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Make dbid range check for SWAPDB command consistent with SELECT, MOVE, and COPY. (#8555) 

DB ID used to be parsed as a long for SWAPDB command, now
make it into an int to be consistent with other commands that parses
the DB ID argument like SELECT, MOVE, COPY. See #8085

The implication is that the error message when the provided db index
is greater than 4M changes slightly.
This commit is contained in:
Qu Chen 2021-02-28 21:54:52 -08:00 committed by GitHub
parent 18ff8cd1fb
commit a66814fd7a
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1 changed files with 4 additions and 4 deletions
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8
src/db.c
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@ -1315,7 +1315,7 @@ void scanDatabaseForReadyLists(redisDb *db) {
*
* Returns C_ERR if at least one of the DB ids are out of range, otherwise
* C_OK is returned. */
int dbSwapDatabases(long id1, long id2) {
int dbSwapDatabases(int id1, int id2) {
if (id1 < 0 || id1 >= server.dbnum ||
id2 < 0 || id2 >= server.dbnum) return C_ERR;
if (id1 == id2) return C_OK;
@ -1356,7 +1356,7 @@ int dbSwapDatabases(long id1, long id2) {
/* SWAPDB db1 db2 */
void swapdbCommand(client *c) {
long id1, id2;
int id1, id2;
/* Not allowed in cluster mode: we have just DB 0 there. */
if (server.cluster_enabled) {
@ -1365,11 +1365,11 @@ void swapdbCommand(client *c) {
}
/* Get the two DBs indexes. */
if (getLongFromObjectOrReply(c, c->argv[1], &id1,
if (getIntFromObjectOrReply(c, c->argv[1], &id1,
"invalid first DB index") != C_OK)
return;
if (getLongFromObjectOrReply(c, c->argv[2], &id2,
if (getIntFromObjectOrReply(c, c->argv[2], &id2,
"invalid second DB index") != C_OK)
return;