1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2013 Index Data.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Index Data nor the names of its contributors
13 * may be used to endorse or promote products derived from this
14 * software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 * \brief Header for COMSTACK
36 #include <yaz/yconfig.h>
37 #include <yaz/oid_util.h>
38 #include <yaz/xmalloc.h>
42 #define COMSTACK_DEFAULT_TIMEOUT -1 /* not used yet */
45 typedef struct comstack *COMSTACK;
46 typedef COMSTACK (*CS_TYPE)(int s, int flags, int protocol, void *vp);
51 int cerrno; /* current error code of this stack */
52 int iofile; /* UNIX file descriptor for iochannel */
53 int timeout; /* how long to wait for trailing blocks (ignored for now) */
54 void *cprivate;/* state info for lower stack */
55 int max_recv_bytes; /* max size of incoming package */
56 int state; /* current state */
60 #define CS_ST_OUTCON 3
61 #define CS_ST_DATAXFER 4
62 #define CS_ST_ACCEPT 5
63 #define CS_ST_CONNECTING 6
64 int newfd; /* storing new descriptor between listen and accept */
65 int flags; /* flags, blocking etc.. CS_FLAGS_.. */
66 unsigned io_pending; /* flag to signal read / write op is incomplete */
67 int event; /* current event */
73 enum oid_proto protocol; /* what application protocol are we talking? */
74 int (*f_put)(COMSTACK handle, char *buf, int size);
75 int (*f_get)(COMSTACK handle, char **buf, int *bufsize);
76 int (*f_more)(COMSTACK handle);
77 int (*f_connect)(COMSTACK handle, void *address);
78 int (*f_rcvconnect)(COMSTACK handle);
79 int (*f_bind)(COMSTACK handle, void *address, int mode);
82 int (*f_listen)(COMSTACK h, char *raddr, int *addrlen,
83 int (*check_ip)(void *cd, const char *a, int len, int type),
85 COMSTACK (*f_accept)(COMSTACK handle);
86 void (*f_close)(COMSTACK handle);
87 const char *(*f_addrstr)(COMSTACK handle);
88 void *(*f_straddr)(COMSTACK handle, const char *str);
89 int (*f_set_blocking)(COMSTACK handle, int blocking);
90 void *user; /* user defined data associated with COMSTACK */
93 #define cs_put(handle, buf, size) ((*(handle)->f_put)(handle, buf, size))
94 #define cs_get(handle, buf, size) ((*(handle)->f_get)(handle, buf, size))
95 #define cs_more(handle) ((*(handle)->f_more)(handle))
96 #define cs_connect(handle, address) ((*(handle)->f_connect)(handle, address))
97 #define cs_rcvconnect(handle) ((*(handle)->f_rcvconnect)(handle))
98 #define cs_bind(handle, ad, mo) ((*(handle)->f_bind)(handle, ad, mo))
99 #define cs_listen(handle, ap, al) ((*(handle)->f_listen)(handle, ap, al, 0, 0))
100 #define cs_listen_check(handle, ap, al, cf, cd) ((*(handle)->f_listen)(handle, ap, al, cf, cd))
101 #define cs_accept(handle) ((*(handle)->f_accept)(handle))
102 #define cs_close(handle) ((*(handle)->f_close)(handle))
103 #define cs_create(type, blocking, proto) ((*type)(-1, blocking, proto, 0))
104 #define cs_createbysocket(sock, type, blocking, proto) \
105 ((*type)(sock, blocking, proto, 0))
106 #define cs_type(handle) ((handle)->type)
107 #define cs_fileno(handle) ((handle)->iofile)
108 #define cs_getstate(handle) ((handle)->getstate)
109 #define cs_errno(handle) ((handle)->cerrno)
110 #define cs_getproto(handle) ((handle)->protocol)
111 #define cs_addrstr(handle) ((*(handle)->f_addrstr)(handle))
112 #define cs_straddr(handle, str) ((*(handle)->f_straddr)(handle, str))
113 #define cs_want_read(handle) ((handle)->io_pending & CS_WANT_READ)
114 #define cs_want_write(handle) ((handle)->io_pending & CS_WANT_WRITE)
115 #define cs_set_blocking(handle,blocking) ((handle)->f_set_blocking(handle, blocking))
117 #define CS_WANT_READ 1
118 #define CS_WANT_WRITE 2
120 YAZ_EXPORT int cs_look (COMSTACK);
121 YAZ_EXPORT const char *cs_strerror(COMSTACK h);
122 YAZ_EXPORT const char *cs_errmsg(int n);
123 YAZ_EXPORT COMSTACK cs_create_host(const char *type_and_host,
124 int blocking, void **vp);
126 YAZ_EXPORT COMSTACK cs_create_host_proxy(const char *vhost,
127 int blocking, void **vp,
128 const char *proxy_host);
129 YAZ_EXPORT void cs_get_host_args(const char *type_and_host, const char **args);
130 YAZ_EXPORT int cs_complete_auto_head(const char *buf, int len);
131 YAZ_EXPORT int cs_complete_auto(const char *buf, int len);
132 YAZ_EXPORT void *cs_get_ssl(COMSTACK cs);
133 YAZ_EXPORT int cs_set_ssl_ctx(COMSTACK cs, void *ctx);
134 YAZ_EXPORT int cs_set_ssl_certificate_file(COMSTACK cs, const char *fname);
135 YAZ_EXPORT int cs_get_peer_certificate_x509(COMSTACK cs, char **buf, int *len);
136 YAZ_EXPORT void cs_set_max_recv_bytes(COMSTACK cs, int max_recv_bytes);
137 YAZ_EXPORT int completeWAIS(const char *buf, int len);
139 YAZ_EXPORT void cs_print_session_info(COMSTACK cs);
153 #define CSLASTERROR CSBUFSIZE /* must be the value of last CS error */
155 /* backwards compatibility */
156 #define CS_SR PROTO_SR
157 #define CS_Z3950 PROTO_Z3950
159 #define CS_FLAGS_BLOCKING 1
160 #define CS_FLAGS_NUMERICHOST 2
168 * c-file-style: "Stroustrup"
169 * indent-tabs-mode: nil
171 * vim: shiftwidth=4 tabstop=8 expandtab