diff options
Diffstat (limited to 'plugins/SmartAutoReplier/lualib/lundump.c')
-rw-r--r-- | plugins/SmartAutoReplier/lualib/lundump.c | 286 |
1 files changed, 0 insertions, 286 deletions
diff --git a/plugins/SmartAutoReplier/lualib/lundump.c b/plugins/SmartAutoReplier/lualib/lundump.c deleted file mode 100644 index 151a8507cc..0000000000 --- a/plugins/SmartAutoReplier/lualib/lundump.c +++ /dev/null @@ -1,286 +0,0 @@ -/* -** $Id: lundump.c,v 1.49 2003/04/07 20:34:20 lhf Exp $ -** load pre-compiled Lua chunks -** See Copyright Notice in lua.h -*/ - -#define lundump_c - -#include "lua.h" - -#include "ldebug.h" -#include "lfunc.h" -#include "lmem.h" -#include "lopcodes.h" -#include "lstring.h" -#include "lundump.h" -#include "lzio.h" - -#define LoadByte (lu_byte) ezgetc - -typedef struct { - lua_State* L; - ZIO* Z; - Mbuffer* b; - int swap; - const char* name; -} LoadState; - -static void unexpectedEOZ (LoadState* S) -{ - luaG_runerror(S->L,"unexpected end of file in %s",S->name); -} - -static int ezgetc (LoadState* S) -{ - int c=zgetc(S->Z); - if (c==EOZ) unexpectedEOZ(S); - return c; -} - -static void ezread (LoadState* S, void* b, int n) -{ - int r=luaZ_read(S->Z,b,n); - if (r!=0) unexpectedEOZ(S); -} - -static void LoadBlock (LoadState* S, void* b, size_t size) -{ - if (S->swap) - { - char* p=(char*) b+size-1; - int n=size; - while (n--) *p--=(char)ezgetc(S); - } - else - ezread(S,b,size); -} - -static void LoadVector (LoadState* S, void* b, int m, size_t size) -{ - if (S->swap) - { - char* q=(char*) b; - while (m--) - { - char* p=q+size-1; - int n=size; - while (n--) *p--=(char)ezgetc(S); - q+=size; - } - } - else - ezread(S,b,m*size); -} - -static int LoadInt (LoadState* S) -{ - int x; - LoadBlock(S,&x,sizeof(x)); - if (x<0) luaG_runerror(S->L,"bad integer in %s",S->name); - return x; -} - -static size_t LoadSize (LoadState* S) -{ - size_t x; - LoadBlock(S,&x,sizeof(x)); - return x; -} - -static lua_Number LoadNumber (LoadState* S) -{ - lua_Number x; - LoadBlock(S,&x,sizeof(x)); - return x; -} - -static TString* LoadString (LoadState* S) -{ - size_t size=LoadSize(S); - if (size==0) - return NULL; - else - { - char* s=luaZ_openspace(S->L,S->b,size); - ezread(S,s,size); - return luaS_newlstr(S->L,s,size-1); /* remove trailing '\0' */ - } -} - -static void LoadCode (LoadState* S, Proto* f) -{ - int size=LoadInt(S); - f->code=luaM_newvector(S->L,size,Instruction); - f->sizecode=size; - LoadVector(S,f->code,size,sizeof(*f->code)); -} - -static void LoadLocals (LoadState* S, Proto* f) -{ - int i,n; - n=LoadInt(S); - f->locvars=luaM_newvector(S->L,n,LocVar); - f->sizelocvars=n; - for (i=0; i<n; i++) - { - f->locvars[i].varname=LoadString(S); - f->locvars[i].startpc=LoadInt(S); - f->locvars[i].endpc=LoadInt(S); - } -} - -static void LoadLines (LoadState* S, Proto* f) -{ - int size=LoadInt(S); - f->lineinfo=luaM_newvector(S->L,size,int); - f->sizelineinfo=size; - LoadVector(S,f->lineinfo,size,sizeof(*f->lineinfo)); -} - -static void LoadUpvalues (LoadState* S, Proto* f) -{ - int i,n; - n=LoadInt(S); - if (n!=0 && n!