Run this in a "sh SCRIPT":
sha256sum /dev/null
echo END
sha256sum is a NOEXEC applet. It runs in a forked child. Then child exit()s.
By this time, entire script is read, and buffered in a FILE object
from fopen("SCRIPT"). But fgetc() did not consume entire input.
exit() lseeks back by -9 bytes, from <eof> to 'e' in 'echo'.
(this may be libc-specific).
This change of fd position *is shared with the parent*!
Now parent can read more, and it thinks there is another "echo END".
End result: two "echo END"s are run.
Fix this by _exit()ing instead.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
		
	
		
			
				
	
	
		
			107 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			107 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
| #!/bin/sh
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| 
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| unset LANG LANGUAGE
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| unset LC_COLLATE
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| unset LC_CTYPE
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| unset LC_MONETARY
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| unset LC_MESSAGES
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| unset LC_NUMERIC
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| unset LC_TIME
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| unset LC_ALL
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| 
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| if test ! -x hush; then
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| 	if test ! -x ../../busybox; then
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| 		echo "Can't run tests. Put hush binary into this directory (`pwd`)"
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| 		exit 1
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| 	fi
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| 	echo "No ./hush - creating a link to ../../busybox"
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| 	ln -s ../../busybox hush
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| fi
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| if test ! -f .config; then
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| 	if test ! -f ../../.config; then
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| 		echo "Missing .config file"
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| 		exit 1
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| 	fi
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| 	cp ../../.config . || exit 1
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| fi
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| 
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| eval $(sed -e '/^#/d' -e '/^$/d' -e 's:^:export :' .config)
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| 
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| PATH="`pwd`:$PATH" # for hush and recho/zecho/printenv
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| export PATH
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| 
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| THIS_SH="`pwd`/hush"
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| export THIS_SH
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| 
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| do_test()
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| {
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| 	test -d "$1" || return 0
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| 	d=${d%/}
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| #	echo Running tests in directory "$1"
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| 	(
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| 	tret=0
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| 	cd "$1" || { echo "cannot cd $1!"; exit 1; }
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| 	for x in run-*; do
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| 		test -f "$x" || continue
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| 		case "$x" in
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| 			"$0"|run-minimal|run-gprof) ;;
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| 			*.orig|*~) ;;
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| 			#*) echo $x ; sh $x ;;
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| 			*)
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| 			echo -n "$1/$x:"
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| 			sh "$x" >"../$1-$x.fail" 2>&1 && \
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| 			{ { echo " ok"; rm "../$1-$x.fail"; } || echo " fail"; }
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| 			;;
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| 		esac
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| 	done
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| 	# Many bash run-XXX scripts just do this,
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| 	# no point in duplication it all over the place
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| 	for x in *.tests; do
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| 	test -x "$x" || continue
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| 	name="${x%%.tests}"
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| 	test -f "$name.right" || continue
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| #	echo Running test: "$x"
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| 	echo -n "$1/$x:"
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| 	(
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| 		"$THIS_SH" "./$x" >"$name.xx" 2>&1
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| 		r=$?
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| 		# filter C library differences
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| 		sed -i \
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| 			-e "/: invalid option /s:'::g" \
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| 			"$name.xx"
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| 		test $r -eq 77 && rm -f "../$1-$x.fail" && exit 77
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| 		diff -u "$name.xx" "$name.right" >"../$1-$x.fail" && rm -f "$name.xx" "../$1-$x.fail"
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| 	)
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| 	case $? in
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| 		0)  echo " ok";;
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| 		77) echo " skip (feature disabled)";;
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| 		*)  echo " fail"; tret=1;;
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| 	esac
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| 	done
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| 	exit ${tret}
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| 	)
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| }
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| 
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| # Main part of this script
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| # Usage: run-all [directories]
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| 
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| ret=0
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| 
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| if [ $# -lt 1 ]; then
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| 	# All sub directories
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| 	modules=`ls -d hush-*`
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| 
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| 	for module in $modules; do
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| 	do_test $module || ret=1
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| 	done
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| else
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| 	while [ $# -ge 1 ]; do
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| 	if [ -d $1 ]; then
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| 		do_test $1 || ret=1
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| 	fi
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| 	shift
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| 	done
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| fi
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| 
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| exit ${ret}
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