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ftobjs.c: Formatting.

This commit is contained in:
Werner Lemberg 2016-12-20 23:22:06 +01:00
parent d5fe8da774
commit b55730320c
1 changed files with 45 additions and 19 deletions
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54
src/base/ftobjs.c
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@ -1601,6 +1601,7 @@
{ {
FT_Error error = FT_ERR( Cannot_Open_Resource ); FT_Error error = FT_ERR( Cannot_Open_Resource );
FT_Memory memory = library->memory; FT_Memory memory = library->memory;
FT_Byte* pfb_data = NULL; FT_Byte* pfb_data = NULL;
int i, type, flags; int i, type, flags;
FT_ULong len; FT_ULong len;
@ -1621,7 +1622,7 @@
error = FT_Stream_Seek( stream, (FT_ULong)offsets[i] ); error = FT_Stream_Seek( stream, (FT_ULong)offsets[i] );
if ( error ) if ( error )
goto Exit; goto Exit;
if ( FT_READ_ULONG( temp ) ) if ( FT_READ_ULONG( temp ) ) /* actually LONG */
goto Exit; goto Exit;
/* FT2 allocator takes signed long buffer length, /* FT2 allocator takes signed long buffer length,
@ -1630,11 +1631,14 @@
FT_TRACE4(( " POST fragment #%d: length=0x%08x" FT_TRACE4(( " POST fragment #%d: length=0x%08x"
" total pfb_len=0x%08x\n", " total pfb_len=0x%08x\n",
i, temp, pfb_len + temp + 6 )); i, temp, pfb_len + temp + 6 ));
if ( FT_MAC_RFORK_MAX_LEN < temp || if ( FT_MAC_RFORK_MAX_LEN < temp ||
FT_MAC_RFORK_MAX_LEN - temp < pfb_len + 6 ) FT_MAC_RFORK_MAX_LEN - temp < pfb_len + 6 )
{ {
FT_TRACE2(( " MacOS resource length cannot exceed" FT_TRACE2(( " MacOS resource length cannot exceed"
" 0x%08x\n", FT_MAC_RFORK_MAX_LEN )); " 0x%08x\n",
FT_MAC_RFORK_MAX_LEN ));
error = FT_THROW( Invalid_Offset ); error = FT_THROW( Invalid_Offset );
goto Exit; goto Exit;
} }
@ -1642,15 +1646,20 @@
pfb_len += temp + 6; pfb_len += temp + 6;
} }
FT_TRACE2(( " total buffer size to concatenate %d" FT_TRACE2(( " total buffer size to concatenate"
" POST fragments: 0x%08x\n", " %d POST fragments: 0x%08x\n",
resource_cnt, pfb_len + 2 )); resource_cnt, pfb_len + 2 ));
if ( pfb_len + 2 < 6 ) {
if ( pfb_len + 2 < 6 )
{
FT_TRACE2(( " too long fragment length makes" FT_TRACE2(( " too long fragment length makes"
" pfb_len confused: pfb_len=0x%08x\n", pfb_len )); " pfb_len confused: pfb_len=0x%08x\n",
pfb_len ));
error = FT_THROW( Array_Too_Large ); error = FT_THROW( Array_Too_Large );
goto Exit; goto Exit;
} }
if ( FT_ALLOC( pfb_data, (FT_Long)pfb_len + 2 ) ) if ( FT_ALLOC( pfb_data, (FT_Long)pfb_len + 2 ) )
goto Exit; goto Exit;
@ -1665,7 +1674,8 @@
len = 0; len = 0;
type = 1; type = 1;
for ( i = 0; i < resource_cnt; ++i )
for ( i = 0; i < resource_cnt; i++ )
{ {
error = FT_Stream_Seek( stream, (FT_ULong)offsets[i] ); error = FT_Stream_Seek( stream, (FT_ULong)offsets[i] );
if ( error ) if ( error )
@ -1684,18 +1694,24 @@
if ( FT_READ_USHORT( flags ) ) if ( FT_READ_USHORT( flags ) )
