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hariel1985 02a08d23cc Harden unsafe pointer code against malicious process names

Defensive coding improvements to mitigate "kernel as messenger" attack vector
where a local malicious process could craft extreme process names/paths:

- fetchProcessName: Create string from explicit length instead of relying
  on null terminator. Protects against edge cases where path buffer might
  not be null-terminated at exactly maxPathSize.

- BSD name extraction: Copy to safe buffer with guaranteed null termination
  before converting to String. Protects against pbi_name being exactly
  MAXCOMLEN bytes without null terminator.

- fetchBasicProcessInfo: Same safe pattern for p_comm field extraction.

- Strip control characters and whitespace from process names to prevent
  display/injection issues from maliciously crafted names.

Security: Addresses potential buffer over-read in unsafe Swift pointer
operations when parsing attacker-influenced kernel data structures.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-01-31 23:20:51 +01:00

Screenshots

Update processes screenshot with CPU/Core and CPU/Total columns

2026-01-31 16:40:04 +01:00

TopManager

Harden unsafe pointer code against malicious process names

2026-01-31 23:20:51 +01:00

TopManager.xcodeproj

Initial commit: TopManager macOS system monitor

2026-01-30 23:56:51 +01:00

.gitignore

Initial commit: TopManager macOS system monitor

2026-01-30 23:56:51 +01:00

LICENSE

Initial commit: TopManager macOS system monitor

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project.yml

Initial commit: TopManager macOS system monitor

2026-01-30 23:56:51 +01:00

README.md

Add screenshots to README

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README.md

TopManager

A native macOS system monitor application built with SwiftUI. TopManager provides real-time monitoring of system resources including processes, applications, CPU, memory, GPU, storage, and network.

Screenshots

Processes

Apps

Performance - CPU

Performance - Memory

Performance - Network

Power & Storage

Features

Processes Tab

View all running processes with CPU, memory, and thread information
Sort by any column (name, PID, CPU%, memory, threads, user, state)
Process states: Running, Sleeping, Stopped, Zombie
Context menu to terminate, force kill, suspend, or resume processes
Search processes by name or PID

Apps Tab

View running user-facing applications
Shows app icons, CPU/memory usage, and bundle identifiers
Quick actions: Activate, Hide, Quit, Force Quit
Copy bundle ID to clipboard

Performance Tab

Real-time CPU usage graphs (global and per-core)
Memory usage visualization with donut chart
Network throughput monitoring
Support for Apple Silicon P-cores and E-cores

Power & Storage Tab

System status: macOS version, uptime, thermal state
CPU and GPU core counts
GPU memory/VRAM usage
Storage volumes with usage bars
Network interface statistics

Requirements

macOS 13.0 or later
Xcode 15.0 or later (for building)

Building

Clone the repository:

git clone https://github.com/hariel1985/TopManager.git

Open TopManager.xcodeproj in Xcode
Build and run (⌘R)

License

This project is licensed under the GNU General Public License v3.0 - see the LICENSE file for details.

Acknowledgments

Built with SwiftUI and native macOS APIs including:

libproc for process information
IOKit for GPU and hardware monitoring
Metal for GPU detection
SystemConfiguration for network monitoring