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-rw-r--r--accel-pppd/lua/CMakeLists.txt12
-rw-r--r--accel-pppd/lua/lua_bit.c191
-rw-r--r--accel-pppd/lua/lua_lpack.c271
-rw-r--r--accel-pppd/lua/luasupp.h9
4 files changed, 483 insertions, 0 deletions
diff --git a/accel-pppd/lua/CMakeLists.txt b/accel-pppd/lua/CMakeLists.txt
new file mode 100644
index 0000000..699cfb7
--- /dev/null
+++ b/accel-pppd/lua/CMakeLists.txt
@@ -0,0 +1,12 @@
+INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
+INCLUDE_DIRECTORIES(${LUA_INCLUDE_DIR})
+
+SET(sources
+ lua_lpack.c
+ lua_bit.c
+)
+
+ADD_LIBRARY(luasupp SHARED ${sources})
+TARGET_LINK_LIBRARIES(luasupp ${LUA_LIBRARIES})
+
+INSTALL(TARGETS luasupp LIBRARY DESTINATION lib${LIB_SUFFIX}/accel-ppp)
diff --git a/accel-pppd/lua/lua_bit.c b/accel-pppd/lua/lua_bit.c
new file mode 100644
index 0000000..be7e768
--- /dev/null
+++ b/accel-pppd/lua/lua_bit.c
@@ -0,0 +1,191 @@
+/*
+** Lua BitOp -- a bit operations library for Lua 5.1/5.2.
+** http://bitop.luajit.org/
+**
+** Copyright (C) 2008-2012 Mike Pall. All rights reserved.
+**
+** Permission is hereby granted, free of charge, to any person obtaining
+** a copy of this software and associated documentation files (the
+** "Software"), to deal in the Software without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Software, and to
+** permit persons to whom the Software is furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be
+** included in all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+**
+** [ MIT license: http://www.opensource.org/licenses/mit-license.php ]
+*/
+
+#define LUA_BITOP_VERSION "1.0.2"
+
+#define LUA_LIB
+#include "lua.h"
+#include "lauxlib.h"
+
+#if LUA_VERSION_NUM < 503
+
+#ifdef _MSC_VER
+/* MSVC is stuck in the last century and doesn't have C99's stdint.h. */
+typedef __int32 int32_t;
+typedef unsigned __int32 uint32_t;
+typedef unsigned __int64 uint64_t;
+#else
+#include <stdint.h>
+#endif
+
+typedef int32_t SBits;
+typedef uint32_t UBits;
+
+typedef union {
+ lua_Number n;
+#ifdef LUA_NUMBER_DOUBLE
+ uint64_t b;
+#else
+ UBits b;
+#endif
+} BitNum;
+
+/* Convert argument to bit type. */
+static UBits barg(lua_State *L, int idx)
+{
+ BitNum bn;
+ UBits b;
+#if LUA_VERSION_NUM < 502
+ bn.n = lua_tonumber(L, idx);
+#else
+ bn.n = luaL_checknumber(L, idx);
+#endif
+#if defined(LUA_NUMBER_DOUBLE)
+ bn.n += 6755399441055744.0; /* 2^52+2^51 */
+#ifdef SWAPPED_DOUBLE
+ b = (UBits)(bn.b >> 32);
+#else
+ b = (UBits)bn.b;
+#endif
+#elif defined(LUA_NUMBER_INT) || defined(LUA_NUMBER_LONG) || \
+ defined(LUA_NUMBER_LONGLONG) || defined(LUA_NUMBER_LONG_LONG) || \
+ defined(LUA_NUMBER_LLONG)
+ if (sizeof(UBits) == sizeof(lua_Number))
+ b = bn.b;
+ else
+ b = (UBits)(SBits)bn.n;
+#elif defined(LUA_NUMBER_FLOAT)
+#error "A 'float' lua_Number type is incompatible with this library"
+#else
+#error "Unknown number type, check LUA_NUMBER_* in luaconf.h"
+#endif
+#if LUA_VERSION_NUM < 502
+ if (b == 0 && !lua_isnumber(L, idx)) {
+ luaL_typerror(L, idx, "number");
+ }
+#endif
+ return b;
+}
+
+/* Return bit type. */
+#define BRET(b) lua_pushnumber(L, (lua_Number)(SBits)(b)); return 1;
+
+static int bit_tobit(lua_State *L) { BRET(barg(L, 1)) }
