ssize_t m_strcpy(char *dst, ssize_t n, const char *src);
ssize_t m_strncpy(char *dst, ssize_t n, const char *src, ssize_t l);
ssize_t m_strcpy(char *dst, ssize_t n, const char *src);
ssize_t m_strncpy(char *dst, ssize_t n, const char *src, ssize_t l);