 | memset(&addr, 0, sizeof(addr));
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| 30 | memset(&netmask, 0, sizeof(netmask));
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| 31 | ifa.ifa_next = NULL;
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| 32 | ifa.ifa_name = "ip";
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| 33 | addr.sin_family = netmask.sin_family = AF_INET;
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| 34 | ifa.ifa_addr = (struct sockaddr *) &addr;
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| 35 | ifa.ifa_netmask = (struct sockaddr *) &netmask;
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| 36 | addr.sin_addr.s_addr = 0;
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| 37 | netmask.sin_addr.s_addr = 0;
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| 38 |
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| 39 | if(fd < 0) {
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| 40 | char *ipd;
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| 41 | if(!(ipd=getenv("IP_DEVICE")))
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| 42 | ipd="/dev/ip";
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| 43 | if((fd = open(ipd, O_RDWR)) < 0)
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| 44 | return -1;
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| 45 | }
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| 46 |
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| 47 | /* Code taken from commands/simple/ifconfig.c. */
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| 48 |
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| 49 | if((flags = fcntl(fd, F_GETFL)) < 0 ||
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| 50 | fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0 ||
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| 51 | ioctl(fd, NWIOGIPCONF, &ipconf))
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| 52 | return 0; /* Report interface as down. */
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| 53 |
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| 54 | addr.sin_addr.s_addr = ipconf.nwic_ipaddr;
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| 55 | netmask.sin_addr.s_addr = ipconf.nwic_netmask;
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| 56 | if(addr.sin_addr.s_addr) ifa.ifa_flags = IFF_UP;
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| 57 |
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| 58 | /* Just report on this interface. */
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| 59 |
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| 60 | *ifap = &ifa;
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| 61 |
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| 62 | return 0;
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| 63 | }
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| 64 |
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| 65 | void
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| 66 | freeifaddrs(struct ifaddrs *ifp)
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| 67 | {
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| 68 | /* getifaddrs points to static data, so no need to free. */
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| 69 | ;
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| 70 | }
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| 71 |
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