2 * Copyright (C) 1995-2005, Index Data ApS
3 * See the file LICENSE for details.
5 * $Id: tcpip.c,v 1.19 2006-08-24 13:25:45 adam Exp $
9 * \brief Implements TCP/IP + SSL COMSTACK.
19 #include <sys/types.h>
31 #include <netinet/in.h>
33 #include <arpa/inet.h>
34 #include <netinet/tcp.h>
38 #include <sys/socket.h>
41 #include <sys/select.h>
47 #if HAVE_OPENSSL_SSL_H
48 #include <openssl/ssl.h>
49 #include <openssl/err.h>
52 #include <yaz/comstack.h>
53 #include <yaz/tcpip.h>
56 static int tcpip_close(COMSTACK h);
57 static int tcpip_put(COMSTACK h, char *buf, int size);
58 static int tcpip_get(COMSTACK h, char **buf, int *bufsize);
59 static int tcpip_connect(COMSTACK h, void *address);
60 static int tcpip_more(COMSTACK h);
61 static int tcpip_rcvconnect(COMSTACK h);
62 static int tcpip_bind(COMSTACK h, void *address, int mode);
63 static int tcpip_listen(COMSTACK h, char *raddr, int *addrlen,
64 int (*check_ip)(void *cd, const char *a, int len, int type),
66 static int tcpip_set_blocking(COMSTACK p, int blocking);
68 #if HAVE_OPENSSL_SSL_H
69 static int ssl_get(COMSTACK h, char **buf, int *bufsize);
70 static int ssl_put(COMSTACK h, char *buf, int size);
73 static COMSTACK tcpip_accept(COMSTACK h);
74 static char *tcpip_addrstr(COMSTACK h);
75 static void *tcpip_straddr(COMSTACK h, const char *str);
84 #define YAZ_SOCKLEN_T int
87 /* this state is used for both SSL and straight TCP/IP */
88 typedef struct tcpip_state
90 char *altbuf; /* alternate buffer for surplus data */
91 int altsize; /* size as xmalloced */
92 int altlen; /* length of data or 0 if none */
94 int written; /* -1 if we aren't writing */
95 int towrite; /* to verify against user input */
96 int (*complete)(const unsigned char *buf, int len); /* length/comple. */
97 struct sockaddr_in addr; /* returned by cs_straddr */
98 char buf[128]; /* returned by cs_addrstr */
99 #if HAVE_OPENSSL_SSL_H
100 SSL_CTX *ctx; /* current CTX. */
101 SSL_CTX *ctx_alloc; /* If =ctx it is owned by CS. If 0 it is not owned */
103 char cert_fname[256];
108 static int tcpip_init (void)
110 static int initialized = 0;
116 requested = MAKEWORD(1, 1);
117 if (WSAStartup(requested, &wd))
124 static int tcpip_init (void)
131 * This function is always called through the cs_create() macro.
132 * s >= 0: socket has already been established for us.
