strright(3)
return a pointer to the beginning of the rightmost n chars in a string
SYNOPSIS
#include <publib.h>
char *strright(const char *s, size_t n);
DESCRIPTION
strright will return a pointer to the first of the n rightmost
characters (not counting the '\0') in the string s. It does not
make a copy of the string, but will return a pointer into the argument
string.