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Overview
| Comment: | Improvements to the -fsanitize=fuzzer based database file fuzzer. (Cherrypick from the rubust-against-damaged-db branch.) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
3cc01a0eaf54e3d5adf206825cfcab15 |
| User & Date: | drh 2018-10-30 15:20:35 |
Context
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2018-10-30
| ||
| 15:31 | Modify the CLI so that the --deserialize option is only available if it is compiled with SQLITE_ENABLE_DESERIALIZE. DESERIALIZE is now off by default for the main.mk makefile, but on for Makefile.in and Makefile.msc. (check-in: 90b2a684 user: drh tags: trunk) | |
| 15:20 | Improvements to the -fsanitize=fuzzer based database file fuzzer. (Cherrypick from the rubust-against-damaged-db branch.) (check-in: 3cc01a0e user: drh tags: trunk) | |
| 14:36 | In the CLI, when opening a file that begins with the normal SQLite prefix, open the file as a normal database even if it has a ZIP for AppendVFS record at the end. (check-in: 7989bbda user: drh tags: trunk) | |
| 00:06 | Improvements to the -fsanitize=fuzzer based database file fuzzer. (Closed-Leaf check-in: 585c94db user: drh tags: robust-against-damaged-db) | |
Changes
Changes to test/dbfuzz2.c.
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int rc;
int i;
if( eVerbosity>=1 ){
printf("************** nByte=%d ***************\n", (int)nByte);
fflush(stdout);
}
rc = sqlite3_open(":memory:", &db);
if( rc ) return 1;
a = sqlite3_malloc64(nByte);
if( a==0 ) return 1;
memcpy(a, aData, nByte);
sqlite3_deserialize(db, "main", a, nByte, nByte,
SQLITE_DESERIALIZE_RESIZEABLE |
SQLITE_DESERIALIZE_FREEONCLOSE);
for(i=0; i<sizeof(azSql)/sizeof(azSql[0]); i++){
if( eVerbosity>=1 ){
printf("%s\n", azSql[i]);
fflush(stdout);
}
sqlite3_exec(db, azSql[i], 0, 0, 0);
}
sqlite3_close(db);
if( sqlite3_memory_used()!=0 ){
fprintf(stderr,"Memory leak: %lld bytes\n", sqlite3_memory_used());
exit(1);
}
return 0;
}
/* libFuzzer invokes this routine once when the executable starts, to
** process the command-line arguments.
|
| | | > > > > > > | > |
74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 |
int rc;
int i;
if( eVerbosity>=1 ){
printf("************** nByte=%d ***************\n", (int)nByte);
fflush(stdout);
}
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);
for(i=0; i<sizeof(azSql)/sizeof(azSql[0]); i++){
if( eVerbosity>=1 ){
printf("%s\n", azSql[i]);
fflush(stdout);
}
sqlite3_exec(db, azSql[i], 0, 0, 0);
}
rc = sqlite3_close(db);
if( rc!=SQLITE_OK ){
fprintf(stdout, "sqlite3_close() returns %d\n", rc);
}
if( sqlite3_memory_used()!=0 ){
int nAlloc = 0;
int nNotUsed = 0;
sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &nAlloc, &nNotUsed, 0);
fprintf(stderr,"Memory leak: %lld bytes in %d allocations\n",
sqlite3_memory_used(), nAlloc);
exit(1);
}
return 0;
}
/* libFuzzer invokes this routine once when the executable starts, to
** process the command-line arguments.
|