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quakeforge/qw/source/cl_slist.c
Bill Currie dcd9b0040e rewrite the info strings to use hash tables instead of a static string. 
This required changes to the api (info_t instead of char *) but should be
a net gain in speed (not a lot, admittedly: it was pretty fast to begin
with, but this paves the way for some other changes I have in mind).
2001-11-04 07:50:39 +00:00

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/*
cl_slist.c
serverlist addressbook
Copyright (C) 2000 Brian Koropoff <brian.hk@home.com>
Copyright (C) 2001 Chris Ison <ceison@yahoo.com>
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
*/
static const char rcsid[] =
"$Id$";
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <sys/types.h>
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_WINDOWS_H
# include <windows.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#include <ctype.h>
#include <stdlib.h>
#include "QF/cmd.h"
#include "QF/console.h"
#include "QF/cvar.h"
#include "QF/sys.h"
#include "QF/va.h"
#include "QF/vfile.h"
#include "bothdefs.h"
#include "cl_main.h"
#include "cl_slist.h"
#include "client.h"
typedef struct server_entry_s {
char *server;
char *desc;
info_t *status;
int waitstatus;
double pingsent;
double pongback;
struct server_entry_s *next;
struct server_entry_s *prev;
} server_entry_t;
server_entry_t *slist;
server_entry_t *all_slist;
server_entry_t *fav_slist;
int which_slist;
int slist_last_details;
cvar_t *sl_sortby;
cvar_t *sl_filter;
cvar_t *sl_game;
cvar_t *sl_ping;
void
S_Refresh (server_entry_t *slrefresh)
{
netadr_t addy;
char data_ping[] = "\377\377\377\377k";
char data_status[] = "\377\377\377\377status";
NET_StringToAdr (slrefresh->server, &addy);
if (!addy.port)
addy.port = ntohs (27500);
slrefresh->pingsent = Sys_DoubleTime ();
slrefresh->pongback = 0;
NET_SendPacket (6, data_ping, addy);
NET_SendPacket (11, data_status, addy);
slrefresh->waitstatus = 1;
}
server_entry_t *
SL_Add (server_entry_t *start, char *ip, char *desc)
{
server_entry_t *p;
p = start;
if (!start) { // Nothing at beginning of list,
// create it
start = calloc (1, sizeof (server_entry_t));
start->prev = 0;
start->next = 0;
start->server = malloc (strlen (ip) + 1);
start->desc = malloc (strlen (desc ? desc : ip) + 1);
if (!start->server || !start->desc)
Sys_Error ("SL_Add: Memory Allocation Failure\n");
strcpy (start->server, ip);
strcpy (start->desc, desc ? desc : ip);
start->status = NULL;
return (start);
}
for (p = start; p->next; p = p->next) //Get to end of list
if (strcmp(ip,p->server) == 0) //don't add duplicate
return (start);
p->next = calloc (1, sizeof (server_entry_t));
p->next->prev = p;
p->next->server = malloc (strlen (ip) + 1);
p->next->desc = malloc (strlen (desc ? desc : ip) + 1);
if (!p->next->server || !p->next->desc)
Sys_Error ("SL_Add: Memory Allocation Failure\n");
strcpy (p->next->server, ip);
strcpy (p->next->desc, desc ? desc : ip);
p->status = NULL;
return (start);
}
server_entry_t *
SL_Del (server_entry_t *start, server_entry_t *del)
{
server_entry_t *n;
if (del == start) {
free (start->server);
free (start->desc);
n = start->next;
if (n)
n->prev = 0;
free (start);
return (n);
}
free (del->server);
free (del->desc);
if (del->status)
free (del->status);
if (del->prev)
del->prev->next = del->next;
if (del->next)
del->next->prev = del->prev;
free (del);
return (start);
}
server_entry_t *
SL_InsB (server_entry_t *start, server_entry_t *place, char *ip, char *desc)
{
server_entry_t *new, *other;
new = calloc (1, sizeof (server_entry_t));
new->server = malloc (strlen (ip) + 1);
new->desc = malloc (strlen (desc) + 1);
if (!new->server || !new->desc)
Sys_Error ("SL_InsB: Memory Allocation Failure\n");
strcpy (new->server, ip);
strcpy (new->desc, desc);
other = place->prev;
if (other)
other->next = new;
place->prev = new;
new->next = place;
new->prev = other;
if (!other)
return new;
return start;
}
void
SL_Swap (server_entry_t *swap1, server_entry_t *swap2)
{
int i;
server_entry_t *next1, *next2, *prev1, *prev2;
next1 = swap1->next;
next2 = swap2->next;
prev1 = swap1->prev;
prev2 = swap2->prev;
for (i = 0; i < sizeof(server_entry_t); i++)
{
((char *)swap1)[i] ^= ((char *)swap2)[i];
((char *)swap2)[i] ^= ((char *)swap1)[i];
((char *)swap1)[i] ^= ((char *)swap2)[i];
}
swap1->next = next1;
swap2->next = next2;
swap1->prev = prev1;
swap2->prev = prev2;
}
int
SL_CheckFilter (server_entry_t *sl_filteritem)
{
if (!sl_filter->int_val)
return(1);
if (!sl_filteritem->status)
return(0);
if (strlen(sl_game->string))
{
if (strcasecmp(Info_ValueForKey (sl_filteritem->status, "*gamedir"),
sl_game->string) != 0)
return(0);
}
if (sl_ping->int_val)
{
if (!sl_filteritem->pongback)
return(0);
if (((int)(sl_filteritem->pongback * 1000)) >= sl_ping->int_val)
return(0);
}
return(1);
}
server_entry_t *
SL_Get_By_Num (server_entry_t *start, int n)
{
int i;
for (i = 0; i <= n; i++)
{
if(!start)
break;
if (!SL_CheckFilter (start))
i--;
if (i != n)
start = start->next;
}
if (!start)
return (0);
return (start);
}
int
SL_Len (server_entry_t *start)
{
int i;
for (i = 0; start; i++)
start = start->next;
return i;
}
void
SL_Del_All (server_entry_t *start)
{
server_entry_t *n;
while (start) {
n = start->next;
free (start->server);
free (start->desc);
if (start->status)
free (start->status);
free (start);
start = n;
}
}
void
SL_SaveF (VFile *f, server_entry_t *start)
{
do {
Qprintf (f, "%s %s\n", start->server, start->desc);
start = start->next;
} while (start);
}
void
SL_Shutdown (void)
{
char e_path[MAX_OSPATH];
VFile *f;
if (fav_slist) {
Qexpand_squiggle (fs_userpath->string, e_path);
if ((f = Qopen (va ("%s/servers.txt", e_path), "w"))) {
SL_SaveF (f, fav_slist);
Qclose (f);
}
SL_Del_All (fav_slist);
}
if (all_slist)
SL_Del_All (all_slist);
}
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;
}
void timepassed (double time1, double *time2)
{
*time2 -= time1;
}
void
SL_SortEntry (server_entry_t *start)
{
int i = 0;
server_entry_t *q;
if (!start || !sl_sortby)
return;
for (q = start->next; q; q = q->next)
{
if (sl_sortby->int_val)
{
if ((q->pongback) && (start->pongback) && (start->pongback >
q->pongback))
{
SL_Swap(start,q);
q = start;
}
} else {
i = 0;
while ((start->desc[i] != '\0') && (q->desc[i] != '\0') &&
(toupper(start->desc[i]) == toupper(q->desc[i])))
i++;
if (toupper(start->desc[i]) > toupper(q->desc[i]))
{
SL_Swap(start,q);
q = start;
}
}
}
}
void
SL_Sort (cvar_t *var)
{
server_entry_t *p;
if (!slist)
return;
for (p = slist; p->next; p = p->next)
SL_SortEntry (p);
}
void
SL_Con_List (server_entry_t *sldata)
{
int serv;
server_entry_t *cp;
SL_Sort(sl_sortby);
for(serv = 0; serv < SL_Len (sldata); serv++)
{
cp = SL_Get_By_Num (sldata, serv);
if (!cp)
