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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file */
#include "errno2result.h"
#include <stdbool.h>
#include <isc/platform.h>
#include <isc/result.h>
#include <isc/strerr.h>
#include <isc/string.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___errno2result(int posixerrno, bool dolog, const char *file,
unsigned int line) {
char strbuf[ISC_STRERRORSIZE];
switch (posixerrno) {
case ENOTDIR:
case ELOOP:
case EINVAL: /* XXX sometimes this is not for files */
case ENAMETOOLONG:
case EBADF:
return (ISC_R_INVALIDFILE);
case ENOENT:
return (ISC_R_FILENOTFOUND);
case EACCES:
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:
return (ISC_R_TOOMANYOPENFILES);
#ifdef EDQUOT
case EDQUOT:
return (ISC_R_DISCQUOTA);
#endif /* ifdef EDQUOT */
case ENOSPC:
return (ISC_R_DISCFULL);
#ifdef EOVERFLOW
case EOVERFLOW:
return (ISC_R_RANGE);
#endif /* ifdef EOVERFLOW */
case EPIPE:
#ifdef ECONNRESET
case ECONNRESET:
#endif /* ifdef ECONNRESET */
#ifdef ECONNABORTED
case ECONNABORTED:
#endif /* ifdef ECONNABORTED */
return (ISC_R_CONNECTIONRESET);
#ifdef ENOTCONN
case ENOTCONN:
return (ISC_R_NOTCONNECTED);
#endif /* ifdef ENOTCONN */
#ifdef ETIMEDOUT
case ETIMEDOUT:
return (ISC_R_TIMEDOUT);
#endif /* ifdef ETIMEDOUT */
#ifdef ENOBUFS
case ENOBUFS:
return (ISC_R_NORESOURCES);
#endif /* ifdef ENOBUFS */
#ifdef EAFNOSUPPORT
case EAFNOSUPPORT:
return (ISC_R_FAMILYNOSUPPORT);
#endif /* ifdef EAFNOSUPPORT */
#ifdef ENETDOWN
case ENETDOWN:
return (ISC_R_NETDOWN);
#endif /* ifdef ENETDOWN */
#ifdef EHOSTDOWN
case EHOSTDOWN:
return (ISC_R_HOSTDOWN);
#endif /* ifdef EHOSTDOWN */
#ifdef ENETUNREACH
case ENETUNREACH:
return (ISC_R_NETUNREACH);
#endif /* ifdef ENETUNREACH */
#ifdef EHOSTUNREACH
case EHOSTUNREACH:
return (ISC_R_HOSTUNREACH);
#endif /* ifdef EHOSTUNREACH */
#ifdef EADDRINUSE
case EADDRINUSE:
return (ISC_R_ADDRINUSE);
#endif /* ifdef EADDRINUSE */
case EADDRNOTAVAIL:
return (ISC_R_ADDRNOTAVAIL);
case ECONNREFUSED:
return (ISC_R_CONNREFUSED);
default:
if (dolog) {
strerror_r(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);
}
}
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