From 1207eb6fc8fafb389c16e96cf7ba1ad9b9b9bc43 Mon Sep 17 00:00:00 2001
From: ttttupup <hotooo2222@gmail.com>
Date: Fri, 22 Dec 2023 23:23:50 +0800
Subject: [PATCH] =?UTF-8?q?feat:=E5=86=85=E5=AD=98=E6=89=AB=E6=8F=8F?=
MIME-Version: 1.0
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---
 app/base/src/include/memory.h | 11 ++++++
 app/base/src/memory.cc        | 64 +++++++++++++++++++++++++++++++++++
 2 files changed, 75 insertions(+)
 create mode 100644 app/base/src/include/memory.h
 create mode 100644 app/base/src/memory.cc

diff --git a/app/base/src/include/memory.h b/app/base/src/include/memory.h
new file mode 100644
index 0000000..24a0e1e
--- /dev/null
+++ b/app/base/src/include/memory.h
@@ -0,0 +1,11 @@
+#ifndef BASE_MEMORY_H_
+#define BASE_MEMORY_H_
+#include <windows.h>
+#include <vector>
+namespace base {
+namespace memory {
+    std::vector<INT64> ScanAndMatchValue(INT64 value, INT64 start,int align);
+    int sunday(const byte* total, int tlen, const byte* part, int plen);
+}
+}  // namespace base
+#endif
\ No newline at end of file
diff --git a/app/base/src/memory.cc b/app/base/src/memory.cc
new file mode 100644
index 0000000..a5e6cc7
--- /dev/null
+++ b/app/base/src/memory.cc
@@ -0,0 +1,64 @@
+#include "include/memory.h"
+
+namespace base {
+namespace memory {
+std::vector<INT64> ScanAndMatchValue(INT64 value, INT64 start, int align) {
+  SYSTEM_INFO sys_info;
+  GetSystemInfo(&sys_info);
+  std::vector<INT64> result;
+  INT64 min_addr =
+      reinterpret_cast<INT64>(sys_info.lpMinimumApplicationAddress);
+  INT64 max_addr =
+      reinterpret_cast<INT64>(sys_info.lpMaximumApplicationAddress);
+  const INT64 page_size = sys_info.dwPageSize;
+  min_addr = min_addr > start ? min_addr : start;
+
+  auto current_addr = min_addr;
+  MEMORY_BASIC_INFORMATION mem_info = {};
+  HANDLE handle = GetCurrentProcess();
+  while (current_addr < max_addr) {
+    VirtualQueryEx(handle, reinterpret_cast<LPVOID>(current_addr), &mem_info,
+                   sizeof(MEMORY_BASIC_INFORMATION));
+
+    if ((INT64)mem_info.RegionSize <= 0) {
+      break;
+    }
+    INT64 region_size = mem_info.RegionSize;
+    if ((mem_info.State & MEM_COMMIT) == MEM_COMMIT &&
+        (mem_info.Protect & PAGE_GUARD) != PAGE_GUARD &&
+        (mem_info.Protect & PAGE_NOACCESS) != PAGE_NOACCESS) {
+      for (INT64 i = 0; i < region_size; i += align) {
+        if (value == *(INT64 *)current_addr) {
+          result.push_back(current_addr);
+        }
+        current_addr += align;
+      }
+    } else {
+      current_addr += region_size;
+    }
+  }
+  return result;
+}
+
+int sunday(const byte* total, int tlen, const byte* part, int plen) {
+  byte move[128] = {0};
+  for (int i = 0; i < plen; i++) {
+    move[part[i]] = plen - i;
+  }
+  int s = 0;
+  int j;
+  while (s <= tlen - plen) {
+    j = 0;
+    while (total[s + j] == part[j]) {
+      j++;
+      if (j == plen) {
+        return s;
+      }
+    }
+    s += move[total[s + plen]];
+  }
+  return -1;
+}
+
+}  // namespace memory
+}  // namespace base
\ No newline at end of file