break;
Con_Printf("%i) %s\n",(serv + 1),cp->desc);
}
}
void
SL_Connect (server_entry_t *sldata, int slitemno)
{
CL_Disconnect ();
strncpy (cls.servername, SL_Get_By_Num (sldata, (slitemno - 1))->server,
sizeof (cls.servername) - 0);
CL_BeginServerConnect ();
}
void
SL_Update (server_entry_t *sldata)
{
// FIXME - Need to change this so the info is not sent in 1 burst
// as it appears to be causing the occasional problem
// with some servers
server_entry_t *cp;
cp = sldata;
while (cp)
{
S_Refresh (cp);
cp = cp->next;
}
}
void
SL_Con_Details (server_entry_t *sldata, int slitemno)
{
int i, playercount;
server_entry_t *cp;
playercount = 0;
slist_last_details = slitemno;
cp = SL_Get_By_Num (sldata, (slitemno - 1));
if (!cp)
return;
Con_Printf("Server: %s\n", cp->server);
Con_Printf("Ping: ");
if (cp->pongback)
Con_Printf("%i\n", (int)(cp->pongback * 1000));
else
Con_Printf("N/A\n");
if (cp->status)
{
char *s;
Con_Printf("Name: %s\n", cp->desc);
Con_Printf("Game: %s\n", Info_ValueForKey (cp->status, "*gamedir"));
Con_Printf("Map: %s\n", Info_ValueForKey (cp->status, "map"));
s = Info_MakeString (cp->status, 0);
for (i = 0; i < strlen (s); i++)
if (s[i] == '\n')
playercount++;
Con_Printf("Players: %i/%s\n", playercount,
Info_ValueForKey(cp->status, "maxclients"));
// For Debug of Server Info
// Con_Printf("%s\n",cp->status);
} else
Con_Printf("No Details Available\n");
}
void
SL_MasterUpdate(void)
{
char data[] = "c\n\0";
netadr_t addy;
SL_Del_All(slist);
slist = NULL;
NET_StringToAdr ("194.251.249.32:27000", &addy);
NET_SendPacket (3, data, addy);
NET_StringToAdr ("qwmaster.barrysworld.com:27000", &addy);
NET_SendPacket (3, data, addy);
NET_StringToAdr ("192.246.40.37:27000", &addy);
NET_SendPacket (3, data, addy);
NET_StringToAdr ("192.246.40.37:27002", &addy);
NET_SendPacket (3, data, addy);
NET_StringToAdr ("192.246.40.37:27003", &addy);
NET_SendPacket (3, data, addy);
NET_StringToAdr ("192.246.40.37:27004", &addy);
NET_SendPacket (3, data, addy);
NET_StringToAdr ("192.246.40.37:27006", &addy);
NET_SendPacket (3, data, addy);
NET_StringToAdr ("203.9.148.7:27000", &addy);
NET_SendPacket (3, data, addy);
}
int
SL_Switch (void)
{
if (!which_slist)
{
fav_slist = slist;
slist = all_slist;
which_slist = 1;
} else {
all_slist = slist;
slist = fav_slist;
which_slist = 0;
}
SL_Sort (sl_sortby);
return (which_slist);
}
void
SL_Command (void)
{
int sltemp = 0;
if (Cmd_Argc () == 1)
SL_Con_List(slist);
else if (strcasecmp(Cmd_Argv(1),"switch") == 0)
{
if (SL_Switch ())
Con_Printf("Switched to Server List from Masters\n");
else
Con_Printf("Switched to Favorate Server List\n");
}
else if (strcasecmp(Cmd_Argv(1),"refresh") == 0)
{
if (Cmd_Argc () == 2)
SL_Update(slist);
else
Con_Printf("Syntax: slist refresh\n");
}
else if (strcasecmp(Cmd_Argv(1),"update") == 0)
{
if (Cmd_Argc () == 2)
{
if(!which_slist)
Con_Printf("ERROR: This of for updating the servers from a "
"list of masters\n");
else
SL_MasterUpdate();
}
else
Con_Printf("Syntax: slist update\n");
}
else if (strcasecmp(Cmd_Argv(1),"connect") == 0)
{
if (Cmd_Argc () == 3)
{
sltemp = atoi(Cmd_Argv(2));
if(sltemp && (sltemp <= SL_Len (slist)))
SL_Connect(slist,sltemp);
else
Con_Printf("Error: Invalid Server Number -> %s\n",Cmd_Argv(2));
}
else if ((Cmd_Argc () == 2) && slist_last_details)
SL_Connect(slist,slist_last_details);
else
Con_Printf("Syntax: slist connect #\n");
