Fix some broken asserts in btree.c and vdbeaux.c that may fail following an OOM error.

FossilOrigin-Name: e15f47064bef431c0afd8bf93eb4e160c23ad562

manifest

@@ -1,5 +1,5 @@
-C Remove\sa\sfaulty\sassert()\sfrom\svdbesort.c.
-D 2014-05-02T16:03:57.598
+C Fix\ssome\sbroken\sasserts\sin\sbtree.c\sand\svdbeaux.c\sthat\smay\sfail\sfollowing\san\sOOM\serror.
+D 2014-05-02T17:12:41.912
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in ad0921c4b2780d01868cf69b419a4f102308d125
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -164,7 +164,7 @@ F src/auth.c 523da7fb4979469955d822ff9298352d6b31de34
 F src/backup.c a729e63cf5cd1829507cb7b8e89f99b95141bb53
 F src/bitvec.c 19a4ba637bd85f8f63fc8c9bae5ade9fb05ec1cb
 F src/btmutex.c 976f45a12e37293e32cae0281b15a21d48a8aaa7
-F src/btree.c 1e8fa0e597f73cc1b144285065f175f5a661ee75
+F src/btree.c e14daeed62b5b1499835a6523f9a47d660c297c8
 F src/btree.h d79306df4ed9181b48916737fe8871a4392c4594
 F src/btreeInt.h cf180d86b2e9e418f638d65baa425c4c69c0e0e3
 F src/build.c 9ea11e29230d8f454580870465354c707bd42851
@@ -283,7 +283,7 @@ F src/vdbe.c b50cd3009a2e3067746c73dce36153f19df2e42e
 F src/vdbe.h 394464909ed682334aa3d5831aae0c2fe2abef94
 F src/vdbeInt.h c78ace64dc37495806dd50596eded1f6cd2b5a64
 F src/vdbeapi.c 0ed6053f947edd0b30f64ce5aeb811872a3450a4
-F src/vdbeaux.c 8289ed68e2262844334461ccb1b91c4d55b29b0b
+F src/vdbeaux.c 6e6993fa4be39ab96bdd565994bee8ec3bef06ab
 F src/vdbeblob.c 9205ce9d3b064d9600f8418a897fc88b5687d9ac
 F src/vdbemem.c 6fc77594c60f6155404f3f8d71bf36d1fdeb4447
 F src/vdbesort.c 0095545ae3786d00c9104d036f5d092953a1e2d3
@@ -663,7 +663,7 @@ F test/lock_common.tcl 0c270b121d40959fa2f3add382200c27045b3d95
 F test/lookaside.test 93f07bac140c5bb1d49f3892d2684decafdc7af2
 F test/main.test 39c4bb8a157f57298ed1659d6df89d9f35aaf2c8
 F test/make-where7.tcl 05c16b5d4f5d6512881dfec560cb793915932ef9
-F test/malloc.test 26ae08a09cc15a98d147ee63925e3a66048e71c9
+F test/malloc.test ada8ae15193ffc6415bf431a6db31d4ec507dbfe
 F test/malloc3.test e3b32c724b5a124b57cb0ed177f675249ad0c66a
 F test/malloc4.test 957337613002b7058a85116493a262f679f3a261
 F test/malloc5.test fafce0aa9157060445cd1a56ad50fc79d82f28c3
@@ -1165,7 +1165,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh d1a6de74685f360ab718efda6265994b99bbea01
 F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
-P 9fb5e212089d85cdd3b4787dd69c72e6d84560b6
-R ee91b52dc43b32be4c405d028722e931
+P d95d68aa1d14b750888d50068380cc107f9070df
+R 2642a9b7016b11d8b125fe44a5d1acd4
 U dan
-Z 8b01b62c4d596e9ee4b370ddc9560981
+Z 60595d854f9f1dca901aef6c64df6a77

manifest.uuid

@@ -1 +1 @@
-d95d68aa1d14b750888d50068380cc107f9070df
+e15f47064bef431c0afd8bf93eb4e160c23ad562

src/btree.c

@@ -4735,7 +4735,7 @@ int sqlite3BtreeMovetoUnpacked(
         }
         assert( 
             (pIdxKey->errCode!=SQLITE_CORRUPT || c==0)
-         && (pIdxKey->errCode!=SQLITE_NOMEM || !pCur->pBtree->db->mallocFailed)
+         && (pIdxKey->errCode!=SQLITE_NOMEM || pCur->pBtree->db->mallocFailed)
         );
         if( c<0 ){
           lwr = idx+1;

src/vdbeaux.c

@@ -3593,8 +3593,9 @@ int sqlite3VdbeRecordCompare(
   /* rc==0 here means that one or both of the keys ran out of fields and
   ** all the fields up to that point were equal. Return the the default_rc
   ** value.  */
-  assert( CORRUPT_DB 
+  assert( CORRUPT_DB || pKeyInfo->db==0
        || pPKey2->default_rc==vdbeRecordCompareDebug(nKey1, pKey1, pPKey2) 
+       || pKeyInfo->db->mallocFailed
   );
   return pPKey2->default_rc;
 }
@@ -3692,10 +3693,11 @@ static int vdbeRecordCompareInt(
     res = pPKey2->default_rc;
   }
 
-  assert( (res==0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)==0)
+  assert( pPKey2->pKeyInfo->db==0
+       || (res==0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)==0)
        || (res<0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)<0)
        || (res>0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)>0)
-       || CORRUPT_DB
+       || CORRUPT_DB || pPKey2->pKeyInfo->db->mallocFailed
   );
   return res;
 }
@@ -3756,10 +3758,11 @@ static int vdbeRecordCompareString(
     }
   }
 
-  assert( (res==0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)==0)
+  assert( pPKey2->pKeyInfo->db==0 
+       || (res==0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)==0)
        || (res<0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)<0)
        || (res>0 && vdbeRecordCompareDebug(nKey1, pKey1, pPKey2)>0)
-       || CORRUPT_DB
+       || CORRUPT_DB || pPKey2->pKeyInfo->db->mallocFailed
   );
   return res;
 }

test/malloc.test

@@ -902,6 +902,26 @@ do_faultsim_test 40.3 -faults oom-trans* -body {
   faultsim_integrity_check
 }
 
+reset_db
+add_test_utf16bin_collate db
+set big [string repeat x 200]
+do_execsql_test 41.1 {
+  DROP TABLE IF EXISTS t1;
+  CREATE TABLE t1(a COLLATE utf16bin);
+  INSERT INTO t1 VALUES('fghij' || $::big);
+  INSERT INTO t1 VALUES('pqrst' || $::big);
+  INSERT INTO t1 VALUES('abcde' || $::big);
+  INSERT INTO t1 VALUES('uvwxy' || $::big);
+  INSERT INTO t1 VALUES('klmno' || $::big);
+  CREATE INDEX i1 ON t1(a);
+}
+do_faultsim_test 41.2 -faults oom* -body {
+  execsql { SELECT * FROM t1 WHERE a = ('abcde' || $::big)}
+} -test {
+  faultsim_test_result [list 0 "abcde$::big"]
+  faultsim_integrity_check
+}
+
 # Ensure that no file descriptors were leaked.
 do_test malloc-99.X {
   catch {db close}