#47842 [NEW]: sscanf does not support 64-bit values

From:             signe at cothlamadh dot net
Operating system: FreeBSD 64-bit, Linux 64-bit
PHP version:      5.2.9
PHP Bug Type:     Unknown/Other Function
Bug description:  sscanf does not support 64-bit values

Description:
------------
On 64-bit operating systems, printf()'s %d and %u formatting codes support
64-bit integers.   sscanf, which supposedly uses the same code (and has the
same expected behavior) does not support 64-bit values.

Also, printf is not outputting accurate values when it reaches numbers
near the upper bounds of a 64-bit int.

Reproduce code:
---------------
<?php

sscanf("2147483647", '%d', $int);
echo "sscanf 32-bit signed int '2147483647'           (2^31)-1 =
",$int,"\n";
sscanf("4294967295", '%u', $int);
echo "sscanf 32-bit unsign int '4294967295'           (2^32)-1 =
",$int,"\n";

sscanf("9223372036854775807", '%d', $int);
echo "sscanf 64-bit signed int '9223372036854775807'  (2^63)-1 =
",$int,"\n";
sscanf("18446744073709551615", '%u', $int);
echo "sscanf 64-bit unsign int '18446744073709551615' (2^64)-1 =
",$int,"\n";

printf("printf 64-bit signed int '9223372036854775807'  (2^63)-1 = %d\n",
9223372036854775807);
printf("printf 64-bit signed int '18446744073709551615' (2^64)-1 = %u\n",
18446744073709551615);


echo "\n(2^64)-1 - 100,000,000\n";
printf("printf 64-bit signed int '18446744073609551615' = %u\n",
18446744073609551615);
echo "Output is 257 greater than input\n";
?>

Expected result:
----------------
sscanf 32-bit signed int '2147483647'           (2^31)-1 = 2147483647
sscanf 32-bit unsign int '4294967295'           (2^32)-1 = 4294967295
sscanf 64-bit signed int '9223372036854775807'  (2^63)-1 =
9223372036854775807
sscanf 64-bit unsign int '18446744073709551615' (2^64)-1 =
18446744073709551615
printf 64-bit signed int '9223372036854775807'  (2^63)-1 =
9223372036854775807
printf 64-bit signed int '18446744073709551615' (2^64)-1 =
18446744073709551615

Actual result:
--------------
sscanf 32-bit signed int '2147483647'           (2^31)-1 = 2147483647
sscanf 32-bit unsign int '4294967295'           (2^32)-1 = 4294967295
sscanf 64-bit signed int '9223372036854775807'  (2^63)-1 = -1
sscanf 64-bit unsign int '18446744073709551615' (2^64)-1 = 4294967295
printf 64-bit signed int '9223372036854775807'  (2^63)-1 =
9223372036854775807
printf 64-bit signed int '18446744073709551615' (2^64)-1 = 0


printf 64-bit signed int '18446744073609551615' ((2^64)-1 - 100000000) =
18446744073609551872
Output is 257 greater than input

-- 
Edit bug report at http://bugs.php.net/?id=47842&edit=1
-- 
Try a CVS snapshot (PHP 5.2):        http://bugs.php.net/fix.php?id=47842&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):        http://bugs.php.net/fix.php?id=47842&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):        http://bugs.php.net/fix.php?id=47842&r=trysnapshot60
Fixed in CVS:                        http://bugs.php.net/fix.php?id=47842&r=fixedcvs
Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=47842&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=47842&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=47842&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=47842&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=47842&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=47842&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=47842&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=47842&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=47842&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=47842&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=47842&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=47842&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=47842&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=47842&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=47842&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=47842&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=47842&r=mysqlcfg