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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
*/