2 * Copyright (C) 1995-2005, Index Data ApS
3 * See the file LICENSE for details.
5 * $Id: tcpip.c,v 1.21 2006-08-30 12:47:23 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,
244 #if HAVE_GETHOSTBYNAME_R
250 short int port = default_port;
252 unsigned long tmpadd;
259 TRC(fprintf(stderr, "tcpip_strtoaddress: %s\n", str ? str : "NULL"));
260 add->sin_family = AF_INET;
261 strncpy(buf, str, 511);
263 if ((p = strchr(buf, '/')))
265 if ((p = strchr(buf, ':')))
270 add->sin_port = htons(port);
271 if (!strcmp("@", buf))
273 add->sin_addr.s_addr = INADDR_ANY;
275 else if ((tmpadd = inet_addr(buf)) != INADDR_NONE)
277 memcpy(&add->sin_addr.s_addr, &tmpadd, sizeof(struct in_addr));
279 #if HAVE_GETHOSTBYNAME_R
280 else if (gethostbyname_r(buf, &h, hbuf, sizeof(hbuf), &hp, &h_error) == 0)
282 memcpy(&add->sin_addr.s_addr, *hp->h_addr_list,
283 sizeof(struct in_addr));
286 else if ((hp = gethostbyname(buf)))
288 memcpy(&add->sin_addr.s_addr, *hp->h_addr_list,
289 sizeof(struct in_addr));
297 void *tcpip_straddr(COMSTACK h, const char *str)
299 tcpip_state *sp = (tcpip_state *)h->cprivate;
302 if (h->protocol == PROTO_HTTP)
305 if (!tcpip_strtoaddr_ex (str, &sp->addr, port))
310 struct sockaddr_in *tcpip_strtoaddr(const char *str)
312 static struct sockaddr_in add;
314 if (!tcpip_strtoaddr_ex (str, &add, 210))
319 int tcpip_more(COMSTACK h)
321 tcpip_state *sp = (tcpip_state *)h->cprivate;
323 return sp->altlen && (*sp->complete)((unsigned char *) sp->altbuf,
328 * connect(2) will block (sometimes) - nothing we can do short of doing
329 * weird things like spawning subprocesses or threading or some weird junk
332 int tcpip_connect(COMSTACK h, void *address)
334 struct sockaddr_in *add = (struct sockaddr_in *)address;
338 YAZ_SOCKLEN_T rbufsize = sizeof(recbuflen);
340 TRC(fprintf(stderr, "tcpip_connect\n"));
342 if (h->state != CS_ST_UNBND)
344 h->cerrno = CSOUTSTATE;
348 /* On Suns, you must set a bigger Receive Buffer BEFORE a call to connect
349 * This gives the connect a chance to negotiate with the other side
352 if ( getsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, &rbufsize ) < 0 )
357 TRC(fprintf( stderr, "Current Size of TCP Receive Buffer= %d\n",
359 recbuflen *= 10; /* lets be optimistic */
360 if ( setsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, rbufsize ) < 0 )
365 if ( getsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, &rbufsize ) )
370 TRC(fprintf( stderr, "New Size of TCP Receive Buffer = %d\n",
373 r = connect(h->iofile, (struct sockaddr *) add, sizeof(*add));
377 if (WSAGetLastError() == WSAEWOULDBLOCK)
379 h->event = CS_CONNECT;
