mirror of
https://github.com/curl/curl.git
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131 lines
3.1 KiB
C
131 lines
3.1 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2005, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* $Id$
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***************************************************************************/
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#include "setup.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include "if2ip.h"
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#if !defined(WIN32) && !defined(__BEOS__) && !defined(__CYGWIN32__) && \
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!defined(__riscos__) && !defined(__INTERIX) && !defined(NETWARE) && \
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!defined(_AMIGASF)
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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/* This must be before net/if.h for AIX 3.2 to enjoy life */
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#include <sys/time.h>
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#endif
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#ifdef HAVE_NET_IF_H
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#include <net/if.h>
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#endif
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#ifdef HAVE_SYS_IOCTL_H
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#include <sys/ioctl.h>
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#endif
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#ifdef HAVE_NETDB_H
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#include <netdb.h>
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#endif
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#ifdef HAVE_SYS_SOCKIO_H
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#include <sys/sockio.h>
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#endif
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#ifdef VMS
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#include <inet.h>
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#endif
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#include "inet_ntop.h"
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#include "memory.h"
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/* The last #include file should be: */
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#include "memdebug.h"
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#define SYS_ERROR -1
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char *Curl_if2ip(const char *interface, char *buf, int buf_size)
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{
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int dummy;
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char *ip=NULL;
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if(!interface)
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return NULL;
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dummy = socket(AF_INET, SOCK_STREAM, 0);
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if (SYS_ERROR == dummy) {
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return NULL;
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}
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else {
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struct ifreq req;
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size_t len = strlen(interface);
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memset(&req, 0, sizeof(req));
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if(len >= sizeof(req.ifr_name))
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return NULL; /* this can't be a fine interface name */
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memcpy(req.ifr_name, interface, len+1);
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req.ifr_addr.sa_family = AF_INET;
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#ifdef IOCTL_3_ARGS
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if (SYS_ERROR == ioctl(dummy, SIOCGIFADDR, &req)) {
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#else
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if (SYS_ERROR == ioctl(dummy, SIOCGIFADDR, &req, sizeof(req))) {
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#endif
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sclose(dummy);
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return NULL;
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}
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else {
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struct in_addr in;
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struct sockaddr_in *s = (struct sockaddr_in *)&req.ifr_dstaddr;
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memcpy(&in, &(s->sin_addr.s_addr), sizeof(in));
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ip = (char *) Curl_inet_ntop(s->sin_family, &in, buf, buf_size);
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}
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sclose(dummy);
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}
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return ip;
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}
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/* -- end of if2ip() -- */
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#else
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char *Curl_if2ip(const char *interf, char *buf, int buf_size)
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{
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(void) interf;
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(void) buf;
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(void) buf_size;
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return NULL;
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}
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#endif
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