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#include <stddef.h>
#include <string.h>
size_t strnlen(const char *s, size_t max)
{
size_t len = 0;
while(len < max && *s) {
len++;
s++;
}
return len;
}
void* memset(void* s, int c, size_t n)
{
size_t i;
char *ss = (char*)s;
for (i=0;i<n;i++) ss[i] = c;
return s;
}
void* memcpy(void *dest, const void *src, size_t len)
{
size_t i;
unsigned char *d;
const unsigned char *s;
d = dest;
s = src;
for (i=0; i < len; i++)
d[i] = s[i];
return dest;
}
int memcmp(void *src1, void *src2, size_t len)
{
unsigned char *s1, *s2;
size_t i;
s1 = src1;
s2 = src2;
for(i = 0; i < len; i++) {
if (*s1 != *s2) {
return *s2 - *s1;
}
s1++;
s2++;
}
return 0;
}
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