Annotation of libwww/Library/src/HTTCP.c, revision 2.96
2.31 frystyk 1: /* HTTCP.c
2.83 frystyk 2: ** TCP SPECIFIC CODE
2.31 frystyk 3: **
2.42 frystyk 4: ** (c) COPYRIGHT MIT 1995.
2.31 frystyk 5: ** Please first read the full copyright statement in the file COPYRIGH.
2.96 ! eric 6: ** @(#) $Id: HTTCP.c,v 2.95 1996/11/30 23:31:53 frystyk Exp $
1.1 timbl 7: **
8: ** This code is in common between client and server sides.
9: **
10: ** 16 Jan 92 TBL Fix strtol() undefined on CMU Mach.
11: ** 25 Jun 92 JFG Added DECNET option through TCP socket emulation.
2.7 duns 12: ** 13 Sep 93 MD Added correct return of vmserrorno for HTInetStatus.
13: ** Added decoding of vms error message for MULTINET.
2.13 frystyk 14: ** 31 May 94 HF Added cache on host id's; now use inet_ntoa() to
15: ** HTInetString and some other fixes. Added HTDoConnect
16: ** and HTDoAccept
1.1 timbl 17: */
18:
2.36 frystyk 19: /* Library include files */
2.79 frystyk 20: #include "sysdep.h"
2.83 frystyk 21: #include "WWWUtil.h"
22: #include "WWWCore.h"
2.95 frystyk 23: #include "WWWMux.h"
2.83 frystyk 24:
2.58 frystyk 25: #include "HTReqMan.h"
2.54 frystyk 26: #include "HTNetMan.h"
2.36 frystyk 27: #include "HTTCP.h" /* Implemented here */
2.29 frystyk 28:
2.95 frystyk 29: #include "HTHstMan.h"
30:
2.36 frystyk 31: /* VMS stuff */
32: #ifdef VMS
33: #ifndef MULTINET
34: #define FD_SETSIZE 32
35: #else /* Multinet */
36: #define FD_SETSIZE 256
37: #endif /* Multinet */
38: #endif /* VMS */
39:
2.13 frystyk 40: /* Macros and other defines */
2.24 frystyk 41: /* x seconds penalty on a multi-homed host if IP-address is down */
42: #define TCP_PENALTY 1200
43:
44: /* x seconds penalty on a multi-homed host if IP-address is timed out */
45: #define TCP_DELAY 600
46:
2.93 eric 47: /* imperical study in socket call error codes
48: */
49: #ifdef _WINSOCKAPI_ /* windows */
50: #define NETCALL_ERROR(ret) (ret == SOCKET_ERROR)
51: #define NETCALL_DEADSOCKET(err) (err == WSAEBADF)
52: #define NETCALL_WOULDBLOCK(err) (err == WSAEWOULDBLOCK)
53: #else /* _WINSOCKAPI_ unix */
54: #define NETCALL_ERROR(ret) (ret < 0)
55: #define NETCALL_DEADSOCKET(err) (err == EBADF)
56: #if defined(EAGAIN) && defined(EALREADY)
57: #define NETCALL_WOULDBLOCK(err) (err == EINPROGRESS || \
58: err == EALREADY || \
59: err == EAGAIN)
60: #else /* (EAGAIN && EALREADY) */
61: #ifdef EALREADY
62: #define NETCALL_WOULDBLOCK(err) (err == EINPROGRESS || err == EALREADY)
63: #else /* EALREADY */
64: #ifdef EAGAIN
65: #define NETCALL_WOULDBLOCK(err) (err == EINPROGRESS || err == EAGAIN)
66: #else /* EAGAIN */
67: #define NETCALL_WOULDBLOCK(err) (err == EINPROGRESS)
68: #endif /* !EAGAIN */
69: #endif /* !EALREADY */
70: #endif /* !(EAGAIN && EALREADY) */
71: #endif /* !_WINSOCKAPI_ done */
2.13 frystyk 72: /* ------------------------------------------------------------------------- */
2.19 frystyk 73: /* CONNECTION ESTABLISHMENT MANAGEMENT */
74: /* ------------------------------------------------------------------------- */
2.13 frystyk 75:
