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Update dbfuzz2 to set a maximum database size of 100MiB by default, but

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with the new --max-db-size N option to change that limit.

FossilOrigin-Name: 21d6bb78ef2979d011b917d2d6519d7cd0009fcad83ed23ab2e9a5e02d8e51ab
This commit is contained in:
drh
2019-01-22 16:11:31 +00:00
parent 6ca644818b
commit 178edcd774
3 changed files with 21 additions and 7 deletions
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14
test/dbfuzz2.c
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@ -69,6 +69,9 @@ int eVerbosity = 0;
/* True to activate PRAGMA vdbe_debug=on */
static int bVdbeDebug = 0;
/* Maximum size of the in-memory database file */
static sqlite3_int64 szMax = 104857600;
/* libFuzzer invokes this routine with fuzzed database files (in aData).
** This routine run SQLite against the malformed database to see if it
** can provoke a failure or malfunction.
@ -78,6 +81,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *aData, size_t nByte){
sqlite3 *db;
int rc;
int i;
sqlite3_int64 x;
if( eVerbosity>=1 ){
printf("************** nByte=%d ***************\n", (int)nByte);
@ -92,6 +96,8 @@ int LLVMFuzzerTestOneInput(const uint8_t *aData, size_t nByte){
sqlite3_deserialize(db, "main", a, nByte, nByte,
SQLITE_DESERIALIZE_RESIZEABLE |
SQLITE_DESERIALIZE_FREEONCLOSE);
x = szMax;
sqlite3_file_control(db, "main", SQLITE_FCNTL_SIZE_LIMIT, &x);
if( bVdbeDebug ){
sqlite3_exec(db, "PRAGMA vdbe_debug=ON", 0, 0, 0);
}
@ -150,6 +156,14 @@ int LLVMFuzzerInitialize(int *pArgc, char ***pArgv){
bVdbeDebug = 1;
continue;
}
if( strcmp(z,"max-db-size")==0 ){
if( i+1==argc ){
fprintf(stderr, "missing argument to %s\n", argv[i]);
exit(1);
}
szMax = strtol(argv[++i], 0, 0);
continue;
}
if( strcmp(z,"max-stack")==0
|| strcmp(z,"max-data")==0
|| strcmp(z,"max-as")==0