2 * Copyright (c) 1995-2001, Index Data
3 * See the file LICENSE for details.
6 * Revision 1.38 2001-03-21 12:43:36 adam
7 * Implemented cs_create_host. Better error reporting for SSL comstack.
9 * Revision 1.37 2001/03/08 20:18:55 adam
10 * Added cs_set_blocking. Patch from Matthew Carey.
12 * Revision 1.36 2001/02/21 13:46:53 adam
15 * Revision 1.35 2000/11/27 15:17:40 adam
16 * Using SSLeay_add_all_algorithms instead of OpenSSL_add_all_algorithms.
18 * Revision 1.34 2000/11/23 10:58:32 adam
19 * SSL comstack support. Separate POSIX thread support library.
21 * Revision 1.33 2000/09/04 08:27:11 adam
22 * Work on error handling for tcpip_accept.
24 * Revision 1.32 1999/11/30 13:47:11 adam
25 * Improved installation. Moved header files to include/yaz.
27 * Revision 1.31 1999/04/29 07:31:23 adam
28 * Changed tcpip_strtoaddr_ex so that only part 'till '/' is considered
31 * Revision 1.30 1999/04/20 09:56:48 adam
32 * Added 'name' paramter to encoder/decoder routines (typedef Odr_fun).
33 * Modified all encoders/decoders to reflect this change.
35 * Revision 1.29 1999/04/16 14:45:55 adam
36 * Added interface for tcpd wrapper for access control.
38 * Revision 1.28 1999/03/31 11:11:14 adam
39 * Function getprotobyname only called once. Minor change in tcpip_get
40 * to handle multi-threaded conditions.
42 * Revision 1.27 1999/02/02 13:57:31 adam
43 * Uses preprocessor define WIN32 instead of WINDOWS to build code
44 * for Microsoft WIN32.
46 * Revision 1.26 1999/01/08 11:23:14 adam
47 * Added const modifier to some of the BER/ODR encoding routines.
49 * Revision 1.25 1998/07/07 15:49:23 adam
50 * Added braces to avoid warning.
52 * Revision 1.24 1998/06/29 07:59:17 adam
55 * Revision 1.23 1998/06/23 15:37:50 adam
56 * Added type cast to prevent warning.
58 * Revision 1.22 1998/06/22 11:32:36 adam
59 * Added 'conditional cs_listen' feature.
61 * Revision 1.21 1998/05/20 09:55:32 adam
62 * Function tcpip_get treats EINPROGRESS error in the same way as
63 * EWOULDBLOCK. EINPROGRESS shouldn't be returned - but it is on
64 * Solaris in some cases.
66 * Revision 1.20 1998/05/18 10:10:40 adam
67 * Minor change to avoid C++ warning.
69 * Revision 1.19 1998/02/11 11:53:33 adam
70 * Changed code so that it compiles as C++.
72 * Revision 1.18 1997/09/29 07:15:25 adam
73 * Changed use of setsockopt to avoid warnings on MSVC.
75 * Revision 1.17 1997/09/17 12:10:30 adam
78 * Revision 1.16 1997/09/01 08:49:14 adam
79 * New windows NT/95 port using MSV5.0. Minor changes only.
81 * Revision 1.15 1997/05/14 06:53:33 adam
84 * Revision 1.14 1997/05/01 15:06:32 adam
85 * Moved WINSOCK init. code to tcpip_init routine.
87 * Revision 1.13 1996/11/01 08:45:18 adam
88 * Bug fix: used close on MS-Windows. Fixed to closesocket.
90 * Revision 1.12 1996/07/06 19:58:30 quinn
91 * System headerfiles gathered in yconfig
93 * Revision 1.11 1996/02/23 10:00:39 quinn
96 * Revision 1.10 1996/02/20 12:52:11 quinn
97 * WAIS protocol support.
99 * Revision 1.9 1996/02/10 12:23:11 quinn
100 * Enablie inetd operations fro TCP/IP stack
102 * Revision 1.8 1995/11/01 13:54:27 quinn
105 * Revision 1.7 1995/10/30 12:41:16 quinn
106 * Added hostname lookup for server.
