minix3/net/inet/queryparam.h

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2020-02-21 00:59:27 +05:30
/* queryparam.h - query program parameters Author: Kees J. Bot
* 22 Apr 1994
*/
#ifndef _MINIX__QUERYPARAM_H
#define _MINIX__QUERYPARAM_H
typedef size_t _mnx_size_t;
struct export_param_list {
char *name; /* "variable", "[", ".field", or NULL. */
void *offset; /* Address of a variable or field offset. */
size_t size; /* Size of the resulting object. */
};
struct export_params {
struct export_param_list *list; /* List of exported parameters. */
struct export_params *next; /* Link several sets of parameters. */
};
#ifdef __STDC__
#define qp_stringize(var) (char *) #var
#define qp_dotstringize(var) "." (char *) #var
#else
#define qp_stringize(var) "var"
#define qp_dotstringize(var) ".var"
#endif
#define QP_VARIABLE(var) { qp_stringize(var), &(var), sizeof(var) }
#define QP_ARRAY(var) { (char *) "[", 0, sizeof((var)[0]) }
#define QP_VECTOR(var,ptr,len) { qp_stringize(var), &(ptr), -1 },\
{ (char *) "[", &(len), sizeof(*(ptr)) }
#define QP_FIELD(field, type) { qp_dotstringize(field), \
(void *)offsetof(type, field), \
sizeof(((type *)0)->field) }
#define QP_END() { 0, 0, 0 }
void qp_export(struct export_params *_ex_params);
int queryparam(int (*_qgetc) (void), void **_paddress, _mnx_size_t
*_psize);
_mnx_size_t paramvalue(char **_value, void *_address, _mnx_size_t
_size);
#endif /* _MINIX__QUERYPARAM_H */
/* $PchId: queryparam.h,v 1.1 2005/06/28 14:31:26 philip Exp $ */