project_files/frontlib/socket.c
author koda
Thu, 07 Mar 2013 10:16:21 +0100
changeset 8687 5b6ad1bd6ace
parent 8091 e0a76056a633
child 8094 6c5b4e69f03d
child 10017 de822cd3df3a
permissions -rw-r--r--
update option list
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
7314
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
     1
/*
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
     2
 * Hedgewars, a free turn based strategy game
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
     3
 * Copyright (C) 2012 Simeon Maxein <smaxein@googlemail.com>
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
     4
 *
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
     5
 * This program is free software; you can redistribute it and/or
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
     6
 * modify it under the terms of the GNU General Public License
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
     7
 * as published by the Free Software Foundation; either version 2
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
     8
 * of the License, or (at your option) any later version.
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
     9
 *
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
    10
 * This program is distributed in the hope that it will be useful,
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
    11
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
    12
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
    13
 * GNU General Public License for more details.
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
    14
 *
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
    15
 * You should have received a copy of the GNU General Public License
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
    16
 * along with this program; if not, write to the Free Software
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
    17
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
    18
 */
6171f0bad318 frontlib: Fixes and improvements. Added a GPLv2+ license header to all frontlib
Medo <smaxein@googlemail.com>
parents: 7271
diff changeset
    19
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    20
#include "socket.h"
7179
f84805e6df03 Implemented game launching API for the frontlib.
Medo <smaxein@googlemail.com>
parents: 7177
diff changeset
    21
#include "util/logging.h"
7224
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
    22
#include "util/util.h"
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    23
#include <stdlib.h>
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    24
#include <SDL_net.h>
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    25
#include <time.h>
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    26
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    27
struct _flib_tcpsocket {
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    28
	TCPsocket sock;
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    29
	SDLNet_SocketSet sockset;
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    30
};
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    31
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    32
struct _flib_acceptor {
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    33
	TCPsocket sock;
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    34
	uint16_t port;
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    35
};
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    36
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    37
static uint32_t getPeerIp(TCPsocket sock) {
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    38
	IPaddress *addr = SDLNet_TCP_GetPeerAddress(sock);
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    39
	return SDLNet_Read32(&addr->host);
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    40
}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    41
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    42
static bool connectionIsLocal(TCPsocket sock) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    43
	return getPeerIp(sock) == (uint32_t)((127UL<<24)+1); // 127.0.0.1
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    44
}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    45
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    46
static flib_tcpsocket *createSocket(TCPsocket sdlsock) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    47
	flib_tcpsocket *result = flib_calloc(1, sizeof(flib_tcpsocket));
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    48
	if(result) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    49
		result->sock = sdlsock;
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    50
		result->sockset = SDLNet_AllocSocketSet(1);
7175
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
    51
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    52
		if(!result->sockset) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    53
			flib_log_e("Can't allocate socket: Out of memory!");
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    54
			SDLNet_FreeSocketSet(result->sockset);
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    55
			free(result);
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    56
			result = NULL;
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    57
		} else {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    58
			SDLNet_AddSocket(result->sockset, (SDLNet_GenericSocket)result->sock);
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    59
		}
7175
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
    60
	}
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    61
	return result;
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    62
}
7175
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
    63
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    64
TCPsocket listen(uint16_t port) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    65
	IPaddress addr;
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    66
	addr.host = INADDR_ANY;
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    67
	SDLNet_Write16(port, &addr.port);
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    68
	TCPsocket sock = SDLNet_TCP_Open(&addr);
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    69
	if(!sock) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    70
		flib_log_w("Unable to listen on port %u: %s", (unsigned)port, SDLNet_GetError());
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    71
	}
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    72
	return sock;
7175
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
    73
}
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
    74
7224
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
    75
flib_acceptor *flib_acceptor_create(uint16_t port) {
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    76
	flib_acceptor *result = flib_calloc(1, sizeof(flib_acceptor));
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    77
	if(result) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    78
		if(port > 0) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    79
			result->port = port;
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    80
			result->sock = listen(result->port);
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    81
		} else {
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    82
			/* SDL_net does not seem to have a way to listen on a random unused port
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    83
			   and find out which port that is, so let's try to find one ourselves. */
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    84
			srand(time(NULL));
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    85
			for(int i=0; !result->sock && i<1000; i++) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    86
				// IANA suggests using ports in the range 49152-65535 for things like this
8091
e0a76056a633 Follow IANA suggestions better
unc0rr
parents: 7314
diff changeset
    87
				result->port = 49152+(rand()%(65536-49152));
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    88
				result->sock = listen(result->port);
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    89
			}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    90
		}
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    91
		if(!result->sock) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    92
			flib_log_e("Failed to create acceptor.");
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    93
			free(result);
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    94
			result = NULL;
