src/commonlib/bsd/string.c

/* SPDX-License-Identifier: BSD-3-Clause */

#include <commonlib/bsd/string.h>
#include <ctype.h>
#include <stddef.h>

size_t strlen(const char *str)
{
	const char *ptr = str;

	while (*ptr++)
		;
	return ptr - str - 1;
}

size_t strnlen(const char *str, size_t maxlen)
{
	const char *ptr = str;
	const char *end = str + maxlen + 1;

	while (*ptr++ && ptr < end)
		;
	return ptr - str - 1;
}

unsigned int skip_atoi(char **ptr)
{
	unsigned int result = 0;
	char *str;

	for (str = *ptr; isdigit(str[0]); str++)
		result = result * 10 + (str[0] - '0');
	*ptr = str;
	return result;
}