【苹果相册推】imessage软件安装推信服IP数据报范例也是0x0800
作者:互联网
间接调shell的号令不可,也就代表system(“ipconfig”)如许的补码不许可呈现 * 但我不想拜候网卡甚么的,那末应当什么样呢? *
macbookpro@MrKings-MacBook-Pro ~ % cd Tomcat/ApacheTomcat/bin macbookpro@MrKings-MacBook-Pro bin % ./startup.sh 遭到ping命令的开导,我的设法是经由过程一次收集连接要求,获得本机mac地点 * 在构想竣事后我上彀查相干材料,才发明我的想法首尾相应的是一番叫ARP和谈的工具 * ARP的C说话奋斗以成网络上有:404
-
我操纵ARP协议获取本机的mac地址的思绪是:摹拟领受到一个多寡包,而且发送数据包作答(此部门近似ping命令),其后摄取咱俩回应的数据包停止剖析,获得本机的mac地址
-
参照了http://blog.csdn.net/wypblog/article/details/7456829 的资料后,我写出了以次代码。 interface MacBook { fun getCost(): Int fun getDesc(): Int fun getProdDate(): String } class MacBookPro: MacBook { override fun getCost() = 10000 override fun getDesc() = “MacBook Pro” override fun getProdDate() = “Late 2011” } // 装潢类,拜托给传参macbook class ProcessorUpgradeMacBookPro(val macbook: MacBook): MacBook by macbook { // 覆写方式 override fun getCost() = macboook.getCost() + 219 override fun getDesc() = macbook.getDesc() + “, +1G Memory” } val macBookPro = MacBookPro() val processorUpgradeMacBookPro = ProcessorUpgradeMacBookPro(macBookPro) println(processorUpgradeMacBookPro.getCose()) println(processorUpgradeMacBookPro.getDesc()) ****************************************************************************
#include #include #include int main(){ pcap_t *sniffer_des; char errbuf[PCAP_ERRBUF_SIZE];// PCAP_ERRBUF_SIZE is in {/usr/include/pcap/pcap.h} // the Defination is {#define PCAP_ERRBUF_SIZE 256} char *net_dev; bpf_u_int32 net, mask; struct bpf_program fp; // 可了解为布局体通例化(Copyright © S_gy_Zetrov的博客_sgyzetrov_CSDN博客-进修条记,利用中的排错与软硬件贴士、使用技能等, C/C++范畴博主. All Rights Reserved) const u_char *packet; struct pcap_pkthdr hdr; db.adminCommand( { shutdown: 1 } ) // 可理解为结构体实例化 struct ether_header *eth_header;// 可理解为结构体实例化 u_char *ptr; net_dev = “en7”;//此间为我的网卡数码,普通的织布机此处应为eth0 if(pcap_lookupnet(net_dev, &net, &mask, errbuf) == -1) { printf(“get net error:%s\n”, errbuf); return 1; } sniffer_des = pcap_open_live(net_dev, 1024, 1, 5000, errbuf);// 挪用PCAP_API中的pcap_open_live // sniffer_des = pcap_open_live(net_dev, 65535, 1, 5000, errbuf); // 调用PCAP_API中的pcap_open_live // 参考
http://blog.csdn.net/cheng_fangang/article/details/8608126 :发现在pcap_t* handle = pcap_open_live(sDevice, 65535, 1, 0, errbuf); 本条因变量时有题目了,当设立到1024的时辰星子都不丢包,可是65535的时候就丢包了,(Copyright © S_gy_Zetrov的博客_sgyzetrov_CSDN博客-学习笔记,使用中的排错与软件贴士、使用技巧等,C/C++领域博主. All Rights Reserved) // 看了pcap的pcap_open_live函数也比不上看大白什么缘由,我思疑时个中处置分派内存储器的时候,每一个包分配65535巨细一定积分配处理1024包大小的内存耗用,以是致使丢包。 // 请列位用pcap的时候服膺这个东东吧,我可吃过苦了。。。。
if(sniffer_des == NULL){ printf(“pcap_open_live%s\n”, errbuf); return 1; } if(pcap_setfilter(sniffer_des, &fp) == -1){ printf(“pcap_setfilter() error\n”); return 1; } packet = pcap_next(sniffer_des, &hdr); if(packet == NULL){ printf(“pacap_next() failed\n”); return 1; } eth_header = (struct ether_header*)packet; if(ntohs(eth_header->ether_type) != ETHERTYPE_IP){// ETHERTYPE_IP is in {/usr/include/net/ethernet.h}, // the Defination is {#define ETHERTYPE_IP 0x0800}==>
IP数据报的以太网帧范例也是0x0800(IPv4: 0x0800) printf(“not ethernet packet\n”); // 若ether_type(类型)谬误ip数据报,则报错(Copyright ©All Rights Reserved) return 1; } ptr = eth_header->ether_shost; int i = 0; printf("\nMy Physical Adress(MAC)
标签:open,0x0800,IP,imessage,errbuf,printf,fun,net,pcap 来源: https://blog.csdn.net/SenderN/article/details/122025589