108 * Revision 1.6 1995/09/29 17:12:00 quinn
111 * Revision 1.5 1995/09/29 17:01:48 quinn
114 * Revision 1.4 1995/09/28 10:12:26 quinn
115 * Windows-support changes
117 * Revision 1.3 1995/09/27 15:02:45 quinn
118 * Modified function heads & prototypes.
120 * Revision 1.2 1995/06/15 12:30:06 quinn
121 * Added @ as hostname alias for INADDR ANY.
123 * Revision 1.1 1995/06/14 09:58:20 quinn
124 * Renamed yazlib to comstack.
126 * Revision 1.20 1995/05/16 08:51:16 quinn
127 * License, documentation, and memory fixes
129 * Revision 1.19 1995/04/10 10:24:08 quinn
132 * Revision 1.18 1995/03/30 13:29:27 quinn
133 * Added REUSEADDR in tcpip_bind
135 * Revision 1.17 1995/03/27 08:36:10 quinn
136 * Some work on nonblocking operation in xmosi.c and rfct.c.
137 * Added protocol parameter to cs_create()
139 * Revision 1.16 1995/03/21 15:53:41 quinn
142 * Revision 1.15 1995/03/21 12:31:27 quinn
143 * Added check for EINPROGRESS on connect.
145 * Revision 1.14 1995/03/20 09:47:21 quinn
146 * Added server-side support to xmosi.c
147 * Fixed possible problems in rfct
150 * Revision 1.13 1995/03/15 16:15:13 adam
153 * Revision 1.12 1995/03/15 15:36:27 quinn
154 * Mods to support nonblocking I/O
156 * Revision 1.11 1995/03/15 08:37:57 quinn
157 * Now we're pretty much set for nonblocking I/O.
159 * Revision 1.10 1995/03/14 17:00:07 quinn
160 * Bug-fixes - added tracing info to tcpip.c
162 * Revision 1.9 1995/03/14 10:28:42 quinn
163 * Adding server-side support to tcpip.c and fixing bugs in nonblocking I/O
165 * Revision 1.8 1995/03/10 14:22:50 quinn
166 * Removed debug output.
168 * Revision 1.7 1995/03/10 11:44:59 quinn
169 * Fixes and debugging
171 * Revision 1.6 1995/03/07 10:26:55 quinn
172 * Initialized type field in the comstacks.
174 * Revision 1.5 1995/02/14 20:40:07 quinn
177 * Revision 1.4 1995/02/14 11:54:49 quinn
178 * Beginning to add full CCL.
180 * Revision 1.3 1995/02/10 18:58:10 quinn
181 * Fixed tcpip_get (formerly tcpip_read).
182 * Turned tst (cli) into a proper, event-driven thingy.
184 * Revision 1.2 1995/02/10 15:55:47 quinn
187 * Revision 1.1 1995/02/09 15:51:52 quinn
200 #if HAVE_OPENSSL_SSL_H
201 #include <openssl/ssl.h>
202 #include <openssl/err.h>
205 #include <yaz/comstack.h>
206 #include <yaz/tcpip.h>
209 /* Chas added the following, so we get the definition of completeBER */
212 int tcpip_close(COMSTACK h);
213 int tcpip_put(COMSTACK h, char *buf, int size);
214 int tcpip_get(COMSTACK h, char **buf, int *bufsize);
215 int tcpip_connect(COMSTACK h, void *address);
216 int tcpip_more(COMSTACK h);
217 int tcpip_rcvconnect(COMSTACK h);
218 int tcpip_bind(COMSTACK h, void *address, int mode);
219 int tcpip_listen(COMSTACK h, char *raddr, int *addrlen,
220 int (*check_ip)(void *cd, const char *a, int len, int type),
222 int static tcpip_set_blocking(COMSTACK p, int blocking);
224 #if HAVE_OPENSSL_SSL_H
225 int ssl_get(COMSTACK h, char **buf, int *bufsize);
226 int ssl_put(COMSTACK h, char *buf, int size);
229 COMSTACK tcpip_accept(COMSTACK h);
230 char *tcpip_addrstr(COMSTACK h);
231 void *tcpip_straddr(COMSTACK h, const char *str);
239 /* this state is used for both SSL and straight TCP/IP */
240 typedef struct tcpip_state
242 char *altbuf; /* alternate buffer for surplus data */
243 int altsize; /* size as xmalloced */
244 int altlen; /* length of data or 0 if none */
246 int written; /* -1 if we aren't writing */
247 int towrite; /* to verify against user input */
248 int (*complete)(const unsigned char *buf, int len); /* length/comple. */
249 struct sockaddr_in addr; /* returned by cs_straddr */
250 char buf[128]; /* returned by cs_addrstr */
251 #if HAVE_OPENSSL_SSL_H
259 static int tcpip_init (void)
261 static int initialized = 0;
267 requested = MAKEWORD(1, 1);
268 if (WSAStartup(requested, &wd))
275 static int proto_number = 0;
277 static int tcpip_init (void)
279 struct protoent *proto;
280 /* only call getprotobyname once, in case it allocates memory */
281 if (!(proto = getprotobyname("tcp")))
283 proto_number = proto->p_proto;
289 * This function is always called through the cs_create() macro.
