146 lines
2.8 KiB
Bash
146 lines
2.8 KiB
Bash
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#!/bin/bash
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## This script is potentially dangerous! Don't run it on
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## arbitrary commands.
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export LC_ALL=C
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if [ "$#" -lt 1 ]; then
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echo "usage: $0 program..." >&2
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echo " or try 'make checkusage' to check all built programs" >&2
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exit 1
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fi
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builddir="."
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cmds=$(echo $@ | tr ' ' '\n' | sort)
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## Set alternative options for --help, --version
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## or --unknownopt. "x" means "not implemented".
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##
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## Examples:
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## alt_whereis__help="-h" # in past whereis(1) had no longopt for --help
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## alt_more__help="x" # more(1) had neither --help nor -h
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alt_fsck__unknownopt="-Tunknown" # no title (-T) and pass -unknown to fsck.foo
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function exec_option {
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local cmdb=$1
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local cmd=$2
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opt=$3
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local alt="alt_${cmdb}${opt}"
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alt=${alt//-/_}
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alt=${alt//./_}
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alt=$(eval printf -- \"\$${alt}\")
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if test -n "$alt"; then
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if test "$alt" = "x"; then
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return 1
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fi
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opt=$alt
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fi
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out=$("$cmd" "$opt" 2>/dev/null)
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err=$("$cmd" "$opt" 2>&1 >/dev/null)
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ret=$?
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# hardcoded ... nologin should always return false
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if test "$cmdb" = "nologin" &&
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test "$opt" = "--help" -o "$opt" = "--version"; then
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if test "$ret" = "0"; then
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echo "$cmdb, $opt, should return false"
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fi
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ret=0
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fi
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return 0
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}
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function check_help {
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local cb=$1
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local c=$2
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if ! exec_option "$cb" "$c" --help; then
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return 1
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fi
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if test $ret != 0; then
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echo "$cb: $opt, returns error"
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else
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if test -z "$out"; then
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echo "$cb: $opt, no stdout"
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fi
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if test -n "$err"; then
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echo "$cb: $opt, non-empty stderr"
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fi
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fi
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return 0
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}
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function check_version {
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local cb=$1
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local c=$2
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if ! exec_option "$cb" "$c" --version; then
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return 1
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fi
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if test $ret != 0; then
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echo "$cb: $opt, returns error"
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else
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if test -z "$out"; then
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echo "$cb: $opt, no stdout"
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fi
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if test -n "$err"; then
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echo "$cb: $opt, non-empty stderr"
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fi
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fi
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}
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function check_unknownopt {
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local cb=$1
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local c=$2
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local nohelp=$3
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if ! exec_option "$cb" "$c" --unknownopt; then
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return 1
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fi
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if test $ret = 0; then
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echo "$cb: $opt, returns no error"
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fi
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if test -n "$out"; then
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echo "$cb: $opt, non-empty stdout"
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fi
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if test -z "$err"; then
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echo "$cb: $opt, no stderr"
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elif test -z "$nohelp" -o "$nohelp" != "yes"; then
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out_len=$(echo "$out" | wc -l)
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err_len=$(echo "$err" | wc -l)
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if test "$err_len" -gt 2; then
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# hardcoded ignore ... mkfs sends options to mkfs.ext2
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if test "$cb" != "mkfs" -a "$cb" != "fsck"; then
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echo "$cb: $opt, stderr too long: $err_len"
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fi
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elif test "$err_len" -lt 2; then
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echo "$cb: $opt, stderr too short: $err_len"
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fi
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fi
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}
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for cb in $cmds; do
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c="$builddir/$cb"
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if ! type "$c" &>/dev/null; then
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echo "$cb: does not exist"
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continue
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fi
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nohelp="no"
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if ! check_help "$cb" "$c"; then
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nohelp="yes"
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fi
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check_version "$cb" "$c"
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check_unknownopt "$cb" "$c" "$nohelp"
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done
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