Method GetUnifiedSteamIdentity

core/logic/AdminCache.cpp:1081–1134

* Converts Steam2 id, Steam3 id, or SteamId64 to unified, legacy * admin identity format. (account id part of Steam2 format) */

 * admin identity format. (account id part of Steam2 format)
 */
bool AdminCache::GetUnifiedSteamIdentity(const char *ident, char *out, size_t maxlen)
{
	int len = strlen(ident);
	if (!strcmp(ident, "BOT"))
	{
		// Bots
		strncopy(out, ident, maxlen);
		return true;
	}
	else if (len >= 11 && !strncmp(ident, "STEAM_", 6) && ident[8] != '_')
	{
		// non-bot/lan Steam2 Id, strip off the STEAM_* part
		ke::SafeStrcpy(out, maxlen, &ident[8]);
		return true;
	}
	else if (len >= 7 && !strncmp(ident, "[U:", 3) && ident[len-1] == ']')
	{
		// Steam3 Id, replicate the Steam2 Post-"STEAM_" part
		uint32_t accountId = strtoul(&ident[5], nullptr, 10);
		ke::SafeSprintf(out, maxlen, "%u:%u", accountId & 1, accountId >> 1);
		return true;
	}
	else
	{
		// 64-bit CSteamID, replicate the Steam2 Post-"STEAM_" part

		// some constants from steamclientpublic.h
		static const uint32_t k_EAccountTypeIndividual = 1;
		static const int k_EUniverseInvalid = 0;
		static const int k_EUniverseMax = 5;
		static const unsigned int k_unSteamUserWebInstance	= 4;
		
		uint64_t steamId = strtoull(ident, nullptr, 10);
		if (steamId > 0)
		{
			// Make some attempt at being sure it's a valid id rather than other number,
			// even though we're only going to use the lower 32 bits.
			uint32_t accountId = steamId & 0xFFFFFFFF;
			uint32_t accountType = (steamId >> 52) & 0xF;
			int universe = steamId >> 56;
			uint32_t accountInstance = (steamId >> 32) & 0xFFFFF;
			if (accountId > 0
				&& universe > k_EUniverseInvalid && universe < k_EUniverseMax
				&& accountType == k_EAccountTypeIndividual && accountInstance <= k_unSteamUserWebInstance
				)
			{
				ke::SafeSprintf(out, maxlen, "%u:%u", accountId & 1, accountId >> 1);
				return true;
			}
		}
	}
	
	return false;
}

bool AdminCache::BindAdminIdentity(AdminId id, const char *auth, const char *ident)
{