mirror of
https://https.git.savannah.gnu.org/git/bash.git
synced 2026-06-21 12:57:58 +02:00
Chet Ramey
92 lines
2.4 KiB
Plaintext
92 lines
2.4 KiB
Plaintext
# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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: ${TMPDIR:=/tmp}
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TMPF=$TMPDIR/printf-oflow-$RANDOM
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printf_overflow ()
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{
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local r;
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line=$1 ; shift
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rm -f "$TMPF"
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printf "$@" 2>$TMPF
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r=$?
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if [ ! -s "$TMPF" ]; then
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echo "printf7.sub: $line: expected overflow error output to stderr" >&2
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fi
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rm -f "$TMPF"
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return $r
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}
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# tests of integer overflow for field width and precision arguments
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INT_MAX=$(getconf INT_MAX 2>/dev/null)
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[ -z "$INT_MAX" ] && INT_MAX=2147483647 # assume 32 bits
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TOOBIG=${INT_MAX}0 # effectively multiply by 10
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printf_overflow $LINENO '[%*s]\n' "${TOOBIG}"
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printf_overflow $LINENO '[%*s]\n' "${TOOBIG}" X
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printf_overflow $LINENO -v VAR '[%*s]' "${TOOBIG}"
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echo VAR="$VAR"
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unset -v VAR
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printf_overflow $LINENO -v VAR '[%*s]' "${TOOBIG}" X
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echo VAR="$VAR"
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unset -v VAR
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TOOBIG=9223372036854775825
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printf_overflow $LINENO '[%*s]\n' "${TOOBIG}"
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printf_overflow $LINENO '[%*s]\n' "${TOOBIG}" X
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printf_overflow $LINENO -v VAR '[%*s]' "${TOOBIG}"
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echo VAR="$VAR"
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unset -v VAR
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printf_overflow $LINENO -v VAR '[%*s]' "${TOOBIG}" X
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echo VAR="$VAR"
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unset -v VAR
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TOOBIG=$(( $INT_MAX * 10 ))
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printf_overflow $LINENO '[%.*s]\n' "${TOOBIG}"
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printf_overflow $LINENO '[%.*s]\n' "${TOOBIG}" X
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printf_overflow $LINENO -v VAR '[%.*s]' "${TOOBIG}"
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echo VAR="$VAR"
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unset -v VAR
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printf_overflow $LINENO -v VAR '[%.*s]' "${TOOBIG}" X
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echo VAR="$VAR"
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unset -v VAR
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TOOBIG=9223372036854775825
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printf_overflow $LINENO '[%.*s]\n' "${TOOBIG}"
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printf_overflow $LINENO '[%.*s]\n' "${TOOBIG}" X
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printf_overflow $LINENO -v VAR '[%.*s]' "${TOOBIG}"
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echo VAR="$VAR"
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unset -v VAR
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printf_overflow $LINENO -v VAR '[%.*s]' "${TOOBIG}" X
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echo VAR="$VAR"
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unset -v VAR
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# out of range inline precisions
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# can't test %s, too many varying implementations
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#printf "%.${TOOBIG}s\n" XY
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printf -v VAR "%.${TOOBIG}s\n" XY
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echo $VAR
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unset -v VAR
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printf_overflow $LINENO "%.${TOOBIG}Q\n" XY
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