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error.c
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/*
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* lib/error.c Error Handling
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* Copyright (c) 2008 Thomas Graf <tgraf@suug.ch>
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*/
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#include <netlink-private/netlink.h>
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#include <netlink/netlink.h>
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static
const
char
*errmsg[NLE_MAX+1] = {
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[NLE_SUCCESS] =
"Success"
,
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[NLE_FAILURE] =
"Unspecific failure"
,
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[NLE_INTR] =
"Interrupted system call"
,
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[NLE_BAD_SOCK] =
"Bad socket"
,
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[NLE_AGAIN] =
"Try again"
,
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[NLE_NOMEM] =
"Out of memory"
,
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[NLE_EXIST] =
"Object exists"
,
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[NLE_INVAL] =
"Invalid input data or parameter"
,
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[NLE_RANGE] =
"Input data out of range"
,
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[NLE_MSGSIZE] =
"Message size not sufficient"
,
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[NLE_OPNOTSUPP] =
"Operation not supported"
,
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[NLE_AF_NOSUPPORT] =
"Address family not supported"
,
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[NLE_OBJ_NOTFOUND] =
"Object not found"
,
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[NLE_NOATTR] =
"Attribute not available"
,
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[NLE_MISSING_ATTR] =
"Missing attribute"
,
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[NLE_AF_MISMATCH] =
"Address family mismatch"
,
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[NLE_SEQ_MISMATCH] =
"Message sequence number mismatch"
,
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[NLE_MSG_OVERFLOW] =
"Kernel reported message overflow"
,
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[NLE_MSG_TRUNC] =
"Kernel reported truncated message"
,
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[NLE_NOADDR] =
"Invalid address for specified address family"
,
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[NLE_SRCRT_NOSUPPORT] =
"Source based routing not supported"
,
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[NLE_MSG_TOOSHORT] =
"Netlink message is too short"
,
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[NLE_MSGTYPE_NOSUPPORT] =
"Netlink message type is not supported"
,
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[NLE_OBJ_MISMATCH] =
"Object type does not match cache"
,
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[NLE_NOCACHE] =
"Unknown or invalid cache type"
,
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[NLE_BUSY] =
"Object busy"
,
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[NLE_PROTO_MISMATCH] =
"Protocol mismatch"
,
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[NLE_NOACCESS] =
"No Access"
,
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[NLE_PERM] =
"Operation not permitted"
,
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[NLE_PKTLOC_FILE] =
"Unable to open packet location file"
,
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[NLE_PARSE_ERR] =
"Unable to parse object"
,
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[NLE_NODEV] =
"No such device"
,
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[NLE_IMMUTABLE] =
"Immutable attribute"
,
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[NLE_DUMP_INTR] =
"Dump inconsistency detected, interrupted"
,
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};
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/**
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* Return error message for an error code
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* @return error message
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*/
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const
char
*nl_geterror(
int
error)
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{
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error = abs(error);
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if
(error > NLE_MAX)
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error = NLE_FAILURE;
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return
errmsg[error];
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}
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/**
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* Print a libnl error message
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* @arg s error message prefix
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*
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* Prints the error message of the call that failed last.
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*
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* If s is not NULL and *s is not a null byte the argument
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* string is printed, followed by a colon and a blank. Then
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* the error message and a new-line.
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*/
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void
nl_perror(
int
error,
const
char
*s)
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{
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if
(s && *s)
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fprintf(stderr,
"%s: %s\n"
, s, nl_geterror(error));
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else
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fprintf(stderr,
"%s\n"
, nl_geterror(error));
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}
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int
nl_syserr2nlerr(
int
error)
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{
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error = abs(error);
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switch
(error) {
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case
EBADF:
return
NLE_BAD_SOCK;
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case
EADDRINUSE:
return
NLE_EXIST;
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case
EEXIST:
return
NLE_EXIST;
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case
EADDRNOTAVAIL:
return
NLE_NOADDR;
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case
ESRCH:
/* fall through */
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case
ENOENT:
return
NLE_OBJ_NOTFOUND;
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case
EINTR:
return
NLE_INTR;
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case
EAGAIN:
return
NLE_AGAIN;
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case
ENOTSOCK:
return
NLE_BAD_SOCK;
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case
ENOPROTOOPT:
return
NLE_INVAL;
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case
EFAULT:
return
NLE_INVAL;
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case
EACCES:
return
NLE_NOACCESS;
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case
EINVAL:
return
NLE_INVAL;
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case
ENOBUFS:
return
NLE_NOMEM;
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case
ENOMEM:
return
NLE_NOMEM;
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case
EAFNOSUPPORT:
return
NLE_AF_NOSUPPORT;
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case
EPROTONOSUPPORT:
return
NLE_PROTO_MISMATCH;
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case
EOPNOTSUPP:
return
NLE_OPNOTSUPP;
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case
EPERM:
return
NLE_PERM;
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case
EBUSY:
return
NLE_BUSY;
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case
ERANGE:
return
NLE_RANGE;
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case
ENODEV:
return
NLE_NODEV;
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default
:
return
NLE_FAILURE;
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}
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}
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/** @} */
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lib
error.c
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