702 lines
24 KiB
C
702 lines
24 KiB
C
/*
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* ICMP
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*
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* Francois Gouget, 1999, based on the work of
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* RW Hall, 1999, based on public domain code PING.C by Mike Muus (1983)
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* and later works (c) 1989 Regents of Univ. of California - see copyright
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* notice at end of source-code.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/* Future work:
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* - Systems like FreeBSD don't seem to support the IP_TTL option and maybe others.
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* But using IP_HDRINCL and building the IP header by hand might work.
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* - Not all IP options are supported.
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* - Are ICMP handles real handles, i.e. inheritable and all? There might be some
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* more work to do here, including server side stuff with synchronization.
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* - This API should probably be thread safe. Is it really?
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* - Using the winsock functions has not been tested.
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*/
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#include "config.h"
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#include <sys/types.h>
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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_NETDB_H
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# include <netdb.h>
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#endif
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#ifdef HAVE_NETINET_IN_SYSTM_H
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# include <netinet/in_systm.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_SYS_TIME_H
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# include <sys/time.h>
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#endif
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#include <stdarg.h>
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#include <string.h>
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#include <errno.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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#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_POLL_H
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# include <sys/poll.h>
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#endif
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#define USE_WS_PREFIX
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#include "windef.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "winternl.h"
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#include "ipexport.h"
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#include "icmpapi.h"
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#include "wine/debug.h"
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/* Set up endianness macros for the ip and ip_icmp BSD headers */
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#ifndef BIG_ENDIAN
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#define BIG_ENDIAN 4321
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#endif
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#ifndef LITTLE_ENDIAN
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#define LITTLE_ENDIAN 1234
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#endif
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#ifndef BYTE_ORDER
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#ifdef WORDS_BIGENDIAN
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#define BYTE_ORDER BIG_ENDIAN
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#else
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#endif /* BYTE_ORDER */
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#define u_int16_t WORD
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#define u_int32_t DWORD
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/* These are BSD headers. We use these here because they are needed on
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* libc5 Linux systems. On other platforms they are usually simply more
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* complete than the native stuff, and cause less portability problems
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* so we use them anyway.
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*/
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#include "ip.h"
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#include "ip_icmp.h"
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WINE_DEFAULT_DEBUG_CHANNEL(icmp);
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WINE_DECLARE_DEBUG_CHANNEL(winediag);
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typedef struct {
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int sid;
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IP_OPTION_INFORMATION default_opts;
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} icmp_t;
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#define IP_OPTS_UNKNOWN 0
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#define IP_OPTS_DEFAULT 1
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#define IP_OPTS_CUSTOM 2
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#define MAXIPLEN 60
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#define MAXICMPLEN 76
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/* The sequence number is unique process wide, so that all threads
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* have a distinct sequence number.
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*/
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static LONG icmp_sequence=0;
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static int in_cksum(u_short *addr, int len)
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{
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int nleft=len;
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u_short *w = addr;
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int sum = 0;
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u_short answer = 0;
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while (nleft > 1) {
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sum += *w++;
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nleft -= 2;
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}
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if (nleft == 1) {
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*(u_char *)(&answer) = *(u_char *)w;
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sum += answer;
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}
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sum = (sum >> 16) + (sum & 0xffff);
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sum += (sum >> 16);
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answer = ~sum;
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return(answer);
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}
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/* Receive a reply (IPv4); this function uses, takes ownership of and will always free `buffer` */
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static DWORD icmp_get_reply(int sid, unsigned char *buffer, DWORD send_time, void *reply_buf, DWORD reply_size, DWORD timeout)
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{
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int repsize = MAXIPLEN + MAXICMPLEN + min(65535, reply_size);
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struct icmp *icmp_header = (struct icmp*)buffer;
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char *endbuf = (char*)reply_buf + reply_size;
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struct ip *ip_header = (struct ip*)buffer;
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struct icmp_echo_reply *ier = reply_buf;
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unsigned short id, seq, cksum;
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struct sockaddr_in addr;
