Warning: Can't synchronize with the repository (Unsupported version control system "svn": "/usr/lib64/libsvn_ra_neon-1.so.0: undefined symbol: svn_compat_wrap_file_rev_handler" ). Look in the Trac log for more information. 
typedef struct _v3_user {
    uint16_t id;
    uint16_t channel;
    uint16_t bitfield;     // see below
    uint16_t rank_id;  
    char *name;
    char *phonetic;
    char *comment;
    char *url;
    char *integration_text;
    uint8_t  is_transmitting;
    uint8_t  accept_pages;
    uint8_t  accept_u2u;
    uint8_t  accept_chat;
    uint8_t  allow_recording;
    uint8_t  guest;
    void     *next;        // used internally, will always be NULL for v3_get_user()
    uint16_t real_user_id; // used for phantom users
} v3_user;

bitfield

ID Description
0x0 object is another client
0x1 object is the local client
0x2 object is lobby
0x100 comment is sent silently
0x400 user is a guest
0x800 unknown but known to exist