2.95 frystyk 76: /* _makeSocket - create a socket, if !preemptive, set FIONBIO
2.93 eric 77: * returns 1: blocking
78: * 0: non-blocking
79: * -1: creation error
80: */
2.95 frystyk 81: PRIVATE int _makeSocket(HTHost * host, HTRequest * request, int preemptive, HTTransport * transport)
2.93 eric 82: {
2.95 frystyk 83: int status = 1;
84: SOCKET sockfd;
2.93 eric 85: #ifdef DECNET
2.95 frystyk 86: if ((sockfd=socket(AF_DECnet, SOCK_STREAM, 0))==INVSOC)
2.93 eric 87: #else
2.95 frystyk 88: if ((sockfd=socket(AF_INET, SOCK_STREAM,IPPROTO_TCP))==INVSOC)
2.93 eric 89: #endif
2.95 frystyk 90: {
91: HTRequest_addSystemError(request, ERR_FATAL, socerrno,
92: NO, "socket");
93: host->tcpstate = TCP_ERROR;
94: return -1;
95: }
96: if (PROT_TRACE) HTTrace(HTHIDE("Socket...... Created %d\n"), sockfd);
2.93 eric 97:
2.95 frystyk 98: /* Increase the number of sockets by one */
99: HTNet_increaseSocket();
2.93 eric 100:
2.95 frystyk 101: /* If non-blocking protocol then change socket status
102: ** I use fcntl() so that I can ask the status before I set it.
103: ** See W. Richard Stevens (Advan. Prog. in UNIX environment, p.364)
104: ** Be CAREFULL with the old `O_NDELAY' - it will not work as read()
105: ** returns 0 when blocking and NOT -1. FNDELAY is ONLY for BSD and
106: ** does NOT work on SVR4 systems. O_NONBLOCK is POSIX.
107: */
108: if (!preemptive) {
2.93 eric 109: #ifdef _WINSOCKAPI_
2.95 frystyk 110: { /* begin windows scope */
111: long levents = FD_READ | FD_WRITE | FD_ACCEPT |
112: FD_CONNECT | FD_CLOSE ;
113: int rv = 0 ;
114: u_long one = 1;
115:
116: status = ioctlsocket(sockfd, FIONBIO, &one) ==
117: SOCKET_ERROR ? -1 : 0;
118: } /* end scope */
2.93 eric 119: #else /* _WINSOCKAPI_ */
120: #if defined(VMS)
2.95 frystyk 121: {
122: int enable = 1;
123: status = IOCTL(sockfd, FIONBIO, &enable);
124: }
2.93 eric 125: #else /* VMS */
2.95 frystyk 126: if((status = fcntl(sockfd, F_GETFL, 0)) != -1) {
2.93 eric 127: #ifdef O_NONBLOCK
2.95 frystyk 128: status |= O_NONBLOCK; /* POSIX */
2.93 eric 129: #else /* O_NONBLOCK */
130: #ifdef F_NDELAY
131: status |= F_NDELAY; /* BSD */
132: #endif /* F_NDELAY */
133: #endif /* !O_NONBLOCK */
2.95 frystyk 134: status = fcntl(sockfd, F_SETFL, status);
135: }
2.93 eric 136: #endif /* !VMS */
137: #endif /* !_WINSOCKAPI_ */
2.95 frystyk 138: if (PROT_TRACE) HTTrace(HTHIDE("Socket...... %slocking socket\n"), status == -1 ? "B" : "Non-b");
139: } else
140: if (PROT_TRACE) HTTrace(HTHIDE("Socket...... Blocking socket\n"));
141:
142: /*
143: ** Associate the channel with the host and create an input and and output stream
144: ** for this host/channel
145: */
146: HTHost_setChannel(host, HTChannel_new(sockfd, YES));
147: HTHost_getInput(host, transport, NULL, 0);
148: HTHost_getOutput(host, transport, NULL, 1024);
2.93 eric 149:
150: return status == -1 ? 1 : 0;
151: }
152:
2.13 frystyk 153: /* HTDoConnect()
154: **
155: ** Note: Any port indication in URL, e.g., as `host:port' overwrites
2.54 frystyk 156: ** the default port value.
