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 1.4 1995-05-16 08:50:29 quinn
28 * License, documentation, and memory fixes
30 * Revision 1.3 1995/04/20 15:12:44 quinn
33 * Revision 1.2 1995/04/17 11:28:17 quinn
36 * Revision 1.1 1995/03/30 09:39:40 quinn
37 * Moved .h files to include directory
39 * Revision 1.11 1995/03/27 08:36:05 quinn
40 * Some work on nonblocking operation in xmosi.c and rfct.c.
41 * Added protocol parameter to cs_create()
43 * Revision 1.10 1995/03/20 09:47:12 quinn
44 * Added server-side support to xmosi.c
45 * Fixed possible problems in rfct
48 * Revision 1.9 1995/03/15 15:36:27 quinn
49 * Mods to support nonblocking I/O
51 * Revision 1.8 1995/03/14 17:00:07 quinn
52 * Bug-fixes - added tracing info to tcpip.c
54 * Revision 1.7 1995/03/14 10:28:35 quinn
55 * Adding server-side support to tcpip.c and fixing bugs in nonblocking I/O
57 * Revision 1.6 1995/03/07 16:29:45 quinn
60 * Revision 1.5 1995/03/07 10:39:31 quinn
63 * Revision 1.4 1995/03/06 16:49:29 adam
64 * COMSTACK type inspection possible with cs_type.
66 * Revision 1.3 1995/02/14 11:54:48 quinn
67 * Beginning to add full CCL.
69 * Revision 1.2 1995/02/10 18:58:10 quinn
70 * Fixed tcpip_get (formerly tcpip_read).
71 * Turned tst (cli) into a proper, event-driven thing.
73 * Revision 1.1 1995/02/09 15:51:51 quinn
83 #define COMSTACK_DEFAULT_TIMEOUT -1
86 typedef struct comstack *COMSTACK;
87 typedef COMSTACK (*CS_TYPE)(int blocking, int protocol);
92 int errno; /* current error code of this stack */
93 char *stackerr;/* current lower-layer error string, or null if none */
94 int iofile; /* UNIX file descriptor for iochannel */
95 int timeout; /* how long to wait for trailing blocks */
96 void *private; /* state info for lower stack */
97 int more; /* connection has extra data in buffer */
98 int state; /* current state */
103 #define CS_DATAXFER 4
104 int newfd; /* storing new descriptor between listen and accept */
105 int blocking; /* is this link (supposed to be) blocking? */
106 int event; /* current event */
112 int protocol; /* what application protocol are we talking? */
115 int (*f_look)(COMSTACK handle);
116 int (*f_put)(COMSTACK handle, char *buf, int size);
117 int (*f_get)(COMSTACK handle, char **buf, int *bufsize);
118 int (*f_more)(COMSTACK handle);
119 int (*f_connect)(COMSTACK handle, void *address);
120 int (*f_rcvconnect)(COMSTACK handle);
121 int (*f_bind)(COMSTACK handle, void *address, int mode);
124 int (*f_listen)(COMSTACK handle, char *addrp, int *addrlen);
125 COMSTACK (*f_accept)(COMSTACK handle);
126 int (*f_close)(COMSTACK handle);
129 #define cs_put(handle, buf, size) ((*(handle)->f_put)(handle, buf, size))
130 #define cs_get(handle, buf, size) ((*(handle)->f_get)(handle, buf, size))
131 #define cs_more(handle) ((*(handle)->f_more)(handle))
132 #define cs_connect(handle, address) ((*(handle)->f_connect)(handle, address))
133 #define cs_rcvconnect(handle) ((*(handle)->f_rcvconnect)(handle))
134 #define cs_bind(handle, ad, mo) ((*(handle)->f_bind)(handle, ad, mo))
135 #define cs_listen(handle, ap, al) ((*(handle)->f_listen)(handle, ap, al))
136 #define cs_accept(handle) ((*(handle)->f_accept)(handle))
137 #define cs_close(handle) ((*(handle)->f_close)(handle))
138 #define cs_create(type, blocking, proto) ((*type)(blocking, proto))
139 #define cs_type(handle) ((handle)->type)
140 #define cs_fileno(handle) ((handle)->iofile)
141 #define cs_stackerr(handle) ((handle)->stackerr)
142 #define cs_getstate(handle) ((handle)->getstate)
143 #define cs_errno(handle) ((handle)->errno)
144 #define cs_getproto(handle) ((handle)->protocol)
146 const char *cs_strerror(COMSTACK h);
158 extern char *cs_errlist[];