2 * Copyright (c) 1995, Index Data.
4 * Permission to use, copy, modify, distribute, and sell this software and
5 * its documentation, in whole or in part, for any purpose, is hereby granted,
8 * 1. This copyright and permission notice appear in all copies of the
9 * software and its documentation. Notices of copyright or attribution
10 * which appear at the beginning of any file must remain unchanged.
12 * 2. The name of Index Data or the individual authors may not be used to
13 * endorse or promote products derived from this software without specific
14 * prior written permission.
16 * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
18 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
19 * IN NO EVENT SHALL INDEX DATA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
20 * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES
21 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR
22 * NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
26 * $Log: comstack.h,v $
27 * Revision 1.12 1995-10-30 12:41:27 quinn
28 * Added hostname lookup for server.
30 * Revision 1.11 1995/09/29 17:12:01 quinn
33 * Revision 1.10 1995/09/29 17:01:48 quinn
36 * Revision 1.9 1995/09/28 10:12:36 quinn
37 * Windows-support changes
39 * Revision 1.8 1995/09/27 15:02:46 quinn
40 * Modified function heads & prototypes.
42 * Revision 1.7 1995/06/19 12:38:24 quinn
43 * Reorganized include-files. Added small features.
45 * Revision 1.6 1995/05/30 10:54:51 quinn
46 * Added some backwards compatibility to the comstack (CS_SR->PROTO_SR)
48 * Revision 1.5 1995/05/29 08:11:31 quinn
49 * Moved oid from odr/asn to util.
51 * Revision 1.4 1995/05/16 08:50:29 quinn
52 * License, documentation, and memory fixes
54 * Revision 1.3 1995/04/20 15:12:44 quinn
57 * Revision 1.2 1995/04/17 11:28:17 quinn
60 * Revision 1.1 1995/03/30 09:39:40 quinn
61 * Moved .h files to include directory
63 * Revision 1.11 1995/03/27 08:36:05 quinn
64 * Some work on nonblocking operation in xmosi.c and rfct.c.
65 * Added protocol parameter to cs_create()
67 * Revision 1.10 1995/03/20 09:47:12 quinn
68 * Added server-side support to xmosi.c
69 * Fixed possible problems in rfct
72 * Revision 1.9 1995/03/15 15:36:27 quinn
73 * Mods to support nonblocking I/O
75 * Revision 1.8 1995/03/14 17:00:07 quinn
76 * Bug-fixes - added tracing info to tcpip.c
78 * Revision 1.7 1995/03/14 10:28:35 quinn
79 * Adding server-side support to tcpip.c and fixing bugs in nonblocking I/O
81 * Revision 1.6 1995/03/07 16:29:45 quinn
84 * Revision 1.5 1995/03/07 10:39:31 quinn
87 * Revision 1.4 1995/03/06 16:49:29 adam
88 * COMSTACK type inspection possible with cs_type.
90 * Revision 1.3 1995/02/14 11:54:48 quinn
91 * Beginning to add full CCL.
93 * Revision 1.2 1995/02/10 18:58:10 quinn
94 * Fixed tcpip_get (formerly tcpip_read).
95 * Turned tst (cli) into a proper, event-driven thing.
97 * Revision 1.1 1995/02/09 15:51:51 quinn
109 #define COMSTACK_DEFAULT_TIMEOUT -1 /* not used yet */
112 typedef struct comstack *COMSTACK;
113 typedef COMSTACK (*CS_TYPE)(int blocking, int protocol);
118 int cerrno; /* current error code of this stack */
119 char *stackerr;/* current lower-layer error string, or null if none */
120 int iofile; /* UNIX file descriptor for iochannel */
121 int timeout; /* how long to wait for trailing blocks (ignored for now) */
122 void *private; /* state info for lower stack */
123 int more; /* connection has extra data in buffer */
124 int state; /* current state */
129 #define CS_DATAXFER 4
130 int newfd; /* storing new descriptor between listen and accept */
131 int blocking; /* is this link (supposed to be) blocking? */
132 int event; /* current event */
138 enum oid_proto protocol; /* what application protocol are we talking? */
139 int (*f_look)(COMSTACK handle);
140 int (*f_put)(COMSTACK handle, char *buf, int size);
141 int (*f_get)(COMSTACK handle, char **buf, int *bufsize);
142 int (*f_more)(COMSTACK handle);
143 int (*f_connect)(COMSTACK handle, void *address);
144 int (*f_rcvconnect)(COMSTACK handle);
145 int (*f_bind)(COMSTACK handle, void *address, int mode);
148 int (*f_listen)(COMSTACK handle, char *addrp, int *addrlen);
149 COMSTACK (*f_accept)(COMSTACK handle);
150 int (*f_close)(COMSTACK handle);
151 char *(*f_addrstr)(COMSTACK handle);
154 #define cs_put(handle, buf, size) ((*(handle)->f_put)(handle, buf, size))
155 #define cs_get(handle, buf, size) ((*(handle)->f_get)(handle, buf, size))
156 #define cs_more(handle) ((*(handle)->f_more)(handle))
157 #define cs_connect(handle, address) ((*(handle)->f_connect)(handle, address))
158 #define cs_rcvconnect(handle) ((*(handle)->f_rcvconnect)(handle))
159 #define cs_bind(handle, ad, mo) ((*(handle)->f_bind)(handle, ad, mo))
160 #define cs_listen(handle, ap, al) ((*(handle)->f_listen)(handle, ap, al))
161 #define cs_accept(handle) ((*(handle)->f_accept)(handle))
162 #define cs_close(handle) ((*(handle)->f_close)(handle))
163 #define cs_create(type, blocking, proto) ((*type)(blocking, proto))
164 #define cs_type(handle) ((handle)->type)
165 #define cs_fileno(handle) ((handle)->iofile)
166 #define cs_stackerr(handle) ((handle)->stackerr)
167 #define cs_getstate(handle) ((handle)->getstate)
168 #define cs_errno(handle) ((handle)->cerrno)
169 #define cs_getproto(handle) ((handle)->protocol)
170 #define cs_addrstr(handle) ((*(handle)->f_addrstr)(handle))
172 const char *cs_strerror(COMSTACK h);
173 const char *cs_errmsg(int n);
185 extern char *cs_errlist[];
187 /* backwards compatibility */
188 #define CS_SR PROTO_SR
189 #define CS_Z3950 PROTO_Z3950