errno.h File Reference

The header <errno.h> defines several macros, all relating to the reporting of error conditions. More...

#include <nlibc.h>

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Defines
#define	EDOM   33
	Math argument out of domain of func.
#define	EILSEQ   84
	Illegal byte sequence.
#define	ERANGE   34
	Math result not representable.
#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	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	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.
#define	N_ERRNO   125
	total number of error definitions
#define	errno   __sys_errno
Variables
int	__sys_errno
const char *	sys_errlist []
int	sys_nerr

---

Detailed Description

The header <errno.h> defines several macros, all relating to the reporting of error conditions.

Id

errno.h,v 1.15 2005/10/27 20:04:44 morinl Exp

ISO/IEC 9899:1999 (E) Standard ctype <errno.h>

IMPLEMENTATION for apeNEXT:

possible (errno.h)

Definition in file errno.h.

---

Define Documentation

#define E2BIG   7

Argument list too long. Definition at line 144 of file errno.h.

#define EACCES   13

Permission denied. Definition at line 150 of file errno.h.

#define EADDRINUSE   98

Address already in use. Definition at line 234 of file errno.h.

#define EADDRNOTAVAIL   99

Cannot assign requested address. Definition at line 235 of file errno.h.

#define EADV   68

Advertise error. Definition at line 205 of file errno.h.

#define EAFNOSUPPORT   97

Address family not supported by protocol. Definition at line 233 of file errno.h.

#define EAGAIN   11

Try again. Definition at line 148 of file errno.h.

#define EALREADY   114

Operation already in progress. Definition at line 250 of file errno.h.

#define EBADE   52

Invalid exchange. Definition at line 187 of file errno.h.

#define EBADF   9

Bad file number. Definition at line 146 of file errno.h. Referenced by _fsetpos(), and lseek().

#define EBADFD   77

File descriptor in bad state. Definition at line 214 of file errno.h.

#define EBADMSG   74

Not a data message. Definition at line 211 of file errno.h.

#define EBADR   53

Invalid request descriptor. Definition at line 188 of file errno.h.

#define EBADRQC   56

Invalid request code. Definition at line 191 of file errno.h.

#define EBADSLT   57

Invalid slot. Definition at line 192 of file errno.h.

#define EBFONT   59

Bad font file format. Definition at line 196 of file errno.h.

#define EBUSY   16

Device or resource busy. Definition at line 153 of file errno.h.

#define ECHILD   10

No child processes. Definition at line 147 of file errno.h.

#define ECHRNG   44

Channel number out of range. Definition at line 179 of file errno.h.

#define ECOMM   70

Communication error on send. Definition at line 207 of file errno.h.

#define ECONNABORTED   103

Software caused connection abort. Definition at line 239 of file errno.h.

#define ECONNREFUSED   111

Connection refused. Definition at line 247 of file errno.h.

#define ECONNRESET   104

Connection reset by peer. Definition at line 240 of file errno.h.

#define EDEADLK   35

Resource deadlock would occur. Definition at line 170 of file errno.h.

#define EDEADLOCK   EDEADLK

Definition at line 194 of file errno.h.

#define EDESTADDRREQ   89

Destination address required. Definition at line 225 of file errno.h.

#define EDOM   33

Math argument out of domain of func. NAME EDOM - Mathematics argument out of domain of function SYNOPSIS #include <errno.h> #define EDOM <int value> DESCRIPTION EDOM is an identifier, its value is a constant of type int and represents a domain error which is returned by some math functions when a domain error occurs. Note IMPLEMENTATION for apeNEXT: possible (EDOM) Definition at line 84 of file errno.h.

#define EDOTDOT   73

RFS specific error. Definition at line 210 of file errno.h.

#define EDQUOT   122

Quota exceeded. Definition at line 258 of file errno.h.

#define EEXIST   17

File exists. Definition at line 154 of file errno.h.

#define EFAULT   14

Bad address. Definition at line 151 of file errno.h.

#define EFBIG   27

File too large. Definition at line 164 of file errno.h.

#define EHOSTDOWN   112

Host is down. Definition at line 248 of file errno.h.

#define EHOSTUNREACH   113

No route to host. Definition at line 249 of file errno.h.

#define EIDRM   43

Identifier removed. Definition at line 178 of file errno.h.

#define EILSEQ   84

Illegal byte sequence. NAME EILSEQ - Illegal byte sequence. SYNOPSIS #include <errno.h> #define EILSEQ <int value> DESCRIPTION This macro defines an error message if the byte sequence is illegal. A wide-character code for example has been detected that does not correspond to a valid character, or a byte sequence does not form a valid wide-character code. Note IMPLEMENTATION for apeNEXT: possible (EILSEQ) Definition at line 108 of file errno.h.

#define EINPROGRESS   115

Operation now in progress. Definition at line 251 of file errno.h.

#define EINTR   4

Interrupted system call. Definition at line 141 of file errno.h.

#define EINVAL   22

Invalid argument. Definition at line 159 of file errno.h. Referenced by _fsetpos(), and lseek().

#define EIO   5

I/O error. Definition at line 142 of file errno.h.

#define EISCONN   106

Transport endpoint is already connected. Definition at line 242 of file errno.h.

#define EISDIR   21

Is a directory. Definition at line 158 of file errno.h.

#define EISNAM   120

Is a named type file. Definition at line 256 of file errno.h.

#define EL2HLT   51

Level 2 halted. Definition at line 186 of file errno.h.

#define EL2NSYNC   45

Level 2 not synchronized. Definition at line 180 of file errno.h.

#define EL3HLT   46

Level 3 halted. Definition at line 181 of file errno.h.

#define EL3RST   47

Level 3 reset. Definition at line 182 of file errno.h.

#define ELIBACC   79

Can not access a needed shared library. Definition at line 216 of file errno.h.

#define ELIBBAD   80

Accessing a corrupted shared library. Definition at line 217 of file errno.h.

#define ELIBEXEC   83

Cannot exec a shared library directly. Definition at line 220 of file errno.h.

#define ELIBMAX   82

Attempting to link in too many shared libraries. Definition at line 219 of file errno.h.

#define ELIBSCN   81

.lib section in a.out corrupted Definition at line 218 of file errno.h.

#define ELNRNG   48

Link number out of range. Definition at line 183 of file errno.h.

#define ELOOP   40

Too many symbolic links encountered. Definition at line 175 of file errno.h.

#define EMEDIUMTYPE   124

Wrong medium type. Definition at line 261 of file errno.h.

#define EMFILE   24

Too many open files. Definition at line 161 of file errno.h.

#define EMLINK   31

Too many links. Definition at line 168 of file errno.h.

#define EMSGSIZE   90

Message too long. Definition at line 226 of file errno.h.

#define EMULTIHOP   72

Multihop attempted. Definition at line 209 of file errno.h.

#define ENAMETOOLONG   36

File name too long. Definition at line 171 of file errno.h.

#define ENAVAIL   119

No XENIX semaphores available. Definition at line 255 of file errno.h.

#define ENETDOWN   100

Network is down. Definition at line 236 of file errno.h.

#define ENETRESET   102

Network dropped connection because of reset. Definition at line 238 of file errno.h.

#define ENETUNREACH   101

Network is unreachable. Definition at line 237 of file errno.h.

#define ENFILE   23

File table overflow. Definition at line 160 of file errno.h.

#define ENOANO   55

No anode. Definition at line 190 of file errno.h.

#define ENOBUFS   105

No buffer space available. Definition at line 241 of file errno.h.

#define ENOCSI   50

No CSI structure available. Definition at line 185 of file errno.h.

#define ENODATA   61

No data available. Definition at line 198 of file errno.h.

#define ENODEV   19

No such device. Definition at line 156 of file errno.h.

#define ENOENT   2

No such file or directory. Definition at line 139 of file errno.h.

#define ENOEXEC   8

Exec format error. Definition at line 145 of file errno.h.

#define ENOLCK   37

No record locks available. Definition at line 172 of file errno.h.

#define ENOLINK   67

Link has been severed. Definition at line 204 of file errno.h.

#define ENOMEDIUM   123

No medium found. Definition at line 260 of file errno.h.

#define ENOMEM   12

Out of memory. Definition at line 149 of file errno.h.

#define ENOMSG   42

No message of desired type. Definition at line 177 of file errno.h.

#define ENONET   64

Machine is not on the network. Definition at line 201 of file errno.h.

#define ENOPKG   65

Package not installed. Definition at line 202 of file errno.h.

#define ENOPROTOOPT   92

Protocol not available. Definition at line 228 of file errno.h.

#define ENOSPC   28

No space left on device. Definition at line 165 of file errno.h.

#define ENOSR   63

Out of streams resources. Definition at line 200 of file errno.h.

#define ENOSTR   60

Device not a stream. Definition at line 197 of file errno.h.

#define ENOSYS   38

Function not implemented. Definition at line 173 of file errno.h.

#define ENOTBLK   15

Block device required. Definition at line 152 of file errno.h.

#define ENOTCONN   107

Transport endpoint is not connected. Definition at line 243 of file errno.h.

#define ENOTDIR   20

Not a directory. Definition at line 157 of file errno.h.

#define ENOTEMPTY   39

Directory not empty. Definition at line 174 of file errno.h.

#define ENOTNAM   118

Not a XENIX named type file. Definition at line 254 of file errno.h.

#define ENOTSOCK   88

Socket operation on non-socket. Definition at line 224 of file errno.h.

#define ENOTTY   25

Not a typewriter. Definition at line 162 of file errno.h.

#define ENOTUNIQ   76

Name not unique on network. Definition at line 213 of file errno.h.

#define ENXIO   6

No such device or address. Definition at line 143 of file errno.h.

#define EOPNOTSUPP   95

Operation not supported on transport endpoint. Definition at line 231 of file errno.h.

#define EOVERFLOW   75

Value too large for defined data type. Definition at line 212 of file errno.h.

#define EPERM   1

Operation not permitted. Definition at line 138 of file errno.h.

#define EPFNOSUPPORT   96

Protocol family not supported. Definition at line 232 of file errno.h.

#define EPIPE   32

Broken pipe. Definition at line 169 of file errno.h.

#define EPROTO   71

Protocol error. Definition at line 208 of file errno.h.

#define EPROTONOSUPPORT   93

Protocol not supported. Definition at line 229 of file errno.h.

#define EPROTOTYPE   91

Protocol wrong type for socket. Definition at line 227 of file errno.h.

#define ERANGE   34

Math result not representable. NAME ERANGE - Result too large SYNOPSIS #include <errno.h> #define ERANGE <int value> DESCRIPTION ERANGE is an identifier its value is an integer of type int, which represents a range error which is returned by some math functions when a range error occurs. Note IMPLEMENTATION for apeNEXT: possible (ERANGE) Definition at line 131 of file errno.h.

#define EREMCHG   78

Remote address changed. Definition at line 215 of file errno.h.

#define EREMOTE   66

Object is remote. Definition at line 203 of file errno.h.

#define EREMOTEIO   121

Remote I/O error. Definition at line 257 of file errno.h.

#define ERESTART   85

Interrupted system call should be restarted. Definition at line 221 of file errno.h.

#define EROFS   30

Read-only file system. Definition at line 167 of file errno.h.

