mirror of
https://github.com/InoriRus/Kyty.git
synced 2026-08-28 05:06:40 +00:00
update 3rdparty libs
This commit is contained in:
InoriRus
Vendored
+285
-210
@@ -1,14 +1,18 @@
|
||||
/*
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** $Id: lundump.c,v 2.22.1.1 2013/04/12 18:48:47 roberto Exp $
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** $Id: lundump.c $
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** load precompiled Lua chunks
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** See Copyright Notice in lua.h
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*/
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#include <string.h>
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#define lundump_c
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#define LUA_CORE
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#include "lprefix.h"
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#include <limits.h>
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#include <string.h>
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#include "lua.h"
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#include "ldebug.h"
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@@ -20,239 +24,310 @@
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#include "lundump.h"
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#include "lzio.h"
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typedef struct {
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lua_State* L;
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ZIO* Z;
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Mbuffer* b;
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const char* name;
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} LoadState;
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static l_noret error(LoadState* S, const char* why)
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{
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luaO_pushfstring(S->L,"%s: %s precompiled chunk",S->name,why);
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luaD_throw(S->L,LUA_ERRSYNTAX);
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}
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#define LoadMem(S,b,n,size) LoadBlock(S,b,(n)*(size))
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#define LoadByte(S) (lu_byte)LoadChar(S)
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#define LoadVar(S,x) LoadMem(S,&x,1,sizeof(x))
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#define LoadVector(S,b,n,size) LoadMem(S,b,n,size)
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#if !defined(luai_verifycode)
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#define luai_verifycode(L,b,f) /* empty */
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#define luai_verifycode(L,f) /* empty */
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#endif
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static void LoadBlock(LoadState* S, void* b, size_t size)
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{
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if (luaZ_read(S->Z,b,size)!=0) error(S,"truncated");
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typedef struct {
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lua_State *L;
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ZIO *Z;
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const char *name;
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} LoadState;
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static l_noret error (LoadState *S, const char *why) {
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luaO_pushfstring(S->L, "%s: bad binary format (%s)", S->name, why);
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luaD_throw(S->L, LUA_ERRSYNTAX);
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}
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static int LoadChar(LoadState* S)
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{
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char x;
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LoadVar(S,x);
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return x;
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/*
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** All high-level loads go through loadVector; you can change it to
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** adapt to the endianness of the input
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*/
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#define loadVector(S,b,n) loadBlock(S,b,(n)*sizeof((b)[0]))
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static void loadBlock (LoadState *S, void *b, size_t size) {
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if (luaZ_read(S->Z, b, size) != 0)
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error(S, "truncated chunk");
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}
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static int LoadInt(LoadState* S)
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{
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int x;
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LoadVar(S,x);
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if (x<0) error(S,"corrupted");
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return x;
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#define loadVar(S,x) loadVector(S,&x,1)
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static lu_byte loadByte (LoadState *S) {
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int b = zgetc(S->Z);
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if (b == EOZ)
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error(S, "truncated chunk");