380 h->state = CS_ST_CONNECTING;
381 h->io_pending = CS_WANT_WRITE;
385 if (yaz_errno() == EINPROGRESS)
387 h->event = CS_CONNECT;
388 h->state = CS_ST_CONNECTING;
389 h->io_pending = CS_WANT_WRITE|CS_WANT_READ;
396 h->event = CS_CONNECT;
397 h->state = CS_ST_CONNECTING;
399 return tcpip_rcvconnect (h);
405 int tcpip_rcvconnect(COMSTACK h)
407 #if HAVE_OPENSSL_SSL_H
408 tcpip_state *sp = (tcpip_state *)h->cprivate;
410 TRC(fprintf(stderr, "tcpip_rcvconnect\n"));
412 if (h->state == CS_ST_DATAXFER)
414 if (h->state != CS_ST_CONNECTING)
416 h->cerrno = CSOUTSTATE;
419 #if HAVE_OPENSSL_SSL_H
420 if (h->type == ssl_type && !sp->ctx)
422 SSL_load_error_strings();
423 SSLeay_add_all_algorithms();
425 sp->ctx = sp->ctx_alloc = SSL_CTX_new (SSLv23_method());
428 h->cerrno = CSERRORSSL;
438 sp->ssl = SSL_new (sp->ctx);
439 SSL_set_fd (sp->ssl, h->iofile);
441 res = SSL_connect (sp->ssl);
444 int err = SSL_get_error(sp->ssl, res);
445 if (err == SSL_ERROR_WANT_READ)
447 h->io_pending = CS_WANT_READ;
450 if (err == SSL_ERROR_WANT_WRITE)
452 h->io_pending = CS_WANT_WRITE;
455 h->cerrno = CSERRORSSL;
461 h->state = CS_ST_DATAXFER;
465 #define CERTF "ztest.pem"
466 #define KEYF "ztest.pem"
468 static void tcpip_setsockopt (int fd)
474 if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char*)&set, sizeof(int)))
476 yaz_log(LOG_WARN|LOG_ERRNO, "setsockopt TCP_NODELAY");
478 if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, (char*)&len, sizeof(int)))
480 yaz_log(LOG_WARN|LOG_ERRNO, "setsockopt SNDBUF");
482 if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (char*)&len, sizeof(int)))
484 yaz_log(LOG_WARN|LOG_ERRNO, "setsockopt RCVBUF");
489 static int tcpip_bind(COMSTACK h, void *address, int mode)
491 struct sockaddr *addr = (struct sockaddr *)address;
495 unsigned long one = 1;
498 #if HAVE_OPENSSL_SSL_H
499 tcpip_state *sp = (tcpip_state *)h->cprivate;
500 if (h->type == ssl_type && !sp->ctx)
502 SSL_load_error_strings();
503 SSLeay_add_all_algorithms();
505 sp->ctx = sp->ctx_alloc = SSL_CTX_new (SSLv23_method());
508 h->cerrno = CSERRORSSL;
517 res = SSL_CTX_use_certificate_chain_file(sp->ctx, sp->cert_fname);
520 ERR_print_errors_fp(stderr);
523 res = SSL_CTX_use_PrivateKey_file (sp->ctx, sp->cert_fname,
527 ERR_print_errors_fp(stderr);
530 res = SSL_CTX_check_private_key (sp->ctx);
533 ERR_print_errors_fp(stderr);
537 TRC (fprintf (stderr, "ssl_bind\n"));
541 TRC (fprintf (stderr, "tcpip_bind\n"));
544 TRC (fprintf (stderr, "tcpip_bind\n"));
547 if (setsockopt(h->iofile, SOL_SOCKET, SO_REUSEADDR, (char*)
548 &one, sizeof(one)) < 0)
554 tcpip_setsockopt(h->iofile);
555 if (bind(h->iofile, addr, sizeof(struct sockaddr_in)))
