93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/*
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* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef lint
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static const char copyright[] _U_ =
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"@(#) Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <pcap.h>
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static const char *program_name;
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/* Forwards */
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static void error(const char *, ...);
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int
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main(int argc, char **argv)
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{
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const char *cp;
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pcap_t *pd;
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char ebuf[PCAP_ERRBUF_SIZE];
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int status;
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if ((cp = strrchr(argv[0], '/')) != NULL)
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program_name = cp + 1;
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else
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program_name = argv[0];
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if (argc != 2) {
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fprintf(stderr, "Usage: %s <device>\n", program_name);
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return 2;
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}
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pd = pcap_create(argv[1], ebuf);
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if (pd == NULL)
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error("%s", ebuf);
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status = pcap_can_set_rfmon(pd);
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if (status < 0) {
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if (status == PCAP_ERROR)
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error("%s: pcap_can_set_rfmon failed: %s", argv[1],
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pcap_geterr(pd));
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else
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error("%s: pcap_can_set_rfmon failed: %s", argv[1],
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pcap_statustostr(status));
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return 1;
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}
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printf("%s: Monitor mode %s be set\n", argv[1], status ? "can" : "cannot");
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return 0;
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}
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/* VARARGS */
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static void
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error(const char *fmt, ...)
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{
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va_list ap;
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(void)fprintf(stderr, "%s: ", program_name);
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va_start(ap, fmt);
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(void)vfprintf(stderr, fmt, ap);
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va_end(ap);
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if (*fmt) {
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fmt += strlen(fmt);
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if (fmt[-1] != '\n')
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(void)fputc('\n', stderr);
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}
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exit(1);
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/* NOTREACHED */
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}
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