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 1.16 1997-05-14 06:53:37 adam
30 * Revision 1.15 1996/07/06 19:58:32 quinn
31 * System headerfiles gathered in yconfig
33 * Revision 1.14 1996/02/10 12:23:41 quinn
34 * Enable inetd operations fro TCP/IP stack
36 * Revision 1.13 1995/11/01 13:54:33 quinn
39 * Revision 1.12 1995/10/30 12:41:27 quinn
40 * Added hostname lookup for server.
42 * Revision 1.11 1995/09/29 17:12:01 quinn
45 * Revision 1.10 1995/09/29 17:01:48 quinn
48 * Revision 1.9 1995/09/28 10:12:36 quinn
49 * Windows-support changes
51 * Revision 1.8 1995/09/27 15:02:46 quinn
52 * Modified function heads & prototypes.
54 * Revision 1.7 1995/06/19 12:38:24 quinn
55 * Reorganized include-files. Added small features.
57 * Revision 1.6 1995/05/30 10:54:51 quinn
58 * Added some backwards compatibility to the comstack (CS_SR->PROTO_SR)
60 * Revision 1.5 1995/05/29 08:11:31 quinn
61 * Moved oid from odr/asn to util.
63 * Revision 1.4 1995/05/16 08:50:29 quinn
64 * License, documentation, and memory fixes
66 * Revision 1.3 1995/04/20 15:12:44 quinn
69 * Revision 1.2 1995/04/17 11:28:17 quinn
72 * Revision 1.1 1995/03/30 09:39:40 quinn
73 * Moved .h files to include directory
75 * Revision 1.11 1995/03/27 08:36:05 quinn
76 * Some work on nonblocking operation in xmosi.c and rfct.c.
77 * Added protocol parameter to cs_create()
79 * Revision 1.10 1995/03/20 09:47:12 quinn
80 * Added server-side support to xmosi.c
81 * Fixed possible problems in rfct
84 * Revision 1.9 1995/03/15 15:36:27 quinn
85 * Mods to support nonblocking I/O
87 * Revision 1.8 1995/03/14 17:00:07 quinn
88 * Bug-fixes - added tracing info to tcpip.c
90 * Revision 1.7 1995/03/14 10:28:35 quinn
91 * Adding server-side support to tcpip.c and fixing bugs in nonblocking I/O
93 * Revision 1.6 1995/03/07 16:29:45 quinn
96 * Revision 1.5 1995/03/07 10:39:31 quinn
99 * Revision 1.4 1995/03/06 16:49:29 adam
100 * COMSTACK type inspection possible with cs_type.
102 * Revision 1.3 1995/02/14 11:54:48 quinn
103 * Beginning to add full CCL.
105 * Revision 1.2 1995/02/10 18:58:10 quinn
106 * Fixed tcpip_get (formerly tcpip_read).
107 * Turned tst (cli) into a proper, event-driven thing.
109 * Revision 1.1 1995/02/09 15:51:51 quinn
126 #define COMSTACK_DEFAULT_TIMEOUT -1 /* not used yet */
129 typedef struct comstack *COMSTACK;
130 typedef COMSTACK (*CS_TYPE)(int s, int blocking, int protocol);
135 int cerrno; /* current error code of this stack */
136 char *stackerr;/* current lower-layer error string, or null if none */
137 int iofile; /* UNIX file descriptor for iochannel */
138 int timeout; /* how long to wait for trailing blocks (ignored for now) */
139 void *cprivate;/* state info for lower stack */
140 int more; /* connection has extra data in buffer */
141 int state; /* current state */
146 #define CS_DATAXFER 4
147 int newfd; /* storing new descriptor between listen and accept */
148 int blocking; /* is this link (supposed to be) blocking? */
149 int event; /* current event */
155 enum oid_proto protocol; /* what application protocol are we talking? */
156 int (*f_look)(COMSTACK handle);
157 int (*f_put)(COMSTACK handle, char *buf, int size);
158 int (*f_get)(COMSTACK handle, char **buf, int *bufsize);
159 int (*f_more)(COMSTACK handle);
160 int (*f_connect)(COMSTACK handle, void *address);
161 int (*f_rcvconnect)(COMSTACK handle);
162 int (*f_bind)(COMSTACK handle, void *address, int mode);
165 int (*f_listen)(COMSTACK handle, char *addrp, int *addrlen);
166 COMSTACK (*f_accept)(COMSTACK handle);
167 int (*f_close)(COMSTACK handle);
168 char *(*f_addrstr)(COMSTACK handle);
171 #define cs_put(handle, buf, size) ((*(handle)->f_put)(handle, buf, size))
172 #define cs_get(handle, buf, size) ((*(handle)->f_get)(handle, buf, size))
173 #define cs_more(handle) ((*(handle)->f_more)(handle))
174 #define cs_connect(handle, address) ((*(handle)->f_connect)(handle, address))
175 #define cs_rcvconnect(handle) ((*(handle)->f_rcvconnect)(handle))
176 #define cs_bind(handle, ad, mo) ((*(handle)->f_bind)(handle, ad, mo))
177 #define cs_listen(handle, ap, al) ((*(handle)->f_listen)(handle, ap, al))
178 #define cs_accept(handle) ((*(handle)->f_accept)(handle))
179 #define cs_close(handle) ((*(handle)->f_close)(handle))
180 #define cs_create(type, blocking, proto) ((*type)(-1, blocking, proto))
181 #define cs_createbysocket(sock, type, blocking, proto) \
182 ((*type)(sock, blocking, proto))
183 #define cs_type(handle) ((handle)->type)
184 #define cs_fileno(handle) ((handle)->iofile)
185 #define cs_stackerr(handle) ((handle)->stackerr)
186 #define cs_getstate(handle) ((handle)->getstate)
187 #define cs_errno(handle) ((handle)->cerrno)
188 #define cs_getproto(handle) ((handle)->protocol)
189 #define cs_addrstr(handle) ((*(handle)->f_addrstr)(handle))
191 const char *cs_strerror(COMSTACK h);
192 const char *cs_errmsg(int n);
204 extern char *cs_errlist[];
206 /* backwards compatibility */
207 #define CS_SR PROTO_SR
208 #define CS_Z3950 PROTO_Z3950