freebsd-skq/sbin/nvmecontrol/nc_util.c
Warner Losh e505b7eced Make it possible to use print_controller from another program
Rename print_controller to nvme_print_controller. Put it in its
own file for easy inclusion. Move util.c to be nc_util.c to not
conflict with camcontrol. add nvecontrol_ext.h to define shared
interfaces.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D15371
2018-06-13 22:00:02 +00:00

60 lines
1.8 KiB
C

/*-
* Copyright (c) 2017 Netflix, Inc
* 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 AUTHOR 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/endian.h>
#include "nvmecontrol.h"
char *
uint128_to_str(uint128_t u, char *buf, size_t buflen)
{
char *end = buf + buflen - 1;
*end-- = '\0';
if (u == 0)
*end-- = '0';
while (u && end >= buf) {
*end-- = u % 10 + '0';
u /= 10;
}
end++;
if (u != 0)
return NULL;
return end;
}
/* "Missing" from endian.h */
uint64_t
le48dec(const void *pp)
{
uint8_t const *p = (uint8_t const *)pp;
return (((uint64_t)le16dec(p + 4) << 32) | le32dec(p));
}