35 ssize_t os_read(int fd, void *buf, size_t count)  in os_read()  argument
37 	return read(fd, buf, count);  in os_read()
40 ssize_t os_read_no_block(int fd, void *buf, size_t count)  in os_read_no_block()  argument
42 	const int flags = fcntl(fd, F_GETFL, 0);  in os_read_no_block()
44 	fcntl(fd, F_SETFL, flags | O_NONBLOCK);  in os_read_no_block()
45 	return os_read(fd, buf, count);  in os_read_no_block()
48 ssize_t os_write(int fd, const void *buf, size_t count)  in os_write()  argument
50 	return write(fd, buf, count);  in os_write()
53 off_t os_lseek(int fd, off_t offset, int whence)  in os_lseek()  argument
63 	return lseek(fd, offset, whence);  in os_lseek()
91 int os_close(int fd)  in os_close()  argument
93 	return close(fd);  in os_close()
119 void os_tty_raw(int fd, bool allow_sigs)  in os_tty_raw()  argument
127 	if (tcgetattr(fd, &orig_term))  in os_tty_raw()
135 	if (tcsetattr(fd, TCSANOW, &term))  in os_tty_raw()
419 	int fd, ret;  in os_write_ram_buf()  local
421 	fd = open(fname, O_CREAT | O_WRONLY, 0777);  in os_write_ram_buf()
422 	if (fd < 0)  in os_write_ram_buf()
424 	ret = write(fd, state->ram_buf, state->ram_size);  in os_write_ram_buf()
425 	close(fd);  in os_write_ram_buf()
435 	int fd, ret;  in os_read_ram_buf()  local
443 	fd = open(fname, O_RDONLY);  in os_read_ram_buf()
444 	if (fd < 0)  in os_read_ram_buf()
447 	ret = read(fd, state->ram_buf, state->ram_size);  in os_read_ram_buf()
448 	close(fd);  in os_read_ram_buf()
457 	int fd;  in make_exec()  local
460 	fd = mkstemp(fname);  in make_exec()
461 	if (fd < 0)  in make_exec()
463 	if (write(fd, data, size) < 0)  in make_exec()
465 	close(fd);  in make_exec()
497 	int fd, err;  in os_jump_to_image()  local
509 	fd = mkstemp(mem_fname);  in os_jump_to_image()
510 	if (fd < 0)  in os_jump_to_image()
512 	close(fd);  in os_jump_to_image()
551 	int fd;  in os_find_u_boot()  local
560 		fd = os_open(fname, O_RDONLY);  in os_find_u_boot()
561 		if (fd >= 0) {  in os_find_u_boot()
562 			close(fd);  in os_find_u_boot()
571 		fd = os_open(fname, O_RDONLY);  in os_find_u_boot()
572 		if (fd >= 0) {  in os_find_u_boot()
573 			close(fd);  in os_find_u_boot()