#define errno   __sys_errno

NAME errno - error numbers SYNOPSIS #include <errno.h> #define errno <int value> DESCRIPTION Variables which have values of zero at the beginning of the program. If an error occurs, then these will be given to <errno> Note Generally most functions can provide an error number. The means by which each function provides its error numbers is specified in its description. Some functions provide the error number in a variable accessed through the symbol errno. The symbol errno, defined by including this header file <errno.h>, is a macro that expands to a modifiable lvalue of type int. The value of errno should only be examined when it is indicated to be valid by a function's return value. No function in this specification sets errno to zero to indicate an error. For each thread of a process, the value of errno is not affected by function calls or assignments to errno by other threads. Some functions return an error number directly as the function value. These functions return a value of zero to indicate success. If more than one error occurs in processing a function call, any one of the possible errors may be returned, as the order of detection is undefined. The implementations may support additional errors not included in this the above given list, may generate errors included in this list under circumstances other than those described here, or may contain extensions or limitations that prevent some errors from occurring. The ERRORS section on each page specifies whether an error will be returned, or whether it may be returned. Implementations will not generate a different error number from the ones described here for error conditions described in this specification, but may generate additional errors unless explicitly disallowed for a particular function. As referred above the errors are given as symbolic names identify the possible error numbers, in the context of the functions specifically defined in this specification. Only these symbolic names should be used in programs, since the actual value of the error number is unspecified. All values listed in this list should be unique. The values for all these names are to be found in this header <errno.h>. For example: EADDRINUSE] Address in use The specified address is in use. [EADDRNOTAVAIL] Address not available The specified address is not available from the local system. [EAFNOSUPPORT] Address family not supported The implementation does not support the specified address family, or the specified address is not a valid address for the address family of the specified socket. [EAGAIN] Resource temporarily unavailable This is a temporary condition and later calls to the same routine may complete normally. [EALREADY] Connection already in progress A connection request is already in progress for the specified socket. [EBADF] Bad file descriptor A file descriptor argument is out of range, refers to no open file, or a read (write) request is made to a file that is only open for writing (reading). IMPLEMENTATION for apeNEXT: possible (errno) Definition at line 332 of file errno.h. Referenced by _fsetpos(), lseek(), and remove().

#define ESHUTDOWN   108

Cannot send after transport endpoint shutdown. Definition at line 244 of file errno.h.

#define ESOCKTNOSUPPORT   94

Socket type not supported. Definition at line 230 of file errno.h.

#define ESPIPE   29

Illegal seek. Definition at line 166 of file errno.h.

#define ESRCH   3

No such process. Definition at line 140 of file errno.h.

#define ESRMNT   69

Srmount error. Definition at line 206 of file errno.h.

#define ESTALE   116

Stale NFS file handle. Definition at line 252 of file errno.h.

#define ESTRPIPE   86

Streams pipe error. Definition at line 222 of file errno.h.

#define ETIME   62

Timer expired. Definition at line 199 of file errno.h.

#define ETIMEDOUT   110

Connection timed out. Definition at line 246 of file errno.h.

#define ETOOMANYREFS   109

Too many references: cannot splice. Definition at line 245 of file errno.h.

#define ETXTBSY   26

Text file busy. Definition at line 163 of file errno.h.

#define EUCLEAN   117

Structure needs cleaning. Definition at line 253 of file errno.h.

#define EUNATCH   49

Protocol driver not attached. Definition at line 184 of file errno.h.

#define EUSERS   87

Too many users. Definition at line 223 of file errno.h.

#define EWOULDBLOCK   EAGAIN

Operation would block. Definition at line 176 of file errno.h.

#define EXDEV   18

Cross-device link. Definition at line 155 of file errno.h.

#define EXFULL   54

Exchange full. Definition at line 189 of file errno.h.

#define N_ERRNO   125

total number of error definitions Definition at line 263 of file errno.h. Referenced by strerror().

---

Variable Documentation

int __sys_errno

Definition at line 473 of file errno.h.

const char* sys_errlist[]

Definition at line 474 of file errno.h. Referenced by strerror().

int sys_nerr

Definition at line 475 of file errno.h.

---