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/* $Id: host.cpp 15718 2009-03-15 00:32:18Z rubidium $ */
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/** @file host.cpp Functions related to getting host specific data (IPs). */
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#include "../../stdafx.h"
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#include "../../debug.h"
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#include "os_abstraction.h"
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#include "../../core/alloc_func.hpp"
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* Internal implementation for finding the broadcast IPs.
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* This function is implemented multiple times for multiple targets.
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* @param broadcast the list of broadcasts to write into.
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* @param limit the maximum number of items to add.
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static int NetworkFindBroadcastIPsInternal(uint32 *broadcast, int limit);
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static int NetworkFindBroadcastIPsInternal(uint32 *broadcast, int limit) // PSP implementation
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#elif defined(BEOS_NET_SERVER) /* doesn't have neither getifaddrs or net/if.h */
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/* Based on Andrew Bachmann's netstat+.c. Big thanks to him! */
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int _netstat(int fd, char **output, int verbose);
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int seek_past_header(char **pos, const char *header)
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char *new_pos = strstr(*pos, header);
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*pos += strlen(header) + new_pos - *pos + 1;
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static int NetworkFindBroadcastIPsInternal(uint32 *broadcast, int limit) // BEOS implementation
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int sock = socket(AF_INET, SOCK_DGRAM, 0);
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DEBUG(net, 0, "[core] error creating socket");
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char *output_pointer = NULL;
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int output_length = _netstat(sock, &output_pointer, 1);
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if (output_length < 0) {
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DEBUG(net, 0, "[core] error running _netstat");
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char **output = &output_pointer;
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if (seek_past_header(output, "IP Interfaces:") == B_OK) {
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while (index != limit) {
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uint32 n, fields, read;
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uint8 i1, i2, i3, i4, j1, j2, j3, j4;
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struct in_addr inaddr;
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fields = sscanf(*output, "%u: %hhu.%hhu.%hhu.%hhu, netmask %hhu.%hhu.%hhu.%hhu%n",
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&n, &i1, &i2, &i3, &i4, &j1, &j2, &j3, &j4, &read);
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ip = (uint32)i1 << 24 | (uint32)i2 << 16 | (uint32)i3 << 8 | (uint32)i4;
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netmask = (uint32)j1 << 24 | (uint32)j2 << 16 | (uint32)j3 << 8 | (uint32)j4;
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if (ip != INADDR_LOOPBACK && ip != INADDR_ANY) {
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inaddr.s_addr = htonl(ip | ~netmask);
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broadcast[index] = inaddr.s_addr;
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#elif defined(HAVE_GETIFADDRS)
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static int NetworkFindBroadcastIPsInternal(uint32 *broadcast, int limit) // GETIFADDRS implementation
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struct ifaddrs *ifap, *ifa;
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if (getifaddrs(&ifap) != 0) return 0;
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for (ifa = ifap; ifa != NULL && index != limit; ifa = ifa->ifa_next) {
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if (!(ifa->ifa_flags & IFF_BROADCAST)) continue;
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if (ifa->ifa_broadaddr == NULL) continue;
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if (ifa->ifa_broadaddr->sa_family != AF_INET) continue;
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broadcast[index] = ((struct sockaddr_in*)ifa->ifa_broadaddr)->sin_addr.s_addr;
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static int NetworkFindBroadcastIPsInternal(uint32 *broadcast, int limit) // Win32 implementation
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SOCKET sock = socket(AF_INET, SOCK_DGRAM, 0);
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if (sock == INVALID_SOCKET) return 0;
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INTERFACE_INFO *ifo = AllocaM(INTERFACE_INFO, limit);
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memset(ifo, 0, limit * sizeof(*ifo));
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if ((WSAIoctl(sock, SIO_GET_INTERFACE_LIST, NULL, 0, &ifo[0], limit * sizeof(*ifo), &len, NULL, NULL)) != 0) {
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for (uint j = 0; j < len / sizeof(*ifo) && index != limit; j++) {
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if (ifo[j].iiFlags & IFF_LOOPBACK) continue;
