1/* 2 * Copyright (C) Internet Systems Consortium, Inc. ("ISC") 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 9 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 10 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 11 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 12 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 13 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 14 * PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17/* $Id: errno2result.c,v 1.5 2020/09/14 08:40:44 florian Exp $ */ 18 19/*! \file */ 20 21#include <errno.h> 22#include <string.h> 23 24#include <isc/result.h> 25#include <isc/util.h> 26 27#include "errno2result.h" 28 29/*% 30 * Convert a POSIX errno value into an isc_result_t. The 31 * list of supported errno values is not complete; new users 32 * of this function should add any expected errors that are 33 * not already there. 34 */ 35isc_result_t 36isc___errno2result(int posixerrno, int dolog, 37 const char *file, unsigned int line) 38{ 39 switch (posixerrno) { 40 case ENOTDIR: 41 case ELOOP: 42 case EINVAL: /* XXX sometimes this is not for files */ 43 case ENAMETOOLONG: 44 case EBADF: 45 return (ISC_R_INVALIDFILE); 46 case ENOENT: 47 return (ISC_R_FILENOTFOUND); 48 case EACCES: 49 case EPERM: 50 return (ISC_R_NOPERM); 51 case EEXIST: 52 return (ISC_R_FILEEXISTS); 53 case EIO: 54 return (ISC_R_IOERROR); 55 case ENOMEM: 56 return (ISC_R_NOMEMORY); 57 case ENFILE: 58 case EMFILE: 59 return (ISC_R_TOOMANYOPENFILES); 60 case EOVERFLOW: 61 return (ISC_R_RANGE); 62 case EPIPE: 63 case ECONNRESET: 64 case ECONNABORTED: 65 return (ISC_R_CONNECTIONRESET); 66 case ENOTCONN: 67 return (ISC_R_NOTCONNECTED); 68 case ETIMEDOUT: 69 return (ISC_R_TIMEDOUT); 70 case ENOBUFS: 71 return (ISC_R_NORESOURCES); 72 case EAFNOSUPPORT: 73 return (ISC_R_FAMILYNOSUPPORT); 74 case ENETDOWN: 75 return (ISC_R_NETDOWN); 76 case EHOSTDOWN: 77 return (ISC_R_HOSTDOWN); 78 case ENETUNREACH: 79 return (ISC_R_NETUNREACH); 80 case EHOSTUNREACH: 81 return (ISC_R_HOSTUNREACH); 82 case EADDRINUSE: 83 return (ISC_R_ADDRINUSE); 84 case EADDRNOTAVAIL: 85 return (ISC_R_ADDRNOTAVAIL); 86 case ECONNREFUSED: 87 return (ISC_R_CONNREFUSED); 88 default: 89 if (dolog) { 90 UNEXPECTED_ERROR(file, line, "unable to convert errno " 91 "to isc_result: %d: %s", 92 posixerrno, strerror(posixerrno)); 93 } 94 /* 95 * XXXDCL would be nice if perhaps this function could 96 * return the system's error string, so the caller 97 * might have something more descriptive than "unexpected 98 * error" to log with. 99 */ 100 return (ISC_R_UNEXPECTED); 101 } 102} 103