/*
- * Copyright (c) 1995-2001, Index Data
+ * Copyright (c) 1995-2003, Index Data
* See the file LICENSE for details.
*
- * $Log: tcpip.c,v $
- * Revision 1.38 2001-03-21 12:43:36 adam
- * Implemented cs_create_host. Better error reporting for SSL comstack.
- *
- * Revision 1.37 2001/03/08 20:18:55 adam
- * Added cs_set_blocking. Patch from Matthew Carey.
- *
- * Revision 1.36 2001/02/21 13:46:53 adam
- * C++ fixes.
- *
- * Revision 1.35 2000/11/27 15:17:40 adam
- * Using SSLeay_add_all_algorithms instead of OpenSSL_add_all_algorithms.
- *
- * Revision 1.34 2000/11/23 10:58:32 adam
- * SSL comstack support. Separate POSIX thread support library.
- *
- * Revision 1.33 2000/09/04 08:27:11 adam
- * Work on error handling for tcpip_accept.
- *
- * Revision 1.32 1999/11/30 13:47:11 adam
- * Improved installation. Moved header files to include/yaz.
- *
- * Revision 1.31 1999/04/29 07:31:23 adam
- * Changed tcpip_strtoaddr_ex so that only part 'till '/' is considered
- * part of hostname.
- *
- * Revision 1.30 1999/04/20 09:56:48 adam
- * Added 'name' paramter to encoder/decoder routines (typedef Odr_fun).
- * Modified all encoders/decoders to reflect this change.
- *
- * Revision 1.29 1999/04/16 14:45:55 adam
- * Added interface for tcpd wrapper for access control.
- *
- * Revision 1.28 1999/03/31 11:11:14 adam
- * Function getprotobyname only called once. Minor change in tcpip_get
- * to handle multi-threaded conditions.
- *
- * Revision 1.27 1999/02/02 13:57:31 adam
- * Uses preprocessor define WIN32 instead of WINDOWS to build code
- * for Microsoft WIN32.
- *
- * Revision 1.26 1999/01/08 11:23:14 adam
- * Added const modifier to some of the BER/ODR encoding routines.
- *
- * Revision 1.25 1998/07/07 15:49:23 adam
- * Added braces to avoid warning.
- *
- * Revision 1.24 1998/06/29 07:59:17 adam
- * Minor fix.
- *
- * Revision 1.23 1998/06/23 15:37:50 adam
- * Added type cast to prevent warning.
- *
- * Revision 1.22 1998/06/22 11:32:36 adam
- * Added 'conditional cs_listen' feature.
- *
- * Revision 1.21 1998/05/20 09:55:32 adam
- * Function tcpip_get treats EINPROGRESS error in the same way as
- * EWOULDBLOCK. EINPROGRESS shouldn't be returned - but it is on
- * Solaris in some cases.
- *
- * Revision 1.20 1998/05/18 10:10:40 adam
- * Minor change to avoid C++ warning.
- *
- * Revision 1.19 1998/02/11 11:53:33 adam
- * Changed code so that it compiles as C++.
- *
- * Revision 1.18 1997/09/29 07:15:25 adam
- * Changed use of setsockopt to avoid warnings on MSVC.
- *
- * Revision 1.17 1997/09/17 12:10:30 adam
- * YAZ version 1.4.
- *
- * Revision 1.16 1997/09/01 08:49:14 adam
- * New windows NT/95 port using MSV5.0. Minor changes only.
- *
- * Revision 1.15 1997/05/14 06:53:33 adam
- * C++ support.
- *
- * Revision 1.14 1997/05/01 15:06:32 adam
- * Moved WINSOCK init. code to tcpip_init routine.
- *
- * Revision 1.13 1996/11/01 08:45:18 adam
- * Bug fix: used close on MS-Windows. Fixed to closesocket.
- *
- * Revision 1.12 1996/07/06 19:58:30 quinn
- * System headerfiles gathered in yconfig
- *
- * Revision 1.11 1996/02/23 10:00:39 quinn
- * WAIS Work
- *
- * Revision 1.10 1996/02/20 12:52:11 quinn
- * WAIS protocol support.
- *
- * Revision 1.9 1996/02/10 12:23:11 quinn
- * Enablie inetd operations fro TCP/IP stack
- *
- * Revision 1.8 1995/11/01 13:54:27 quinn
- * Minor adjustments
- *
- * Revision 1.7 1995/10/30 12:41:16 quinn
- * Added hostname lookup for server.
- *
- * Revision 1.6 1995/09/29 17:12:00 quinn
- * Smallish
- *
- * Revision 1.5 1995/09/29 17:01:48 quinn
- * More Windows work
- *
- * Revision 1.4 1995/09/28 10:12:26 quinn
- * Windows-support changes
- *
- * Revision 1.3 1995/09/27 15:02:45 quinn
- * Modified function heads & prototypes.
- *
- * Revision 1.2 1995/06/15 12:30:06 quinn
- * Added @ as hostname alias for INADDR ANY.
- *
- * Revision 1.1 1995/06/14 09:58:20 quinn
- * Renamed yazlib to comstack.
- *
- * Revision 1.20 1995/05/16 08:51:16 quinn
- * License, documentation, and memory fixes
- *
- * Revision 1.19 1995/04/10 10:24:08 quinn
- * Some bug-fixes.
- *
- * Revision 1.18 1995/03/30 13:29:27 quinn
- * Added REUSEADDR in tcpip_bind
- *
- * Revision 1.17 1995/03/27 08:36:10 quinn
- * Some work on nonblocking operation in xmosi.c and rfct.c.
- * Added protocol parameter to cs_create()
- *
- * Revision 1.16 1995/03/21 15:53:41 quinn
- * Added rcvconnect
- *
- * Revision 1.15 1995/03/21 12:31:27 quinn
- * Added check for EINPROGRESS on connect.
- *
- * Revision 1.14 1995/03/20 09:47:21 quinn
- * Added server-side support to xmosi.c
- * Fixed possible problems in rfct
- * Other little mods
- *
- * Revision 1.13 1995/03/15 16:15:13 adam
- * Removed p_write.
- *
- * Revision 1.12 1995/03/15 15:36:27 quinn
- * Mods to support nonblocking I/O
- *
- * Revision 1.11 1995/03/15 08:37:57 quinn
- * Now we're pretty much set for nonblocking I/O.
- *
- * Revision 1.10 1995/03/14 17:00:07 quinn
- * Bug-fixes - added tracing info to tcpip.c
- *
- * Revision 1.9 1995/03/14 10:28:42 quinn
- * Adding server-side support to tcpip.c and fixing bugs in nonblocking I/O
- *
- * Revision 1.8 1995/03/10 14:22:50 quinn
- * Removed debug output.
- *
- * Revision 1.7 1995/03/10 11:44:59 quinn
- * Fixes and debugging
- *
- * Revision 1.6 1995/03/07 10:26:55 quinn
- * Initialized type field in the comstacks.
- *
- * Revision 1.5 1995/02/14 20:40:07 quinn
- * Various stuff.
- *
- * Revision 1.4 1995/02/14 11:54:49 quinn
- * Beginning to add full CCL.
- *
- * Revision 1.3 1995/02/10 18:58:10 quinn
- * Fixed tcpip_get (formerly tcpip_read).
- * Turned tst (cli) into a proper, event-driven thingy.
- *
- * Revision 1.2 1995/02/10 15:55:47 quinn
- * Small things.
- *
- * Revision 1.1 1995/02/09 15:51:52 quinn
- * Works better now.
