errno类型 linux
2017-05-02 21:49:00 weixin_33981932 阅读数 3

Linux/include/uapi/asm-generic/errno-base.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 domain of func */
#define ERANGE 34 /* Math result not representable */

#endif

Linux/include/uapi/asm-generic/errno.h
#ifndef _ASM_GENERIC_ERRNO_H
#define _ASM_GENERIC_ERRNO_H

#include <asm-generic/errno-base.h>

#define EDEADLK 35 /* Resource deadlock would occur */
#define ENAMETOOLONG 36 /* File name too long */
#define ENOLCK 37 /* No record locks available */

/*
* This error code is special: arch syscall entry code will return
* -ENOSYS if users try to call a syscall that doesn't exist. To keep
* failures of syscalls that really do exist distinguishable from
* failures due to attempts to use a nonexistent syscall, syscall
* implementations should refrain from returning -ENOSYS.
*/
#define ENOSYS 38 /* Invalid system call number */

#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 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 */
#define ECANCELED 125 /* Operation Canceled */
#define ENOKEY 126 /* Required key not available */
#define EKEYEXPIRED 127 /* Key has expired */
#define EKEYREVOKED 128 /* Key has been revoked */
#define EKEYREJECTED 129 /* Key was rejected by service */

/* for robust mutexes */
#define EOWNERDEAD 130 /* Owner died */
#define ENOTRECOVERABLE 131 /* State not recoverable */

#define ERFKILL 132 /* Operation not possible due to RF-kill */

#define EHWPOISON 133 /* Memory page has hardware error */

#endif

 

Linux/include/linux/errno.h
#ifndef _LINUX_ERRNO_H
#define _LINUX_ERRNO_H

#include <uapi/linux/errno.h>


/*
* These should never be seen by 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 debugged user
* process to see.
*/
#define ERESTARTSYS 512
#define ERESTARTNOINTR 513
#define ERESTARTNOHAND 514 /* restart if no handler.. */
#define ENOIOCTLCMD 515 /* No ioctl command */
#define ERESTART_RESTARTBLOCK 516 /* restart by calling sys_restart_syscall */
#define EPROBE_DEFER 517 /* Driver requests probe retry */
#define EOPENSTALE 518 /* open found a stale dentry */

/* Defined for the NFSv3 protocol */
#define EBADHANDLE 521 /* Illegal NFS file handle */
#define ENOTSYNC 522 /* Update synchronization mismatch */
#define EBADCOOKIE 523 /* Cookie is stale */
#define ENOTSUPP 524 /* Operation is not supported */
#define ETOOSMALL 525 /* Buffer or request is too small */
#define ESERVERFAULT 526 /* An untranslatable error occurred */
#define EBADTYPE 527 /* Type not supported by server */
#define EJUKEBOX 528 /* Request initiated, but will not complete before timeout */
#define EIOCBQUEUED 529 /* iocb queued, will get completion event */
#define ERECALLCONFLICT 530 /* conflict with recalled state */

#endif

2018-12-25 14:35:59 qq_35976351 阅读数 57

erron是一个错误码,系统调用出错的时候,会设置一个错误码。因为C语言没有异常处理机制,所以要依靠错误码进行异常情况的处理。

如果系统调用出错(一般是调用函数返回-1的时候)errno会被设置为有关的标记,系统调用成功可以重新设置设置该编码。errno永远不会被系统调用或者lib库函数设置为0。

errno是一个左值、可更改的、不能被显式声明的整型。是线程私有的,一个线程中的errno被改变不会影响其它线程的errno

具体详细参考:
http://man7.org/linux/man-pages/man3/errno.3.html

一般的用法是:

if (somecall() == -1) {
	perror("somecall() failed\n");
	if (errno == ...) {  // 判别错误码
		// 添加错误处理代码
    }
}
2016-02-18 09:57:38 HedpatCzw 阅读数 233
        #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 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 ENOKEY 126 /* Required key not available */
  #define EKEYEXPIRED 127 /* Key has expired */
  #define EKEYREVOKED 128 /* Key has been revoked */
  #define EKEYREJECTED 129 /* Key was rejected by service */
  #define EOWNERDEAD 130 /* Owner died */
  #define ENOTRECOVERABLE 131 /* State not recoverable */
  #define ERFKILL 132 /* Operation not possible due to RF-kill */
  #define EHWPOISON 133 /* Memory page has hardware error */
2009-08-18 08:21:00 iteye_14356 阅读数 9

以下来自linux 2.4.20-18的内核代码中的/usr/include/asm/errno.h
#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

2016-08-12 16:34:00 weixin_34296641 阅读数 8

摘自Linux-3.18.20的头文件include/uapi/asm-generic/errno-base.h和include/uapi/asm-generic/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    /* 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 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 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 */
#define    ECANCELED    125    /* Operation Canceled */
#define    ENOKEY        126    /* Required key not available */
#define    EKEYEXPIRED    127    /* Key has expired */
#define    EKEYREVOKED    128    /* Key has been revoked */
#define    EKEYREJECTED    129    /* Key was rejected by service */

/* for robust mutexes */
#define    EOWNERDEAD    130    /* Owner died */
#define    ENOTRECOVERABLE    131    /* State not recoverable */

#define ERFKILL        132    /* Operation not possible due to RF-kill */

#define EHWPOISON    133    /* Memory page has hardware error */

 

LINUX errno

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Linux errno

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Linux errno

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Linux errno

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Linux errno

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