560 /* Allow a maximum-sized backlog of waiting-to-connect clients */
561 if (mode == CS_SERVER && listen(h->iofile, SOMAXCONN) < 0)
566 h->state = CS_ST_IDLE;
567 h->event = CS_LISTEN;
571 int tcpip_listen(COMSTACK h, char *raddr, int *addrlen,
572 int (*check_ip)(void *cd, const char *a, int len, int t),
575 struct sockaddr_in addr;
576 YAZ_SOCKLEN_T len = sizeof(addr);
578 TRC(fprintf(stderr, "tcpip_listen pid=%d\n", getpid()));
579 if (h->state != CS_ST_IDLE)
581 h->cerrno = CSOUTSTATE;
584 h->newfd = accept(h->iofile, (struct sockaddr*)&addr, &len);
589 WSAGetLastError() == WSAEWOULDBLOCK
591 yaz_errno() == EWOULDBLOCK
593 #if EAGAIN != EWOULDBLOCK
594 || yaz_errno() == EAGAIN
599 h->cerrno = CSNODATA;
604 if (addrlen && (size_t) (*addrlen) >= sizeof(struct sockaddr_in))
605 memcpy(raddr, &addr, *addrlen = sizeof(struct sockaddr_in));
608 if (check_ip && (*check_ip)(cd, (const char *) &addr,
609 sizeof(addr), AF_INET))
613 closesocket(h->newfd);
620 h->state = CS_ST_INCON;
621 tcpip_setsockopt (h->newfd);
625 COMSTACK tcpip_accept(COMSTACK h)
628 tcpip_state *state, *st = (tcpip_state *)h->cprivate;
630 unsigned long tru = 1;
633 TRC(fprintf(stderr, "tcpip_accept\n"));
634 if (h->state == CS_ST_INCON)
636 if (!(cnew = (COMSTACK)xmalloc(sizeof(*cnew))))
640 closesocket(h->newfd);
647 memcpy(cnew, h, sizeof(*h));
648 cnew->iofile = h->newfd;
649 cnew->io_pending = 0;
650 if (!(state = (tcpip_state *)
651 (cnew->cprivate = xmalloc(sizeof(tcpip_state)))))
657 closesocket(h->newfd);
665 if (!(cnew->blocking&1) &&
667 (ioctlsocket(cnew->iofile, FIONBIO, &tru) < 0)
669 (fcntl(cnew->iofile, F_SETFL, O_NONBLOCK) < 0)
677 closesocket(h->newfd);
689 state->altsize = state->altlen = 0;
690 state->towrite = state->written = -1;
691 state->complete = st->complete;
692 cnew->state = CS_ST_ACCEPT;
693 h->state = CS_ST_IDLE;
695 #if HAVE_OPENSSL_SSL_H
696 state->ctx = st->ctx;
697 state->ctx_alloc = 0;
698 state->ssl = st->ssl;
701 state->ssl = SSL_new (state->ctx);
702 SSL_set_fd (state->ssl, cnew->iofile);
707 if (h->state == CS_ST_ACCEPT)
709 #if HAVE_OPENSSL_SSL_H
710 tcpip_state *state = (tcpip_state *)h->cprivate;
713 int res = SSL_accept (state->ssl);
714 TRC(fprintf(stderr, "SSL_accept\n"));
717 int err = SSL_get_error(state->ssl, res);
718 if (err == SSL_ERROR_WANT_READ)
720 h->io_pending = CS_WANT_READ;
723 if (err == SSL_ERROR_WANT_WRITE)
725 h->io_pending = CS_WANT_WRITE;
736 h->cerrno = CSOUTSTATE;
740 h->state = CS_ST_DATAXFER;
745 #define CS_TCPIP_BUFCHUNK 4096
748 * Return: -1 error, >1 good, len of buffer, ==1 incomplete buffer,
749 * 0=connection closed.