=f->nups) - luaG_runerror(S->L,"bad nupvalues in %s: read %d; expected %d", - S->name,n,f->nups); - f->upvalues=luaM_newvector(S->L,n,TString*); - f->sizeupvalues=n; - for (i=0; i<n; i++) f->upvalues[i]=LoadString(S); -} - -static Proto* LoadFunction (LoadState* S, TString* p); - -static void LoadConstants (LoadState* S, Proto* f) -{ - int i,n; - n=LoadInt(S); - f->k=luaM_newvector(S->L,n,TObject); - f->sizek=n; - for (i=0; i<n; i++) - { - TObject* o=&f->k[i]; - int t=LoadByte(S); - switch (t) - { - case LUA_TNUMBER: - setnvalue(o,LoadNumber(S)); - break; - case LUA_TSTRING: - setsvalue2n(o,LoadString(S)); - break; - case LUA_TNIL: - setnilvalue(o); - break; - default: - luaG_runerror(S->L,"bad constant type (%d) in %s",t,S->name); - break; - } - } - n=LoadInt(S); - f->p=luaM_newvector(S->L,n,Proto*); - f->sizep=n; - for (i=0; i<n; i++) f->p[i]=LoadFunction(S,f->source); -} - -static Proto* LoadFunction (LoadState* S, TString* p) -{ - Proto* f=luaF_newproto(S->L); - f->source=LoadString(S); if (f->source==NULL) f->source=p; - f->lineDefined=LoadInt(S); - f->nups=LoadByte(S); - f->numparams=LoadByte(S); - f->is_vararg=LoadByte(S); - f->maxstacksize=LoadByte(S); - LoadLines(S,f); - LoadLocals(S,f); - LoadUpvalues(S,f); - LoadConstants(S,f); - LoadCode(S,f); -#ifndef TRUST_BINARIES - if (!luaG_checkcode(f)) luaG_runerror(S->L,"bad code in %s",S->name); -#endif - return f; -} - -static void LoadSignature (LoadState* S) -{ - const char* s=LUA_SIGNATURE; - while (*s!=0 && ezgetc(S)==*s) - ++s; - if (*s!=0) luaG_runerror(S->L,"bad signature in %s",S->name); -} - -static void TestSize (LoadState* S, int s, const char* what) -{ - int r=LoadByte(S); - if (r!=s) - luaG_runerror(S->L,"virtual machine mismatch in %s: " - "size of %s is %d but read %d",S->name,what,s,r); -} - -#define TESTSIZE(s,w) TestSize(S,s,w) -#define V(v) v/16,v%16 - -static void LoadHeader (LoadState* S) -{ - int version; - lua_Number x,tx=TEST_NUMBER; - LoadSignature(S); - version=LoadByte(S); - if (version>VERSION) - luaG_runerror(S->L,"%s too new: " - "read version %d.%d; expected at most %d.%d", - S->name,V(version),V(VERSION)); - if (version<VERSION0) /* check last major change */ - luaG_runerror(S->L,"%s too old: " - "read version %d.%d; expected at least %d.%d", - S->name,V(version),V(VERSION0)); - S->swap=(luaU_endianness()!=LoadByte(S)); /* need to swap bytes? */ - TESTSIZE(sizeof(int),"int"); - TESTSIZE(sizeof(size_t), "size_t"); - TESTSIZE(sizeof(Instruction), "Instruction"); - TESTSIZE(SIZE_OP, "OP"); - TESTSIZE(SIZE_A, "A"); - TESTSIZE(SIZE_B, "B"); - TESTSIZE(SIZE_C, "C"); - TESTSIZE(sizeof(lua_Number), "number"); - x=LoadNumber(S); - if ((long)x!=(long)tx) /* disregard errors in last bits of fraction */ - luaG_runerror(S->L,"unknown number format in %s",S->name); -} - -static Proto* LoadChunk (LoadState* S) -{ - LoadHeader(S); - return LoadFunction(S,NULL); -} - -/* -** load precompiled chunk -*/ -Proto* luaU_undump (lua_State* L, ZIO* Z, Mbuffer* buff) -{ - LoadState S; - const char* s=zname(Z); - if (*s=='@' || *s=='=') - S.name=s+1; - else if (*s==LUA_SIGNATURE[0]) - S.name="binary string"; - else - S.name=s; - S.L=L; - S.Z=Z; - S.b=buff; - return LoadChunk(&S); -} - -/* -** find byte order -*/ -int luaU_endianness (void) -{ - int x=1; - return *(char*)&x; -} |