#include <common/bk_include.h>
#include "bk_arm_arch.h"

#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <os/str.h>
#include <os/mem.h>

char *os_strchr(const char *s, int c)
{
	return strchr(s, c);
}

UINT32 os_strlen(const char *str)
{
	return strlen(str);
}

INT32 os_strcmp(const char *s1, const char *s2)
{
	return strcmp(s1, s2);
}

UINT32 os_strtoul(const char *nptr, char **endptr, int base)
{
	return strtoul(nptr, endptr, base);
}

char *os_strcpy(char *out, const char *in)
{
	return strcpy(out, in);
}

char *os_strncpy(char *out, const char *in, const UINT32 n)
{
	return strncpy(out, in, (unsigned int)n);
}

size_t os_strlcpy(char *dest, const char *src, size_t siz)
{
	const char *s = src;
	size_t left = siz;

	if (left) {
		/* Copy string up to the maximum size of the dest buffer */
		while (--left != 0) {
			if ((*dest++ = *s++) == '\0')
				break;
		}
	}

	if (left == 0) {
		/* Not enough room for the string; force NUL-termination */
		if (siz != 0)
			*dest = '\0';

		while (*s++)
			; /* determine total src string length */
	}

	return s - src - 1;
}

INT32 os_strncmp(const char *s1, const char *s2, const UINT32 n)
{
	return strncmp(s1, s2, (unsigned int)n);
}

INT32 os_snprintf(char *buf, UINT32 size, const char *fmt, ...)
{
	va_list args;
	INT32 rc;

	va_start(args, fmt);
	rc = vsnprintf(buf, size, fmt, args);
	va_end(args);

	/* if want to print more than the limitation */
	if (rc > size)
		rc = (INT32)size - rc;

	return rc;
}

INT32 os_vsnprintf(char *buf, UINT32 size, const char *fmt, va_list ap)
{
	return vsnprintf(buf, size, fmt, ap);
}

char *os_strdup(const char *s)
{
	char *res;
	size_t len;

	if (s == NULL)
		return NULL;

	len = os_strlen(s);
	res = os_malloc(len + 1);
	if (res)
		os_memcpy(res, s, len + 1);

	return res;
}


int os_strcasecmp(const char *s1, const char *s2)
{
	/*
	 * Ignoring case is not required for main functionality, so just use
	 * the case sensitive version of the function.
	 */
	return os_strcmp(s1, s2);
}


int os_strncasecmp(const char *s1, const char *s2, size_t n)
{
	/*
	 * Ignoring case is not required for main functionality, so just use
	 * the case sensitive version of the function.
	 */
	return os_strncmp(s1, s2, n);
}

char *os_strrchr(const char *s, int c)
{
	return strrchr(s, c);
}

char *os_strstr(const char *haystack, const char *needle)
{
	return NULL;
}
// EOF