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Linux下最常见的就是errno了，一般当发生错误时便会给全局变量errno赋值，其所有可能的值可查看linux的库文件，以下是查看linux v3.0的结果：
/usr/include/asm-generic/errno-base.h
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<pre style="margin: 0px 10px; font-family: monospace, serif; font-size: 15px; white-space: pre-wrap; word-wrap: break-word; background-color: rgb(39, 38, 37); color: rgb(235, 239, 231); padding: 10px;">#ifndef _ASM_GENERIC_ERRNO_BASE_H
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#define _ASM_GENERIC_ERRNO_BASE_H
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#define EPERM 1 /* Operation not permitted */
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#define ENOENT 2 /* No such file or directory */
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#define ESRCH 3 /* No such process */
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#define EINTR 4 /* Interrupted system call */
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#define EIO 5 /* I/O error */
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#define ENXIO 6 /* No such device or address */
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#define E2BIG 7 /* Argument list too long */
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#define ENOEXEC 8 /* Exec format error */
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#define EBADF 9 /* Bad file number */
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#define ECHILD 10 /* No child processes */
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#define EAGAIN 11 /* Try again */
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#define ENOMEM 12 /* Out of memory */
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#define EACCES 13 /* Permission denied */
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#define EFAULT 14 /* Bad address */
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#define ENOTBLK 15 /* Block device required */
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#define EBUSY 16 /* Device or resource busy */
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#define EEXIST 17 /* File exists */
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#define EXDEV 18 /* Cross-device link */
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#define ENODEV 19 /* No such device */
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#define ENOTDIR 20 /* Not a directory */
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#define EISDIR 21 /* Is a directory */
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#define EINVAL 22 /* Invalid argument */
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#define ENFILE 23 /* File table overflow */
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#define EMFILE 24 /* Too many open files */
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#define ENOTTY 25 /* Not a typewriter */
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#define ETXTBSY 26 /* Text file busy */
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#define EFBIG 27 /* File too large */
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#define ENOSPC 28 /* No space left on device */
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#define ESPIPE 29 /* Illegal seek */
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#define EROFS 30 /* Read-only file system */
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#define EMLINK 31 /* Too many links */
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#define EPIPE 32 /* Broken pipe */
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#define EDOM 33 /* Math argument out of domain of func */
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#define ERANGE 34 /* Math result not representable */
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#endif</pre>
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<pre></pre>
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<span style="color:rgb(34,34,34); font-family:sans-serif; font-size:16px; line-height:22px">/usr/include/asm-generic/errno.h</span>
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<pre></pre>
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<pre name="code" class="cpp"><span style="font-family:sans-serif;font-size:18px;color:#222222;"><span style="line-height: 22px;">
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</span></span><p></p><p><span style="color:rgb(34,34,34); font-family:sans-serif; font-size:16px; line-height:22px"></span></p><pre style="margin:0px 10px; font-family:monospace,serif; font-size:15px; white-space:pre-wrap; word-wrap:break-word; background-color:rgb(39,38,37); color:rgb(235,239,231); padding:10px">#ifndef _ASM_GENERIC_ERRNO_H
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#define _ASM_GENERIC_ERRNO_H
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#include <asm-generic/errno-base.h>
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#define EDEADLK 35 /* Resource deadlock would occur */
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#define ENAMETOOLONG 36 /* File name too long */
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#define ENOLCK 37 /* No record locks available */
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#define ENOSYS 38 /* Function not implemented */
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#define ENOTEMPTY 39 /* Directory not empty */
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#define ELOOP 40 /* Too many symbolic links encountered */
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#define EWOULDBLOCK EAGAIN /* Operation would block */
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#define ENOMSG 42 /* No message of desired type */
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#define EIDRM 43 /* Identifier removed */
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#define ECHRNG 44 /* Channel number out of range */
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#define EL2NSYNC 45 /* Level 2 not synchronized */
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#define EL3HLT 46 /* Level 3 halted */
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#define EL3RST 47 /* Level 3 reset */
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#define ELNRNG 48 /* Link number out of range */
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#define EUNATCH 49 /* Protocol driver not attached */
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#define ENOCSI 50 /* No CSI structure available */
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#define EL2HLT 51 /* Level 2 halted */
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#define EBADE 52 /* Invalid exchange */
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#define EBADR 53 /* Invalid request descriptor */
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#define EXFULL 54 /* Exchange full */
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#define ENOANO 55 /* No anode */
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#define EBADRQC 56 /* Invalid request code */
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#define EBADSLT 57 /* Invalid slot */
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#define EDEADLOCK EDEADLK
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#define EBFONT 59 /* Bad font file format */
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#define ENOSTR 60 /* Device not a stream */
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#define ENODATA 61 /* No data available */
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#define ETIME 62 /* Timer expired */
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#define ENOSR 63 /* Out of streams resources */
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#define ENONET 64 /* Machine is not on the network */
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#define ENOPKG 65 /* Package not installed */
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#define EREMOTE 66 /* Object is remote */
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#define ENOLINK 67 /* Link has been severed */
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#define EADV 68 /* Advertise error */
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#define ESRMNT 69 /* Srmount error */
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#define ECOMM 70 /* Communication error on send */
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#define EPROTO 71 /* Protocol error */
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#define EMULTIHOP 72 /* Multihop attempted */
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#define EDOTDOT 73 /* RFS specific error */
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#define EBADMSG 74 /* Not a data message */
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#define EOVERFLOW 75 /* Value too large for defined data type */
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#define ENOTUNIQ 76 /* Name not unique on network */
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#define EBADFD 77 /* File descriptor in bad state */
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#define EREMCHG 78 /* Remote address changed */
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#define ELIBACC 79 /* Can not access a needed shared library */
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#define ELIBBAD 80 /* Accessing a corrupted shared library */
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#define ELIBSCN 81 /* .lib section in a.out corrupted */
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#define ELIBMAX 82 /* Attempting to link in too many shared libraries */
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#define ELIBEXEC 83 /* Cannot exec a shared library directly */
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#define EILSEQ 84 /* Illegal byte sequence */
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#define ERESTART 85 /* Interrupted system call should be restarted */
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#define ESTRPIPE 86 /* Streams pipe error */
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#define EUSERS 87 /* Too many users */
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#define ENOTSOCK 88 /* Socket operation on non-socket */
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#define EDESTADDRREQ 89 /* Destination address required */
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#define EMSGSIZE 90 /* Message too long */
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#define EPROTOTYPE 91 /* Protocol wrong type for socket */
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#define ENOPROTOOPT 92 /* Protocol not available */
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#define EPROTONOSUPPORT 93 /* Protocol not supported */
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#define ESOCKTNOSUPPORT 94 /* Socket type not supported */
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#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */
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#define EPFNOSUPPORT 96 /* Protocol family not supported */
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#define EAFNOSUPPORT 97 /* Address family not supported by protocol */
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#define EADDRINUSE 98 /* Address already in use */
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#define EADDRNOTAVAIL 99 /* Cannot assign requested address */
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#define ENETDOWN 100 /* Network is down */
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#define ENETUNREACH 101 /* Network is unreachable */
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#define ENETRESET 102 /* Network dropped connection because of reset */
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#define ECONNABORTED 103 /* Software caused connection abort */
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#define ECONNRESET 104 /* Connection reset by peer */
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#define ENOBUFS 105 /* No buffer space available */
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#define EISCONN 106 /* Transport endpoint is already connected */
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#define ENOTCONN 107 /* Transport endpoint is not connected */
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#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */
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#define ETOOMANYREFS 109 /* Too many references: cannot splice */
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#define ETIMEDOUT 110 /* Connection timed out */
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#define ECONNREFUSED 111 /* Connection refused */
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#define EHOSTDOWN 112 /* Host is down */
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#define EHOSTUNREACH 113 /* No route to host */
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#define EALREADY 114 /* Operation already in progress */
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#define EINPROGRESS 115 /* Operation now in progress */
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#define ESTALE 116 /* Stale NFS file handle */
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#define EUCLEAN 117 /* Structure needs cleaning */
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#define ENOTNAM 118 /* Not a XENIX named type file */
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#define ENAVAIL 119 /* No XENIX semaphores available */
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#define EISNAM 120 /* Is a named type file */
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#define EREMOTEIO 121 /* Remote I/O error */
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#define EDQUOT 122 /* Quota exceeded */
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#define ENOMEDIUM 123 /* No medium found */
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#define EMEDIUMTYPE 124 /* Wrong medium type */
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#define ECANCELED 125 /* Operation Canceled */
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#define ENOKEY 126 /* Required key not available */
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#define EKEYEXPIRED 127 /* Key has expired */
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#define EKEYREVOKED 128 /* Key has been revoked */
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#define EKEYREJECTED 129 /* Key was rejected by service */
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#define EOWNERDEAD 130 /* Owner died */
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#define ENOTRECOVERABLE 131 /* State not recoverable */
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#endif</pre><br>
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(责任编辑：IT) |
