From 4343d8af53995996503d63bb4c03aee436c0fdb4 Mon Sep 17 00:00:00 2001
From: birk <adam.krogsoe1@gmail.com>
Date: Sun, 8 Jun 2025 06:45:46 +0200
Subject: [PATCH] ldump.c added

---
 ldump.c | 211 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 211 insertions(+)
 create mode 100644 ldump.c

diff --git a/ldump.c b/ldump.c
new file mode 100644
index 0000000..f405385
--- /dev/null
+++ b/ldump.c
@@ -0,0 +1,211 @@
+/*
+** $Id: ldump.c,v 2.8.1.1 2007/12/27 13:02:25 roberto Exp $
+** save precompiled Lua chunks
+** See Copyright Notice in lua.h
+*/
+
+
+void print_data(const char* arr, size_t length)
+{
+	for (int i = 0; i < length; i++)
+    {
+		printf("%02X ", (unsigned char)arr[i]);
+	}
+	printf("\n");
+}
+
+
+
+#include <stddef.h>
+
+#define ldump_c
+#define LUA_CORE
+
+#include "lua.h"
+
+#include "lobject.h"
+#include "lstate.h"
+#include "lundump.h"
+
+typedef struct {
+ lua_State* L;
+ lua_Writer writer;
+ void* data;
+ int strip;
+ int status;
+} DumpState;
+
+#define DumpMem(b,n,size,D)     DumpBlock(b,(n)*(size),D)
+#define DumpVar(x,D)            DumpMem(&x,1,sizeof(x),D)
+
+static void DumpBlock(const void* b, size_t size, DumpState* D)
+{
+ if (D->status==0)
+ {
+    print_data(b, size)
+  lua_unlock(D->L);
+  D->status=(*D->writer)(D->L,b,size,D->data);
+  lua_lock(D->L);
+ }
+}
+
+static void DumpChar(int y, DumpState* D)
+{
+ char x=(char)y;
+ DumpVar(x,D);
+}
+
+static void DumpInt(int x, DumpState* D)
+{
+ DumpVar(x,D);
+}
+
+static void DumpNumber(lua_Number x, DumpState* D)
+{
+ DumpVar(x,D);
+}
+
+static void DumpVector(const void* b, int n, size_t size, DumpState* D)
+{
+ DumpInt(n,D);
+ DumpMem(b,n,size,D);
+}
+
+static void DumpString(const TString* s, DumpState* D)
+{
+ if (s==NULL || getstr(s)==NULL)
+ {
+	 printf("NULL\n");
+  size_t size=0;
+  DumpVar(size,D);
+ }
+ else
+ {
+  size_t size=s->tsv.len+1;             /* include trailing '\0' */
+  printf("size: ");
+  DumpVar(size,D);
+  printf("string: ");
+  DumpBlock(getstr(s),size,D);
+ }
+}
+
+#define DumpCode(f,D)    DumpVector(f->code,f->sizecode,sizeof(Instruction),D)
+
+static void DumpFunction(const Proto* f, const TString* p, DumpState* D);
+
+static void DumpConstants(const Proto* f, DumpState* D)
+{
+ int i,n=f->sizek;
+ printf("sizek: ");
+ DumpInt(n,D);
+ for (i=0; i<n; i++)
+ {
+  const TValue* o=&f->k[i];
+  printf("constant type: ");
+  DumpChar(ttype(o),D);
+  switch (ttype(o))
+  {
+   case LUA_TNIL:
+	   printf("LUA_TNIL: \n"); 
+        break;
+   case LUA_TBOOLEAN:
+	   printf("LUA_TBOOLEAN: "); 
+        DumpChar(bvalue(o),D);
+        break;
+   case LUA_TNUMBER:
+	   printf("LUA_TNUMBER: ");
+        DumpNumber(nvalue(o),D);
+        break;
+   case LUA_TSTRING:
+	   printf("LUA_TSTRING: ");
+        DumpString(rawtsvalue(o),D);
+        break;
+   default:
+        lua_assert(0);                  /* cannot happen */
+        break;
+  }
+ }
+ n=f->sizep;
+ printf("sizep: ");
+ DumpInt(n,D);
+ for (i=0; i<n; i++)
+ {
+    printf("=-=-=-=-=-=-=-=-=-=-=-=-=New function: %d of %d=-=-=-=-=-=-=-=-=-=-=-=-=\n", i, n);
+    DumpFunction(f->p[i],f->source,D);
+    print(0, "=-=-=-=-=-=-=-=-=-=-=-=-=End: %d=-=-=-=-=-=-=-=-=-=-=-=-=\n", i);
+ }
+}
+
+static void DumpDebug(const Proto* f, DumpState* D)
+{
+ int i,n;
+ n= (D->strip) ? 0 : f->sizelineinfo;
+ DumpVector(f->lineinfo,n,sizeof(int),D);
+ n= (D->strip) ? 0 : f->sizelocvars;
+ DumpInt(n,D);
+ for (i=0; i<n; i++)
+ {
+  DumpString(f->locvars[i].varname,D);
+  DumpInt(f->locvars[i].startpc,D);
+  DumpInt(f->locvars[i].endpc,D);
+ }
+ n= (D->strip) ? 0 : f->sizeupvalues;
+ DumpInt(n,D);
+ for (i=0; i<n; i++) DumpString(f->upvalues[i],D);
+}
+
+static void DumpFunction(const Proto* f, const TString* p, DumpState* D)
+{
+	printf("source: \n");
+ DumpString((f->source==p || D->strip) ? NULL : f->source,D);
+	printf("linedefined: ");
+ DumpInt(f->linedefined,D);
+	printf("lastlinedefined: ");
+ DumpInt(f->lastlinedefined,D);
+	printf("nups: ");
+ DumpChar(f->nups,D);
+	printf("numparams: ");
+ DumpChar(f->numparams,D);
+	printf("is_vararg: ");
+ DumpChar(f->is_vararg,D);
+	printf("maxstacksize: ");
+ DumpChar(f->maxstacksize,D);
+  printf("=-=-=-=-=-=-=-=-=-=-=-=-=Dumping CODE=-=-=-=-=-=-=-=-=-=-=-=-=\n");
+
+	printf("sizecode: ");
+ DumpCode(f,D);
+
+// DUMP INS HERE
+  printf("=-=-=-=-=-=-=-=-=-=-=-=-=Dumping CONSTANTS=-=-=-=-=-=-=-=-=-=-=-=-=\n");
+
+ DumpConstants(f,D);
+  printf("=-=-=-=-=-=-=-=-=-=-=-=-=Dumping DEBUG=-=-=-=-=-=-=-=-=-=-=-=-=\n");
+ DumpDebug(f,D);
+}
+
+static void DumpHeader(DumpState* D)
+{
+ char h[LUAC_HEADERSIZE];
+ luaU_header(h);
+ printf("header: ");
+ DumpBlock(h,LUAC_HEADERSIZE,D);
+}
+
+/*
+** dump Lua function as precompiled chunk
+*/
+int luaU_dump (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip)
+{
+ DumpState D;
+ D.L=L;
+ D.writer=w;
+ D.data=data;
+ D.strip=strip;
+ D.status=0;
+  print(0, "=-=-=-=-=-=-=-=-=-=-=-=-=Dumping HEADER=-=-=-=-=-=-=-=-=-=-=-=-=\n");
+ DumpHeader(&D);
+  print(0, "=-=-=-=-=-=-=-=-=-=-=-=-=Dumping MAIN_CODE=-=-=-=-=-=-=-=-=-=-=-=-=\n");
+ DumpFunction(f,NULL,&D);
+  print(0, "=-=-=-=-=-=-=-=-=-=-=-=-=End: MAIN_CODE=-=-=-=-=-=-=-=-=-=-=-=-=\n");
+ return D.status;
+}
\ No newline at end of file