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1 // Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // PosixFilesystem class |
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15 // |
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16 // |
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17 |
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18 #include "SYSIF.H" |
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19 #include "FDESC.H" |
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20 #include "LTIME.H" |
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21 #include "LPOSIX.H" |
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22 #include <fcntl.h> |
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23 #include <sys/errno.h> |
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24 |
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25 wchar_t * PosixFilesystem::getcwd (RFs& aFs, wchar_t* buf, unsigned long len, int& anErrno) |
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26 { |
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27 TFullName name; |
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28 TInt err = aFs.SessionPath(name); |
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29 if (!err) |
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30 { |
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31 TPtr16 pathdes((TText16 *)buf, len); |
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32 if (pathdes.MaxLength() >= (name.Length() + 1)) //+1 to allow for the null terminator |
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33 { |
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34 pathdes.Copy(name); |
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35 pathdes.ZeroTerminate(); |
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36 return buf; |
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37 } |
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38 else |
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39 err = ERANGE; //out of range |
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40 } |
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41 MapError(err, anErrno); |
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42 return 0; |
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43 } |
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44 |
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45 int PosixFilesystem::chdir (RFs& aFs, const wchar_t* aPath, int& anErrno) |
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46 { |
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47 TParse name; |
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48 TInt err=GetFullPath(name, (const TText16 *)aPath, aFs, NULL); |
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49 if (!err) |
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50 { |
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51 TPtrC path=name.DriveAndPath(); |
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52 TUint att=0; |
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53 if (path.Length()==3) // Problem in F32 - the root directory has no attributes |
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54 att=KEntryAttDir; |
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55 else |
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56 err=aFs.Att(path, att); |
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57 if (!err) |
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58 if (att&KEntryAttDir) |
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59 err=aFs.SetSessionPath(path); |
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60 else |
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61 err=ENOTDIR; |
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62 } |
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63 return MapError(err,anErrno); |
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64 } |
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65 |
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66 int PosixFilesystem::rmdir (RFs& aFs, const wchar_t* aPath, int& anErrno) |
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67 { |
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68 TParse name; |
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69 TInt err=GetFullPath(name,(const TText16 *)aPath,aFs,NULL); |
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70 if (!err) |
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71 { |
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72 TPtrC path=name.DriveAndPath(); |
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73 TUint att=0; |
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74 if (path.Length()==3) |
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75 err=EPERM; // no, you may not remove the root directory |
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76 else |
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77 err=aFs.Att(path, att); |
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78 if (!err) |
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79 if (att&KEntryAttDir) |
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80 { |
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81 err=aFs.RmDir(path); |
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82 if (err==KErrInUse) |
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83 err=EEXIST; // i.e. directory not empty |
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84 } |
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85 else |
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86 err=ENOTDIR; |
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87 } |
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88 return MapError(err,anErrno); |
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89 } |
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90 |
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91 |
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92 |
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93 int PosixFilesystem::mkdir (RFs& aFs, const wchar_t* aPath, int perms, int& anErrno) |
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94 { |
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95 TParse name; |
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96 TInt err=GetFullPath(name,(const TText16 *)aPath,aFs,NULL); |
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97 if (!err) |
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98 { |
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99 TPtrC path=name.DriveAndPath(); |
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100 err=aFs.MkDir(path); |
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101 if (!err) |
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102 { |
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103 if ((perms&S_IWUSR)==0) |
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104 err=aFs.SetAtt(path,KEntryAttReadOnly,0); |
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105 } |
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106 } |
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107 return MapError(err,anErrno); |
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108 } |
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109 |
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110 int PosixFilesystem::stat (RFs& aFs, const wchar_t* name, struct stat *st, int& anErrno) |
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111 { |
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112 TFullName fullName; |
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113 TInt err=GetFullFile(fullName,(const TText16*)name,aFs); |
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114 if (!err) |
