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Overview
| Comment: | Set a reasonable limit on the number of opcodes in a prepared statement for ossfuzz.c. This should prevent timeouts in OSS-Fuzz when it generates totally unreasonable queries. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
f74899ed2c78019abb406432a74dcd42 |
| User & Date: | drh 2017-03-17 22:51:28 |
Context
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2017-03-17
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| 23:08 | Fix an error in the newly revised documentation for SQLITE_LIMIT_VDBE_OP. No changes to code. check-in: f4cf8635 user: drh tags: trunk | |
| 22:51 | Set a reasonable limit on the number of opcodes in a prepared statement for ossfuzz.c. This should prevent timeouts in OSS-Fuzz when it generates totally unreasonable queries. check-in: f74899ed user: drh tags: trunk | |
| 22:50 | Begin enforcing the SQLITE_LIMIT_VDBE_OP. The documentation warned that this day might come. check-in: ef591461 user: drh tags: trunk | |
Changes
Changes to test/ossfuzz.c.
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** (which will block further processing) if more than 10 seconds have ** elapsed since the start of the test. */ cx.iLastCb = timeOfDay(); cx.iCutoffTime = cx.iLastCb + 10000; /* Now + 10 seconds */ sqlite3_progress_handler(cx.db, 10, progress_handler, (void*)&cx); #endif /* Bit 1 of the selector enables foreign key constraints */ sqlite3_db_config(cx.db, SQLITE_DBCONFIG_ENABLE_FKEY, uSelector&1, &rc); uSelector >>= 1; /* Remaining bits of the selector determine a limit on the number of ** output rows */ |
> > > |
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** (which will block further processing) if more than 10 seconds have ** elapsed since the start of the test. */ cx.iLastCb = timeOfDay(); cx.iCutoffTime = cx.iLastCb + 10000; /* Now + 10 seconds */ 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); /* Bit 1 of the selector enables foreign key constraints */ sqlite3_db_config(cx.db, SQLITE_DBCONFIG_ENABLE_FKEY, uSelector&1, &rc); uSelector >>= 1; /* Remaining bits of the selector determine a limit on the number of ** output rows */ |