290 * s >= 0: socket has already been established for us.
292 COMSTACK tcpip_type(int s, int blocking, int protocol, void *vp)
298 unsigned long tru = 1;
306 if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0)
309 if ((s = socket(AF_INET, SOCK_STREAM, proto_number)) < 0)
316 if (!(p = (struct comstack *)xmalloc(sizeof(struct comstack))))
318 if (!(state = (struct tcpip_state *)(p->cprivate =
319 xmalloc(sizeof(tcpip_state)))))
323 if (!(p->blocking = blocking) && ioctlsocket(s, FIONBIO, &tru) < 0)
325 if (!(p->blocking = blocking) && fcntl(s, F_SETFL, O_NONBLOCK) < 0)
331 p->type = tcpip_type;
332 p->protocol = (enum oid_proto) protocol;
334 p->f_connect = tcpip_connect;
335 p->f_rcvconnect = tcpip_rcvconnect;
336 p->f_get = tcpip_get;
337 p->f_put = tcpip_put;
338 p->f_close = tcpip_close;
339 p->f_more = tcpip_more;
340 p->f_bind = tcpip_bind;
341 p->f_listen = tcpip_listen;
342 p->f_accept = tcpip_accept;
343 p->f_addrstr = tcpip_addrstr;
344 p->f_straddr = tcpip_straddr;
345 p->f_set_blocking = tcpip_set_blocking;
347 p->state = new_socket ? CS_UNBND : CS_IDLE; /* state of line */
352 #if HAVE_OPENSSL_SSL_H
353 state->ctx = state->ctx_alloc = 0;
358 state->altsize = state->altlen = 0;
359 state->towrite = state->written = -1;
360 if (protocol == PROTO_WAIS)
361 state->complete = completeWAIS;
363 state->complete = completeBER;
365 p->timeout = COMSTACK_DEFAULT_TIMEOUT;
366 TRC(fprintf(stderr, "Created new TCPIP comstack\n"));
371 #if HAVE_OPENSSL_SSL_H
373 COMSTACK ssl_type(int s, int blocking, int protocol, void *vp)
377 yaz_log(LOG_LOG, "ssl_type begin");
379 p = tcpip_type (s, blocking, protocol, 0);
385 state = (tcpip_state *) p->cprivate;
390 SSL_load_error_strings();
391 SSLeay_add_all_algorithms();
393 state->ctx = state->ctx_alloc = SSL_CTX_new (SSLv23_method());
400 /* note: we don't handle already opened socket in SSL mode - yet */
401 yaz_log(LOG_LOG, "ssl_type end");
406 int tcpip_strtoaddr_ex(const char *str, struct sockaddr_in *add)
410 short int port = 210;
415 TRC(fprintf(stderr, "tcpip_strtoaddress: %s\n", str ? str : "NULL"));
416 add->sin_family = AF_INET;
417 strncpy(buf, str, 511);
419 if ((p = strchr(buf, '/')))
421 if ((p = strchr(buf, ':')))
426 add->sin_port = htons(port);
427 if (!strcmp("@", buf))
428 add->sin_addr.s_addr = INADDR_ANY;
429 else if ((hp = gethostbyname(buf)))
430 memcpy(&add->sin_addr.s_addr, *hp->h_addr_list,
431 sizeof(struct in_addr));
432 else if ((tmpadd = (unsigned) inet_addr(buf)) != 0)
433 memcpy(&add->sin_addr.s_addr, &tmpadd, sizeof(struct in_addr));
439 void *tcpip_straddr(COMSTACK h, const char *str)
441 tcpip_state *sp = (tcpip_state *)h->cprivate;
443 if (!tcpip_strtoaddr_ex (str, &sp->addr))
448 struct sockaddr_in *tcpip_strtoaddr(const char *str)
450 static struct sockaddr_in add;
452 if (!tcpip_strtoaddr_ex (str, &add))
457 int tcpip_more(COMSTACK h)
459 tcpip_state *sp = (tcpip_state *)h->cprivate;
461 return sp->altlen && (*sp->complete)((unsigned char *) sp->altbuf,
466 * connect(2) will block (sometimes) - nothing we can do short of doing
467 * weird things like spawning subprocesses or threading or some weird junk
470 int tcpip_connect(COMSTACK h, void *address)
472 struct sockaddr_in *add = (struct sockaddr_in *)address;
473 #if HAVE_OPENSSL_SSL_H
474 tcpip_state *sp = (tcpip_state *)h->cprivate;
478 TRC(fprintf(stderr, "tcpip_connect\n"));
480 if (h->state == CS_UNBND)
482 r = connect(h->iofile, (struct sockaddr *) add, sizeof(*add));
486 if (WSAGetLastError() == WSAEWOULDBLOCK)
488 h->state = CS_CONNECTING;
489 h->io_pending = CS_WANT_WRITE;
493 if (errno == EINPROGRESS)
495 h->state = CS_CONNECTING;
496 h->io_pending = CS_WANT_WRITE|CS_WANT_READ;
503 h->state = CS_CONNECTING;
505 if (h->state != CS_CONNECTING)
507 h->cerrno = CSOUTSTATE;
