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/* This file is part of the YAZ toolkit. * Copyright (C) Index Data. * All rights reserved. * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Index Data nor the names of its contributors * may be used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** * \file comstack.h * \brief Header for COMSTACK */ #ifndef COMSTACK_H #define COMSTACK_H #include <yaz/yconfig.h> #include <yaz/oid_util.h> #include <yaz/xmalloc.h> YAZ_BEGIN_CDECL struct comstack; typedef struct comstack *COMSTACK; typedef COMSTACK (*CS_TYPE)(int s, int flags, int protocol, void *vp); struct comstack { CS_TYPE type; int cerrno; /* current error code of this stack */ int iofile; /* UNIX file descriptor for iochannel */ void *cprivate;/* state info for lower stack */ int max_recv_bytes; /* max size of incoming package */ int state; /* current state */ #define CS_ST_UNBND 0 #define CS_ST_IDLE 1 #define CS_ST_INCON 2 #define CS_ST_OUTCON 3 #define CS_ST_DATAXFER 4 #define CS_ST_ACCEPT 5 #define CS_ST_CONNECTING 6 int newfd; /* storing new descriptor between listen and accept */ int flags; /* flags, blocking etc.. CS_FLAGS_.. */ unsigned io_pending; /* flag to signal read / write op is incomplete */ int event; /* current event */ #define CS_NONE 0 #define CS_CONNECT 1 #define CS_DISCON 2 #define CS_LISTEN 3 #define CS_DATA 4 enum oid_proto protocol; /* what application protocol are we talking? */ int (*f_put)(COMSTACK handle, char *buf, int size); int (*f_get)(COMSTACK handle, char **buf, int *bufsize); int (*f_more)(COMSTACK handle); int (*f_connect)(COMSTACK handle, void *address); int (*f_rcvconnect)(COMSTACK handle); int (*f_bind)(COMSTACK handle, void *address, int mode); #define CS_CLIENT 0 #define CS_SERVER 1 int (*f_listen)(COMSTACK h, char *raddr, int *addrlen, int (*check_ip)(void *cd, const char *a, int len, int type), void *cd); COMSTACK (*f_accept)(COMSTACK handle); void (*f_close)(COMSTACK handle); const char *(*f_addrstr)(COMSTACK handle); void *(*f_straddr)(COMSTACK handle, const char *str); int (*f_set_blocking)(COMSTACK handle, int blocking); void *user; /* user defined data associated with COMSTACK */ }; #define cs_put(handle, buf, size) ((*(handle)->f_put)(handle, buf, size)) #define cs_get(handle, buf, size) ((*(handle)->f_get)(handle, buf, size)) #define cs_more(handle) ((*(handle)->f_more)(handle)) #define cs_connect(handle, address) ((*(handle)->f_connect)(handle, address)) #define cs_rcvconnect(handle) ((*(handle)->f_rcvconnect)(handle)) #define cs_bind(handle, ad, mo) ((*(handle)->f_bind)(handle, ad, mo)) #define cs_listen(handle, ap, al) ((*(handle)->f_listen)(handle, ap, al, 0, 0)) #define cs_listen_check(handle, ap, al, cf, cd) ((*(handle)->f_listen)(handle, ap, al, cf, cd)) #define cs_accept(handle) ((*(handle)->f_accept)(handle)) #define cs_close(handle) ((*(handle)->f_close)(handle)) #define cs_create(type, blocking, proto) ((*type)(-1, blocking, proto, 0)) #define cs_createbysocket(sock, type, blocking, proto) \ ((*type)(sock, blocking, proto, 0)) #define cs_type(handle) ((handle)->type) #define cs_fileno(handle) ((handle)->iofile) #define cs_getstate(handle) ((handle)->getstate) #define cs_errno(handle) ((handle)->cerrno) #define cs_getproto(handle) ((handle)->protocol) #define cs_addrstr(handle) ((*(handle)->f_addrstr)(handle)) #define cs_straddr(handle, str) ((*(handle)->f_straddr)(handle, str)) #define cs_want_read(handle) ((handle)->io_pending & CS_WANT_READ) #define cs_want_write(handle) ((handle)->io_pending & CS_WANT_WRITE) #define cs_set_blocking(handle,blocking) ((handle)->f_set_blocking(handle, blocking)) #define CS_WANT_READ 1 #define CS_WANT_WRITE 2 YAZ_EXPORT int cs_look (COMSTACK); YAZ_EXPORT const char *cs_strerror(COMSTACK h); YAZ_EXPORT const char *cs_errmsg(int n); YAZ_EXPORT COMSTACK cs_create_host(const char *type_and_host, int blocking, void **vp); YAZ_EXPORT COMSTACK cs_create_host_proxy(const char *vhost, int blocking, void **vp, const char *proxy_host); YAZ_EXPORT COMSTACK cs_create_host2(const char *vhost, int blocking, void **vp, const char *proxy_host, int *proxy_mode); YAZ_EXPORT void cs_get_host_args(const char *type_and_host, const char **args); YAZ_EXPORT int cs_complete_auto_head(const char *buf, int len); YAZ_EXPORT int cs_complete_auto(const char *buf, int len); YAZ_EXPORT void *cs_get_ssl(COMSTACK cs) #ifdef __GNUC__ __attribute__ ((deprecated)) #endif ; YAZ_EXPORT int cs_set_ssl_ctx(COMSTACK cs, void *ctx) #ifdef __GNUC__ __attribute__ ((deprecated)) #endif ; YAZ_EXPORT int cs_set_ssl_certificate_file(COMSTACK cs, const char *fname); YAZ_EXPORT int cs_get_peer_certificate_x509(COMSTACK cs, char **buf, int *len); YAZ_EXPORT void cs_set_max_recv_bytes(COMSTACK cs, int max_recv_bytes); YAZ_EXPORT void cs_print_session_info(COMSTACK cs); YAZ_EXPORT int cs_parse_host(const char *uri, const char **host, CS_TYPE *t, enum oid_proto *proto, char **connect_host); /* * error management. */ #define CSNONE 0 #define CSYSERR 1 #define CSOUTSTATE 2 #define CSNODATA 3 #define CSWRONGBUF 4 #define CSDENY 5 #define CSERRORSSL 6 #define CSBUFSIZE 7 #define CSLASTERROR CSBUFSIZE /* must be the value of last CS error */ #define CS_FLAGS_BLOCKING 1 #define CS_FLAGS_NUMERICHOST 2 #define CS_FLAGS_DNS_NO_BLOCK 4 YAZ_END_CDECL #endif /* * Local variables: * c-basic-offset: 4 * c-file-style: "Stroustrup" * indent-tabs-mode: nil * End: * vim: shiftwidth=4 tabstop=8 expandtab */