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[subset] More complete sanitization implementation for hdmx.

This commit is contained in:
Garret Rieger 2018-02-22 16:48:28 -08:00
parent c02532a3d2
commit 96d7805a92
1 changed files with 14 additions and 4 deletions
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18
src/hb-ot-hdmx-table.hh
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@ -93,10 +93,11 @@ struct hdmx
return_trace (true);
}
inline bool sanitize (hb_sanitize_context_t *c) const
inline bool sanitize (hb_sanitize_context_t *c, unsigned int size_device_record) const
{
TRACE_SANITIZE (this);
return_trace (likely (c->check_struct (this)));
return_trace (likely (c->check_struct (this)
&& c->check_range (this, size_device_record)));
}
HBUINT8 pixel_size; /* Pixel size for following widths (as ppem). */
@ -174,8 +175,17 @@ struct hdmx
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (likely (c->check_struct (this)
&& version == 0));
if (unlikely (!c->check_struct (this) || version != 0))
return_trace (false);
if (unlikely (!c->check_range (this, get_size())))
return_trace (false);
for (unsigned int i = 0; i < num_records; i++)
{
if (unlikely (!records[i].sanitize (c, size_device_record)))
return_trace (false);
}
return_trace (true);
}
public: