Linux errno

errno 在 <errno.h> 中定义，错误 Exx 的宏定义在 /usr/include/asm-generic 文件夹下面的  errno-base.h 和 errno.h，分别定义了 1-34 、35-132 的错误定义。

strerror() 函数依据 errno 值返回错误描述字符串，下面程序打印对照表：

#include <errno.h>
#include <string.h>
#include <stdio.h>

int main()
{
    int i;
    for(i = 0; i < 140; ++i)
    {
        errno = i;
        printf("errno %d :\t\t%s\n",i,strerror(errno));
    }
    return 0;
}

错误对照表：

errno0 :     Success

errno1 :     Operation not permitted

errno2 :     No such file or directory

errno3 :     No such process

errno4 :     Interrupted system call

errno5 :     Input/output error

errno6 :     No such device or address

errno7 :     Argument list too long

errno8 :     Exec format error

errno9 :     Bad file descriptor

errno10 :    No child processes

errno11 :    Resource temporarily unavailable

errno12 :    Cannot allocate memory

errno13 :    Permission denied

errno14 :    Bad address

errno15 :    Block device required

errno16 :    Device or resource busy

errno17 :    File exists

errno18 :    Invalid cross-device link

errno19 :    No such device

errno20 :    Not a directory

errno21 :    Is a directory

errno22 :    Invalid argument

errno23 :    Too many open files in system

errno24 :    Too many open files

errno25 :    Inappropriate ioctl for device

errno26 :    Text file busy

errno27 :    File too large

errno28 :    No space left on device

errno29 :    Illegal seek

errno30 :    Read-only file system

errno31 :    Too many links

errno32 :    Broken pipe

errno33 :    Numerical argument out of domain

errno34 :    Numerical result out of range

errno35 :    Resource deadlock avoided

errno36 :    File name too long

errno37 :    No locks available

errno38 :    Function not implemented

errno39 :    Directory not empty

errno40 :    Too many levels of symbolic links

errno41 :    Unknown error 41

errno42 :    No message of desired type

errno43 :    Identifier removed

errno44 :    Channel number out of range

errno45 :    Level 2 not synchronized

errno46 :    Level 3 halted

errno47 :    Level 3 reset

errno48 :    Link number out of range

errno49 :    Protocol driver not attached

errno50 :    No CSI structure available

errno51 :    Level 2 halted

errno52 :    Invalid exchange

errno53 :    Invalid request descriptor

errno54 :    Exchange full

errno55 :    No anode

errno56 :    Invalid request code

errno57 :    Invalid slot

errno58 :    Unknown error 58

errno59 :    Bad font file format

errno60 :    Device not a stream

errno61 :    No data available

errno62 :    Timer expired

errno63 :    Out of streams resources

errno64 :    Machine is not on the network

errno65 :    Package not installed

errno66 :    Object is remote

errno67 :    Link has been severed

errno68 :    Advertise error

errno69 :    Srmount error

errno70 :    Communication error on send

errno71 :    Protocol error

errno72 :    Multihop attempted

errno73 :    RFS specific error

errno74 :    Bad message

errno75 :    Value too large for defined datatype

errno76 :    Name not unique on network

errno77 :    File descriptor in bad state

errno78 :    Remote address changed

errno79 :    Can not access a needed sharedlibrary

errno80 :    Accessing a corrupted sharedlibrary

errno81 :    .lib section in a.out corrupted

errno82 :    Attempting to link in too manyshared libraries

errno83 :    Cannot exec a shared librarydirectly

errno84 :    Invalid or incomplete multibyte orwide character

errno85 :    Interrupted system call should berestarted

errno86 :    Streams pipe error

errno87 :    Too many users

errno88 :    Socket operation on non-socket

errno89 :    Destinationaddress required

errno90 :    Message too long

errno91 :    Protocol wrong type for socket

errno92 :    Protocol not available

errno93 :    Protocol not supported

errno94 :    Socket type not supported

errno95 :    Operation not supported

errno96 :    Protocol family not supported

errno97 :    Address family not supported byprotocol

errno98 :    Address already in use

errno99 :    Cannot assign requested address

errno100 :   Network is down

errno101 :   Network is unreachable

errno102 :   Network dropped connection onreset

errno103 :   Software caused connection abort

errno104 :   Connection reset by peer

errno105 :   No buffer space available

errno106 :   Transport endpoint is alreadyconnected

errno107 :   Transport endpoint is notconnected

errno108 :   Cannot send after transportendpoint shutdown

errno109 :   Too many references: cannot splice

errno110 :   Connection timed out

errno111 :   Connection refused

errno112 :   Host is down

errno113 :   No route to host

errno114 :   Operation already in progress

errno115 :   Operation now in progress

errno116 :   Stale NFS file handle

errno117 :   Structure needs cleaning

errno118 :   Not a XENIX named type file

errno119 :   No XENIX semaphores available

errno120 :   Is a named type file

errno121 :   Remote I/O error

errno122 :   Disk quota exceeded

errno123 :   No medium found

errno124 :   Wrong medium type

errno125 :   Operation canceled

errno126 :   Required key not available

errno127 :   Key has expired

errno128 :   Key has been revoked

errno129 :   Key was rejected by service

errno130 :   Owner died

errno131 :   State not recoverable

errno132 :   Operation not possible due toRF-kill

errno133 :   Unknown error 133

errno134 :   Unknown error 134

errno135 :   Unknown error 135

errno136 :   Unknown error 136

errno137 :   Unknown error 137

errno138 :   Unknown error 138

errno139 :   Unknown error 139

 