2.13 frystyk 157: **
2.40 frystyk 158: ** returns HT_ERROR Error has occured or interrupted
159: ** HT_OK if connected
160: ** HT_WOULD_BLOCK if operation would have blocked
2.13 frystyk 161: */
2.54 frystyk 162: PUBLIC int HTDoConnect (HTNet * net, char * url, u_short default_port)
2.13 frystyk 163: {
2.95 frystyk 164: HTHost * me = HTNet_host(net);
2.88 frystyk 165: HTRequest * request = HTNet_request(net);
2.95 frystyk 166: int preemptive = net->preemptive;
167: int retry = net->retry;
168:
169: int status = HT_OK;
170: char * hostname = HTHost_name(me);
2.13 frystyk 171:
2.55 frystyk 172: /* Jump into the state machine */
2.95 frystyk 173: if (!me)
174: goto tcp_begin;
2.55 frystyk 175: while (1) {
2.95 frystyk 176: switch (me->tcpstate) {
177: tcp_begin:
2.55 frystyk 178: case TCP_BEGIN:
2.91 frystyk 179: {
180: char * proxy = HTRequest_proxy(request);
2.95 frystyk 181: HTProtocol * protocol = HTNet_protocol(net);
2.91 frystyk 182:
183: /* Check to see whether we connect directly or via a proxy */
2.96 ! eric 184: if ((net->host = HTHost_newWParse(request, proxy ? proxy : url,
2.95 frystyk 185: HTProtocol_id(protocol))) == NULL)
186: return NO;
187: me = net->host;
2.91 frystyk 188:
189: /*
190: ** Add the net object to the host object found above. If the
191: ** host is idle then we can start the request right away,
192: ** otherwise we must wait until it is free.
193: */
2.95 frystyk 194: if (HTHost_addNet(net->host, net) == HT_PENDING)
2.91 frystyk 195: if (PROT_TRACE) HTTrace("HTDoConnect. Pending...\n");
196:
197: /*
2.95 frystyk 198: ** If we are pending then return here, otherwise go to next state
2.91 frystyk 199: ** which is setting up a channel
200: */
2.95 frystyk 201: me->tcpstate = TCP_CHANNEL;
202: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_CHANNEL.\n"), me);
2.91 frystyk 203: if (status == HT_PENDING) return HT_PENDING;
204: }
205: break;
2.83 frystyk 206:
2.91 frystyk 207: case TCP_CHANNEL:
2.83 frystyk 208: /*
2.91 frystyk 209: ** The next state depends on whether we have a connection
210: ** or not - if so then we can jump directly to connect() to
211: ** test it - otherwise we must around DNS to get the name
2.93 eric 212: ** Resolved
2.83 frystyk 213: */
2.95 frystyk 214: if (HTHost_channel(me) == NULL) {
215: me->tcpstate = TCP_DNS;
216: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_DNS.\n"), me);
217: } else {
218:
219: /*
220: ** Get a new session on the MUX layer - we already have a
221: ** connection.
222: */
223: #ifdef HT_MUX
224: HTMuxChannel * muxch = HTMuxChannel_find(me);
225: HTProtocol * protocol = HTNet_protocol(net);
226: net->session = HTMuxSession_connect(muxch, net, HTProtocol_id(protocol));
227: #endif /* HT_MUX */
228:
229: /*
230: ** There is now one more using the channel
231: */
232: HTChannel_upSemaphore(me->channel);
233:
234: /*
235: ** We are now all set and can jump to connected mode
236: */
237: me->tcpstate = TCP_CONNECTED;
238: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_CONNECTED.\n"), me);
239: }
240: hostname = HTHost_name(me);
2.55 frystyk 241: break;
242:
2.91 frystyk 243: case TCP_DNS:
2.95 frystyk 244: if ((status = HTParseInet(me, hostname, request)) < 0) {
245: if (PROT_TRACE) HTTrace(HTHIDE("HTDoConnect. Can't locate `%s\'\n"), hostname);
2.91 frystyk 246: HTRequest_addError(request, ERR_FATAL, NO,
247: HTERR_NO_REMOTE_HOST,
248: (void *) hostname, strlen(hostname),
249: "HTDoConnect");
2.95 frystyk 250: me->tcpstate = TCP_ERROR;
251: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_ERROR.\n"), me);
2.27 frystyk 252: break;
2.55 frystyk 253: }
2.95 frystyk 254: if (!retry && status > 1) /* If multiple homes */
255: retry = status;
256: me->tcpstate = TCP_NEED_SOCKET;
257: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_NEED_SOCKET.\n"), me);
2.55 frystyk 258: break;
259:
260: case TCP_NEED_SOCKET:
2.95 frystyk 261: if (_makeSocket(me, request, preemptive, net->transport) == -1)
2.27 frystyk 262: break;
2.95 frystyk 263:
264: #ifdef HT_MUX
265: /*
266: ** Create a MUX channel and do a connect on this channel with a
267: ** new session.
