生成一个判断报文是否含有ARP,IP,ICMP,UDP,TCP,HTTP协议的c代码
时间: 2023-05-17 21:03:49 浏览: 68
以下是一个简单的C代码,用于判断报文是否含有ARP、IP、ICMP、UDP、TCP、HTTP协议:
#include <stdio.h>
#include <string.h>
int main() {
char packet[1024]; // 假设报文最大长度为1024
int has_arp = 0, has_ip = 0, has_icmp = 0, has_udp = 0, has_tcp = 0, has_http = 0;
// 读取报文
printf("请输入报文内容:\n");
fgets(packet, 1024, stdin);
// 判断是否含有各种协议
if (strstr(packet, "ARP")) {
has_arp = 1;
}
if (strstr(packet, "IP")) {
has_ip = 1;
}
if (strstr(packet, "ICMP")) {
has_icmp = 1;
}
if (strstr(packet, "UDP")) {
has_udp = 1;
}
if (strstr(packet, "TCP")) {
has_tcp = 1;
}
if (strstr(packet, "HTTP")) {
has_http = 1;
}
// 输出结果
printf("该报文%sARP协议,%sIP协议,%sICMP协议,%sUDP协议,%sTCP协议,%sHTTP协议。\n",
has_arp ? "含有" : "不含",
has_ip ? "含有" : "不含",
has_icmp ? "含有" : "不含",
has_udp ? "含有" : "不含",
has_tcp ? "含有" : "不含",
has_http ? "含有" : "不含");
return 0;
}