X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=comstack%2Ftcpip.c;h=8649a3f764ba4e12bd0cfd587a5d10760d83baeb;hb=34203146338c5f6c89774bde4caad110345405bd;hp=a106805155e03738040ddfa5d2e185530865f0f8;hpb=b638e7e4efc850ee6446b14fa45c66690377ccf2;p=yaz-moved-to-github.git diff --git a/comstack/tcpip.c b/comstack/tcpip.c index a106805..8649a3f 100644 --- a/comstack/tcpip.c +++ b/comstack/tcpip.c @@ -1,208 +1,8 @@ /* - * Copyright (c) 1995-2001, Index Data + * Copyright (c) 1995-2003, Index Data * See the file LICENSE for details. * - * $Log: tcpip.c,v $ - * Revision 1.43 2001-10-22 16:00:04 adam - * Renamed states for COMSTACKs to avoid confusion with events. - * - * Revision 1.42 2001/10/22 13:57:24 adam - * Implemented cs_rcvconnect and cs_look as described in the documentation. - * - * Revision 1.41 2001/10/12 21:49:26 adam - * For accept/recv/send check for EAGAIN if it's differs from EWOULDBLOCK. - * - * Revision 1.40 2001/08/23 09:02:46 adam - * WIN32 fixes: Socket not re-used for bind. yaz_log logs WIN32 error - * message. - * - * Revision 1.39 2001/07/19 19:49:40 adam - * Fixed bug in tcpip_set_blocking. - * - * 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 @@ -213,6 +13,7 @@ #endif #include #include +#include #if HAVE_OPENSSL_SSL_H #include #include @@ -225,26 +26,26 @@ /* Chas added the following, so we get the definition of completeBER */ #include -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 @@ -252,6 +53,10 @@ void *tcpip_straddr(COMSTACK h, const char *str); #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 { @@ -288,15 +93,8 @@ static int tcpip_init (void) 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 @@ -318,13 +116,8 @@ COMSTACK tcpip_type(int s, int blocking, int protocol, void *vp) 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 @@ -337,10 +130,17 @@ COMSTACK tcpip_type(int s, int blocking, int protocol, void *vp) #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; @@ -487,40 +287,85 @@ int tcpip_connect(COMSTACK h, void *address) { 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_ST_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->event = CS_CONNECT; - h->state = CS_ST_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->event = CS_CONNECT; - h->state = CS_ST_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->event = CS_CONNECT; - h->state = CS_ST_CONNECTING; + h->cerrno = CSYSERR; + return -1; } + 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; @@ -542,13 +387,11 @@ int tcpip_connect(COMSTACK h, void *address) 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; } @@ -562,45 +405,6 @@ int tcpip_connect(COMSTACK h, void *address) return 0; } -/* - * nop - */ -int tcpip_rcvconnect(COMSTACK cs) -{ - TRC(fprintf(stderr, "tcpip_rcvconnect\n")); - - if (cs->event == CS_CONNECT) - { - int fd = cs->iofile; - fd_set input, output; - struct timeval tv; - int r; - - tv.tv_sec = 0; - tv.tv_usec = 1; - - FD_ZERO(&input); - FD_ZERO(&output); - FD_SET (fd, &input); - FD_SET (fd, &output); - - r = select (fd+1, &input, &output, 0, &tv); - if (r > 0) - { - if (FD_ISSET(cs->iofile, &output)) - { - cs->event = CS_DATA; - return 0; /* write OK, we're OK */ - } - else - return -1; /* an error, for sure */ - } - else if (r == 0) - return 0; /* timeout - incomplete */ - } - return -1; /* wrong state or bad select */ -} - #define CERTF "ztest.pem" #define KEYF "ztest.pem" @@ -678,11 +482,7 @@ int tcpip_listen(COMSTACK h, char *raddr, int *addrlen, 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_ST_IDLE) @@ -697,10 +497,10 @@ int tcpip_listen(COMSTACK h, char *raddr, int *addrlen, #ifdef WIN32 WSAGetLastError() == WSAEWOULDBLOCK #else - errno == EWOULDBLOCK + yaz_errno() == EWOULDBLOCK #ifdef EAGAIN #if EAGAIN != EWOULDBLOCK - || errno == EAGAIN + || yaz_errno() == EAGAIN #endif #endif #endif @@ -826,13 +626,11 @@ COMSTACK tcpip_accept(COMSTACK h) 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); @@ -890,10 +688,17 @@ int tcpip_get(COMSTACK h, char **buf, int *bufsize) 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) { @@ -903,22 +708,25 @@ int tcpip_get(COMSTACK h, char **buf, int *bufsize) else return -1; #else - if (errno == EWOULDBLOCK + if (yaz_errno() == EWOULDBLOCK #ifdef EAGAIN #if EAGAIN != EWOULDBLOCK - || errno == EAGAIN + || yaz_errno() == EAGAIN +#endif #endif + || yaz_errno() == EINPROGRESS +#ifdef __sun__ + || yaz_errno() == ENOENT /* Sun's sometimes set errno to this */ #endif - || errno == EINPROGRESS ) { 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) @@ -996,13 +804,11 @@ int ssl_get(COMSTACK h, char **buf, int *bufsize) 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) @@ -1077,12 +883,16 @@ int tcpip_put(COMSTACK h, char *buf, int size) #ifdef WIN32 WSAGetLastError() == WSAEWOULDBLOCK #else - errno == EWOULDBLOCK + yaz_errno() == EWOULDBLOCK #ifdef EAGAIN #if EAGAIN != EWOULDBLOCK - || errno == EAGAIN + || yaz_errno() == EAGAIN +#endif #endif +#ifdef __sun__ + || yaz_errno() == ENOENT /* Sun's sometimes set errno to this value! */ #endif + || yaz_errno() == EINPROGRESS #endif ) { @@ -1137,13 +947,11 @@ int ssl_put(COMSTACK h, char *buf, int 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; @@ -1200,7 +1008,7 @@ char *tcpip_addrstr(COMSTACK h) 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);