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Bug #58004 Breaks UTF-8 in keys
Submitted: 2008-01-11 14:48 UTC Modified: 2008-01-11 16:34 UTC
From: nick at reloco dot com dot ar Assigned:
Status: Closed Package: memcache (PECL)
PHP Version: Irrelevant OS: Linux
Private report: No CVE-ID: None
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From: nick at reloco dot com dot ar
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 [2008-01-11 14:48 UTC] nick at reloco dot com dot ar 
Description:
------------
It's converting bytes with the 7th bit on to underscores, this breaks UTF-8. The cuplrit is mmc_prepare_key_ex(). This function does:

        for (i=0; i<*result_len; i++) {
                result[i] = key[i] > ' ' ? key[i] : '_';
        }

... to remove control characters, but as chars are signed... those with the high bit on will be negative!

The fix is to manually cast this to unsigned char before the comparison:

        for (i=0; i<*result_len; i++) {
                result[i] = ((unsigned char)key[i]) > ' ' ? key[i] : '_';
        }

Thanks!

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 [2008-01-11 16:34 UTC] mikael at synd dot info 
This bug has been fixed in CVS.

In case this was a documentation problem, the fix will show up at the
end of next Sunday (CET) on pecl.php.net.

In case this was a pecl.php.net website problem, the change will show
up on the website in short time.
 
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