rm1

实战Linux编程的原代码,希望对学驱动的人能有所帮助

#!/bin/sh
# exercise another small part of remove.c

if test "$VERBOSE" = yes; then
  set -x
  rm --version
fi

. $srcdir/../envvar-check
. $srcdir/../lang-default
PRIV_CHECK_ARG=require-non-root . $srcdir/../priv-check

pwd=`pwd`
t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
trap 'status=$?; cd $pwd; chmod -R u+rwx $t0; rm -rf $t0 && exit $status' 0
trap '(exit $?); exit' 1 2 13 15

framework_failure=0
mkdir -p $tmp || framework_failure=1
cd $tmp || framework_failure=1
mkdir -p b/a/p b/c b/d || framework_failure=1
chmod u-w b/a || framework_failure=1

if test $framework_failure = 1; then
  echo "$0: failure in testing framework" 1>&2
  (exit 1); exit
fi

fail=0

# This should fail.
rm -rf b > out 2>&1 && fail=1
cat <<\EOF > exp
rm: cannot remove directory `b/a/p': Permission denied
EOF

# On some systems, rm doesn't have enough information to
# say it's a directory.
cat <<\EOF > exp2
rm: cannot remove `b/a/p': Permission denied
EOF

cmp out exp > /dev/null 2>&1 || {
  cmp out exp2 || fail=1
  }
test $fail = 1 && diff out exp 2> /dev/null

test -d b/a/p || fail=1
test -d b/c && fail=1
test -d b/d && fail=1

(exit $fail); exit