strncpy() -- copy part of string

SYNOPSIS

#include <string.h>

char *strncpy(char *s1, const char *s2, size_t n);

The strncpy() function copies up to n characters, including the terminating null character, from the string pointed to by s2 into the buffer pointed to by s1. Once strncpy() has copied n characters to s1, it does not append a terminating null character.

The function strncpy() does not allocate any storage. The caller must insure that the buffer pointed to by s1 is long enough to hold the characters copied to it.