134 COMSTACK tcpip_type(int s, int blocking, int protocol, void *vp)
140 unsigned long tru = 1;
147 if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0)
153 if (!(p = (struct comstack *)xmalloc(sizeof(struct comstack))))
155 if (!(sp = (struct tcpip_state *)(p->cprivate =
156 xmalloc(sizeof(tcpip_state)))))
159 if (!((p->blocking = blocking)&1))
162 if (ioctlsocket(s, FIONBIO, &tru) < 0)
165 if (fcntl(s, F_SETFL, O_NONBLOCK) < 0)
168 signal (SIGPIPE, SIG_IGN);
175 p->type = tcpip_type;
176 p->protocol = (enum oid_proto) protocol;
178 p->f_connect = tcpip_connect;
179 p->f_rcvconnect = tcpip_rcvconnect;
180 p->f_get = tcpip_get;
181 p->f_put = tcpip_put;
182 p->f_close = tcpip_close;
183 p->f_more = tcpip_more;
184 p->f_bind = tcpip_bind;
185 p->f_listen = tcpip_listen;
186 p->f_accept = tcpip_accept;
187 p->f_addrstr = tcpip_addrstr;
188 p->f_straddr = tcpip_straddr;
189 p->f_set_blocking = tcpip_set_blocking;
190 p->max_recv_bytes = 5000000;
192 p->state = new_socket ? CS_ST_UNBND : CS_ST_IDLE; /* state of line */
198 #if HAVE_OPENSSL_SSL_H
199 sp->ctx = sp->ctx_alloc = 0;
201 strcpy(sp->cert_fname, "yaz.pem");
205 sp->altsize = sp->altlen = 0;
206 sp->towrite = sp->written = -1;
207 if (protocol == PROTO_WAIS)
208 sp->complete = completeWAIS;
210 sp->complete = cs_complete_auto;
212 p->timeout = COMSTACK_DEFAULT_TIMEOUT;
213 TRC(fprintf(stderr, "Created new TCPIP comstack\n"));
218 #if HAVE_OPENSSL_SSL_H
220 COMSTACK ssl_type(int s, int blocking, int protocol, void *vp)
225 p = tcpip_type (s, blocking, protocol, 0);
231 sp = (tcpip_state *) p->cprivate;
233 sp->ctx = (SSL_CTX *) vp; /* may be NULL */
235 /* note: we don't handle already opened socket in SSL mode - yet */
240 int tcpip_strtoaddr_ex(const char *str, struct sockaddr_in *add,
245 short int port = default_port;
250 TRC(fprintf(stderr, "tcpip_strtoaddress: %s\n", str ? str : "NULL"));
251 add->sin_family = AF_INET;
252 strncpy(buf, str, 511);
254 if ((p = strchr(buf, '/')))
256 if ((p = strchr(buf, ':')))
261 add->sin_port = htons(port);
262 if (!strcmp("@", buf))
263 add->sin_addr.s_addr = INADDR_ANY;
264 else if ((hp = gethostbyname(buf)))
265 memcpy(&add->sin_addr.s_addr, *hp->h_addr_list,
266 sizeof(struct in_addr));
267 else if ((tmpadd = (unsigned) inet_addr(buf)) != 0)
268 memcpy(&add->sin_addr.s_addr, &tmpadd, sizeof(struct in_addr));
274 void *tcpip_straddr(COMSTACK h, const char *str)
276 tcpip_state *sp = (tcpip_state *)h->cprivate;
279 if (h->protocol == PROTO_HTTP)
282 if (!tcpip_strtoaddr_ex (str, &sp->addr, port))
287 struct sockaddr_in *tcpip_strtoaddr(const char *str)
289 static struct sockaddr_in add;
291 if (!tcpip_strtoaddr_ex (str, &add, 210))
296 int tcpip_more(COMSTACK h)
298 tcpip_state *sp = (tcpip_state *)h->cprivate;
300 return sp->altlen && (*sp->complete)((unsigned char *) sp->altbuf,
305 * connect(2) will block (sometimes) - nothing we can do short of doing
306 * weird things like spawning subprocesses or threading or some weird junk
309 int tcpip_connect(COMSTACK h, void *address)
311 struct sockaddr_in *add = (struct sockaddr_in *)address;
