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# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
: ${TMPDIR:=/tmp}
TMPF=$TMPDIR/printf-oflow-$RANDOM
printf_overflow ()
{
local r;
line=$1 ; shift
rm -f "$TMPF"
printf "$@" 2>$TMPF
r=$?
if [ ! -s "$TMPF" ]; then
echo "printf7.sub: $line: expected overflow error output to stderr" >&2
fi
rm -f "$TMPF"
return $r
}
# tests of integer overflow for field width and precision arguments
INT_MAX=$(getconf INT_MAX 2>/dev/null)
[ -z "$INT_MAX" ] && INT_MAX=2147483647 # assume 32 bits
TOOBIG=${INT_MAX}0 # effectively multiply by 10
printf_overflow $LINENO '[%*s]\n' "${TOOBIG}"
printf_overflow $LINENO '[%*s]\n' "${TOOBIG}" X
printf_overflow $LINENO -v VAR '[%*s]' "${TOOBIG}"
echo VAR="$VAR"
unset -v VAR
printf_overflow $LINENO -v VAR '[%*s]' "${TOOBIG}" X
echo VAR="$VAR"
unset -v VAR
TOOBIG=9223372036854775825
printf_overflow $LINENO '[%*s]\n' "${TOOBIG}"
printf_overflow $LINENO '[%*s]\n' "${TOOBIG}" X
printf_overflow $LINENO -v VAR '[%*s]' "${TOOBIG}"
echo VAR="$VAR"
unset -v VAR
printf_overflow $LINENO -v VAR '[%*s]' "${TOOBIG}" X
echo VAR="$VAR"
unset -v VAR
TOOBIG=$(( $INT_MAX * 10 ))
printf_overflow $LINENO '[%.*s]\n' "${TOOBIG}"
printf_overflow $LINENO '[%.*s]\n' "${TOOBIG}" X
printf_overflow $LINENO -v VAR '[%.*s]' "${TOOBIG}"
echo VAR="$VAR"
unset -v VAR
printf_overflow $LINENO -v VAR '[%.*s]' "${TOOBIG}" X
echo VAR="$VAR"
unset -v VAR
TOOBIG=9223372036854775825
printf_overflow $LINENO '[%.*s]\n' "${TOOBIG}"
printf_overflow $LINENO '[%.*s]\n' "${TOOBIG}" X
printf_overflow $LINENO -v VAR '[%.*s]' "${TOOBIG}"
echo VAR="$VAR"
unset -v VAR
printf_overflow $LINENO -v VAR '[%.*s]' "${TOOBIG}" X
echo VAR="$VAR"
unset -v VAR
# out of range inline precisions
# can't test %s, too many varying implementations
#printf "%.${TOOBIG}s\n" XY
printf -v VAR "%.${TOOBIG}s\n" XY
echo $VAR
unset -v VAR
printf_overflow $LINENO "%.${TOOBIG}Q\n" XY
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