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Overview
| Comment: | Ensure that the variable-length integer decoder in FTS3 never tries to left-shift a negative number. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: | 10ffc1fe006a1766ff2f1ffc6129786a |
| User & Date: | drh 2019-01-17 03:43:38 |
Context
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2019-01-17
| ||
| 04:40 | Fix a corner-case for the logic that cause an insert of a NULL into an INTEGER PRIMARY KEY column to be converted into a valid integer key, when the NULL results from a CASE expression that lacks an ELSE clause. check-in: 9a425051 user: drh tags: trunk | |
| 03:43 | Ensure that the variable-length integer decoder in FTS3 never tries to left-shift a negative number. check-in: 10ffc1fe user: drh tags: trunk | |
| 01:06 | Fix a failure in sqlite3ExprCompare() check-in: 835e2cc5 user: drh tags: trunk | |
Changes
Changes to ext/fts3/fts3.c.
334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 |
}while( vu!=0 );
q[-1] &= 0x7f; /* turn off high bit in final byte */
assert( q - (unsigned char *)p <= FTS3_VARINT_MAX );
return (int) (q - (unsigned char *)p);
}
#define GETVARINT_STEP(v, ptr, shift, mask1, mask2, var, ret) \
v = (v & mask1) | ( (*(ptr++)) << shift ); \
if( (v & mask2)==0 ){ var = v; return ret; }
#define GETVARINT_INIT(v, ptr, shift, mask1, mask2, var, ret) \
v = (*ptr++); \
if( (v & mask2)==0 ){ var = v; return ret; }
/*
** Read a 64-bit variable-length integer from memory starting at p[0].
|
| |
334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 |
}while( vu!=0 );
q[-1] &= 0x7f; /* turn off high bit in final byte */
assert( q - (unsigned char *)p <= FTS3_VARINT_MAX );
return (int) (q - (unsigned char *)p);
}
#define GETVARINT_STEP(v, ptr, shift, mask1, mask2, var, ret) \
v = (v & mask1) | ( (*(const unsigned char*)(ptr++)) << shift ); \
if( (v & mask2)==0 ){ var = v; return ret; }
#define GETVARINT_INIT(v, ptr, shift, mask1, mask2, var, ret) \
v = (*ptr++); \
if( (v & mask2)==0 ){ var = v; return ret; }
/*
** Read a 64-bit variable-length integer from memory starting at p[0].
|