2 * Copyright (C) 1995-2005, Index Data ApS
3 * See the file LICENSE for details.
5 * $Id: tcpip.c,v 1.20 2006-08-30 12:04:43 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;
255 TRC(fprintf(stderr, "tcpip_strtoaddress: %s\n", str ? str : "NULL"));
256 add->sin_family = AF_INET;
257 strncpy(buf, str, 511);
259 if ((p = strchr(buf, '/')))
261 if ((p = strchr(buf, ':')))
266 add->sin_port = htons(port);
267 if (!strcmp("@", buf))
269 add->sin_addr.s_addr = INADDR_ANY;
271 else if ((tmpadd = inet_addr(buf)) != INADDR_NONE)
273 memcpy(&add->sin_addr.s_addr, &tmpadd, sizeof(struct in_addr));
275 #if HAVE_GETHOSTBYNAME_R
276 else if (gethostbyname_r(buf, &h, hbuf, sizeof(hbuf), &hp, &h_error) == 0)
278 memcpy(&add->sin_addr.s_addr, *hp->h_addr_list,
279 sizeof(struct in_addr));
282 else if ((hp = gethostbyname(buf)))
284 memcpy(&add->sin_addr.s_addr, *hp->h_addr_list,
285 sizeof(struct in_addr));
293 void *tcpip_straddr(COMSTACK h, const char *str)
295 tcpip_state *sp = (tcpip_state *)h->cprivate;
298 if (h->protocol == PROTO_HTTP)
301 if (!tcpip_strtoaddr_ex (str, &sp->addr, port))
306 struct sockaddr_in *tcpip_strtoaddr(const char *str)
308 static struct sockaddr_in add;
310 if (!tcpip_strtoaddr_ex (str, &add, 210))
315 int tcpip_more(COMSTACK h)
317 tcpip_state *sp = (tcpip_state *)h->cprivate;
319 return sp->altlen && (*sp->complete)((unsigned char *) sp->altbuf,
324 * connect(2) will block (sometimes) - nothing we can do short of doing
325 * weird things like spawning subprocesses or threading or some weird junk
328 int tcpip_connect(COMSTACK h, void *address)
330 struct sockaddr_in *add = (struct sockaddr_in *)address;
334 YAZ_SOCKLEN_T rbufsize = sizeof(recbuflen);
336 TRC(fprintf(stderr, "tcpip_connect\n"));
338 if (h->state != CS_ST_UNBND)
340 h->cerrno = CSOUTSTATE;
344 /* On Suns, you must set a bigger Receive Buffer BEFORE a call to connect
345 * This gives the connect a chance to negotiate with the other side
348 if ( getsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, &rbufsize ) < 0 )
353 TRC(fprintf( stderr, "Current Size of TCP Receive Buffer= %d\n",
355 recbuflen *= 10; /* lets be optimistic */
356 if ( setsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, rbufsize ) < 0 )
361 if ( getsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, &rbufsize ) )
366 TRC(fprintf( stderr, "New Size of TCP Receive Buffer = %d\n",
369 r = connect(h->iofile, (struct sockaddr *) add, sizeof(*add));
373 if (WSAGetLastError() == WSAEWOULDBLOCK)
375 h->event = CS_CONNECT;
376 h->state = CS_ST_CONNECTING;
377 h->io_pending = CS_WANT_WRITE;
