From 8aa2adf99fd4fcc4b47c534d2fed5ec7ed6ea334 Mon Sep 17 00:00:00 2001
From: Amlal <amlal.elmahrouss@icloud.com>
Date: Mon, 27 Jan 2025 21:49:14 +0100
Subject: ADD: LibDebugger C++ library and improved `dbg` tool. ADD: New manual
 files `dbg` and `ld64`

Signed-off-by: Amlal <amlal.elmahrouss@icloud.com>
---
 dev/LibDebugger/Debugger.h | 102 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 dev/LibDebugger/Debugger.h

(limited to 'dev/LibDebugger/Debugger.h')

diff --git a/dev/LibDebugger/Debugger.h b/dev/LibDebugger/Debugger.h
new file mode 100644
index 0000000..af3217c
--- /dev/null
+++ b/dev/LibDebugger/Debugger.h
@@ -0,0 +1,102 @@
+/***
+	(C) 2025 Amlal El Mahrouss
+ */
+
+#include <iostream>
+#include <unordered_map>
+
+#include <sys/ptrace.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/user.h>
+#include <unistd.h>
+#include <stdint.h>
+
+namespace LibDebugger
+{
+	/// \brief Debug IDebugger class in C++
+	/// \author Amlal El Mahrouss
+	class IDebugger final
+	{
+	public:
+		IDebugger()	 = default;
+		~IDebugger() = default;
+
+		IDebugger& operator=(const IDebugger&) = default;
+		IDebugger(const IDebugger&)			   = default;
+
+	public:
+		void Attach(pid_t pid)
+		{
+			this->m_pid = pid;
+
+			if (ptrace(PTRACE_ATTACH, this->m_pid, nullptr, nullptr) == -1)
+			{
+				perror("dbg: Attach");
+				exit(1);
+			}
+
+			waitpid(m_pid, nullptr, 0);
+
+			std::cout << "[+] Attached to process: " << m_pid << std::endl;
+		}
+
+		void SetBreakpoint(void* addr)
+		{
+			long original_data = ptrace(PTRACE_PEEKTEXT, m_pid, addr, nullptr);
+			if (original_data == -1)
+			{
+				perror("dbg: Peek");
+				exit(1);
+			}
+
+			long data_with_int3 = (original_data & ~0xFF) | 0xCC; // Insert INT3 (0xCC)
+			if (ptrace(PTRACE_POKETEXT, m_pid, addr, data_with_int3) == -1)
+			{
+				perror("dbg: Poke");
+				exit(1);
+			}
+
+			std::cout << "[+] Breakpoint set at: " << addr << std::endl;
+
+			m_breakpoints[reinterpret_cast<uintptr_t>(addr)] = original_data; // Store original data
+		}
+
+		void ContinueExecution()
+		{
+			if (ptrace(PTRACE_CONT, m_pid, nullptr, nullptr) == -1)
+			{
+				perror("dbg: Cont");
+				exit(1);
+			}
+
+			int status;
+			waitpid(m_pid, &status, 0);
+
+			if (WIFSTOPPED(status) && WSTOPSIG(status) == SIGTRAP)
+			{
+				std::cout << "[!] Breakpoint hit." << std::endl;
+			}
+		}
+
+		void Detach()
+		{
+			if (ptrace(PTRACE_DETACH, m_pid, nullptr, nullptr) == -1)
+			{
+				perror("dbg: Detach");
+				exit(1);
+			}
+
+			std::cout << "[-] Detached from process: " << m_pid << std::endl;
+		}
+
+		std::unordered_map<uintptr_t, long>& Breakpoints()
+		{
+			return m_breakpoints;
+		}
+
+	private:
+		pid_t								m_pid;
+		std::unordered_map<uintptr_t, long> m_breakpoints;
+	};
+} // namespace LibDebugger
-- 
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