- *
+ * $Id: tcpip.c,v 1.53 2003-01-06 08:20:27 adam Exp $
*/
#include <stdio.h>
#endif
#include <errno.h>
#include <fcntl.h>
+#include <signal.h>
#if HAVE_OPENSSL_SSL_H
#include <openssl/ssl.h>
#include <openssl/err.h>
/* Chas added the following, so we get the definition of completeBER */
#include <yaz/odr.h>
-int tcpip_close(COMSTACK h);
-int tcpip_put(COMSTACK h, char *buf, int size);
-int tcpip_get(COMSTACK h, char **buf, int *bufsize);
-int tcpip_connect(COMSTACK h, void *address);
-int tcpip_more(COMSTACK h);
-int tcpip_rcvconnect(COMSTACK h);
-int tcpip_bind(COMSTACK h, void *address, int mode);
-int tcpip_listen(COMSTACK h, char *raddr, int *addrlen,
+static int tcpip_close(COMSTACK h);
+static int tcpip_put(COMSTACK h, char *buf, int size);
+static int tcpip_get(COMSTACK h, char **buf, int *bufsize);
+static int tcpip_connect(COMSTACK h, void *address);
+static int tcpip_more(COMSTACK h);
+static int tcpip_rcvconnect(COMSTACK h);
+static int tcpip_bind(COMSTACK h, void *address, int mode);
+static int tcpip_listen(COMSTACK h, char *raddr, int *addrlen,
int (*check_ip)(void *cd, const char *a, int len, int type),
void *cd);
-int static tcpip_set_blocking(COMSTACK p, int blocking);
+static int tcpip_set_blocking(COMSTACK p, int blocking);
#if HAVE_OPENSSL_SSL_H
-int ssl_get(COMSTACK h, char **buf, int *bufsize);
-int ssl_put(COMSTACK h, char *buf, int size);
+static int ssl_get(COMSTACK h, char **buf, int *bufsize);
+static int ssl_put(COMSTACK h, char *buf, int size);
#endif
-COMSTACK tcpip_accept(COMSTACK h);
-char *tcpip_addrstr(COMSTACK h);
-void *tcpip_straddr(COMSTACK h, const char *str);
+static COMSTACK tcpip_accept(COMSTACK h);
+static char *tcpip_addrstr(COMSTACK h);
+static void *tcpip_straddr(COMSTACK h, const char *str);
#if 0
#define TRC(x) x
#define TRC(X)
#endif
+#ifndef YAZ_SOCKLEN_T
+#define YAZ_SOCKLEN_T int
+#endif
+
/* this state is used for both SSL and straight TCP/IP */
typedef struct tcpip_state
{
return 1;
}
#else
-static int proto_number = 0;
-
static int tcpip_init (void)
{
- struct protoent *proto;
- /* only call getprotobyname once, in case it allocates memory */
- if (!(proto = getprotobyname("tcp")))
- return 0;
- proto_number = proto->p_proto;
return 1;
}
#endif
return 0;
if (s < 0)
{
-#ifdef WIN32
if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0)
return 0;
-#else
- if ((s = socket(AF_INET, SOCK_STREAM, proto_number)) < 0)
- return 0;
-#endif
new_socket = 1;
}
else
#ifdef WIN32
if (!(p->blocking = blocking) && ioctlsocket(s, FIONBIO, &tru) < 0)
+ return 0;
#else
- if (!(p->blocking = blocking) && fcntl(s, F_SETFL, O_NONBLOCK) < 0)
+ if (!(p->blocking = blocking))
+ {
+ if (fcntl(s, F_SETFL, O_NONBLOCK) < 0)
+ return 0;
+#ifndef MSG_NOSIGNAL