+static int bit_bnot(lua_State *L) { BRET(~barg(L, 1)) }
+
+#define BIT_OP(func, opr) \
+ static int func(lua_State *L) { int i; UBits b = barg(L, 1); \
+ for (i = lua_gettop(L); i > 1; i--) b opr barg(L, i); BRET(b) }
+BIT_OP(bit_band, &=)
+BIT_OP(bit_bor, |=)
+BIT_OP(bit_bxor, ^=)
+
+#define bshl(b, n) (b << n)
+#define bshr(b, n) (b >> n)
+#define bsar(b, n) ((SBits)b >> n)
+#define brol(b, n) ((b << n) | (b >> (32-n)))
+#define bror(b, n) ((b << (32-n)) | (b >> n))
+#define BIT_SH(func, fn) \
+ static int func(lua_State *L) { \
+ UBits b = barg(L, 1); UBits n = barg(L, 2) & 31; BRET(fn(b, n)) }
+BIT_SH(bit_lshift, bshl)
+BIT_SH(bit_rshift, bshr)
+BIT_SH(bit_arshift, bsar)
+BIT_SH(bit_rol, brol)
+BIT_SH(bit_ror, bror)
+
+static int bit_bswap(lua_State *L)
+{
+ UBits b = barg(L, 1);
+ b = (b >> 24) | ((b >> 8) & 0xff00) | ((b & 0xff00) << 8) | (b << 24);
+ BRET(b)
+}
+
+static int bit_tohex(lua_State *L)
+{
+ UBits b = barg(L, 1);
+ SBits n = lua_isnone(L, 2) ? 8 : (SBits)barg(L, 2);
+ const char *hexdigits = "0123456789abcdef";
+ char buf[8];
+ int i;
+ if (n < 0) { n = -n; hexdigits = "0123456789ABCDEF"; }
+ if (n > 8) n = 8;
+ for (i = (int)n; --i >= 0; ) { buf[i] = hexdigits[b & 15]; b >>= 4; }
+ lua_pushlstring(L, buf, (size_t)n);
+ return 1;
+}
+
+static const struct luaL_Reg bit_funcs[] = {
+ { "tobit", bit_tobit },
+ { "bnot", bit_bnot },
+ { "band", bit_band },
+ { "bor", bit_bor },
+ { "bxor", bit_bxor },
+ { "lshift", bit_lshift },
+ { "rshift", bit_rshift },
+ { "arshift", bit_arshift },
+ { "rol", bit_rol },
+ { "ror", bit_ror },
+ { "bswap", bit_bswap },
+ { "tohex", bit_tohex },
+ { NULL, NULL }
+};
+
+/* Signed right-shifts are implementation-defined per C89/C99.
+** But the de facto standard are arithmetic right-shifts on two's
+** complement CPUs. This behaviour is required here, so test for it.
+*/
+#define BAD_SAR (bsar(-8, 2) != (SBits)-2)
+
+LUALIB_API __attribute__((visibility("default"))) int luaopen_bit(lua_State *L)
+{
+ UBits b;
+ lua_pushnumber(L, (lua_Number)1437217655L);
+ b = barg(L, -1);
+ if (b != (UBits)1437217655L || BAD_SAR) { /* Perform a simple self-test. */
+ const char *msg = "compiled with incompatible luaconf.h";
+#ifdef LUA_NUMBER_DOUBLE
+#ifdef _WIN32
+ if (b == (UBits)1610612736L)
+ msg = "use D3DCREATE_FPU_PRESERVE with DirectX";
+#endif
+ if (b == (UBits)1127743488L)
+ msg = "not compiled with SWAPPED_DOUBLE";
+#endif
+ if (BAD_SAR)
+ msg = "arithmetic right-shift broken";
+ luaL_error(L, "bit library self-test failed (%s)", msg);
+ }
+#if LUA_VERSION_NUM < 502
+ luaL_register(L, "bit", bit_funcs);
+#else
+ luaL_newlib(L, bit_funcs);
+#endif
+ return 1;
+}
+#endif
diff --git a/accel-pppd/lua/lua_lpack.c b/accel-pppd/lua/lua_lpack.c
new file mode 100644
index 0000000..e9ceb85
--- /dev/null
+++ b/accel-pppd/lua/lua_lpack.c
@@ -0,0 +1,271 @@
+/*
+* lpack.c
+* a Lua library for packing and unpacking binary data
+* Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br>
+* 29 Jun 2007 19:27:20
+* This code is hereby placed in the public domain.
+* with contributions from Ignacio Castaņo <castanyo@yahoo.es> and
+* Roberto Ierusalimschy <roberto@inf.puc-rio.br>.
