xref: /aosp_15_r20/external/one-true-awk/testdir/T.overflow (revision 9a7741de182b2776d7b30d6355f2585c0780a51b)

echo T.overflow: test some overflow conditions

awk=${awk-../a.out}

$awk 'BEGIN {
 	for (i = 0; i < 1000; i++) printf("abcdefghijklmnopqsrtuvwxyz")
 	printf("\n")
 	exit
}' >foo1
$awk '{print}' foo1 >foo2
cmp -s foo1 foo2 || echo 'BAD: T.overflow record 1'

echo 'abcdefghijklmnopqsrtuvwxyz' >foo1
echo hello | $awk '
 { for (i = 1; i < 500; i++) s = s "abcdefghijklmnopqsrtuvwxyz "
   $0 = s
   print $1
 }'  >foo2
cmp -s foo1 foo2 || echo 'BAD: T.overflow abcdef'

# default input record 3072, fields 200:
$awk '
BEGIN {
	for (j = 0; j < 2; j++) {
		for (i = 0; i < 500; i++)
			printf(" 123456789")
		printf("\n");
	}
} ' >foo1
$awk '{$1 = " 123456789"; print}' foo1 >foo2
cmp -s foo1 foo2 || echo 'BAD: T.overflow -mr -mf set $1'

$awk '
BEGIN {
	for (j = 0; j < 2; j++) {
		for (i = 0; i < 500; i++)
			printf(" 123456789")
		printf("\n");
	}
} ' >foo
$awk  '{print NF}' foo >foo1
echo '500
500' >foo2
cmp -s foo1 foo2 || echo 'BAD: T.overflow -mr -mf NF'

rm -f core
# this should not drop core
$awk 'BEGIN {
	for (i = 1; i < 1000; i++) s = s "a-z"
	if ("x" ~ "[" s "]")
		print "ugh"
}' >foo 2>foo
test -r core && echo 1>&2 "BAD: T.overflow too long char class dropped core"

echo 4000004 >foo1
$awk '
BEGIN {
	x1 = sprintf("%1000000s\n", "hello")
	x2 = sprintf("%-1000000s\n", "world")
	x3 = sprintf("%1000000.1000000s\n", "goodbye")
	x4 = sprintf("%-1000000.1000000s\n", "goodbye")
	print length(x1 x2 x3 x4)
}' >foo2
cmp -s foo1 foo2 || echo 'BAD: T.overflow huge sprintfs'

echo 0 >foo1
$awk '
BEGIN {
	for (i = 0; i < 100000; i++)
		x[i] = i
	for (i in x)
		delete x[i]
	n = 0
	for (i in x)
		n++
	print n
}' >foo2
cmp -s foo1 foo2 || echo 'BAD: T.overflow big array'

echo x >foo1
$awk '{print $40000000000000}' <foo1 >foo2 2>foo
grep "out of range field" foo >/dev/null || echo 1>&2 "BAD: T.overflow \$400000"

rm -rf /tmp/awktestfoo*
$awk 'BEGIN { for (i=1; i <= 1000; i++) print i >("/tmp/awktestfoo" i) }'
ls /tmp/awktestfoo* | grep '1000' >/dev/null || echo 1>&2 "BAD: T.overflow openfiles"
rm -rf /tmp/awktestfoo*
exit 0