102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
/*
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* Copyright (c) 2009 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Portions Copyright (c) 2009, Secure Endpoints Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <config.h>
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#include <err.h>
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#include "roken.h"
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#include <ifaddrs.h>
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static void
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print_addr(const char *s, struct sockaddr *sa)
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{
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int i;
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printf(" %s=%d/", s, sa->sa_family);
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#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
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for(i = 0; i < sa->sa_len - ((long)sa->sa_data - (long)&sa->sa_family); i++)
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printf("%02x", ((unsigned char*)sa->sa_data)[i]);
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#else
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for(i = 0; i < sizeof(sa->sa_data); i++)
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printf("%02x", ((unsigned char*)sa->sa_data)[i]);
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#endif
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printf("\n");
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}
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static void
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print_ifaddrs(struct ifaddrs *x)
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{
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struct ifaddrs *p;
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for(p = x; p; p = p->ifa_next) {
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printf("%s\n", p->ifa_name);
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printf(" flags=%x\n", p->ifa_flags);
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if(p->ifa_addr)
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print_addr("addr", p->ifa_addr);
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if(p->ifa_dstaddr)
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print_addr("dstaddr", p->ifa_dstaddr);
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if(p->ifa_netmask)
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print_addr("netmask", p->ifa_netmask);
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printf(" %p\n", p->ifa_data);
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}
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}
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int
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main(int argc, char **argv)
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{
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struct ifaddrs *addrs = NULL;
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int ret;
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if (rk_SOCK_INIT())
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errx(1, "Couldn't initialize sockets. Err=%d\n", rk_SOCK_ERRNO);
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ret = getifaddrs(&addrs);
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if (ret != 0)
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err(1, "getifaddrs");
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if (addrs == NULL)
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errx(1, "address == NULL");
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print_ifaddrs(addrs);
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/* Check that freeifaddrs doesn't crash */
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freeifaddrs(addrs);
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if (rk_SOCK_EXIT())
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errx(1, "Couldn't uninitialize sockets. Err=%d\n", rk_SOCK_ERRNO);
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return 0;
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}
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