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| author | drh <> | 2021-01-19 20:38:13 +0000 |
|---|---|---|
| committer | drh <> | 2021-01-19 20:38:13 +0000 |
| commit | b08dbd0f28db45dbf2a6ef7d7ab76d415b30f2f3 (patch) | |
| tree | 3034941369fb0d74c961acf7a12e7932db0cfb62 /ext/misc/shathree.c | |
| parent | 00a0b135ecc6129260a0ca1d1ee951173dfb1c48 (diff) | |
| download | sqlite-b08dbd0f28db45dbf2a6ef7d7ab76d415b30f2f3.tar.gz sqlite-b08dbd0f28db45dbf2a6ef7d7ab76d415b30f2f3.zip | |
Fix an issue with sha3_query() when the first argument contains blank
SQL statements.
FossilOrigin-Name: a1a7a5f238fcfdcd56faba063e381258c9e2944d9b02b31d402a4207a607fc1c
Diffstat (limited to 'ext/misc/shathree.c')
| -rw-r--r-- | ext/misc/shathree.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/ext/misc/shathree.c b/ext/misc/shathree.c index 56eba564c..56a5584f3 100644 --- a/ext/misc/shathree.c +++ b/ext/misc/shathree.c @@ -621,9 +621,11 @@ static void sha3QueryFunc( } nCol = sqlite3_column_count(pStmt); z = sqlite3_sql(pStmt); - n = (int)strlen(z); - hash_step_vformat(&cx,"S%d:",n); - SHA3Update(&cx,(unsigned char*)z,n); + if( z ){ + n = (int)strlen(z); + hash_step_vformat(&cx,"S%d:",n); + SHA3Update(&cx,(unsigned char*)z,n); + } /* Compute a hash over the result of the query */ while( SQLITE_ROW==sqlite3_step(pStmt) ){ |