freebsd-dev/sbin/geom/misc/subr.h
Marcel Moolenaar 59458baf2b Add two support functions:
o  gctl_delete_param() -- intended for parameters that are consumed
   by geom(8) itself and which should not be passed to the kernel.
o  gctl_has_param() -- intended to check if optional parameters are
   present.

Both are needed by gpart(8) to process the optional parameter for
writing bootcode to a partition (as part of the bootcode verb).
However, the kernel is itself not involved in this matter and the
parameter needs to be removed from the request destined for the
kernel.
2008-06-06 22:44:03 +00:00

54 lines
2.4 KiB
C

/*-
* Copyright (c) 2004 Pawel Jakub Dawidek <pjd@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _SUBR_H_
#define _SUBR_H_
#include <stdint.h>
unsigned g_lcm(unsigned a, unsigned b);
uint32_t bitcount32(uint32_t x);
off_t g_get_mediasize(const char *name);
unsigned g_get_sectorsize(const char *name);
int g_metadata_read(const char *name, u_char *md, size_t size,
const char *magic);
int g_metadata_store(const char *name, u_char *md, size_t size);
int g_metadata_clear(const char *name, const char *magic);
void gctl_error(struct gctl_req *req, const char *error, ...) __printflike(2, 3);
int gctl_get_int(struct gctl_req *req, const char *pfmt, ...) __printflike(2, 3);
intmax_t gctl_get_intmax(struct gctl_req *req, const char *pfmt, ...) __printflike(2, 3);
const char *gctl_get_ascii(struct gctl_req *req, const char *pfmt, ...) __printflike(2, 3);
int gctl_change_param(struct gctl_req *req, const char *name, int len,
const void *value);
int gctl_delete_param(struct gctl_req *req, const char *name);
int gctl_has_param(struct gctl_req *req, const char *name);
#endif /* !_SUBR_H_ */