mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2025-08-21 05:43:48 -07:00
Bump LUA version from 5.2 to 5.4
This commit is contained in:
Jean-Michel Picod
parent
9f3e94c668
commit
0fcc3107b0
59 changed files with 24455 additions and 15310 deletions
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@ -1,14 +1,18 @@
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/*
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** $Id: lundump.c,v 2.22 2012/05/08 13:53:33 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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@ -20,221 +24,312 @@
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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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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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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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char x;
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LoadVar(S, x);
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return x;
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}
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static int LoadInt(LoadState *S) {
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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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}
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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 TString *LoadString(LoadState *S) {
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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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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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}
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static void LoadCode(LoadState *S, Proto *f) {
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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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}
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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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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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TValue *o = &f->k[i];
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int t = LoadChar(S);
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switch (t) {
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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:
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lua_assert(0);
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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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f->p[i] = luaF_newproto(S->L);
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LoadFunction(S, f->p[i]);
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}
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}
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static void LoadUpvalues(LoadState *S, Proto *f) {
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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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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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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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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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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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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");
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else error(S, "corrupted");
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}
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/*
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** load precompiled chunk
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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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Closure *luaU_undump(lua_State *L, ZIO *Z, Mbuffer *buff, const char *name) {
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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);
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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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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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#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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#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 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 size_t loadSize (LoadState *S) {
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return loadUnsigned(S, MAX_SIZET);
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}
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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 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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#define MYINT(s) (s[0]-'0')
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#define VERSION MYINT(LUA_VERSION_MAJOR)*16+MYINT(LUA_VERSION_MINOR)
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#define FORMAT 0 /* this is the official format */
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/*
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* make header for precompiled chunks
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* if you change the code below be sure to update LoadHeader and FORMAT above
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* and LUAC_HEADERSIZE in lundump.h
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** Load a nullable string into prototype 'p'.
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*/
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void luaU_header(lu_byte *h) {
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int x = 1;
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memcpy(h, LUA_SIGNATURE, sizeof(LUA_SIGNATURE) - sizeof(char));
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h += sizeof(LUA_SIGNATURE) - sizeof(char);
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*h++ = cast_byte(VERSION);
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*h++ = cast_byte(FORMAT);
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*h++ = cast_byte(*(char *)&x); /* endianness */
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*h++ = cast_byte(sizeof(int));
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*h++ = cast_byte(sizeof(size_t));
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*h++ = cast_byte(sizeof(Instruction));
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*h++ = cast_byte(sizeof(lua_Number));
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*h++ = cast_byte(((lua_Number)0.5) == 0); /* is lua_Number integral? */
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memcpy(h, LUAC_TAIL, sizeof(LUAC_TAIL) - sizeof(char));
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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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else { /* long string */
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ts = luaS_createlngstrobj(L, size); /* create string */
|
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setsvalue2s(L, L->top.p, ts); /* anchor it ('loadVector' can GC) */
|
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luaD_inctop(L);
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loadVector(S, getlngstr(ts), size); /* load directly in final place */
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L->top.p--; /* 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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/*
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** Load a non-nullable string into prototype 'p'.
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*/
|
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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;
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}
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|
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|
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static void loadCode (LoadState *S, Proto *f) {
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int n = loadInt(S);
|
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f->code = luaM_newvectorchecked(S->L, n, Instruction);
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f->sizecode = n;
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loadVector(S, f->code, n);
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}
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||||
|
||||
|
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static void loadFunction(LoadState *S, Proto *f, TString *psource);
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|
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|
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static void loadConstants (LoadState *S, Proto *f) {
|
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int i;
|
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int n = loadInt(S);
|
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f->k = luaM_newvectorchecked(S->L, n, TValue);
|
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f->sizek = n;
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||||
for (i = 0; i < n; i++)
|
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setnilvalue(&f->k[i]);
|
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for (i = 0; i < n; i++) {
|
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TValue *o = &f->k[i];
|
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int t = loadByte(S);
|
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switch (t) {
|
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case LUA_VNIL:
|
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setnilvalue(o);
|
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break;
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case LUA_VFALSE:
|
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setbfvalue(o);
|
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break;
|
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case LUA_VTRUE:
|
||||
setbtvalue(o);
|
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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);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
** 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.
|
||||
*/
|
||||
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);
|
||||
if (n != 0) /* does it have debug information? */
|
||||
n = f->sizeupvalues; /* must be this many */
|
||||
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.p, 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;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue