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Add support for nan in RESP3 double (#1133)

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filipe oliveira 2022-11-14 16:55:52 +00:00 committed by GitHub
parent 991b0b0b31
commit f0bdf8405b
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2 changed files with 8 additions and 5 deletions
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6
read.c
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@ -303,11 +303,13 @@ static int processLineItem(redisReader *r) {
d = INFINITY; /* Positive infinite. */
} else if (len == 4 && strcasecmp(buf,"-inf") == 0) {
d = -INFINITY; /* Negative infinite. */
} else if (len == 3 && strcasecmp(buf,"nan") == 0) {
d = NAN; /* nan. */
} else {
d = strtod((char*)buf,&eptr);
/* RESP3 only allows "inf", "-inf", and finite values, while
* strtod() allows other variations on infinity, NaN,
* etc. We explicity handle our two allowed infinite cases
* strtod() allows other variations on infinity,
* etc. We explicity handle our two allowed infinite cases and NaN
* above, so strtod() should only result in finite values. */
if (buf[0] == '\0' || eptr != &buf[len] || !isfinite(d)) {
__redisReaderSetError(r,REDIS_ERR_PROTOCOL,

7
test.c
View File

@ -674,12 +674,13 @@ static void test_reply_reader(void) {
freeReplyObject(reply);
redisReaderFree(reader);
test("Set error when RESP3 double is NaN: ");
test("Correctly parses RESP3 double NaN: ");
reader = redisReaderCreate();
redisReaderFeed(reader, ",nan\r\n",6);
ret = redisReaderGetReply(reader,&reply);
test_cond(ret == REDIS_ERR &&
strcasecmp(reader->errstr,"Bad double value") == 0);
test_cond(ret == REDIS_OK &&
((redisReply*)reply)->type == REDIS_REPLY_DOUBLE &&
isnan(((redisReply*)reply)->dval));
freeReplyObject(reply);
redisReaderFree(reader);