The function mystrncpy copies characters from src to dst until either a '\0' character is found in src or until n characters are copied, whichever comes first. If fewer than n characters were copied to dst, the remaining characters of dst should be filled with '\0' characters. The function should return the original value of pointer dst.

char * mystrncpy(char * dst, char * src, int n) {

char * dstsave = dst;

while (n > 0 && __________________) {

______________ = _______________;

n--;

}

// fill remainder of dst (if any) with zeros

while (n>0) {

_____________________ = '\0';

______________________________;

}

return dstsave;

}