Linux C + + server programming, collecting a test example

//Server#include <stdio.h>#include<unistd.h>#include<stdlib.h>#include<string.h>#include<malloc.h>#include<pthread.h>#include<semaphore.h>#include<sys/types.h>#include<sys/socket.h>#include<sys/time.h>#include<sys/ioctl.h>#include<netinet/inch.h>#include<errno.h>#include<string.h>#include"time.h"  #defineServer_port 10000#defineMax_buf_size 16#defineSUCCESS 0#defineFAILURE-1intRecvfromserver (intICLIENTSOCKFD); intMainintargcChar**argv) {    intISERVERSOCKFD; intICLIENTSOCKFD; structsockaddr_in stserveraddr; structsockaddr_in stclientaddr; intIserverlen; intIclientlen; intIopt =1; intIreturn;         pid_t pid; // Timetime_t timer; structTM *Tblock; Timer=Time (NULL); Tblock= LocalTime (&timer); printf ("Servertime is%s", Asctime (Tblock)); printf ("The server.\n"); printf ("I am waiting the client to rsync time \ n"); //Create server SocketISERVERSOCKFD = socket (af_inet, Sock_stream,0); if(ISERVERSOCKFD <0) {printf ("socket create failed in commmanageserverrecvthread.\n"); returnFAILURE; } stserveraddr.sin_family=af_inet; StServerAddr.sin_addr.s_addr=htonl (Inaddr_any); Stserveraddr.sin_port=htons (Server_port); Iserverlen=sizeof(STSERVERADDR); //bind socketIreturn = Bind (ISERVERSOCKFD, (structSOCKADDR *) &stserveraddr, Iserverlen); if(Ireturn <0) {printf ("socket bind failed in commmanageserverrecvthread.\n"); } setsockopt (Iserversockfd,sol_socket,so_reuseaddr,&iopt,sizeof(iopt)); //Listen socketIreturn = Listen (ISERVERSOCKFD,Ten); //Accept request from client     while(1) {ICLIENTSOCKFD= Accept (ISERVERSOCKFD, (structsockaddr*) &stclientaddr, (unsigned *) &Iclientlen); if(ISERVERSOCKFD <0) {printf ("Accept failed.\n"); } PID=Fork (); Switch(PID) { Case-1: {printf ("Fork failed.\n");  Break; }         Case 0: {Write (Iclientsockfd,asctime (tblock), -); printf ("Child Service ok!! \ n");           Close (ICLIENTSOCKFD);  Break; }        default: {close (ICLIENTSOCKFD);  Break;     }}} close (ICLIENTSOCKFD);     Close (ISERVERSOCKFD); returnSUCCESS;} intRecvfromserver (intICLIENTSOCKFD) {    CharAcbuf[max_buf_size]; intIreadnum; memset (Acbuf,0,sizeof(ACBUF)); Ireadnum= Recv (ICLIENTSOCKFD, Acbuf,0xFFFF,0); if(Ireadnum <0) {printf ("Read failed.\n"); returnFAILURE; } printf ("Receive Form client:\n"); printf ("%s\n", ACBUF); returnSUCCESS;} //Client#include <stdio.h>#include<unistd.h>#include<stdlib.h>#include<string.h>#include<malloc.h>#include<pthread.h>#include<semaphore.h>#include<sys/types.h>#include<sys/socket.h>#include<sys/time.h>#include<sys/ioctl.h>#include<netinet/inch.h>#include<errno.h>#include<string.h>#defineServer_port 10000#defineServer_ip "192.168.0.112"#defineWrite_buf_size 1024#defineSUCCESS 0#defineFAILURE-1CharAcbuf[write_buf_size];intMy_read (intFdvoid*buffer,intlength) {                 intBytes_left; intBytes_read; Char*ptr; Bytes_left=length; PTR=buffer;  while(bytes_left>0) {Bytes_read=read (fd,ptr,bytes_left); if(bytes_read<0)                  {                          if(errno==eintr) Bytes_read=0; Else                                       return-1; }                          Else               if(bytes_read==0)                           Break; Bytes_left-=Bytes_read; PTR+=Bytes_read; }               return(length-bytes_left);} intMainintargcChar**argv) {    intISOCKFD; intIreadnum; structsockaddr_in stserveraddr; structsockaddr_in stclientaddr; intIserverlen; intIclientlen; intIreturn; printf ("The client.\n"); //Create server SocketISOCKFD = socket (af_inet, Sock_stream,0); if(ISOCKFD <0) {printf ("socket create failed in commmanageserverrecvthread.\n"); returnFAILURE; } stserveraddr.sin_family=af_inet; Inet_pton (Af_inet, Server_ip,&stserveraddr.sin_addr); Stserveraddr.sin_port=htons (Server_port); Iserverlen=sizeof(STSERVERADDR);  while(1)    {            //printf ("Try to connect to the server ... \ n");Ireturn = Connect (ISOCKFD, (Const structSOCKADDR *) &stserveraddr, Iserverlen); if(Ireturn >=0)        {             Break; } Sleep (3); } printf ("Connect success.\n"); memset (Acbuf,0,sizeof(ACBUF)); My_read (ISOCKFD, Acbuf, -); printf ("%s\n", ACBUF);     Close (ISOCKFD); returnSUCCESS;}

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Linux C + + server programming, collecting a test example