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wtap.c
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Editing: wtap.c
/*- * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any * redistribution must be conditioned upon including a substantially * similar Disclaimer requirement for further binary redistribution. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGES. * * $FreeBSD$ */ #include <stdio.h> #include <stdlib.h> #include <fcntl.h> #include <sys/ioctl.h> #include "if_wtapioctl.h" static int dev = -1; static void create(int id) { if(ioctl(dev, WTAPIOCTLCRT, &id) < 0){ printf("error creating wtap with id=%d\n", id); } } static void delete(int id) { if(ioctl(dev, WTAPIOCTLDEL, &id) < 0){ printf("error deleting wtap with id=%d\n", id); } } int main( int argc, const char* argv[]) { if(argc != 3){ printf("usage: %s [c | d] wtap_id\n", argv[0]); return -1; } int id = atoi(argv[2]); if(!(id >= 0 && id < 64)){ printf("wtap_id must be between 0 and 7\n"); return -1; } dev = open("/dev/wtapctl", O_RDONLY); if(dev < 0){ printf("error opening wtapctl cdev\n"); return -1; } switch((char)*argv[1]){ case 'c': create(id); break; case 'd': delete(id); break; default: printf("wtap ioctl: unknown command '%c'\n", *argv[1]); return -1; } return 0; }
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