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,
22 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
24 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
25 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
26 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
27 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
28 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
29 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
30 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
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;
79 while ((ch = getopt(ac, av, "adln")) != EOF) {
85 NgSetDebug(NgSetDebug(-1) + 1);
114 if (NgMkSockNode(NULL, &csock, &dsock) < 0)
115 errx(EX_OSERR, "can't get sockets");
117 /* Connect socket node to specified node */
118 snprintf(ngc.path, sizeof(ngc.path), "%s", path);
119 snprintf(ngc.ourhook, sizeof(ngc.ourhook), NG_SOCK_HOOK_NAME);
120 snprintf(ngc.peerhook, sizeof(ngc.peerhook), "%s", hook);
122 if (NgSendMsg(csock, ".",
123 NGM_GENERIC_COOKIE, NGM_CONNECT, &ngc, sizeof(ngc)) < 0)
124 errx(EX_OSERR, "can't connect to node");
126 /* Close standard input if not reading from it */
138 FD_SET(dsock, &rfds);
140 /* Wait for something to happen */
141 if (select(FD_SETSIZE, &rfds, NULL, NULL, NULL) < 0)
142 err(EX_OSERR, "select");
144 /* Check data from socket */
145 if (FD_ISSET(dsock, &rfds)) {
149 /* Read packet from socket */
150 if ((rl = NgRecvData(dsock,
151 buf, sizeof(buf), NULL)) < 0)
152 err(EX_OSERR, "read(hook)");
154 errx(EX_OSERR, "read EOF from hook?!");
156 /* Write packet to stdout */
158 WriteAscii((u_char *) buf, rl);
159 else if ((wl = write(STDOUT_FILENO, buf, rl)) != rl) {
161 err(EX_OSERR, "write(stdout)");
164 "stdout: read %d, wrote %d",
170 if (NgSendData(dsock, NG_SOCK_HOOK_NAME, buf, rl) < 0)
171 err(EX_OSERR, "write(hook)");
175 /* Check data from stdin */
176 if (FD_ISSET(0, &rfds)) {
180 /* Read packet from stdin */
181 if ((rl = read(0, buf, sizeof(buf))) < 0)
182 err(EX_OSERR, "read(stdin)");
184 errx(EX_OSERR, "EOF(stdin)");
186 /* Write packet to socket */
187 if (NgSendData(dsock, NG_SOCK_HOOK_NAME, buf, rl) < 0)
188 err(EX_OSERR, "write(hook)");
194 * Dump data in hex and ASCII form
197 WriteAscii(u_char *buf, int len)
202 for (count = 0; count < len; count += 16) {
203 snprintf(sbuf, sizeof(sbuf), "%04x: ", count);
204 for (k = 0; k < 16; k++)
206 snprintf(sbuf + strlen(sbuf),
207 sizeof(sbuf) - strlen(sbuf),
208 "%02x ", buf[count + k]);
210 snprintf(sbuf + strlen(sbuf),
211 sizeof(sbuf) - strlen(sbuf), " ");
212 snprintf(sbuf + strlen(sbuf), sizeof(sbuf) - strlen(sbuf), " ");
213 for (k = 0; k < 16; k++)
214 if (count + k < len) {
215 ch = isprint(buf[count + k]) ?
216 buf[count + k] : '.';
217 snprintf(sbuf + strlen(sbuf),
218 sizeof(sbuf) - strlen(sbuf), "%c", ch);
220 snprintf(sbuf + strlen(sbuf),
221 sizeof(sbuf) - strlen(sbuf), " ");
222 snprintf(sbuf + strlen(sbuf),
223 sizeof(sbuf) - strlen(sbuf), "\n");
224 (void) write(STDOUT_FILENO, sbuf, strlen(sbuf));
231 * Display usage and exit
236 errx(EX_USAGE, "usage: nghook [-adln] path [hookname]");