linux socket編程 用線程的伺服器例子

#include <stdarg.h>
#include <stdio.h>
#include <signal.h>
#include <netdb.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <errno.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <pthread.h>

struct sockargs {
 int s;
 struct sockaddr_in *remote;
 };

void* process_server(void *args) {
     int len,s;
     time_t ti;
     char buff[128];
     struct sockaddr_in *remote;
     struct sockargs connfd=*((struct sockargs *)args);
     s=connfd.s;
     remote=connfd.remote;
     pthread_detach(pthread_self());
     printf("connection from: %s:%d/n",inet_ntoa(remote->sin_addr),ntohs(remote->sin_port));
      ti=time(NULL);
      //snprintf(buff,sizeof(buff),"%s/r/n",ctime(&ti));
 while((len=recv(s,buff,sizeof(buff),0))>0) {
  buff[len]='/0';
       send(s, buff,strlen(buff), 0);
  bzero(buff,sizeof(buff));
 }

 free(remote);
 free(args);
 close(s);
 return(NULL);
}

int main(int argc, char **argv) {
    struct sockaddr_in *remote;
    char *hname, *sname;
    int s, c, len;
    pthread_t tid;
    struct sockargs *connfd;
    if(argc < 2)
     error(1,0,"parameters less than 2");
    else if(argc == 2) {
     hname = NULL;
 sname = argv[1];
    }
    else if(argc == 3) {
     hname = argv[1];
 sname = argv[2];
    }
    s = server(hname, sname,"tcp");
    len = sizeof(struct sockaddr);
    while(1) {
        remote=malloc(sizeof(struct sockaddr_in));
     if((c=accept(s,(struct sockaddr *)remote,&len))<=0)
         error(1,errno,"accept error!");
 connfd=(struct sockargs *)malloc(sizeof(struct sockargs));
 connfd->s=c;
 connfd->remote=remote;
 pthread_create(&tid,NULL,&process_server,(void *)connfd);
 
    }
    close(s);
    exit(0);
}