-__must_check __malloc char *para_strcat(char *a, const char *b);
-__must_check __malloc char *para_dirname(const char *name);
-__must_check const char *para_basename(const char *name);
-void chop(char *buf);
-__must_check __malloc char *para_tmpname(void);
-__must_check __malloc char *para_logname(void);
-__must_check __malloc char *para_homedir(void);
-__must_check unsigned split_args(char *args, char *** const argv_ptr, const char *delim);
-__malloc char *para_hostname(void);
-void valid_fd_012(void);
-__printf_2_3 int para_printf(struct para_buffer *b, const char *fmt, ...);
-/** Used for for_each_line() and for_each_line_ro(). */
-typedef int line_handler_t(char *, void *);
-int for_each_line(char *buf, size_t size, line_handler_t *line_handler,
- void *private_data);
-int for_each_line_ro(char *buf, size_t size, line_handler_t *line_handler,
- void *private_data);
-int para_atoi64(const char *str, int64_t *result);
-int para_atoi32(const char *str, int32_t *value);