Fix agent mismatch in database when selecting agents with a mask

[vikman90]

Related issue
#2443

Description

The agent-info files follow this pattern:

queue/agent-info/$name-$ip

The database module splits the name of the file into two strings: the name and the IP. Then, it finds the agent in the DB using both parameters. This does not work if the agent was registered with an IP including a netmask:

• The registered_ip field includes the netmask.
• The file path will never include that, because the slask / is not permitted in file paths.

That prevents the module from finding the agent.

Solution

Make the BD query match either the exact IP parameter or that IP plus /_%. That means the regex /.+. This should not produce a name conflict since the name of the agent does not allow slashes (/).

Output

This fix just prevents the database module from producing debug logs.

agent_control should produce an output like this with this patch applied:

$ agent_control -l

Wazuh agent_control. List of available agents:
   ID: 000, Name: stretch64 (server), IP: 127.0.0.1, Active/Local
   ID: 001, Name: centos, IP: 192.168.33.0/24, Active

Tests

• Compilation without warnings in every supported platform
  • Linux
  • Windows
  • MAC OS X. It fails [The manager won't compile Python on macOS #3338]
• Source installation
• Package installation
• Source upgrade
• Package upgrade
• Review logs syntax and correct language