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return cast_byte(b);
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}
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static lua_Number LoadNumber(LoadState* S)
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{
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lua_Number x;
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LoadVar(S,x);
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return x;
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static size_t loadUnsigned (LoadState *S, size_t limit) {
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size_t x = 0;
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int b;
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limit >>= 7;
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do {
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b = loadByte(S);
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if (x >= limit)
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error(S, "integer overflow");
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x = (x << 7) | (b & 0x7f);
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} while ((b & 0x80) == 0);
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return x;
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}
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static TString* LoadString(LoadState* S)
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{
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size_t size;
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LoadVar(S,size);
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if (size==0)
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return NULL;
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else
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{
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char* s=luaZ_openspace(S->L,S->b,size);
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LoadBlock(S,s,size*sizeof(char));
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return luaS_newlstr(S->L,s,size-1); /* remove trailing '\0' */
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}
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static size_t loadSize (LoadState *S) {
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return loadUnsigned(S, ~(size_t)0);
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}
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static void LoadCode(LoadState* S, Proto* f)
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{
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int n=LoadInt(S);
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f->code=luaM_newvector(S->L,n,Instruction);
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f->sizecode=n;
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LoadVector(S,f->code,n,sizeof(Instruction));
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static int loadInt (LoadState *S) {
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return cast_int(loadUnsigned(S, INT_MAX));
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}
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static void LoadFunction(LoadState* S, Proto* f);
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static void LoadConstants(LoadState* S, Proto* f)
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{
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int i,n;
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n=LoadInt(S);
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f->k=luaM_newvector(S->L,n,TValue);
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f->sizek=n;
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for (i=0; i<n; i++) setnilvalue(&f->k[i]);
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for (i=0; i<n; i++)
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{
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TValue* o=&f->k[i];
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int t=LoadChar(S);
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switch (t)
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{
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case LUA_TNIL:
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setnilvalue(o);
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break;
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case LUA_TBOOLEAN:
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setbvalue(o,LoadChar(S));
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break;
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case LUA_TNUMBER:
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setnvalue(o,LoadNumber(S));
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break;
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case LUA_TSTRING:
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setsvalue2n(S->L,o,LoadString(S));
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break;
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default: lua_assert(0);
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static lua_Number loadNumber (LoadState *S) {
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lua_Number x;
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loadVar(S, x);
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return x;
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}
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static lua_Integer loadInteger (LoadState *S) {
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lua_Integer x;
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loadVar(S, x);
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return x;
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}
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/*
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** Load a nullable string into prototype 'p'.
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*/
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static TString *loadStringN (LoadState *S, Proto *p) {
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lua_State *L = S->L;
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TString *ts;
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size_t size = loadSize(S);
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if (size == 0) /* no string? */
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return NULL;
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else if (--size <= LUAI_MAXSHORTLEN) { /* short string? */
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char buff[LUAI_MAXSHORTLEN];
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loadVector(S, buff, size); /* load string into buffer */
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ts = luaS_newlstr(L, buff, size); /* create string */
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}
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}
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n=LoadInt(S);
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f->p=luaM_newvector(S->L,n,Proto*);
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f->sizep=n;
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for (i=0; i<n; i++) f->p[i]=NULL;
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for (i=0; i<n; i++)
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{
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f->p[i]=luaF_newproto(S->L);
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LoadFunction(S,f->p[i]);
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}
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else { /* long string */
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ts = luaS_createlngstrobj(L, size); /* create string */
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setsvalue2s(L, L->top, ts); /* anchor it ('loadVector' can GC) */
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luaD_inctop(L);
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loadVector(S, getstr(ts), size); /* load directly in final place */
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L->top--; /* pop string */
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}
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luaC_objbarrier(L, p, ts);
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return ts;
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}
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static void LoadUpvalues(LoadState* S, Proto* f)
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{
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int i,n;
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n=LoadInt(S);
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f->upvalues=luaM_newvector(S->L,n,Upvaldesc);
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f->sizeupvalues=n;
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for (i=0; i<n; i++) f->upvalues[i].name=NULL;
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for (i=0; i<n; i++)
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{
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f->upvalues[i].instack=LoadByte(S);
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f->upvalues[i].idx=LoadByte(S);
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}
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}
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static void LoadDebug(LoadState* S, Proto* f)
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{
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int i,n;
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f->source=LoadString(S);
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n=LoadInt(S);
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f->lineinfo=luaM_newvector(S->L,n,int);
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f->sizelineinfo=n;
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LoadVector(S,f->lineinfo,n,sizeof(int));
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n=LoadInt(S);
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f->locvars=luaM_newvector(S->L,n,LocVar);
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f->sizelocvars=n;
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for (i=0; i<n; i++) f->locvars[i].varname=NULL;
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for (i=0; i<n; i++)
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{
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f->locvars[i].varname=LoadString(S);
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f->locvars[i].startpc=LoadInt(S);
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f->locvars[i].endpc=LoadInt(S);
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}
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n=LoadInt(S);
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for (i=0; i<n; i++) f->upvalues[i].name=LoadString(S);
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}
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static void LoadFunction(LoadState* S, Proto* f)
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{
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f->linedefined=LoadInt(S);
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f->lastlinedefined=LoadInt(S);
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f->numparams=LoadByte(S);
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f->is_vararg=LoadByte(S);
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f->maxstacksize=LoadByte(S);