#ifndef _I386_ERRNO_H
#define _I386_ERRNO_H
#define EPERM   1 /* Operation not permitted */
#define ENOENT   2 /* No such file or directory */
#define ESRCH   3 /* No such process */
#define EINTR   4 /* Interrupted system call */
#define EIO       5 /* I/O error */
#define ENXIO   6 /* No such device or address */
#define E2BIG   7 /* Arg list too long */
#define ENOEXEC   8 /* Exec format error */
#define EBADF   9 /* Bad file number */
#define ECHILD 10 /* No child processes */
#define EAGAIN 11 /* Try again */
#define ENOMEM 12 /* Out of memory */
#define EACCES 13 /* Permission denied */
#define EFAULT 14 /* Bad address */
#define ENOTBLK 15 /* Block device required */
#define EBUSY 16 /* Device or resource busy */
#define EEXIST 17 /* File exists */
#define EXDEV 18 /* Cross-device link */
#define ENODEV 19 /* No such device */
#define ENOTDIR 20 /* Not a directory */
#define EISDIR 21 /* Is a directory */
#define EINVAL 22 /* Invalid argument */
#define ENFILE 23 /* File table overflow */
#define EMFILE 24 /* Too many open files */
#define ENOTTY 25 /* Not a typewriter */
#define ETXTBSY 26 /* Text file busy */
#define EFBIG 27 /* File too large */
#define ENOSPC 28 /* No space left on device */
#define ESPIPE 29 /* Illegal seek */
#define EROFS 30 /* Read-only file system */
#define EMLINK 31 /* Too many links */
#define EPIPE 32 /* Broken pipe */
#define EDOM 33 /* Math argument out of domain of func */
#define ERANGE 34 /* Math result not representable */
#define EDEADLK 35 /* Resource deadlock would occur */
#define ENAMETOOLONG 36 /* File name too long */
#define ENOLCK 37 /* No record locks available */
#define ENOSYS 38 /* Function not implemented */
#define ENOTEMPTY 39 /* Directory not empty */
#define ELOOP 40 /* Too many symbolic links encountered */
#define EWOULDBLOCK EAGAIN /* Operation would block */
#define ENOMSG 42 /* No message of desired type */
#define EIDRM 43 /* Identifier removed */
#define ECHRNG 44 /* Channel number out of range */
#define EL2NSYNC 45 /* Level 2 not synchronized */
#define EL3HLT 46 /* Level 3 halted */
#define EL3RST 47 /* Level 3 reset */
#define ELNRNG 48 /* Link number out of range */
#define EUNATCH 49 /* Protocol driver not attached */
#define ENOCSI 50 /* No CSI structure available */
#define EL2HLT 51 /* Level 2 halted */
#define EBADE 52 /* Invalid exchange */
#define EBADR 53 /* Invalid request descriptor */
#define EXFULL 54 /* Exchange full */
#define ENOANO 55 /* No anode */
#define EBADRQC 56 /* Invalid request code */
#define EBADSLT 57 /* Invalid slot */
#define EDEADLOCK EDEADLK
#define EBFONT 59 /* Bad font file format */
#define ENOSTR 60 /* Device not a stream */
#define ENODATA 61 /* No data available */
#define ETIME 62 /* Timer expired */
#define ENOSR 63 /* Out of streams resources */
#define ENONET 64 /* Machine is not on the network */
#define ENOPKG 65 /* Package not installed */
#define EREMOTE 66 /* Object is remote */
#define ENOLINK 67 /* Link has been severed */
#define EADV 68 /* Advertise error */
