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Fix an issue with sha3_query() when the first argument contains blank

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SQL statements.

FossilOrigin-Name: 24baab9a9faab50c26d7167821031cd66aaf784baefbc0f92354ae54ac43a714
This commit is contained in:
drh
2021-01-08 19:53:18 +00:00
parent 3a5e975947
commit 1242c0ccf4
3 changed files with 13 additions and 11 deletions
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8
ext/misc/shathree.c
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@ -624,9 +624,11 @@ 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) ){