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https://github.com/jart/cosmopolitan.git
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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
98 lines
3.6 KiB
C
98 lines
3.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "net/finger/finger.h"
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#include "third_party/lua/lauxlib.h"
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// finger.DescribeSyn(syn_packet_bytes:str)
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// ├─→ description:str
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// └─→ nil, error:str
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static int LuaDescribeSyn(lua_State *L) {
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char *q, *r;
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size_t n, m;
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const char *p;
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luaL_Buffer b;
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if (!lua_isnoneornil(L, 1)) {
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p = luaL_checklstring(L, 1, &n);
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m = 128;
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q = luaL_buffinitsize(L, &b, m);
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if ((r = DescribeSyn(q, m, p, n))) {
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luaL_pushresultsize(&b, r - q);
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return 1;
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} else {
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lua_pushnil(L);
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lua_pushstring(L, "bad syn packet");
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return 2;
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}
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} else {
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return lua_gettop(L);
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}
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}
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// finger.FingerSyn(syn_packet_bytes:str)
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// ├─→ synfinger:uint32
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// └─→ nil, error:str
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static int LuaFingerSyn(lua_State *L) {
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size_t n;
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uint32_t x;
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const char *p;
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if (!lua_isnoneornil(L, 1)) {
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p = luaL_checklstring(L, 1, &n);
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if ((x = FingerSyn(p, n))) {
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lua_pushinteger(L, x);
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return 1;
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} else {
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lua_pushnil(L);
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lua_pushstring(L, "bad syn packet");
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return 2;
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}
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} else {
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return lua_gettop(L);
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}
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}
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// finger.GetSynFingerOs(synfinger:uint32)
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// ├─→ osname:str
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// └─→ nil, error:str
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static int LuaGetSynFingerOs(lua_State *L) {
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int os;
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if (!lua_isnoneornil(L, 1)) {
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if ((os = GetSynFingerOs(luaL_checkinteger(L, 1)))) {
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lua_pushstring(L, GetOsName(os));
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return 1;
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} else {
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lua_pushnil(L);
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lua_pushstring(L, "unknown syn os fingerprint");
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return 2;
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}
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} else {
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return lua_gettop(L);
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}
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}
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static const luaL_Reg kLuaFinger[] = {
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{"DescribeSyn", LuaDescribeSyn}, //
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{"FingerSyn", LuaFingerSyn}, //
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{"GetSynFingerOs", LuaGetSynFingerOs}, //
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{0}, //
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};
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int LuaFinger(lua_State *L) {
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luaL_newlib(L, kLuaFinger);
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return 1;
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}
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