Add the --native-malloc option to fuzzcheck. Fix ossfuzz.c and fuzzcheck.c

so that they both deallocate the temp_store_directory before closing.

FossilOrigin-Name: 0dd18ec882bb28a87629d6d8dfeb5ea5d82833634b3781a7d14b917272c4dfa0

manifest

@@ -1,5 +1,5 @@
-C Fix\sthe\sfuzzcheck\sprogram\sso\sthat\sit\scan\screate\snew\sdatabases\sagain.
-D 2017-03-20T20:42:21.876
+C Add\sthe\s--native-malloc\soption\sto\sfuzzcheck.\s\sFix\sossfuzz.c\sand\sfuzzcheck.c\nso\sthat\sthey\sboth\sdeallocate\sthe\stemp_store_directory\sbefore\sclosing.
+D 2017-03-20T22:58:27.453
 F Makefile.in 1cc758ce3374a32425e4d130c2fe7b026b20de5b8843243de75f087c0a2661fb
 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 F Makefile.msc 1faf9f06aadc9284c212dea7bbc7c0dea7e8337f0287c81001eff500912c790a
@@ -833,7 +833,7 @@ F test/fuzz2.test 76dc35b32b6d6f965259508508abce75a6c4d7e1
 F test/fuzz3.test b47377143f0c80f91ed29d722861077ff34415d5
 F test/fuzz_common.tcl a87dfbb88c2a6b08a38e9a070dabd129e617b45b
 F test/fuzz_malloc.test 328f70aaca63adf29b4c6f06505ed0cf57ca7c26
-F test/fuzzcheck.c 0cfce51bd5b0b7ab5d2d2ecaf9a82d5962f90852348be6bf5f05a1fb2aaf40e0
+F test/fuzzcheck.c 2152602232c96d9c790eff3013e1369ce59de3203fa0b75bc613531448454e61
 F test/fuzzdata1.db 7ee3227bad0e7ccdeb08a9e6822916777073c664
 F test/fuzzdata2.db f03a420d3b822cc82e4f894ca957618fbe9c4973
 F test/fuzzdata3.db c6586d3e3cef0fbc18108f9bb649aa77bfc38aba
@@ -1009,7 +1009,7 @@ F test/orderby7.test 3d1383d52ade5b9eb3a173b3147fdd296f0202da
 F test/orderby8.test 23ef1a5d72bd3adcc2f65561c654295d1b8047bd
 F test/orderby9.test 87fb9548debcc2cd141c5299002dd94672fa76a3
 F test/oserror.test b32dc34f2363ef18532e3a0a7358e3e7e321974f
-F test/ossfuzz.c 8c4d62e156352ecb97eb868fcff20d828a279af67a1c1310779f63464d6f009f
+F test/ossfuzz.c f5abed3177f719df3c3109901fcdd26b9fb7f581c8da50fc26f3a81ddfb2c2ae
 F test/ossshell.c 296ab63067841bd1b1e97b46a0b2af48ee7f69d50d1a723008bee12dd7122622
 F test/ovfl.test 199c482696defceacee8c8e0e0ef36da62726b2f
 F test/pager1.test 841868017e9dd3cb459b8d78862091a7d9cff21d
@@ -1566,7 +1566,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 49b93d972de9649abfd6235b65dda1c9d468956671e50704afde6181ffa56dea
-R 26d368e43476d2b80e7af8c6d59964fd
+P 021e8874a7d1bb94debae3ae04f83056a8573148ffc872cd76a186a2d22d0296
+R 694ec38d9cd79a3b1927a92dd170b999
 U drh
-Z 95628c590b2b14daadfe6003e34f6d94
+Z 6cb1e54838f3a51f8b4c2a137da28ce9

manifest.uuid

@@ -1 +1 @@
-021e8874a7d1bb94debae3ae04f83056a8573148ffc872cd76a186a2d22d0296
+0dd18ec882bb28a87629d6d8dfeb5ea5d82833634b3781a7d14b917272c4dfa0

