/usr/src/lttng-modules-2.7.1/wrapper/kstrtox.h is in lttng-modules-dkms 2.7.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | #ifndef _LTTNG_WRAPPER_KSTRTOX_H
#define _LTTNG_WRAPPER_KSTRTOX_H
/*
* wrapper/kstrtox.h
*
* Copyright (C) 2015 Michael Jeanson <mjeanson@efficios.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; only
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/version.h>
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0))
/* Excludes final \0. */
#define LTTNG_MAX_UINT_CHAR 10
static inline
int __must_check lttng_kstrtouint_from_user(const char __user *ubuf,
size_t count, unsigned int base, unsigned int *res)
{
unsigned int _res;
char kbuf[LTTNG_MAX_UINT_CHAR + 1], *endptr;
memset(kbuf, 0, sizeof(kbuf));
if (copy_from_user(kbuf, ubuf, min_t(size_t, LTTNG_MAX_UINT_CHAR, count)))
return -EFAULT;
_res = simple_strtoul(kbuf, &endptr, base);
if (!endptr)
return -EINVAL;
*res = _res;
return 0;
}
#else
static inline
int __must_check lttng_kstrtouint_from_user(const char __user *ubuf,
size_t count, unsigned int base, unsigned int *res)
{
return kstrtouint_from_user(ubuf, count, base, res);
}
#endif
#endif /* _LTTNG_WRAPPER_KSTRTOX_H */
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