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README.md		README.md
main.go		main.go
main_darwin.go		main_darwin.go
main_linux.go		main_linux.go
main_others.go		main_others.go
main_windows.go		main_windows.go

README.md

Ports Utility

A cross-platform utility to list open ports and their associated processes.

Usage

ports [options]

Options:

-tcp: Show TCP ports (default: true)
-udp: Show UDP ports (default: true)
-listen: Show only listening ports (default: false)
-pid: Show PID and process information (default: true)

Platform Support

Windows: Uses native iphlpapi.dll (GetExtendedTcpTable/GetExtendedUdpTable)
Linux: Parses /proc/net/tcp, /proc/net/udp and maps to PIDs via /proc/[pid]/fd
macOS: Uses native proc_info syscall (SYS_PROC_INFO)