+__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);
+int get_loglevel_by_name(const char *txt);
+int read_size_header(const char *buf);
+int create_argv(const char *buf, const char *delim, char ***result);
+int find_arg(const char *arg, char **argv);
+void free_argv(char **argv);
+int para_regcomp(regex_t *preg, const char *regex, int cflags);
+void freep(void *arg);
+int compute_word_num(const char *buf, const char *delim, int offset);
+char *safe_strdup(const char *src, size_t len);
+char *key_value_copy(const char *src, size_t len, const char *key);