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1#!/bin/bash
2#
3# Create a file named identifiers containing identifiers from internal header
4# files or all header files, based on --internal flag.
5# Outputs the line count of the file to stdout.
6#
7# Usage: list-identifiers.sh [ -i | --internal ]
8#
9# Copyright The Mbed TLS Contributors
10# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
11#
12# This file is provided under the Apache License 2.0, or the
13# GNU General Public License v2.0 or later.
14#
15# **********
16# Apache License 2.0:
17#
18# Licensed under the Apache License, Version 2.0 (the "License"); you may
19# not use this file except in compliance with the License.
20# You may obtain a copy of the License at
21#
22# http://www.apache.org/licenses/LICENSE-2.0
23#
24# Unless required by applicable law or agreed to in writing, software
25# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
26# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
27# See the License for the specific language governing permissions and
28# limitations under the License.
29#
30# **********
31#
32# **********
33# GNU General Public License v2.0 or later:
34#
35# This program is free software; you can redistribute it and/or modify
36# it under the terms of the GNU General Public License as published by
37# the Free Software Foundation; either version 2 of the License, or
38# (at your option) any later version.
39#
40# This program is distributed in the hope that it will be useful,
41# but WITHOUT ANY WARRANTY; without even the implied warranty of
42# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
43# GNU General Public License for more details.
44#
45# You should have received a copy of the GNU General Public License along
46# with this program; if not, write to the Free Software Foundation, Inc.,
47# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
48#
49# **********
50
51set -eu
52
53if [ -d include/mbedtls ]; then :; else
54    echo "$0: must be run from root" >&2
55    exit 1
56fi
57
58INTERNAL=""
59
60until [ -z "${1-}" ]
61do
62  case "$1" in
63    -i|--internal)
64      INTERNAL="1"
65      ;;
66    *)
67      # print error
68      echo "Unknown argument: '$1'"
69      exit 1
70      ;;
71  esac
72  shift
73done
74
75if [ $INTERNAL ]
76then
77    HEADERS=$( ls include/mbedtls/*_internal.h | egrep -v 'compat-1\.3\.h|bn_mul' )
78else
79    HEADERS=$( ls include/mbedtls/*.h | egrep -v 'compat-1\.3\.h|bn_mul' )
80fi
81
82rm -f identifiers
83
84grep '^[^ /#{]' $HEADERS | \
85    sed -e 's/^[^:]*://' | \
86    egrep -v '^(extern "C"|(typedef )?(struct|enum)( {)?$|};?$)' \
87    > _decls
88
89if true; then
90sed -n -e 's/.* \**\([a-zA-Z_][a-zA-Z0-9_]*\)(.*/\1/p' \
91       -e 's/.*(\*\(.*\))(.*/\1/p' _decls
92grep -v '(' _decls | sed -e 's/\([a-zA-Z0-9_]*\)[;[].*/\1/' -e 's/.* \**//'
93fi > _identifiers
94
95if [ $( wc -l < _identifiers ) -eq $( wc -l < _decls ) ]; then
96    rm _decls
97    egrep -v '^(u?int(16|32|64)_t)$' _identifiers | sort > identifiers
98    rm _identifiers
99else
100    echo "$0: oops, lost some identifiers" 2>&1
101    exit 1
102fi
103
104wc -l identifiers
105