315 YAZ_SOCKLEN_T rbufsize = sizeof(recbuflen);
317 TRC(fprintf(stderr, "tcpip_connect\n"));
319 if (h->state != CS_ST_UNBND)
321 h->cerrno = CSOUTSTATE;
325 /* On Suns, you must set a bigger Receive Buffer BEFORE a call to connect
326 * This gives the connect a chance to negotiate with the other side
329 if ( getsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, &rbufsize ) < 0 )
334 TRC(fprintf( stderr, "Current Size of TCP Receive Buffer= %d\n",
336 recbuflen *= 10; /* lets be optimistic */
337 if ( setsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, rbufsize ) < 0 )
342 if ( getsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, &rbufsize ) )
347 TRC(fprintf( stderr, "New Size of TCP Receive Buffer = %d\n",
350 r = connect(h->iofile, (struct sockaddr *) add, sizeof(*add));
354 if (WSAGetLastError() == WSAEWOULDBLOCK)
356 h->event = CS_CONNECT;
357 h->state = CS_ST_CONNECTING;
358 h->io_pending = CS_WANT_WRITE;
362 if (yaz_errno() == EINPROGRESS)
364 h->event = CS_CONNECT;
365 h->state = CS_ST_CONNECTING;
366 h->io_pending = CS_WANT_WRITE|CS_WANT_READ;
373 h->event = CS_CONNECT;
374 h->state = CS_ST_CONNECTING;
376 return tcpip_rcvconnect (h);
382 int tcpip_rcvconnect(COMSTACK h)
384 #if HAVE_OPENSSL_SSL_H
385 tcpip_state *sp = (tcpip_state *)h->cprivate;
387 TRC(fprintf(stderr, "tcpip_rcvconnect\n"));
389 if (h->state == CS_ST_DATAXFER)
391 if (h->state != CS_ST_CONNECTING)
393 h->cerrno = CSOUTSTATE;
396 #if HAVE_OPENSSL_SSL_H
397 if (h->type == ssl_type && !sp->ctx)
399 SSL_load_error_strings();
400 SSLeay_add_all_algorithms();
402 sp->ctx = sp->ctx_alloc = SSL_CTX_new (SSLv23_method());
405 h->cerrno = CSERRORSSL;
415 sp->ssl = SSL_new (sp->ctx);
416 SSL_set_fd (sp->ssl, h->iofile);
418 res = SSL_connect (sp->ssl);
421 int err = SSL_get_error(sp->ssl, res);
422 if (err == SSL_ERROR_WANT_READ)
424 h->io_pending = CS_WANT_READ;
427 if (err == SSL_ERROR_WANT_WRITE)
429 h->io_pending = CS_WANT_WRITE;
432 h->cerrno = CSERRORSSL;
438 h->state = CS_ST_DATAXFER;
442 #define CERTF "ztest.pem"
443 #define KEYF "ztest.pem"
445 static void tcpip_setsockopt (int fd)
451 if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char*)&set, sizeof(int)))
453 yaz_log(LOG_WARN|LOG_ERRNO, "setsockopt TCP_NODELAY");
455 if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, (char*)&len, sizeof(int)))
457 yaz_log(LOG_WARN|LOG_ERRNO, "setsockopt SNDBUF");
459 if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (char*)&len, sizeof(int)))
461 yaz_log(LOG_WARN|LOG_ERRNO, "setsockopt RCVBUF");
466 static int tcpip_bind(COMSTACK h, void *address, int mode)
468 struct sockaddr *addr = (struct sockaddr *)address;
472 unsigned long one = 1;
475 #if HAVE_OPENSSL_SSL_H
476 tcpip_state *sp = (tcpip_state *)h->cprivate;
477 if (h->type == ssl_type && !sp->ctx)
479 SSL_load_error_strings();
480 SSLeay_add_all_algorithms();
482 sp->ctx = sp->ctx_alloc = SSL_CTX_new (SSLv23_method());
485 h->cerrno = CSERRORSSL;
494 res = SSL_CTX_use_certificate_chain_file(sp->ctx, sp->cert_fname);
497 ERR_print_errors_fp(stderr);