+ signal (SIGPIPE, SIG_IGN);
+#endif
+ }
#endif
- return 0;
p->io_pending = 0;
p->iofile = s;
p->f_straddr = tcpip_straddr;
p->f_set_blocking = tcpip_set_blocking;
- p->state = new_socket ? CS_UNBND : CS_IDLE; /* state of line */
+ p->state = new_socket ? CS_ST_UNBND : CS_ST_IDLE; /* state of line */
p->event = CS_NONE;
p->cerrno = 0;
p->stackerr = 0;
{
struct sockaddr_in *add = (struct sockaddr_in *)address;
#if HAVE_OPENSSL_SSL_H
- tcpip_state *sp = (tcpip_state *)h->cprivate;
+ tcpip_state *sp = (tcpip_state *)h->cprivate;
#endif
int r;
-
+#ifdef __sun__
+ int recbuflen;
+ socklen_t rbufsize = sizeof(recbuflen);
+#endif
TRC(fprintf(stderr, "tcpip_connect\n"));
h->io_pending = 0;
- if (h->state == CS_UNBND)
+ if (h->state != CS_ST_UNBND)
+ {
+ h->cerrno = CSOUTSTATE;
+ return -1;
+ }
+#ifdef __sun__
+ /* On Suns, you must set a bigger Receive Buffer BEFORE a call to connect
+ * This gives the connect a chance to negotiate with the other side
+ * (see 'man tcp')
+ */
+ if ( getsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, &rbufsize ) < 0 )
+ {
+ h->cerrno = CSYSERR;
+ return -1;
+ }
+ TRC(fprintf( stderr, "Current Size of TCP Receive Buffer= %d\n",
+ recbuflen ));
+ recbuflen *= 10; /* lets be optimistic */
+ if ( setsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, rbufsize ) < 0 )
+ {
+ h->cerrno = CSYSERR;
+ return -1;
+ }
+ if ( getsockopt(h->iofile, SOL_SOCKET, SO_RCVBUF, (void *)&recbuflen, &rbufsize ) )
+ {
+ h->cerrno = CSYSERR;
+ return -1;
+ }
+ TRC(fprintf( stderr, "New Size of TCP Receive Buffer = %d\n",
+ recbuflen ));
+#endif
+ r = connect(h->iofile, (struct sockaddr *) add, sizeof(*add));
+ if (r < 0)
{
- r = connect(h->iofile, (struct sockaddr *) add, sizeof(*add));
- if (r < 0)
- {
#ifdef WIN32
- if (WSAGetLastError() == WSAEWOULDBLOCK)
- {
- h->state = CS_CONNECTING;
- h->io_pending = CS_WANT_WRITE;
- return 1;
- }
+ if (WSAGetLastError() == WSAEWOULDBLOCK)
+ {
+ h->event = CS_CONNECT;
+ h->state = CS_ST_CONNECTING;
+ h->io_pending = CS_WANT_WRITE;
+ return 1;
+ }
#else
- if (errno == EINPROGRESS)
- {
- h->state = CS_CONNECTING;
- h->io_pending = CS_WANT_WRITE|CS_WANT_READ;
- return 1;
- }
+ if (yaz_errno() == EINPROGRESS)
+ {
+ h->event = CS_CONNECT;
+ h->state = CS_ST_CONNECTING;
+ h->io_pending = CS_WANT_WRITE|CS_WANT_READ;
+ return 1;
+ }
#endif
- h->cerrno = CSYSERR;
- return -1;
- }
- h->state = CS_CONNECTING;
+ h->cerrno = CSYSERR;
+ return -1;
}
- if (h->state != CS_CONNECTING)
+ h->event = CS_CONNECT;
+ h->state = CS_ST_CONNECTING;
+
+ return tcpip_rcvconnect (h);
+}
+
+/*
+ * nop
+ */
+int tcpip_rcvconnect(COMSTACK h)
+{
+ tcpip_state *sp = (tcpip_state *)h->cprivate;
+ TRC(fprintf(stderr, "tcpip_rcvconnect\n"));
+
+ if (h->state == CS_ST_DATAXFER)
