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Overview
Comment:Set a low limit on the length of strings and blobs in the OSSFuzz module, in an effort to avoid timeouts when the fuzzer does things like "randomblob(1e12)".
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SHA3-256: 119d1609fa415894fdd0aa19440ca1c658bd01910838a4cfadbe0e304b033bfd
User & Date: drh 2019-01-29 02:37:22.889
Context
2019-01-29
11:42
Fix a buffer overrun triggered by a merge operation on a corrupt fts5 database. (check-in: 7ee3cd5b2c user: dan tags: trunk)
02:37
Set a low limit on the length of strings and blobs in the OSSFuzz module, in an effort to avoid timeouts when the fuzzer does things like "randomblob(1e12)". (check-in: 119d1609fa user: drh tags: trunk)
2019-01-28
19:06
Fix the query planner so that it is able to use an index on a CAST expression. (check-in: 2c886f3d49 user: drh tags: trunk)
Changes
Side-by-Side Diff Ignore Whitespace Patch
Changes to test/ossfuzz.c.
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  cx.iCutoffTime = cx.iLastCb + 10000;  /* Now + 10 seconds */
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
  sqlite3_progress_handler(cx.db, 10, progress_handler, (void*)&cx);
#endif

  /* Set a limit on the maximum size of a prepared statement */
  sqlite3_limit(cx.db, SQLITE_LIMIT_VDBE_OP, 25000);

  /* Set a limit on the maximum length of a string or BLOB.  Without this
  ** limit, fuzzers will invoke randomblob(N) for a large N, and the process
  ** will timeout trying to generate the huge blob */
  sqlite3_limit(cx.db, SQLITE_LIMIT_LENGTH, 50000);

  /* Bit 1 of the selector enables foreign key constraints */
  sqlite3_db_config(cx.db, SQLITE_DBCONFIG_ENABLE_FKEY, uSelector&1, &rc);
  uSelector >>= 1;

  /* Do not allow debugging pragma statements that might cause excess output */
  sqlite3_set_authorizer(cx.db, block_debug_pragmas, 0);
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