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Dobry den,

cely den se marne snazim rozbehnout jeden program, aby pracoval jako klient/server (lokalni socket). Program obslouzi jen prvniho klienta a druhy se k nemu vubec nepripoji.

Nerad bych se priklanel k reseni pomoci podprocesu (fork(),...) a vlakna nepripadaji vubec v uvahu. Vim ze to musi jit nejak pomoci fce select(),ale proste se mi to nedari. Pripadne mi to jako bych pri spojeni (accept()) zapomel nebo si prepsal puvodni socket vytvoreny serverem...

Pokud by nekdo vedel kde delam chybu velmi by mi to pomohlo. Uvadim zde kratky prikladna kterem sve kroky testuji.

*********** server.c *************
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>


#define SOCK_PATH "socket"

struct server_sock {
   int sock; /*socket serveru*/
   int sock_c[256]; /*klientske sockety*/
   int len; /*velikost vyhrazene pameti*/
   int t;
   int n; /*pocet klientskych socketu*/
   struct sockaddr_un local, remote;
};

struct server_sock create_sock(void);

struct server_sock create_sock(void)
{
struct server_sock server;
char str[100];

   if ((server.sock = socket(PF_UNIX, SOCK_STREAM, 0)) == -1)
   {
       fprintf(stdout, "socket : %s\n",strerror(errno));
       exit(1);
   }

   server.local.sun_family = PF_UNIX;

   strcpy(server.local.sun_path, SOCK_PATH);
   unlink(server.local.sun_path);

   server.len = strlen(server.local.sun_path) + sizeof(server.local.sun_family);

   if (bind(server.sock, (struct sockaddr *)&server.local, server.len) == -1)
   {
       fprintf(stdout, "bind : %s\n",strerror(errno));
       exit(1);
   }

   if (listen(server.sock, 10) == -1)
   {
       fprintf(stdout, "listen on server socket : %s\n",strerror(errno));
       exit(1);
   }

   return(server);
}

int main(void)
{
struct server_sock server;
char str[100];
int i = 0, n;
int sockn = 0;
int len;
int sock;
fd_set sock_set;

   /*vytvoreni socketu*/
   server = create_sock();

   sock = server.sock;

   //tv.tv_sec = 3;
   //tv.tv_usec = 0;

   printf("Cekam na spojeni...\n");

   len = sizeof(server.remote);

   FD_ZERO(&sock_set);
   FD_SET(sock, &sock_set);

   while (1)
   {
       //FD_ZERO(&sock_set);
       //FD_SET(sock, &sock_set);

       for (i = 0; i < sockn; i++)
           FD_SET(server.sock_c[i], &sock_set);
             if (select(sock + 1, &sock_set, NULL, NULL, NULL) < 0)
       {
           fprintf(stdout, "select : %s\n",strerror(errno));
           close(server.sock);
           unlink(SOCK_PATH);
           exit(1);
       }

        if (FD_ISSET(server.sock, &sock_set))
       {
           len = sizeof(server.remote);

           if ((server.sock_c[sockn] = accept(server.sock, (struct sockaddr *)&server.remote, &len)) == -1)
           {
               fprintf(stdout, "accept : %s\n",strerror(errno));
               close(server.sock);
               unlink(SOCK_PATH);
               exit(1);
           }

           FD_SET(server.sock_c[sockn], &sock_set);
           server.n = sockn++;

           fprintf(stdout, "Connected.\n");
       }

       for (i = 0; i < sockn; i++)
       {
           if (FD_ISSET(server.sock_c[i], &sock_set))
           {
               n = recv(server.sock_c[i], str, 100, 0);
               if (n <= 0)
               {
                   fprintf(stdout, "recv : %s\n",strerror(errno));
                   FD_CLR(server.sock_c[i], &sock_set);
                   close(server.sock_c[i]);
                   exit (1);
               }

               printf("DDD: send\n");
               if (send(server.sock_c[i], str, n, 0) <= 0)
               {
                   fprintf(stdout, "send : %s\n",strerror(errno));
                   close(server.sock_c[i]);
                   exit (1);
               }
           }
       }
       printf("go to back  - select\n");
   }

   close(server.sock);
   unlink(SOCK_PATH);

   return (0);
}

*************konec**************** 

Omlouvam se za delku prikladu, ale pro nazornost jej posilam cely.
Dekuji za kazdou radu.