write_all
ret = write_all(s, (char *) &char_flags, 1);
ret = write_all(s, lenbuf, 4);
ret = write_all(s, tok->value, tok->length);
write_all(fd, contents, strlen(contents) + 1);
write_all(fd, contents, strlen(contents) + 1);
write_all(fd, contents, strlen(contents) + 1);
write_all(fd, contents, sizeof(contents));
write_all(fd, contents, sizeof(contents));
write_all(fd, contents, sizeof(contents));
write_all(fd, contents, sizeof(contents));
write_all(fd, contents, strlen(contents) + 1);
write_all(fd, contents, strlen(contents) + 1);
write_all(fd, contents, sizeof(contents));