}
else
{
sltemp = atoi(Cmd_Argv(1));
if((Cmd_Argc () == 2) && sltemp && (sltemp <= SL_Len (slist)))
SL_Con_Details(slist,sltemp);
}
}
void
MSL_ParseServerList(const char *msl_data)
{
int msl_ptr;
for (msl_ptr = 0; msl_ptr < strlen(msl_data); msl_ptr = msl_ptr + 6)
{
slist = SL_Add(slist, va("%i.%i.%i.%i:%i",
(byte)msl_data[msl_ptr],
(byte)msl_data[msl_ptr+1],
(byte)msl_data[msl_ptr+2],
(byte)msl_data[msl_ptr+3],
((byte)msl_data[msl_ptr+4]<<8)|(byte)msl_data[msl_ptr+5]), NULL);
}
}
server_entry_t *
SL_LoadF (VFile *f, server_entry_t *start)
{
//This could get messy
char line[256]; /* Long lines get truncated. */
char *addr, *st;
int len, i;
int c = ' '; /* int so it can be compared to EOF properly */
while (1) {
// First, get a line
i = 0;
c = ' ';
while (c != '\n' && c != EOF) {
c = Qgetc (f);
if (i < 255) {
line[i] = c;
i++;
}
}
line[i - 1] = '\0'; // Now we can parse it
if ((st = gettokstart (line, 1, ' ')) != NULL) {
len = gettoklen (line, 1, ' ');
addr = malloc (len + 1);
if (!addr)
Sys_Error ("SL_LoadF: Memory Allocation Failure\n");
strncpy (addr, &line[0], len);
addr[len] = '\0';
if ((st = gettokstart (line, 2, ' '))) {
start = SL_Add (start, addr, st);
} else {
start = SL_Add (start, addr, "Unknown");
}
free (addr);
}
if (c == EOF) // We're done
return start;
}
}
void SL_Init (void)
{
char e_path[MAX_OSPATH];
VFile *servlist;
Qexpand_squiggle (fs_userpath->string, e_path);
if ((servlist = Qopen (va ("%s/servers.txt", e_path), "r"))) {
slist = SL_LoadF (servlist, slist);
Qclose (servlist);
} else {
Qexpand_squiggle (fs_sharepath->string, e_path);
if ((servlist = Qopen (va ("%s/servers.txt", e_path), "r"))) {
slist = SL_LoadF (servlist, slist);
Qclose (servlist);
}
}
fav_slist = slist;
all_slist = NULL;
which_slist = 0;
Cmd_AddCommand("slist",SL_Command,"console commands to access server "
"list\n");
sl_sortby = Cvar_Get ("sl_sortby", "0", CVAR_ARCHIVE, SL_Sort, "0 = sort "
"by name, 1 = sort by ping");
sl_filter = Cvar_Get ("sl_filter", "0", CVAR_NONE, NULL, "enable server "
"filter");
sl_game = Cvar_Get ("sl_game", "", CVAR_ARCHIVE, NULL, "sets the "
"serverlist game filter");
sl_ping = Cvar_Get ("sl_ping", "", CVAR_ARCHIVE, NULL, "sets the "
"serverlist ping filter");
}
int
SL_CheckStatus (const char *cs_from, const char *cs_data)
{
const char *tmp_desc;
server_entry_t *temp;
for (temp = slist; temp; temp = temp->next)
if (temp->waitstatus)
{
if (strcmp (cs_from, temp->server) == 0)
{
//int i;
if (temp->status)
Info_Destroy (temp->status);
temp->status = Info_ParseString (cs_data, strlen (cs_data));
temp->waitstatus = 0;
tmp_desc = Info_ValueForKey (temp->status, "hostname");
/*FIXME update for new info api
if (tmp_desc[0] != '\0') {
temp->desc = realloc(temp->desc, strlen(tmp_desc) + 1);
strcpy(temp->desc, tmp_desc);
} else {
temp->desc = realloc(temp->desc, strlen(temp->status) + 1);
strcpy(temp->desc, temp->server);
}
for (i = 0; i < strlen(temp->status); i++)
if (temp->status[i] == '\n') {
temp->status[i] = '\\';
break;
}
*/
return (1);
}
}
return (0);
}
void
SL_CheckPing (const char *cp_from)
{
server_entry_t *temp;
for (temp = slist; temp; temp = temp->next)
if (temp->pingsent && !temp->pongback) {
if (strcmp (cp_from, temp->server)) {
temp->pongback = Sys_DoubleTime ();
timepassed(temp->pingsent, &temp->pongback);
}
}
}
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