Count established connections

I am running an IRC server currently running on port 6667, using the current hybrid and a UDP server that receives requests from a client and is supposed to pass back to the user the number of connections.
Is there a way I can count the number connected to the irc server so I can pass it back to the users?
I was able to do a perl script doing a netstat and passing that back to the client, but I would rather do this in C so that I might be able to add this UDP server in the IRC server code afterwards.
My current UDP server code is as follows:

Code:

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#include <stdio.h>
#include <errno.h>
#include <sys/socket.h>
#include <resolv.h>

#define DEFAULT_PORT        1235

int main(int count, char *strings[])
{        int sd;
        int i;
        int fport;
        int uport;
        int lport;
        int sbytes = 20;
        int port=DEFAULT_PORT;
        struct sockaddr_in addr;
        char buffer[1024];
        char sbuffer[1024];
        //char sport[6];
       
        char o1[5], o2[5], o3[5], o4[5];  //set string rep of each octet
        int io1, io2, io3, io4;                //set int value for each octet

        if ( count != 2 )
                printf("usage: %s <port>\n...Using default port (%d).\n", strings[0], port);
        else
                port = atoi(strings[1]);
        sd = socket(PF_INET, SOCK_DGRAM, 0);
        bzero(&addr, sizeof(addr));
        addr.sin_family = AF_INET;
        addr.sin_port = htons(port);
        addr.sin_addr.s_addr = INADDR_ANY;
        if ( bind(sd, (struct sockaddr*)&addr, sizeof(addr)) != 0 )
                perror("bind");
        while (1)
        {        int bytes, addr_len=sizeof(addr);

                for (i = 0; i < 12; i++)
                {
                        sbuffer[i] = 0;
                }

                bytes = recvfrom(sd, buffer, sizeof(buffer), 0, (struct sockaddr*)&addr, &addr_len);

/*
                printf("msg from %s:%d (%d bytes)\n", inet_ntoa(addr.sin_addr),
                                                ntohs(addr.sin_port), bytes);
*/

                sscanf(inet_ntoa(addr.sin_addr), "%4[^.].%4[^.].%4[^.].%4[^.]", o1, o2, o3, o4);

                //set from port to port received from
                fport = ntohs(addr.sin_port);

                //set upper byte of port       
                uport = fport / 256;
                //printf("upper uport = %d\n",uport);

                //set lower byte of port
                lport = fport - (uport * 256);
                //printf("lower lport = %d\n",lport);
       
                //printf("sport = %s and fport = %d\n",sport, fport);

                //int of each octet
                io1 = atoi(o1);
                io2 = atoi(o2);
                io3 = atoi(o3);
                io4 = atoi(o4);

                //printf("From IP:%s %s %s %s: %d\n", o1, o2, o3, o4, fport);

                //this is what we received in hex
/*                printf("Received:\n");
                printf("%2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x\n",
                        buffer[0], buffer[1], buffer[2], buffer[3], buffer[4], buffer[5],
                        buffer[6], buffer[7], buffer[8], buffer[9], buffer[10], buffer[11]);
*/
                //set send buffer to stuff I want
                //sbuffer[0] = buffer[4];
                sbuffer[1] = buffer[5];
                sbuffer[2] = buffer[6];
                sbuffer[3] = buffer[7];
                sbuffer[4] = buffer[8];
                sbuffer[5] = buffer[9];
                sbuffer[6] = buffer[10];
                sbuffer[7] = buffer[11];
                //sbuffer[0] = buffer[4];

                /*for (i = 4; i < 12; i++)
                {
                        sbuffer[i-4]=buffer[i];
                }
                */
                //sprintf(sport, "%x", fport);

                //printf("From port in HEX: %s\n",sport);

                //sprintf(sport, "%x", port);
                //printf("To port in HEX: %s LEN = %d\n", sport, strlen(sport));

                //set this to from ip               
                sbuffer[8] = io1;
                sbuffer[9] = io2;
                sbuffer[10] = io3;
                sbuffer[11] = io4;

                //set this to port
                sbuffer[12] = uport;
                sbuffer[13] = lport;
               
                //not sure why i couldnt set it earlier
                sbuffer[0] = buffer[4];
               
                //printf("%2x %2x\n",sbuffer[0], buffer[4]);

                //pad the junk
                sbuffer[14] = 0;
                sbuffer[15] = 66;

                //#  of users here all to 255 gives ? to users
                sbuffer[16] = 255;
                sbuffer[17] = 255;
                sbuffer[18] = 255;
                //i dont expect more than 64 put here at 19 otherwise use 18 and 19
                sbuffer[19] = 255;

/*                printf("Sending:\n");
                printf("%2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x\n",
                        sbuffer[0], sbuffer[1], sbuffer[2], sbuffer[3], sbuffer[4], sbuffer[5],
                        sbuffer[6], sbuffer[7], sbuffer[8], sbuffer[9], sbuffer[10], sbuffer[11],
                        sbuffer[12], sbuffer[13], sbuffer[14], sbuffer[15], sbuffer[16],
                        sbuffer[17], sbuffer[18], sbuffer[19]);
*/
                sendto(sd, sbuffer, sbytes, 0, (struct sockaddr*)&addr, sizeof(addr));
        }
        close(sd);
}

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CurrentConnections++ when a connection is made
CurrentConnections-- when a connection is dropped