mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-26 11:47:31 +00:00
c36e54bb32
Change consumers to include those files from sys. Add duplicated files to ObsoleteFiles. Approved by: pjd (mentor)
87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
/*-
|
|
* Copyright (c) 2013 The FreeBSD Foundation
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by Pawel Jakub Dawidek under sponsorship from
|
|
* the FreeBSD Foundation.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/nv.h>
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
|
|
#include "libcapsicum.h"
|
|
#include "libcapsicum_sysctl.h"
|
|
|
|
int
|
|
cap_sysctlbyname(cap_channel_t *chan, const char *name, void *oldp,
|
|
size_t *oldlenp, const void *newp, size_t newlen)
|
|
{
|
|
nvlist_t *nvl;
|
|
const uint8_t *retoldp;
|
|
uint8_t operation;
|
|
size_t oldlen;
|
|
|
|
operation = 0;
|
|
if (oldp != NULL)
|
|
operation |= CAP_SYSCTL_READ;
|
|
if (newp != NULL)
|
|
operation |= CAP_SYSCTL_WRITE;
|
|
|
|
nvl = nvlist_create(0);
|
|
nvlist_add_string(nvl, "cmd", "sysctl");
|
|
nvlist_add_string(nvl, "name", name);
|
|
nvlist_add_number(nvl, "operation", (uint64_t)operation);
|
|
if (oldp == NULL && oldlenp != NULL)
|
|
nvlist_add_null(nvl, "justsize");
|
|
else if (oldlenp != NULL)
|
|
nvlist_add_number(nvl, "oldlen", (uint64_t)*oldlenp);
|
|
if (newp != NULL)
|
|
nvlist_add_binary(nvl, "newp", newp, newlen);
|
|
nvl = cap_xfer_nvlist(chan, nvl, 0);
|
|
if (nvl == NULL)
|
|
return (-1);
|
|
if (nvlist_get_number(nvl, "error") != 0) {
|
|
errno = (int)nvlist_get_number(nvl, "error");
|
|
nvlist_destroy(nvl);
|
|
return (-1);
|
|
}
|
|
|
|
if (oldp == NULL && oldlenp != NULL) {
|
|
*oldlenp = (size_t)nvlist_get_number(nvl, "oldlen");
|
|
} else if (oldp != NULL) {
|
|
retoldp = nvlist_get_binary(nvl, "oldp", &oldlen);
|
|
memcpy(oldp, retoldp, oldlen);
|
|
if (oldlenp != NULL)
|
|
*oldlenp = oldlen;
|
|
}
|
|
nvlist_destroy(nvl);
|
|
|
|
return (0);
|
|
}
|