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Overview
| Comment: | Update dbfuzz2 to set a maximum database size of 100MiB by default, but with the new --max-db-size N option to change that limit. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
21d6bb78ef2979d011b917d2d6519d7c |
| User & Date: | drh 2019-01-22 16:11:31 |
Context
|
2019-01-22
| ||
| 16:43 | Fix the SQLITE_DESERIALIZE_READONLY feature so that it does not cause an assertion fault in the pager. (check-in: b9eccef7 user: drh tags: trunk) | |
| 16:11 | Update dbfuzz2 to set a maximum database size of 100MiB by default, but with the new --max-db-size N option to change that limit. (check-in: 21d6bb78 user: drh tags: trunk) | |
| 16:06 | Enhancements to deserialize: (1) Add the SQLITE_FCNTL_SIZE_LIMIT file control to set a maximum size for an in-memory database, defaulting to SQLITE_MEMDB_DEFAULT_MAXSIZE or 1GiB. (2) Honor the SQLITE_DESERIALIZE_READONLY flag. (3) Enhance the TCL interface to support -maxsize N and -readonly BOOLEAN. (4) Add the --maxsize option to the ".open" command and on the command-line for the CLI. (check-in: 30f08d58 user: drh tags: trunk) | |
Changes
Changes to test/dbfuzz2.c.
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};
/* Output verbosity level. 0 means complete silence */
int eVerbosity = 0;
/* True to activate PRAGMA vdbe_debug=on */
static int bVdbeDebug = 0;
/* 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.
*/
int LLVMFuzzerTestOneInput(const uint8_t *aData, size_t nByte){
unsigned char *a;
sqlite3 *db;
int rc;
int i;
if( eVerbosity>=1 ){
printf("************** nByte=%d ***************\n", (int)nByte);
fflush(stdout);
}
if( sqlite3_initialize() ) return 0;
rc = sqlite3_open(0, &db);
................................................................................
if( rc ) return 1;
a = sqlite3_malloc64(nByte+1);
if( a==0 ) return 1;
memcpy(a, aData, nByte);
sqlite3_deserialize(db, "main", a, nByte, nByte,
SQLITE_DESERIALIZE_RESIZEABLE |
SQLITE_DESERIALIZE_FREEONCLOSE);
if( bVdbeDebug ){
sqlite3_exec(db, "PRAGMA vdbe_debug=ON", 0, 0, 0);
}
for(i=0; i<sizeof(azSql)/sizeof(azSql[0]); i++){
if( eVerbosity>=1 ){
printf("%s\n", azSql[i]);
fflush(stdout);
................................................................................
if( z[0]=='v' && (n = numberOfVChar(z))>0 ){
eVerbosity += n;
continue;
}
if( strcmp(z,"vdbe-debug")==0 ){
bVdbeDebug = 1;
continue;
}
if( strcmp(z,"max-stack")==0
|| strcmp(z,"max-data")==0
|| strcmp(z,"max-as")==0
){
struct rlimit x,y;
int resource = RLIMIT_STACK;
|
> > > > > > > > > > > > > > |
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}; /* Output verbosity level. 0 means complete silence */ 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. */ int LLVMFuzzerTestOneInput(const uint8_t *aData, size_t nByte){ unsigned char *a; sqlite3 *db; int rc; int i; sqlite3_int64 x; if( eVerbosity>=1 ){ printf("************** nByte=%d ***************\n", (int)nByte); fflush(stdout); } if( sqlite3_initialize() ) return 0; rc = sqlite3_open(0, &db); ................................................................................ if( rc ) return 1; a = sqlite3_malloc64(nByte+1); if( a==0 ) return 1; memcpy(a, aData, 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); } for(i=0; i<sizeof(azSql)/sizeof(azSql[0]); i++){ if( eVerbosity>=1 ){ printf("%s\n", azSql[i]); fflush(stdout); ................................................................................ if( z[0]=='v' && (n = numberOfVChar(z))>0 ){ eVerbosity += n; continue; } if( strcmp(z,"vdbe-debug")==0 ){ 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 ){ struct rlimit x,y; int resource = RLIMIT_STACK; |