新版本采用libipset库操作ipset集合，采用libpcap、libcap抓包获取源IP

main.c

@@ -1,5 +1,6 @@
 #include "main.h"
 
+char IPSET_LIST[256] = {0};
 
 void denyip_help()
 {
@@ -171,6 +172,7 @@ int main(int argc, char *argv[])
     pid1 = fork();              // 创建子进程
     if (pid1 == 0) {
         while (1) {
+
             FILE *fp = popen("ipset list root | grep \"Number of entries\" | cut -d : -f 2 | xargs", "r");
             char line[BUFFER] = { 0 };
             while (fgets(line, sizeof(line), fp) != NULL) {