381 if (yaz_errno() == EINPROGRESS)
383 h->event = CS_CONNECT;
384 h->state = CS_ST_CONNECTING;
385 h->io_pending = CS_WANT_WRITE|CS_WANT_READ;
392 h->event = CS_CONNECT;
393 h->state = CS_ST_CONNECTING;
395 return tcpip_rcvconnect (h);
401 int tcpip_rcvconnect(COMSTACK h)
403 #if HAVE_OPENSSL_SSL_H
404 tcpip_state *sp = (tcpip_state *)h->cprivate;
406 TRC(fprintf(stderr, "tcpip_rcvconnect\n"));
408 if (h->state == CS_ST_DATAXFER)
410 if (h->state != CS_ST_CONNECTING)
412 h->cerrno = CSOUTSTATE;
415 #if HAVE_OPENSSL_SSL_H
416 if (h->type == ssl_type && !sp->ctx)
418 SSL_load_error_strings();
419 SSLeay_add_all_algorithms();
421 sp->ctx = sp->ctx_alloc = SSL_CTX_new (SSLv23_method());
424 h->cerrno = CSERRORSSL;
434 sp->ssl = SSL_new (sp->ctx);
435 SSL_set_fd (sp->ssl, h->iofile);
437 res = SSL_connect (sp->ssl);
440 int err = SSL_get_error(sp->ssl, res);
441 if (err == SSL_ERROR_WANT_READ)
443 h->io_pending = CS_WANT_READ;
446 if (err == SSL_ERROR_WANT_WRITE)
448 h->io_pending = CS_WANT_WRITE;
451 h->cerrno = CSERRORSSL;
457 h->state = CS_ST_DATAXFER;
461 #define CERTF "ztest.pem"
462 #define KEYF "ztest.pem"
464 static void tcpip_setsockopt (int fd)
470 if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char*)&set, sizeof(int)))
472 yaz_log(LOG_WARN|LOG_ERRNO, "setsockopt TCP_NODELAY");
474 if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, (char*)&len, sizeof(int)))
476 yaz_log(LOG_WARN|LOG_ERRNO, "setsockopt SNDBUF");
478 if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (char*)&len, sizeof(int)))
480 yaz_log(LOG_WARN|LOG_ERRNO, "setsockopt RCVBUF");
485 static int tcpip_bind(COMSTACK h, void *address, int mode)
487 struct sockaddr *addr = (struct sockaddr *)address;
491 unsigned long one = 1;
494 #if HAVE_OPENSSL_SSL_H
495 tcpip_state *sp = (tcpip_state *)h->cprivate;
496 if (h->type == ssl_type && !sp->ctx)
498 SSL_load_error_strings();
499 SSLeay_add_all_algorithms();
501 sp->ctx = sp->ctx_alloc = SSL_CTX_new (SSLv23_method());
504 h->cerrno = CSERRORSSL;
513 res = SSL_CTX_use_certificate_chain_file(sp->ctx, sp->cert_fname);
516 ERR_print_errors_fp(stderr);
519 res = SSL_CTX_use_PrivateKey_file (sp->ctx, sp->cert_fname,
523 ERR_print_errors_fp(stderr);
526 res = SSL_CTX_check_private_key (sp->ctx);
529 ERR_print_errors_fp(stderr);
533 TRC (fprintf (stderr, "ssl_bind\n"));
537 TRC (fprintf (stderr, "tcpip_bind\n"));
540 TRC (fprintf (stderr, "tcpip_bind\n"));
543 if (setsockopt(h->iofile, SOL_SOCKET, SO_REUSEADDR, (char*)
544 &one, sizeof(one)) < 0)
550 tcpip_setsockopt(h->iofile);
551 if (bind(h->iofile, addr, sizeof(struct sockaddr_in)))
556 /* Allow a maximum-sized backlog of waiting-to-connect clients */
557 if (mode == CS_SERVER && listen(h->iofile, SOMAXCONN) < 0)
562 h->state = CS_ST_IDLE;
563 h->event = CS_LISTEN;
567 int tcpip_listen(COMSTACK h, char *raddr, int *addrlen,
568 int (*check_ip)(void *cd, const char *a, int len, int t),
571 struct sockaddr_in addr;
572 YAZ_SOCKLEN_T len = sizeof(addr);
574 TRC(fprintf(stderr, "tcpip_listen pid=%d\n", getpid()));
575 if (h->state != CS_ST_IDLE)
577 h->cerrno = CSOUTSTATE;
580 h->newfd = accept(h->iofile, (struct sockaddr*)&addr, &len);
585 WSAGetLastError() == WSAEWOULDBLOCK
587 yaz_errno() == EWOULDBLOCK
589 #if EAGAIN != EWOULDBLOCK
590 || yaz_errno() == EAGAIN
595 h->cerrno = CSNODATA;
600 if (addrlen && (size_t) (*addrlen) >= sizeof(struct sockaddr_in))
601 memcpy(raddr, &addr, *addrlen = sizeof(struct sockaddr_in));
604 if (check_ip && (*check_ip)(cd, (const char *) &addr,
605 sizeof(addr), AF_INET))
609 closesocket(h->newfd);
616 h->state = CS_ST_INCON;
617 tcpip_setsockopt (h->newfd);
621 COMSTACK tcpip_accept(COMSTACK h)
624 tcpip_state *state, *st = (tcpip_state *)h->cprivate;
626 unsigned long tru = 1;
629 TRC(fprintf(stderr, "tcpip_accept\n"));
630 if (h->state == CS_ST_INCON)
632 if (!(cnew = (COMSTACK)xmalloc(sizeof(*cnew))))
636 closesocket(h->newfd);
643 memcpy(cnew, h, sizeof(*h));
644 cnew->iofile = h->newfd;
645 cnew->io_pending = 0;
646 if (!(state = (tcpip_state *)
647 (cnew->cprivate = xmalloc(sizeof(tcpip_state)))))
653 closesocket(h->newfd);
661 if (!(cnew->blocking&1) &&
663 (ioctlsocket(cnew->iofile, FIONBIO, &tru) < 0)
665 (fcntl(cnew->iofile, F_SETFL, O_NONBLOCK) < 0)
673 closesocket(h->newfd);
685 state->altsize = state->altlen = 0;
686 state->towrite = state->written = -1;
687 state->complete = st->complete;
688 cnew->state = CS_ST_ACCEPT;
689 h->state = CS_ST_IDLE;
691 #if HAVE_OPENSSL_SSL_H
692 state->ctx = st->ctx;
693 state->ctx_alloc = 0;
694 state->ssl = st->ssl;
697 state->ssl = SSL_new (state->ctx);
698 SSL_set_fd (state->ssl, cnew->iofile);
703 if (h->state == CS_ST_ACCEPT)
705 #if HAVE_OPENSSL_SSL_H
706 tcpip_state *state = (tcpip_state *)h->cprivate;
709 int res = SSL_accept (state->ssl);
710 TRC(fprintf(stderr, "SSL_accept\n"));
713 int err = SSL_get_error(state->ssl, res);
714 if (err == SSL_ERROR_WANT_READ)
716 h->io_pending = CS_WANT_READ;
719 if (err == SSL_ERROR_WANT_WRITE)
721 h->io_pending = CS_WANT_WRITE;
732 h->cerrno = CSOUTSTATE;
736 h->state = CS_ST_DATAXFER;
741 #define CS_TCPIP_BUFCHUNK 4096
744 * Return: -1 error, >1 good, len of buffer, ==1 incomplete buffer,
745 * 0=connection closed.
