2 * Macintosh OpenTransport networking abstraction
5 #if TARGET_API_MAC_CARBON
6 #define OTCARBONAPPLICATION 1
9 #include <Files.h> /* Needed by OpenTransportInternet.h */
10 #include <OpenTransport.h>
11 #include <OpenTptInternet.h>
15 #define DEFINE_PLUG_METHOD_MACROS
21 struct socket_function_table
*fn
;
30 int frozen
; /* this causes readability notifications to be ignored */
31 int frozen_readable
; /* this means we missed at least one readability
32 * notification while we were frozen */
33 int localhost_only
; /* for listening sockets */
36 int oobpending
; /* is there OOB data available to read?*/
38 int pending_error
; /* in case send() returns error */
40 struct Socket_tag
*next
;
41 struct Socket_tag
**prev
;
44 typedef struct Socket_tag
*Actual_Socket
;
49 InetHostInfo hostinfo
;
56 Actual_Socket socklist
;
64 err
= InitOpenTransport();
65 if (err
!= kOTNoError
) return err
;
66 ot
.inetsvc
= OTOpenInternetServices(kDefaultInternetServicesPath
, 0, &err
);
74 for (s
= ot
.socklist
; s
!=NULL
; s
= s
->next
) {
76 OTCloseProvider(s
->ep
);
82 SockAddr
ot_namelookup(char const *host
, char **canonicalname
)
84 SockAddr ret
= smalloc(sizeof(struct SockAddr_tag
));
87 /* Casting away const -- hope OTInetStringToAddress is sensible */
88 ret
->error
= OTInetStringToAddress(ot
.inetsvc
, (char *)host
,
92 if (ret
->error
== kOTNoError
)
93 realhost
= ret
->hostinfo
.name
;
96 *canonicalname
= smalloc(1+strlen(realhost
));
97 strcpy(*canonicalname
, realhost
);
101 SockAddr
ot_nonamelookup(char const *host
)
103 SockAddr ret
= smalloc(sizeof(struct SockAddr_tag
));
105 ret
->resolved
= FALSE
;
106 ret
->error
= kOTNoError
;
107 ret
->hostname
[0] = '\0';
108 strncat(ret
->hostname
, host
, lenof(ret
->hostname
) - 1);
112 void ot_getaddr(SockAddr addr
, char *buf
, int buflen
)
117 if (addr
->resolved
) {
118 /* XXX only return first address */
119 OTInetHostToString(addr
->hostinfo
.addrs
[0], mybuf
);
120 strncat(buf
, mybuf
, buflen
- 1);
122 strncat(buf
, addr
->hostname
, buflen
- 1);
125 /* I think "local" here really means "loopback" */
127 int ot_hostname_is_local(char *name
)
130 return !strcmp(name
, "localhost");
133 int ot_address_is_local(SockAddr addr
)
138 for (i
= 0; i
< kMaxHostAddrs
; i
++)
139 if (addr
->hostinfo
.addrs
[i
] & 0xff000000 == 0x7f000000)
144 int ot_addrtype(SockAddr addr
)
148 return ADDRTYPE_IPV4
;
149 return ADDRTYPE_NAME
;
152 void ot_addrcopy(SockAddr addr
, char *buf
)
155 /* XXX only return first address */
156 memcpy(buf
, &addr
->hostinfo
.addrs
[0], 4);
159 void ot_addr_free(SockAddr addr
)
165 static Plug
ot_tcp_plug(Socket sock
, Plug p
)
167 Actual_Socket s
= (Actual_Socket
) sock
;
174 static void ot_tcp_flush(Socket s
)
177 * We send data to the socket as soon as we can anyway,
178 * so we don't need to do anything here. :-)
182 static void ot_tcp_close(Socket s
);
183 static int ot_tcp_write(Socket s
, char const *data
, int len
);
184 static int ot_tcp_write_oob(Socket s
, char const *data
, int len
);
185 static void ot_tcp_set_private_ptr(Socket s
, void *ptr
);
186 static void *ot_tcp_get_private_ptr(Socket s
);
187 static void ot_tcp_set_frozen(Socket s
, int is_frozen
);
188 static char *ot_tcp_socket_error(Socket s
);
189 static void ot_recv(Actual_Socket s
);
192 Socket
ot_register(void *sock
, Plug plug
)
194 static struct socket_function_table fn_table
= {
200 ot_tcp_set_private_ptr
,
201 ot_tcp_get_private_ptr
,
208 ret
= smalloc(sizeof(struct Socket_tag
));
210 ret
->error
= kOTNoError
;
212 bufchain_init(&ret
->output_data
);
213 ret
->writable
= 1; /* to start with */
214 ret
->sending_oob
= 0;
216 ret
->frozen_readable
= 0;
217 ret
->localhost_only
= 0; /* unused, but best init anyway */
218 ret
->pending_error
= 0;
219 ret
->oobpending
= FALSE
;
222 ret
->ep
= (EndpointRef
)sock
;
224 /* some sort of error checking */
228 /* Add this to the list of all sockets */
229 ret
->next
= ot
.socklist
;
230 ret
->prev
= &ot
.socklist
;
236 Socket
ot_new(SockAddr addr
, int port
, int privport
, int oobinline
,
237 int nodelay
, Plug plug
)
239 static struct socket_function_table fn_table
= {
245 ot_tcp_set_private_ptr
,
246 ot_tcp_get_private_ptr
,
257 ret
= smalloc(sizeof(struct Socket_tag
));
259 ret
->error
= kOTNoError
;
261 bufchain_init(&ret
->output_data
);
262 ret
->connected
= 0; /* to start with */
263 ret
->writable
= 0; /* to start with */
264 ret
->sending_oob
= 0;
266 ret
->frozen_readable
= 0;
267 ret
->localhost_only
= 0; /* unused, but best init anyway */
268 ret
->pending_error
= 0;
269 ret
->oobinline
= oobinline
;
270 ret
->oobpending
= FALSE
;
273 /* Open Endpoint, configure it for TCP over anything */
275 ep
= OTOpenEndpoint(OTCreateConfiguration("tcp"), 0, NULL
, &err
);
284 /* TODO: oobinline, nodelay */
287 * Bind to local address.