#define ESRMNT 69 /* Srmount error */
#define ECOMM 70 /* Communication error on send */
#define EPROTO 71 /* Protocol error */
#define EMULTIHOP 72 /* Multihop attempted */
#define EDOTDOT 73 /* RFS specific error */
#define EBADMSG 74 /* Not a data message */
#define EOVERFLOW 75 /* Value too large for defined data type */
#define ENOTUNIQ 76 /* Name not unique on network */
#define EBADFD 77 /* File descriptor in bad state */
#define EREMCHG 78 /* Remote address changed */
#define ELIBACC 79 /* Can not access a needed shared library */
#define ELIBBAD 80 /* Accessing a corrupted shared library */
#define ELIBSCN 81 /* .lib section in a.out corrupted */
#define ELIBMAX 82 /* Attempting to link in too many shared libraries */
#define ELIBEXEC 83 /* Cannot exec a shared library directly */
#define EILSEQ 84 /* Illegal byte sequence */
#define ERESTART 85 /* Interrupted system call should be restarted */
#define ESTRPIPE 86 /* Streams pipe error */
#define EUSERS 87 /* Too many users */
#define ENOTSOCK 88 /* Socket operation on non-socket */
#define EDESTADDRREQ 89 /* Destination address required */
#define EMSGSIZE 90 /* Message too long */
#define EPROTOTYPE 91 /* Protocol wrong type for socket */
#define ENOPROTOOPT 92 /* Protocol not available */
#define EPROTONOSUPPORT 93 /* Protocol not supported */
#define ESOCKTNOSUPPORT 94 /* Socket type not supported */
#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */
#define EPFNOSUPPORT 96 /* Protocol family not supported */
#define EAFNOSUPPORT 97 /* Address family not supported by protocol */
#define EADDRINUSE 98 /* Address already in use */
#define EADDRNOTAVAIL 99 /* Cannot assign requested address */
#define ENETDOWN 100 /* Network is down */
#define ENETUNREACH 101 /* Network is unreachable */
#define ENETRESET 102 /* Network dropped connection because of reset */
#define ECONNABORTED 103 /* Software caused connection abort */
#define ECONNRESET 104 /* Connection reset by peer */
#define ENOBUFS 105 /* No buffer space available */
#define EISCONN 106 /* Transport endpoint is already connected */
#define ENOTCONN 107 /* Transport endpoint is not connected */
#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */
#define ETOOMANYREFS 109 /* Too many references: cannot splice */
#define ETIMEDOUT 110 /* Connection timed out */
#define ECONNREFUSED 111 /* Connection refused */
#define EHOSTDOWN 112 /* Host is down */
#define EHOSTUNREACH 113 /* No route to host */
#define EALREADY 114 /* Operation already in progress */
#define EINPROGRESS 115 /* Operation now in progress */
#define ESTALE 116 /* Stale NFS file handle */
#define EUCLEAN 117 /* Structure needs cleaning */
#define ENOTNAM 118 /* Not a XENIX named type file */
#define ENAVAIL 119 /* No XENIX semaphores available */
#define EISNAM 120 /* Is a named type file */
#define EREMOTEIO 121 /* Remote I/O error */
#define EDQUOT 122 /* Quota exceeded */
#define ENOMEDIUM 123 /* No medium found */
#define EMEDIUMTYPE 124 /* Wrong medium type */
#endif