268: */
269: {
270: HTProtocol * protocol = HTNet_protocol(net);
271: HTMuxChannel * muxch = HTMuxChannel_new(me);
272: net->session = HTMuxSession_connect(muxch, net, HTProtocol_id(protocol));
273: }
274: #endif /* HT_MUX */
2.83 frystyk 275:
2.27 frystyk 276: /* If multi-homed host then start timer on connection */
2.95 frystyk 277: if (retry) me->connecttime = time(NULL);
2.65 frystyk 278:
279: /* Progress */
280: {
281: HTAlertCallback *cbf = HTAlert_find(HT_PROG_CONNECT);
2.95 frystyk 282: if (cbf) (*cbf)(request, HT_PROG_CONNECT, HT_MSG_NULL,
2.91 frystyk 283: NULL, hostname, NULL);
2.65 frystyk 284: }
2.95 frystyk 285: me->tcpstate = TCP_NEED_CONNECT;
286: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_NEED_CONNECT.\n"), me);
2.55 frystyk 287: break;
2.56 frystyk 288: case TCP_NEED_CONNECT:
2.95 frystyk 289: status = connect(HTChannel_socket(me->channel), (struct sockaddr *) &me->sock_addr,
290: sizeof(me->sock_addr));
2.55 frystyk 291: /*
292: * According to the Sun man page for connect:
293: * EINPROGRESS The socket is non-blocking and the con-
294: * nection cannot be completed immediately.
295: * It is possible to select(2) for comple-
296: * tion by selecting the socket for writ-
297: * ing.
298: * According to the Motorola SVR4 man page for connect:
299: * EAGAIN The socket is non-blocking and the con-
300: * nection cannot be completed immediately.
301: * It is possible to select for completion
302: * by selecting the socket for writing.
303: * However, this is only possible if the
304: * socket STREAMS module is the topmost
305: * module on the protocol stack with a
306: * write service procedure. This will be
307: * the normal case.
308: */
2.93 eric 309: if (NETCALL_ERROR(status))
2.55 frystyk 310: {
2.93 eric 311: if (NETCALL_WOULDBLOCK(socerrno))
2.55 frystyk 312: {
2.95 frystyk 313: if (PROT_TRACE) HTTrace(HTHIDE("HTDoConnect. WOULD BLOCK `%s'\n"), hostname);
314: HTHost_register(me, net, HTEvent_CONNECT);
2.55 frystyk 315: return HT_WOULD_BLOCK;
316: }
317: if (socerrno == EISCONN) {
2.95 frystyk 318: me->tcpstate = TCP_CONNECTED;
319: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_CONNECTED.\n"), me);
2.55 frystyk 320: break;
321: }
2.93 eric 322: if (NETCALL_DEADSOCKET(socerrno)) /* We lost the socket */
2.58 frystyk 323: {
2.95 frystyk 324: me->tcpstate = TCP_NEED_SOCKET;
325: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_NEED_SOCKET.\n"), me);
2.55 frystyk 326: break;
2.27 frystyk 327: }
2.95 frystyk 328: if (retry) {
329: me->connecttime -= time(NULL);
2.54 frystyk 330: /* Added EINVAL `invalid argument' as this is what I
331: get back from a non-blocking connect where I should
332: get `connection refused' on BSD. SVR4 gives SIG_PIPE */
2.94 frystyk 333: #if defined(__svr4__) || defined (_WINSOCKAPI_)
2.55 frystyk 334: if (socerrno==ECONNREFUSED || socerrno==ETIMEDOUT ||