+ return 0;
+ if (h->state != CS_ST_CONNECTING)
{
h->cerrno = CSOUTSTATE;
return -1;
int err = SSL_get_error(sp->ssl, res);
if (err == SSL_ERROR_WANT_READ)
{
- yaz_log (LOG_LOG, "SSL_connect. want_read");
h->io_pending = CS_WANT_READ;
return 1;
}
if (err == SSL_ERROR_WANT_WRITE)
{
- yaz_log (LOG_LOG, "SSL_connect. want_write");
h->io_pending = CS_WANT_WRITE;
return 1;
}
}
}
#endif
- h->state = CS_DATAXFER;
- return 0;
-}
-
-/*
- * nop
- */
-int tcpip_rcvconnect(COMSTACK h)
-{
- TRC(fprintf(stderr, "tcpip_rcvconnect\n"));
+ h->event = CS_DATA;
+ h->state = CS_ST_DATAXFER;
return 0;
}
#else
TRC (fprintf (stderr, "tcpip_bind\n"));
#endif
+#ifndef WIN32
if (setsockopt(h->iofile, SOL_SOCKET, SO_REUSEADDR, (char*)
&one, sizeof(one)) < 0)
{
h->cerrno = CSYSERR;
return -1;
}
- if (bind(h->iofile, addr, sizeof(struct sockaddr_in)) < 0)
+#endif
+ if (bind(h->iofile, addr, sizeof(struct sockaddr_in)))
{
h->cerrno = CSYSERR;
return -1;
h->cerrno = CSYSERR;
return -1;
}
- h->state = CS_IDLE;
+ h->state = CS_ST_IDLE;
+ h->event = CS_LISTEN;
return 0;
}
void *cd)
{
struct sockaddr_in addr;
-#ifdef __cplusplus
- socklen_t len = sizeof(addr);
-#else
- int len = sizeof(addr);
-#endif
+ YAZ_SOCKLEN_T len = sizeof(addr);
TRC(fprintf(stderr, "tcpip_listen pid=%d\n", getpid()));
- if (h->state != CS_IDLE)
+ if (h->state != CS_ST_IDLE)
{
h->cerrno = CSOUTSTATE;
return -1;
#ifdef WIN32
WSAGetLastError() == WSAEWOULDBLOCK
#else
- errno == EWOULDBLOCK
+ yaz_errno() == EWOULDBLOCK
+#ifdef EAGAIN
+#if EAGAIN != EWOULDBLOCK
+ || yaz_errno() == EAGAIN
+#endif
+#endif
#endif
)
h->cerrno = CSNODATA;
h->newfd = -1;
return -1;
}
- h->state = CS_INCON;
+ h->state = CS_ST_INCON;
return 0;
}
#endif
TRC(fprintf(stderr, "tcpip_accept\n"));
- if (h->state == CS_INCON)
+ if (h->state == CS_ST_INCON)
{
if (!(cnew = (COMSTACK)xmalloc(sizeof(*cnew))))
{
state->altsize = state->altlen = 0;
state->towrite = state->written = -1;
state->complete = st->complete;
- cnew->state = CS_ACCEPT;
- h->state = CS_IDLE;
+ cnew->state = CS_ST_ACCEPT;
+ h->state = CS_ST_IDLE;
#if HAVE_OPENSSL_SSL_H
state->ctx = st->ctx;
#endif
h = cnew;
}
- if (h->state == CS_ACCEPT)
+ if (h->state == CS_ST_ACCEPT)
{
#if HAVE_OPENSSL_SSL_H
tcpip_state *state = (tcpip_state *)h->cprivate;
if (err == SSL_ERROR_WANT_READ)
{
h->io_pending = CS_WANT_READ;
- yaz_log (LOG_LOG, "SSL_accept. want_read");
return h;
}
if (err == SSL_ERROR_WANT_WRITE)
{
h->io_pending = CS_WANT_WRITE;
- yaz_log (LOG_LOG, "SSL_accept. want_write");
return h;
}
cs_close (h);
return 0;
}
h->io_pending = 0;
- h->state = CS_DATAXFER;
+ h->state = CS_ST_DATAXFER;
+ h->event = CS_DATA;
return h;
}
else if (*bufsize - hasread < CS_TCPIP_BUFCHUNK)
if (!(*buf =(char *)xrealloc(*buf, *bufsize *= 2)))