510 #if HAVE_OPENSSL_SSL_H
517 sp->ssl = SSL_new (sp->ctx);
518 SSL_set_fd (sp->ssl, h->iofile);
520 res = SSL_connect (sp->ssl);
523 int err = SSL_get_error(sp->ssl, res);
524 if (err == SSL_ERROR_WANT_READ)
526 yaz_log (LOG_LOG, "SSL_connect. want_read");
527 h->io_pending = CS_WANT_READ;
530 if (err == SSL_ERROR_WANT_WRITE)
532 yaz_log (LOG_LOG, "SSL_connect. want_write");
533 h->io_pending = CS_WANT_WRITE;
536 h->cerrno = CSERRORSSL;
541 h->state = CS_DATAXFER;
548 int tcpip_rcvconnect(COMSTACK h)
550 TRC(fprintf(stderr, "tcpip_rcvconnect\n"));
554 #define CERTF "ztest.pem"
555 #define KEYF "ztest.pem"
557 int tcpip_bind(COMSTACK h, void *address, int mode)
559 struct sockaddr *addr = (struct sockaddr *)address;
563 unsigned long one = 1;
566 #if HAVE_OPENSSL_SSL_H
567 tcpip_state *sp = (tcpip_state *)h->cprivate;
573 res = SSL_CTX_use_certificate_file (sp->ctx, CERTF,
577 ERR_print_errors_fp(stderr);
580 res = SSL_CTX_use_PrivateKey_file (sp->ctx, KEYF,
584 ERR_print_errors_fp(stderr);
587 res = SSL_CTX_check_private_key (sp->ctx);
590 ERR_print_errors_fp(stderr);
594 TRC (fprintf (stderr, "ssl_bind\n"));
598 TRC (fprintf (stderr, "tcpip_bind\n"));
601 TRC (fprintf (stderr, "tcpip_bind\n"));
603 if (setsockopt(h->iofile, SOL_SOCKET, SO_REUSEADDR, (char*)
604 &one, sizeof(one)) < 0)
609 if (bind(h->iofile, addr, sizeof(struct sockaddr_in)) < 0)
614 if (mode == CS_SERVER && listen(h->iofile, 3) < 0)
623 int tcpip_listen(COMSTACK h, char *raddr, int *addrlen,
624 int (*check_ip)(void *cd, const char *a, int len, int t),
627 struct sockaddr_in addr;
629 socklen_t len = sizeof(addr);
631 int len = sizeof(addr);
634 TRC(fprintf(stderr, "tcpip_listen pid=%d\n", getpid()));
635 if (h->state != CS_IDLE)
637 h->cerrno = CSOUTSTATE;
640 h->newfd = accept(h->iofile, (struct sockaddr*)&addr, &len);
645 WSAGetLastError() == WSAEWOULDBLOCK
650 h->cerrno = CSNODATA;
655 if (addrlen && (size_t) (*addrlen) >= sizeof(struct sockaddr_in))
656 memcpy(raddr, &addr, *addrlen = sizeof(struct sockaddr_in));
659 if (check_ip && (*check_ip)(cd, (const char *) &addr,
660 sizeof(addr), AF_INET))
664 closesocket(h->newfd);
675 COMSTACK tcpip_accept(COMSTACK h)
678 tcpip_state *state, *st = (tcpip_state *)h->cprivate;
680 unsigned long tru = 1;
683 TRC(fprintf(stderr, "tcpip_accept\n"));
684 if (h->state == CS_INCON)
686 if (!(cnew = (COMSTACK)xmalloc(sizeof(*cnew))))
690 closesocket(h->newfd);
697 memcpy(cnew, h, sizeof(*h));
698 cnew->iofile = h->newfd;
699 cnew->io_pending = 0;
700 if (!(state = (tcpip_state *)
701 (cnew->cprivate = xmalloc(sizeof(tcpip_state)))))
707 closesocket(h->newfd);
715 if (!cnew->blocking &&
717 (ioctlsocket(cnew->iofile, FIONBIO, &tru) < 0)
719 (!cnew->blocking && fcntl(cnew->iofile, F_SETFL, O_NONBLOCK) < 0)
727 closesocket(h->newfd);
739 state->altsize = state->altlen = 0;
740 state->towrite = state->written = -1;
741 state->complete = st->complete;
742 cnew->state = CS_ACCEPT;
745 #if HAVE_OPENSSL_SSL_H
746 state->ctx = st->ctx;
747 state->ctx_alloc = 0;
748 state->ssl = st->ssl;
751 state->ssl = SSL_new (state->ctx);
752 SSL_set_fd (state->ssl, cnew->iofile);
757 if (h->state == CS_ACCEPT)
759 #if HAVE_OPENSSL_SSL_H
760 tcpip_state *state = (tcpip_state *)h->cprivate;
763 int res = SSL_accept (state->ssl);
764 TRC(fprintf(stderr, "SSL_accept\n"));
767 int err = SSL_get_error(state->ssl, res);
768 if (err == SSL_ERROR_WANT_READ)
770 h->io_pending = CS_WANT_READ;
771 yaz_log (LOG_LOG, "SSL_accept. want_read");
774 if (err == SSL_ERROR_WANT_WRITE)
776 h->io_pending = CS_WANT_WRITE;
777 yaz_log (LOG_LOG, "SSL_accept. want_write");
788 h->cerrno = CSOUTSTATE;
792 h->state = CS_DATAXFER;
796 #define CS_TCPIP_BUFCHUNK 4096
799 * Return: -1 error, >1 good, len of buffer, ==1 incomplete buffer,
800 * 0=connection closed.