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int ip_header_len = 0;
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socklen_t addrlen;
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struct pollfd fdr;
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DWORD recv_time;
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int res;
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id = icmp_header->icmp_id;
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seq = icmp_header->icmp_seq;
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cksum = icmp_header->icmp_cksum;
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fdr.fd = sid;
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fdr.events = POLLIN;
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addrlen = sizeof(addr);
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while (poll(&fdr,1,timeout)>0) {
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recv_time = GetTickCount();
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res=recvfrom(sid, buffer, repsize, 0, (struct sockaddr*)&addr, &addrlen);
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TRACE("received %d bytes from %s\n",res, inet_ntoa(addr.sin_addr));
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ier->Status=IP_REQ_TIMED_OUT;
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/* Check whether we should ignore this packet */
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if ((ip_header->ip_p==IPPROTO_ICMP) && (res>=sizeof(struct ip)+ICMP_MINLEN)) {
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ip_header_len=ip_header->ip_hl << 2;
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icmp_header=(struct icmp*)(((char*)ip_header)+ip_header_len);
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TRACE("received an ICMP packet of type,code=%d,%d\n",icmp_header->icmp_type,icmp_header->icmp_code);
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if (icmp_header->icmp_type==ICMP_ECHOREPLY) {
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if ((icmp_header->icmp_id==id) && (icmp_header->icmp_seq==seq))
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{
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ier->Status=IP_SUCCESS;
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SetLastError(NO_ERROR);
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}
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} else {
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switch (icmp_header->icmp_type) {
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case ICMP_UNREACH:
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switch (icmp_header->icmp_code) {
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case ICMP_UNREACH_HOST:
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#ifdef ICMP_UNREACH_HOST_UNKNOWN
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case ICMP_UNREACH_HOST_UNKNOWN:
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#endif
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#ifdef ICMP_UNREACH_ISOLATED
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case ICMP_UNREACH_ISOLATED:
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#endif
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#ifdef ICMP_UNREACH_HOST_PROHIB
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case ICMP_UNREACH_HOST_PROHIB:
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#endif
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#ifdef ICMP_UNREACH_TOSHOST
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case ICMP_UNREACH_TOSHOST:
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#endif
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ier->Status=IP_DEST_HOST_UNREACHABLE;
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break;
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case ICMP_UNREACH_PORT:
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ier->Status=IP_DEST_PORT_UNREACHABLE;
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break;
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case ICMP_UNREACH_PROTOCOL:
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ier->Status=IP_DEST_PROT_UNREACHABLE;
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break;
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case ICMP_UNREACH_SRCFAIL:
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ier->Status=IP_BAD_ROUTE;
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break;
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default:
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ier->Status=IP_DEST_NET_UNREACHABLE;
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}
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break;
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case ICMP_TIMXCEED:
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if (icmp_header->icmp_code==ICMP_TIMXCEED_REASS)
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ier->Status=IP_TTL_EXPIRED_REASSEM;
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else
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ier->Status=IP_TTL_EXPIRED_TRANSIT;
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break;
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case ICMP_PARAMPROB:
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ier->Status=IP_PARAM_PROBLEM;
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break;
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case ICMP_SOURCEQUENCH:
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ier->Status=IP_SOURCE_QUENCH;
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break;
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}
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if (ier->Status!=IP_REQ_TIMED_OUT) {
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struct ip* rep_ip_header;
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struct icmp* rep_icmp_header;
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/* The ICMP header size of all the packets we accept is the same */
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rep_ip_header=(struct ip*)(((char*)icmp_header)+ICMP_MINLEN);
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rep_icmp_header=(struct icmp*)(((char*)rep_ip_header)+(rep_ip_header->ip_hl << 2));
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/* Make sure that this is really a reply to our packet */
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if (ip_header_len+ICMP_MINLEN+(rep_ip_header->ip_hl << 2)+ICMP_MINLEN>ip_header->ip_len) {
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ier->Status=IP_REQ_TIMED_OUT;
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} else if ((rep_icmp_header->icmp_type!=ICMP_ECHO) ||
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(rep_icmp_header->icmp_code!=0) ||
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(rep_icmp_header->icmp_id!=id) ||
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/* windows doesn't check this checksum, else tracert */
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/* behind a Linux 2.2 masquerading firewall would fail*/
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/* (rep_icmp_header->icmp_cksum!=cksum) || */
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(rep_icmp_header->icmp_seq!=seq)) {
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/* This was not a reply to one of our packets after all */
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TRACE("skipping type,code=%d,%d id,seq=%d,%d cksum=%d\n",
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rep_icmp_header->icmp_type,rep_icmp_header->icmp_code,
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rep_icmp_header->icmp_id,rep_icmp_header->icmp_seq,
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rep_icmp_header->icmp_cksum);
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TRACE("expected type,code=8,0 id,seq=%d,%d cksum=%d\n",
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id,seq,
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cksum);
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ier->Status=IP_REQ_TIMED_OUT;
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}
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}
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}
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}
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if (ier->Status==IP_REQ_TIMED_OUT) {
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/* This packet was not for us.