747 int tcpip_get(COMSTACK h, char **buf, int *bufsize)
749 tcpip_state *sp = (tcpip_state *)h->cprivate;
751 int tmpi, berlen, rest, req, tomove;
752 int hasread = 0, res;
754 TRC(fprintf(stderr, "tcpip_get: bufsize=%d\n", *bufsize));
755 if (sp->altlen) /* switch buffers */
757 TRC(fprintf(stderr, " %d bytes in altbuf (0x%x)\n", sp->altlen,
758 (unsigned) sp->altbuf));
762 *bufsize = sp->altsize;
763 hasread = sp->altlen;
769 while (!(berlen = (*sp->complete)((unsigned char *)*buf, hasread)))
773 if (!(*buf = (char *)xmalloc(*bufsize = CS_TCPIP_BUFCHUNK)))
779 else if (*bufsize - hasread < CS_TCPIP_BUFCHUNK)
780 if (!(*buf =(char *)xrealloc(*buf, *bufsize *= 2)))
787 /* unfortunatly, sun sometimes forgets to set errno in recv
788 when EWOULDBLOCK etc. would be required (res = -1) */
790 res = recv(h->iofile, *buf + hasread, CS_TCPIP_BUFCHUNK, 0);
791 TRC(fprintf(stderr, " recv res=%d, hasread=%d\n", res, hasread));
794 TRC(fprintf(stderr, " recv errno=%d, (%s)\n", yaz_errno(),
795 strerror(yaz_errno())));
797 if (WSAGetLastError() == WSAEWOULDBLOCK)
799 h->io_pending = CS_WANT_READ;
805 if (yaz_errno() == EWOULDBLOCK
807 #if EAGAIN != EWOULDBLOCK
808 || yaz_errno() == EAGAIN
811 || yaz_errno() == EINPROGRESS
813 || yaz_errno() == ENOENT /* Sun's sometimes set errno to this */
817 h->io_pending = CS_WANT_READ;
820 else if (yaz_errno() == 0)
829 if (hasread > h->max_recv_bytes)
831 h->cerrno = CSBUFSIZE;
835 TRC (fprintf (stderr, " Out of read loop with hasread=%d, berlen=%d\n",
837 /* move surplus buffer (or everything if we didn't get a BER rec.) */
838 if (hasread > berlen)
840 tomove = req = hasread - berlen;
841 rest = tomove % CS_TCPIP_BUFCHUNK;
843 req += CS_TCPIP_BUFCHUNK - rest;
846 if (!(sp->altbuf = (char *)xmalloc(sp->altsize = req)))
848 } else if (sp->altsize < req)
849 if (!(sp->altbuf =(char *)xrealloc(sp->altbuf, sp->altsize = req)))
851 TRC(fprintf(stderr, " Moving %d bytes to altbuf(0x%x)\n", tomove,
852 (unsigned) sp->altbuf));
853 memcpy(sp->altbuf, *buf + berlen, sp->altlen = tomove);
855 if (berlen < CS_TCPIP_BUFCHUNK - 1)
856 *(*buf + berlen) = '\0';
857 return berlen ? berlen : 1;
861 #if HAVE_OPENSSL_SSL_H
863 * Return: -1 error, >1 good, len of buffer, ==1 incomplete buffer,
864 * 0=connection closed.
866 int ssl_get(COMSTACK h, char **buf, int *bufsize)
868 tcpip_state *sp = (tcpip_state *)h->cprivate;
870 int tmpi, berlen, rest, req, tomove;
871 int hasread = 0, res;
873 TRC(fprintf(stderr, "ssl_get: bufsize=%d\n", *bufsize));
874 if (sp->altlen) /* switch buffers */
876 TRC(fprintf(stderr, " %d bytes in altbuf (0x%x)\n", sp->altlen,
877 (unsigned) sp->altbuf));
881 *bufsize = sp->altsize;
882 hasread = sp->altlen;
888 while (!(berlen = (*sp->complete)((unsigned char *)*buf, hasread)))
892 if (!(*buf = (char *)xmalloc(*bufsize = CS_TCPIP_BUFCHUNK)))
895 else if (*bufsize - hasread < CS_TCPIP_BUFCHUNK)
896 if (!(*buf =(char *)xrealloc(*buf, *bufsize *= 2)))
