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/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
*
* This file is part of the Linux kernel, and is made available under
* the terms of the GNU General Public License version 2.
*
* ----------------------------------------------------------------------- */
/*
* Very basic string functions
*/
#include "boot.h"
int strcmp(const char *str1, const char *str2)
{
const unsigned char *s1 = (const unsigned char *)str1;
const unsigned char *s2 = (const unsigned char *)str2;
int delta = 0;
while (*s1 || *s2) {
delta = *s2 - *s1;
if (delta)
return delta;
s1++;
s2++;
}
return 0;
}
size_t strnlen(const char *s, size_t maxlen)
{
const char *es = s;
while (*es && maxlen) {
es++;
maxlen--;
}
return (es - s);
}
unsigned int atou(const char *s)
{
unsigned int i = 0;
while (isdigit(*s))
i = i * 10 + (*s++ - '0');
return i;
}
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