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* Decrease the timeout so that we don't enter an endless loop even
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* if we get flooded with ICMP packets that are not for us.
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*/
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DWORD t = (recv_time - send_time);
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if (timeout > t) timeout -= t;
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else timeout = 0;
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continue;
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} else {
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/* Check free space, should be large enough for an ICMP_ECHO_REPLY and remainning icmp data */
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if (endbuf-(char *)ier < sizeof(struct icmp_echo_reply)+(res-ip_header_len-ICMP_MINLEN)) {
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res=ier-(ICMP_ECHO_REPLY *)reply_buf;
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SetLastError(IP_GENERAL_FAILURE);
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goto done;
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}
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/* This is a reply to our packet */
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memcpy(&ier->Address,&ip_header->ip_src,sizeof(IPAddr));
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/* Status is already set */
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ier->RoundTripTime= recv_time - send_time;
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ier->DataSize=res-ip_header_len-ICMP_MINLEN;
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ier->Reserved=0;
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ier->Data=endbuf-ier->DataSize;
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memcpy(ier->Data, ((char *)ip_header)+ip_header_len+ICMP_MINLEN, ier->DataSize);
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ier->Options.Ttl=ip_header->ip_ttl;
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ier->Options.Tos=ip_header->ip_tos;
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ier->Options.Flags=ip_header->ip_off >> 13;
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ier->Options.OptionsSize=ip_header_len-sizeof(struct ip);
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if (ier->Options.OptionsSize!=0) {
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ier->Options.OptionsData=(unsigned char *) ier->Data-ier->Options.OptionsSize;
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/* FIXME: We are supposed to rearrange the option's 'source route' data */
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memcpy(ier->Options.OptionsData, ((char *)ip_header)+ip_header_len, ier->Options.OptionsSize);
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endbuf=(char*)ier->Options.OptionsData;
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} else {
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ier->Options.OptionsData=NULL;
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endbuf=ier->Data;
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}
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/* Prepare for the next packet */
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ier++;
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/* Check out whether there is more but don't wait this time */
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timeout=0;
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}
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}
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res=ier-(ICMP_ECHO_REPLY*)reply_buf;
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if (res==0)
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SetLastError(IP_REQ_TIMED_OUT);
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done:
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if (res)
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{
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/* Move the data so there's no gap between it and the ICMP_ECHO_REPLY array */
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DWORD gap_size = endbuf - (char*)ier;
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if (gap_size)
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{
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memmove(ier, endbuf, ((char*)reply_buf + reply_size) - endbuf);
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/* Fix the pointers */
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while (ier-- != reply_buf)
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{
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ier->Data = (char*)ier->Data - gap_size;
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if (ier->Options.OptionsData)
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ier->Options.OptionsData -= gap_size;
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}
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/* According to MSDN, the reply buffer needs to hold space for a IO_STATUS_BLOCK,
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found at the very end of the reply. This is confirmed on Windows XP, but Vista
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and later do not store it anywhere and in fact don't even require it at all.
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However, in case old apps analyze this IO_STATUS_BLOCK and expect it, we mimic
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it and write it out if there's enough space available in the buffer. */
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if (gap_size >= sizeof(IO_STATUS_BLOCK))
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{
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IO_STATUS_BLOCK *io = (IO_STATUS_BLOCK*)((char*)reply_buf + reply_size - sizeof(IO_STATUS_BLOCK));
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io->Pointer = NULL; /* Always NULL or STATUS_SUCCESS */
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io->Information = reply_size - gap_size;
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}
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}
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}
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HeapFree(GetProcessHeap(), 0, buffer);
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TRACE("received %d replies\n",res);
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return res;
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}
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/*
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* Exported Routines.
