25 #error arb_cs.h included twice
const char * arb_gethostname()
GB_ERROR arb_open_socket(const char *name, bool do_connect, int *fd, char **filename_out)
size_t arb_socket_read(int socket, char *ptr, size_t size)
ssize_t arb_socket_write(int socket, const char *ptr, size_t size)