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SUDO for DOS
  • Assembly 95.3%
  • Makefile 4.7%
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2026年03月17日 20:18:35 +01:00
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SUDO for DOS

SUDO command ...

An implementation of sudo for DOS, to run the given command with full privileges.

Examples

Editing important system files:

C:\>sudo edit config.sys

Disk partitioning:

C:\>sudo fdisk

How it works

SUDO examines the environment for the COMSPEC variable to find the default command interpreter, falling back to C:\COMMAND.COM if not set. The interpreter is then executed in unprotected real mode for full privileges.

If a file SUDOERS.SYS is present in the root directory of the boot drive, it is ignored.

Building

Requires NASM:

nasm -f bin -o sudo.com sudo.asm

There is also a Makefile and a Visual Studio 6 project (in vs6/).

Running SUDO directly from the command line will only work on DOS or 32-bit Windows. On modern 64-bit Windows, or other operating systems, you'll need to use something like DOSBox for testing.

Author

By Sijmen J. Mulder (ik@sjmulder.nl). Licensed under the 2-clause BSD license.