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*/
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/***********************************************************************
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* Icmp6CreateFile (IPHLPAPI.@)
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*/
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HANDLE WINAPI Icmp6CreateFile(VOID)
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{
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icmp_t* icp;
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int sid=socket(AF_INET6,SOCK_RAW,IPPROTO_ICMPV6);
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if (sid < 0)
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{
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/* Some systems (e.g. Linux 3.0+ and Mac OS X) support
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non-privileged ICMP via SOCK_DGRAM type. */
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sid=socket(AF_INET6,SOCK_DGRAM,IPPROTO_ICMPV6);
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}
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if (sid < 0) {
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ERR_(winediag)("Failed to use ICMPV6 (network ping), this requires special permissions.\n");
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SetLastError(ERROR_ACCESS_DENIED);
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return INVALID_HANDLE_VALUE;
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}
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icp=HeapAlloc(GetProcessHeap(), 0, sizeof(*icp));
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if (icp==NULL) {
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close(sid);
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SetLastError(IP_NO_RESOURCES);
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return INVALID_HANDLE_VALUE;
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}
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icp->sid=sid;
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icp->default_opts.OptionsSize=IP_OPTS_UNKNOWN;
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return (HANDLE)icp;
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}
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/***********************************************************************
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* Icmp6SendEcho2 (IPHLPAPI.@)
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*/
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DWORD WINAPI Icmp6SendEcho2(
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HANDLE IcmpHandle,
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HANDLE Event,
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PIO_APC_ROUTINE ApcRoutine,
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PVOID ApcContext,
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struct sockaddr_in6* SourceAddress,
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struct sockaddr_in6* DestinationAddress,
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LPVOID RequestData,
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WORD RequestSize,
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PIP_OPTION_INFORMATION RequestOptions,
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LPVOID ReplyBuffer,
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DWORD ReplySize,
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DWORD Timeout
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)
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{
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FIXME("(%p, %p, %p, %p, %p, %p, %p, %d, %p, %p, %d, %d): stub\n", IcmpHandle, Event,
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ApcRoutine, ApcContext, SourceAddress, DestinationAddress, RequestData,
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RequestSize, RequestOptions, ReplyBuffer, ReplySize, Timeout);
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SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
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return 0;
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}
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/***********************************************************************
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* IcmpCreateFile (IPHLPAPI.@)
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*/
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HANDLE WINAPI IcmpCreateFile(VOID)
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{
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icmp_t* icp;
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int sid=socket(AF_INET,SOCK_RAW,IPPROTO_ICMP);
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if (sid < 0)
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{
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/* Some systems (e.g. Linux 3.0+ and Mac OS X) support
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non-privileged ICMP via SOCK_DGRAM type. */