+*/
+
+#define OP_ZSTRING 'z' /* zero-terminated string */
+#define OP_BSTRING 'p' /* string preceded by length byte */
+#define OP_WSTRING 'P' /* string preceded by length word */
+#define OP_SSTRING 'a' /* string preceded by length size_t */
+#define OP_STRING 'A' /* string */
+#define OP_FLOAT 'f' /* float */
+#define OP_DOUBLE 'd' /* double */
+#define OP_NUMBER 'n' /* Lua number */
+#define OP_CHAR 'c' /* char */
+#define OP_BYTE 'b' /* byte = unsigned char */
+#define OP_SHORT 'h' /* short */
+#define OP_USHORT 'H' /* unsigned short */
+#define OP_INT 'i' /* int */
+#define OP_UINT 'I' /* unsigned int */
+#define OP_LONG 'l' /* long */
+#define OP_ULONG 'L' /* unsigned long */
+#define OP_LITTLEENDIAN '<' /* little endian */
+#define OP_BIGENDIAN '>' /* big endian */
+#define OP_NATIVE '=' /* native endian */
+
+#include <ctype.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "lua.h"
+#include "lualib.h"
+#include "lauxlib.h"
+
+static void badcode(lua_State *L, int c)
+{
+ char s[]="bad code `?'";
+ s[sizeof(s)-3]=c;
+ luaL_argerror(L,1,s);
+}
+
+static int doendian(int c)
+{
+ int x=1;
+ int e=*(char*)&x;
+ if (c==OP_LITTLEENDIAN) return !e;
+ if (c==OP_BIGENDIAN) return e;
+ if (c==OP_NATIVE) return 0;
+ return 0;
+}
+
+static void doswap(int swap, void *p, size_t n)
+{
+ if (swap)
+ {
+ char *a=p;
+ int i,j;
+ for (i=0, j=n-1, n=n/2; n--; i++, j--)
+ {
+ char t=a[i]; a[i]=a[j]; a[j]=t;
+ }
+ }
+}
+
+#define UNPACKNUMBER(OP,T) \
+ case OP: \
+ { \
+ T a; \
+ int m=sizeof(a); \
+ if (i+m>len) goto done; \
+ memcpy(&a,s+i,m); \
+ i+=m; \
+ doswap(swap,&a,m); \
+ lua_pushinteger(L,(lua_Integer)a); \
+ ++n; \
+ break; \
+ }
+
+#define UNPACKSTRING(OP,T) \
+ case OP: \
+ { \
+ T l; \
+ int m=sizeof(l); \
+ if (i+m>len) goto done; \
+ memcpy(&l,s+i,m); \
+ doswap(swap,&l,m); \
+ if (i+m+l>len) goto done; \
+ i+=m; \
+ lua_pushlstring(L,s+i,l); \
+ i+=l; \
+ ++n; \
+ break; \
+ }
+
+static int l_unpack(lua_State *L) /** unpack(s,f,[init]) */
+{
+ size_t len;
+ const char *s=luaL_checklstring(L,1,&len);
+ const char *f=luaL_checkstring(L,2);
+ int i=luaL_optnumber(L,3,1)-1;
+ int n=0;
+ int swap=0;
+ lua_pushnil(L);
+ while (*f)
+ {
+ int c=*f++;
+ int N=1;
+ if (isdigit(*f))
+ {
+ N=0;
+ while (isdigit(*f)) N=10*N+(*f++)-'0';
+ if (N==0 && c==OP_STRING) { lua_pushliteral(L,""); ++n; }
+ }
+ while (N--) switch (c)
+ {
+ case OP_LITTLEENDIAN:
+ case OP_BIGENDIAN:
+ case OP_NATIVE:
+ {
+ swap=doendian(c);
+ N=0;
+ break;
+ }
+ case OP_STRING:
+ {
+ ++N;
+ if (i+N>len) goto done;
+ lua_pushlstring(L,s+i,N);
+ i+=N;
+ ++n;
+ N=0;
+ break;
+ }
+ case OP_ZSTRING:
+ {
+ size_t l;
+ if (i>=len) goto done;
+ l=strlen(s+i);
+ lua_pushlstring(L,s+i,l);
+ i+=l+1;
+ ++n;
+ break;
+ }
+ UNPACKSTRING(OP_BSTRING, unsigned char)
+ UNPACKSTRING(OP_WSTRING, unsigned short)
+ UNPACKSTRING(OP_SSTRING, size_t)
