1 | /***************************************************************************
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2 | * _ _ ____ _
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3 | * Project ___| | | | _ \| |
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4 | * / __| | | | |_) | |
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5 | * | (__| |_| | _ <| |___
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6 | * \___|\___/|_| \_\_____|
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7 | *
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8 | * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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9 | *
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10 | * This software is licensed as described in the file COPYING, which
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11 | * you should have received as part of this distribution. The terms
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12 | * are also available at https://curl.haxx.se/docs/copyright.html.
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13 | *
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14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 | * copies of the Software, and permit persons to whom the Software is
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16 | * furnished to do so, under the terms of the COPYING file.
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17 | *
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18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 | * KIND, either express or implied.
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20 | *
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21 | ***************************************************************************/
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22 |
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23 | /**
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24 | * Now implemented:
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25 | *
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26 | * 1) Unix version 1
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27 | * drwxr-xr-x 1 user01 ftp 512 Jan 29 23:32 prog
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28 | * 2) Unix version 2
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29 | * drwxr-xr-x 1 user01 ftp 512 Jan 29 1997 prog
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30 | * 3) Unix version 3
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31 | * drwxr-xr-x 1 1 1 512 Jan 29 23:32 prog
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32 | * 4) Unix symlink
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33 | * lrwxr-xr-x 1 user01 ftp 512 Jan 29 23:32 prog -> prog2000
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34 | * 5) DOS style
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35 | * 01-29-97 11:32PM <DIR> prog
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36 | */
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37 |
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38 | #include "curl_setup.h"
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39 |
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40 | #ifndef CURL_DISABLE_FTP
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41 |
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42 | #include <curl/curl.h>
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43 |
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44 | #include "urldata.h"
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45 | #include "fileinfo.h"
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46 | #include "llist.h"
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47 | #include "strtoofft.h"
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48 | #include "ftp.h"
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49 | #include "ftplistparser.h"
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50 | #include "curl_fnmatch.h"
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51 | #include "curl_memory.h"
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52 | /* The last #include file should be: */
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53 | #include "memdebug.h"
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54 |
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55 | /* allocs buffer which will contain one line of LIST command response */
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56 | #define FTP_BUFFER_ALLOCSIZE 160
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57 |
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58 | typedef enum {
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59 | PL_UNIX_TOTALSIZE = 0,
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60 | PL_UNIX_FILETYPE,
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61 | PL_UNIX_PERMISSION,
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62 | PL_UNIX_HLINKS,
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63 | PL_UNIX_USER,
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64 | PL_UNIX_GROUP,
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65 | PL_UNIX_SIZE,
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66 | PL_UNIX_TIME,
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67 | PL_UNIX_FILENAME,
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68 | PL_UNIX_SYMLINK
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69 | } pl_unix_mainstate;
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70 |
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71 | typedef union {
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72 | enum {
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73 | PL_UNIX_TOTALSIZE_INIT = 0,
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74 | PL_UNIX_TOTALSIZE_READING
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75 | } total_dirsize;
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76 |
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77 | enum {
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78 | PL_UNIX_HLINKS_PRESPACE = 0,
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79 | PL_UNIX_HLINKS_NUMBER
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80 | } hlinks;
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81 |
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82 | enum {
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83 | PL_UNIX_USER_PRESPACE = 0,
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84 | PL_UNIX_USER_PARSING
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85 | } user;
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86 |
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87 | enum {
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88 | PL_UNIX_GROUP_PRESPACE = 0,
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89 | PL_UNIX_GROUP_NAME
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90 | } group;
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91 |
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92 | enum {
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93 | PL_UNIX_SIZE_PRESPACE = 0,
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94 | PL_UNIX_SIZE_NUMBER
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95 | } size;
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96 |
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97 | enum {
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98 | PL_UNIX_TIME_PREPART1 = 0,
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99 | PL_UNIX_TIME_PART1,
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100 | PL_UNIX_TIME_PREPART2,
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101 | PL_UNIX_TIME_PART2,
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102 | PL_UNIX_TIME_PREPART3,
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103 | PL_UNIX_TIME_PART3
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104 | } time;
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105 |
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106 | enum {
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107 | PL_UNIX_FILENAME_PRESPACE = 0,
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108 | PL_UNIX_FILENAME_NAME,
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109 | PL_UNIX_FILENAME_WINDOWSEOL
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110 | } filename;
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111 |
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112 | enum {
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113 | PL_UNIX_SYMLINK_PRESPACE = 0,
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114 | PL_UNIX_SYMLINK_NAME,
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115 | PL_UNIX_SYMLINK_PRETARGET1,
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116 | PL_UNIX_SYMLINK_PRETARGET2,
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117 | PL_UNIX_SYMLINK_PRETARGET3,
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118 | PL_UNIX_SYMLINK_PRETARGET4,
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119 | PL_UNIX_SYMLINK_TARGET,
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120 | PL_UNIX_SYMLINK_WINDOWSEOL
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121 | } symlink;
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122 | } pl_unix_substate;
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123 |
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124 | typedef enum {
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125 | PL_WINNT_DATE = 0,
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126 | PL_WINNT_TIME,
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127 | PL_WINNT_DIRORSIZE,
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128 | PL_WINNT_FILENAME
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129 | } pl_winNT_mainstate;
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130 |
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131 | typedef union {
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132 | enum {
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133 | PL_WINNT_TIME_PRESPACE = 0,
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134 | PL_WINNT_TIME_TIME
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135 | } time;
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136 | enum {
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137 | PL_WINNT_DIRORSIZE_PRESPACE = 0,
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138 | PL_WINNT_DIRORSIZE_CONTENT
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139 | } dirorsize;
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140 | enum {
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141 | PL_WINNT_FILENAME_PRESPACE = 0,
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142 | PL_WINNT_FILENAME_CONTENT,
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143 | PL_WINNT_FILENAME_WINEOL
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144 | } filename;
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145 | } pl_winNT_substate;
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146 |
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147 | /* This struct is used in wildcard downloading - for parsing LIST response */
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148 | struct ftp_parselist_data {
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149 | enum {
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150 | OS_TYPE_UNKNOWN = 0,
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151 | OS_TYPE_UNIX,
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152 | OS_TYPE_WIN_NT
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153 | } os_type;
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154 |
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155 | union {
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156 | struct {
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157 | pl_unix_mainstate main;
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158 | pl_unix_substate sub;
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159 | } UNIX;
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160 |
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161 | struct {
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162 | pl_winNT_mainstate main;
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163 | pl_winNT_substate sub;
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164 | } NT;
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165 | } state;
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166 |
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167 | CURLcode error;
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168 | struct fileinfo *file_data;
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169 | unsigned int item_length;
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170 | size_t item_offset;
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171 | struct {
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172 | size_t filename;
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173 | size_t user;
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174 | size_t group;
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175 | size_t time;
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176 | size_t perm;
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177 | size_t symlink_target;
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178 | } offsets;
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179 | };
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180 |
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181 | struct ftp_parselist_data *Curl_ftp_parselist_data_alloc(void)
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182 | {
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183 | return calloc(1, sizeof(struct ftp_parselist_data));
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184 | }
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185 |
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186 |
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187 | void Curl_ftp_parselist_data_free(struct ftp_parselist_data **pl_data)
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188 | {
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189 | free(*pl_data);
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190 | *pl_data = NULL;
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191 | }
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192 |
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193 |
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194 | CURLcode Curl_ftp_parselist_geterror(struct ftp_parselist_data *pl_data)
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195 | {
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196 | return pl_data->error;
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197 | }
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198 |
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199 |
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200 | #define FTP_LP_MALFORMATED_PERM 0x01000000
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201 |
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202 | static int ftp_pl_get_permission(const char *str)
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203 | {
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204 | int permissions = 0;
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205 | /* USER */
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206 | if(str[0] == 'r')
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207 | permissions |= 1 << 8;
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208 | else if(str[0] != '-')
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209 | permissions |= FTP_LP_MALFORMATED_PERM;
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210 | if(str[1] == 'w')
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211 | permissions |= 1 << 7;
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212 | else if(str[1] != '-')
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213 | permissions |= FTP_LP_MALFORMATED_PERM;
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214 |
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215 | if(str[2] == 'x')
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216 | permissions |= 1 << 6;
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217 | else if(str[2] == 's') {
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218 | permissions |= 1 << 6;
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219 | permissions |= 1 << 11;
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220 | }
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221 | else if(str[2] == 'S')
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222 | permissions |= 1 << 11;
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223 | else if(str[2] != '-')
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224 | permissions |= FTP_LP_MALFORMATED_PERM;
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225 | /* GROUP */
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226 | if(str[3] == 'r')
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227 | permissions |= 1 << 5;
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228 | else if(str[3] != '-')
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229 | permissions |= FTP_LP_MALFORMATED_PERM;
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230 | if(str[4] == 'w')
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231 | permissions |= 1 << 4;
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232 | else if(str[4] != '-')
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233 | permissions |= FTP_LP_MALFORMATED_PERM;
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234 | if(str[5] == 'x')
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235 | permissions |= 1 << 3;
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236 | else if(str[5] == 's') {
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237 | permissions |= 1 << 3;
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238 | permissions |= 1 << 10;
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239 | }
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240 | else if(str[5] == 'S')
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241 | permissions |= 1 << 10;
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242 | else if(str[5] != '-')
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243 | permissions |= FTP_LP_MALFORMATED_PERM;
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244 | /* others */
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245 | if(str[6] == 'r')
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246 | permissions |= 1 << 2;
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247 | else if(str[6] != '-')
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248 | permissions |= FTP_LP_MALFORMATED_PERM;
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249 | if(str[7] == 'w')
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250 | permissions |= 1 << 1;
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251 | else if(str[7] != '-')
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252 | permissions |= FTP_LP_MALFORMATED_PERM;
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253 | if(str[8] == 'x')
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254 | permissions |= 1;
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255 | else if(str[8] == 't') {
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256 | permissions |= 1;
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257 | permissions |= 1 << 9;
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258 | }
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259 | else if(str[8] == 'T')
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260 | permissions |= 1 << 9;
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261 | else if(str[8] != '-')
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262 | permissions |= FTP_LP_MALFORMATED_PERM;
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263 |
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264 | return permissions;
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265 | }
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266 |
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267 | static CURLcode ftp_pl_insert_finfo(struct connectdata *conn,
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268 | struct fileinfo *infop)
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269 | {
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270 | curl_fnmatch_callback compare;
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271 | struct WildcardData *wc = &conn->data->wildcard;
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272 | struct ftp_wc_tmpdata *tmpdata = wc->tmp;
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273 | struct curl_llist *llist = &wc->filelist;
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274 | struct ftp_parselist_data *parser = tmpdata->parser;
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275 | bool add = TRUE;
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276 | struct curl_fileinfo *finfo = &infop->info;
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277 |
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278 | /* move finfo pointers to b_data */
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279 | char *str = finfo->b_data;
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280 | finfo->filename = str + parser->offsets.filename;
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281 | finfo->strings.group = parser->offsets.group ?
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282 | str + parser->offsets.group : NULL;
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283 | finfo->strings.perm = parser->offsets.perm ?
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284 | str + parser->offsets.perm : NULL;
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285 | finfo->strings.target = parser->offsets.symlink_target ?
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286 | str + parser->offsets.symlink_target : NULL;
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287 | finfo->strings.time = str + parser->offsets.time;
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288 | finfo->strings.user = parser->offsets.user ?
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289 | str + parser->offsets.user : NULL;
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290 |
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291 | /* get correct fnmatch callback */
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292 | compare = conn->data->set.fnmatch;
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293 | if(!compare)
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294 | compare = Curl_fnmatch;
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295 |
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296 | /* filter pattern-corresponding filenames */
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297 | if(compare(conn->data->set.fnmatch_data, wc->pattern,
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298 | finfo->filename) == 0) {
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299 | /* discard symlink which is containing multiple " -> " */
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300 | if((finfo->filetype == CURLFILETYPE_SYMLINK) && finfo->strings.target &&
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301 | (strstr(finfo->strings.target, " -> "))) {
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302 | add = FALSE;
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303 | }
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304 | }
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305 | else {
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306 | add = FALSE;
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307 | }
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308 |
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309 | if(add) {
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310 | Curl_llist_insert_next(llist, llist->tail, finfo, &infop->list);
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311 | }
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312 | else {
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313 | Curl_fileinfo_dtor(NULL, finfo);
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314 | }
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315 |
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316 | tmpdata->parser->file_data = NULL;
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317 | return CURLE_OK;
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318 | }
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319 |
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320 | size_t Curl_ftp_parselist(char *buffer, size_t size, size_t nmemb,
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321 | void *connptr)
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322 | {
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323 | size_t bufflen = size*nmemb;
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324 | struct connectdata *conn = (struct connectdata *)connptr;
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325 | struct ftp_wc_tmpdata *tmpdata = conn->data->wildcard.tmp;
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326 | struct ftp_parselist_data *parser = tmpdata->parser;
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327 | struct fileinfo *infop;
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328 | struct curl_fileinfo *finfo;
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329 | unsigned long i = 0;
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330 | CURLcode result;
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331 | size_t retsize = bufflen;
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332 |
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333 | if(parser->error) { /* error in previous call */
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334 | /* scenario:
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335 | * 1. call => OK..
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336 | * 2. call => OUT_OF_MEMORY (or other error)
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337 | * 3. (last) call => is skipped RIGHT HERE and the error is hadled later
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338 | * in wc_statemach()
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339 | */
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340 | goto fail;
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341 | }
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342 |
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343 | if(parser->os_type == OS_TYPE_UNKNOWN && bufflen > 0) {
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344 | /* considering info about FILE response format */
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345 | parser->os_type = (buffer[0] >= '0' && buffer[0] <= '9') ?
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346 | OS_TYPE_WIN_NT : OS_TYPE_UNIX;
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347 | }
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348 |
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349 | while(i < bufflen) { /* FSM */
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350 |
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351 | char c = buffer[i];
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352 | if(!parser->file_data) { /* tmp file data is not allocated yet */
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353 | parser->file_data = Curl_fileinfo_alloc();
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354 | if(!parser->file_data) {
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355 | parser->error = CURLE_OUT_OF_MEMORY;
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356 | goto fail;
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357 | }
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358 | parser->file_data->info.b_data = malloc(FTP_BUFFER_ALLOCSIZE);
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359 | if(!parser->file_data->info.b_data) {
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360 | parser->error = CURLE_OUT_OF_MEMORY;
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361 | goto fail;
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362 | }
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363 | parser->file_data->info.b_size = FTP_BUFFER_ALLOCSIZE;
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364 | parser->item_offset = 0;
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365 | parser->item_length = 0;
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366 | }
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367 |
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368 | infop = parser->file_data;
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369 | finfo = &infop->info;
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370 | finfo->b_data[finfo->b_used++] = c;
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371 |
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372 | if(finfo->b_used >= finfo->b_size - 1) {
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373 | /* if it is important, extend buffer space for file data */
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374 | char *tmp = realloc(finfo->b_data,
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375 | finfo->b_size + FTP_BUFFER_ALLOCSIZE);
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376 | if(tmp) {
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377 | finfo->b_size += FTP_BUFFER_ALLOCSIZE;
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378 | finfo->b_data = tmp;
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379 | }
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380 | else {
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381 | Curl_fileinfo_dtor(NULL, parser->file_data);
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382 | parser->file_data = NULL;
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383 | parser->error = CURLE_OUT_OF_MEMORY;
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384 | goto fail;
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385 | }
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386 | }
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387 |
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388 | switch(parser->os_type) {
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389 | case OS_TYPE_UNIX:
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390 | switch(parser->state.UNIX.main) {
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391 | case PL_UNIX_TOTALSIZE:
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392 | switch(parser->state.UNIX.sub.total_dirsize) {
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393 | case PL_UNIX_TOTALSIZE_INIT:
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394 | if(c == 't') {
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395 | parser->state.UNIX.sub.total_dirsize = PL_UNIX_TOTALSIZE_READING;
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396 | parser->item_length++;
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397 | }
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398 | else {
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399 | parser->state.UNIX.main = PL_UNIX_FILETYPE;
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400 | /* start FSM again not considering size of directory */
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401 | finfo->b_used = 0;
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402 | i--;
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403 | }
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404 | break;
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405 | case PL_UNIX_TOTALSIZE_READING:
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406 | parser->item_length++;
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407 | if(c == '\r') {
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408 | parser->item_length--;
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409 | finfo->b_used--;
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410 | }
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411 | else if(c == '\n') {
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412 | finfo->b_data[parser->item_length - 1] = 0;
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413 | if(strncmp("total ", finfo->b_data, 6) == 0) {
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414 | char *endptr = finfo->b_data + 6;
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415 | /* here we can deal with directory size, pass the leading white
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416 | spaces and then the digits */
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417 | while(ISSPACE(*endptr))
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418 | endptr++;
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419 | while(ISDIGIT(*endptr))
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420 | endptr++;
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421 | if(*endptr != 0) {
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422 | parser->error = CURLE_FTP_BAD_FILE_LIST;
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423 | goto fail;
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424 | }
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425 | parser->state.UNIX.main = PL_UNIX_FILETYPE;
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426 | finfo->b_used = 0;
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427 | }
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428 | else {
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429 | parser->error = CURLE_FTP_BAD_FILE_LIST;
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430 | goto fail;
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431 | }
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432 | }
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433 | break;
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434 | }
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435 | break;
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436 | case PL_UNIX_FILETYPE:
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437 | switch(c) {
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438 | case '-':
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439 | finfo->filetype = CURLFILETYPE_FILE;
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440 | break;
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441 | case 'd':
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442 | finfo->filetype = CURLFILETYPE_DIRECTORY;
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443 | break;
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444 | case 'l':
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445 | finfo->filetype = CURLFILETYPE_SYMLINK;
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446 | break;
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447 | case 'p':
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448 | finfo->filetype = CURLFILETYPE_NAMEDPIPE;
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449 | break;
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450 | case 's':
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451 | finfo->filetype = CURLFILETYPE_SOCKET;
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452 | break;
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453 | case 'c':
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454 | finfo->filetype = CURLFILETYPE_DEVICE_CHAR;
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455 | break;
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456 | case 'b':
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457 | finfo->filetype = CURLFILETYPE_DEVICE_BLOCK;
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458 | break;
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459 | case 'D':
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460 | finfo->filetype = CURLFILETYPE_DOOR;
|
---|
461 | break;
|
---|
462 | default:
|
---|
463 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
464 | goto fail;
|
---|
465 | }
|
---|
466 | parser->state.UNIX.main = PL_UNIX_PERMISSION;
|
---|
467 | parser->item_length = 0;
|
---|
468 | parser->item_offset = 1;
|
---|
469 | break;
|
---|
470 | case PL_UNIX_PERMISSION:
|
---|
471 | parser->item_length++;
|
---|
472 | if(parser->item_length <= 9) {
|
---|
473 | if(!strchr("rwx-tTsS", c)) {
|
---|
474 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
475 | goto fail;
|
---|
476 | }
|
---|
477 | }
|
---|
478 | else if(parser->item_length == 10) {
|
---|
479 | unsigned int perm;
|
---|
480 | if(c != ' ') {
|
---|
481 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
482 | goto fail;
|
---|
483 | }
|
---|
484 | finfo->b_data[10] = 0; /* terminate permissions */
|
---|
485 | perm = ftp_pl_get_permission(finfo->b_data + parser->item_offset);
|
---|
486 | if(perm & FTP_LP_MALFORMATED_PERM) {
|
---|
487 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
488 | goto fail;
|
---|
489 | }
|
---|
490 | parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_PERM;
|
---|
491 | parser->file_data->info.perm = perm;
|
---|
492 | parser->offsets.perm = parser->item_offset;
|
---|
493 |
|
---|
494 | parser->item_length = 0;
|
---|
495 | parser->state.UNIX.main = PL_UNIX_HLINKS;
|
---|
496 | parser->state.UNIX.sub.hlinks = PL_UNIX_HLINKS_PRESPACE;
|
---|
497 | }
|
---|
498 | break;
|
---|
499 | case PL_UNIX_HLINKS:
|
---|
500 | switch(parser->state.UNIX.sub.hlinks) {
|
---|
501 | case PL_UNIX_HLINKS_PRESPACE:
|
---|
502 | if(c != ' ') {
|
---|
503 | if(c >= '0' && c <= '9') {
|
---|
504 | parser->item_offset = finfo->b_used - 1;
|
---|
505 | parser->item_length = 1;
|
---|
506 | parser->state.UNIX.sub.hlinks = PL_UNIX_HLINKS_NUMBER;
|
---|
507 | }
|
---|
508 | else {
|
---|
509 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
510 | goto fail;
|
---|
511 | }
|
---|
512 | }
|
---|
513 | break;
|
---|
514 | case PL_UNIX_HLINKS_NUMBER:
|
---|
515 | parser->item_length ++;
|
---|
516 | if(c == ' ') {
|
---|
517 | char *p;
|
---|
518 | long int hlinks;
|
---|
519 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
|
---|
520 | hlinks = strtol(finfo->b_data + parser->item_offset, &p, 10);
|
---|
521 | if(p[0] == '\0' && hlinks != LONG_MAX && hlinks != LONG_MIN) {
|
---|
522 | parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_HLINKCOUNT;
|
---|
523 | parser->file_data->info.hardlinks = hlinks;
|
---|
524 | }
|
---|
525 | parser->item_length = 0;
|
---|
526 | parser->item_offset = 0;
|
---|
527 | parser->state.UNIX.main = PL_UNIX_USER;
|
---|
528 | parser->state.UNIX.sub.user = PL_UNIX_USER_PRESPACE;
|
---|
529 | }
|
---|
530 | else if(c < '0' || c > '9') {
|
---|
531 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
532 | goto fail;
|
---|
533 | }
|
---|
534 | break;
|
---|
535 | }
|
---|
536 | break;
|
---|
537 | case PL_UNIX_USER:
|
---|
538 | switch(parser->state.UNIX.sub.user) {
|
---|
539 | case PL_UNIX_USER_PRESPACE:
|
---|
540 | if(c != ' ') {
|
---|
541 | parser->item_offset = finfo->b_used - 1;
|
---|
542 | parser->item_length = 1;
|
---|
543 | parser->state.UNIX.sub.user = PL_UNIX_USER_PARSING;
|
---|
544 | }
|
---|
545 | break;
|
---|
546 | case PL_UNIX_USER_PARSING:
|
---|
547 | parser->item_length++;
|
---|
548 | if(c == ' ') {
|
---|
549 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
|
---|
550 | parser->offsets.user = parser->item_offset;
|
---|
551 | parser->state.UNIX.main = PL_UNIX_GROUP;
|
---|
552 | parser->state.UNIX.sub.group = PL_UNIX_GROUP_PRESPACE;
|
---|
553 | parser->item_offset = 0;
|
---|
554 | parser->item_length = 0;
|
---|
555 | }
|
---|
556 | break;
|
---|
557 | }
|
---|
558 | break;
|
---|
559 | case PL_UNIX_GROUP:
|
---|
560 | switch(parser->state.UNIX.sub.group) {
|
---|
561 | case PL_UNIX_GROUP_PRESPACE:
|
---|
562 | if(c != ' ') {
|
---|
563 | parser->item_offset = finfo->b_used - 1;
|
---|
564 | parser->item_length = 1;
|
---|
565 | parser->state.UNIX.sub.group = PL_UNIX_GROUP_NAME;
|
---|
566 | }
|
---|
567 | break;
|
---|
568 | case PL_UNIX_GROUP_NAME:
|
---|
569 | parser->item_length++;
|
---|
570 | if(c == ' ') {
|
---|
571 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
|
---|
572 | parser->offsets.group = parser->item_offset;
|
---|
573 | parser->state.UNIX.main = PL_UNIX_SIZE;
|
---|
574 | parser->state.UNIX.sub.size = PL_UNIX_SIZE_PRESPACE;
|
---|
575 | parser->item_offset = 0;
|
---|
576 | parser->item_length = 0;
|
---|
577 | }
|
---|
578 | break;
|
---|
579 | }
|
---|
580 | break;
|
---|
581 | case PL_UNIX_SIZE:
|
---|
582 | switch(parser->state.UNIX.sub.size) {
|
---|
583 | case PL_UNIX_SIZE_PRESPACE:
|
---|
584 | if(c != ' ') {
|
---|
585 | if(c >= '0' && c <= '9') {
|
---|
586 | parser->item_offset = finfo->b_used - 1;
|
---|
587 | parser->item_length = 1;
|
---|
588 | parser->state.UNIX.sub.size = PL_UNIX_SIZE_NUMBER;
|
---|
589 | }
|
---|
590 | else {
|
---|
591 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
592 | goto fail;
|
---|
593 | }
|
---|
594 | }
|
---|
595 | break;
|
---|
596 | case PL_UNIX_SIZE_NUMBER:
|
---|
597 | parser->item_length++;
|
---|
598 | if(c == ' ') {
|
---|
599 | char *p;
|
---|
600 | curl_off_t fsize;
|
---|
601 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
|
---|
602 | if(!curlx_strtoofft(finfo->b_data + parser->item_offset,
|
---|
603 | &p, 10, &fsize)) {
|
---|
604 | if(p[0] == '\0' && fsize != CURL_OFF_T_MAX &&
|
---|
605 | fsize != CURL_OFF_T_MIN) {
|
---|
606 | parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_SIZE;
|
---|
607 | parser->file_data->info.size = fsize;
|
---|
608 | }
|
---|
609 | parser->item_length = 0;
|
---|
610 | parser->item_offset = 0;
|
---|
611 | parser->state.UNIX.main = PL_UNIX_TIME;
|
---|
612 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PREPART1;
|
---|
613 | }
|
---|
614 | }
|
---|
615 | else if(!ISDIGIT(c)) {
|
---|
616 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
617 | goto fail;
|
---|
618 | }
|
---|
619 | break;
|
---|
620 | }
|
---|
621 | break;
|
---|
622 | case PL_UNIX_TIME:
|
---|
623 | switch(parser->state.UNIX.sub.time) {
|
---|
624 | case PL_UNIX_TIME_PREPART1:
|
---|
625 | if(c != ' ') {
|
---|
626 | if(ISALNUM(c)) {
|
---|
627 | parser->item_offset = finfo->b_used -1;
|
---|
628 | parser->item_length = 1;
|
---|
629 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PART1;
|
---|
630 | }
|
---|
631 | else {
|
---|
632 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
633 | goto fail;
|
---|
634 | }
|
---|
635 | }
|
---|
636 | break;
|
---|
637 | case PL_UNIX_TIME_PART1:
|
---|
638 | parser->item_length++;
|
---|
639 | if(c == ' ') {
|
---|
640 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PREPART2;
|
---|
641 | }
|
---|
642 | else if(!ISALNUM(c) && c != '.') {
|
---|
643 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
644 | goto fail;
|
---|
645 | }
|
---|
646 | break;
|
---|
647 | case PL_UNIX_TIME_PREPART2:
|
---|
648 | parser->item_length++;
|
---|
649 | if(c != ' ') {
|
---|
650 | if(ISALNUM(c)) {
|
---|
651 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PART2;
|
---|
652 | }
|
---|
653 | else {
|
---|
654 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
655 | goto fail;
|
---|
656 | }
|
---|
657 | }
|
---|
658 | break;
|
---|
659 | case PL_UNIX_TIME_PART2:
|
---|
660 | parser->item_length++;
|
---|
661 | if(c == ' ') {
|
---|
662 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PREPART3;
|
---|
663 | }
|
---|
664 | else if(!ISALNUM(c) && c != '.') {
|
---|
665 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
666 | goto fail;
|
---|
667 | }
|
---|
668 | break;
|
---|
669 | case PL_UNIX_TIME_PREPART3:
|
---|
670 | parser->item_length++;
|
---|
671 | if(c != ' ') {
|
---|
672 | if(ISALNUM(c)) {
|
---|
673 | parser->state.UNIX.sub.time = PL_UNIX_TIME_PART3;
|
---|
674 | }
|
---|
675 | else {
|
---|
676 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
677 | goto fail;
|
---|
678 | }
|
---|
679 | }
|
---|
680 | break;
|
---|
681 | case PL_UNIX_TIME_PART3:
|
---|
682 | parser->item_length++;
|
---|
683 | if(c == ' ') {
|
---|
684 | finfo->b_data[parser->item_offset + parser->item_length -1] = 0;
|
---|
685 | parser->offsets.time = parser->item_offset;
|
---|
686 | /*
|
---|
687 | if(ftp_pl_gettime(parser, finfo->b_data + parser->item_offset)) {
|
---|
688 | parser->file_data->flags |= CURLFINFOFLAG_KNOWN_TIME;
|
---|
689 | }
|
---|
690 | */
|
---|
691 | if(finfo->filetype == CURLFILETYPE_SYMLINK) {
|
---|
692 | parser->state.UNIX.main = PL_UNIX_SYMLINK;
|
---|
693 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRESPACE;
|
---|
694 | }
|
---|
695 | else {
|
---|
696 | parser->state.UNIX.main = PL_UNIX_FILENAME;
|
---|
697 | parser->state.UNIX.sub.filename = PL_UNIX_FILENAME_PRESPACE;
|
---|
698 | }
|
---|
699 | }
|
---|
700 | else if(!ISALNUM(c) && c != '.' && c != ':') {
|
---|
701 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
702 | goto fail;
|
---|
703 | }
|
---|
704 | break;
|
---|
705 | }
|
---|
706 | break;
|
---|
707 | case PL_UNIX_FILENAME:
|
---|
708 | switch(parser->state.UNIX.sub.filename) {
|
---|
709 | case PL_UNIX_FILENAME_PRESPACE:
|
---|
710 | if(c != ' ') {
|
---|
711 | parser->item_offset = finfo->b_used - 1;
|
---|
712 | parser->item_length = 1;
|
---|
713 | parser->state.UNIX.sub.filename = PL_UNIX_FILENAME_NAME;
|
---|
714 | }
|
---|
715 | break;
|
---|
716 | case PL_UNIX_FILENAME_NAME:
|
---|
717 | parser->item_length++;
|
---|
718 | if(c == '\r') {
|
---|
719 | parser->state.UNIX.sub.filename = PL_UNIX_FILENAME_WINDOWSEOL;
|
---|
720 | }
|
---|
721 | else if(c == '\n') {
|
---|
722 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
|
---|
723 | parser->offsets.filename = parser->item_offset;
|
---|
724 | parser->state.UNIX.main = PL_UNIX_FILETYPE;
|
---|
725 | result = ftp_pl_insert_finfo(conn, infop);
|
---|
726 | if(result) {
|
---|
727 | parser->error = result;
|
---|
728 | goto fail;
|
---|
729 | }
|
---|
730 | }
|
---|
731 | break;
|
---|
732 | case PL_UNIX_FILENAME_WINDOWSEOL:
|
---|
733 | if(c == '\n') {
|
---|
734 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
|
---|
735 | parser->offsets.filename = parser->item_offset;
|
---|
736 | parser->state.UNIX.main = PL_UNIX_FILETYPE;
|
---|
737 | result = ftp_pl_insert_finfo(conn, infop);
|
---|
738 | if(result) {
|
---|
739 | parser->error = result;
|
---|
740 | goto fail;
|
---|
741 | }
|
---|
742 | }
|
---|
743 | else {
|
---|
744 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
745 | goto fail;
|
---|
746 | }
|
---|
747 | break;
|
---|
748 | }
|
---|
749 | break;
|
---|
750 | case PL_UNIX_SYMLINK:
|
---|
751 | switch(parser->state.UNIX.sub.symlink) {
|
---|
752 | case PL_UNIX_SYMLINK_PRESPACE:
|
---|
753 | if(c != ' ') {
|
---|
754 | parser->item_offset = finfo->b_used - 1;
|
---|
755 | parser->item_length = 1;
|
---|
756 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME;
|
---|
757 | }
|
---|
758 | break;
|
---|
759 | case PL_UNIX_SYMLINK_NAME:
|
---|
760 | parser->item_length++;
|
---|
761 | if(c == ' ') {
|
---|
762 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET1;
|
---|
763 | }
|
---|
764 | else if(c == '\r' || c == '\n') {
|
---|
765 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
766 | goto fail;
|
---|
767 | }
|
---|
768 | break;
|
---|
769 | case PL_UNIX_SYMLINK_PRETARGET1:
|
---|
770 | parser->item_length++;
|
---|
771 | if(c == '-') {
|
---|
772 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET2;
|
---|
773 | }
|
---|
774 | else if(c == '\r' || c == '\n') {
|
---|
775 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
776 | goto fail;
|
---|
777 | }
|
---|
778 | else {
|
---|
779 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME;
|
---|
780 | }
|
---|
781 | break;
|
---|
782 | case PL_UNIX_SYMLINK_PRETARGET2:
|
---|
783 | parser->item_length++;
|
---|
784 | if(c == '>') {
|
---|
785 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET3;
|
---|
786 | }
|
---|
787 | else if(c == '\r' || c == '\n') {
|
---|
788 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
789 | goto fail;
|
---|
790 | }
|
---|
791 | else {
|
---|
792 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME;
|
---|
793 | }
|
---|
794 | break;
|
---|
795 | case PL_UNIX_SYMLINK_PRETARGET3:
|
---|
796 | parser->item_length++;
|
---|
797 | if(c == ' ') {
|
---|
798 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET4;
|
---|
799 | /* now place where is symlink following */
|
---|
800 | finfo->b_data[parser->item_offset + parser->item_length - 4] = 0;
|
---|
801 | parser->offsets.filename = parser->item_offset;
|
---|
802 | parser->item_length = 0;
|
---|
803 | parser->item_offset = 0;
|
---|
804 | }
|
---|
805 | else if(c == '\r' || c == '\n') {
|
---|
806 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
807 | goto fail;
|
---|
808 | }
|
---|
809 | else {
|
---|
810 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME;
|
---|
811 | }
|
---|
812 | break;
|
---|
813 | case PL_UNIX_SYMLINK_PRETARGET4:
|
---|
814 | if(c != '\r' && c != '\n') {
|
---|
815 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_TARGET;
|
---|
816 | parser->item_offset = finfo->b_used - 1;
|
---|
817 | parser->item_length = 1;
|
---|
818 | }
|
---|
819 | else {
|
---|
820 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
821 | goto fail;
|
---|
822 | }
|
---|
823 | break;
|
---|
824 | case PL_UNIX_SYMLINK_TARGET:
|
---|
825 | parser->item_length++;
|
---|
826 | if(c == '\r') {
|
---|
827 | parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_WINDOWSEOL;
|
---|
828 | }
|
---|
829 | else if(c == '\n') {
|
---|
830 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
|
---|
831 | parser->offsets.symlink_target = parser->item_offset;
|
---|
832 | result = ftp_pl_insert_finfo(conn, infop);
|
---|
833 | if(result) {
|
---|
834 | parser->error = result;
|
---|
835 | goto fail;
|
---|
836 | }
|
---|
837 | parser->state.UNIX.main = PL_UNIX_FILETYPE;
|
---|
838 | }
|
---|
839 | break;
|
---|
840 | case PL_UNIX_SYMLINK_WINDOWSEOL:
|
---|
841 | if(c == '\n') {
|
---|
842 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
|
---|
843 | parser->offsets.symlink_target = parser->item_offset;
|
---|
844 | result = ftp_pl_insert_finfo(conn, infop);
|
---|
845 | if(result) {
|
---|
846 | parser->error = result;
|
---|
847 | goto fail;
|
---|
848 | }
|
---|
849 | parser->state.UNIX.main = PL_UNIX_FILETYPE;
|
---|
850 | }
|
---|
851 | else {
|
---|
852 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
853 | goto fail;
|
---|
854 | }
|
---|
855 | break;
|
---|
856 | }
|
---|
857 | break;
|
---|
858 | }
|
---|
859 | break;
|
---|
860 | case OS_TYPE_WIN_NT:
|
---|
861 | switch(parser->state.NT.main) {
|
---|
862 | case PL_WINNT_DATE:
|
---|
863 | parser->item_length++;
|
---|
864 | if(parser->item_length < 9) {
|
---|
865 | if(!strchr("0123456789-", c)) { /* only simple control */
|
---|
866 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
867 | goto fail;
|
---|
868 | }
|
---|
869 | }
|
---|
870 | else if(parser->item_length == 9) {
|
---|
871 | if(c == ' ') {
|
---|
872 | parser->state.NT.main = PL_WINNT_TIME;
|
---|
873 | parser->state.NT.sub.time = PL_WINNT_TIME_PRESPACE;
|
---|
874 | }
|
---|
875 | else {
|
---|
876 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
877 | goto fail;
|
---|
878 | }
|
---|
879 | }
|
---|
880 | else {
|
---|
881 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
882 | goto fail;
|
---|
883 | }
|
---|
884 | break;
|
---|
885 | case PL_WINNT_TIME:
|
---|
886 | parser->item_length++;
|
---|
887 | switch(parser->state.NT.sub.time) {
|
---|
888 | case PL_WINNT_TIME_PRESPACE:
|
---|
889 | if(!ISSPACE(c)) {
|
---|
890 | parser->state.NT.sub.time = PL_WINNT_TIME_TIME;
|
---|
891 | }
|
---|
892 | break;
|
---|
893 | case PL_WINNT_TIME_TIME:
|
---|
894 | if(c == ' ') {
|
---|
895 | parser->offsets.time = parser->item_offset;
|
---|
896 | finfo->b_data[parser->item_offset + parser->item_length -1] = 0;
|
---|
897 | parser->state.NT.main = PL_WINNT_DIRORSIZE;
|
---|
898 | parser->state.NT.sub.dirorsize = PL_WINNT_DIRORSIZE_PRESPACE;
|
---|
899 | parser->item_length = 0;
|
---|
900 | }
|
---|
901 | else if(!strchr("APM0123456789:", c)) {
|
---|
902 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
903 | goto fail;
|
---|
904 | }
|
---|
905 | break;
|
---|
906 | }
|
---|
907 | break;
|
---|
908 | case PL_WINNT_DIRORSIZE:
|
---|
909 | switch(parser->state.NT.sub.dirorsize) {
|
---|
910 | case PL_WINNT_DIRORSIZE_PRESPACE:
|
---|
911 | if(c == ' ') {
|
---|
912 |
|
---|
913 | }
|
---|
914 | else {
|
---|
915 | parser->item_offset = finfo->b_used - 1;
|
---|
916 | parser->item_length = 1;
|
---|
917 | parser->state.NT.sub.dirorsize = PL_WINNT_DIRORSIZE_CONTENT;
|
---|
918 | }
|
---|
919 | break;
|
---|
920 | case PL_WINNT_DIRORSIZE_CONTENT:
|
---|
921 | parser->item_length ++;
|
---|
922 | if(c == ' ') {
|
---|
923 | finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
|
---|
924 | if(strcmp("<DIR>", finfo->b_data + parser->item_offset) == 0) {
|
---|
925 | finfo->filetype = CURLFILETYPE_DIRECTORY;
|
---|
926 | finfo->size = 0;
|
---|
927 | }
|
---|
928 | else {
|
---|
929 | char *endptr;
|
---|
930 | if(curlx_strtoofft(finfo->b_data +
|
---|
931 | parser->item_offset,
|
---|
932 | &endptr, 10, &finfo->size)) {
|
---|
933 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
934 | goto fail;
|
---|
935 | }
|
---|
936 | /* correct file type */
|
---|
937 | parser->file_data->info.filetype = CURLFILETYPE_FILE;
|
---|
938 | }
|
---|
939 |
|
---|
940 | parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_SIZE;
|
---|
941 | parser->item_length = 0;
|
---|
942 | parser->state.NT.main = PL_WINNT_FILENAME;
|
---|
943 | parser->state.NT.sub.filename = PL_WINNT_FILENAME_PRESPACE;
|
---|
944 | }
|
---|
945 | break;
|
---|
946 | }
|
---|
947 | break;
|
---|
948 | case PL_WINNT_FILENAME:
|
---|
949 | switch(parser->state.NT.sub.filename) {
|
---|
950 | case PL_WINNT_FILENAME_PRESPACE:
|
---|
951 | if(c != ' ') {
|
---|
952 | parser->item_offset = finfo->b_used -1;
|
---|
953 | parser->item_length = 1;
|
---|
954 | parser->state.NT.sub.filename = PL_WINNT_FILENAME_CONTENT;
|
---|
955 | }
|
---|
956 | break;
|
---|
957 | case PL_WINNT_FILENAME_CONTENT:
|
---|
958 | parser->item_length++;
|
---|
959 | if(c == '\r') {
|
---|
960 | parser->state.NT.sub.filename = PL_WINNT_FILENAME_WINEOL;
|
---|
961 | finfo->b_data[finfo->b_used - 1] = 0;
|
---|
962 | }
|
---|
963 | else if(c == '\n') {
|
---|
964 | parser->offsets.filename = parser->item_offset;
|
---|
965 | finfo->b_data[finfo->b_used - 1] = 0;
|
---|
966 | parser->offsets.filename = parser->item_offset;
|
---|
967 | result = ftp_pl_insert_finfo(conn, infop);
|
---|
968 | if(result) {
|
---|
969 | parser->error = result;
|
---|
970 | goto fail;
|
---|
971 | }
|
---|
972 | parser->state.NT.main = PL_WINNT_DATE;
|
---|
973 | parser->state.NT.sub.filename = PL_WINNT_FILENAME_PRESPACE;
|
---|
974 | }
|
---|
975 | break;
|
---|
976 | case PL_WINNT_FILENAME_WINEOL:
|
---|
977 | if(c == '\n') {
|
---|
978 | parser->offsets.filename = parser->item_offset;
|
---|
979 | result = ftp_pl_insert_finfo(conn, infop);
|
---|
980 | if(result) {
|
---|
981 | parser->error = result;
|
---|
982 | goto fail;
|
---|
983 | }
|
---|
984 | parser->state.NT.main = PL_WINNT_DATE;
|
---|
985 | parser->state.NT.sub.filename = PL_WINNT_FILENAME_PRESPACE;
|
---|
986 | }
|
---|
987 | else {
|
---|
988 | parser->error = CURLE_FTP_BAD_FILE_LIST;
|
---|
989 | goto fail;
|
---|
990 | }
|
---|
991 | break;
|
---|
992 | }
|
---|
993 | break;
|
---|
994 | }
|
---|
995 | break;
|
---|
996 | default:
|
---|
997 | retsize = bufflen + 1;
|
---|
998 | goto fail;
|
---|
999 | }
|
---|
1000 |
|
---|
1001 | i++;
|
---|
1002 | }
|
---|
1003 |
|
---|
1004 | fail:
|
---|
1005 |
|
---|
1006 | /* Clean up any allocated memory. */
|
---|
1007 | if(parser->file_data) {
|
---|
1008 | Curl_fileinfo_dtor(NULL, parser->file_data);
|
---|
1009 | parser->file_data = NULL;
|
---|
1010 | }
|
---|
1011 |
|
---|
1012 | return retsize;
|
---|
1013 | }
|
---|
1014 |
|
---|
1015 | #endif /* CURL_DISABLE_FTP */
|
---|