802 int tcpip_get(COMSTACK h, char **buf, int *bufsize)
804 tcpip_state *sp = (tcpip_state *)h->cprivate;
806 int tmpi, berlen, rest, req, tomove;
807 int hasread = 0, res;
809 TRC(fprintf(stderr, "tcpip_get: bufsize=%d\n", *bufsize));
810 if (sp->altlen) /* switch buffers */
812 TRC(fprintf(stderr, " %d bytes in altbuf (0x%x)\n", sp->altlen,
813 (unsigned) sp->altbuf));
817 *bufsize = sp->altsize;
818 hasread = sp->altlen;
824 while (!(berlen = (*sp->complete)((unsigned char *)*buf, hasread)))
828 if (!(*buf = (char *)xmalloc(*bufsize = CS_TCPIP_BUFCHUNK)))
831 else if (*bufsize - hasread < CS_TCPIP_BUFCHUNK)
832 if (!(*buf =(char *)xrealloc(*buf, *bufsize *= 2)))
834 res = recv(h->iofile, *buf + hasread, CS_TCPIP_BUFCHUNK, 0);
835 TRC(fprintf(stderr, " recv res=%d, hasread=%d\n", res, hasread));
839 if (WSAGetLastError() == WSAEWOULDBLOCK)
841 h->io_pending = CS_WANT_READ;
847 if (errno == EWOULDBLOCK
849 || errno == EINPROGRESS
853 h->io_pending = CS_WANT_READ;
866 TRC (fprintf (stderr, " Out of read loop with hasread=%d, berlen=%d\n",
868 /* move surplus buffer (or everything if we didn't get a BER rec.) */
869 if (hasread > berlen)
871 tomove = req = hasread - berlen;
872 rest = tomove % CS_TCPIP_BUFCHUNK;
874 req += CS_TCPIP_BUFCHUNK - rest;
877 if (!(sp->altbuf = (char *)xmalloc(sp->altsize = req)))
879 } else if (sp->altsize < req)
880 if (!(sp->altbuf =(char *)xrealloc(sp->altbuf, sp->altsize = req)))
882 TRC(fprintf(stderr, " Moving %d bytes to altbuf(0x%x)\n", tomove,
883 (unsigned) sp->altbuf));
884 memcpy(sp->altbuf, *buf + berlen, sp->altlen = tomove);
886 if (berlen < CS_TCPIP_BUFCHUNK - 1)
887 *(*buf + berlen) = '\0';
888 return berlen ? berlen : 1;
892 #if HAVE_OPENSSL_SSL_H
894 * Return: -1 error, >1 good, len of buffer, ==1 incomplete buffer,
895 * 0=connection closed.
897 int ssl_get(COMSTACK h, char **buf, int *bufsize)
899 tcpip_state *sp = (tcpip_state *)h->cprivate;
901 int tmpi, berlen, rest, req, tomove;
902 int hasread = 0, res;
904 TRC(fprintf(stderr, "ssl_get: bufsize=%d\n", *bufsize));
905 if (sp->altlen) /* switch buffers */
907 TRC(fprintf(stderr, " %d bytes in altbuf (0x%x)\n", sp->altlen,
908 (unsigned) sp->altbuf));
912 *bufsize = sp->altsize;
913 hasread = sp->altlen;
919 while (!(berlen = (*sp->complete)((unsigned char *)*buf, hasread)))
