int unhexchar(char c);
char octchar(int x);
int unoctchar(char c);
+char decchar(int x);
+int undecchar(char c);
char *cescape(const char *s);
char *cunescape(const char *s);
struct __useless_struct_to_allow_trailing_semicolon__
+int fd_nonblock(int fd, bool nonblock);
+int fd_cloexec(int fd, bool cloexec);
+
const char *ioprio_class_to_string(int i);
int ioprio_class_from_string(const char *s);