500 res = SSL_CTX_use_PrivateKey_file (sp->ctx, sp->cert_fname,
504 ERR_print_errors_fp(stderr);
507 res = SSL_CTX_check_private_key (sp->ctx);
510 ERR_print_errors_fp(stderr);
514 TRC (fprintf (stderr, "ssl_bind\n"));
518 TRC (fprintf (stderr, "tcpip_bind\n"));
521 TRC (fprintf (stderr, "tcpip_bind\n"));
524 if (setsockopt(h->iofile, SOL_SOCKET, SO_REUSEADDR, (char*)
525 &one, sizeof(one)) < 0)
531 tcpip_setsockopt(h->iofile);
532 if (bind(h->iofile, addr, sizeof(struct sockaddr_in)))
537 /* Allow a maximum-sized backlog of waiting-to-connect clients */
538 if (mode == CS_SERVER && listen(h->iofile, SOMAXCONN) < 0)
543 h->state = CS_ST_IDLE;
544 h->event = CS_LISTEN;
548 int tcpip_listen(COMSTACK h, char *raddr, int *addrlen,
549 int (*check_ip)(void *cd, const char *a, int len, int t),
552 struct sockaddr_in addr;
553 YAZ_SOCKLEN_T len = sizeof(addr);
555 TRC(fprintf(stderr, "tcpip_listen pid=%d\n", getpid()));
556 if (h->state != CS_ST_IDLE)
558 h->cerrno = CSOUTSTATE;
561 h->newfd = accept(h->iofile, (struct sockaddr*)&addr, &len);
566 WSAGetLastError() == WSAEWOULDBLOCK
568 yaz_errno() == EWOULDBLOCK
570 #if EAGAIN != EWOULDBLOCK
571 || yaz_errno() == EAGAIN
576 h->cerrno = CSNODATA;
581 if (addrlen && (size_t) (*addrlen) >= sizeof(struct sockaddr_in))
582 memcpy(raddr, &addr, *addrlen = sizeof(struct sockaddr_in));
585 if (check_ip && (*check_ip)(cd, (const char *) &addr,
586 sizeof(addr), AF_INET))
590 closesocket(h->newfd);
597 h->state = CS_ST_INCON;
598 tcpip_setsockopt (h->newfd);
602 COMSTACK tcpip_accept(COMSTACK h)
605 tcpip_state *state, *st = (tcpip_state *)h->cprivate;
607 unsigned long tru = 1;
610 TRC(fprintf(stderr, "tcpip_accept\n"));
611 if (h->state == CS_ST_INCON)
613 if (!(cnew = (COMSTACK)xmalloc(sizeof(*cnew))))
617 closesocket(h->newfd);
624 memcpy(cnew, h, sizeof(*h));
625 cnew->iofile = h->newfd;
626 cnew->io_pending = 0;
627 if (!(state = (tcpip_state *)
628 (cnew->cprivate = xmalloc(sizeof(tcpip_state)))))
634 closesocket(h->newfd);
642 if (!(cnew->blocking&1) &&
644 (ioctlsocket(cnew->iofile, FIONBIO, &tru) < 0)
646 (fcntl(cnew->iofile, F_SETFL, O_NONBLOCK) < 0)
654 closesocket(h->newfd);
666 state->altsize = state->altlen = 0;
667 state->towrite = state->written = -1;
668 state->complete = st->complete;
669 cnew->state = CS_ST_ACCEPT;
670 h->state = CS_ST_IDLE;
672 #if HAVE_OPENSSL_SSL_H
673 state->ctx = st->ctx;
674 state->ctx_alloc = 0;
675 state->ssl = st->ssl;
678 state->ssl = SSL_new (state->ctx);
679 SSL_set_fd (state->ssl, cnew->iofile);
684 if (h->state == CS_ST_ACCEPT)
686 #if HAVE_OPENSSL_SSL_H
687 tcpip_state *state = (tcpip_state *)h->cprivate;
690 int res = SSL_accept (state->ssl);
691 TRC(fprintf(stderr, "SSL_accept\n"));
694 int err = SSL_get_error(state->ssl, res);
695 if (err == SSL_ERROR_WANT_READ)
697 h->io_pending = CS_WANT_READ;
700 if (err == SSL_ERROR_WANT_WRITE)
702 h->io_pending = CS_WANT_WRITE;
713 h->cerrno = CSOUTSTATE;
717 h->state = CS_ST_DATAXFER;
722 #define CS_TCPIP_BUFCHUNK 4096
725 * Return: -1 error, >1 good, len of buffer, ==1 incomplete buffer,
726 * 0=connection closed.