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sid=socket(AF_INET,SOCK_DGRAM,IPPROTO_ICMP);
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}
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if (sid < 0) {
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ERR_(winediag)("Failed to use ICMP (network ping), this requires special permissions.\n");
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SetLastError(ERROR_ACCESS_DENIED);
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return INVALID_HANDLE_VALUE;
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}
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icp=HeapAlloc(GetProcessHeap(), 0, sizeof(*icp));
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if (icp==NULL) {
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close(sid);
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SetLastError(IP_NO_RESOURCES);
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return INVALID_HANDLE_VALUE;
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}
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icp->sid=sid;
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icp->default_opts.OptionsSize=IP_OPTS_UNKNOWN;
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return (HANDLE)icp;
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}
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/***********************************************************************
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* IcmpCloseHandle (IPHLPAPI.@)
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*/
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BOOL WINAPI IcmpCloseHandle(HANDLE IcmpHandle)
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{
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icmp_t* icp=(icmp_t*)IcmpHandle;
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if (IcmpHandle==INVALID_HANDLE_VALUE) {
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/* FIXME: in fact win98 seems to ignore the handle value !!! */
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SetLastError(ERROR_INVALID_HANDLE);
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return FALSE;
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}
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close( icp->sid );
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HeapFree(GetProcessHeap (), 0, icp);
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return TRUE;
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}
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/***********************************************************************
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* IcmpSendEcho (IPHLPAPI.@)
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*/
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DWORD WINAPI IcmpSendEcho(
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HANDLE IcmpHandle,
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IPAddr DestinationAddress,
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LPVOID RequestData,
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WORD RequestSize,
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PIP_OPTION_INFORMATION RequestOptions,
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LPVOID ReplyBuffer,
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DWORD ReplySize,
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DWORD Timeout
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)
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{
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return IcmpSendEcho2Ex(IcmpHandle, NULL, NULL, NULL, 0, DestinationAddress,
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RequestData, RequestSize, RequestOptions, ReplyBuffer, ReplySize, Timeout);
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}
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/***********************************************************************
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* IcmpSendEcho2 (IPHLPAPI.@)
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*/
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DWORD WINAPI IcmpSendEcho2(
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HANDLE IcmpHandle,
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HANDLE Event,
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PIO_APC_ROUTINE ApcRoutine,
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PVOID ApcContext,
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IPAddr DestinationAddress,
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|
LPVOID RequestData,
|
|
WORD RequestSize,
|
|
PIP_OPTION_INFORMATION RequestOptions,
|
|
LPVOID ReplyBuffer,
|
|
DWORD ReplySize,
|
|
DWORD Timeout
|
|
)
|
|
{
|
|
return IcmpSendEcho2Ex(IcmpHandle, Event, ApcRoutine, ApcContext, 0,
|
|
DestinationAddress, RequestData, RequestSize, RequestOptions,
|
|
ReplyBuffer, ReplySize, Timeout);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* IcmpSendEcho2Ex (IPHLPAPI.@)
|
|
*/
|
|
DWORD WINAPI IcmpSendEcho2Ex(
|
|
HANDLE IcmpHandle,
|
|
