mirror of
git://xwords.git.sourceforge.net/gitroot/xwords/xwords
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301 lines
8.6 KiB
C
301 lines
8.6 KiB
C
/* -*- compile-command: "make rq"; -*- */
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/*
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* Copyright 2010 by Eric House (xwords@eehouse.org). All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <string.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <errno.h>
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#include <assert.h>
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#include "xwrelay.h"
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#ifndef DEFAULT_PORT
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# define DEFAULT_PORT 10998
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#endif
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#ifndef DEFAULT_HOST
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# define DEFAULT_HOST "localhost"
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#endif
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#define MAX_CONN_NAMES 128
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/*
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* Query:
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* list of all public games by language and number of players
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*
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* For debugging (localhost only, maybe)
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* count of all games in-play (cid!=null)
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*/
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static void
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usage( const char * const argv0 )
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{
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fprintf( stderr, "usage: %s \\\n", argv0 );
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fprintf( stderr, "\t[-p <port>] # (default %d)\\\n", DEFAULT_PORT );
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fprintf( stderr, "\t[-a <host>] # (default: %s)\\\n", DEFAULT_HOST );
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fprintf( stderr, "\t -r # list open public rooms\\\n" );
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fprintf( stderr, "\t[-l <n>] # language for rooms "
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"(1=English default)\\\n" );
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fprintf( stderr, "\t[-n <n>] # number of players (2 default)\\\n" );
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fprintf( stderr, "\t[-m <connName:devid> # list msg count\\\n" );
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fprintf( stderr, "\t[-d <connName:devid/seed> # delete game \\\n" );
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exit( 1 );
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}
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int
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read_packet( int sock, unsigned char* buf, int buflen )
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{
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int result = -1;
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ssize_t nread;
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unsigned short msgLen;
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nread = recv( sock, &msgLen, sizeof(msgLen), MSG_WAITALL );
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if ( nread == sizeof(msgLen) ) {
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msgLen = ntohs( msgLen );
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if ( msgLen <= buflen ) {
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nread = recv( sock, buf, msgLen, MSG_WAITALL );
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if ( nread == msgLen ) {
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result = nread;
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}
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}
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}
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return result;
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}
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static void
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do_rooms( int sockfd, int lang, int nPlayers )
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{
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unsigned char msg[] = { 0, /* protocol */
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PRX_PUB_ROOMS,
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lang,
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nPlayers };
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unsigned short len = htons( sizeof(msg) );
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write( sockfd, &len, sizeof(len) );
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write( sockfd, msg, sizeof(msg) );
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fprintf( stderr, "Waiting for response....\n" );
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ssize_t nRead = recv( sockfd, &len,
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sizeof(len), MSG_WAITALL );
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assert( nRead == sizeof(len) );
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len = ntohs( len );
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char reply[len];
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nRead = recv( sockfd, reply, len, MSG_WAITALL );
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assert( nRead == len );
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char* ptr = reply;
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unsigned short nRooms;
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memcpy( &nRooms, ptr, sizeof(nRooms) );
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ptr += sizeof( nRooms );
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nRooms = ntohs( nRooms );
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int ii;
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char* saveptr;
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for ( ii = 0; ii < nRooms; ++ii ) {
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char* str = strtok_r( ptr, "\n", &saveptr );
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fprintf( stdout, "%s\n", str );
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ptr = NULL;
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}
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}
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static void
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do_msgs( int sockfd, const char** connNames, int nConnNames )
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{
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unsigned short len, netlen;
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int ii;
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for ( len = 0, ii = 0; ii < nConnNames; ++ii ) {
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len += 1 + strlen( connNames[ii] );
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}
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unsigned char hdr[] = { 0, PRX_HAS_MSGS };
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unsigned short netNConnNames = htons( nConnNames );
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netlen = sizeof(hdr) + sizeof( netNConnNames ) + len;
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netlen = htons( netlen );
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write( sockfd, &netlen, sizeof(netlen) );
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write( sockfd, &hdr, sizeof(hdr) );
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write( sockfd, &netNConnNames, sizeof(netNConnNames) );
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for ( len = 0, ii = 0; ii < nConnNames; ++ii ) {
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write( sockfd, connNames[ii], strlen(connNames[ii]) );
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write( sockfd, "\n", 1 );
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}
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fprintf( stderr, "Waiting for response....\n" );
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unsigned char reply[1024];
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int nRead = read_packet( sockfd, reply, sizeof(reply) );
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if ( nRead > 2 ) {
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const unsigned char* bufp = reply;
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const unsigned char* const end = bufp + nRead;
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unsigned short count;
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memcpy( &count, bufp, sizeof( count ) );
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bufp += sizeof( count );
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count = ntohs( count );
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assert( count == nConnNames );
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fprintf( stderr, "got count: %d\n", count );
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int ii;
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for ( ii = 0; ii < nConnNames && bufp < end; ++ii ) {
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memcpy( &count, bufp, sizeof( count ) );