728 int tcpip_get(COMSTACK h, char **buf, int *bufsize)
730 tcpip_state *sp = (tcpip_state *)h->cprivate;
732 int tmpi, berlen, rest, req, tomove;
733 int hasread = 0, res;
735 TRC(fprintf(stderr, "tcpip_get: bufsize=%d\n", *bufsize));
736 if (sp->altlen) /* switch buffers */
738 TRC(fprintf(stderr, " %d bytes in altbuf (0x%x)\n", sp->altlen,
739 (unsigned) sp->altbuf));
743 *bufsize = sp->altsize;
744 hasread = sp->altlen;
750 while (!(berlen = (*sp->complete)((unsigned char *)*buf, hasread)))
754 if (!(*buf = (char *)xmalloc(*bufsize = CS_TCPIP_BUFCHUNK)))
760 else if (*bufsize - hasread < CS_TCPIP_BUFCHUNK)
761 if (!(*buf =(char *)xrealloc(*buf, *bufsize *= 2)))
768 /* unfortunatly, sun sometimes forgets to set errno in recv
769 when EWOULDBLOCK etc. would be required (res = -1) */
771 res = recv(h->iofile, *buf + hasread, CS_TCPIP_BUFCHUNK, 0);
772 TRC(fprintf(stderr, " recv res=%d, hasread=%d\n", res, hasread));
775 TRC(fprintf(stderr, " recv errno=%d, (%s)\n", yaz_errno(),
776 strerror(yaz_errno())));
778 if (WSAGetLastError() == WSAEWOULDBLOCK)
780 h->io_pending = CS_WANT_READ;
786 if (yaz_errno() == EWOULDBLOCK
788 #if EAGAIN != EWOULDBLOCK
789 || yaz_errno() == EAGAIN
792 || yaz_errno() == EINPROGRESS
794 || yaz_errno() == ENOENT /* Sun's sometimes set errno to this */
798 h->io_pending = CS_WANT_READ;
801 else if (yaz_errno() == 0)
810 if (hasread > h->max_recv_bytes)
812 h->cerrno = CSBUFSIZE;
816 TRC (fprintf (stderr, " Out of read loop with hasread=%d, berlen=%d\n",
818 /* move surplus buffer (or everything if we didn't get a BER rec.) */
819 if (hasread > berlen)
821 tomove = req = hasread - berlen;
822 rest = tomove % CS_TCPIP_BUFCHUNK;
824 req += CS_TCPIP_BUFCHUNK - rest;
827 if (!(sp->altbuf = (char *)xmalloc(sp->altsize = req)))
829 } else if (sp->altsize < req)
830 if (!(sp->altbuf =(char *)xrealloc(sp->altbuf, sp->altsize = req)))
832 TRC(fprintf(stderr, " Moving %d bytes to altbuf(0x%x)\n", tomove,
833 (unsigned) sp->altbuf));
834 memcpy(sp->altbuf, *buf + berlen, sp->altlen = tomove);
836 if (berlen < CS_TCPIP_BUFCHUNK - 1)
837 *(*buf + berlen) = '\0';
838 return berlen ? berlen : 1;
842 #if HAVE_OPENSSL_SSL_H
844 * Return: -1 error, >1 good, len of buffer, ==1 incomplete buffer,
845 * 0=connection closed.
