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https://github.com/libretro/libretro-tyrquake.git
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qw: get rid of simple_crypt obfuscation
Presumably a simple anti-cheat precaution to stop people running "strings" on the binaries in the days before the source was available. The de-obfuscated strings are sent over the wire in the net protocol anyway. Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
This commit is contained in:
Kevin Shanahan
parent
cc4a68e120
commit
e227a1da93
@ -152,31 +152,6 @@ int fps_count;
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static jmp_buf host_abort;
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static float server_version = 0;// version of server we connected to
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char emodel_name[] =
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{ 'e' ^ 0xff, 'm' ^ 0xff, 'o' ^ 0xff, 'd' ^ 0xff, 'e' ^ 0xff, 'l' ^ 0xff,
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0
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};
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char pmodel_name[] =
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{ 'p' ^ 0xff, 'm' ^ 0xff, 'o' ^ 0xff, 'd' ^ 0xff, 'e' ^ 0xff, 'l' ^ 0xff,
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0
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};
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char prespawn_name[] =
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{ 'p' ^ 0xff, 'r' ^ 0xff, 'e' ^ 0xff, 's' ^ 0xff, 'p' ^ 0xff, 'a' ^ 0xff,
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'w' ^ 0xff, 'n' ^ 0xff,
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' ' ^ 0xff, '%' ^ 0xff, 'i' ^ 0xff, ' ' ^ 0xff, '0' ^ 0xff, ' ' ^ 0xff,
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'%' ^ 0xff, 'i' ^ 0xff, 0
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};
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char modellist_name[] =
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{ 'm' ^ 0xff, 'o' ^ 0xff, 'd' ^ 0xff, 'e' ^ 0xff, 'l' ^ 0xff, 'l' ^ 0xff,
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'i' ^ 0xff, 's' ^ 0xff, 't' ^ 0xff,
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' ' ^ 0xff, '%' ^ 0xff, 'i' ^ 0xff, ' ' ^ 0xff, '%' ^ 0xff, 'i' ^ 0xff, 0
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};
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char soundlist_name[] =
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{ 's' ^ 0xff, 'o' ^ 0xff, 'u' ^ 0xff, 'n' ^ 0xff, 'd' ^ 0xff, 'l' ^ 0xff,
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'i' ^ 0xff, 's' ^ 0xff, 't' ^ 0xff,
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' ' ^ 0xff, '%' ^ 0xff, 'i' ^ 0xff, ' ' ^ 0xff, '%' ^ 0xff, 'i' ^ 0xff, 0
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};
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/*
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==================
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CL_Quit_f
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@ -645,7 +620,7 @@ CL_FullInfo_f(void)
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if (*s)
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s++;
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if (!strcasecmp(key, pmodel_name) || !strcasecmp(key, emodel_name))
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if (!strcasecmp(key, "pmodel") || !strcasecmp(key, "emodel"))
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continue;
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Info_SetValueForKey(cls.userinfo, key, value, MAX_INFO_STRING);
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@ -670,8 +645,7 @@ CL_SetInfo_f(void)
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Con_Printf("usage: setinfo [ <key> <value> ]\n");
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return;
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}
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if (!strcasecmp(Cmd_Argv(1), pmodel_name)
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|| !strcmp(Cmd_Argv(1), emodel_name))
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if (!strcasecmp(Cmd_Argv(1), "pmodel") || !strcmp(Cmd_Argv(1), "emodel"))
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return;
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Info_SetValueForKey(cls.userinfo, Cmd_Argv(1), Cmd_Argv(2),
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@ -1423,23 +1397,6 @@ Host_Frame(float time)
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fps_count++;
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}
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static void
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simple_crypt(char *buf, int len)
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{
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while (len--)
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*buf++ ^= 0xff;
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}
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void
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Host_FixupModelNames(void)
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{
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simple_crypt(emodel_name, sizeof(emodel_name) - 1);
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simple_crypt(pmodel_name, sizeof(pmodel_name) - 1);
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simple_crypt(prespawn_name, sizeof(prespawn_name) - 1);
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simple_crypt(modellist_name, sizeof(modellist_name) - 1);
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simple_crypt(soundlist_name, sizeof(soundlist_name) - 1);
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}
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//============================================================================
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/*
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@ -1473,8 +1430,6 @@ Host_Init(quakeparms_t *parms)
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COM_Init();
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Host_FixupModelNames();
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NET_Init(PORT_CLIENT);
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Netchan_Init();
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@ -261,9 +261,8 @@ Model_NextDownload(void)
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// done with modellist, request first of static signon messages
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MSG_WriteByte(&cls.netchan.message, clc_stringcmd);
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// MSG_WriteString (&cls.netchan.message, va("prespawn %i 0 %i", cl.servercount, cl.worldmodel->checksum2));
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MSG_WriteString(&cls.netchan.message,
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va(prespawn_name, cl.servercount,
