I’ve been doing some coding with GSK, system SSL, and had problems getting the data to match.

There are some definitions and my code

typedef enum { 
    gskdb_rectype_unknown       = 0, 
    gskdb_rectype_keyPair       = 1, /* Request key pair */ 
    gskdb_rectype_certificate   = 2, /* Certificate */ 
    gskdb_rectype_certKey       = 3, /* Certificate with key */ 
    gskdb_rectype_maximum       = 32767 
} gskdb_record_type; 
typedef struct _gskdb_record { 
    gskdb_record_type           recordType; 
    ....
} gskdb_record; 
...
gskdb_record ccp;
    
printf("Length %i\n",sizeof(ccp .recordType));

It prints out a length of 4.

If I display the data in the control block, the value of ccp.recordType is 0x0003C000.

This had me scratching my head. It needed a trip to the shops, and lunch before I spotted the problem

In the options section of the compiler list it had

 *ENUMSIZE(INT)

This says treat all enums as integer. The default is enums(SMALL).

The smallest size of gskdb_record_type is 2 bytes, but I had specified use 4 bytes. The true value of the field is 0x003 (Certificate with key) rather than an undefined 0003c000!

I removed the -qenum=int from my compiler switches.

When I recompiled, and reran the program – it all worked, giving the result 3 -> certificate with key!