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add null pointer check

This commit is contained in:
dapan1121 2021-06-11 16:16:05 +08:00
parent 096fadd75e
commit 76c2993e90
1 changed files with 5 additions and 0 deletions
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5
src/client/src/tscPrepare.c
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@ -1462,6 +1462,11 @@ int taos_stmt_prepare(TAOS_STMT* stmt, const char* sql, unsigned long length) {
STMT_RET(TSDB_CODE_TSC_DISCONNECTED); STMT_RET(TSDB_CODE_TSC_DISCONNECTED);
} }
if (sql == NULL) {
tscError("sql is NULL");
STMT_RET(invalidOperationMsg(tscGetErrorMsgPayload(&pStmt->pSql->cmd), "sql is NULL"));
}
if (pStmt->last != STMT_INIT) { if (pStmt->last != STMT_INIT) {
tscError("prepare status error, last:%d", pStmt->last); tscError("prepare status error, last:%d", pStmt->last);
STMT_RET(invalidOperationMsg(tscGetErrorMsgPayload(&pStmt->pSql->cmd), "prepare status error")); STMT_RET(invalidOperationMsg(tscGetErrorMsgPayload(&pStmt->pSql->cmd), "prepare status error"));