Linux系统中关于errno的详解，linuxerrno详解

Linux系统中关于errno的详解，linuxerrno详解

Linux中系统调用的错误都存储于 errno中，errno由操作系统维护，存储就近发生的错误，即下一次的错误码会覆盖掉上一次的错误。

errno:  0       Success
errno:  1       Operation not permitted
errno:  2       No such file or directory
errno:  3       No such process
errno:  4       Interrupted system call
errno:  5       Input/output error
errno:  6       No such device or address
errno:  7       Argument list too long
errno:  8       Exec format error
errno:  9       Bad file descriptor
errno: 10       No child processes
errno: 11       Resource temporarily unavailable
errno: 12       Cannot allocate memory
errno: 13       Permission denied
errno: 14       Bad address
errno: 15       Block device required
errno: 16       Device or resource busy
errno: 17       File exists
errno: 18       Invalid cross-device link
errno: 19       No such device
errno: 20       Not a directory
errno: 21       Is a directory
errno: 22       Invalid argument
errno: 23       Too many open files in system
errno: 24       Too many open files
errno: 25       Inappropriate ioctl for device
errno: 26       Text file busy
errno: 27       File too large
errno: 28       No space left on device
errno: 29       Illegal seek
errno: 30       Read-only file system
errno: 31       Too many links
errno: 32       Broken pipe
errno: 33       Numerical argument out of domain
errno: 34       Numerical result out of range
errno: 35       Resource deadlock avoided
errno: 36       File name too long
errno: 37       No locks available
errno: 38       Function not implemented
errno: 39       Directory not empty
errno: 40       Too many levels of symbolic links
errno: 41       Unknown error 41
errno: 42       No message of desired type
errno: 43       Identifier removed
errno: 44       Channel number out of range
errno: 45       Level 2 not synchronized
errno: 46       Level 3 halted
errno: 47       Level 3 reset
errno: 48       Link number out of range
errno: 49       Protocol driver not attached
errno: 50       No CSI structure available
errno: 51       Level 2 halted
errno: 52       Invalid exchange
errno: 53       Invalid request descriptor
errno: 54       Exchange full
errno: 55       No anode
errno: 56       Invalid request code
errno: 57       Invalid slot
errno: 58       Unknown error 58
errno: 59       Bad font file format
errno: 60       Device not a stream
errno: 61       No data available
errno: 62       Timer expired
errno: 63       Out of streams resources
errno: 64       Machine is not on the network
errno: 65       Package not installed
errno: 66       Object is remote
errno: 67       Link has been severed
errno: 68       Advertise error
errno: 69       Srmount error
errno: 70       Communication error on send
errno: 71       Protocol error
errno: 72       Multihop attempted
errno: 73       RFS specific error
errno: 74       Bad message
errno: 75       Value too large for defined data type
errno: 76       Name not unique on network
errno: 77       File descriptor in bad state
errno: 78       Remote address changed
errno: 79       Can not access a needed shared library
errno: 80       Accessing a corrupted shared library
errno: 81       .lib section in a.out corrupted
errno: 82       Attempting to link in too many shared libraries
errno: 83       Cannot exec a shared library directly
errno: 84       Invalid or incomplete multibyte or wide character
errno: 85       Interrupted system call should be restarted
errno: 86       Streams pipe error
errno: 87       Too many users
errno: 88       Socket operation on non-socket
errno: 89       Destination address required
errno: 90       Message too long
errno: 91       Protocol wrong type for socket
errno: 92       Protocol not available
errno: 93       Protocol not supported
errno: 94       Socket type not supported
errno: 95       Operation not supported
errno: 96       Protocol family not supported
errno: 97       Address family not supported by protocol
errno: 98       Address already in use
errno: 99       Cannot assign requested address
errno: 100      Network is down
errno: 101      Network is unreachable
errno: 102      Network dropped connection on reset
errno: 103      Software caused connection abort
errno: 104      Connection reset by peer
errno: 105      No buffer space available
errno: 106      Transport endpoint is already connected
errno: 107      Transport endpoint is not connected
errno: 108      Cannot send after transport endpoint shutdown
errno: 109      Too many references: cannot splice
errno: 110      Connection timed out
errno: 111      Connection refused
errno: 112      Host is down
errno: 113      No route to host
errno: 114      Operation already in progress
errno: 115      Operation now in progress
errno: 116      Stale file handle
errno: 117      Structure needs cleaning
errno: 118      Not a XENIX named type file
errno: 119      No XENIX semaphores available
errno: 120      Is a named type file
errno: 121      Remote I/O error
errno: 122      Disk quota exceeded
errno: 123      No medium found
errno: 124      Wrong medium type
errno: 125      Operation canceled
errno: 126      Required key not available
errno: 127      Key has expired
errno: 128      Key has been revoked
errno: 129      Key was rejected by service
errno: 130      Owner died
errno: 131      State not recoverable
errno: 132      Operation not possible due to RF-kill
errno: 133      Memory page has hardware error
errno: 134~255  unknown error!