290 /* FIXME: pay attention to privport */
292 err
= OTBind(ep
, NULL
, NULL
); /* OpenTransport always picks our address */
300 * Connect to remote address.
303 /* XXX Try non-primary addresses */
304 OTInitInetAddress(&dest
, port
, addr
->hostinfo
.addrs
[0]);
306 memset(&connectCall
, 0, sizeof(TCall
));
307 connectCall
.addr
.buf
= (UInt8
*) &dest
;
308 connectCall
.addr
.len
= sizeof(dest
);
310 err
= OTConnect(ep
, &connectCall
, nil
);
320 /* Add this to the list of all sockets */
321 ret
->next
= ot
.socklist
;
322 ret
->prev
= &ot
.socklist
;
323 if (ret
->next
!= NULL
)
324 ret
->next
->prev
= &ret
->next
;
330 Socket
ot_newlistener(char *foobar
, int port
, Plug plug
, int local_host_only
)
337 static void ot_tcp_close(Socket sock
)
339 Actual_Socket s
= (Actual_Socket
) sock
;
341 OTCloseProvider(s
->ep
);
343 /* Unhitch from list of sockets */
346 s
->next
->prev
= s
->prev
;
351 static void try_send(Actual_Socket s
)
353 while (bufchain_size(&s
->output_data
) > 0) {
358 /* Don't care about oob right now */
360 bufchain_prefix(&s
->output_data
, &data
, &len
);
362 nsent
= OTSnd(s
->ep
, data
, len
, 0);
363 noise_ultralight(nsent
);
366 /* something bad happened, hey ho */
368 /* still don't care about oob */
369 bufchain_consume(&s
->output_data
, nsent
);
374 static int ot_tcp_write(Socket sock
, char const *buf
, int len
)
376 Actual_Socket s
= (Actual_Socket
) sock
;
378 bufchain_add(&s
->output_data
, buf
, len
);
382 return bufchain_size(&s
->output_data
);
385 static int ot_tcp_write_oob(Socket sock
, char const *buf
, int len
)
387 /* Don't care about oob */
393 * Each socket abstraction contains a `void *' private field in
394 * which the client can keep state.
396 static void ot_tcp_set_private_ptr(Socket sock
, void *ptr
)
398 Actual_Socket s
= (Actual_Socket
) sock
;
399 s
->private_ptr
= ptr
;
402 static void *ot_tcp_get_private_ptr(Socket sock
)
404 Actual_Socket s
= (Actual_Socket
) sock
;
405 return s
->private_ptr
;
410 * Special error values are returned from ot_namelookup and ot_new
411 * if there's a problem. These functions extract an error message,
412 * or return NULL if there's no problem.
414 char *ot_addr_error(SockAddr addr
)
416 static char buf
[128];
418 if (addr
->error
== kOTNoError
)
420 sprintf(buf
, "error %d", addr
->error
);
423 static char *ot_tcp_socket_error(Socket sock
)
425 Actual_Socket s
= (Actual_Socket
) sock
;
426 static char buf
[128];
428 if (s
->error
== kOTNoError
)
430 sprintf(buf
, "error %d", s
->error
);
434 static void ot_tcp_set_frozen(Socket sock
, int is_frozen
)
436 Actual_Socket s
= (Actual_Socket
) sock
;
438 if (s
->frozen
== is_frozen
)
440 s
->frozen
= is_frozen
;
444 * Poll all our sockets from an event loop
452 for (s
= ot
.socklist
; s
!= NULL
; s
= s
->next
) {
456 case T_DATA
: /* Normal Data */
459 case T_EXDATA
: /* Expedited Data (urgent?) */
466 void ot_recv(Actual_Socket s
)
472 if (s
->frozen
) return;
475 o
= OTRcv(s
->ep
, buf
, sizeof(buf
), &flags
);
477 plug_receive(s
->plug
, 0, buf
, o
);
478 if (o
< 0 && o
!= kOTNoDataErr
)
479 plug_closing(s
->plug
, NULL
, 0, 0); /* XXX Error msg */
486 * c-file-style: "simon"