errno2result.c revision 280849 
191100Sdes/*
292289Sdes * Copyright (C) 2004, 2005, 2007, 2008  Internet Systems Consortium, Inc. ("ISC")
391100Sdes * Copyright (C) 2000-2002  Internet Software Consortium.
491100Sdes *
591100Sdes * Permission to use, copy, modify, and/or distribute this software for any
699158Sdes * purpose with or without fee is hereby granted, provided that the above
799158Sdes * copyright notice and this permission notice appear in all copies.
899158Sdes *
991100Sdes * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
1091100Sdes * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
1191100Sdes * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
1291100Sdes * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
1391100Sdes * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
1491100Sdes * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
1591100Sdes * PERFORMANCE OF THIS SOFTWARE.
1691100Sdes */
1791100Sdes
1891100Sdes/* $Id: errno2result.c,v 1.17 2008/09/12 04:46:25 marka Exp $ */
1991100Sdes
2091100Sdes#include <config.h>
2191100Sdes
2291100Sdes#include <winsock2.h>
2391100Sdes#include "errno2result.h"
2491100Sdes#include <isc/result.h>
2591100Sdes#include <isc/strerror.h>
2691100Sdes#include <isc/util.h>
2791100Sdes
2891100Sdes/*
2991100Sdes * Convert a POSIX errno value into an isc_result_t.  The
3091100Sdes * list of supported errno values is not complete; new users
3191100Sdes * of this function should add any expected errors that are
3291100Sdes * not already there.
3391100Sdes */
3499158Sdesisc_result_t
3591100Sdesisc__errno2resultx(int posixerrno, const char *file, int line) {
3691100Sdes	char strbuf[ISC_STRERRORSIZE];
3791100Sdes
3891100Sdes	switch (posixerrno) {
3991100Sdes	case ENOTDIR:
4091100Sdes	case WSAELOOP:
4191100Sdes	case WSAEINVAL:
4291100Sdes	case EINVAL:		/* XXX sometimes this is not for files */
4391100Sdes	case ENAMETOOLONG:
4491100Sdes	case WSAENAMETOOLONG:
4591100Sdes	case EBADF:
4691100Sdes	case WSAEBADF:
4791100Sdes		return (ISC_R_INVALIDFILE);
4891100Sdes	case ENOENT:
4991100Sdes		return (ISC_R_FILENOTFOUND);
5091100Sdes	case EACCES:
5191100Sdes	case WSAEACCES:
5291100Sdes	case EPERM:
5391100Sdes		return (ISC_R_NOPERM);
5491100Sdes	case EEXIST:
5591100Sdes		return (ISC_R_FILEEXISTS);
5691100Sdes	case EIO:
5791100Sdes		return (ISC_R_IOERROR);
5891100Sdes	case ENOMEM:
5991100Sdes		return (ISC_R_NOMEMORY);
6091100Sdes	case ENFILE:
6191100Sdes	case EMFILE:
6291100Sdes	case WSAEMFILE:
6391100Sdes		return (ISC_R_TOOMANYOPENFILES);
6491100Sdes	case ERROR_CANCELLED:
6591100Sdes		return (ISC_R_CANCELED);
66	case ERROR_CONNECTION_REFUSED:
67	case WSAECONNREFUSED:
68		return (ISC_R_CONNREFUSED);
69	case WSAENOTCONN:
70	case ERROR_CONNECTION_INVALID:
71		return (ISC_R_NOTCONNECTED);
72	case ERROR_HOST_UNREACHABLE:
73	case WSAEHOSTUNREACH:
74		return (ISC_R_HOSTUNREACH);
75	case ERROR_NETWORK_UNREACHABLE:
76	case WSAENETUNREACH:
77		return (ISC_R_NETUNREACH);
78	case ERROR_NO_NETWORK:
79		return (ISC_R_NETUNREACH);
80	case ERROR_PORT_UNREACHABLE:
81		return (ISC_R_HOSTUNREACH);
82	case ERROR_SEM_TIMEOUT:
83		return (ISC_R_TIMEDOUT);
84	case WSAECONNRESET:
85	case WSAENETRESET:
86	case WSAECONNABORTED:
87	case WSAEDISCON:
88	case ERROR_OPERATION_ABORTED:
89	case ERROR_CONNECTION_ABORTED:
90	case ERROR_REQUEST_ABORTED:
91		return (ISC_R_CONNECTIONRESET);
92	case WSAEADDRNOTAVAIL:
93		return (ISC_R_ADDRNOTAVAIL);
94	case ERROR_NETNAME_DELETED:
95	case WSAENETDOWN:
96		return (ISC_R_NETUNREACH);
97	case WSAEHOSTDOWN:
98		return (ISC_R_HOSTUNREACH);
99	case WSAENOBUFS:
100		return (ISC_R_NORESOURCES);
101	default:
102		isc__strerror(posixerrno, strbuf, sizeof(strbuf));
103		UNEXPECTED_ERROR(file, line, "unable to convert errno "
104				 "to isc_result: %d: %s", posixerrno, strbuf);
105		/*
106		 * XXXDCL would be nice if perhaps this function could
107		 * return the system's error string, so the caller
108		 * might have something more descriptive than "unexpected
109		 * error" to log with.
110		 */
111		return (ISC_R_UNEXPECTED);
112	}
113}
114