923 if (!(*buf = (char *)xmalloc(*bufsize = CS_TCPIP_BUFCHUNK)))
926 else if (*bufsize - hasread < CS_TCPIP_BUFCHUNK)
927 if (!(*buf =(char *)xrealloc(*buf, *bufsize *= 2)))
929 res = SSL_read (sp->ssl, *buf + hasread, CS_TCPIP_BUFCHUNK);
930 TRC(fprintf(stderr, " SSL_read res=%d, hasread=%d\n", res, hasread));
933 int ssl_err = SSL_get_error(sp->ssl, res);
934 if (ssl_err == SSL_ERROR_WANT_READ)
936 h->io_pending = CS_WANT_READ;
937 yaz_log (LOG_LOG, "SSL_read. want_read");
940 if (ssl_err == SSL_ERROR_WANT_WRITE)
942 h->io_pending = CS_WANT_WRITE;
943 yaz_log (LOG_LOG, "SSL_read. want_write");
948 h->cerrno = CSERRORSSL;
953 TRC (fprintf (stderr, " Out of read loop with hasread=%d, berlen=%d\n",
955 /* move surplus buffer (or everything if we didn't get a BER rec.) */
956 if (hasread > berlen)
958 tomove = req = hasread - berlen;
959 rest = tomove % CS_TCPIP_BUFCHUNK;
961 req += CS_TCPIP_BUFCHUNK - rest;
964 if (!(sp->altbuf = (char *)xmalloc(sp->altsize = req)))
966 } else if (sp->altsize < req)
967 if (!(sp->altbuf =(char *)xrealloc(sp->altbuf, sp->altsize = req)))
969 TRC(fprintf(stderr, " Moving %d bytes to altbuf(0x%x)\n", tomove,
970 (unsigned) sp->altbuf));
971 memcpy(sp->altbuf, *buf + berlen, sp->altlen = tomove);
973 if (berlen < CS_TCPIP_BUFCHUNK - 1)
974 *(*buf + berlen) = '\0';
975 return berlen ? berlen : 1;
981 * In nonblocking mode, you must call again with same buffer while
984 int tcpip_put(COMSTACK h, char *buf, int size)
987 struct tcpip_state *state = (struct tcpip_state *)h->cprivate;
989 TRC(fprintf(stderr, "tcpip_put: size=%d\n", size));
991 if (state->towrite < 0)
993 state->towrite = size;
996 else if (state->towrite != size)
998 h->cerrno = CSWRONGBUF;
1001 while (state->towrite > state->written)
1003 if ((res = send(h->iofile, buf + state->written, size -
1004 state->written, 0)) < 0)
1008 WSAGetLastError() == WSAEWOULDBLOCK
1014 TRC(fprintf(stderr, " Flow control stop\n"));
1015 h->io_pending = CS_WANT_WRITE;
1018 h->cerrno = CSYSERR;
1021 state->written += res;
1022 TRC(fprintf(stderr, " Wrote %d, written=%d, nbytes=%d\n",
1023 res, state->written, size));
1025 state->towrite = state->written = -1;
1026 TRC(fprintf(stderr, " Ok\n"));
1031 #if HAVE_OPENSSL_SSL_H
1033 * Returns 1, 0 or -1
1034 * In nonblocking mode, you must call again with same buffer while
1035 * return value is 1.
