void scan_r(char *ip,int s_port,int e_port,int *result)
{
int count = 0;
for (int i = s_port; i <= e_port; i++) {
printf("开始扫描%d号端口\n",i);
int r = -1;
if ((r=conn_nonb(ip, i, 100)) == 0) {
count++;
result[count]= i;
}
}
result[0] = count;
}
void scan_r(char *ip,int s_port,int e_port,int *result)
{
int count = 0;
for (int i = s_port; i <= e_port; i++) {
//printf("scan %d port\n",i);
;
int r = -1;
if ((r=conn_nonb(ip, i, TIMEOUT)) == 0) {
count++;
result[count]= i;
}
}
result[0] = count;
}
int
open_client_socket(const char* hostname, unsigned short int Port)
{
int sockfd;
struct addrinfo hints, *servinfo, *p;
int rv;
char port[8];
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
sprintf(port, "%hd", Port);
if((rv = getaddrinfo(hostname, port, &hints, &servinfo)) != 0) {
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv));
return -1;
}
for(p = servinfo; p != NULL; p = p->ai_next) {
if((sockfd = socket(p->ai_family, p->ai_socktype, p->ai_protocol)) == -1) {
perror("socket");
continue;
}
if(conn_nonb(sockfd, p->ai_addr, p->ai_addrlen) == -1) {
close(sockfd);
perror("conn_nonb");
printf("host:%s:%s\n", hostname, port);
continue;
}
break;
}
if (p == NULL) {
freeaddrinfo(servinfo);
return -1;
}
freeaddrinfo(servinfo);
return sockfd;
}
int main(int argc, const char * argv[])
{
// insert code here...
if (argc < 4) {
printf("参数错误，正确命令：扫描的IP地址 开始端口 结束端口 [线程数]\n");
return 0;
}
printf("端口扫描开始\n");
//int fd[65535];
char *ip = argv[1];
int s_port = atoi(argv[2]);
int e_port = atoi(argv[3]);
int open[65535];
int count = 0;
if(argc == 5)
{
//使用多线程方式
int ts = atoi(argv[4]);
res = (int **)malloc(sizeof(int*)*ts);
mulite_thread_run(ip, s_port, e_port,ts);
}else{
//使用单线程
for (int i = s_port; i <= e_port; i++) {
printf("开始扫描%d号端口\n",i);
int r = -1;
if ((r=conn_nonb(ip, i, 100)) == 0) {
open[count] = i;
count++;
}
}
}
return 0;
}
int main(int argc, const char * argv[])
{
// insert code here...
if (argc < 4) {
printf("arg input error，plz use: target_ip start_port end_port [theads num]\n");
return 0;
}
printf("----start----\n");
//int fd[65535];
char *ip = argv[1];
int s_port = atoi(argv[2]);
int e_port = atoi(argv[3]);
int open[65535];
int count = 0;
if(argc == 5)
{
//multiple threads
int ts = atoi(argv[4]);
res = (int **)malloc(sizeof(int*) * ts);
mulite_thread_run(ip, s_port, e_port,ts);
}else{
//single thread
for (int i = s_port; i <= e_port; i++) {
//printf("scan %d port\n",i);
int r = -1;
if ((r = conn_nonb(ip, i, TIMEOUT)) == 0) {
open[count] = i;
count++;
}
}
}
return 0;
}