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/* client.c - (c) rohan drape, 2005-2006 */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include "client.h"
#include "memory.h"
#include "network.h"
#include "print.h"
client_register_t *alloc_client_register(i32 n)
{
client_register_t *r = xmalloc(sizeof(client_register_t));
r->n = n;
r->c = xmalloc(n * sizeof(client_t));
i32 i;
for(i = 0; i < r->n; i++) {
r->c[i].in_use = 0;
r->c[i].mask = 0;
}
return r;
}
void print_client_register(FILE *fp, const client_register_t *r, i32 mask)
{
i32 i;
fprintf(fp, "print_client_register:\n");
for(i = 0; i < r->n; i++) {
if(r->c[i].in_use &&(( r->c[i].mask & mask)|| mask == -1)) {
fprintf(fp, "%d in use, mask = %d\n", i, r->c[i].mask);
print_sockaddr_in(fp, r->c[i].address);
}
}
}
void free_client_register(client_register_t *r)
{
free(r->c);
free(r);
}
void edit_client_register(client_register_t *r,
struct sockaddr_in addr,
i32 mask)
{
dprintf("edit_client_register: mask=%d\n", mask);
i32 i;
for(i = 0; i < r->n; i++) {
if(r->c[i].in_use && sockaddr_in_equal(&addr, &(r->c[i].address))) {
if(mask < 0) {
r->c[i].in_use = 0;
r->c[i].mask = 0;
} else {
r->c[i].mask = mask;
}
return;
}
}
if(mask < 0) {
eprintf("edit_client_register: Illegal unregistered client\n");
return;
}
for(i = 0; i < r->n; i++) {
if(! r->c[i].in_use) {
memcpy(&(r->c[i].address), &addr, sizeof(addr));
r->c[i].mask = mask;
r->c[i].in_use = 1;
return;
}
}
eprintf("edit_client_register: Client dropped.\n");
}
void sendto_client_register(int fd,
const client_register_t *r,
const u8 *packet, i32 packet_sz,
i32 mask)
{
if(packet_sz) {
i32 i;
for(i = 0; i < r->n; i++) {
if(r->c[i].in_use &&(r->c[i].mask & mask)) {
sendto_exactly(fd, packet, packet_sz, r->c[i].address);
}
}
}
}
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