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bufp += sizeof( count );
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count = ntohs( count );
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fprintf( stdout, "%s -- %d\n", connNames[ii], count );
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}
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}
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} /* do_msgs */
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static void
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do_deletes( int sockfd, const char** connNames, int nConnNames )
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{
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fprintf( stderr, "%s()\n", __func__ );
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int ii;
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char buf[4096];
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int nused = 0;
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for ( ii = 0; ii < nConnNames; ++ii ) {
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char tmp[32];
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strcpy( tmp, connNames[ii] );
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char* seedp = strrchr( tmp, '/' );
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assert( !!seedp );
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*(seedp++) = '\0'; /* skip */
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unsigned int seed;
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sscanf( seedp, "%X", &seed );
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fprintf( stderr, "read %s to %x\n", seedp, seed );
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short netshort = htons( (short)seed );
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memcpy( &buf[nused], &netshort, sizeof(netshort) );
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nused += sizeof(netshort);
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nused += sprintf( &buf[nused], "%s", tmp );
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buf[nused++] = '\n';
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}
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unsigned char hdr[] = { 0, PRX_DEVICE_GONE };
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/* total len */
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short num = htons( sizeof(hdr) + 2 + nused );
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write( sockfd, &num, sizeof(num) );
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/* header */
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write( sockfd, hdr, sizeof(hdr) );
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/* count */
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num = htons( nConnNames );
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write( sockfd, &num, sizeof(num) );
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/* buffer */
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write( sockfd, buf, nused );
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unsigned char reply[2];
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int nRead = read_packet( sockfd, reply, sizeof(reply) );
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fprintf( stderr, "read %d back\n", nRead );
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assert( nRead == 0 );
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}
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int
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main( int argc, char * const argv[] )
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{
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int port = DEFAULT_PORT;
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int lang = 1;
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int nPlayers = 2;
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bool doRooms = false;
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bool doMgs = false;
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bool doDeletes = false;
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const char* host = DEFAULT_HOST;
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char const* connNames[MAX_CONN_NAMES];
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int nConnNames = 0;
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for ( ; ; ) {
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int opt = getopt( argc, argv, "a:d:p:rl:n:m:" );
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if ( opt < 0 ) {
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break;
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}
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switch ( opt ) {
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case 'a':
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host = optarg;
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break;
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case 'd':
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if ( doMgs ) {
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fprintf( stderr, "can't mix -d and -m\n" );
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usage( argv[0] );
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}
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assert( nConnNames < MAX_CONN_NAMES - 1 );
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connNames[nConnNames++] = optarg;
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doDeletes = true;
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break;
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case 'l':
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lang = atoi(optarg);
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break;
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case 'm':
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if ( doDeletes ) {
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fprintf( stderr, "can't mix -d and -m\n" );
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usage( argv[0] );
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}
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assert( nConnNames < MAX_CONN_NAMES - 1 );
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connNames[nConnNames++] = optarg;
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doMgs = true;
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break;
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case 'n':
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nPlayers = atoi(optarg);
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break;
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case 'p':
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port = atoi(optarg);
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break;
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case 'r':
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doRooms = true;
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break;
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default:
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usage( argv[0] );
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break;
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}
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}
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fprintf( stderr, "got port %d, host %s\n", port, host );
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int sockfd = socket( AF_INET, SOCK_STREAM, 0 );
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struct sockaddr_in to_sock;
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memset( &to_sock, 0, sizeof(to_sock) );
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to_sock.sin_family = AF_INET;
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to_sock.sin_port = htons( port );
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struct hostent* hostip;
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hostip = gethostbyname( host );
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memcpy( &(to_sock.sin_addr.s_addr), hostip->h_addr_list[0],
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sizeof(hostip->h_addr_list[0] ) );
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if ( 0 != connect( sockfd, (const struct sockaddr*)&to_sock,
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sizeof(to_sock) ) ) {
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fprintf( stderr, "connect failed: %d (%s)\n", errno, strerror(errno) );
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exit( 1 );
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}
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if ( doRooms ) {
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do_rooms( sockfd, lang, nPlayers );
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}
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if ( doMgs ) {
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do_msgs( sockfd, connNames, nConnNames );
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}
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if ( doDeletes ) {
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do_deletes( sockfd, connNames, nConnNames );
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}
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close( sockfd );
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return 0;
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}
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