testrecv_tcp.c

C语言编写的socket服务端测试程序

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <netdb.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <time.h>
#include <signal.h>
#include <string.h>

int main(argc,argv)
int argc;
char **argv;
{
	int iRecvSock,iSock;
	struct sockaddr_in strRcv;
	char recvHead[10];
	char recvData[10240],sendData[10240];
	int iAddrLength;
	if(argc!=2) {
		fprintf(stderr,"Usage : testrecv <port>\n");
		exit(1);
	}
	iAddrLength=sizeof(struct sockaddr_in);
	memset(&strRcv,'\0',sizeof(struct sockaddr_in));
	strRcv.sin_family=PF_INET;
	strRcv.sin_port=htons(atoi(argv[1]));
	strRcv.sin_addr.s_addr=INADDR_ANY;
	memset(recvData,'\0',sizeof(recvData));
	memset(sendData,'\0',sizeof(sendData));
	if ((iRecvSock = socket (AF_INET, SOCK_STREAM, 0))==-1) {			
			printf("无法创建Socket \n");
			perror("socket");
			exit(0);
	}
	if (bind(iRecvSock, (struct sockaddr *)&strRcv, sizeof(struct sockaddr_in)) == -1) { 
		printf("无法绑定地址\n"); 
		perror("bind");
		close(iRecvSock);
		exit (0); 
	} 
	if (listen(iRecvSock, 10) == -1) { 
		printf("无法监听Socket \n"); 
		perror("listen");
		close(iRecvSock);
		exit (0); 
	} else{
		printf("Listening...\n");
	}
	printf("first  -------------   first\n");
	while(1){
		printf("22222222\n");
		if((iSock=accept(iRecvSock,(struct sockaddr *)&strRcv,&iAddrLength))==-1){
			printf("无法接受连接 \n"); 
			perror("accept");
			close(iRecvSock);
			exit (0);
		}		
		printf("已接受连接:  %s\n", inet_ntoa(strRcv.sin_addr));
		if(recv(iSock,recvHead,sizeof(recvHead),0)==-1){
			printf("接收消息失败\n"); 
			perror("recv");
			close(iSock);
			exit (0);
		}else{
			printf("333333333344\n");
			printf("recvHead=%s\n",recvHead);
		}

		memset(recvData,'\0',sizeof(recvData));
		if(recv(iSock,recvData,sizeof(recvData),0)==-1){
			printf("接收消息失败\n"); 
			perror("recv");
			close(iSock);
			exit (0);
		}else{
			printf("333333333344\n");
			printf("recvData=%s\n",recvData);
		}
		
	}
	close(iSock);
	close(iRecvSock);
	exit(1);
}