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    95
		}
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    96
	}
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
    97
	return result;
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    98
}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
    99
7224
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
   100
uint16_t flib_acceptor_listenport(flib_acceptor *acceptor) {
7175
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   101
	if(!acceptor) {
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   102
		flib_log_e("Call to flib_acceptor_listenport with acceptor==null");
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   103
		return 0;
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   104
	}
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   105
	return acceptor->port;
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   106
}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   107
7224
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
   108
void flib_acceptor_close(flib_acceptor *acceptor) {
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
   109
	if(acceptor) {
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
   110
		SDLNet_TCP_Close(acceptor->sock);
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
   111
		free(acceptor);
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   112
	}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   113
}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   114
7224
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
   115
flib_tcpsocket *flib_socket_accept(flib_acceptor *acceptor, bool localOnly) {
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
   116
	flib_tcpsocket *result = NULL;
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   117
	if(!acceptor) {
7175
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   118
		flib_log_e("Call to flib_socket_accept with acceptor==null");
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
   119
	} else {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
   120
		TCPsocket sock = NULL;
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
   121
		while(!result && (sock = SDLNet_TCP_Accept(acceptor->sock))) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
   122
			if(localOnly && !connectionIsLocal(sock)) {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
   123
				flib_log_i("Rejected nonlocal connection attempt from %s", flib_format_ip(getPeerIp(sock)));
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
   124
			} else {
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
   125
				result = createSocket(sock);
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
   126
			}
7175
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   127
			if(!result) {
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   128
				SDLNet_TCP_Close(sock);
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   129
			}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   130
		}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   131
	}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   132
	return result;
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   133
}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   134
7234
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   135
flib_tcpsocket *flib_socket_connect(const char *host, uint16_t port) {
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   136
	flib_tcpsocket *result = NULL;
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   137
	if(!host || port==0) {
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   138
		flib_log_e("Invalid parameter in flib_socket_connect");
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   139
	} else {
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   140
		IPaddress ip;
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   141
		if(SDLNet_ResolveHost(&ip,host,port)==-1) {
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   142
		   flib_log_e("SDLNet_ResolveHost: %s\n", SDLNet_GetError());
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   143
		} else {
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   144
			TCPsocket sock=SDLNet_TCP_Open(&ip);
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   145
			if(!sock) {
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   146
				flib_log_e("SDLNet_TCP_Open: %s\n", SDLNet_GetError());
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   147
			} else {
7271
5608ac657362 frontlib: Intermittent commit. Things are still in flux but we're getting there :)
Medo <smaxein@googlemail.com>
parents: 7234
diff changeset
   148
				result = createSocket(sock);
7234
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   149
				if(result) {
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   150
					sock = NULL;
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   151
				}
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   152
			}
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   153
			SDLNet_TCP_Close(sock);
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   154
		}
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   155
	}
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   156
	return result;
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   157
}
613998625a3c frontlib: Started work on the server connection code
Medo <smaxein@googlemail.com>
parents: 7224
diff changeset
   158
7224
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
   159
void flib_socket_close(flib_tcpsocket *sock) {
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
   160
	if(sock) {
7175
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   161
		SDLNet_DelSocket(sock->sockset, (SDLNet_GenericSocket)sock->sock);
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   162
		SDLNet_TCP_Close(sock->sock);
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   163
		SDLNet_FreeSocketSet(sock->sockset);
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   164
		free(sock);
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   165
	}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   166
}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   167
7224
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
   168
int flib_socket_nbrecv(flib_tcpsocket *sock, void *data, int maxlen) {
7175
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   169
	if(!sock || (maxlen>0 && !data)) {
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   170
		flib_log_e("Call to flib_socket_nbrecv with sock==null or data==null");
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   171
		return -1;
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   172
	}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   173
	int readySockets = SDLNet_CheckSockets(sock->sockset, 0);
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   174
	if(readySockets>0) {
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   175
		int size = SDLNet_TCP_Recv(sock->sock, data, maxlen);
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   176
		return size>0 ? size : -1;
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   177
	} else if(readySockets==0) {
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   178
		return 0;
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   179
	} else {
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   180
		flib_log_e("Error in select system call: %s", SDLNet_GetError());
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   181
		return -1;
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   182
	}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   183
}
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   184
7224
5143861c83bd Cleanup, refactoring and generally more development in the frontlib
Medo <smaxein@googlemail.com>
parents: 7179
diff changeset
   185
int flib_socket_send(flib_tcpsocket *sock, const void *data, int len) {
7175
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   186
	if(!sock || (len>0 && !data)) {
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   187
		flib_log_e("Call to flib_socket_send with sock==null or data==null");
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   188
		return -1;
038e3415100a Added ini reading/writing for game schemes to the frontend lib
Medo <smaxein@googlemail.com>
parents: 7171
diff changeset
   189
	}
7171
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   190
	return SDLNet_TCP_Send(sock->sock, data, len);
906e72caea7b frontlib refactoring
Medo <smaxein@googlemail.com>
parents:
diff changeset
   191
}