2 * WINGs connect.c: example how to create a network client using WMConnection
4 * Copyright (c) 1999-2003 Dan Pascu
14 #include <WINGs/WINGs.h>
18 static int initialized
= 0;
22 static void didReceiveInput(ConnectionDelegate
*self
, WMConnection
*cPtr
);
24 static void connectionDidDie(ConnectionDelegate
*self
, WMConnection
*cPtr
);
26 static void didInitialize(ConnectionDelegate
*self
, WMConnection
*cPtr
);
30 static ConnectionDelegate socketDelegate
= {
32 NULL
, /* canResumeSending */
33 NULL
, /* didCatchException */
34 connectionDidDie
, /* didDie */
35 didInitialize
, /* didInitialize */
36 didReceiveInput
, /* didReceiveInput */
50 getMessage(WMConnection
*cPtr
)
56 aData
= WMGetConnectionAvailableData(cPtr
);
59 if ((length
=WMGetDataLength(aData
))==0) {
64 buffer
= (char*)wmalloc(length
+1);
65 WMGetDataBytes(aData
, buffer
);
74 inputHandler(int fd
, int mask
, void *clientData
)
76 WMConnection
*cPtr
= (WMConnection
*)clientData
;
84 n
= read(fd
, buf
, 4096);
86 aData
= WMCreateDataWithBytes(buf
, n
);
87 WMSendConnectionData(cPtr
, aData
);
94 didReceiveInput(ConnectionDelegate
*self
, WMConnection
*cPtr
)
98 buffer
= getMessage(cPtr
);
100 fprintf(stderr
, "Connection closed by peer.\n");
104 printf("%s", buffer
);
111 connectionDidDie(ConnectionDelegate
*self
, WMConnection
*cPtr
)
113 WMCloseConnection(cPtr
);
115 fprintf(stderr
, "Connection closed by peer.\n");
121 didInitialize(ConnectionDelegate
*self
, WMConnection
*cPtr
)
123 int state
= WMGetConnectionState(cPtr
);
126 if (state
== WCConnected
) {
127 host
= WMGetHostWithAddress(WMGetConnectionAddress(cPtr
));
128 fprintf(stderr
, "connected to '%s:%s'\n",
129 host
?WMGetHostName(host
):WMGetConnectionAddress(cPtr
),
130 WMGetConnectionService(cPtr
));
136 wsyserrorwithcode(WCErrorCode
, "Unable to connect");
143 main(int argc
, char **argv
)
145 char *ProgName
, *host
, *port
;
151 WMInitializeApplication("connect", &argc
, argv
);
153 ProgName
= strrchr(argv
[0],'/');
163 for (i
=1; i
<argc
; i
++) {
164 if (strcmp(argv
[i
], "--help")==0 || strcmp(argv
[i
], "-h")==0) {
165 printf("usage: %s [host [port]]\n\n", ProgName
);
176 printf("Trying to make connection to '%s:%s'\n",
177 host
?host
:"localhost", port
);
179 sPtr
= WMCreateConnectionToAddressAndNotify(host
, port
, NULL
);
181 wfatal("could not create connection. exiting");
185 WMSetConnectionDelegate(sPtr
, &socketDelegate
);
187 /* watch what user types and send it over the connection */
188 WMAddInputHandler(0, WIReadMask
, inputHandler
, sPtr
);