335: socerrno==ENETUNREACH || socerrno==EHOSTUNREACH ||
336: socerrno==EHOSTDOWN)
337: #else
2.54 frystyk 338: if (socerrno==ECONNREFUSED || socerrno==ETIMEDOUT ||
339: socerrno==ENETUNREACH || socerrno==EHOSTUNREACH ||
340: socerrno==EHOSTDOWN || socerrno==EINVAL)
2.35 roeber 341: #endif
2.95 frystyk 342: me->connecttime += TCP_DELAY;
2.54 frystyk 343: else
2.95 frystyk 344: me->connecttime += TCP_PENALTY;
345: HTDNS_updateWeigths(me->dns, me->home, me->connecttime);
2.55 frystyk 346: }
2.95 frystyk 347: me->tcpstate = TCP_ERROR;
348: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_ERROR.\n"), me);
349: } else {
350: me->tcpstate = TCP_CONNECTED;
351: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_CONNECTED.\n"), me);
352: }
2.55 frystyk 353: break;
354:
355: case TCP_CONNECTED:
2.95 frystyk 356: HTHost_unregister(me, net, HTEvent_CONNECT);
357: if (retry) {
358: me->connecttime -= time(NULL);
359: HTDNS_updateWeigths(me->dns, me->home, me->connecttime);
2.27 frystyk 360: }
2.95 frystyk 361: retry = 0;
362: me->tcpstate = TCP_BEGIN;
363: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p connected.\n"), me);
2.55 frystyk 364: return HT_OK;
365: break;
366:
2.56 frystyk 367: case TCP_NEED_BIND:
368: case TCP_NEED_LISTEN:
2.55 frystyk 369: case TCP_ERROR:
2.95 frystyk 370: HTTrace(HTHIDE("HTDoConnect. Connect failed %d\n"), socerrno);
371: if (HTChannel_socket(me->channel) != INVSOC) {
372: /* HTEvent_unregister(HTChannel_socket(me->channel), (SockOps) FD_ALL); */
373: NETCLOSE(HTChannel_socket(me->channel));
374: /* HTChannel_setSocket(me->channel, INVSOC); */
375: #if 1 /* @@@ */
376: if (HTHost_isPersistent(me)) { /* Inherited socket */
377: HTHost_setPersistent(me, NO, HT_TP_SINGLE);
378: me->tcpstate = TCP_NEED_SOCKET;
379: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_NEED_SOCKET.\n"), me);
2.55 frystyk 380: break;
381: }
2.95 frystyk 382: #endif
2.55 frystyk 383: }
384:
385: /* Do we have more homes to try? */
2.95 frystyk 386: if (--retry > 0) {
2.65 frystyk 387: HTRequest_addSystemError(request, ERR_NON_FATAL, socerrno, NO,
2.55 frystyk 388: "connect");
2.95 frystyk 389: me->tcpstate = TCP_DNS;
390: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_DNS.\n"), me);
2.24 frystyk 391: break;
392: }
2.65 frystyk 393: HTRequest_addSystemError(request, ERR_FATAL,socerrno,NO,"connect");
2.91 frystyk 394: HTDNS_delete(hostname);
2.95 frystyk 395: retry = 0;
396: me->tcpstate = TCP_BEGIN;
397: if (PROT_TRACE) HTTrace(HTHIDE("HTHost %p going to state TCP_BEGIN.\n"), me);
2.55 frystyk 398: return HT_ERROR;
399: break;
2.24 frystyk 400: }
2.55 frystyk 401: }
2.13 frystyk 402: }
403:
2.56 frystyk 404: /* HTDoAccept()
405: ** ------------
406: ** This function makes a non-blocking accept which will turn up as ready
407: ** read in the select.
