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/*
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* Copyright (C) 1999 Ross Combs (rocombs@cs.nmsu.edu)
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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 "common/setup_before.h"
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#include <stdio.h>
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#ifdef HAVE_STDDEF_H
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# include <stddef.h>
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#else
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# ifndef NULL
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# define NULL ((void *)0)
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# endif
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#endif
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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#endif
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#include "compat/exitstatus.h"
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#ifdef HAVE_STRING_H
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# include <string.h>
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#else
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# ifdef HAVE_STRINGS_H
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# include <strings.h>
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# endif
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#endif
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#ifdef HAVE_MEMORY_H
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# include <memory.h>
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#endif
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#include "compat/memset.h"
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#include "compat/memcpy.h"
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#include <ctype.h>
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#include <errno.h>
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#include "compat/strerror.h"
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#ifdef TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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#else
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# ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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# else
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# include <time.h>
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# endif
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#endif
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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_FCNTL_H
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# include <fcntl.h>
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#else
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# ifdef HAVE_SYS_FILE_H
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# include <sys/file.h>
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# endif
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#endif
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#ifdef HAVE_TERMIOS_H
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# include <termios.h>
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#endif
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#include "compat/termios.h"
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_SELECT_H
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# include <sys/select.h>
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#endif
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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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#include "compat/socket.h"
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#include "compat/send.h"
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#ifdef HAVE_SYS_PARAM_H
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# include <sys/param.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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#include "compat/netinet_in.h"
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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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#include "compat/inet_ntoa.h"
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#ifdef HAVE_NETDB_H
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# include <netdb.h>
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#endif
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#include "compat/psock.h"
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#include "common/packet.h"
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#include "common/init_protocol.h"
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#include "common/bot_protocol.h"
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#include "common/bn_type.h"
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#include "common/field_sizes.h"
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#include "common/network.h"
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#include "common/version.h"
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#include "common/util.h"
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#ifdef CLIENTDEBUG
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# include "common/eventlog.h"
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#endif
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#include "client.h"
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#include "common/setup_after.h"
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static void usage(char const * progname);
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static void usage(char const * progname)
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{
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fprintf(stderr,"usage: %s [<options>] [<servername> [<TCP portnumber>]]\n"
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" -h, --help, --usage show this information and exit\n"
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" -v, --version print version number and exit\n",
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progname);
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exit(STATUS_FAILURE);
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}
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extern int main(int argc, char * argv[])
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{
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int a;
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int sd;
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struct sockaddr_in saddr;
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t_packet * packet;
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t_packet * rpacket;
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char const * servname=NULL;
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unsigned short servport=0;
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char text[MAX_MESSAGE_LEN];
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struct hostent * host;
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unsigned int commpos;
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struct termios in_attr_old;
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struct termios in_attr_new;
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int changed_in;
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unsigned int currsize;
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int fd_stdin;
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unsigned int screen_width,screen_height;
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if (argc<1 || !argv || !argv[0])
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{
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fprintf(stderr,"bad arguments\n");
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return STATUS_FAILURE;
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}
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for (a=1; a<argc; a++)
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if (servname && isdigit((int)argv[a][0]) && a+1>=argc)
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{
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if (str_to_ushort(argv[a],&servport)<0)
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{
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fprintf(stderr,"%s: \"%s\" should be a positive integer\n",argv[0],argv[a]);
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usage(argv[0]);
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}
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}
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else if (!servname && argv[a][0]!='-' && a+2>=argc)
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servname = argv[a];
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else if (strcmp(argv[a],"-v")==0 || strcmp(argv[a],"--version")==0)
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{
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printf("version "PVPGN_VERSION"\n");
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return STATUS_SUCCESS;
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}
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else if (strcmp(argv[a],"-h")==0 || strcmp(argv[a],"--help")==0 || strcmp(argv[a],"--usage")==0)
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usage(argv[0]);
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else
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{
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fprintf(stderr,"%s: unknown option \"%s\"\n",argv[0],argv[a]);
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usage(argv[0]);
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}
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if (servport==0)
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servport = BNETD_SERV_PORT;
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if (!servname)
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servname = BNETD_DEFAULT_HOST;
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if (psock_init()<0)
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{
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fprintf(stderr,"%s: could not inialialize socket functions\n",argv[0]);
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return STATUS_FAILURE;
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}
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if (!(host = gethostbyname(servname)))
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{
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fprintf(stderr,"%s: unknown host \"%s\"\n",argv[0],servname);
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return STATUS_FAILURE;
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}
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fd_stdin = fileno(stdin);
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if (tcgetattr(fd_stdin,&in_attr_old)>=0)
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{
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in_attr_new = in_attr_old;
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in_attr_new.c_lflag &= ~(ECHO | ICANON); /* turn off ECHO and ICANON */
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in_attr_new.c_cc[VMIN] = 0; /* don't require reads to return data */
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in_attr_new.c_cc[VTIME] = 1; /* timeout = .1 second */