+ UNPACKNUMBER(OP_NUMBER, lua_Number)
+ UNPACKNUMBER(OP_DOUBLE, double)
+ UNPACKNUMBER(OP_FLOAT, float)
+ UNPACKNUMBER(OP_CHAR, int8_t)
+ UNPACKNUMBER(OP_BYTE, uint8_t)
+ UNPACKNUMBER(OP_SHORT, int16_t)
+ UNPACKNUMBER(OP_USHORT, uint16_t)
+ UNPACKNUMBER(OP_INT, int32_t)
+ UNPACKNUMBER(OP_UINT, uint32_t)
+ UNPACKNUMBER(OP_LONG, int64_t)
+ UNPACKNUMBER(OP_ULONG, uint64_t)
+ case ' ': case ',':
+ break;
+ default:
+ badcode(L,c);
+ break;
+ }
+ }
+done:
+ lua_pushnumber(L,i+1);
+ lua_replace(L,-n-2);
+ return n+1;
+}
+
+#define PACKNUMBER(OP,T) \
+ case OP: \
+ { \
+ T a=(T)luaL_checknumber(L,i++); \
+ doswap(swap,&a,sizeof(a)); \
+ luaL_addlstring(&b,(void*)&a,sizeof(a)); \
+ break; \
+ }
+
+#define PACKSTRING(OP,T) \
+ case OP: \
+ { \
+ size_t l; \
+ const char *a=luaL_checklstring(L,i++,&l); \
+ T ll=(T)l; \
+ doswap(swap,&ll,sizeof(ll)); \
+ luaL_addlstring(&b,(void*)&ll,sizeof(ll)); \
+ luaL_addlstring(&b,a,l); \
+ break; \
+ }
+
+static int l_pack(lua_State *L) /** pack(f,...) */
+{
+ int i=2;
+ const char *f=luaL_checkstring(L,1);
+ int swap=0;
+ luaL_Buffer b;
+ luaL_buffinit(L,&b);
+ while (*f)
+ {
+ int c=*f++;
+ int N=1;
+ if (isdigit(*f))
+ {
+ N=0;
+ while (isdigit(*f)) N=10*N+(*f++)-'0';
+ }
+ while (N--) switch (c)
+ {
+ case OP_LITTLEENDIAN:
+ case OP_BIGENDIAN:
+ case OP_NATIVE:
+ {
+ swap=doendian(c);
+ N=0;
+ break;
+ }
+ case OP_STRING:
+ case OP_ZSTRING:
+ {
+ size_t l;
+ const char *a=luaL_checklstring(L,i++,&l);
+ luaL_addlstring(&b,a,l+(c==OP_ZSTRING));
+ break;
+ }
+ PACKSTRING(OP_BSTRING, unsigned char)
+ PACKSTRING(OP_WSTRING, unsigned short)
+ PACKSTRING(OP_SSTRING, size_t)
+ PACKNUMBER(OP_NUMBER, lua_Number)
+ PACKNUMBER(OP_DOUBLE, double)
+ PACKNUMBER(OP_FLOAT, float)
+ PACKNUMBER(OP_CHAR, int8_t)
+ PACKNUMBER(OP_BYTE, uint8_t)
+ PACKNUMBER(OP_SHORT, int16_t)
+ PACKNUMBER(OP_USHORT, uint16_t)
+ PACKNUMBER(OP_INT, int32_t)
+ PACKNUMBER(OP_UINT, uint32_t)
+ PACKNUMBER(OP_LONG, int64_t)
+ PACKNUMBER(OP_ULONG, uint64_t)
+ case ' ': case ',':
+ break;
+ default:
+ badcode(L,c);
+ break;
+ }
+ }
+ luaL_pushresult(&b);
+ return 1;
+}
+
+static const struct luaL_Reg R[] =
+{
+ {"pack", l_pack},
+ {"unpack", l_unpack},
+ {NULL, NULL}
+};
+
+LUALIB_API __attribute__((visibility("default"))) int luaopen_lpack(lua_State *L)
+{
+#if LUA_VERSION_NUM < 502
+ luaL_register(L, LUA_STRLIBNAME, R);
+#else
+ luaL_newmetatable(L, LUA_STRLIBNAME);
+ luaL_newlib(L, R);
+#endif
+ return 1;
+}
diff --git a/accel-pppd/lua/luasupp.h b/accel-pppd/lua/luasupp.h
new file mode 100644
index 0000000..fa7a7c3
--- /dev/null
+++ b/accel-pppd/lua/luasupp.h
@@ -0,0 +1,9 @@
+#ifndef __LUASUPP_H
+#define __LUASUPP_H
+
+#include "lua.h"
+
+int luaopen_lpack(lua_State *L);
+int luaopen_bit(lua_State *L);
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-17 18:46:48 +0000