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BASE: sanitize

This commit is contained in:
Elie Roux 2017-02-25 16:19:35 +01:00
parent f131f00b17
commit 1d30c6d935
1 changed files with 148 additions and 3 deletions
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151
src/hb-ot-layout-base-table.hh
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@ -48,6 +48,13 @@ namespace OT {
*/
struct BaseCoordFormat1 {
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this));
}
protected:
USHORT baseCoordFormat;
SHORT coordinate;
@ -57,6 +64,13 @@ struct BaseCoordFormat1 {
};
struct BaseCoordFormat2 {
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this));
}
protected:
USHORT baseCoordFormat;
SHORT coordinate;
@ -68,6 +82,13 @@ struct BaseCoordFormat2 {
};
struct BaseCoordFormat3 {
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) && deviceTable.sanitize (c, this));
}
protected:
USHORT baseCoordFormat;
SHORT coordinate;
@ -78,6 +99,20 @@ struct BaseCoordFormat3 {
};
struct BaseCoord {
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
if (!u.baseCoordFormat.sanitize (c)) return_trace (false);
switch (u.baseCoordFormat) {
case 1: return_trace (u.format1.sanitize (c));
case 2: return_trace (u.format2.sanitize (c));
case 3: return_trace (u.format3.sanitize (c));
default:return_trace (true);
}
}
protected:
union {
USHORT baseCoordFormat;
@ -91,6 +126,15 @@ struct BaseCoord {
};
struct FeatMinMaxRecord {
inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
minCoord.sanitize (c, base) &&
maxCoord.sanitize (c, base));
}
protected:
Tag featureTableTag;
OffsetTo<BaseCoord> minCoord;
@ -102,6 +146,16 @@ struct FeatMinMaxRecord {
};
struct MinMaxTable {
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
minCoord.sanitize (c, this) &&
maxCoord.sanitize (c, this) &&
featMinMaxRecordTable.sanitize (c, this));
}
protected:
OffsetTo<BaseCoord> minCoord;
OffsetTo<BaseCoord> maxCoord;
@ -114,6 +168,14 @@ struct MinMaxTable {
};
struct BaseLangSysRecord {
inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
minMax.sanitize (c, base));
}
protected:
Tag baseLangSysTag;
OffsetTo<MinMaxTable> minMax;
@ -124,6 +186,14 @@ struct BaseLangSysRecord {
};
struct BaseValuesTable {
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
baseCoordTable.sanitize (c, this));
}
protected:
USHORT defaultIndex;
USHORT baseCoordCount;
@ -135,6 +205,16 @@ struct BaseValuesTable {
};
struct BaseScriptTable {
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
baseValues.sanitize (c, this) &&
defaultMinMax.sanitize (c, this) &&
baseLangSysRecordTable.sanitize (c, this));
}
protected:
OffsetTo<BaseValuesTable> baseValues;
OffsetTo<MinMaxTable> defaultMinMax;
@ -148,6 +228,13 @@ struct BaseScriptTable {
struct BaseScriptRecord {
inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
baseScript.sanitize (c, base));
}
protected:
Tag baseScriptTag;
OffsetTo<BaseScriptTable> baseScript;
@ -158,6 +245,13 @@ struct BaseScriptRecord {
struct BaseScriptList {
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
baseScriptRecordTable.sanitize (c, this));
}
protected:
USHORT baseScriptCount;
ArrayOf<BaseScriptRecord> baseScriptRecordTable;
@ -169,6 +263,12 @@ struct BaseScriptList {
struct BaselineTag {
inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this));
}
protected:
Tag tag;
@ -180,6 +280,13 @@ struct BaselineTag {
struct BaseTagList
{
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
baseTagListTable.sanitize (c, this));
}
protected:
USHORT baseTagCount;
ArrayOf<BaselineTag> baseTagListTable;
@ -191,6 +298,14 @@ struct BaseTagList
struct VertAxis
{
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
baseTagList.sanitize (c, this) &&
baseScriptList.sanitize (c, this));
}
protected:
OffsetTo<BaseTagList> baseTagList;
OffsetTo<BaseScriptList> baseScriptList;
@ -202,6 +317,14 @@ struct VertAxis
struct HorizAxis
{
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
baseTagList.sanitize (c, this) &&
baseScriptList.sanitize (c, this));
}
protected:
OffsetTo<HorizAxis> baseTagList;
OffsetTo<VertAxis> baseScriptList;
@ -214,6 +337,15 @@ struct HorizAxis
struct BASEFormat1_1
{
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
horizAxis.sanitize (c, this) &&
vertAxis.sanitize (c, this) &&
itemVarStore.sanitize (c, this));
}
protected:
FixedVersion<>version;
OffsetTo<HorizAxis> horizAxis;
@ -227,6 +359,14 @@ struct BASEFormat1_1
struct BASEFormat1_0
{
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
horizAxis.sanitize (c, this) &&
vertAxis.sanitize (c, this));
}
protected:
FixedVersion<>version;
OffsetTo<HorizAxis> horizAxis;
@ -240,11 +380,16 @@ struct BASE
{
static const hb_tag_t tableTag = HB_OT_TAG_BASE;
inline bool sanitize (hb_sanitize_context_t *c) const
inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
{
TRACE_SANITIZE (this);
return_trace (u.version.sanitize (c) &&
likely (u.version.major == 1));
if (!u.version.sanitize (c)) return_trace (false);
if (!likely(u.version.major == 1)) return_trace (false);
switch (u.version.minor) {
case 0: return_trace (u.format1_0.sanitize (c));
case 1: return_trace (u.format1_1.sanitize (c));
default:return_trace (true);
}
}
protected: