linux错误码大全
查看错误代码errno是调试程序的一个重要方法。当linuc
Capi函数发生异常时,一般会将errno变量(需includeerrno.h)赋一个整数值,不同的值表示不同的含义,可以通过查看该值推测出错的原因。在实际编程中用这一招解决了不少原本看来莫名其妙的问题。比较麻烦的是每次都要去linux源代码里面查找错误代码的含义，现在把它贴出来，以后需要查时就来这里看了。
1-34号错误号是在内核源码的include/asm-generic/errno-base.h定义
35-132则是在include/asm-generic/errno.h中定义
剩下还有一些更大的错误号是留给内核级别的，如系统调用等，用户程序一般是看不见的这些号的，
Ubuntu9.10中/usr/src/linux-headers-2.6.31-21-generic/include/linux/errno.h
#ifndef_ASM_GENERIC_ERRNO_BASE_H #define_ASM_GENERIC_ERRNO_BASE_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 /＊ Argument 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 domainof func ＊/ #define
ERANGE 34 /＊ Math result notrepresentable ＊/
#endif
#include<asm-generic/errno-base.h>
#define EDEADLK 35 /＊ Resource deadlock wouldoccur ＊/ #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 linksencountered ＊/ #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 /＊ Level2 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 notattached ＊/ #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 thenetwork ＊/ #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 /＊ Valuetoo large for
defined data type ＊/ #define ENOTUNIQ 76 /＊ Namenot unique on network ＊/
#define EBADFD 77 /＊ File descriptor in badstate ＊/ #define EREMCHG
78 /＊ Remote address changed＊/ #define ELIBACC 79 /＊ Can not
access a neededshared library ＊/ #define ELIBBAD 80 /＊ Accessing a
corruptedshared library ＊/ #define ELIBSCN 81 /＊ .lib section in
a.outcorrupted ＊/ #define ELIBMAX 82 /＊ Attempting to link in toomany
shared libraries ＊/ #define ELIBEXEC 83 /＊ Cannotexec 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 /＊ Socketoperation 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 isalready
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 /＊
Hostis 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 semaphoresavailable ＊/ #define EISNAM
120 /＊ Is a named type file＊/ #define EREMOTEIO 121 /＊Remote I/O
error ＊/ #define EDQUOT 122 /＊ Quota exceeded＊/ #define ENOMEDIUM
123 /＊ Nomedium found ＊/ #define EMEDIUMTYPE 124 /＊ Wrongmedium
type ＊/ #define ECANCELED 125 /＊Operation Canceled ＊/ #define ENOKEY
126 /＊ Required key not available＊/ #define EKEYEXPIRED 127 /＊
Keyhas expired ＊/ #define EKEYREVOKED 128 /＊ Keyhas been revoked ＊/
#define EKEYREJECTED 129 /＊ Key was rejected by service＊/
/＊ forrobust mutexes ＊/ #define EOWNERDEAD 130 /＊ Ownerdied ＊/ #define
ENOTRECOVERABLE 131 /＊ State not recoverable ＊/
#defineERFKILL 132 /＊Operation not possible due to RF-kill ＊/
#ifdef__KERNEL__
/＊ ＊ These should never be seenby user programs. To return one of ERESTART＊
＊ codes, signal_pending()MUST be set. Note that ptrace can observe these ＊ at
syscall exit tracing,but they will never be left for the debuggeduser ＊
process tosee. ＊/ #defineERESTARTSYS 512 #defineERESTARTNOINTR 513
#defineERESTARTNOHAND 514 /＊ restart if no handler..＊/ #defineENOIOCTLCMD
515 /＊ No ioctl command＊/ #defineERESTART_RESTARTBLOCK 516 /＊ restart by
calling sys_restart_syscall＊/
/＊Defined for the NFSv3 protocol ＊/ #defineEBADHANDLE 521 /＊ Illegal NFS
file handle＊/ #defineENOTSYNC 522 /＊ Update synchronizationmismatch ＊/
#defineEBADCOOKIE 523 /＊ Cookie is stale＊/ #defineENOTSUPP 524 /＊
Operation is not supported＊/ #defineETOOSMALL 525 /＊ Buffer or request is
toosmall ＊/ #defineESERVERFAULT 526 /＊ An untranslatable erroroccurred ＊/
#defineEBADTYPE 527 /＊ Type not supported byserver ＊/ #defineEJUKEBOX
528 /＊ Request initiated, but willnot complete before timeout ＊/
#defineEIOCBQUEUED 529 /＊ iocb queued, will getcompletion event ＊/
#defineEIOCBRETRY 530 /＊ iocb queued, will trigger aretry ＊/
#endif
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