HANDLE Event,
|
|
PIO_APC_ROUTINE ApcRoutine,
|
|
PVOID ApcContext,
|
|
IPAddr SourceAddress,
|
|
IPAddr DestinationAddress,
|
|
LPVOID RequestData,
|
|
WORD RequestSize,
|
|
PIP_OPTION_INFORMATION RequestOptions,
|
|
LPVOID ReplyBuffer,
|
|
DWORD ReplySize,
|
|
DWORD Timeout
|
|
)
|
|
{
|
|
icmp_t* icp=(icmp_t*)IcmpHandle;
|
|
struct icmp* icmp_header;
|
|
struct sockaddr_in addr;
|
|
unsigned short id, seq;
|
|
unsigned char *buffer;
|
|
int reqsize, repsize;
|
|
DWORD send_time;
|
|
|
|
TRACE("(%p, %p, %p, %p, %08x, %08x, %p, %d, %p, %p, %d, %d)\n", IcmpHandle,
|
|
Event, ApcRoutine, ApcContext, SourceAddress, DestinationAddress, RequestData,
|
|
RequestSize, RequestOptions, ReplyBuffer, ReplySize, Timeout);
|
|
|
|
if (IcmpHandle==INVALID_HANDLE_VALUE) {
|
|
/* FIXME: in fact win98 seems to ignore the handle value !!! */
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return 0;
|
|
}
|
|
|
|
if (!ReplyBuffer||!ReplySize) {
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return 0;
|
|
}
|
|
|
|
if (ReplySize<sizeof(ICMP_ECHO_REPLY)) {
|
|
SetLastError(IP_BUF_TOO_SMALL);
|
|
return 0;
|
|
}
|
|
/* check the request size against SO_MAX_MSG_SIZE using getsockopt */
|
|
|
|
if (!DestinationAddress) {
|
|
SetLastError(ERROR_INVALID_NETNAME);
|
|
return 0;
|
|
}
|
|
|
|
if (Event)
|
|
{
|
|
FIXME("unsupported for events\n");
|
|
return 0;
|
|
}
|
|
if (ApcRoutine)
|
|
{
|
|
FIXME("unsupported for APCs\n");
|
|
return 0;
|
|
}
|
|
if (SourceAddress)
|
|
{
|
|
FIXME("unsupported for source addresses\n");
|
|
return 0;
|
|
}
|
|
|
|
/* Prepare the request */
|
|
id=getpid() & 0xFFFF;
|
|
seq=InterlockedIncrement(&icmp_sequence) & 0xFFFF;
|
|
|
|
reqsize=ICMP_MINLEN+RequestSize;
|
|
/* max ip header + max icmp header and error data + reply size(max 65535 on Windows) */
|
|
/* FIXME: request size of 65535 is not supported yet because max buffer size of raw socket on linux is 32767 */
|
|
repsize = MAXIPLEN + MAXICMPLEN + min( 65535, ReplySize );
|
|
buffer = HeapAlloc(GetProcessHeap(), 0, max( repsize, reqsize ));
|
|
if (buffer == NULL) {
|
|
SetLastError(ERROR_OUTOFMEMORY);
|
|
return 0;
|
|
}
|
|
|
|
icmp_header=(struct icmp*)buffer;
|
|
icmp_header->icmp_type=ICMP_ECHO;
|
|
icmp_header->icmp_code=0;
|
|
icmp_header->icmp_cksum=0;
|
|
icmp_header->icmp_id=id;
|
|
icmp_header->icmp_seq=seq;
|
|
memcpy(buffer+ICMP_MINLEN, RequestData, RequestSize);
|
|
icmp_header->icmp_cksum=in_cksum((u_short*)buffer,reqsize);
|
|
|
|
addr.sin_family=AF_INET;
|
|
addr.sin_addr.s_addr=DestinationAddress;
|
|
addr.sin_port=0;
|
|
|
|
if (RequestOptions!=NULL) {
|
|
int val;
|
|
if (icp->default_opts.OptionsSize==IP_OPTS_UNKNOWN) {
|
|
socklen_t len;
|
|
/* Before we mess with the options, get the default values */
|
|
len=sizeof(val);
|
|
getsockopt(icp->sid,IPPROTO_IP,IP_TTL,(char *)&val,&len);
|
|
icp->default_opts.Ttl=val;
|
|
|
|
len=sizeof(val);
|
|
getsockopt(icp->sid,IPPROTO_IP,IP_TOS,(char *)&val,&len);
|
|
icp->default_opts.Tos=val;
|
|
/* FIXME: missing: handling of IP 'flags', and all the other options */
|
|
}
|
|
|
|
val=RequestOptions->Ttl;
|
|
setsockopt(icp->sid,IPPROTO_IP,IP_TTL,(char *)&val,sizeof(val));
|
|
val=RequestOptions->Tos;
|
|
setsockopt(icp->sid,IPPROTO_IP,IP_TOS,(char *)&val,sizeof(val));
|
|
/* FIXME: missing: handling of IP 'flags', and all the other options */
|
|
|
|
icp->default_opts.OptionsSize=IP_OPTS_CUSTOM;
|
|
} else if (icp->default_opts.OptionsSize==IP_OPTS_CUSTOM) {
|
|
int val;
|
|
|
|
/* Restore the default options */
|
|
val=icp->default_opts.Ttl;
|
|
setsockopt(icp->sid,IPPROTO_IP,IP_TTL,(char *)&val,sizeof(val));
|
|
val=icp->default_opts.Tos;
|
|
setsockopt(icp->sid,IPPROTO_IP,IP_TOS,(char *)&val,sizeof(val));
|
|
/* FIXME: missing: handling of IP 'flags', and all the other options */
|
|
|
|
icp->default_opts.OptionsSize=IP_OPTS_DEFAULT;
|
|
}
|
|
|
|
/* Send the packet */
|
|
TRACE("Sending %d bytes (RequestSize=%d) to %s\n", reqsize, RequestSize, inet_ntoa(addr.sin_addr));
|
|
#if 0
|
|
if (TRACE_ON(icmp)){
|
|
int i;
|
|
printf("Output buffer:\n");
|
|
for (i=0;i<reqsize;i++)
|
|
printf("%2x,", buffer[i]);
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
|
|
send_time = GetTickCount();
|
|
if (sendto(icp->sid, buffer, reqsize, 0, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
|
|
if (errno==EMSGSIZE)
|
|
SetLastError(IP_PACKET_TOO_BIG);
|
|
else {
|
|
switch (errno) {
|
|
case ENETUNREACH:
|
|
SetLastError(IP_DEST_NET_UNREACHABLE);
|
|
break;
|
|
case EHOSTUNREACH:
|
|
SetLastError(IP_DEST_HOST_UNREACHABLE);
|
|
break;
|
|
default:
|
|
TRACE("unknown error: errno=%d\n",errno);
|
|
SetLastError(IP_GENERAL_FAILURE);
|
|
}
|
|
}
|
|
HeapFree(GetProcessHeap(), 0, buffer);
|
|
return 0;
|
|
}
|
|
|
|
return icmp_get_reply(icp->sid, buffer, send_time, ReplyBuffer, ReplySize, Timeout);
|
|
}
|
|
|
|
/*
|
|
* Copyright (c) 1989 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Mike Muuss.
|
|
*
|
|
* 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 University 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 REGENTS 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 REGENTS 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.
|
|
*
|
|
*/
|