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Streams: XTRIM will return an error if MAXLEN with a count < 0

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This commit is contained in:
zhaozhao.zz 2018-07-18 00:12:24 +08:00
parent 20c6a7fe2c
commit da6b7516f1
1 changed files with 6 additions and 1 deletions
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7
src/t_stream.c
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@ -2192,7 +2192,7 @@ void xtrimCommand(client *c) {
/* Argument parsing. */ /* Argument parsing. */
int trim_strategy = TRIM_STRATEGY_NONE; int trim_strategy = TRIM_STRATEGY_NONE;
long long maxlen = 0; /* 0 means no maximum length. */ long long maxlen = -1; /* If left to -1 no trimming is performed. */
int approx_maxlen = 0; /* If 1 only delete whole radix tree nodes, so int approx_maxlen = 0; /* If 1 only delete whole radix tree nodes, so
the maxium length is not applied verbatim. */ the maxium length is not applied verbatim. */
@ -2211,6 +2211,11 @@ void xtrimCommand(client *c) {
} }
if (getLongLongFromObjectOrReply(c,c->argv[i+1],&maxlen,NULL) if (getLongLongFromObjectOrReply(c,c->argv[i+1],&maxlen,NULL)
!= C_OK) return; != C_OK) return;
if (maxlen < 0) {
addReplyError(c,"The MAXLEN argument must be >= 0.");
return;
}
i++; i++;
} else { } else {
addReply(c,shared.syntaxerr); addReply(c,shared.syntaxerr);