?? test.c
字號:
#include <stdlib.h>#include <stdio.h>#include <string.h>#include <netinet/in.h>#include <linux/socket.h>#include <sys/ioctl.h>#include <linux/if_packet.h>#include <asm/types.h>#include <linux/if_ether.h>#include <linux/if_arp.h>#include <linux/wireless.h>int main(){ int sock; unsigned char buf[4000]; struct ifreq ifr; struct sockaddr_ll addr; int len,i,m=0; if( (sock = socket( PF_PACKET, SOCK_RAW, htons(ETH_P_ALL))) < 0 ) { printf("create socket error\n"); return -1; } memset( &ifr, 0, sizeof( ifr ) ); snprintf( ifr.ifr_name, sizeof( ifr.ifr_name ), "eth0" ); if( ioctl( sock, SIOCGIFINDEX, &ifr ) != 0 ) { perror( " SIOCGIFINDEX" ); exit(1); } memset( &addr, 0, sizeof( addr ) ); addr.sll_family = AF_PACKET; addr.sll_ifindex = ifr.ifr_ifindex; if( bind( sock, ( struct sockaddr * )&addr, sizeof( addr ) ) < 0 ) { perror( " bind" ); exit( 1 ); } while(1) { printf( "\n-------------------------------------\n" ); len = recvfrom( sock, buf, 4000, 0, NULL, NULL ); if ( len < 42 ) { if( len < 0 ) perror( "recvfrom :" ); else printf( "receive len < 42 \n" ); } else { if( len > 42000 ) { FILE *fp; char fn[100]; sprintf( fn, "f%02d.dat", m++ ); fp = fopen( fn, "wb" ); if( fp == NULL ) { printf( " Error open file \n" ); return -1; } fwrite( buf, 1, len, fp ); fclose( fp ); } printf( "************len: %d\n", len ); printf("destination MAC:%02x:%02x:%02x:%02x:%02x:%02x\n" ,buf[0], buf[1], buf[2], buf[3], buf[4], buf[5] ); printf( "source MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", buf[6], buf[7], buf[8], buf[9], buf[10], buf[11] ); printf( "Link flags: %02x %02x\n", buf[12], buf[13] ); printf( "packet content:\n" ); for( i=14; i<len; i++ ) { printf(" %02x",buf[i]); if( !((i-13)%16) ) printf( "\n" ); } } } closesocket( sock );}?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -