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org.apache.commons.net.ftp.FTPReply |
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1 | /* |
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2 | * Copyright 2001-2005 The Apache Software Foundation |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | package org.apache.commons.net.ftp; |
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17 | ||
18 | /*** |
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19 | * FTPReply stores a set of constants for FTP reply codes. To interpret |
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20 | * the meaning of the codes, familiarity with RFC 959 is assumed. |
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21 | * The mnemonic constant names are transcriptions from the code descriptions |
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22 | * of RFC 959. For those who think in terms of the actual reply code values, |
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23 | * a set of CODE_NUM constants are provided where NUM is the numerical value |
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24 | * of the code. |
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25 | * <p> |
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26 | * <p> |
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27 | * @author Daniel F. Savarese |
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28 | ***/ |
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29 | ||
30 | public final class FTPReply |
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31 | { |
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32 | ||
33 | public static final int CODE_110 = 110; |
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34 | public static final int CODE_120 = 120; |
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35 | public static final int CODE_125 = 125; |
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36 | public static final int CODE_150 = 150; |
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37 | public static final int CODE_200 = 200; |
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38 | public static final int CODE_202 = 202; |
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39 | public static final int CODE_211 = 211; |
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40 | public static final int CODE_212 = 212; |
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41 | public static final int CODE_213 = 213; |
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42 | public static final int CODE_214 = 214; |
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43 | public static final int CODE_215 = 215; |
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44 | public static final int CODE_220 = 220; |
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45 | public static final int CODE_221 = 221; |
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46 | public static final int CODE_225 = 225; |
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47 | public static final int CODE_226 = 226; |
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48 | public static final int CODE_227 = 227; |
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49 | public static final int CODE_230 = 230; |
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50 | public static final int CODE_250 = 250; |
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51 | public static final int CODE_257 = 257; |
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52 | public static final int CODE_331 = 331; |
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53 | public static final int CODE_332 = 332; |
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54 | public static final int CODE_350 = 350; |
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55 | public static final int CODE_421 = 421; |
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56 | public static final int CODE_425 = 425; |
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57 | public static final int CODE_426 = 426; |
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58 | public static final int CODE_450 = 450; |
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59 | public static final int CODE_451 = 451; |
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60 | public static final int CODE_452 = 452; |
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61 | public static final int CODE_500 = 500; |
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62 | public static final int CODE_501 = 501; |
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63 | public static final int CODE_502 = 502; |
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64 | public static final int CODE_503 = 503; |
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65 | public static final int CODE_504 = 504; |
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66 | public static final int CODE_521 = 521; |
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67 | public static final int CODE_530 = 530; |
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68 | public static final int CODE_532 = 532; |
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69 | public static final int CODE_550 = 550; |
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70 | public static final int CODE_551 = 551; |
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71 | public static final int CODE_552 = 552; |
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72 | public static final int CODE_553 = 553; |
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73 | ||
74 | public static final int RESTART_MARKER = CODE_110; |
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75 | public static final int SERVICE_NOT_READY = CODE_120; |
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76 | public static final int DATA_CONNECTION_ALREADY_OPEN = CODE_125; |
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77 | public static final int FILE_STATUS_OK = CODE_150; |
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78 | public static final int COMMAND_OK = CODE_200; |
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79 | public static final int COMMAND_IS_SUPERFLUOUS = CODE_202; |
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80 | public static final int SYSTEM_STATUS = CODE_211; |
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81 | public static final int DIRECTORY_STATUS = CODE_212; |
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82 | public static final int FILE_STATUS = CODE_213; |
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83 | public static final int HELP_MESSAGE = CODE_214; |
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84 | public static final int NAME_SYSTEM_TYPE = CODE_215; |
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85 | public static final int SERVICE_READY = CODE_220; |
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86 | public static final int SERVICE_CLOSING_CONTROL_CONNECTION = CODE_221; |
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87 | public static final int DATA_CONNECTION_OPEN = CODE_225; |
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88 | public static final int CLOSING_DATA_CONNECTION = CODE_226; |
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89 | public static final int ENTERING_PASSIVE_MODE = CODE_227; |
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90 | public static final int USER_LOGGED_IN = CODE_230; |
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91 | public static final int FILE_ACTION_OK = CODE_250; |
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92 | public static final int PATHNAME_CREATED = CODE_257; |
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93 | public static final int NEED_PASSWORD = CODE_331; |
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94 | public static final int NEED_ACCOUNT = CODE_332; |
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95 | public static final int FILE_ACTION_PENDING = CODE_350; |
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96 | public static final int SERVICE_NOT_AVAILABLE = CODE_421; |
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97 | public static final int CANNOT_OPEN_DATA_CONNECTION = CODE_425; |
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98 | public static final int TRANSFER_ABORTED = CODE_426; |
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99 | public static final int FILE_ACTION_NOT_TAKEN = CODE_450; |
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100 | public static final int ACTION_ABORTED = CODE_451; |
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101 | public static final int INSUFFICIENT_STORAGE = CODE_452; |
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102 | public static final int UNRECOGNIZED_COMMAND = CODE_500; |
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103 | public static final int SYNTAX_ERROR_IN_ARGUMENTS = CODE_501; |
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104 | public static final int COMMAND_NOT_IMPLEMENTED = CODE_502; |
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105 | public static final int BAD_COMMAND_SEQUENCE = CODE_503; |
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106 | public static final int COMMAND_NOT_IMPLEMENTED_FOR_PARAMETER = CODE_504; |
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107 | public static final int NOT_LOGGED_IN = CODE_530; |
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108 | public static final int NEED_ACCOUNT_FOR_STORING_FILES = CODE_532; |
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109 | public static final int FILE_UNAVAILABLE = CODE_550; |
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110 | public static final int PAGE_TYPE_UNKNOWN = CODE_551; |
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111 | public static final int STORAGE_ALLOCATION_EXCEEDED = CODE_552; |
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112 | public static final int FILE_NAME_NOT_ALLOWED = CODE_553; |
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113 | ||
114 | // Cannot be instantiated |
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115 | private FTPReply() |
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116 | 0 | {} |
117 | ||
118 | /*** |
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119 | * Determine if a reply code is a positive preliminary response. All |
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120 | * codes beginning with a 1 are positive preliminary responses. |
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121 | * Postitive preliminary responses are used to indicate tentative success. |
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122 | * No further commands can be issued to the FTP server after a positive |
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123 | * preliminary response until a follow up response is received from the |
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124 | * server. |
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125 | * <p> |
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126 | * @param reply The reply code to test. |
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127 | * @return True if a reply code is a postive preliminary response, false |
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128 | * if not. |
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129 | ***/ |
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130 | public static boolean isPositivePreliminary(int reply) |
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131 | { |
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132 | 0 | return (reply >= 100 && reply < 200); |
133 | } |
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134 | ||
135 | /*** |
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136 | * Determine if a reply code is a positive completion response. All |
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137 | * codes beginning with a 2 are positive completion responses. |
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138 | * The FTP server will send a positive completion response on the final |
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139 | * successful completion of a command. |
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140 | * <p> |
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141 | * @param reply The reply code to test. |
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142 | * @return True if a reply code is a postive completion response, false |
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143 | * if not. |
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144 | ***/ |
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145 | public static boolean isPositiveCompletion(int reply) |
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146 | { |
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147 | 0 | return (reply >= 200 && reply < 300); |
148 | } |
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149 | ||
150 | /*** |
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151 | * Determine if a reply code is a positive intermediate response. All |
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152 | * codes beginning with a 3 are positive intermediate responses. |
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153 | * The FTP server will send a positive intermediate response on the |
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154 | * successful completion of one part of a multi-part sequence of |
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155 | * commands. For example, after a successful USER command, a positive |
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156 | * intermediate response will be sent to indicate that the server is |
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157 | * ready for the PASS command. |
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158 | * <p> |
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159 | * @param reply The reply code to test. |
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160 | * @return True if a reply code is a postive intermediate response, false |
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161 | * if not. |
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162 | ***/ |
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163 | public static boolean isPositiveIntermediate(int reply) |
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164 | { |
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165 | 0 | return (reply >= 300 && reply < 400); |
166 | } |
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167 | ||
168 | /*** |
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169 | * Determine if a reply code is a negative transient response. All |
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170 | * codes beginning with a 4 are negative transient responses. |
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171 | * The FTP server will send a negative transient response on the |
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172 | * failure of a command that can be reattempted with success. |
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173 | * <p> |
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174 | * @param reply The reply code to test. |
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175 | * @return True if a reply code is a negative transient response, false |
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176 | * if not. |
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177 | ***/ |
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178 | public static boolean isNegativeTransient(int reply) |
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179 | { |
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180 | 0 | return (reply >= 400 && reply < 500); |
181 | } |
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182 | ||
183 | /*** |
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184 | * Determine if a reply code is a negative permanent response. All |
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185 | * codes beginning with a 5 are negative permanent responses. |
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186 | * The FTP server will send a negative permanent response on the |
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187 | * failure of a command that cannot be reattempted with success. |
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188 | * <p> |
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189 | * @param reply The reply code to test. |
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190 | * @return True if a reply code is a negative permanent response, false |
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191 | * if not. |
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192 | ***/ |
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193 | public static boolean isNegativePermanent(int reply) |
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194 | { |
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195 | 0 | return (reply >= 500 && reply < 600); |
196 | } |
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197 | ||
198 | } |
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