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272
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1 /* strerror.c --- POSIX compatible system error routine
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2
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3 Copyright (C) 2007-2008 Free Software Foundation, Inc.
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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17
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18 #include <config.h>
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19
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20 #include <string.h>
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21
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22 #if REPLACE_STRERROR
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23
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24 # include <errno.h>
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25 # include <stdio.h>
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26
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27 # if GNULIB_defined_ESOCK /* native Windows platforms */
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28 # if HAVE_WINSOCK2_H
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29 # include <winsock2.h>
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30 # endif
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31 # endif
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32
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33 # include "intprops.h"
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34
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35 # undef strerror
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36 # if ! HAVE_DECL_STRERROR
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37 # define strerror(n) NULL
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38 # endif
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39
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40 char *
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41 rpl_strerror (int n)
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42 {
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43 /* These error messages are taken from glibc/sysdeps/gnu/errlist.c. */
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44 switch (n)
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45 {
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46 # if GNULIB_defined_ETXTBSY
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47 case ETXTBSY:
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48 return "Text file busy";
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49 # endif
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50
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51 # if GNULIB_defined_ESOCK /* native Windows platforms */
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52 /* EWOULDBLOCK is the same as EAGAIN. */
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53 case EINPROGRESS:
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54 return "Operation now in progress";
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55 case EALREADY:
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56 return "Operation already in progress";
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57 case ENOTSOCK:
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58 return "Socket operation on non-socket";
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59 case EDESTADDRREQ:
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60 return "Destination address required";
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61 case EMSGSIZE:
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62 return "Message too long";
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63 case EPROTOTYPE:
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64 return "Protocol wrong type for socket";
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65 case ENOPROTOOPT:
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66 return "Protocol not available";
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67 case EPROTONOSUPPORT:
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68 return "Protocol not supported";
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69 case ESOCKTNOSUPPORT:
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70 return "Socket type not supported";
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71 case EOPNOTSUPP:
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72 return "Operation not supported";
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73 case EPFNOSUPPORT:
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74 return "Protocol family not supported";
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75 case EAFNOSUPPORT:
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76 return "Address family not supported by protocol";
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77 case EADDRINUSE:
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78 return "Address already in use";
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79 case EADDRNOTAVAIL:
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80 return "Cannot assign requested address";
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81 case ENETDOWN:
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82 return "Network is down";
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83 case ENETUNREACH:
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84 return "Network is unreachable";
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85 case ENETRESET:
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86 return "Network dropped connection on reset";
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87 case ECONNABORTED:
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88 return "Software caused connection abort";
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89 case ECONNRESET:
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90 return "Connection reset by peer";
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91 case ENOBUFS:
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92 return "No buffer space available";
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93 case EISCONN:
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94 return "Transport endpoint is already connected";
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95 case ENOTCONN:
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96 return "Transport endpoint is not connected";
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97 case ESHUTDOWN:
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98 return "Cannot send after transport endpoint shutdown";
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99 case ETOOMANYREFS:
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100 return "Too many references: cannot splice";
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101 case ETIMEDOUT:
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102 return "Connection timed out";
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103 case ECONNREFUSED:
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104 return "Connection refused";
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105 case ELOOP:
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106 return "Too many levels of symbolic links";
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107 case EHOSTDOWN:
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108 return "Host is down";
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109 case EHOSTUNREACH:
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110 return "No route to host";
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111 case EPROCLIM:
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112 return "Too many processes";
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113 case EUSERS:
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114 return "Too many users";
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115 case EDQUOT:
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116 return "Disk quota exceeded";
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117 case ESTALE:
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118 return "Stale NFS file handle";
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119 case EREMOTE:
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120 return "Object is remote";
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121 # if HAVE_WINSOCK2_H
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122 /* WSA_INVALID_HANDLE maps to EBADF */
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123 /* WSA_NOT_ENOUGH_MEMORY maps to ENOMEM */
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124 /* WSA_INVALID_PARAMETER maps to EINVAL */
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125 case WSA_OPERATION_ABORTED:
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126 return "Overlapped operation aborted";
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127 case WSA_IO_INCOMPLETE:
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128 return "Overlapped I/O event object not in signaled state";
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129 case WSA_IO_PENDING:
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130 return "Overlapped operations will complete later";
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131 /* WSAEINTR maps to EINTR */
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132 /* WSAEBADF maps to EBADF */
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133 /* WSAEACCES maps to EACCES */
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134 /* WSAEFAULT maps to EFAULT */
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135 /* WSAEINVAL maps to EINVAL */
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136 /* WSAEMFILE maps to EMFILE */
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137 /* WSAEWOULDBLOCK maps to EWOULDBLOCK */
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138 /* WSAEINPROGRESS is EINPROGRESS */
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139 /* WSAEALREADY is EALREADY */
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140 /* WSAENOTSOCK is ENOTSOCK */
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141 /* WSAEDESTADDRREQ is EDESTADDRREQ */
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142 /* WSAEMSGSIZE is EMSGSIZE */
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143 /* WSAEPROTOTYPE is EPROTOTYPE */
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144 /* WSAENOPROTOOPT is ENOPROTOOPT */
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145 /* WSAEPROTONOSUPPORT is EPROTONOSUPPORT */
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146 /* WSAESOCKTNOSUPPORT is ESOCKTNOSUPPORT */
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147 /* WSAEOPNOTSUPP is EOPNOTSUPP */
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148 /* WSAEPFNOSUPPORT is EPFNOSUPPORT */
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149 /* WSAEAFNOSUPPORT is EAFNOSUPPORT */
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150 /* WSAEADDRINUSE is EADDRINUSE */
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151 /* WSAEADDRNOTAVAIL is EADDRNOTAVAIL */
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152 /* WSAENETDOWN is ENETDOWN */
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153 /* WSAENETUNREACH is ENETUNREACH */
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154 /* WSAENETRESET is ENETRESET */
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155 /* WSAECONNABORTED is ECONNABORTED */
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156 /* WSAECONNRESET is ECONNRESET */
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157 /* WSAENOBUFS is ENOBUFS */
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158 /* WSAEISCONN is EISCONN */
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159 /* WSAENOTCONN is ENOTCONN */
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160 /* WSAESHUTDOWN is ESHUTDOWN */
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161 /* WSAETOOMANYREFS is ETOOMANYREFS */
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162 /* WSAETIMEDOUT is ETIMEDOUT */
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163 /* WSAECONNREFUSED is ECONNREFUSED */
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164 /* WSAELOOP is ELOOP */
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165 /* WSAENAMETOOLONG maps to ENAMETOOLONG */
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166 /* WSAEHOSTDOWN is EHOSTDOWN */
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167 /* WSAEHOSTUNREACH is EHOSTUNREACH */
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168 /* WSAENOTEMPTY maps to ENOTEMPTY */
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169 /* WSAEPROCLIM is EPROCLIM */
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170 /* WSAEUSERS is EUSERS */
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171 /* WSAEDQUOT is EDQUOT */
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172 /* WSAESTALE is ESTALE */
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173 /* WSAEREMOTE is EREMOTE */
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174 case WSASYSNOTREADY:
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175 return "Network subsystem is unavailable";
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176 case WSAVERNOTSUPPORTED:
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177 return "Winsock.dll version out of range";
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178 case WSANOTINITIALISED:
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179 return "Successful WSAStartup not yet performed";
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180 case WSAEDISCON:
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181 return "Graceful shutdown in progress";
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182 case WSAENOMORE: case WSA_E_NO_MORE:
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183 return "No more results";
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184 case WSAECANCELLED: case WSA_E_CANCELLED:
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185 return "Call was canceled";
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186 case WSAEINVALIDPROCTABLE:
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187 return "Procedure call table is invalid";
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188 case WSAEINVALIDPROVIDER:
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189 return "Service provider is invalid";
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190 case WSAEPROVIDERFAILEDINIT:
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191 return "Service provider failed to initialize";
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192 case WSASYSCALLFAILURE:
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193 return "System call failure";
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194 case WSASERVICE_NOT_FOUND:
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195 return "Service not found";
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196 case WSATYPE_NOT_FOUND:
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197 return "Class type not found";
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198 case WSAEREFUSED:
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199 return "Database query was refused";
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200 case WSAHOST_NOT_FOUND:
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201 return "Host not found";
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202 case WSATRY_AGAIN:
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203 return "Nonauthoritative host not found";
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204 case WSANO_RECOVERY:
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205 return "Nonrecoverable error";
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206 case WSANO_DATA:
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207 return "Valid name, no data record of requested type";
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208 /* WSA_QOS_* omitted */
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209 # endif
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210 # endif
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211
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212 # if GNULIB_defined_ENOMSG
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213 case ENOMSG:
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214 return "No message of desired type";
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215 # endif
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216
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217 # if GNULIB_defined_EIDRM
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218 case EIDRM:
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219 return "Identifier removed";
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220 # endif
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221
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222 # if GNULIB_defined_ENOLINK
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223 case ENOLINK:
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224 return "Link has been severed";
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225 # endif
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226
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227 # if GNULIB_defined_EPROTO
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228 case EPROTO:
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229 return "Protocol error";
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230 # endif
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231
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232 # if GNULIB_defined_EMULTIHOP
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233 case EMULTIHOP:
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234 return "Multihop attempted";
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235 # endif
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236
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237 # if GNULIB_defined_EBADMSG
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238 case EBADMSG:
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239 return "Bad message";
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240 # endif
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241
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242 # if GNULIB_defined_EOVERFLOW
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243 case EOVERFLOW:
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244 return "Value too large for defined data type";
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245 # endif
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246
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247 # if GNULIB_defined_ENOTSUP
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248 case ENOTSUP:
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249 return "Not supported";
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250 # endif
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251
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252 # if GNULIB_defined_
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253 case ECANCELED:
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254 return "Operation canceled";
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255 # endif
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256 }
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257
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258 {
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259 char *result = strerror (n);
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260
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261 if (result == NULL || result[0] == '\0')
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262 {
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263 static char const fmt[] = "Unknown error (%d)";
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264 static char mesg[sizeof fmt + INT_STRLEN_BOUND (n)];
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265 sprintf (mesg, fmt, n);
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266 return mesg;
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267 }
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268
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269 return result;
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270 }
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271 }
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272
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273 #endif
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