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Fix #75857 #3078

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carusogabriel wants to merge 1 commit into from
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Fix #75857 #3078

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@carusogabriel
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@carusogabriel carusogabriel commented Feb 5, 2018 •
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This is a failing test case for https://bugs.php.net/bug.php?id=75857

The error is maybe in:

php-src/ext/date/php_date.c

Lines 1205 to 1210 in 39c5857

case 'e': if (!localtime) {
length = slprintf(buffer, 32, "%s", "UTC");
} else {
switch (t->zone_type) {
case TIMELIB_ZONETYPE_ID:
length = slprintf(buffer, 32, "%s", t->tz_info->name);

Should we simply change the len size to 33 or so?

Also, was reported in 7.2.2RC1, but should we target 7.1?

@cmb69
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cmb69 commented Feb 6, 2018

If a test is supposed to fail, it should have an XFAIL section.

Wrt. the actual bugfix: I wonder why there are hard-coded lengths at all. It seems to me that sizeof(buffer) would be preferable.

@carusogabriel
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carusogabriel commented Feb 6, 2018

@cmb69 Sorry, I didn't put it to fail and we discuss a solution, but sorry, I'll put next time.

It seems to me that sizeof(buffer) would be preferable.

Hm, makes sense, like

php-src/ext/interbase/ibase_query.c

Lines 1335 to 1345 in c73e8a0

l = slprintf(string_data, sizeof(string_data), "%" LL_MASK "d", *(ISC_INT64 *) data);
ZVAL_STRINGL(val,string_data,l);
} else {
ISC_INT64 n = *(ISC_INT64 *) data, f = scales[-scale];
if (n >= 0) {
l = slprintf(string_data, sizeof(string_data), "%" LL_MASK "d.%0*" LL_MASK "d", n / f, -scale, n % f);
} else if (n <= -f) {
l = slprintf(string_data, sizeof(string_data), "%" LL_MASK "d.%0*" LL_MASK "d", n / f, -scale, -n % f);
} else {
l = slprintf(string_data, sizeof(string_data), "-0.%0*" LL_MASK "d", -scale, -n % f);

?

@krakjoe
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krakjoe commented Feb 8, 2018

Target the lowest applicable branch that exhibits the behaviour.

Also, the test doesn't seem to fail anymore, so what's the current status of this patch ?

@krakjoe krakjoe added the Bug label Feb 8, 2018
@carusogabriel
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carusogabriel commented Feb 8, 2018

@krakjoe

Target the lowest applicable branch that exhibits the behavior.

Targeting 7.1...

Also, the test doesn't seem to fail anymore, so what's the current status of this patch?

I followed @cmb69 advice and change 32 (and others hard-coded values) to sizeof(buffer), and this fixed #75857

@carusogabriel carusogabriel changed the base branch from master to PHP-7.1 February 8, 2018 12:05
@carusogabriel
Fix #75857
95f4ca0 
Use sizeof buffer instead of hard-coded lenghts
@carusogabriel carusogabriel changed the title Add falling test case for #75857 Fix #75857 Feb 8, 2018
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php-pulls commented Feb 11, 2018

Comment on behalf of cmb at php.net:

Thanks, @carusogabriel! Applied via f706937.

@php-pulls php-pulls closed this Feb 11, 2018
@carusogabriel carusogabriel deleted the fix-75857 branch February 11, 2018 12:42
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@carusogabriel @cmb69 @krakjoe @php-pulls @nikic