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/* Tenes Empanadas Graciela
*
* Copyright (C) 2002 Ricardo Quesada
*
* Author: Ricardo Calixto Quesada <riq@corest.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; only version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
/* Fog of War */
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include "../common/net.h"
#include "server.h"
#include "fow.h"
namespace teg::server
{
TEG_STATUS fow_set_mode(bool b)
{
if(JUEGO_EMPEZADO) {
return TEG_STATUS_ERROR;
}
if(b!=0) {
b=1;
}
g_game.fog_of_war = b;
return TEG_STATUS_SUCCESS;
}
bool fow_can_player_see_country(PSPLAYER pJ, PCOUNTRY pP)
{
if(! pJ || ! pP) {
return false;
}
bool result{false};
countries_map_int(pJ->numjug, [pP, &result](COUNTRY& country) {
if(pP->id == country.id) {
result = true;
return false;
}
if(countries_eslimitrofe(pP->id, country.id)) {
result = true;
return false;
}
return true;
});
return result;
}
TEG_STATUS fow_fill_with_boundaries(int country, char *buffer, int buf_len)
{
int i;
int first_time=1;
if(! g_game.player_fow) {
return TEG_STATUS_ERROR;
}
for(i=0; i < COUNTRIES_CANT; i++) {
if(i != country && g_countries[i].numjug != g_game.player_fow->numjug && countries_eslimitrofe(country, i)) {
char buf[1024];
if(first_time) {
snprintf(buf, sizeof(buf)-1, "%s=%d,%d,%d", TOKEN_COUNTRY, i, g_countries[i].numjug, g_countries[i].ejercitos);
first_time = 0;
} else {
snprintf(buf, sizeof(buf)-1, ";%s=%d,%d,%d", TOKEN_COUNTRY, i, g_countries[i].numjug, g_countries[i].ejercitos);
}
strncat(buffer, buf, buf_len);
}
}
/* dont send, since I didnt modify the buffer */
if(first_time) {
return TEG_STATUS_ERROR;
}
return TEG_STATUS_SUCCESS;
}
int fow_netall_printf(int country, char const *format, ...)
{
va_list args;
char buf[PROT_MAX_LEN];
if(country < 0 || country >= COUNTRIES_CANT) {
return -1;
}
va_start(args, format);
vsnprintf(buf, sizeof(buf) -1, format, args);
va_end(args);
buf[ sizeof(buf) -1 ] = 0;
player_map([buf, country](PSPLAYER pJ) {
if(pJ->fd > 0) {
/* check if he has a boundry country wih 'country' */
countries_map_int(
pJ->numjug, [country, &buf, pJ](COUNTRY& country_to_inspect) -> bool {
CountryId const cid{country_to_inspect.id};
if((cid == country) || countries_eslimitrofe(cid, country))
{
net_print(pJ->fd, buf);
return false;
}
return true;
});
}
});
return 0;
}
/*
* IMPORTANT: it is very important the user can't control the format
* in this function to prevent a format string vulnerability
*
* After format is parsed, 2 "%d" should be present, because they will
* be filled with src & dst
*/
int fow_2_netall_printf(int src, int dst, char const *format, ...)
{
va_list args;
char buf[PROT_MAX_LEN];
if(src<0 || src>=COUNTRIES_CANT || dst<0 || dst>=COUNTRIES_CANT) {
return -1;
}
va_start(args, format);
vsnprintf(buf, sizeof(buf) -1, format, args);
va_end(args);
buf[ sizeof(buf) -1 ] = 0;
player_map([buf, src, dst](PSPLAYER pJ) {
if(pJ->fd > 0) {
/* check if he has a boundry country wih src && dst */
int src_country = -1;
int dst_country = -1;
countries_map_int(pJ->numjug,
[src, dst, &src_country, &dst_country](COUNTRY& country) {
if(country.id == src || countries_eslimitrofe(country.id, src)) {
src_country = src;
}
if(country.id == dst || countries_eslimitrofe(country.id, dst)) {
dst_country = dst;
}
return (dst_country == -1) && (src_country == -1);
});
net_printf(pJ->fd, buf, src_country, dst_country);
}
});
return 0;
}
}
|