return -1;
+#ifdef __sun__
+ yaz_set_errno( 0 );
+ // unfortunatly, sun sometimes forgets to set errno in recv
+ // when EWOULDBLOCK etc. would be required (res = -1)
+#endif
res = recv(h->iofile, *buf + hasread, CS_TCPIP_BUFCHUNK, 0);
TRC(fprintf(stderr, " recv res=%d, hasread=%d\n", res, hasread));
if (res < 0)
{
+ TRC(fprintf(stderr, " recv errno=%d, (%s)\n", yaz_errno(),
+ strerror(yaz_errno())));
#ifdef WIN32
if (WSAGetLastError() == WSAEWOULDBLOCK)
{
else
return -1;
#else
- if (errno == EWOULDBLOCK
-#ifdef EINPROGRESS
- || errno == EINPROGRESS
+ if (yaz_errno() == EWOULDBLOCK
+#ifdef EAGAIN
+#if EAGAIN != EWOULDBLOCK
+ || yaz_errno() == EAGAIN
+#endif
+#endif
+ || yaz_errno() == EINPROGRESS
+#ifdef __sun__
+ || yaz_errno() == ENOENT /* Sun's sometimes set errno to this */
#endif
)
{
h->io_pending = CS_WANT_READ;
break;
}
- else if (errno == 0)
+ else if (yaz_errno() == 0)
continue;
else
- return -1;
+ return -1;
#endif
}
else if (!res)
if (ssl_err == SSL_ERROR_WANT_READ)
{
h->io_pending = CS_WANT_READ;
- yaz_log (LOG_LOG, "SSL_read. want_read");
break;
}
if (ssl_err == SSL_ERROR_WANT_WRITE)
{
h->io_pending = CS_WANT_WRITE;
- yaz_log (LOG_LOG, "SSL_read. want_write");
break;
}
if (res == 0)
TRC(fprintf(stderr, "tcpip_put: size=%d\n", size));
h->io_pending = 0;
+ h->event = CS_DATA;
if (state->towrite < 0)
{
state->towrite = size;
}
while (state->towrite > state->written)
{
- if ((res = send(h->iofile, buf + state->written, size -
- state->written, 0)) < 0)
+ if ((res =
+ send(h->iofile, buf + state->written, size -
+ state->written,
+#ifdef MSG_NOSIGNAL
+ MSG_NOSIGNAL
+#else
+ 0
+#endif
+ )) < 0)
{
if (
#ifdef WIN32
WSAGetLastError() == WSAEWOULDBLOCK
#else
- errno == EAGAIN
+ yaz_errno() == EWOULDBLOCK
+#ifdef EAGAIN
+#if EAGAIN != EWOULDBLOCK
+ || yaz_errno() == EAGAIN
+#endif
+#endif
+#ifdef __sun__
+ || yaz_errno() == ENOENT /* Sun's sometimes set errno to this value! */
+#endif
+ || yaz_errno() == EINPROGRESS
#endif
)
{
TRC(fprintf(stderr, "ssl_put: size=%d\n", size));
h->io_pending = 0;
+ h->event = CS_DATA;
if (state->towrite < 0)
{
state->towrite = size;
if (ssl_err == SSL_ERROR_WANT_READ)
{
h->io_pending = CS_WANT_READ;
- yaz_log (LOG_LOG, "SSL_write. want_read");
return 1;
}
if (ssl_err == SSL_ERROR_WANT_WRITE)
{
h->io_pending = CS_WANT_WRITE;
- yaz_log (LOG_LOG, "SSL_write. want_write");
return 1;
}
h->cerrno = CSERRORSSL;
struct sockaddr_in addr;
tcpip_state *sp = (struct tcpip_state *)h->cprivate;
char *r, *buf = sp->buf;
- size_t len;
+ YAZ_SOCKLEN_T len;
struct hostent *host;
len = sizeof(addr);
if (p->blocking == blocking)
return 1;
- if(blocking)
#ifdef WIN32
- flag = blocking;
+ flag = 1;
if (ioctlsocket(p->iofile, FIONBIO, &flag) < 0)
return 0;
#else