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/* Mapping Error Numbers to their names
* Copyright (C) 2010 Chris Hall (GMCH), Highwayman
*
* This file is part of GNU Zebra.
*
* GNU Zebra is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2, or (at your
* option) any later version.
*
* GNU Zebra is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Zebra; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "misc.h"
#include <errno.h>
#include <netdb.h>
#include "errno_names.h"
/*==============================================================================
* Table to map error number to its name
*/
#define ERRNO(err) [err] = #err
static const char* errno_name_table[] =
{
/* Error number for no error
*
* (123456789012345), /-- no name is more than 15 characters
*/
ERRNO(EOK), /* No error */
/* POSIX Error Numbers -- taken Open Group Base Specifications Issue 7
* IEEE Std 1003.1-2008
*
* Stream related stuff does not seeem to be fully supported.
*/
ERRNO(E2BIG), /* Argument list too long. */
ERRNO(EACCES), /* Permission denied. */
ERRNO(EADDRINUSE), /* Address in use. */
ERRNO(EADDRNOTAVAIL), /* Address not available. */
ERRNO(EAFNOSUPPORT), /* Address family not supported. */
#if EAGAIN != EWOULDBLOCK
ERRNO(EAGAIN), /* Resource unavailable, try again
(may be the same value as [EWOULDBLOCK]). */
#endif
ERRNO(EALREADY), /* Connection already in progress. */
ERRNO(EBADF), /* Bad file descriptor. */
ERRNO(EBADMSG), /* Bad message. */
ERRNO(EBUSY), /* Device or resource busy. */
ERRNO(ECANCELED), /* Operation canceled. */
ERRNO(ECHILD), /* No child processes. */
ERRNO(ECONNABORTED), /* Connection aborted. */
ERRNO(ECONNREFUSED), /* Connection refused. */
ERRNO(ECONNRESET), /* Connection reset. */
ERRNO(EDEADLK), /* Resource deadlock would occur. */
ERRNO(EDESTADDRREQ), /* Destination address required. */
ERRNO(EDOM), /* Mathematics argument out of domain of function. */
ERRNO(EDQUOT), /* Reserved. */
ERRNO(EEXIST), /* File exists. */
ERRNO(EFAULT), /* Bad address. */
ERRNO(EFBIG), /* File too large. */
ERRNO(EHOSTUNREACH), /* Host is unreachable. */
ERRNO(EIDRM), /* Identifier removed. */
ERRNO(EILSEQ), /* Illegal byte sequence. */
ERRNO(EINPROGRESS), /* Operation in progress. */
ERRNO(EINTR), /* Interrupted function. */
ERRNO(EINVAL), /* Invalid argument. */
ERRNO(EIO), /* I/O error. */
ERRNO(EISCONN), /* Socket is connected. */
ERRNO(EISDIR), /* Is a directory. */
ERRNO(ELOOP), /* Too many levels of symbolic links. */
ERRNO(EMFILE), /* File descriptor value too large. */
ERRNO(EMLINK), /* Too many links. */
ERRNO(EMSGSIZE), /* Message too large. */
ERRNO(EMULTIHOP), /* Reserved. */
ERRNO(ENAMETOOLONG), /* Filename too long. */
ERRNO(ENETDOWN), /* Network is down. */
ERRNO(ENETRESET), /* Connection aborted by network. */
ERRNO(ENETUNREACH), /* Network unreachable. */
ERRNO(ENFILE), /* Too many files open in system. */
ERRNO(ENOBUFS), /* No buffer space available. */
#ifdef ENODATA
ERRNO(ENODATA), /* No message is available on the STREAM head read
queue. */
#endif
ERRNO(ENODEV), /* No such device. */
ERRNO(ENOENT), /* No such file or directory. */
ERRNO(ENOEXEC), /* Executable file format error. */
ERRNO(ENOLCK), /* No locks available. */
ERRNO(ENOLINK), /* Reserved. */
ERRNO(ENOMEM), /* Not enough space. */
ERRNO(ENOMSG), /* No message of the desired type. */
ERRNO(ENOPROTOOPT), /* Protocol not available. */
ERRNO(ENOSPC), /* No space left on device. */
#ifdef ENOSR
ERRNO(ENOSR), /* No STREAM resources. */
#endif
#ifdef ENOSTR
ERRNO(ENOSTR), /* Not a STREAM. */
#endif
ERRNO(ENOSYS), /* Function not supported. */
ERRNO(ENOTCONN), /* The socket is not connected. */
ERRNO(ENOTDIR), /* Not a directory. */
ERRNO(ENOTEMPTY), /* Directory not empty. */
#ifdef ENOTRECOVERABLE
ERRNO(ENOTRECOVERABLE), /* State not recoverable. */
#endif
ERRNO(ENOTSOCK), /* Not a socket. */
ERRNO(ENOTSUP), /* Not supported
(may be the same value as [EOPNOTSUPP]). */
ERRNO(ENOTTY), /* Inappropriate I/O control operation. */
ERRNO(ENXIO), /* No such device or address. */
#if EOPNOTSUPP != ENOTSUP
ERRNO(EOPNOTSUPP), /* Operation not supported on socket
(may be the same value as [ENOTSUP]). */
#endif
ERRNO(EOVERFLOW), /* Value too large to be stored in data type. */
#ifdef EOWNERDEAD
ERRNO(EOWNERDEAD), /* Previous owner died. */
#endif
ERRNO(EPERM), /* Operation not permitted. */
ERRNO(EPIPE), /* Broken pipe. */
ERRNO(EPROTO), /* Protocol error. */
ERRNO(EPROTONOSUPPORT), /* Protocol not supported. */
ERRNO(EPROTOTYPE), /* Protocol wrong type for socket. */
ERRNO(ERANGE), /* Result too large. */
ERRNO(EROFS), /* Read-only file system. */
ERRNO(ESPIPE), /* Invalid seek. */
ERRNO(ESRCH), /* No such process. */
ERRNO(ESTALE), /* Reserved. */
#ifdef ETIME
ERRNO(ETIME), /* Stream ioctl() timeout. */
#endif
ERRNO(ETIMEDOUT), /* Connection timed out. */
ERRNO(ETXTBSY), /* Text file busy. */
ERRNO(EWOULDBLOCK), /* Operation would block
(may be the same value as [EAGAIN]). */
ERRNO(EXDEV), /* Cross-device link. */
/* Linux Error Numbers -- for 2.6.30, taken 8-Apr-2010.
*
* (123456789012345), /-- no name is more than 15 characters
*/
#ifdef EADV
ERRNO(EADV), /* Advertise error */
#endif
#ifdef EBADE
ERRNO(EBADE), /* Invalid exchange */
#endif
#ifdef EBADFD
ERRNO(EBADFD), /* File descriptor in bad state */
#endif
#ifdef EBADR
ERRNO(EBADR), /* Invalid request descriptor */
#endif
#ifdef EBADRQC
ERRNO(EBADRQC), /* Invalid request code */
#endif
#ifdef EBADSLT
ERRNO(EBADSLT), /* Invalid slot */
#endif
#ifdef EBFONT
ERRNO(EBFONT), /* Bad font file format */
#endif
#ifdef ECHRNG
ERRNO(ECHRNG), /* Channel number out of range */
#endif
#ifdef ECOMM
ERRNO(ECOMM), /* Communication error on send */
#endif
#ifdef EDEADLOCK
ERRNO(EDEADLOCK), /* same as EDEADLK */
#endif
#ifdef EDOTDOT
ERRNO(EDOTDOT), /* RFS specific error */
#endif
#ifdef EHOSTDOWN
ERRNO(EHOSTDOWN), /* Host is down */
#endif
#ifdef EISNAM
ERRNO(EISNAM), /* Is a named type file */
#endif
#ifdef EKEYEXPIRED
ERRNO(EKEYEXPIRED), /* Key has expired */
#endif
#ifdef EKEYREJECTED
ERRNO(EKEYREJECTED), /* Key was rejected by service */
#endif
#ifdef EKEYREVOKED
ERRNO(EKEYREVOKED), /* Key has been revoked */
#endif
#ifdef EL2HLT
ERRNO(EL2HLT), /* Level 2 halted */
#endif
#ifdef EL2NSYNC
ERRNO(EL2NSYNC), /* Level 2 not synchronized */
#endif
#ifdef EL3HLT
ERRNO(EL3HLT), /* Level 3 halted */
#endif
#ifdef EL3RST
ERRNO(EL3RST), /* Level 3 reset */
#endif
#ifdef ELIBACC
ERRNO(ELIBACC), /* Can not access a needed shared library */
#endif
#ifdef ELIBBAD
ERRNO(ELIBBAD), /* Accessing a corrupted shared library */
#endif
#ifdef ELIBEXEC
ERRNO(ELIBEXEC), /* Cannot exec a shared library directly */
#endif
#ifdef ELIBMAX
ERRNO(ELIBMAX), /* Attempting to link in too many shared libraries */
#endif
#ifdef ELIBSCN
ERRNO(ELIBSCN), /* .lib section in a.out corrupted */
#endif
#ifdef ELNRNG
ERRNO(ELNRNG), /* Link number out of range */
#endif
#ifdef EMEDIUMTYPE
ERRNO(EMEDIUMTYPE), /* Wrong medium type */
#endif
#ifdef ENAVAIL
ERRNO(ENAVAIL), /* No XENIX semaphores available */
#endif
#ifdef ENOANO
ERRNO(ENOANO), /* No anode */
#endif
#ifdef ENOCSI
ERRNO(ENOCSI), /* No CSI structure available */
#endif
#ifdef ENOKEY
ERRNO(ENOKEY), /* Required key not available */
#endif
#ifdef ENOMEDIUM
ERRNO(ENOMEDIUM), /* No medium found */
#endif
#ifdef ENONET
ERRNO(ENONET), /* Machine is not on the network */
#endif
#ifdef ENOPKG
ERRNO(ENOPKG), /* Package not installed */
#endif
#ifdef ENOTBLK
ERRNO(ENOTBLK), /* Block device required */
#endif
#ifdef ENOTNAM
ERRNO(ENOTNAM), /* Not a XENIX named type file */
#endif
#ifdef ENOTUNIQ
ERRNO(ENOTUNIQ), /* Name not unique on network */
#endif
#ifdef EPFNOSUPPORT
ERRNO(EPFNOSUPPORT), /* Protocol family not supported */
#endif
#ifdef EREMCHG
ERRNO(EREMCHG), /* Remote address changed */
#endif
#ifdef EREMOTE
ERRNO(EREMOTE), /* Object is remote */
#endif
#ifdef EREMOTEIO
ERRNO(EREMOTEIO), /* Remote I/O error */
#endif
#ifdef ERESTART
ERRNO(ERESTART), /* Interrupted system call should be restarted */
#endif
#ifdef ESHUTDOWN
ERRNO(ESHUTDOWN), /* Cannot send after transport endpoint shutdown */
#endif
#ifdef ESOCKTNOSUPPORT
ERRNO(ESOCKTNOSUPPORT), /* Socket type not supported */
#endif
#ifdef ESRMNT
ERRNO(ESRMNT), /* Srmount error */
#endif
#ifdef ESTRPIPE
ERRNO(ESTRPIPE), /* Streams pipe error */
#endif
#ifdef ETOOMANYREFS
ERRNO(ETOOMANYREFS), /* Too many references: cannot splice */
#endif
#ifdef EUCLEAN
ERRNO(EUCLEAN), /* Structure needs cleaning */
#endif
#ifdef EUNATCH
ERRNO(EUNATCH), /* Protocol driver not attached */
#endif
#ifdef EUSERS
ERRNO(EUSERS), /* Too many users */
#endif
#ifdef EXFULL
ERRNO(EXFULL), /* Exchange full */
#endif
} ;
enum { errno_last = (sizeof(errno_name_table) / sizeof(char*)) - 1 } ;
/*------------------------------------------------------------------------------
* Lookup the name for given error number.
*
* Returns: address of string, or NULL if not known
*
* NB: for 0 returns "EOK".
*
* NB: async-signal-safe and thread-safe !
*/
extern const char*
errno_name_lookup(int err)
{
if ((err < 0) || (err > errno_last))
return NULL ;
return errno_name_table[err] ;
} ;
/*==============================================================================
* Table to map EAI error number to its name -- the errors generated by
* getaddrinfo() and getnameinfo().
*
* At least one system uses -ve numbers for these... so the following will
* support either +ve or -ve values, provided that all have the same sign.
*/
#if EAI_AGAIN < 0
enum { eai_sgn = -1 } ;
#else
enum { eai_sgn = +1 } ;
#endif
#define EAINO(eai) [eai * eai_sgn] = #eai
static const char* eaino_name_table[] =
{
/* Error number for no error
*
* (123456789012345), /-- no name is more than 15 characters
*/
EAINO(EAI_OK), /* No error */
/* POSIX Error Numbers -- taken Open Group Base Specifications Issue 7
* IEEE Std 1003.1-2008
*/
EAINO(EAI_AGAIN), /* Temporary failure in name resolution. */
EAINO(EAI_BADFLAGS), /* Invalid value for 'ai_flags' field. */
EAINO(EAI_FAIL), /* Non-recoverable failure in name res. */
EAINO(EAI_FAMILY), /* 'ai_family' not supported. */
EAINO(EAI_MEMORY), /* Memory allocation failure. */
EAINO(EAI_NONAME), /* NAME or SERVICE is unknown. */
EAINO(EAI_OVERFLOW), /* Argument buffer overflow. */
EAINO(EAI_SERVICE), /* SERVICE not supported for 'ai_socktype'. */
EAINO(EAI_SOCKTYPE), /* 'ai_socktype' not supported. */
EAINO(EAI_SYSTEM), /* System error returned in 'errno'. */
} ;
enum { eaino_last = (sizeof(eaino_name_table) / sizeof(char*)) - 1 } ;
/*------------------------------------------------------------------------------
* Lookup the name for given error number.
*
* Returns: address of string, or NULL if not known
*
* NB: for 0 returns "EOK".
*
* NB: async-signal-safe and thread-safe !
*/
extern const char*
eaino_name_lookup(int eai)
{
eai *= eai_sgn ;
if ((eai < 0) || (eai > eaino_last))
return NULL ;
return eaino_name_table[eai] ;
} ;
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