#1370 Updated nsDebug to handle nsDebugOutputAll

[Anders Wallin]

Updated nsDebug to handle nsDebugOutputAll should enable trace printout of all tokens
This solves https://sourceforge.net/p/net-snmp/bugs/2873/

[Bart Van Assche]

From NET-SNMP-AGENT-MIB.txt:

nsDebugOutputAll       OBJECT-TYPE
    SYNTAX      TruthValue
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
      "Whether the agent is configured to display all debugging output
       rather than filtering on individual debug tokens.  Nothing will
       be generated unless nsDebugEnabled is also true(1)"

Is this patch such that all debug tokens are only enabled if nsDebugEnabled has been set?

[Anders Wallin]

The code implements the simple logic;
nsDebugEnabled==false & nsDebugOutputAll ==true => NO logging
nsDebugEnabled==true & nsDebugOutputAll==true => Log ALL debug messages
nsDebugEnabled==true & nsDebugOutputAll ==false => Logging tokens set messages

But if you interpretate the DESCRIPTION that it's dependent on the order of setting nsDebugEnabled and nsDebugOutputAll, then it's not. e.g
This order will then not turn on logging
1. Unset nsDebugEnabled
2. Set nsDebugOutputAll
3. Set nsDebugEnabled

While this will turn on logging
1. Set nsDebugEnabled
2. Set nsDebugOutputAll