Korinne Adler kadler

Basic sudo implementation on IBM i

Uses standard Unix setuid to change the current process user id and executes the parameters passed. On other platforms, this usually requires root authority, but on IBM i we just need *USE authority to the user profile. :)

Build

gcc -o sudo sudo.c

gcc -std=c99 -o pase-signal-msgid pase-signal-msgid.c && ./pase-signal-msgid

Example output:

ptr: ffffffffffffba1
----- in handler -----
msgid = MCH0602

If PHP tests fail with

[IBM][CLI Driver][AS] SQL0805N  Package "NULLID.SYSSH000" was not found.  SQLSTATE=51002 SQLCODE=-805

You'll need to set up the DB2 Connect SQL packages by "binding" them.

From the clidriver directory

Building ibm_db2 on IBM i

Setup

We need to install various packages in order to build ibm_db2. Most of these can be installed with yum:

yum group install 'Development tools'
yum install git

README

🚨 This gist is obsolete 🚨

This was a way to easily set up a few certificates for GitHub, BitBucket, etc for use with git. It's largely irrelevant nowadays with the advent of ca-certificates being availabe.

Instead, just yum install ca-certificates-mozilla. This installs the Mozilla CA trust store (the same used by Firefox and many other open source projects), as well as the ca-certificates infrastructure. ca-certificates will generate the format needed by OpenSSL (and Java, too!).

For some reason I'm getting CPF3C1D when calling the API and I don't know why.

The API is defined here and the structure is defined here.

The last field of the structure is at offset 570 and is 512 bytes, which means the whole structure is 1082, which is what we're passing. It says that we need to pass 1 more byte, but I have no idea why or what it should be.

Also: the lib option to iSrvPgm does not work...

Update: I added a 2 byte dummy field to make it greater than 1083 bytes long and now get: "A value in the instance data at decimal offset 28 is not valid"

	#!/QOpenSys/pkgs/bin/bash

	MBRPATH=/qsys.lib/qsysinc.lib/h.file/stdio.mbr
	RCDLEN=80 # default, use whatever was specified on CRTSRCPF
	CCSID=037 # needs leading zeros if less than 3 digits

	OUTFILE=stdio.h

	# What it does:
	# 1. Convert the member "stream of bytes" to UTF-8

	from ctypes import c_char, c_int, c_uint, c_int16, c_uint16, \
	c_size_t, c_ulonglong, c_void_p, c_char_p, \
	addressof, sizeof, create_string_buffer, \
	CDLL, DEFAULT_MODE, POINTER, Structure

	import unicodedata

	RTLD_MEMBER = 0x00040000

	#
	# The MIT License (MIT)
	#
	# Copyright (c) 2017 IBM Corp.
	#
	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and associated documentation files (the "Software"), to deal
	# in the Software without restriction, including without limitation the rights
	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	# copies of the Software, and to permit persons to whom the Software is