--- /dev/null
+/* downloaded from http://ftp.uninett.no/pub/OpenBSD/src/kerberosV/src/lib/roken/getifaddrs.c */
+#if !HAVE_GETIFADDRS
+/*
+ * Copyright (c) 2000 - 2001 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#ifdef HAVE_SYS_SOCKIO_H
+#include <sys/sockio.h>
+#endif
+
+#ifdef HAVE_NETINET_IN6_VAR_H
+#include <netinet/in6_var.h>
+#endif
+
+#ifndef max
+#define max(a,b) ((a)>(b)?(a):(b))
+#endif
+
+#include "getifaddrs.h"
+
+static int
+getifaddrs2(struct ifaddrs **ifap,
+ int af, int siocgifconf, int siocgifflags,
+ size_t ifreq_sz)
+{
+ int ret;
+ int fd;
+ size_t buf_size;
+ char *buf;
+ struct ifconf ifconf;
+ char *p;
+ size_t sz;
+ struct sockaddr sa_zero;
+ struct ifreq *ifr;
+
+ struct ifaddrs *start, **end = &start;
+
+ buf = NULL;
+
+ memset (&sa_zero, 0, sizeof(sa_zero));
+ fd = socket(af, SOCK_DGRAM, 0);
+ if (fd < 0)
+ return -1;
+
+ buf_size = 8192;
+ for (;;) {
+ buf = calloc(1, buf_size);
+ if (buf == NULL) {
+ ret = ENOMEM;
+ goto error_out;
+ }
+ ifconf.ifc_len = buf_size;
+ ifconf.ifc_buf = buf;
+
+ /*
+ * Solaris returns EINVAL when the buffer is too small.
+ */
+ if (ioctl (fd, siocgifconf, &ifconf) < 0 && errno != EINVAL) {
+ ret = errno;
+ goto error_out;
+ }
+ /*
+ * Can the difference between a full and a overfull buf
+ * be determined?
+ */
+
+ if (ifconf.ifc_len < (int)buf_size)
+ break;
+ free (buf);
+ buf_size *= 2;
+ }
+
+ for (p = ifconf.ifc_buf;
+ p < ifconf.ifc_buf + ifconf.ifc_len;
+ p += sz) {
+ struct ifreq ifreq;
+ struct sockaddr *sa;
+ size_t salen;
+
+ ifr = (struct ifreq *)p;
+ sa = &ifr->ifr_addr;
+
+ sz = ifreq_sz;
+ salen = sizeof(struct sockaddr);
+#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
+ salen = sa->sa_len;
+ sz = max(sz, sizeof(ifr->ifr_name) + sa->sa_len);
+#endif
+#ifdef SA_LEN
+ salen = SA_LEN(sa);
+ sz = max(sz, sizeof(ifr->ifr_name) + SA_LEN(sa));
+#endif
+ memset (&ifreq, 0, sizeof(ifreq));
+ memcpy (ifreq.ifr_name, ifr->ifr_name, sizeof(ifr->ifr_name));
+
+ if (ioctl(fd, siocgifflags, &ifreq) < 0) {
+ ret = errno;
+ goto error_out;
+ }
+
+ *end = malloc(sizeof(**end));
+
+ (*end)->ifa_next = NULL;
+ (*end)->ifa_name = strdup(ifr->ifr_name);
+ (*end)->ifa_flags = ifreq.ifr_flags;
+ (*end)->ifa_addr = malloc(salen);
+ memcpy((*end)->ifa_addr, sa, salen);
+ (*end)->ifa_netmask = NULL;
+
+#if 0
+ /* fix these when we actually need them */
+ if(ifreq.ifr_flags & IFF_BROADCAST) {
+ (*end)->ifa_broadaddr = malloc(sizeof(ifr->ifr_broadaddr));
+ memcpy((*end)->ifa_broadaddr, &ifr->ifr_broadaddr,
+ sizeof(ifr->ifr_broadaddr));
+ } else if(ifreq.ifr_flags & IFF_POINTOPOINT) {
+ (*end)->ifa_dstaddr = malloc(sizeof(ifr->ifr_dstaddr));
+ memcpy((*end)->ifa_dstaddr, &ifr->ifr_dstaddr,
+ sizeof(ifr->ifr_dstaddr));
+ } else
+ (*end)->ifa_dstaddr = NULL;
+#else
+ (*end)->ifa_dstaddr = NULL;
+#endif
+
+ (*end)->ifa_data = NULL;
+
+ end = &(*end)->ifa_next;
+
+ }
+ *ifap = start;
+ close(fd);
+ free(buf);
+ return 0;
+ error_out:
+ close(fd);
+ free(buf);
+ errno = ret;
+ return -1;
+}
+
+int
+getifaddrs(struct ifaddrs **ifap)
+{
+ int ret = -1;
+ errno = ENXIO;
+#if defined(AF_INET6) && defined(SIOCGIF6CONF) && defined(SIOCGIF6FLAGS)
+ if (ret)
+ ret = getifaddrs2 (ifap, AF_INET6, SIOCGIF6CONF, SIOCGIF6FLAGS,
+ sizeof(struct in6_ifreq));
+#endif
+#if defined(HAVE_IPV6) && defined(SIOCGIFCONF)
+ if (ret)
+ ret = getifaddrs2 (ifap, AF_INET6, SIOCGIFCONF, SIOCGIFFLAGS,
+ sizeof(struct ifreq));
+#endif
+#if defined(AF_INET) && defined(SIOCGIFCONF) && defined(SIOCGIFFLAGS)
+ if (ret)
+ ret = getifaddrs2 (ifap, AF_INET, SIOCGIFCONF, SIOCGIFFLAGS,
+ sizeof(struct ifreq));
+#endif
+ return ret;
+}
+
+void
+freeifaddrs(struct ifaddrs *ifp)
+{
+ struct ifaddrs *p, *q;
+
+ for(p = ifp; p; ) {
+ free(p->ifa_name);
+ if(p->ifa_addr)
+ free(p->ifa_addr);
+ if(p->ifa_dstaddr)
+ free(p->ifa_dstaddr);
+ if(p->ifa_netmask)
+ free(p->ifa_netmask);
+ if(p->ifa_data)
+ free(p->ifa_data);
+ q = p;
+ p = p->ifa_next;
+ free(q);
+ }
+}
+
+#ifdef TEST
+
+void
+print_addr(const char *s, struct sockaddr *sa)
+{
+ int i;
+ printf(" %s=%d/", s, sa->sa_family);
+#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
+ for(i = 0; i < sa->sa_len - ((long)sa->sa_data - (long)&sa->sa_family); i++)
+ printf("%02x", ((unsigned char*)sa->sa_data)[i]);
+#else
+ for(i = 0; i < sizeof(sa->sa_data); i++)
+ printf("%02x", ((unsigned char*)sa->sa_data)[i]);
+#endif
+ printf("\n");
+}
+
+void
+print_ifaddrs(struct ifaddrs *x)
+{
+ struct ifaddrs *p;
+
+ for(p = x; p; p = p->ifa_next) {
+ printf("%s\n", p->ifa_name);
+ printf(" flags=%x\n", p->ifa_flags);
+ if(p->ifa_addr)
+ print_addr("addr", p->ifa_addr);
+ if(p->ifa_dstaddr)
+ print_addr("dstaddr", p->ifa_dstaddr);
+ if(p->ifa_netmask)
+ print_addr("netmask", p->ifa_netmask);
+ printf(" %p\n", p->ifa_data);
+ }
+}
+
+int
+main()
+{
+ struct ifaddrs *a = NULL, *b;
+ getifaddrs2(&a, AF_INET, SIOCGIFCONF, SIOCGIFFLAGS, sizeof(struct ifreq));
+ print_ifaddrs(a);
+ printf("---\n");
+ getifaddrs(&b);
+ print_ifaddrs(b);
+ return 0;
+}
+#endif
+#endif
--- /dev/null
+#if HAVE_GETIFADDRS
+#include <sys/types.h>
+#include <ifaddrs.h>
+#else
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Copyright (c) 2000 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* $KTH: ifaddrs.hin,v 1.3 2000/12/11 00:01:13 assar Exp $ */
+
+#ifndef __ifaddrs_h__
+#define __ifaddrs_h__
+
+/*
+ * the interface is defined in terms of the fields below, and this is
+ * sometimes #define'd, so there seems to be no simple way of solving
+ * this and this seemed the best. */
+
+#undef ifa_dstaddr
+
+struct ifaddrs {
+ struct ifaddrs *ifa_next;
+ char *ifa_name;
+ unsigned int ifa_flags;
+ struct sockaddr *ifa_addr;
+ struct sockaddr *ifa_netmask;
+ struct sockaddr *ifa_dstaddr;
+ void *ifa_data;
+};
+
+#ifndef ifa_broadaddr
+#define ifa_broadaddr ifa_dstaddr
+#endif
+
+int getifaddrs(struct ifaddrs**);
+
+void freeifaddrs(struct ifaddrs*);
+
+#endif /* __ifaddrs_h__ */
+
+#ifdef __cplusplus
+}
+#endif
+#endif
projects / profile / ivi / libwebsockets.git / commitdiff