898 res = SSL_read (sp->ssl, *buf + hasread, CS_TCPIP_BUFCHUNK);
899 TRC(fprintf(stderr, " SSL_read res=%d, hasread=%d\n", res, hasread));
902 int ssl_err = SSL_get_error(sp->ssl, res);
903 if (ssl_err == SSL_ERROR_WANT_READ)
905 h->io_pending = CS_WANT_READ;
908 if (ssl_err == SSL_ERROR_WANT_WRITE)
910 h->io_pending = CS_WANT_WRITE;
915 h->cerrno = CSERRORSSL;
920 TRC (fprintf (stderr, " Out of read loop with hasread=%d, berlen=%d\n",
922 /* move surplus buffer (or everything if we didn't get a BER rec.) */
923 if (hasread > berlen)
925 tomove = req = hasread - berlen;
926 rest = tomove % CS_TCPIP_BUFCHUNK;
928 req += CS_TCPIP_BUFCHUNK - rest;
931 if (!(sp->altbuf = (char *)xmalloc(sp->altsize = req)))
933 } else if (sp->altsize < req)
934 if (!(sp->altbuf =(char *)xrealloc(sp->altbuf, sp->altsize = req)))
936 TRC(fprintf(stderr, " Moving %d bytes to altbuf(0x%x)\n", tomove,
937 (unsigned) sp->altbuf));
938 memcpy(sp->altbuf, *buf + berlen, sp->altlen = tomove);
940 if (berlen < CS_TCPIP_BUFCHUNK - 1)
941 *(*buf + berlen) = '\0';
942 return berlen ? berlen : 1;
948 * In nonblocking mode, you must call again with same buffer while
951 int tcpip_put(COMSTACK h, char *buf, int size)
954 struct tcpip_state *state = (struct tcpip_state *)h->cprivate;
956 TRC(fprintf(stderr, "tcpip_put: size=%d\n", size));
959 if (state->towrite < 0)
961 state->towrite = size;
964 else if (state->towrite != size)
966 h->cerrno = CSWRONGBUF;
969 while (state->towrite > state->written)
972 send(h->iofile, buf + state->written, size -
983 WSAGetLastError() == WSAEWOULDBLOCK
985 yaz_errno() == EWOULDBLOCK
987 #if EAGAIN != EWOULDBLOCK
988 || yaz_errno() == EAGAIN
992 || yaz_errno() == ENOENT /* Sun's sometimes set errno to this value! */
994 || yaz_errno() == EINPROGRESS
998 TRC(fprintf(stderr, " Flow control stop\n"));
999 h->io_pending = CS_WANT_WRITE;
1002 h->cerrno = CSYSERR;
1005 state->written += res;
1006 TRC(fprintf(stderr, " Wrote %d, written=%d, nbytes=%d\n",
1007 res, state->written, size));
1009 state->towrite = state->written = -1;
1010 TRC(fprintf(stderr, " Ok\n"));
1015 #if HAVE_OPENSSL_SSL_H
1017 * Returns 1, 0 or -1
1018 * In nonblocking mode, you must call again with same buffer while
1019 * return value is 1.
1021 int ssl_put(COMSTACK h, char *buf, int size)
1024 struct tcpip_state *state = (struct tcpip_state *)h->cprivate;
1026 TRC(fprintf(stderr, "ssl_put: size=%d\n", size));
1029 if (state->towrite < 0)
1031 state->towrite = size;
1034 else if (state->towrite != size)
1036 h->cerrno = CSWRONGBUF;
1039 while (state->towrite > state->written)
1041 res = SSL_write (state->ssl, buf + state->written,
1042 size - state->written);
1045 int ssl_err = SSL_get_error(state->ssl, res);
1046 if (ssl_err == SSL_ERROR_WANT_READ)
1048 h->io_pending = CS_WANT_READ;
1051 if (ssl_err == SSL_ERROR_WANT_WRITE)
1053 h->io_pending = CS_WANT_WRITE;
1056 h->cerrno = CSERRORSSL;
