linux下的errno定义

26--- ETXTBSY --- Text file busy

25--- ENOTTY ---Inappropriate ioctl for device

24--- EMFILE ---Too many open files

23--- ENFILE ---Too many open files in system

22--- EINVAL ---Invalid argument

21--- EISDIR ---Is a directory

20--- ENOTDIR ---Not a directory

19--- ENODEV ---No such device

18--- EXDEV ---Invalid cross-device link

17-- EEXIST ---File exists

16-- EBUSY ---Device or resource busy

15-- ENOTBLK--- Block device required

14-- EFAULT ---Bad address

13-- EACCES ---Permission denied

12-- ENOMEM ---Cannot allocate memory

11-- EAGAIN ---Resource temporarily unavailable

10-- ECHILD ---No child processes

9-- EBADF ---Bad file descriptor

8-- ENOEXEC ---Exec format error

7-- E2BIG ---Argument list too long

6-- ENXIO ---No such device or address

5-- EIO ---Input/output error

4-- EINTR ---Interrupted system call

3-- ESRCH ---No such process

2-- ENOENT ---No such file or directory

1-- EPERM ---Operation not permitted

0-- Success