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LoadCode(S,f);
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LoadConstants(S,f);
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LoadUpvalues(S,f);
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LoadDebug(S,f);
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}
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/* the code below must be consistent with the code in luaU_header */
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#define N0 LUAC_HEADERSIZE
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#define N1 (sizeof(LUA_SIGNATURE)-sizeof(char))
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#define N2 N1+2
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#define N3 N2+6
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static void LoadHeader(LoadState* S)
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{
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lu_byte h[LUAC_HEADERSIZE];
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lu_byte s[LUAC_HEADERSIZE];
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luaU_header(h);
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memcpy(s,h,sizeof(char)); /* first char already read */
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LoadBlock(S,s+sizeof(char),LUAC_HEADERSIZE-sizeof(char));
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if (memcmp(h,s,N0)==0) return;
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if (memcmp(h,s,N1)!=0) error(S,"not a");
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if (memcmp(h,s,N2)!=0) error(S,"version mismatch in");
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if (memcmp(h,s,N3)!=0) error(S,"incompatible"); else error(S,"corrupted");
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}
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/*
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** load precompiled chunk
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** Load a non-nullable string into prototype 'p'.
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*/
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Closure* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff, const char* name)
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{
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LoadState S;
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Closure* cl;
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if (*name=='@' || *name=='=')
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S.name=name+1;
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else if (*name==LUA_SIGNATURE[0])
|
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S.name="binary string";
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else
|
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S.name=name;
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S.L=L;
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S.Z=Z;
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S.b=buff;
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LoadHeader(&S);
|
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cl=luaF_newLclosure(L,1);
|
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setclLvalue(L,L->top,cl); incr_top(L);
|
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cl->l.p=luaF_newproto(L);
|
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LoadFunction(&S,cl->l.p);
|
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if (cl->l.p->sizeupvalues != 1)
|
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{
|
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Proto* p=cl->l.p;
|
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cl=luaF_newLclosure(L,cl->l.p->sizeupvalues);
|
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cl->l.p=p;
|
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setclLvalue(L,L->top-1,cl);
|
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}
|
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luai_verifycode(L,buff,cl->l.p);
|
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return cl;
|
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static TString *loadString (LoadState *S, Proto *p) {
|
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TString *st = loadStringN(S, p);
|
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if (st == NULL)
|
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error(S, "bad format for constant string");
|
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return st;
|
||||
}
|
||||
|
||||
|
||||
static void loadCode (LoadState *S, Proto *f) {
|
||||
int n = loadInt(S);
|
||||
f->code = luaM_newvectorchecked(S->L, n, Instruction);
|
||||
f->sizecode = n;
|
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loadVector(S, f->code, n);
|
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}
|
||||
|
||||
|
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static void loadFunction(LoadState *S, Proto *f, TString *psource);
|
||||
|
||||
|
||||
static void loadConstants (LoadState *S, Proto *f) {
|
||||
int i;
|
||||
int n = loadInt(S);
|
||||
f->k = luaM_newvectorchecked(S->L, n, TValue);
|
||||
f->sizek = n;
|
||||
for (i = 0; i < n; i++)
|
||||
setnilvalue(&f->k[i]);
|
||||
for (i = 0; i < n; i++) {
|
||||
TValue *o = &f->k[i];
|
||||
int t = loadByte(S);
|
||||
switch (t) {
|
||||
case LUA_VNIL:
|
||||
setnilvalue(o);
|
||||
break;
|
||||
case LUA_VFALSE:
|
||||
setbfvalue(o);
|
||||
break;
|
||||
case LUA_VTRUE:
|
||||
setbtvalue(o);
|
||||
break;
|
||||
case LUA_VNUMFLT:
|
||||
setfltvalue(o, loadNumber(S));
|
||||
break;
|
||||
case LUA_VNUMINT:
|
||||
setivalue(o, loadInteger(S));
|
||||
break;
|
||||
case LUA_VSHRSTR:
|
||||
case LUA_VLNGSTR:
|
||||
