2 * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
23 static const char copyright[] =
24 "@(#) Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000\n\
25 The Regents of the University of California. All rights reserved.\n";
36 #define MAXIMUM_SNAPLEN 65535
38 static char *program_name;
41 static void usage(void) __attribute__((noreturn));
42 static void error(const char *, ...);
43 static void warning(const char *, ...);
50 main(int argc, char **argv)
53 register char *cp, *device;
54 int dorfmon, dopromisc, snaplen, useactivate, bufsize;
55 char ebuf[PCAP_ERRBUF_SIZE];
62 snaplen = MAXIMUM_SNAPLEN;
65 if ((cp = strrchr(argv[0], '/')) != NULL)
66 program_name = cp + 1;
68 program_name = argv[0];
71 while ((op = getopt(argc, argv, "i:Ips:aB:")) != -1) {
80 useactivate = 1; /* required for rfmon */
90 snaplen = strtol(optarg, &end, 0);
91 if (optarg == end || *end != '\0'
92 || snaplen < 0 || snaplen > MAXIMUM_SNAPLEN)
93 error("invalid snaplen %s", optarg);
94 else if (snaplen == 0)
95 snaplen = MAXIMUM_SNAPLEN;
100 bufsize = atoi(optarg)*1024;
102 error("invalid packet buffer size %s", optarg);
103 useactivate = 1; /* required for bufsize */
117 pd = pcap_create(device, ebuf);
120 status = pcap_set_snaplen(pd, snaplen);
122 error("%s: pcap_set_snaplen failed: %s",
123 device, pcap_statustostr(status));
125 status = pcap_set_promisc(pd, 1);
127 error("%s: pcap_set_promisc failed: %s",
128 device, pcap_statustostr(status));
131 status = pcap_set_rfmon(pd, 1);
133 error("%s: pcap_set_rfmon failed: %s",
134 device, pcap_statustostr(status));
136 status = pcap_set_timeout(pd, 1000);
138 error("%s: pcap_set_timeout failed: %s",
139 device, pcap_statustostr(status));
141 status = pcap_set_buffer_size(pd, bufsize);
143 error("%s: pcap_set_buffer_size failed: %s",
144 device, pcap_statustostr(status));
146 status = pcap_activate(pd);
149 * pcap_activate() failed.
151 error("%s: %s\n(%s)", device,
152 pcap_statustostr(status), pcap_geterr(pd));
153 } else if (status > 0) {
155 * pcap_activate() succeeded, but it's warning us
156 * of a problem it had.
158 warning("%s: %s\n(%s)", device,
159 pcap_statustostr(status), pcap_geterr(pd));
163 pd = pcap_open_live(device, 65535, 0, 1000, ebuf);
170 exit(status < 0 ? 1 : 0);
176 (void)fprintf(stderr,
177 "Usage: %s [ -Ipa ] [ -i interface ] [ -s snaplen ] [ -B bufsize ]\n",
184 error(const char *fmt, ...)
188 (void)fprintf(stderr, "%s: ", program_name);
190 (void)vfprintf(stderr, fmt, ap);
195 (void)fputc('\n', stderr);
203 warning(const char *fmt, ...)
207 (void)fprintf(stderr, "%s: WARNING: ", program_name);
209 (void)vfprintf(stderr, fmt, ap);
214 (void)fputc('\n', stderr);