SVN version from http://sourceforge.net/projects/qstat/
./configure
make && make install
qstat -json -a2s XX.XX.XX.XX:27015
[
{
"protocol": "a2s",
"address": "XX.XX.XX.XX:27015",
"status": "online",
"hostname": "XX.XX.XX.XX:27015",
"name": "Dummy Server",
"gametype": "cstrike",
"map": "de_dust",
"numplayers": 24,
"maxplayers": 62,
"numspectators": 0,
"maxspectators": 0,
"ping": 31,
"retries": 0
}
]qstat --json-version
{
"version": "2.12"
}qstat --json-protocols
{
"a2s": "Half-Life 2 new",
"ams": "America's Army v2.x",
"bfbc2": "Battlefield Bad Company 2",
"bfs": "BFRIS",
"cod2m": "Call of Duty 2 Master",
"cod2s": "Call of Duty 2",
"cod4m": "Call of Duty 4 Master",
"cod4s": "Call of Duty 4",
"codm": "Call of Duty Master",
"cods": "Call of Duty",
"crs": "Command and Conquer: Renegade",
"crysis": "Crysis",
"cube2": "Sauerbraten",
"d3g": "Descent3 Gamespy Protocol",
"d3m": "Descent3 Master (PXO)",
"d3p": "Descent3 PXO protocol",
"d3s": "Descent3",
"dm3m": "Doom 3 Master",
"dm3s": "Doom 3",
"efm": "Star Trek: Elite Force",
"efs": "Star Trek: Elite Force",
"etqws": "QuakeWars",
"eye": "All Seeing Eye Protocol",
"fcs": "FarCry",
"fls": "Frontlines-Fuel of War",
"gps": "Gamespy Protocol",
"grs": "Ghost Recon",
"gs2": "Gamespy V2 Protocol",
"gs3": "Gamespy V3 Protocol",
"gs4": "Gamespy V4 Protocol",
"gsm": "Gamespy Master",
"h2s": "Hexen II",
"hazes": "Haze Protocol",
"hl2s": "Half-Life 2",
"hla2s": "Half-Life",
"hla2sm": "Steam Master",
"hlm": "Half-Life Master",
"hlqs": "Half-Life",
"hls": "Half-Life",
"hrs": "Heretic II",
"hwm": "HexenWorld Master",
"hws": "HexenWorld",
"iourtm": "ioUrbanTerror Master",
"iourts": "ioUrbanTerror",
"jk3m": "Jedi Knight: Jedi Academy",
"jk3s": "Jedi Knight: Jedi Academy",
"kps": "Kingpin",
"maqs": "Medal of Honor: Allied Assault (Q)",
"mas": "Medal of Honor: Allied Assault",
"mhs": "Medal of Honor: Allied Assault",
"mumble": "Mumble",
"netp": "NetPanzer",
"netpm": "NetPanzer Master",
"nexuizm": "Nexuiz Master",
"nexuizs": "Nexuiz",
"openarenam": "OpenArena Master",
"openarenas": "OpenArena",
"ottdm": "openTTD Master",
"ottds": "OpenTTD",
"preym": "Prey Master",
"preys": "PREY",
"prs": "Pariah",
"q2m": "Quake II Master",
"q2s": "Quake II",
"q3m": "Quake III Master",
"q3s": "Quake III: Arena",
"q4m": "Quake 4 Master",
"q4s": "Quake 4",
"qs": "Quake",
"qwm": "QuakeWorld Master",
"qws": "QuakeWorld",
"rss": "Ravenshield",
"rwm": "Return to Castle Wolfenstein Master",
"rws": "Return to Castle Wolfenstein",
"sas": "Savage",
"sfs": "Soldier of Fortune",
"sgs": "Shogo: Mobile Armor Division",
"sms": "Serious Sam",
"sns": "Sin",
"sof2m": "SOF2 Master",
"sof2m1.0": "SOF2 Master (1.0)",
"sof2s": "Soldier of Fortune 2",
"stm": "Steam Master",
"stma2s": "Steam Master for A2S",
"stmhl2": "Steam Master for HL2",
"t2m": "Tribes 2 Master",
"t2s": "Tribes 2",
"tbm": "Tribes Master",
"tbs": "Tribes",
"tee": "Teeworlds",
"terraria": "Terraria",
"tm": "TrackMania",
"tremulous": "Tremulous",
"tremulousm": "Tremulous Master",
"ts2": "Teamspeak 2",
"ts3": "Teamspeak 3",
"uns": "Unreal",
"ut2004m": "UT2004 Master",
"ut2004s": "UT2004",
"ut2s": "Unreal Tournament 2003",
"ut3s": "UT3",
"ventrilo": "Ventrilo",
"warsowm": "Warsow Master",
"warsows": "Warsow",
"waws": "Call of Duty World at War",
"wics": "World in Conflict",
"woetm": "Enemy Territory Master",
"woets": "Enemy Territory",
"wolfs": "Wolfenstein"
}