socket close

Posted 2020-10-21 dosomethingyoulike

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#include <iostream>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

#include <unistd.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

bool server(char *ip,int port){
    int socketfd = 0;
    if(-1 ==(socketfd = socket(AF_INET,SOCK_STREAM,0))){
        printf("create socket faile,errno:%d\\n",errno);
        return false;
    }
    sockaddr_in serverAddr;
    memset(&serverAddr,0,sizeof(serverAddr));
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_port = htons(port);
    serverAddr.sin_addr.s_addr = inet_addr(ip);
    if(-1==bind(socketfd,(struct sockaddr *)&serverAddr,sizeof(serverAddr))){
        printf("bind socket fail,errno:%d\\n",errno);
        return false;
    }
    if(-1==listen(socketfd,10)){
        printf("listen socket fail,errno:%d\\n",errno);
        return false;
    }
    printf("server has started...\\n");
    int confd = 0;
    sockaddr_in clientAddr;
    memset(&clientAddr,0,sizeof(clientAddr));
    int sockLen = 0;
    if(-1==(confd = accept(socketfd,(struct sockaddr *)&clientAddr,(socklen_t*)&sockLen))){
        printf("accept socket fail,errno:%d\\n",errno);
        return false;
    }
    int len = 0;
    while(1){
        char recvBuf[64]={0};
        len = recv(confd,recvBuf,sizeof(recvBuf),0);
        printf("len:%d,str:%s\\n",len,recvBuf);
        if(len ==0){
            printf("client shutdown socket...\\n");
            break;
        }
    }
    while(1){
        sleep(3);
    }
    return true;
}
bool client(char *ip,int port){
    int socketfd = 0;
    if(-1 == (socketfd = socket(AF_INET,SOCK_STREAM,0))){
        printf("create socket fail,errno:%d\\n",errno);
        return false;
    }
    sockaddr_in serverAddr;
    memset(&serverAddr,0,sizeof(serverAddr));
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_port = htons(port);
    serverAddr.sin_addr.s_addr = inet_addr(ip);

    if(-1==connect(socketfd,(struct sockaddr*)&serverAddr,sizeof(serverAddr))){
        printf("connect socket fail,errno:%d\\n",errno);
        return false;
    }
    char * sendBuf = "hello world";
    send(socketfd,sendBuf,strlen(sendBuf)+1,0);
    while(1){
        sleep(3);
    }
    return true;
}
int main(int argc, char *argv[])
{
    if(argc!=4){
        printf("usage:CloseWaitTest [0|1] ip port. 0:server,1:client\\n");
        return 1;
    }
    if(atoi(argv[1])==0){
        server(argv[2],atoi(argv[3]));
    }
    if(atoi(argv[1])==1){
        client(argv[2],atoi(argv[3]));
    }
    return 0;
}