751 int tcpip_get(COMSTACK h, char **buf, int *bufsize)
753 tcpip_state *sp = (tcpip_state *)h->cprivate;
755 int tmpi, berlen, rest, req, tomove;
756 int hasread = 0, res;
758 TRC(fprintf(stderr, "tcpip_get: bufsize=%d\n", *bufsize));
759 if (sp->altlen) /* switch buffers */
761 TRC(fprintf(stderr, " %d bytes in altbuf (0x%x)\n", sp->altlen,
762 (unsigned) sp->altbuf));
766 *bufsize = sp->altsize;
767 hasread = sp->altlen;
773 while (!(berlen = (*sp->complete)((unsigned char *)*buf, hasread)))
777 if (!(*buf = (char *)xmalloc(*bufsize = CS_TCPIP_BUFCHUNK)))
783 else if (*bufsize - hasread < CS_TCPIP_BUFCHUNK)
784 if (!(*buf =(char *)xrealloc(*buf, *bufsize *= 2)))
791 /* unfortunatly, sun sometimes forgets to set errno in recv
792 when EWOULDBLOCK etc. would be required (res = -1) */
794 res = recv(h->iofile, *buf + hasread, CS_TCPIP_BUFCHUNK, 0);
795 TRC(fprintf(stderr, " recv res=%d, hasread=%d\n", res, hasread));
798 TRC(fprintf(stderr, " recv errno=%d, (%s)\n", yaz_errno(),
799 strerror(yaz_errno())));
801 if (WSAGetLastError() == WSAEWOULDBLOCK)
803 h->io_pending = CS_WANT_READ;
809 if (yaz_errno() == EWOULDBLOCK
811 #if EAGAIN != EWOULDBLOCK
812 || yaz_errno() == EAGAIN
815 || yaz_errno() == EINPROGRESS
817 || yaz_errno() == ENOENT /* Sun's sometimes set errno to this */
821 h->io_pending = CS_WANT_READ;
824 else if (yaz_errno() == 0)
833 if (hasread > h->max_recv_bytes)
835 h->cerrno = CSBUFSIZE;
839 TRC (fprintf (stderr, " Out of read loop with hasread=%d, berlen=%d\n",
841 /* move surplus buffer (or everything if we didn't get a BER rec.) */
842 if (hasread > berlen)
844 tomove = req = hasread - berlen;
845 rest = tomove % CS_TCPIP_BUFCHUNK;
847 req += CS_TCPIP_BUFCHUNK - rest;
850 if (!(sp->altbuf = (char *)xmalloc(sp->altsize = req)))
852 } else if (sp->altsize < req)
853 if (!(sp->altbuf =(char *)xrealloc(sp->altbuf, sp->altsize = req)))
855 TRC(fprintf(stderr, " Moving %d bytes to altbuf(0x%x)\n", tomove,
856 (unsigned) sp->altbuf));
857 memcpy(sp->altbuf, *buf + berlen, sp->altlen = tomove);
859 if (berlen < CS_TCPIP_BUFCHUNK - 1)
860 *(*buf + berlen) = '\0';
861 return berlen ? berlen : 1;
865 #if HAVE_OPENSSL_SSL_H
867 * Return: -1 error, >1 good, len of buffer, ==1 incomplete buffer,
868 * 0=connection closed.
870 int ssl_get(COMSTACK h, char **buf, int *bufsize)
872 tcpip_state *sp = (tcpip_state *)h->cprivate;
874 int tmpi, berlen, rest, req, tomove;
875 int hasread = 0, res;
877 TRC(fprintf(stderr, "ssl_get: bufsize=%d\n", *bufsize));
878 if (sp->altlen) /* switch buffers */
880 TRC(fprintf(stderr, " %d bytes in altbuf (0x%x)\n", sp->altlen,
881 (unsigned) sp->altbuf));
885 *bufsize = sp->altsize;
886 hasread = sp->altlen;
892 while (!(berlen = (*sp->complete)((unsigned char *)*buf, hasread)))
896 if (!(*buf = (char *)xmalloc(*bufsize = CS_TCPIP_BUFCHUNK)))
899 else if (*bufsize - hasread < CS_TCPIP_BUFCHUNK)
900 if (!(*buf =(char *)xrealloc(*buf, *bufsize *= 2)))