847 int ssl_get(COMSTACK h, char **buf, int *bufsize)
849 tcpip_state *sp = (tcpip_state *)h->cprivate;
851 int tmpi, berlen, rest, req, tomove;
852 int hasread = 0, res;
854 TRC(fprintf(stderr, "ssl_get: bufsize=%d\n", *bufsize));
855 if (sp->altlen) /* switch buffers */
857 TRC(fprintf(stderr, " %d bytes in altbuf (0x%x)\n", sp->altlen,
858 (unsigned) sp->altbuf));
862 *bufsize = sp->altsize;
863 hasread = sp->altlen;
869 while (!(berlen = (*sp->complete)((unsigned char *)*buf, hasread)))
873 if (!(*buf = (char *)xmalloc(*bufsize = CS_TCPIP_BUFCHUNK)))
876 else if (*bufsize - hasread < CS_TCPIP_BUFCHUNK)
877 if (!(*buf =(char *)xrealloc(*buf, *bufsize *= 2)))
879 res = SSL_read (sp->ssl, *buf + hasread, CS_TCPIP_BUFCHUNK);
880 TRC(fprintf(stderr, " SSL_read res=%d, hasread=%d\n", res, hasread));
883 int ssl_err = SSL_get_error(sp->ssl, res);
884 if (ssl_err == SSL_ERROR_WANT_READ)
886 h->io_pending = CS_WANT_READ;
889 if (ssl_err == SSL_ERROR_WANT_WRITE)
891 h->io_pending = CS_WANT_WRITE;
896 h->cerrno = CSERRORSSL;
901 TRC (fprintf (stderr, " Out of read loop with hasread=%d, berlen=%d\n",
903 /* move surplus buffer (or everything if we didn't get a BER rec.) */
904 if (hasread > berlen)
906 tomove = req = hasread - berlen;
907 rest = tomove % CS_TCPIP_BUFCHUNK;
909 req += CS_TCPIP_BUFCHUNK - rest;
912 if (!(sp->altbuf = (char *)xmalloc(sp->altsize = req)))
914 } else if (sp->altsize < req)
915 if (!(sp->altbuf =(char *)xrealloc(sp->altbuf, sp->altsize = req)))
917 TRC(fprintf(stderr, " Moving %d bytes to altbuf(0x%x)\n", tomove,
918 (unsigned) sp->altbuf));
919 memcpy(sp->altbuf, *buf + berlen, sp->altlen = tomove);
921 if (berlen < CS_TCPIP_BUFCHUNK - 1)
922 *(*buf + berlen) = '\0';
923 return berlen ? berlen : 1;
929 * In nonblocking mode, you must call again with same buffer while
932 int tcpip_put(COMSTACK h, char *buf, int size)
935 struct tcpip_state *state = (struct tcpip_state *)h->cprivate;
937 TRC(fprintf(stderr, "tcpip_put: size=%d\n", size));
940 if (state->towrite < 0)
942 state->towrite = size;
945 else if (state->towrite != size)
947 h->cerrno = CSWRONGBUF;
950 while (state->towrite > state->written)
953 send(h->iofile, buf + state->written, size -
964 WSAGetLastError() == WSAEWOULDBLOCK
966 yaz_errno() == EWOULDBLOCK
968 #if EAGAIN != EWOULDBLOCK
969 || yaz_errno() == EAGAIN
973 || yaz_errno() == ENOENT /* Sun's sometimes set errno to this value! */
975 || yaz_errno() == EINPROGRESS
979 TRC(fprintf(stderr, " Flow control stop\n"));
980 h->io_pending = CS_WANT_WRITE;
986 state->written += res;
987 TRC(fprintf(stderr, " Wrote %d, written=%d, nbytes=%d\n",
988 res, state->written, size));
990 state->towrite = state->written = -1;
991 TRC(fprintf(stderr, " Ok\n"));
996 #if HAVE_OPENSSL_SSL_H
999 * In nonblocking mode, you must call again with same buffer while
1000 * return value is 1.
1002 int ssl_put(COMSTACK h, char *buf, int size)
1005 struct tcpip_state *state = (struct tcpip_state *)h->cprivate;
1007 TRC(fprintf(stderr, "ssl_put: size=%d\n", size));
1010 if (state->towrite < 0)
1012 state->towrite = size;
1015 else if (state->towrite != size)
1017 h->cerrno = CSWRONGBUF;
1020 while (state->towrite > state->written)
1022 res = SSL_write (state->ssl, buf + state->written,