1037 int ssl_put(COMSTACK h, char *buf, int size)
1040 struct tcpip_state *state = (struct tcpip_state *)h->cprivate;
1042 TRC(fprintf(stderr, "ssl_put: size=%d\n", size));
1044 if (state->towrite < 0)
1046 state->towrite = size;
1049 else if (state->towrite != size)
1051 h->cerrno = CSWRONGBUF;
1054 while (state->towrite > state->written)
1056 res = SSL_write (state->ssl, buf + state->written,
1057 size - state->written);
1060 int ssl_err = SSL_get_error(state->ssl, res);
1061 if (ssl_err == SSL_ERROR_WANT_READ)
1063 h->io_pending = CS_WANT_READ;
1064 yaz_log (LOG_LOG, "SSL_write. want_read");
1067 if (ssl_err == SSL_ERROR_WANT_WRITE)
1069 h->io_pending = CS_WANT_WRITE;
1070 yaz_log (LOG_LOG, "SSL_write. want_write");
1073 h->cerrno = CSERRORSSL;
1076 state->written += res;
1077 TRC(fprintf(stderr, " Wrote %d, written=%d, nbytes=%d\n",
1078 res, state->written, size));
1080 state->towrite = state->written = -1;
1081 TRC(fprintf(stderr, " Ok\n"));
1086 int tcpip_close(COMSTACK h)
1088 tcpip_state *sp = (struct tcpip_state *)h->cprivate;
1090 TRC(fprintf(stderr, "tcpip_close\n"));
1091 if (h->iofile != -1)
1093 #if HAVE_OPENSSL_SSL_H
1096 SSL_shutdown (sp->ssl);
1100 closesocket(h->iofile);
1107 #if HAVE_OPENSSL_SSL_H
1110 TRC (fprintf(stderr, "SSL_free\n"));
1115 SSL_CTX_free (sp->ctx_alloc);
1122 char *tcpip_addrstr(COMSTACK h)
1124 struct sockaddr_in addr;
1125 tcpip_state *sp = (struct tcpip_state *)h->cprivate;
1126 char *r, *buf = sp->buf;
1128 struct hostent *host;
1131 if (getpeername(h->iofile, (struct sockaddr*) &addr, &len) < 0)
1133 h->cerrno = CSYSERR;
1136 if ((host = gethostbyaddr((char*)&addr.sin_addr, sizeof(addr.sin_addr),
1138 r = (char*) host->h_name;
1140 r = inet_ntoa(addr.sin_addr);
1141 sprintf(buf, "tcp:%s", r);
1142 #if HAVE_OPENSSL_SSL_H
1144 sprintf(buf, "ssl:%s", r);
1149 int static tcpip_set_blocking(COMSTACK p, int blocking)
1153 if (p->blocking == blocking)
1158 if (ioctlsocket(p->iofile, FIONBIO, &flag) < 0)
1161 flag = fcntl(p->iofile, F_GETFL, 0);
1163 flag = flag & ~O_NONBLOCK;
1165 flag = flag | O_NONBLOCK;
1166 if (fcntl(p->iofile, F_SETFL, flag) < 0)
1169 p->blocking = blocking;