setsvalue2n(S->L, o, loadString(S, f));
|
||||
break;
|
||||
default: lua_assert(0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void loadProtos (LoadState *S, Proto *f) {
|
||||
int i;
|
||||
int n = loadInt(S);
|
||||
f->p = luaM_newvectorchecked(S->L, n, Proto *);
|
||||
f->sizep = n;
|
||||
for (i = 0; i < n; i++)
|
||||
f->p[i] = NULL;
|
||||
for (i = 0; i < n; i++) {
|
||||
f->p[i] = luaF_newproto(S->L);
|
||||
luaC_objbarrier(S->L, f, f->p[i]);
|
||||
loadFunction(S, f->p[i], f->source);
|
||||
}
|
||||
}
|
||||
|
||||
#define MYINT(s) (s[0]-'0')
|
||||
#define VERSION MYINT(LUA_VERSION_MAJOR)*16+MYINT(LUA_VERSION_MINOR)
|
||||
#define FORMAT 0 /* this is the official format */
|
||||
|
||||
/*
|
||||
* make header for precompiled chunks
|
||||
* if you change the code below be sure to update LoadHeader and FORMAT above
|
||||
* and LUAC_HEADERSIZE in lundump.h
|
||||
** Load the upvalues for a function. The names must be filled first,
|
||||
** because the filling of the other fields can raise read errors and
|
||||
** the creation of the error message can call an emergency collection;
|
||||
** in that case all prototypes must be consistent for the GC.
|
||||
*/
|
||||
void luaU_header (lu_byte* h)
|
||||
{
|
||||
int x=1;
|
||||
memcpy(h,LUA_SIGNATURE,sizeof(LUA_SIGNATURE)-sizeof(char));
|
||||
h+=sizeof(LUA_SIGNATURE)-sizeof(char);
|
||||
*h++=cast_byte(VERSION);
|
||||
*h++=cast_byte(FORMAT);
|
||||
*h++=cast_byte(*(char*)&x); /* endianness */
|
||||
*h++=cast_byte(sizeof(int));
|
||||
*h++=cast_byte(sizeof(size_t));
|
||||
*h++=cast_byte(sizeof(Instruction));
|
||||
*h++=cast_byte(sizeof(lua_Number));
|
||||
*h++=cast_byte(((lua_Number)0.5)==0); /* is lua_Number integral? */
|
||||
memcpy(h,LUAC_TAIL,sizeof(LUAC_TAIL)-sizeof(char));
|
||||
static void loadUpvalues (LoadState *S, Proto *f) {
|
||||
int i, n;
|
||||
n = loadInt(S);
|
||||
f->upvalues = luaM_newvectorchecked(S->L, n, Upvaldesc);
|
||||
f->sizeupvalues = n;
|
||||
for (i = 0; i < n; i++) /* make array valid for GC */
|
||||
f->upvalues[i].name = NULL;
|
||||
for (i = 0; i < n; i++) { /* following calls can raise errors */
|
||||
f->upvalues[i].instack = loadByte(S);
|
||||
f->upvalues[i].idx = loadByte(S);
|
||||
f->upvalues[i].kind = loadByte(S);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void loadDebug (LoadState *S, Proto *f) {
|
||||
int i, n;
|
||||
n = loadInt(S);
|
||||
f->lineinfo = luaM_newvectorchecked(S->L, n, ls_byte);
|
||||
f->sizelineinfo = n;
|
||||
loadVector(S, f->lineinfo, n);
|
||||
n = loadInt(S);
|
||||
f->abslineinfo = luaM_newvectorchecked(S->L, n, AbsLineInfo);
|
||||
f->sizeabslineinfo = n;
|
||||
for (i = 0; i < n; i++) {
|
||||
f->abslineinfo[i].pc = loadInt(S);
|
||||
f->abslineinfo[i].line = loadInt(S);
|
||||
}
|
||||
n = loadInt(S);
|
||||
f->locvars = luaM_newvectorchecked(S->L, n, LocVar);
|
||||
f->sizelocvars = n;
|
||||
for (i = 0; i < n; i++)
|
||||
f->locvars[i].varname = NULL;
|
||||
for (i = 0; i < n; i++) {
|
||||
f->locvars[i].varname = loadStringN(S, f);
|
||||
f->locvars[i].startpc = loadInt(S);
|
||||
f->locvars[i].endpc = loadInt(S);
|
||||
}
|
||||
n = loadInt(S);
|
||||
for (i = 0; i < n; i++)
|
||||
f->upvalues[i].name = loadStringN(S, f);
|
||||
}
|
||||
|
||||
|
||||
static void loadFunction (LoadState *S, Proto *f, TString *psource) {
|
||||
f->source = loadStringN(S, f);
|
||||
if (f->source == NULL) /* no source in dump? */
|
||||
f->source = psource; /* reuse parent's source */
|
||||
f->linedefined = loadInt(S);
|
||||
f->lastlinedefined = loadInt(S);
|
||||
f->numparams = loadByte(S);
|
||||
f->is_vararg = loadByte(S);
|
||||
f->maxstacksize = loadByte(S);
|
||||
loadCode(S, f);
|
||||
loadConstants(S, f);
|
||||
loadUpvalues(S, f);
|
||||
loadProtos(S, f);
|
||||
loadDebug(S, f);
|
||||
}
|
||||
|
||||
|
||||
static void checkliteral (LoadState *S, const char *s, const char *msg) {
|
||||
char buff[sizeof(LUA_SIGNATURE) + sizeof(LUAC_DATA)]; /* larger than both */
|
||||
size_t len = strlen(s);
|
||||
loadVector(S, buff, len);
|
||||
if (memcmp(s, buff, len) != 0)
|
||||
error(S, msg);
|
||||
}
|
||||
|
||||
|
||||
static void fchecksize (LoadState *S, size_t size, const char *tname) {
|
||||
if (loadByte(S) != size)
|
||||
error(S, luaO_pushfstring(S->L, "%s size mismatch", tname));
|
||||
}
|
||||
|
||||
|
||||
#define checksize(S,t) fchecksize(S,sizeof(t),#t)
|
||||
|
||||
static void checkHeader (LoadState *S) {
|
||||
/* skip 1st char (already read and checked) */
|
||||
checkliteral(S, &LUA_SIGNATURE[1], "not a binary chunk");
|
||||
if (loadByte(S) != LUAC_VERSION)
|
||||
error(S, "version mismatch");
|
||||
if (loadByte(S) != LUAC_FORMAT)
|
||||
error(S, "format mismatch");
|
||||
checkliteral(S, LUAC_DATA, "corrupted chunk");
|
||||
checksize(S, Instruction);
|
||||
checksize(S, lua_Integer);
|
||||
checksize(S, lua_Number);
|
||||
if (loadInteger(S) != LUAC_INT)
|
||||
error(S, "integer format mismatch");
|
||||
if (loadNumber(S) != LUAC_NUM)
|
||||
error(S, "float format mismatch");
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
** Load precompiled chunk.
|
||||
*/
|
||||
LClosure *luaU_undump(lua_State *L, ZIO *Z, const char *name) {
|
||||
LoadState S;
|
||||
LClosure *cl;
|
||||
if (*name == '@' || *name == '=')
|
||||
S.name = name + 1;
|
||||
else if (*name == LUA_SIGNATURE[0])
|
||||
S.name = "binary string";
|
||||
else
|
||||
S.name = name;
|
||||
S.L = L;
|
||||
S.Z = Z;
|
||||
checkHeader(&S);
|
||||
cl = luaF_newLclosure(L, loadByte(&S));
|
||||
setclLvalue2s(L, L->top, cl);
|
||||
luaD_inctop(L);
|
||||
cl->p = luaF_newproto(L);
|
||||
luaC_objbarrier(L, cl, cl->p);
|
||||
loadFunction(&S, cl->p, NULL);
|
||||
lua_assert(cl->nupvalues == cl->p->sizeupvalues);
|
||||
luai_verifycode(L, cl->p);
|
||||
return cl;
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user