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va("prespawn %i 0 %i", cl.servercount,
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cl.worldmodel->checksum2));
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}
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@ -302,9 +301,8 @@ Sound_NextDownload(void)
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cl_spikeindex = -1;
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cl_flagindex = -1;
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MSG_WriteByte(&cls.netchan.message, clc_stringcmd);
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// MSG_WriteString (&cls.netchan.message, va("modellist %i 0", cl.servercount));
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MSG_WriteString(&cls.netchan.message,
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va(modellist_name, cl.servercount, 0));
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va("modellist %i 0", cl.servercount));
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}
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@ -602,16 +600,15 @@ CL_ParseServerData(void)
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movevars.entgravity = MSG_ReadFloat();
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// seperate the printfs so the server message can have a color
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Con_Printf
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("\n\n\35\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\37\n\n");
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Con_Printf("\n\n\35\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36"
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"\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\36\37\n\n");
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Con_Printf("%c%s\n", 2, str);
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// ask for the sound list next
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memset(cl.sound_name, 0, sizeof(cl.sound_name));
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MSG_WriteByte(&cls.netchan.message, clc_stringcmd);
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// MSG_WriteString (&cls.netchan.message, va("soundlist %i 0", cl.servercount));
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MSG_WriteString(&cls.netchan.message,
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va(soundlist_name, cl.servercount, 0));
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va("soundlist %i 0", cl.servercount));
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// now waiting for downloads, etc
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cls.state = ca_onserver;
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@ -633,7 +630,6 @@ CL_ParseSoundlist(void)
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// memset (cl.sound_precache, 0, sizeof(cl.sound_precache));
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numsounds = MSG_ReadByte();
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for (;;) {
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str = MSG_ReadString();
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if (!str[0])
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@ -645,12 +641,10 @@ CL_ParseSoundlist(void)
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}
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n = MSG_ReadByte();
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if (n) {
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MSG_WriteByte(&cls.netchan.message, clc_stringcmd);
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// MSG_WriteString (&cls.netchan.message, va("soundlist %i %i", cl.servercount, n));
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MSG_WriteString(&cls.netchan.message,
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va(soundlist_name, cl.servercount, n));
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va("soundlist %i %i", cl.servercount, n));
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return;
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}
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@ -695,9 +689,8 @@ CL_ParseModellist(void)
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if (n) {
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MSG_WriteByte(&cls.netchan.message, clc_stringcmd);
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// MSG_WriteString (&cls.netchan.message, va("modellist %i %i", cl.servercount, n));
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MSG_WriteString(&cls.netchan.message,
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va(modellist_name, cl.servercount, n));
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va("modellist %i %i", cl.servercount, n));
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return;
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}
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@ -380,12 +380,6 @@ void CL_BeginServerConnect(void);
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extern int cl_numvisedicts;
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extern entity_t cl_visedicts[];
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extern char emodel_name[];
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extern char pmodel_name[];
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extern char prespawn_name[];
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extern char modellist_name[];
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extern char soundlist_name[];
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extern int fps_count;
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extern int minimum_memory;
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@ -247,13 +247,13 @@ Mod_LoadAliasModel(const model_loader_t *loader, model_t *mod, void *buffer,
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snprintf(st, sizeof(st), "%d", (int)crc);
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Info_SetValueForKey(cls.userinfo,
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!strcmp(loadmodel->name, "progs/player.mdl") ?
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pmodel_name : emodel_name, st, MAX_INFO_STRING);
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"pmodel" : "emodel", st, MAX_INFO_STRING);
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if (cls.state >= ca_connected) {
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MSG_WriteByte(&cls.netchan.message, clc_stringcmd);
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snprintf(st, sizeof(st), "setinfo %s %d",
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!strcmp(loadmodel->name, "progs/player.mdl") ?
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pmodel_name : emodel_name, (int)crc);
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"pmodel" : "emodel", (int)crc);
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SZ_Print(&cls.netchan.message, st);
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}
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}
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