902 res = SSL_read (sp->ssl, *buf + hasread, CS_TCPIP_BUFCHUNK);
903 TRC(fprintf(stderr, " SSL_read res=%d, hasread=%d\n", res, hasread));
906 int ssl_err = SSL_get_error(sp->ssl, res);
907 if (ssl_err == SSL_ERROR_WANT_READ)
909 h->io_pending = CS_WANT_READ;
912 if (ssl_err == SSL_ERROR_WANT_WRITE)
914 h->io_pending = CS_WANT_WRITE;
919 h->cerrno = CSERRORSSL;
924 TRC (fprintf (stderr, " Out of read loop with hasread=%d, berlen=%d\n",
926 /* move surplus buffer (or everything if we didn't get a BER rec.) */
927 if (hasread > berlen)
929 tomove = req = hasread - berlen;
930 rest = tomove % CS_TCPIP_BUFCHUNK;
932 req += CS_TCPIP_BUFCHUNK - rest;
935 if (!(sp->altbuf = (char *)xmalloc(sp->altsize = req)))
937 } else if (sp->altsize < req)
938 if (!(sp->altbuf =(char *)xrealloc(sp->altbuf, sp->altsize = req)))
940 TRC(fprintf(stderr, " Moving %d bytes to altbuf(0x%x)\n", tomove,
941 (unsigned) sp->altbuf));
942 memcpy(sp->altbuf, *buf + berlen, sp->altlen = tomove);
944 if (berlen < CS_TCPIP_BUFCHUNK - 1)
945 *(*buf + berlen) = '\0';
946 return berlen ? berlen : 1;
952 * In nonblocking mode, you must call again with same buffer while
955 int tcpip_put(COMSTACK h, char *buf, int size)
958 struct tcpip_state *state = (struct tcpip_state *)h->cprivate;
960 TRC(fprintf(stderr, "tcpip_put: size=%d\n", size));
963 if (state->towrite < 0)
965 state->towrite = size;
968 else if (state->towrite != size)
970 h->cerrno = CSWRONGBUF;
973 while (state->towrite > state->written)
976 send(h->iofile, buf + state->written, size -
987 WSAGetLastError() == WSAEWOULDBLOCK
989 yaz_errno() == EWOULDBLOCK
991 #if EAGAIN != EWOULDBLOCK
992 || yaz_errno() == EAGAIN
996 || yaz_errno() == ENOENT /* Sun's sometimes set errno to this value! */
998 || yaz_errno() == EINPROGRESS
1002 TRC(fprintf(stderr, " Flow control stop\n"));
1003 h->io_pending = CS_WANT_WRITE;
1006 h->cerrno = CSYSERR;
1009 state->written += res;
1010 TRC(fprintf(stderr, " Wrote %d, written=%d, nbytes=%d\n",
1011 res, state->written, size));
1013 state->towrite = state->written = -1;
1014 TRC(fprintf(stderr, " Ok\n"));
1019 #if HAVE_OPENSSL_SSL_H
1021 * Returns 1, 0 or -1
1022 * In nonblocking mode, you must call again with same buffer while
1023 * return value is 1.
1025 int ssl_put(COMSTACK h, char *buf, int size)
1028 struct tcpip_state *state = (struct tcpip_state *)h->cprivate;
1030 TRC(fprintf(stderr, "ssl_put: size=%d\n", size));
1033 if (state->towrite < 0)
1035 state->towrite = size;
1038 else if (state->towrite != size)
1040 h->cerrno = CSWRONGBUF;
1043 while (state->towrite > state->written)
1045 res = SSL_write (state->ssl, buf + state->written,
1046 size - state->written);
1049 int ssl_err = SSL_get_error(state->ssl, res);
1050 if (ssl_err == SSL_ERROR_WANT_READ)
1052 h->io_pending = CS_WANT_READ;
1055 if (ssl_err == SSL_ERROR_WANT_WRITE)
1057 h->io_pending = CS_WANT_WRITE;
1060 h->cerrno = CSERRORSSL;
