writting a simple UDP server, a little help please?

[a_n_h]

Hi there,

how are u all doing?

I am writing a simple UDP server, and I have a quick question, I want my server to serve only one client at a time, but I really have no idea where to start, any tips on how to do that, is there a specific function i should use, like for example, connect?

I googled it but to no avail!!

any help is appreciated!!

thank u in advance

[RobinVossen]

What language are you writing this in? Ill deliver a sample
Also, wrong section.. my advice reaches that you will use the right section on the forums next time for a quicker reply and answer.

[a_n_h]

I am writing my program in C, and sorry if its in the wrong forum, i was confused on where to ask my question, but thought since its mostly a programming question i should put it here

[RobinVossen]

woops my bad its the right section.. I thought it said ubuntu.. (sorry :P I was mistaken with a diffrent one)

Edit:
Leeched:

/* Sample UDP server */

#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>

int main(int argc, char**argv)
{
   int sockfd,n;
   struct sockaddr_in servaddr,cliaddr;
   socklen_t len;
   char mesg[1000];

   sockfd=socket(AF_INET,SOCK_DGRAM,0);

   bzero(&servaddr,sizeof(servaddr));
   servaddr.sin_family = AF_INET;
   servaddr.sin_addr.s_addr=htonl(INADDR_ANY);
   servaddr.sin_port=htons(32000);
   bind(sockfd,(struct sockaddr *)&servaddr,sizeof(servaddr));

   for (;;)
   {
      len = sizeof(cliaddr);
      n = recvfrom(sockfd,mesg,1000,0,(struct sockaddr *)&cliaddr,&len);
      sendto(sockfd,mesg,n,0,(struct sockaddr *)&cliaddr,sizeof(cliaddr));
      printf("-------------------------------------------------------\n");
      mesg[n] = 0;
      printf("Received the following:\n");
      printf("%s",mesg);
      printf("-------------------------------------------------------\n");
   }
}

Does that help?

[a_n_h]

unfortionatly no, as I stated before I already googled it, and came by a couple of examples on how to write a UDP server, my question is, how can we make a server handle only one client at a time, is there a function that does that?
or does

bind(sockfd,(struct sockaddr *)&servaddr,sizeof(servaddr));

solve this problem?

This is my first time I am writing a server so if I ask a stupid question go easy on me

[coopstah13]

unless you specifically write your code to use threads, it will only serve one at a time

[a_n_h]

unless you specifically write your code to use threads, it will only serve one at a time

are u sure? can't a UDP socket accept messages from different clients??

I think I read that somewhere (or heard it from someone) but i am not sure

[coopstah13]

blocking socket can only read from one source at a time

[a_n_h]

thanks to all who replied, i think i got it now =)

just one last question, since i dont want to wast another post on it, what is best way in your opinion to deal with packet reordering?

thank u in advance