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if (!(ifo[j].iiFlags & IFF_BROADCAST)) continue;
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/* iiBroadcast is unusable, because it always seems to be set to 255.255.255.255. */
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broadcast[index++] = ifo[j].iiAddress.AddressIn.sin_addr.s_addr | ~ifo[j].iiNetmask.AddressIn.sin_addr.s_addr;
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#else /* not HAVE_GETIFADDRS */
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#include "../../string_func.h"
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static int NetworkFindBroadcastIPsInternal(uint32 *broadcast, int limit) // !GETIFADDRS implementation
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SOCKET sock = socket(AF_INET, SOCK_DGRAM, 0);
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if (sock == INVALID_SOCKET) return 0;
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char buf[4 * 1024]; // Arbitrary buffer size
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struct ifconf ifconf;
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ifconf.ifc_len = sizeof(buf);
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ifconf.ifc_buf = buf;
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if (ioctl(sock, SIOCGIFCONF, &ifconf) == -1) {
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const char *buf_end = buf + ifconf.ifc_len;
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for (const char *p = buf; p < buf_end && index != limit;) {
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const struct ifreq *req = (const struct ifreq*)p;
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if (req->ifr_addr.sa_family == AF_INET) {
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strecpy(r.ifr_name, req->ifr_name, lastof(r.ifr_name));
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if (ioctl(sock, SIOCGIFFLAGS, &r) != -1 &&
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r.ifr_flags & IFF_BROADCAST &&
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ioctl(sock, SIOCGIFBRDADDR, &r) != -1) {
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broadcast[index++] = ((struct sockaddr_in*)&r.ifr_broadaddr)->sin_addr.s_addr;
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p += sizeof(struct ifreq);
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#if defined(AF_LINK) && !defined(SUNOS)
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p += req->ifr_addr.sa_len - sizeof(struct sockaddr);
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#endif /* all NetworkFindBroadcastIPsInternals */
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* Find the IPs to broadcast.
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* @param broadcast the list of broadcasts to write into.
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* @param limit the maximum number of items to add.
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void NetworkFindBroadcastIPs(uint32 *broadcast, int limit)
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int count = NetworkFindBroadcastIPsInternal(broadcast, limit);
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/* Make sure the list is terminated. */
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broadcast[count] = 0;
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/* Now display to the debug all the detected ips */
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DEBUG(net, 3, "Detected broadcast addresses:");
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for (int i = 0; broadcast[i] != 0; i++) {
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DEBUG(net, 3, "%d) %s", i, inet_ntoa(*(struct in_addr *)&broadcast[i])); // inet_ntoa(inaddr));
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* Resolve a hostname to an ip.
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* @param hsotname the hostname to resolve
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* @return the IP belonging to that hostname, or 0 on failure.
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uint32 NetworkResolveHost(const char *hostname)
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/* Is this an IP address? */
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in_addr_t ip = inet_addr(hostname);
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if (ip != INADDR_NONE) return ip;
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/* No, try to resolve the name */
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struct hostent *he = gethostbyname(hostname);
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DEBUG(net, 0, "[NET] Cannot resolve %s", hostname);
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addr = *(struct in_addr *)he->h_addr_list[0];
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/* Create a resolver */
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if (sceNetResolverCreate(&rid, buf, sizeof(buf)) < 0) {
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DEBUG(net, 0, "[NET] Error connecting resolver");
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/* Try to resolve the name */
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if (sceNetResolverStartNtoA(rid, hostname, &addr, 2, 3) < 0) {
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DEBUG(net, 0, "[NET] Cannot resolve %s", hostname);
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sceNetResolverDelete(rid);
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sceNetResolverDelete(rid);
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DEBUG(net, 1, "[NET] Resolved %s to %s", hostname, inet_ntoa(addr));
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#endif /* ENABLE_NETWORK */
added
removed
src/network/core/host.cpp
