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gdi: Metafile records must be at least 3 words long.

This commit is contained in:
Marcus Meissner 2006-01-21 19:23:17 +01:00 committed by Alexandre Julliard
parent c016509119
commit d6d6419602
1 changed files with 4 additions and 5 deletions
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9
dlls/gdi/metafile.c
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@ -419,11 +419,10 @@ BOOL MF_PlayMetaFile( HDC hdc, METAHEADER *mh)
mr = (METARECORD *)((char *)mh + offset); mr = (METARECORD *)((char *)mh + offset);
TRACE("offset=%04x,size=%08lx\n", TRACE("offset=%04x,size=%08lx\n",
offset, mr->rdSize); offset, mr->rdSize);
if (!mr->rdSize) { if (mr->rdSize < 3) { /* catch illegal record sizes */
TRACE( TRACE("Entry got size %ld at offset %d, total mf length is %ld\n",
"Entry got size 0 at offset %d, total mf length is %ld\n", mr->rdSize,offset,mh->mtSize*2);
offset,mh->mtSize*2); break;
break; /* would loop endlessly otherwise */
} }
offset += mr->rdSize * 2; offset += mr->rdSize * 2;
PlayMetaFileRecord( hdc, ht, mr, mh->mtNoObjects ); PlayMetaFileRecord( hdc, ht, mr, mh->mtNoObjects );