// SPDX-License-Identifier: GPL-2.0#define IN_BOOT_STRING_C 1#include <linux/ctype.h>#include <linux/kernel.h>#include <linux/errno.h>#undef CONFIG_KASAN#undef CONFIG_KASAN_GENERIC#undef CONFIG_KMSAN#include "../lib/string.c"/* * Duplicate some functions from the common lib/string.c * instead of fully including it. */int strncmp(const char *cs, const char *ct, size_t count){ unsigned char c1, c2; while (count) { c1 = *cs++; c2 = *ct++; if (c1 != c2) return c1 < c2 ? -1 : 1; if (!c1) break; count--; } return 0;}ssize_t sized_strscpy(char *dst, const char *src, size_t count){ size_t len; if (count == 0) return -E2BIG; len = strnlen(src, count - 1); memcpy(dst, src, len); dst[len] = '\0'; return src[len] ? -E2BIG : len;}void *memset64(uint64_t *s, uint64_t v, size_t count){ return __memset64(s, v, count * sizeof(v));}char *skip_spaces(const char *str){ while (isspace(*str)) ++str; return (char *)str;}char *strim(char *s){ size_t size; char *end; size = strlen(s); if (!size) return s; end = s + size - 1; while (end >= s && isspace(*end)) end--; *(end + 1) = '\0'; return skip_spaces(s);}/* Works only for digits and letters, but small and fast */#define TOLOWER(x) ((x) | 0x20)static unsigned int simple_guess_base(const char *cp){ if (cp[0] == '0') { if (TOLOWER(cp[1]) == 'x' && isxdigit(cp[2])) return 16; else return 8; } else { return 10; }}/** * simple_strtoull - convert a string to an unsigned long long * @cp: The start of the string * @endp: A pointer to the end of the parsed string will be placed here * @base: The number base to use */unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base){ unsigned long long result = 0; if (!base) base = simple_guess_base(cp); if (base == 16 && cp[0] == '0' && TOLOWER(cp[1]) == 'x') cp += 2; while (isxdigit(*cp)) { unsigned int value; value = isdigit(*cp) ? *cp - '0' : TOLOWER(*cp) - 'a' + 10; if (value >= base) break; result = result * base + value; cp++; } if (endp) *endp = (char *)cp; return result;}long simple_strtol(const char *cp, char **endp, unsigned int base){ if (*cp == '-') return -simple_strtoull(cp + 1, endp, base); return simple_strtoull(cp, endp, base);}int kstrtobool(const char *s, bool *res){ if (!s) return -EINVAL; switch (s[0]) { case 'y': case 'Y': case '1': *res = true; return 0; case 'n': case 'N': case '0': *res = false; return 0; case 'o': case 'O': switch (s[1]) { case 'n': case 'N': *res = true; return 0; case 'f': case 'F': *res = false; return 0; default: break; } default: break; } return -EINVAL;}
// SPDX-License-Identifier: GPL-2.0
#define IN_BOOT_STRING_C 1
#include <linux/ctype.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#undef CONFIG_KASAN
#undef CONFIG_KASAN_GENERIC
#undef CONFIG_KMSAN
#include "../lib/string.c"
/*
* Duplicate some functions from the common lib/string.c
* instead of fully including it.
*/
int strncmp(const char *cs, const char *ct, size_t count)
{
unsigned char c1, c2;
while (count) {
c1 = *cs++;
c2 = *ct++;
if (c1 != c2)
return c1 < c2 ? -1 : 1;
if (!c1)
break;
count--;
}
return 0;
}
ssize_t sized_strscpy(char *dst, const char *src, size_t count)
{
size_t len;
if (count == 0)
return -E2BIG;
len = strnlen(src, count - 1);
memcpy(dst, src, len);
dst[len] = '\0';
return src[len] ? -E2BIG : len;
}
void *memset64(uint64_t *s, uint64_t v, size_t count)
{
return __memset64(s, v, count * sizeof(v));
}
char *skip_spaces(const char *str)
{
while (isspace(*str))
++str;
return (char *)str;
}
char *strim(char *s)
{
size_t size;
char *end;
size = strlen(s);
if (!size)
return s;
end = s + size - 1;
while (end >= s && isspace(*end))
end--;
*(end + 1) = '\0';
return skip_spaces(s);
}
/* Works only for digits and letters, but small and fast */
#define TOLOWER(x) ((x) | 0x20)
static unsigned int simple_guess_base(const char *cp)
{
if (cp[0] == '0') {
if (TOLOWER(cp[1]) == 'x' && isxdigit(cp[2]))
return 16;
else
return 8;
} else {
return 10;
}
}
/**
* simple_strtoull - convert a string to an unsigned long long
* @cp: The start of the string
* @endp: A pointer to the end of the parsed string will be placed here
* @base: The number base to use
*/
unsigned long long simple_strtoull(const char *cp, char **endp,
unsigned int base)
{
unsigned long long result = 0;
if (!base)
base = simple_guess_base(cp);
if (base == 16 && cp[0] == '0' && TOLOWER(cp[1]) == 'x')
cp += 2;
while (isxdigit(*cp)) {
unsigned int value;
value = isdigit(*cp) ? *cp - '0' : TOLOWER(*cp) - 'a' + 10;
if (value >= base)
break;
result = result * base + value;
cp++;
}
if (endp)
*endp = (char *)cp;
return result;
}
long simple_strtol(const char *cp, char **endp, unsigned int base)
{
if (*cp == '-')
return -simple_strtoull(cp + 1, endp, base);
return simple_strtoull(cp, endp, base);
}
int kstrtobool(const char *s, bool *res)
{
if (!s)
return -EINVAL;
switch (s[0]) {
case 'y':
case 'Y':
case '1':
*res = true;
return 0;
case 'n':
case 'N':
case '0':
*res = false;
return 0;
case 'o':
case 'O':
switch (s[1]) {
case 'n':
case 'N':
*res = true;
return 0;
case 'f':
case 'F':
*res = false;
return 0;
default:
break;
}
default:
break;
}
return -EINVAL;
}