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tcsetattr(fd_stdin,TCSANOW,&in_attr_new);
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changed_in = 1;
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}
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else
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{
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fprintf(stderr,"%s: could not set terminal attributes for stdin\n",argv[0]);
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changed_in = 0;
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}
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if (client_get_termsize(fd_stdin,&screen_width,&screen_height)<0)
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{
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fprintf(stderr,"%s: could not determine screen size\n",argv[0]);
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if (changed_in)
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tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
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return STATUS_FAILURE;
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}
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if ((sd = psock_socket(PSOCK_PF_INET,PSOCK_SOCK_STREAM,PSOCK_IPPROTO_TCP))<0)
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{
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fprintf(stderr,"%s: could not create socket (psock_socket: %s)\n",argv[0],pstrerror(psock_errno()));
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if (changed_in)
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tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
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return STATUS_FAILURE;
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}
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memset(&saddr,0,sizeof(saddr));
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saddr.sin_family = PSOCK_AF_INET;
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saddr.sin_port = htons(servport);
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memcpy(&saddr.sin_addr.s_addr,host->h_addr_list[0],host->h_length);
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if (psock_connect(sd,(struct sockaddr *)&saddr,sizeof(saddr))<0)
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{
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fprintf(stderr,"%s: could not connect to server \"%s\" port %hu (psock_connect: %s)\n",argv[0],servname,servport,pstrerror(psock_errno()));
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if (changed_in)
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tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
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return STATUS_FAILURE;
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}
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if (psock_ctl(sd,PSOCK_NONBLOCK)<0)
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{
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fprintf(stderr,"%s: could not set TCP socket to non-blocking mode (psock_ctl: %s)\n",argv[0],pstrerror(psock_errno()));
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psock_close(sd);
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if (changed_in)
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tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
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return STATUS_FAILURE;
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}
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printf("Connected to %s:%hu.\n",inet_ntoa(saddr.sin_addr),servport);
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#ifdef CLIENTDEBUG
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eventlog_set(stderr);
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#endif
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if (!(packet = packet_create(packet_class_init)))
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{
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fprintf(stderr,"%s: could not create packet\n",argv[0]);
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if (changed_in)
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tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
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return STATUS_FAILURE;
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}
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bn_byte_set(&packet->u.client_initconn.class,CLIENT_INITCONN_CLASS_BOT);
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client_blocksend_packet(sd,packet);
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packet_del_ref(packet);
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if (!(rpacket = packet_create(packet_class_raw)))
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{
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fprintf(stderr,"%s: could not create packet\n",argv[0]);
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if (changed_in)
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tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
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return STATUS_FAILURE;
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}
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if (!(packet = packet_create(packet_class_raw)))
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{
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fprintf(stderr,"%s: could not create packet\n",argv[0]);
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if (changed_in)
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tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
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return STATUS_FAILURE;
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}
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packet_append_ntstring(packet,"\004");
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client_blocksend_packet(sd,packet);
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packet_del_ref(packet);
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{
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int highest_fd;
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t_psock_fd_set rfds;
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PSOCK_FD_ZERO(&rfds);
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highest_fd = fd_stdin;
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if (sd>highest_fd)
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highest_fd = sd;
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commpos = 0;
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text[0] = '\0';
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for (;;)
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{
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PSOCK_FD_SET(fd_stdin,&rfds);
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PSOCK_FD_SET(sd,&rfds);
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if (psock_select(highest_fd+1,&rfds,NULL,NULL,NULL)<0)
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{
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if (errno!=PSOCK_EINTR)
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fprintf(stderr,"%s: select failed (select: %s)\n",argv[0],pstrerror(errno));
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continue;
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}
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if (PSOCK_FD_ISSET(sd,&rfds)) /* got network data */
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{
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packet_set_size(rpacket,MAX_PACKET_SIZE-1);
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currsize = 0;
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if (net_recv_packet(sd,rpacket,&currsize)<0)
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{
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psock_close(sd);
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sd = -1;
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}
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if (currsize>0)
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{
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char * str=packet_get_raw_data(rpacket,0);
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str[currsize] = '\0';
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printf("%s",str);
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fflush(stdout);
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}
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if (sd==-1) /* if connection was closed */
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{
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printf("Connection closed by server.\n");
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if (changed_in)
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tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
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packet_del_ref(rpacket);
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return STATUS_SUCCESS;
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}
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}
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if (PSOCK_FD_ISSET(fd_stdin,&rfds)) /* got keyboard data */
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{
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switch (client_get_comm("",text,sizeof(text),&commpos,-1,0,screen_width))
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{
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case -1: /* cancel */
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if (changed_in)
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tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
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return STATUS_FAILURE;
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case 0: /* timeout */
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break;
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case 1:
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if (!(packet = packet_create(packet_class_raw)))
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{
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fprintf(stderr,"%s: could not create packet\n",argv[0]);
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if (changed_in)
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tcsetattr(fd_stdin,TCSAFLUSH,&in_attr_old);
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packet_del_ref(rpacket);
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return STATUS_FAILURE;
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}
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packet_append_ntstring(packet,text);
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packet_append_ntstring(packet,"\r\n");
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client_blocksend_packet(sd,packet);
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packet_del_ref(packet);
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commpos = 0;
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text[0] = '\0';
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}
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}
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}
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}
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/* not reached */
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}
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