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add sanity check to zunionInterBlockClientOnSwappedKeys, as the number of keys used is provided as argument to the function

This commit is contained in:
Pieter Noordhuis 2010-05-07 12:59:34 +02:00
parent ca1788b560
commit 739ba0d211
1 changed files with 4 additions and 2 deletions
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6
redis.c
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@ -9562,13 +9562,15 @@ static void waitForMultipleSwappedKeys(redisClient *c, struct redisCommand *cmd,
}
}
/* Preload keys needed for the ZUNION and ZINTER commands. */
/* Preload keys needed for the ZUNION and ZINTER commands.
* Note that the number of keys to preload is user-defined, so we need to
* apply a sanity check against argc. */
static void zunionInterBlockClientOnSwappedKeys(redisClient *c, struct redisCommand *cmd, int argc, robj **argv) {
int i, num;
REDIS_NOTUSED(cmd);
REDIS_NOTUSED(argc);
num = atoi(argv[2]->ptr);
if (num > (argc-3)) return;
for (i = 0; i < num; i++) {
waitForSwappedKey(c,argv[3+i]);
}