408: ** Returns
409: ** HT_ERROR Error has occured or interrupted
410: ** HT_OK if connected
411: ** HT_WOULD_BLOCK if operation would have blocked
2.13 frystyk 412: */
2.95 frystyk 413:
2.88 frystyk 414: PUBLIC int HTDoAccept (HTNet * net, HTNet ** accepted)
2.13 frystyk 415: {
416: int status;
2.95 frystyk 417: int size = sizeof(net->host->sock_addr);
2.88 frystyk 418: HTRequest * request = HTNet_request(net);
2.95 frystyk 419: if (!request || HTNet_socket(net)==INVSOC) {
2.77 eric 420: if (PROT_TRACE) HTTrace("HTDoAccept.. Invalid socket\n");
2.56 frystyk 421: return HT_ERROR;
2.13 frystyk 422: }
2.65 frystyk 423:
424: /* Progress report */
425: {
426: HTAlertCallback *cbf = HTAlert_find(HT_PROG_ACCEPT);
427: if (cbf) (*cbf)(request, HT_PROG_ACCEPT, HT_MSG_NULL,NULL, NULL, NULL);
428: }
2.95 frystyk 429: status = accept(HTNet_socket(net), (struct sockaddr *) &net->host->sock_addr, &size);
2.93 eric 430: if (NETCALL_ERROR(status))
2.23 duns 431: {
2.93 eric 432: if (NETCALL_WOULDBLOCK(socerrno))
2.56 frystyk 433: {
434: if (PROT_TRACE)
2.95 frystyk 435: HTTrace("HTDoAccept.. WOULD BLOCK %d\n", HTNet_socket(net));
436: HTEvent_register(HTNet_socket(net), HTEvent_ACCEPT, &net->event);
2.56 frystyk 437: return HT_WOULD_BLOCK;
438: }
2.65 frystyk 439: HTRequest_addSystemError(request, ERR_WARN, socerrno, YES, "accept");
2.77 eric 440: if (PROT_TRACE) HTTrace("HTDoAccept.. Accept failed\n");
2.56 frystyk 441: return HT_ERROR;
2.23 duns 442: }
2.71 frystyk 443:
2.88 frystyk 444: if (PROT_TRACE) HTTrace("Accepted.... socket %d\n", status);
445:
446: /*
447: ** If accepted is the same as the net obejct then reuse it, else create
448: ** a new object and leave the original alone
449: */
450: if (*accepted == net)
451: HTDoClose(net);
452: else
453: *accepted = HTNet_dup(net);
2.95 frystyk 454: HTNet_setSocket(*accepted, status);
2.83 frystyk 455:
456: /* Create a channel for the new socket */
2.95 frystyk 457: {
458: HTHost * host = (*accepted)->host;
459: HTChannel * ch = HTChannel_new(HTNet_socket(*accepted), NO);
460: #ifdef HT_MUX
461: HTMuxChannel_new(host);
462: #endif /* HT_MUX */
463: HTHost_setChannel(host, ch);
464: }
2.56 frystyk 465: return HT_OK;
466: }
467:
468:
469: /* HTDoListen
470: ** ----------
471: ** Listens on the specified port. 0 means that we chose it here
472: ** If master==INVSOC then we listen on all local interfaces (using a
473: ** wildcard). If !INVSOC then use this as the local interface
474: ** returns HT_ERROR Error has occured or interrupted
475: ** HT_OK if connected
476: */
2.67 frystyk 477: PUBLIC int HTDoListen (HTNet * net, u_short port, SOCKET master, int backlog)
2.56 frystyk 478: {
479: int status;
480:
481: /* Jump into the state machine */
482: while (1) {
2.95 frystyk 483: switch (net->host->tcpstate) {
2.56 frystyk 484: case TCP_BEGIN:
485: {
2.95 frystyk 486: SockA *sin = &net->host->sock_addr;
2.56 frystyk 487: memset((void *) sin, '\0', sizeof(SockA));
488: #ifdef DECNET
489: sin->sdn_family = AF_DECnet;
490: sin->sdn_objnum = port;
2.36 frystyk 491: #else
2.56 frystyk 492: sin->sin_family = AF_INET;
493: if (master != INVSOC) {
494: int len = sizeof(SockA);
495: if (getsockname(master, (struct sockaddr *) sin, &len)<0) {
2.65 frystyk 496: HTRequest_addSystemError(net->request, ERR_FATAL,
497: socerrno, NO, "getsockname");
2.95 frystyk 498: net->host->tcpstate = TCP_ERROR;
2.56 frystyk 499: break;
