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/*-
* Copyright (c) 2010 Isilon Systems, Inc.
* Copyright (c) 2010 iX Systems, Inc.
* Copyright (c) 2010 Panasas, Inc.
* Copyright (c) 2017-2018 Mellanox Technologies, Ltd.
* All rights reserved.
* Copyright (c) 2018 Johannes Lundberg <johalun0@gmail.com>
* Copyright (c) 2020-2022 The FreeBSD Foundation
* Copyright (c) 2021 Vladimir Kondratyev <wulf@FreeBSD.org>
* Copyright (c) 2023 Serenity Cyber Security, LLC
*
* Portions of this software were developed by Bjoern A. Zeeb and
* Emmanuel Vadot 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 unmodified, 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 ``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 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.
*/
#ifndef _LINUXKPI_LINUX_KSTRTOX_H_
#define _LINUXKPI_LINUX_KSTRTOX_H_
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/libkern.h>
#include <linux/compiler.h>
#include <linux/types.h>
#include <asm/uaccess.h>
static inline unsigned long long
simple_strtoull(const char *cp, char **endp, unsigned int base)
{
return (strtouq(cp, endp, base));
}
static inline long long
simple_strtoll(const char *cp, char **endp, unsigned int base)
{
return (strtoq(cp, endp, base));
}
static inline unsigned long
simple_strtoul(const char *cp, char **endp, unsigned int base)
{
return (strtoul(cp, endp, base));
}
static inline long
simple_strtol(const char *cp, char **endp, unsigned int base)
{
return (strtol(cp, endp, base));
}
static inline int
kstrtoul(const char *cp, unsigned int base, unsigned long *res)
{
char *end;
unsigned long temp;
temp = strtoul(cp, &end, base);
/* skip newline character, if any */
if (*end == '\n')
end++;
if (*cp == 0 || *end != 0)
return (-EINVAL);
*res = temp;
return (0);
}
static inline int
kstrtol(const char *cp, unsigned int base, long *res)
{
char *end;
long temp;
temp = strtol(cp, &end, base);
/* skip newline character, if any */
if (*end == '\n')
end++;
if (*cp == 0 || *end != 0)
return (-EINVAL);
*res = temp;
return (0);
}
static inline int
kstrtoint(const char *cp, unsigned int base, int *res)
{
char *end;
long temp;
temp = strtol(cp, &end, base);
/* skip newline character, if any */
if (*end == '\n')
end++;
if (*cp == 0 || *end != 0)
return (-EINVAL);
if (temp != (int)temp)
return (-ERANGE);
*res = (int)temp;
return (0);
}
static inline int
kstrtouint(const char *cp, unsigned int base, unsigned int *res)
{
char *end;
unsigned long temp;
temp = strtoul(cp, &end, base);
/* skip newline character, if any */
if (*end == '\n')
end++;
if (*cp == 0 || *end != 0)
return (-EINVAL);
if (temp != (unsigned int)temp)
return (-ERANGE);
*res = (unsigned int)temp;
return (0);
}
static inline int
kstrtou8(const char *cp, unsigned int base, uint8_t *res)
{
char *end;
unsigned long temp;
temp = strtoul(cp, &end, base);
/* skip newline character, if any */
if (*end == '\n')
end++;
if (*cp == 0 || *end != 0)
return (-EINVAL);
if (temp != (uint8_t)temp)
return (-ERANGE);
*res = (uint8_t)temp;
return (0);
}
static inline int
kstrtou16(const char *cp, unsigned int base, uint16_t *res)
{
char *end;
unsigned long temp;
temp = strtoul(cp, &end, base);
/* skip newline character, if any */
if (*end == '\n')
end++;
if (*cp == 0 || *end != 0)
return (-EINVAL);
if (temp != (uint16_t)temp)
return (-ERANGE);
*res = (uint16_t)temp;
return (0);
}
static inline int
kstrtou32(const char *cp, unsigned int base, uint32_t *res)
{
return (kstrtouint(cp, base, res));
}
static inline int
kstrtos32(const char *cp, unsigned int base, int32_t *res)
{
return (kstrtoint(cp, base, res));
}
static inline int
kstrtos64(const char *cp, unsigned int base, int64_t *res)
{
char *end;
quad_t temp;
temp = strtoq(cp, &end, base);
/* skip newline character, if any */
if (*end == '\n')
end++;
if (*cp == 0 || *end != 0)
return (-EINVAL);
*res = (int64_t)temp;
return (0);
}
static inline int
kstrtoll(const char *cp, unsigned int base, long long *res)
{
return (kstrtos64(cp, base, (int64_t *)res));
}
static inline int
kstrtou64(const char *cp, unsigned int base, uint64_t *res)
{
char *end;
u_quad_t temp;
temp = strtouq(cp, &end, base);
/* skip newline character, if any */
if (*end == '\n')
end++;
if (*cp == 0 || *end != 0)
return (-EINVAL);
*res = (uint64_t)temp;
return (0);
}
static inline int
kstrtoull(const char *cp, unsigned int base, unsigned long long *res)
{
return (kstrtou64(cp, base, (uint64_t *)res));
}
static inline int
kstrtobool(const char *s, bool *res)
{
if (s == NULL || *s == '\0')
return (-EINVAL);
if (strchr("eEtTyY1", s[0]) != NULL)
*res = true;
else if (strchr("dDfFnN0", s[0]) != NULL)
*res = false;
else if (strncasecmp("on", s, 2) == 0)
*res = true;
else if (strncasecmp("of", s, 2) == 0)
*res = false;
else
return (-EINVAL);
return (0);
}
static inline int
kstrtobool_from_user(const char __user *s, size_t count, bool *res)
{
char buf[8] = {};
if (count > (sizeof(buf) - 1))
count = (sizeof(buf) - 1);
if (copy_from_user(buf, s, count))
return (-EFAULT);
return (kstrtobool(buf, res));
}
static inline int
kstrtoint_from_user(const char __user *s, size_t count, unsigned int base,
int *p)
{
char buf[36] = {};
if (count > (sizeof(buf) - 1))
count = (sizeof(buf) - 1);
if (copy_from_user(buf, s, count))
return (-EFAULT);
return (kstrtoint(buf, base, p));
}
static inline int
kstrtouint_from_user(const char __user *s, size_t count, unsigned int base,
unsigned int *p)
{
char buf[36] = {};
if (count > (sizeof(buf) - 1))
count = (sizeof(buf) - 1);
if (copy_from_user(buf, s, count))
return (-EFAULT);
return (kstrtouint(buf, base, p));
}
static inline int
kstrtou32_from_user(const char __user *s, size_t count, unsigned int base,
unsigned int *p)
{
return (kstrtouint_from_user(s, count, base, p));
}
static inline int
kstrtou8_from_user(const char __user *s, size_t count, unsigned int base,
uint8_t *p)
{
char buf[8] = {};
if (count > (sizeof(buf) - 1))
count = (sizeof(buf) - 1);
if (copy_from_user(buf, s, count))
return (-EFAULT);
return (kstrtou8(buf, base, p));
}
#endif /* _LINUXKPI_LINUX_KSTRTOX_H_ */
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