1#!/bin/bash
2
3# Copyright 2019 The Go Authors. All rights reserved.
4# Use of this source code is governed by a BSD-style
5# license that can be found in the LICENSE file.
6
7set -e
8shopt -s nullglob
9
10winerror="$(printf '%s\n' "/mnt/c/Program Files (x86)/Windows Kits/"/*/Include/*/shared/winerror.h | sort -Vr | head -n 1)"
11[[ -n $winerror ]] || { echo "Unable to find winerror.h" >&2; exit 1; }
12ntstatus="$(printf '%s\n' "/mnt/c/Program Files (x86)/Windows Kits/"/*/Include/*/shared/ntstatus.h | sort -Vr | head -n 1)"
13[[ -n $ntstatus ]] || { echo "Unable to find ntstatus.h" >&2; exit 1; }
14
15declare -A errors
16
17{
18	echo "// Code generated by 'mkerrors.bash'; DO NOT EDIT."
19	echo
20	echo "package windows"
21	echo "import \"syscall\""
22	echo "const ("
23
24	while read -r line; do
25		unset vtype
26		if [[ $line =~ ^#define\ +([A-Z0-9_]+k?)\ +([A-Z0-9_]+\()?([A-Z][A-Z0-9_]+k?)\)? ]]; then
27			key="${BASH_REMATCH[1]}"
28			value="${BASH_REMATCH[3]}"
29		elif [[ $line =~ ^#define\ +([A-Z0-9_]+k?)\ +([A-Z0-9_]+\()?((0x)?[0-9A-Fa-f]+)L?\)? ]]; then
30			key="${BASH_REMATCH[1]}"
31			value="${BASH_REMATCH[3]}"
32			vtype="${BASH_REMATCH[2]}"
33		elif [[ $line =~ ^#define\ +([A-Z0-9_]+k?)\ +\(\(([A-Z]+)\)((0x)?[0-9A-Fa-f]+)L?\) ]]; then
34			key="${BASH_REMATCH[1]}"
35			value="${BASH_REMATCH[3]}"
36			vtype="${BASH_REMATCH[2]}"
37		else
38			continue
39		fi
40		[[ -n $key && -n $value ]] || continue
41		[[ -z ${errors["$key"]} ]] || continue
42		errors["$key"]="$value"
43		if [[ -v vtype ]]; then
44			if [[ $key == FACILITY_* || $key == NO_ERROR ]]; then
45				vtype=""
46			elif [[ $vtype == *HANDLE* || $vtype == *HRESULT* ]]; then
47				vtype="Handle"
48			else
49				vtype="syscall.Errno"
50			fi
51			last_vtype="$vtype"
52		else
53			vtype=""
54			if [[ $last_vtype == Handle && $value == NO_ERROR ]]; then
55				value="S_OK"
56			elif [[ $last_vtype == syscall.Errno && $value == NO_ERROR ]]; then
57				value="ERROR_SUCCESS"
58			fi
59		fi
60
61		echo "$key $vtype = $value"
62	done < "$winerror"
63
64	while read -r line; do
65		[[ $line =~ ^#define\ (STATUS_[^\s]+)\ +\(\(NTSTATUS\)((0x)?[0-9a-fA-F]+)L?\) ]] || continue
66		echo "${BASH_REMATCH[1]} NTStatus = ${BASH_REMATCH[2]}"
67	done < "$ntstatus"
68
69	echo ")"
70} | gofmt > "zerrors_windows.go"
71