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Add an extra test for database corruption to defragmentPage().

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FossilOrigin-Name: 80e951fce3e5aaa224c8dba6449832d2efabcdc24e86eb6b7833f85cf08ecc00
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dan
2019-03-21 21:18:36 +00:00
parent 87c889cfa5
commit dcc427cf19
4 changed files with 123 additions and 9 deletions
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src/btree.c
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@@ -1455,7 +1455,10 @@ static int defragmentPage(MemPage *pPage, int nMaxFrag){
if( iFree2+sz2 > usableSize ) return SQLITE_CORRUPT_PAGE(pPage);
memmove(&data[iFree+sz+sz2], &data[iFree+sz], iFree2-(iFree+sz));
sz += sz2;
}else if( iFree+sz>usableSize ){
return SQLITE_CORRUPT_PAGE(pPage);
}
cbrk = top+sz;
assert( cbrk+(iFree-top) <= usableSize );
memmove(&data[cbrk], &data[top], iFree-top);