summaryrefslogtreecommitdiff
path: root/thirdparty/libwebsockets/lib/misc/getifaddrs.c
diff options
context:
space:
mode:
Diffstat (limited to 'thirdparty/libwebsockets/lib/misc/getifaddrs.c')
-rw-r--r--thirdparty/libwebsockets/lib/misc/getifaddrs.c270
1 files changed, 0 insertions, 270 deletions
diff --git a/thirdparty/libwebsockets/lib/misc/getifaddrs.c b/thirdparty/libwebsockets/lib/misc/getifaddrs.c
deleted file mode 100644
index 735b899f48..0000000000
--- a/thirdparty/libwebsockets/lib/misc/getifaddrs.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/*
- * Copyright (c) 2000 - 2001 Kungliga Tekniska H�gskolan
- * (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.
- *
- * originally downloaded from
- *
- * http://ftp.uninett.no/pub/OpenBSD/src/kerberosV/src/lib/roken/getifaddrs.c
- */
-
-#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>
-#include "core/private.h"
-
-#ifdef LWS_HAVE_SYS_SOCKIO_H
-#include <sys/sockio.h>
-#endif
-
-#ifdef LWS_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 = lws_zalloc(buf_size, "getifaddrs2");
- 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;
- lws_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 LWS_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 = lws_malloc(sizeof(**end), "getifaddrs");
-
- (*end)->ifa_next = NULL;
- (*end)->ifa_name = strdup(ifr->ifr_name);
- (*end)->ifa_flags = ifreq.ifr_flags;
- (*end)->ifa_addr = lws_malloc(salen, "getifaddrs");
- 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 =
- lws_malloc(sizeof(ifr->ifr_broadaddr), "getifaddrs");
- memcpy((*end)->ifa_broadaddr, &ifr->ifr_broadaddr,
- sizeof(ifr->ifr_broadaddr));
- } else if (ifreq.ifr_flags & IFF_POINTOPOINT) {
- (*end)->ifa_dstaddr =
- lws_malloc(sizeof(ifr->ifr_dstaddr), "getifaddrs");
- 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);
- lws_free(buf);
- return 0;
-
-error_out:
- close(fd);
- lws_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(LWS_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; ) {
- lws_free(p->ifa_name);
- lws_free(p->ifa_addr);
- lws_free(p->ifa_dstaddr);
- lws_free(p->ifa_netmask);
- lws_free(p->ifa_data);
- q = p;
- p = p->ifa_next;
- lws_free(q);
- }
-}
-
-#ifdef TEST
-
-void
-print_addr(const char *s, struct sockaddr *sa)
-{
- int i;
- printf(" %s=%d/", s, sa->sa_family);
-#ifdef LWS_HAVE_STRUCT_SOCKADDR_SA_LEN
- for (i = 0;
- i < sa->sa_len - ((lws_intptr_t)sa->sa_data - (lws_intptr_t)&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
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-19 07:21:26 +0000