1059 state->written += res;
1060 TRC(fprintf(stderr, " Wrote %d, written=%d, nbytes=%d\n",
1061 res, state->written, size));
1063 state->towrite = state->written = -1;
1064 TRC(fprintf(stderr, " Ok\n"));
1069 int tcpip_close(COMSTACK h)
1071 tcpip_state *sp = (struct tcpip_state *)h->cprivate;
1073 TRC(fprintf(stderr, "tcpip_close\n"));
1074 if (h->iofile != -1)
1076 #if HAVE_OPENSSL_SSL_H
1079 SSL_shutdown (sp->ssl);
1083 closesocket(h->iofile);
1090 #if HAVE_OPENSSL_SSL_H
1093 TRC (fprintf(stderr, "SSL_free\n"));
1098 SSL_CTX_free (sp->ctx_alloc);
1105 char *tcpip_addrstr(COMSTACK h)
1107 struct sockaddr_in addr;
1108 tcpip_state *sp = (struct tcpip_state *)h->cprivate;
1109 char *r = 0, *buf = sp->buf;
1111 struct hostent *host;
1114 if (getpeername(h->iofile, (struct sockaddr*) &addr, &len) < 0)
1116 h->cerrno = CSYSERR;
1119 if (!(h->blocking&2)) {
1120 if ((host = gethostbyaddr((char*)&addr.sin_addr, sizeof(addr.sin_addr),
1122 r = (char*) host->h_name;
1125 r = inet_ntoa(addr.sin_addr);
1126 if (h->protocol == PROTO_HTTP)
1127 sprintf(buf, "http:%s", r);
1129 sprintf(buf, "tcp:%s", r);
1130 #if HAVE_OPENSSL_SSL_H
1133 if (h->protocol == PROTO_HTTP)
1134 sprintf(buf, "https:%s", r);
1136 sprintf(buf, "ssl:%s", r);
1142 int static tcpip_set_blocking(COMSTACK p, int blocking)
1146 if (p->blocking == blocking)
1150 if (ioctlsocket(p->iofile, FIONBIO, &flag) < 0)
1153 flag = fcntl(p->iofile, F_GETFL, 0);
1155 flag = flag & ~O_NONBLOCK;
1157 flag = flag | O_NONBLOCK;
1158 if (fcntl(p->iofile, F_SETFL, flag) < 0)
1161 p->blocking = blocking;
1165 #if HAVE_OPENSSL_SSL_H
1166 int cs_set_ssl_ctx(COMSTACK cs, void *ctx)
1168 struct tcpip_state *sp;
1169 if (!cs || cs->type != ssl_type)
1171 sp = (struct tcpip_state *) cs->cprivate;
1174 sp->ctx = (SSL_CTX *) ctx;
1178 void *cs_get_ssl(COMSTACK cs)
1180 struct tcpip_state *sp;
1181 if (!cs || cs->type != ssl_type)
1183 sp = (struct tcpip_state *) cs->cprivate;
1187 int cs_set_ssl_certificate_file(COMSTACK cs, const char *fname)
1189 struct tcpip_state *sp;
1190 if (!cs || cs->type != ssl_type)
1192 sp = (struct tcpip_state *) cs->cprivate;
1193 strncpy(sp->cert_fname, fname, sizeof(sp->cert_fname)-1);
1194 sp->cert_fname[sizeof(sp->cert_fname)-1] = '\0';
1198 int cs_get_peer_certificate_x509(COMSTACK cs, char **buf, int *len)
1200 SSL *ssl = (SSL *) cs_get_ssl(cs);
1203 X509 *server_cert = SSL_get_peer_certificate (ssl);
1206 BIO *bio = BIO_new(BIO_s_mem());
1208 /* get PEM buffer in memory */
1209 PEM_write_bio_X509(bio, server_cert);
1210 *len = BIO_get_mem_data(bio, &pem_buf);
1211 *buf = (char *) xmalloc(*len);
1212 memcpy(*buf, pem_buf, *len);
1220 int cs_set_ssl_ctx(COMSTACK cs, void *ctx)
1225 void *cs_get_ssl(COMSTACK cs)
1230 int cs_get_peer_certificate_x509(COMSTACK cs, char **buf, int *len)
1235 int cs_set_ssl_certificate_file(COMSTACK cs, const char *fname)
1244 * indent-tabs-mode: nil
1246 * vim: shiftwidth=4 tabstop=8 expandtab