1023 size - state->written);
1026 int ssl_err = SSL_get_error(state->ssl, res);
1027 if (ssl_err == SSL_ERROR_WANT_READ)
1029 h->io_pending = CS_WANT_READ;
1032 if (ssl_err == SSL_ERROR_WANT_WRITE)
1034 h->io_pending = CS_WANT_WRITE;
1037 h->cerrno = CSERRORSSL;
1040 state->written += res;
1041 TRC(fprintf(stderr, " Wrote %d, written=%d, nbytes=%d\n",
1042 res, state->written, size));
1044 state->towrite = state->written = -1;
1045 TRC(fprintf(stderr, " Ok\n"));
1050 int tcpip_close(COMSTACK h)
1052 tcpip_state *sp = (struct tcpip_state *)h->cprivate;
1054 TRC(fprintf(stderr, "tcpip_close\n"));
1055 if (h->iofile != -1)
1057 #if HAVE_OPENSSL_SSL_H
1060 SSL_shutdown (sp->ssl);
1064 closesocket(h->iofile);
1071 #if HAVE_OPENSSL_SSL_H
1074 TRC (fprintf(stderr, "SSL_free\n"));
1079 SSL_CTX_free (sp->ctx_alloc);
1086 char *tcpip_addrstr(COMSTACK h)
1088 struct sockaddr_in addr;
1089 tcpip_state *sp = (struct tcpip_state *)h->cprivate;
1090 char *r = 0, *buf = sp->buf;
1092 struct hostent *host;
1095 if (getpeername(h->iofile, (struct sockaddr*) &addr, &len) < 0)
1097 h->cerrno = CSYSERR;
1100 if (!(h->blocking&2)) {
1101 if ((host = gethostbyaddr((char*)&addr.sin_addr, sizeof(addr.sin_addr),
1103 r = (char*) host->h_name;
1106 r = inet_ntoa(addr.sin_addr);
1107 if (h->protocol == PROTO_HTTP)
1108 sprintf(buf, "http:%s", r);
1110 sprintf(buf, "tcp:%s", r);
1111 #if HAVE_OPENSSL_SSL_H
1114 if (h->protocol == PROTO_HTTP)
1115 sprintf(buf, "https:%s", r);
1117 sprintf(buf, "ssl:%s", r);
1123 int static tcpip_set_blocking(COMSTACK p, int blocking)
1127 if (p->blocking == blocking)
1131 if (ioctlsocket(p->iofile, FIONBIO, &flag) < 0)
1134 flag = fcntl(p->iofile, F_GETFL, 0);
1136 flag = flag & ~O_NONBLOCK;
1138 flag = flag | O_NONBLOCK;
1139 if (fcntl(p->iofile, F_SETFL, flag) < 0)
1142 p->blocking = blocking;
1146 #if HAVE_OPENSSL_SSL_H
1147 int cs_set_ssl_ctx(COMSTACK cs, void *ctx)
1149 struct tcpip_state *sp;
1150 if (!cs || cs->type != ssl_type)
1152 sp = (struct tcpip_state *) cs->cprivate;
1155 sp->ctx = (SSL_CTX *) ctx;
1159 void *cs_get_ssl(COMSTACK cs)
1161 struct tcpip_state *sp;
1162 if (!cs || cs->type != ssl_type)
1164 sp = (struct tcpip_state *) cs->cprivate;
1168 int cs_set_ssl_certificate_file(COMSTACK cs, const char *fname)
1170 struct tcpip_state *sp;
1171 if (!cs || cs->type != ssl_type)
1173 sp = (struct tcpip_state *) cs->cprivate;
1174 strncpy(sp->cert_fname, fname, sizeof(sp->cert_fname)-1);
1175 sp->cert_fname[sizeof(sp->cert_fname)-1] = '\0';
1179 int cs_get_peer_certificate_x509(COMSTACK cs, char **buf, int *len)
1181 SSL *ssl = (SSL *) cs_get_ssl(cs);
1184 X509 *server_cert = SSL_get_peer_certificate (ssl);
1187 BIO *bio = BIO_new(BIO_s_mem());
1189 /* get PEM buffer in memory */
1190 PEM_write_bio_X509(bio, server_cert);
1191 *len = BIO_get_mem_data(bio, &pem_buf);
1192 *buf = (char *) xmalloc(*len);
1193 memcpy(*buf, pem_buf, *len);
1201 int cs_set_ssl_ctx(COMSTACK cs, void *ctx)
1206 void *cs_get_ssl(COMSTACK cs)
1211 int cs_get_peer_certificate_x509(COMSTACK cs, char **buf, int *len)
1216 int cs_set_ssl_certificate_file(COMSTACK cs, const char *fname)
1225 * indent-tabs-mode: nil
1227 * vim: shiftwidth=4 tabstop=8 expandtab