socket_client

标签：nic   not   set   and   ddr   def   cli   argv   size   

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <sys/types.h>

#include <sys/socket.h>

#include <sys/un.h>

#include <netinet/in.h>

#include <unistd.h>

//#define UNIX_DOMAIN "/tmp/UNIX.domain"

#define DATELEN 1024

int main(int argc, char *argv[])

{

int GuiConnect_fd = -1;

int iRet = -1;

int iRecvLen = 0;

int iSendLen = 0;

char GuiSendBuf[DATELEN] = {0};

char GuiRecvBuf[DATELEN] = {0};

//static struct sockaddr_un ServAddr;

struct sockaddr_in ServAddr;

//creat unix socket

//GuiConnect_fd = socket(PF_UNIX, SOCK_STREAM, 0);

GuiConnect_fd = socket(AF_INET, SOCK_STREAM, 0);

printf("== GuiConnect_fd = %d\n", GuiConnect_fd);

if (GuiConnect_fd < 0)

{

perror("cannot create communication socket");

return 1;

}

//ServAddr.sun_family = AF_UNIX;

//strncpy(ServAddr.sun_path, UNIX_DOMAIN, sizeof(ServAddr.sun_path) - 1);

memset(&ServAddr, 0, sizeof(ServAddr));

ServAddr.sin_family = AF_INET;

ServAddr.sin_port = htons(5050);

ServAddr.sin_addr.s_addr = inet_addr("127.0.0.1");

//connect server

iRet = connect(GuiConnect_fd, (struct sockaddr*)&ServAddr, sizeof(ServAddr));

if(-1 == iRet)

{

perror("cannot connect to the server");

close(GuiConnect_fd);

return 1;

}

//receive and send message

memset(GuiRecvBuf, 0, DATELEN);

printf("GUI Receie Msg from TDC\n");

//iRecvLen = read(GuiConnect_fd, GuiRecvBuf, sizeof(GuiRecvBuf));

iRecvLen = recv(GuiConnect_fd, GuiRecvBuf, DATELEN, 0);

printf("receive message from server (%d) :%s\n", iRecvLen, GuiRecvBuf);

printf("GUI Send msg to TDC server:\n");

memset(GuiSendBuf, 0, DATELEN);

strcpy(GuiSendBuf, "receive message from GUI client\n");

GuiSendBuf[strlen(GuiSendBuf)] = ‘\0‘;

//iSendLen = write(GuiConnect_fd, GuiSendBuf, sizeof(GuiSendBuf));

iSendLen = send(GuiConnect_fd, GuiSendBuf, strlen(GuiSendBuf), 0);

printf("wrint Date Len to server (%d) : %s\n", iSendLen, GuiSendBuf);

close(GuiConnect_fd);

return 0;

}

socket_client

标签：nic   not   set   and   ddr   def   cli   argv   size   

原文地址：https://www.cnblogs.com/yinguojin/p/14811403.html