goto Exit2; goto Exit2;
FT_TRACE3(( "POST fragment[%d]: offsets=0x%08x, rlen=0x%08x, flags=0x%04x\n",
FT_TRACE3(( "POST fragment[%d]:"
" offsets=0x%08x, rlen=0x%08x, flags=0x%04x\n",
i, offsets[i], rlen, flags )); i, offsets[i], rlen, flags ));
error = FT_ERR( Array_Too_Large ); error = FT_ERR( Array_Too_Large );
/* postpone the check of rlen longer than buffer until FT_Stream_Read() */
/* postpone the check of `rlen longer than buffer' */
/* until `FT_Stream_Read' */
if ( ( flags >> 8 ) == 0 ) /* Comment, should not be loaded */ if ( ( flags >> 8 ) == 0 ) /* Comment, should not be loaded */
{ {
FT_TRACE3(( " Skip POST fragment #%d because it is a comment\n", i )); FT_TRACE3(( " Skip POST fragment #%d because it is a comment\n",
i ));
continue; continue;
} }
/* the flags are part of the resource, so rlen >= 2. */ /* the flags are part of the resource, so rlen >= 2, */
/* but some fonts declare rlen = 0 for empty fragment */ /* but some fonts declare rlen = 0 for empty fragment */
if ( rlen > 2 ) if ( rlen > 2 )
rlen -= 2; rlen -= 2;
@ -1707,9 +1723,12 @@
else else
{ {
FT_TRACE3(( " Write POST fragment #%d header (4-byte) to buffer" FT_TRACE3(( " Write POST fragment #%d header (4-byte) to buffer"
" %p + 0x%08x\n", i, pfb_data, pfb_lenpos )); " %p + 0x%08x\n",
i, pfb_data, pfb_lenpos ));
if ( pfb_lenpos + 3 > pfb_len + 2 ) if ( pfb_lenpos + 3 > pfb_len + 2 )
goto Exit2; goto Exit2;
pfb_data[pfb_lenpos ] = (FT_Byte)( len ); pfb_data[pfb_lenpos ] = (FT_Byte)( len );
pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 ); pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 );
pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 ); pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 );
@ -1719,9 +1738,12 @@
break; break;
FT_TRACE3(( " Write POST fragment #%d header (6-byte) to buffer" FT_TRACE3(( " Write POST fragment #%d header (6-byte) to buffer"
" %p + 0x%08x\n", i, pfb_data, pfb_pos )); " %p + 0x%08x\n",
i, pfb_data, pfb_pos ));
if ( pfb_pos + 6 > pfb_len + 2 ) if ( pfb_pos + 6 > pfb_len + 2 )
goto Exit2; goto Exit2;
pfb_data[pfb_pos++] = 0x80; pfb_data[pfb_pos++] = 0x80;
type = flags >> 8; type = flags >> 8;
@ -1739,14 +1761,18 @@
goto Exit2; goto Exit2;
FT_TRACE3(( " Load POST fragment #%d (%d byte) to buffer" FT_TRACE3(( " Load POST fragment #%d (%d byte) to buffer"
" %p + 0x%08x\n", i, rlen, pfb_data, pfb_pos )); " %p + 0x%08x\n",
i, rlen, pfb_data, pfb_pos ));
error = FT_Stream_Read( stream, (FT_Byte *)pfb_data + pfb_pos, rlen ); error = FT_Stream_Read( stream, (FT_Byte *)pfb_data + pfb_pos, rlen );
if ( error ) if ( error )
goto Exit2; goto Exit2;
pfb_pos += rlen; pfb_pos += rlen;
} }
error = FT_ERR( Array_Too_Large ); error = FT_ERR( Array_Too_Large );
if ( pfb_pos + 2 > pfb_len + 2 ) if ( pfb_pos + 2 > pfb_len + 2 )
goto Exit2; goto Exit2;
pfb_data[pfb_pos++] = 0x80; pfb_data[pfb_pos++] = 0x80;