/ 
Redis-Fast-0.30
River stage one • 7 direct dependents • 7 total dependents
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/ Redis::Fast::Sentinel
Security Advisories (1)
CVE-2021-32765 (2021-10-04)

Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable to integer overflow if provided maliciously crafted or corrupted `RESP` `mult-bulk` protocol data. When parsing `multi-bulk` (array-like) replies, hiredis fails to check if `count * sizeof(redisReply*)` can be represented in `SIZE_MAX`. If it can not, and the `calloc()` call doesn't itself make this check, it would result in a short allocation and subsequent buffer overflow. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible.

NAME

Redis::Fast::Sentinel - connect to a Sentinel instance

SYNOPSIS

my $sentinel = Redis::Fast::Sentinel->new( ... );
my $service_address = $sentinel->get_service_address('mymaster');
my @masters = $sentinel->get_masters;

DESCRIPTION

This is a subclass of the Redis::Fast module, specialized into connecting to a Sentinel instance. Inherits from the Redis::Fast package;

CONSTRUCTOR

new

See new in Redis::Fast. All parameters are supported, except sentinels and service, which are silently ignored.

METHODS

All the methods of the Redis::Fast package are supported, plus the additional following methods:

get_service_address

Takes the name of a service as parameter, and returns either void (empty list) if the master couldn't be found, the string 'IDONTKNOW' if the service is in the sentinel config but cannot be reached, or the string "$ip:$port" if the service were found.

get_masters

Returns a list of HashRefs representing all the master redis instances that this sentinel monitors.