[C] Serveur multi-clients - Version imprimable

Code :
#include <sys/types.h>

#include <netinet/in.h>

#include <netdb.h>

#include <sys/socket.h>

#include <sys/wait.h>

#include <unistd.h>

#include <stdio.h>

#include <stdlib.h>

#include <errno.h>

#include <string.h>

typedef struct

{

   int sock;

   char name[64];

}Client;

int main(){

    

    

    int reals;

    int sin_size;

    int sockfd;

    struct sockaddr_in their_addr[5];

    int i=0;

    int ret=0;

    char buf[64];

    char *pass[5];

    char *pseudo[5];

    char msg[64];

    int k=0;

    int m=0;

    int max=0;

    Client clients[5];

    fd_set fd;

    fd_set cfd;

    struct sockaddr *addr;

    char *log="tim";

    struct sockaddr_in my_addr;

    pid_t pid;

    if((sockfd=socket(AF_INET,SOCK_STREAM,0))<0){

        perror("socket");

        exit(1);

    }

    my_addr.sin_family=AF_INET;

    my_addr.sin_port=htons(2300);

    my_addr.sin_addr.s_addr=INADDR_ANY;

    

    if(bind(sockfd,(struct sockaddr *)&my_addr,sizeof(struct sockaddr_in))<0){

        perror("bind");

        exit(1);

    }

    listen(sockfd,5);

    printf("attente d'un client");

    sin_size = sizeof(struct sockaddr_in);

    printf("%d\n",i);

    while(1){

        int l=0;

        int n=0;

        

        FD_ZERO(&fd);

        FD_SET(sockfd,&fd);

        for(l=0;l<=i;l++){

            FD_SET(clients[l].sock,&fd);

        }

        printf("nous y sommes3\n");

        for(n=0;n<=i;n++){

            if(max<clients[n].sock){

                max=clients[n].sock;

            }

        }

        if(max<sockfd)

            max=sockfd;

        printf("%d",max);

        if((ret=select(max,&fd,NULL,NULL,NULL))==-1){

            perror("select");

            exit(1);

        }

        printf("nous y sommes2\n");

        if(FD_ISSET(sockfd,&fd)){

            printf("here we are\n");

            sin_size=sizeof(struct sockaddr_in);

            clients[i].sock=accept(sockfd,(struct sockaddr *)&their_addr[i],&sin_size);

            send(clients[i].sock,"login :",64,0);

            reals=recv(clients[i].sock,buf,64,0);

            buf[reals]='\0';

            strncpy(clients[i].name, buf, 64 - 1);            

            i++;

            

        }

        else if(ret==0){

            printf("problem?");

        }

        else{

            printf("here we are9");

            for(k=0;k<=i;k++){

                if(FD_ISSET(clients[k].sock,&fd)){

                    int j=0;

                    printf("here we are5\n");

                    reals=recv(clients[k].sock,buf,64,0);

                    printf("here we are6\n");

                    if(reals==0){

                        close(clients[k].sock);

                        i--;

                    }    

                    else{    

                        buf[reals]='\0';

                        printf("%s",buf);

                        printf("here we are7\n");

                        strncpy(msg,clients[k].name,64-1);

                        strncat(msg,buf,64-strlen(msg)-1);

                        printf("here we are8\n");

                        for(j=0;j<=i;j++){

                            send(clients[j].sock,msg,64,0);

                        }

                    }

                }

            }

        }



    }        

        





    

}