errno2result.c revision 70e5a7403f0e0a3bd292b8287c5fed5772c15270
/*
* Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 2000-2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: errno2result.c,v 1.14 2007/06/19 23:47:19 tbox Exp $ */
#include <config.h>
#include <winsock2.h>
#include "errno2result.h"
#include <isc/result.h>
#include <isc/strerror.h>
#include <isc/util.h>
/*
* Convert a POSIX errno value into an isc_result_t. The
* list of supported errno values is not complete; new users
* of this function should add any expected errors that are
* not already there.
*/
isc_result_t
isc__errno2resultx(int posixerrno, const char *file, int line) {
char strbuf[ISC_STRERRORSIZE];
switch (posixerrno) {
case ENOTDIR:
case WSAELOOP:
case WSAEINVAL:
case EINVAL: /* XXX sometimes this is not for files */
case ENAMETOOLONG:
case WSAENAMETOOLONG:
case EBADF:
case WSAEBADF:
return (ISC_R_INVALIDFILE);
case ENOENT:
return (ISC_R_FILENOTFOUND);
case EACCES:
case WSAEACCES:
case EPERM:
return (ISC_R_NOPERM);
case EEXIST:
return (ISC_R_FILEEXISTS);
case EIO:
return (ISC_R_IOERROR);
case ENOMEM:
return (ISC_R_NOMEMORY);
case ENFILE:
case EMFILE:
case WSAEMFILE:
return (ISC_R_TOOMANYOPENFILES);
case ERROR_OPERATION_ABORTED:
return (ISC_R_CONNECTIONRESET);
case ERROR_PORT_UNREACHABLE:
return (ISC_R_HOSTUNREACH);
case ERROR_HOST_UNREACHABLE:
return (ISC_R_HOSTUNREACH);
case ERROR_NETWORK_UNREACHABLE:
return (ISC_R_NETUNREACH);
case WSAEADDRNOTAVAIL:
return (ISC_R_ADDRNOTAVAIL);
case WSAEHOSTUNREACH:
return (ISC_R_HOSTUNREACH);
case WSAEHOSTDOWN:
return (ISC_R_HOSTUNREACH);
case WSAENETUNREACH:
return (ISC_R_NETUNREACH);
case WSAENOBUFS:
return (ISC_R_NORESOURCES);
default:
isc__strerror(posixerrno, strbuf, sizeof(strbuf));
UNEXPECTED_ERROR(file, line, "unable to convert errno "
"to isc_result: %d: %s", posixerrno, strbuf);
/*
* XXXDCL would be nice if perhaps this function could
* return the system's error string, so the caller
* might have something more descriptive than "unexpected
* error" to log with.
*/
return (ISC_R_UNEXPECTED);
}
}