test/fuzzcheck.c

@@ -805,6 +805,7 @@ static void showHelp(void){
 "  --load-db ARGS...    Load template databases from files into SOURCE_DB\n"
 "  -m TEXT              Add a description to the database\n"
 "  --native-vfs         Use the native VFS for initially empty database files\n"
+"  --native-malloc      Turn off MEMSYS3/5 and Lookaside\n"
 "  --oss-fuzz           Enable OSS-FUZZ testing\n"
 "  --prng-seed N        Seed value for the PRGN inside of SQLite\n"
 "  --rebuild            Rebuild and vacuum the database file\n"
@@ -851,6 +852,7 @@ int main(int argc, char **argv){
   void *pHeap = 0;             /* Heap for use by SQLite */
   int ossFuzz = 0;             /* enable OSS-FUZZ testing */
   int ossFuzzThisDb = 0;       /* ossFuzz value for this particular database */
+  int nativeMalloc = 0;        /* Turn off MEMSYS3/5 and lookaside if true */
   sqlite3_vfs *pDfltVfs;       /* The default VFS */
 
   iBegin = timeOfDay();
@@ -911,6 +913,9 @@ int main(int argc, char **argv){
         if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
         zMsg = argv[++i];
       }else
+      if( strcmp(z,"native-malloc")==0 ){
+        nativeMalloc = 1;
+      }else
       if( strcmp(z,"native-vfs")==0 ){
         nativeFlag = 1;
       }else
@@ -1013,7 +1018,7 @@ int main(int argc, char **argv){
           ossFuzzThisDb = sqlite3_column_int(pStmt,1);
           if( verboseFlag ) printf("Config: oss-fuzz=%d\n", ossFuzzThisDb);
         }
-        if( strcmp(zName, "limit-mem")==0 ){
+        if( strcmp(zName, "limit-mem")==0 && !nativeMalloc ){
 #if !defined(SQLITE_ENABLE_MEMSYS3) && !defined(SQLITE_ENABLE_MEMSYS5)
           fatalError("the limit-mem option requires -DSQLITE_ENABLE_MEMSYS5"
                      " or _MEMSYS3");
@@ -1143,14 +1148,19 @@ int main(int argc, char **argv){
     }
 
     /* Limit available memory, if requested */
-    if( nMemThisDb>0 ){
-      sqlite3_shutdown();
+    sqlite3_shutdown();
+    if( nMemThisDb>0 && !nativeMalloc ){
       pHeap = realloc(pHeap, nMemThisDb);
       if( pHeap==0 ){
         fatalError("failed to allocate %d bytes of heap memory", nMem);
       }
       sqlite3_config(SQLITE_CONFIG_HEAP, pHeap, nMemThisDb, 128);
     }
+
+    /* Disable lookaside with the --native-malloc option */
+    if( nativeMalloc ){
+      sqlite3_config(SQLITE_CONFIG_LOOKASIDE, 0, 0);
+    }
   
     /* Reset the in-memory virtual filesystem */
     formatVfs();
@@ -1207,9 +1217,13 @@ int main(int argc, char **argv){
             runSql(db, (char*)pSql->a, runFlags);
           }while( timeoutTest );
           setAlarm(0);
+          sqlite3_exec(db, "PRAGMA temp_store_directory=''", 0, 0, 0);
           sqlite3_close(db);
         }
-        if( sqlite3_memory_used()>0 ) fatalError("memory leak");
+        if( sqlite3_memory_used()>0 ){
+           fatalError("memory leak: %lld bytes outstanding",
+                      sqlite3_memory_used());
+        }
         reformatVfs();
         nTest++;
         g.zTestName[0] = 0;

test/ossfuzz.c

@@ -145,6 +145,7 @@ int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   /* Cleanup and return */
   sqlite3_free(zErrMsg);
   sqlite3_free(zSql);
+  sqlite3_exec(cx.db, "PRAGMA temp_store_directory=''", 0, 0, 0);
   sqlite3_close(cx.db);
 
   if( mDebug & FUZZ_SHOW_MAX_DELAY ){