2 * Copyright (C) 1994, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.6 1995-03-15 15:18:52 quinn
8 * Little changes to better support nonblocking I/O
11 * Revision 1.5 1995/03/15 08:37:45 quinn
12 * Now we're pretty much set for nonblocking I/O.
14 * Revision 1.4 1995/03/14 16:59:48 quinn
17 * Revision 1.3 1995/03/14 11:30:15 quinn
20 * Revision 1.2 1995/03/14 10:28:03 quinn
21 * More work on demo server.
23 * Revision 1.1 1995/03/10 18:22:45 quinn
24 * The rudiments of an asynchronous server.
29 * Simple, static server. I wouldn't advise a static server unless you
30 * really have to, but it's great for debugging memory management. :)
48 #define DEFAULT_LISTENER "tcp:localhost:9999"
51 * handle incoming connect requests.
53 void listener(IOCHAN h, int event)
55 COMSTACK line = (COMSTACK) iochan_getdata(h);
58 if (event == EVENT_INPUT)
60 if (cs_listen(line, 0, 0) < 0)
62 if (cs_errno(line) == CSNODATA)
64 fprintf(stderr, "cs_listen failed.\n");
67 iochan_setevent(h, EVENT_OUTPUT);
68 iochan_setflags(h, EVENT_OUTPUT | EVENT_EXCEPT); /* set up for acpt */
70 else if (event == EVENT_OUTPUT)
75 if (!(new_line = cs_accept(line)))
77 fprintf(stderr, "Accept failed.\n");
80 if (!(new_chan = iochan_create(cs_fileno(new_line), ir_session,
83 fprintf(stderr, "Failed to create iochan\n");
86 if (!(newas = create_association(new_chan, new_line)))
88 fprintf(stderr, "Failed to create new assoc.\n");
91 iochan_setdata(new_chan, newas);
92 iochan_setflags(h, EVENT_INPUT | EVENT_EXCEPT); /* reset for listen */
96 fprintf(stderr, "Bad event on listener.\n");
102 * Set up a listening endpoint, and give it to the event-handler.
104 void add_listener(char *where)
108 char mode[100], addr[100];
112 fprintf(stderr, "Adding listener on %s\n", where);
113 if (!where || sscanf(where, "%[^:]:%s", mode, addr) != 2)
115 fprintf(stderr, "%s: Address format: ('tcp'|'osi')':'<address>.\n",
119 if (!strcmp(mode, "tcp"))
121 if (!(ap = tcpip_strtoaddr(addr)))
123 fprintf(stderr, "Address resolution failed for TCP.\n");
129 else if (!strcmp(mode, "osi"))
131 if (!(ap = mosi_strtoaddr(addr)))
133 fprintf(stderr, "Address resolution failed for TCP.\n");
141 fprintf(stderr, "You must specify either 'osi:' or 'tcp:'.\n");
144 if (!(l = cs_create(type, 0)))
146 fprintf(stderr, "Failed to create listener\n");
149 if (cs_bind(l, ap, CS_SERVER) < 0)
151 fprintf(stderr, "Failed to bind.\n");
155 if (!(lst = iochan_create(cs_fileno(l), listener, EVENT_INPUT |
158 fprintf(stderr, "Failed to create IOCHAN-type\n");
161 iochan_setdata(lst, l);
164 int main(int argc, char **argv)
166 int ret, listeners = 0;
170 while ((ret = options("l:", argv, argc, &arg)) != -2)
173 case 0: me = arg; break;
174 case 'l': add_listener(arg); listeners++; break;
176 fprintf(stderr, "Usage: %s [-l <listener-addr>]\n", me);
180 add_listener(DEFAULT_LISTENER);