500: }
501: } else
502: sin->sin_addr.s_addr = INADDR_ANY;
503: sin->sin_port = htons(port);
504: #endif
505: }
506: if (PROT_TRACE)
2.83 frystyk 507: HTTrace("Socket...... Listen on port %d\n", port);
2.95 frystyk 508: net->host->tcpstate = TCP_NEED_SOCKET;
2.56 frystyk 509: break;
510:
511: case TCP_NEED_SOCKET:
2.95 frystyk 512: if (_makeSocket(net->host, net->request, net->preemptive, net->transport) == -1)
2.93 eric 513: break;
2.95 frystyk 514: net->host->tcpstate = TCP_NEED_BIND;
2.56 frystyk 515: break;
516:
517: case TCP_NEED_BIND:
2.95 frystyk 518: status = bind(HTNet_socket(net), (struct sockaddr *) &net->host->sock_addr,
519: sizeof(net->host->sock_addr));
2.93 eric 520: if (NETCALL_ERROR(status))
2.56 frystyk 521: {
522: if (PROT_TRACE)
2.83 frystyk 523: HTTrace("Socket...... Bind failed %d\n", socerrno);
2.95 frystyk 524: net->host->tcpstate = TCP_ERROR;
2.56 frystyk 525: } else
2.95 frystyk 526: net->host->tcpstate = TCP_NEED_LISTEN;
2.56 frystyk 527: break;
528:
529: case TCP_NEED_LISTEN:
2.95 frystyk 530: status = listen(HTNet_socket(net), backlog);
2.93 eric 531: if (NETCALL_ERROR(status))
2.95 frystyk 532: net->host->tcpstate = TCP_ERROR;
2.56 frystyk 533: else
2.95 frystyk 534: net->host->tcpstate = TCP_CONNECTED;
2.56 frystyk 535: break;
536:
537: case TCP_CONNECTED:
2.95 frystyk 538: net->host->tcpstate = TCP_BEGIN;
2.56 frystyk 539: if (PROT_TRACE)
2.83 frystyk 540: HTTrace("Socket...... Bind and listen on port %d %s\n",
2.95 frystyk 541: (int) ntohs(net->host->sock_addr.sin_port),
542: HTInetString(&net->host->sock_addr));
2.56 frystyk 543: return HT_OK;
544: break;
2.13 frystyk 545:
2.91 frystyk 546: case TCP_CHANNEL:
2.56 frystyk 547: case TCP_NEED_CONNECT:
548: case TCP_DNS:
549: case TCP_ERROR:
2.83 frystyk 550: if (PROT_TRACE) HTTrace("Socket...... Listen failed\n");
2.62 frystyk 551: HTRequest_addSystemError(net->request, ERR_FATAL, socerrno, NO, "HTDoListen");
2.95 frystyk 552: net->host->tcpstate = TCP_BEGIN;
2.56 frystyk 553: return HT_ERROR;
554: break;
555: }
2.38 frystyk 556: }
1.1 timbl 557: }
558:
2.83 frystyk 559: /* HTDoClose
560: ** ---------
561: ** Closes a file descriptor whatever means are available on the current
562: ** platform. If we have unix file descriptors then use this otherwise use
563: ** the ANSI C file descriptors
564: **
565: ** returns HT_ERROR Error has occured or interrupted
566: ** HT_OK if connected
567: ** HT_WOULD_BLOCK if operation would have blocked
568: */
2.87 frystyk 569: PUBLIC int HTDoClose (HTNet * net)
2.83 frystyk 570: {
571: int status = -1;
2.95 frystyk 572: if (net && HTNet_socket(net) != INVSOC) {
573: if (PROT_TRACE) HTTrace("HTDoClose... Close %d\n", HTNet_socket(net));
574: status = NETCLOSE(HTNet_socket(net));
575: /* HTEvent_unregister(HTNet_socket(net), (SockOps) FD_ALL); */
2.91 frystyk 576: HTNet_decreaseSocket();
2.95 frystyk 577: HTNet_setSocket(net, INVSOC);
2.91 frystyk 578:
579: /*
580: ** As we have a socket available we check for whether
581: ** we can start any pending requests. We do this by asking for
582: ** pending Host objects. If none then use the current object
583: */
584: HTHost_launchPending(net->host);
585:
586: } else
587: if (PROT_TRACE) HTTrace("HTDoClose... No pending requests\n");
2.83 frystyk 588: return status < 0 ? HT_ERROR : HT_OK;
589: }
2.91 frystyk 590:
2.83 frystyk 591:
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