1063 state->written += res;
1064 TRC(fprintf(stderr, " Wrote %d, written=%d, nbytes=%d\n",
1065 res, state->written, size));
1067 state->towrite = state->written = -1;
1068 TRC(fprintf(stderr, " Ok\n"));
1073 int tcpip_close(COMSTACK h)
1075 tcpip_state *sp = (struct tcpip_state *)h->cprivate;
1077 TRC(fprintf(stderr, "tcpip_close\n"));
1078 if (h->iofile != -1)
1080 #if HAVE_OPENSSL_SSL_H
1083 SSL_shutdown (sp->ssl);
1087 closesocket(h->iofile);
1094 #if HAVE_OPENSSL_SSL_H
1097 TRC (fprintf(stderr, "SSL_free\n"));
1102 SSL_CTX_free (sp->ctx_alloc);
1109 char *tcpip_addrstr(COMSTACK h)
1111 struct sockaddr_in addr;
1112 tcpip_state *sp = (struct tcpip_state *)h->cprivate;
1113 char *r = 0, *buf = sp->buf;
1115 struct hostent *host;
1118 if (getpeername(h->iofile, (struct sockaddr*) &addr, &len) < 0)
1120 h->cerrno = CSYSERR;
1123 if (!(h->blocking&2)) {
1124 if ((host = gethostbyaddr((char*)&addr.sin_addr, sizeof(addr.sin_addr),
1126 r = (char*) host->h_name;
1129 r = inet_ntoa(addr.sin_addr);
1130 if (h->protocol == PROTO_HTTP)
1131 sprintf(buf, "http:%s", r);
1133 sprintf(buf, "tcp:%s", r);
1134 #if HAVE_OPENSSL_SSL_H
1137 if (h->protocol == PROTO_HTTP)
1138 sprintf(buf, "https:%s", r);
1140 sprintf(buf, "ssl:%s", r);
1146 int static tcpip_set_blocking(COMSTACK p, int blocking)
1150 if (p->blocking == blocking)
1154 if (ioctlsocket(p->iofile, FIONBIO, &flag) < 0)
1157 flag = fcntl(p->iofile, F_GETFL, 0);
1159 flag = flag & ~O_NONBLOCK;
1161 flag = flag | O_NONBLOCK;
1162 if (fcntl(p->iofile, F_SETFL, flag) < 0)
1165 p->blocking = blocking;
1169 #if HAVE_OPENSSL_SSL_H
1170 int cs_set_ssl_ctx(COMSTACK cs, void *ctx)
1172 struct tcpip_state *sp;
1173 if (!cs || cs->type != ssl_type)
1175 sp = (struct tcpip_state *) cs->cprivate;
1178 sp->ctx = (SSL_CTX *) ctx;
1182 void *cs_get_ssl(COMSTACK cs)
1184 struct tcpip_state *sp;
1185 if (!cs || cs->type != ssl_type)
1187 sp = (struct tcpip_state *) cs->cprivate;
1191 int cs_set_ssl_certificate_file(COMSTACK cs, const char *fname)
1193 struct tcpip_state *sp;
1194 if (!cs || cs->type != ssl_type)
1196 sp = (struct tcpip_state *) cs->cprivate;
1197 strncpy(sp->cert_fname, fname, sizeof(sp->cert_fname)-1);
1198 sp->cert_fname[sizeof(sp->cert_fname)-1] = '\0';
1202 int cs_get_peer_certificate_x509(COMSTACK cs, char **buf, int *len)
1204 SSL *ssl = (SSL *) cs_get_ssl(cs);
1207 X509 *server_cert = SSL_get_peer_certificate (ssl);
1210 BIO *bio = BIO_new(BIO_s_mem());
1212 /* get PEM buffer in memory */
1213 PEM_write_bio_X509(bio, server_cert);
1214 *len = BIO_get_mem_data(bio, &pem_buf);
1215 *buf = (char *) xmalloc(*len);
1216 memcpy(*buf, pem_buf, *len);
1224 int cs_set_ssl_ctx(COMSTACK cs, void *ctx)
1229 void *cs_get_ssl(COMSTACK cs)
1234 int cs_get_peer_certificate_x509(COMSTACK cs, char **buf, int *len)
1239 int cs_set_ssl_certificate_file(COMSTACK cs, const char *fname)
1248 * indent-tabs-mode: nil
1250 * vim: shiftwidth=4 tabstop=8 expandtab