newtree/source/cl_slist.c

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/*
cl_slist.c
serverlist addressbook
Copyright (C) 1999,2000 contributors of the QuakeForge project
Please see the file "AUTHORS" for a list of contributors
Author: Brian Koropoff
Date: 03 May 2000
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; either version 2
of the License, or (at your option) any later version.
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:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "cl_slist.h"
#include "bothdefs.h"
#include "console.h"
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
//Better watch out for buffer overflows
server_entry_t slist[MAX_SERVER_LIST];
void Server_List_Init(void) { // Do this or everything else will sig11
int i;
for(i=0;i < MAX_SERVER_LIST;i++) {
slist[i].server = '\0';
slist[i].description = '\0';
slist[i].ping = 0;
}
}
void Server_List_Shutdown(void) { // I am the liberator of memory.
int i;
QFile *f;
if (!(f = Qopen("./servers.txt","w"))) {
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Con_Printf("Couldn't open servers.txt.\n");
return;
}
Server_List_Save(f);
Qclose(f);
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for(i=0;i < MAX_SERVER_LIST;i++) {
if (slist[i].server)
free(slist[i].server);
if (slist[i].description)
free(slist[i].description);
}
}
int Server_List_Set(int i,char *addr,char *desc) {
int len;
if (i < MAX_SERVER_LIST && i >= 0) {
if (slist[i].server) // (Re)allocate memory first
free(slist[i].server);
if (slist[i].description)
free(slist[i].description);
len = strlen(desc);
slist[i].server = malloc(strlen(addr) + 1);
slist[i].description = malloc(len + 1);
strcpy(slist[i].server,addr);
strcpy(slist[i].description,desc);
return 0; // Yay, we haven't segfaulted yet.
}
return 1; // Out of range
}
int Server_List_Reset_NoFree (int i) { //NEVER USE THIS UNLESS REALLY NEEDED
if (i < MAX_SERVER_LIST && i >= 0) {
slist[i].server = '\0';
slist[i].description = '\0';
slist[i].ping = 0;
return 0;
}
return 1;
}
int Server_List_Reset (int i) {
if (i < MAX_SERVER_LIST && i >= 0) {
if (slist[i].server)
free(slist[i].server);
if (slist[i].description)
free(slist[i].description);
slist[i].server = '\0';
slist[i].description = '\0';
slist[i].ping = 0;
return 0;
}
return 1;
}
void Server_List_Switch(int a,int b) {
server_entry_t temp;
memcpy(&temp,&slist[a],sizeof(temp));
memcpy(&slist[a],&slist[b],sizeof(temp));
memcpy(&slist[b],&temp,sizeof(temp));
}
int Server_List_Len (void) {
int i;
for (i = 0; i < MAX_SERVER_LIST && slist[i].server;i++)
;
return i;
}
int Server_List_Load (QFile *f) { // This could get messy
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int serv = 0;
char line[256]; /* Long lines get truncated. */
int c = ' '; /* int so it can be compared to EOF properly*/
char *start;
int len;
int i;
char *addr;
// Init again to clear the list
// Server_List_Shutdown();
// Server_List_Init();
while (serv < MAX_SERVER_LIST) {
//First, get a line
i = 0;
c = ' ';
while (c != '\n' && c != EOF) {
c = Qgetc(f);
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if (i < 255) {
line[i] = c;
i++;
}
}
line[i - 1] = '\0'; // Now we can parse it
if ((start = gettokstart(line,1,' ')) != NULL) {
len = gettoklen(line,1,' ');
addr = malloc(len + 1);
strncpy(addr,&line[0],len);
addr[len] = '\0';
if ((start = gettokstart(line,2,' '))) {
Server_List_Set(serv,addr,start);
}
else {
Server_List_Set(serv,addr,"Unknown");
}
serv++;
}
if (c == EOF) // We're done
return 0;
}
return 0;
}
int Server_List_Save(QFile *f) {
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int i;
for(i=0;i < MAX_SERVER_LIST;i++) {
if (slist[i].server)
Qprintf(f,"%s %s\n",
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slist[i].server,
slist[i].description);
}
return 0;
}
char *gettokstart (char *str, int req, char delim) {
char *start = str;
int tok = 1;
while (*start == delim) {
start++;
}
if (*start == '\0')
return '\0';
while (tok < req) { //Stop when we get to the requested token
if (*++start == delim) { //Increment pointer and test
while (*start == delim) { //Get to next token
start++;
}
tok++;
}
if (*start == '\0') {
return '\0';
}
}
return start;
}
int gettoklen (char *str, int req, char delim) {
char *start = 0;
int len = 0;
start = gettokstart(str,req,delim);
if (start == '\0') {
return 0;
}
while (*start != delim && *start != '\0') {
start++;
len++;
}
return len;
}