Listing 3: piostruct.h

struct attrparms {          /* attribute parameter input to piogetvals() */
char *name;             /* two-character attribute name (null terminated) */
int  datatype;          /* date type of the attribute */
#define VAR_INT   1         /* variable integer */
#define VAR_STR   2         /* variable string */
struct lktable *lktab;  /* pointer to lookup table (if NULL, use  atoi()) */
union dtypes            /* ptr to where piogetvals() is to store data ptr */
{
struct str_info *sinfo; /* pointer to pointer to str_info structure */
int  *addr;             /* pointer to pointer to integer */
} *types;
};

struct str_info {       /* string information */
char *ptr;          /* pointer to string (string may contain nulls) */
int  len;           /* current length of string */
};

struct lktable {        /* string-to-integer lookup table */
char *str;          /* pointer to string value */
int  value;         /* resulting integer value */
};
/* End of File */