5 * Copyright (c) 1996-1999 Whistle Communications, Inc.
8 * Subject to the following obligations and disclaimer of warranty, use and
9 * redistribution of this software, in source or object code forms, with or
10 * without modifications are expressly permitted by Whistle Communications;
11 * provided, however, that:
12 * 1. Any and all reproductions of the source or object code must include the
13 * copyright notice above and the following disclaimer of warranties; and
14 * 2. No rights are granted, in any manner or form, to use Whistle
15 * Communications, Inc. trademarks, including the mark "WHISTLE
16 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as
17 * such appears in the above copyright notice or in the software.
19 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
20 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
21 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
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37 * $FreeBSD: src/usr.sbin/nghook/main.c,v 1.4 1999/11/30 02:09:36 archie Exp $
38 * $Whistle: main.c,v 1.9 1999/01/20 00:26:26 archie Exp $
50 #include <sys/types.h>
51 #include <sys/socket.h>
52 #include <sys/select.h>
56 #define DEFAULT_HOOKNAME "debug"
57 #define NG_SOCK_HOOK_NAME "hook"
59 #define BUF_SIZE (64 * 1024)
61 static void WriteAscii(u_char * buf, int len);
62 static void Usage(void);
68 main(int ac, char *av[])
70 struct ngm_connect ngc;
71 char *path = NULL, *hook = DEFAULT_HOOKNAME;
77 while ((ch = getopt(ac, av, "da")) != EOF) {
80 NgSetDebug(NgSetDebug(-1) + 1);
106 if (NgMkSockNode(NULL, &csock, &dsock) < 0)
107 errx(EX_OSERR, "can't get sockets");
109 /* Connect socket node to specified node */
110 snprintf(ngc.path, sizeof(ngc.path), "%s", path);
111 snprintf(ngc.ourhook, sizeof(ngc.ourhook), NG_SOCK_HOOK_NAME);
112 snprintf(ngc.peerhook, sizeof(ngc.peerhook), "%s", hook);
114 if (NgSendMsg(csock, ".",
115 NGM_GENERIC_COOKIE, NGM_CONNECT, &ngc, sizeof(ngc)) < 0)
116 errx(EX_OSERR, "can't connect to node");
125 FD_SET(dsock, &rfds);
127 /* Wait for something to happen */
128 if (select(FD_SETSIZE, &rfds, NULL, NULL, NULL) < 0)
129 err(EX_OSERR, "select");
131 /* Check data from socket */
132 if (FD_ISSET(dsock, &rfds)) {
136 /* Read packet from socket */
137 if ((rl = NgRecvData(dsock,
138 buf, sizeof(buf), NULL)) < 0)
139 err(EX_OSERR, "read(hook)");
141 errx(EX_OSERR, "read EOF from hook?!");
143 /* Write packet to stdout */
145 WriteAscii((u_char *) buf, rl);
146 else if ((wl = write(1, buf, rl)) != rl) {
148 err(EX_OSERR, "write(stdout)");
151 "stdout: read %d, wrote %d",
157 /* Check data from stdin */
158 if (FD_ISSET(0, &rfds)) {
162 /* Read packet from stdin */
163 if ((rl = read(0, buf, sizeof(buf))) < 0)
164 err(EX_OSERR, "read(stdin)");
166 errx(EX_OSERR, "EOF(stdin)");
168 /* Write packet to socket */
169 if (NgSendData(dsock, NG_SOCK_HOOK_NAME, buf, rl) < 0)
170 err(EX_OSERR, "write(hook)");
176 * Dump data in hex and ASCII form
179 WriteAscii(u_char *buf, int len)
184 for (count = 0; count < len; count += 16) {
185 snprintf(sbuf, sizeof(sbuf), "%04x: ", count);
186 for (k = 0; k < 16; k++)
188 snprintf(sbuf + strlen(sbuf),
189 sizeof(sbuf) - strlen(sbuf),
190 "%02x ", buf[count + k]);
192 snprintf(sbuf + strlen(sbuf),
193 sizeof(sbuf) - strlen(sbuf), " ");
194 snprintf(sbuf + strlen(sbuf), sizeof(sbuf) - strlen(sbuf), " ");
195 for (k = 0; k < 16; k++)
196 if (count + k < len) {
197 ch = isprint(buf[count + k]) ?
198 buf[count + k] : '.';
199 snprintf(sbuf + strlen(sbuf),
200 sizeof(sbuf) - strlen(sbuf), "%c", ch);
202 snprintf(sbuf + strlen(sbuf),
203 sizeof(sbuf) - strlen(sbuf), " ");
204 snprintf(sbuf + strlen(sbuf),
205 sizeof(sbuf) - strlen(sbuf), "\n");
206 (void) write(1, sbuf, strlen(sbuf));
213 * Display usage and exit
218 errx(EX_USAGE, "usage: nghook [-da] path [hookname]");