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Improved detection of corruption on the freeblock list of a btree page.

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FossilOrigin-Name: 4b00799bdf107fce8a9dd84fd5bf6597e4f3373659b89aae4a1242be5964726f
This commit is contained in:
drh 2019-08-05 16:22:20 +00:00
parent 72d1eac673
commit 2b96b6969a
3 changed files with 15 additions and 12 deletions
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14
manifest
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@ -1,5 +1,5 @@
C Fix\sa\sproblem\swith\srenaming\sa\stable\swhen\sa\sview\sor\strigger\swithin\sthe\sschema\suses\sa\sFILTER\swith\san\saggregate\sfunction\sthat\sis\snot\scurrently\sregistered\swith\sthe\sdatabase.
D 2019-08-05T13:19:25.017
C Improved\sdetection\sof\scorruption\son\sthe\sfreeblock\slist\sof\sa\sbtree\spage.
D 2019-08-05T16:22:20.557
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@ -464,7 +464,7 @@ F src/auth.c a3d5bfdba83d25abed1013a8c7a5f204e2e29b0c25242a56bc02bb0c07bf1e06
F src/backup.c f70077d40c08b7787bfe934e4d1da8030cb0cc57d46b345fba2294b7d1be23ab
F src/bitvec.c 17ea48eff8ba979f1f5b04cc484c7bb2be632f33
F src/btmutex.c 8acc2f464ee76324bf13310df5692a262b801808984c1b79defb2503bbafadb6
F src/btree.c 4f122e985d939452677e67ce777a8ac68737c96a6e47aa0a4620e574b31bed0c
F src/btree.c 397b5075441d0bd7366e93f6f2ef908dd0610cd80c4e351f4a900b614e32ccf0
F src/btree.h c11446f07ec0e9dc85af8041cb0855c52f5359c8b2a43e47e02a685282504d89
F src/btreeInt.h 6111c15868b90669f79081039d19e7ea8674013f907710baa3c814dc3f8bfd3f
F src/build.c 48f22e7c3b80550eb9c0cc3a3738f9117109b87d5f5fdba027009b7f2917df4a
@ -1838,7 +1838,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P b6d52c9364767ff4ab7279ae981afb97799299dcfaf38a0110c40ca82c72a825
R 28ce5921d081582c0d1ccac9c38fc5f7
U dan
Z 3ddbf0b6cdda36b7df15d0621b9689d7
P 2ac0e42f8ab7a9184c2a2efd13bd50ab51bc01f9f34e9e63591fd18db02dff54
R 25b0309e54c4a44a38baef97d33cecfa
U drh
Z 87c0b13ed7ac3ffed0f21199971e8372

2
manifest.uuid
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@ -1 +1 @@
2ac0e42f8ab7a9184c2a2efd13bd50ab51bc01f9f34e9e63591fd18db02dff54
4b00799bdf107fce8a9dd84fd5bf6597e4f3373659b89aae4a1242be5964726f

11
src/btree.c
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@ -1647,9 +1647,12 @@ static int allocateSpace(MemPage *pPage, int nByte, int *pIdx){
if( (data[hdr+2] || data[hdr+1]) && gap+2<=top ){
u8 *pSpace = pageFindSlot(pPage, nByte, &rc);
if( pSpace ){
assert( pSpace>=data && (pSpace - data)<65536 );
*pIdx = (int)(pSpace - data);
return SQLITE_OK;
assert( pSpace+nByte<=data+pPage->pBt->usableSize );
if( (*pIdx = (int)(pSpace-data))<=gap ){
return SQLITE_CORRUPT_PAGE(pPage);
}else{
return SQLITE_OK;
}
}else if( rc ){
return rc;
}
@ -6896,7 +6899,7 @@ static int rebuildPage(
assert( i<iEnd );
j = get2byte(&aData[hdr+5]);
if( j>(u32)usableSize ){ j = 0; }
if( NEVER(j>(u32)usableSize) ){ j = 0; }
memcpy(&pTmp[j], &aData[j], usableSize - j);
for(k=0; pCArray->ixNx[k]<=i && ALWAYS(k<NB*2); k++){}