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115 { |
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116 TEntry entry; |
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117 if (fullName.Length()==3) |
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118 { |
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119 entry.iAtt=KEntryAttDir; |
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120 entry.iModified==TTime(0); |
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121 } |
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122 else |
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123 err=aFs.Entry(fullName,entry); |
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124 if (!err) |
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125 { |
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126 st->st_size = entry.iSize; |
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127 st->st_dev = st->st_rdev = (dev_t)TDriveUnit(fullName); |
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128 CFileDesc::MapStat(*st, entry.iModified, entry.iAtt); |
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129 return 0; |
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130 } |
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131 } |
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132 return MapError(err, anErrno); |
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133 } |
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134 |
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135 int PosixFilesystem::chmod (RFs& aFs, const wchar_t* name, int perms, int& anErrno) |
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136 { |
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137 TFullName fullName; |
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138 TInt err=GetFullFile(fullName,(const TText16*)name,aFs); |
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139 if (!err) |
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140 { |
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141 if ((perms&S_IWUSR)==0) |
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142 err=aFs.SetAtt(fullName,KEntryAttReadOnly,0); |
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143 else |
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144 err=aFs.SetAtt(fullName,0,KEntryAttReadOnly); |
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145 } |
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146 return MapError(err, anErrno); |
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147 } |
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148 |
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149 int PosixFilesystem::unlink (RFs& aFs, const wchar_t* name, int& anErrno) |
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150 { |
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151 TFullName fullName; |
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152 TInt err=GetFullFile(fullName, (TText16*)name, aFs); |
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153 if (!err) |
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154 { |
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155 TUint att=0; |
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156 err=aFs.Att(fullName, att); |
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157 if (!err) |
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158 if (att&KEntryAttDir) |
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159 err=EPERM; |
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160 else |
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161 err=aFs.Delete(fullName); |
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162 } |
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163 return MapError(err, anErrno); |
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164 } |
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165 |
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166 int PosixFilesystem::rename (RFs& aFs, const wchar_t* oldname, const wchar_t* newname, int& anErrno) |
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167 { |
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168 TFileName oldFullName; |
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169 TInt err = GetFullFile(oldFullName,(const TText16 *)oldname,aFs); |
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170 if (!err) |
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171 { |
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172 TFileName newFullName; |
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173 err = GetFullFile(newFullName,(const TText16 *)newname,aFs); |
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174 if (!err) |
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175 { |
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176 // ANSI doesn't require specific handling when newname exists, |
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177 // so we can just use the EPOC32 semantics and insist that |
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178 // newname doesn't currently exist. |
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179 err=aFs.Rename(oldFullName,newFullName); |
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180 } |
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181 } |
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182 return MapError(err, anErrno); |
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183 } |
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184 |
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185 |
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186 TInt PosixFilesystem::ResolvePath (RFs& aFs, TParse& aResult, const wchar_t* path, TDes* aFilename) |
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187 { |
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188 return GetFullPath(aResult,(const TText16*)path,aFs,aFilename); |
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189 } |
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190 |
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191 |
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192 #ifdef __WINS__ |
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193 TInt PosixFilesystem::SetDefaultDir (RFs& /*aFs*/) |
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194 { |
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195 // NB. don't do this on WINS because the executable is |
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196 // something like w:\epoc32\release\wins\deb\mytest.exe (or just mytest.exe or |
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197 // even ./mytest !!) |
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198 return KErrNone; |
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199 } |
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200 #else |
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201 TInt PosixFilesystem::SetDefaultDir (RFs& aFs) |
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202 { |
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203 TParse parse; |
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204 parse.Set(RProcess().FileName(), NULL, NULL); |
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205 #ifdef __SECURE_DATA__ |
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206 return aFs.SetSessionToPrivate(TDriveUnit(parse.Drive())); |
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207 #else |
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208 return aFs.SetSessionPath(parse.DriveAndPath()); |
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209 #endif |
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210 } |
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211 #endif |