| 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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| 2 | /* ***** BEGIN LICENSE BLOCK *****
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| 3 | * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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| 4 | *
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| 5 | * The contents of this file are subject to the Mozilla Public License Version
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| 6 | * 1.1 (the "License"); you may not use this file except in compliance with
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| 7 | * the License. You may obtain a copy of the License at
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| 8 | * http://www.mozilla.org/MPL/
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| 9 | *
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| 10 | * Software distributed under the License is distributed on an "AS IS" basis,
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| 11 | * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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| 12 | * for the specific language governing rights and limitations under the
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| 13 | * License.
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| 14 | *
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| 15 | * The Original Code is mozilla.org code.
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| 16 | *
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| 17 | * The Initial Developer of the Original Code is
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| 18 | * Netscape Communications Corporation.
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| 19 | * Portions created by the Initial Developer are Copyright (C) 1998
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| 20 | * the Initial Developer. All Rights Reserved.
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| 21 | *
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| 22 | * Contributor(s):
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| 23 | *
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| 24 | * Alternatively, the contents of this file may be used under the terms of
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| 25 | * either of the GNU General Public License Version 2 or later (the "GPL"),
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| 26 | * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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| 27 | * in which case the provisions of the GPL or the LGPL are applicable instead
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| 28 | * of those above. If you wish to allow use of your version of this file only
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| 29 | * under the terms of either the GPL or the LGPL, and not to allow others to
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| 30 | * use your version of this file under the terms of the MPL, indicate your
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| 31 | * decision by deleting the provisions above and replace them with the notice
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| 32 | * and other provisions required by the GPL or the LGPL. If you do not delete
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| 33 | * the provisions above, a recipient may use your version of this file under
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| 34 | * the terms of any one of the MPL, the GPL or the LGPL.
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| 35 | *
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| 36 | * ***** END LICENSE BLOCK ***** */
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| 37 |
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| 38 | // This file is included by nsFileSpec.cpp, and includes the Unix-specific
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| 39 | // implementations.
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| 40 |
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| 41 | #include <sys/stat.h>
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| 42 | #include <sys/param.h>
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| 43 | #include <errno.h>
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| 44 | #include <dirent.h>
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| 45 | #include <unistd.h>
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| 46 | #include <stdlib.h>
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| 47 | #include <limits.h>
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| 48 | #include "nsError.h"
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| 49 | #include "prio.h" /* for PR_Rename */
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| 50 |
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| 51 | // BeOS specific headers
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| 52 | #include <Entry.h>
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| 53 | #include <Path.h>
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| 54 | #include <Volume.h>
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| 55 |
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| 56 | //----------------------------------------------------------------------------------------
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| 57 | void nsFileSpecHelpers::Canonify(nsSimpleCharString& ioPath, PRBool inMakeDirs)
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| 58 | // Canonify, make absolute, and check whether directories exist
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| 59 | //----------------------------------------------------------------------------------------
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| 60 | {
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| 61 | if (ioPath.IsEmpty())
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| 62 | return;
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| 63 | if (inMakeDirs)
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| 64 | {
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| 65 | const mode_t mode = 0700;
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| 66 | nsFileSpecHelpers::MakeAllDirectories((const char*)ioPath, mode);
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| 67 | }
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| 68 | char buffer[MAXPATHLEN];
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| 69 | errno = 0;
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| 70 | *buffer = '\0';
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| 71 | BEntry e((const char *)ioPath, true);
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| 72 | BPath p;
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| 73 | e.GetPath(&p);
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| 74 | ioPath = p.Path();
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| 75 | } // nsFileSpecHelpers::Canonify
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| 76 |
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| 77 | //----------------------------------------------------------------------------------------
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| 78 | void nsFileSpec::SetLeafName(const char* inLeafName)
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| 79 | //----------------------------------------------------------------------------------------
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| 80 | {
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| 81 | mPath.LeafReplace('/', inLeafName);
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| 82 | } // nsFileSpec::SetLeafName
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| 83 |
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| 84 | //----------------------------------------------------------------------------------------
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| 85 | char* nsFileSpec::GetLeafName() const
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| 86 | //----------------------------------------------------------------------------------------
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| 87 | {
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| 88 | return mPath.GetLeaf('/');
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| 89 | } // nsFileSpec::GetLeafName
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| 90 |
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| 91 | //----------------------------------------------------------------------------------------
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| 92 | PRBool nsFileSpec::Exists() const
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| 93 | //----------------------------------------------------------------------------------------
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| 94 | {
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| 95 | struct stat st;
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| 96 | return !mPath.IsEmpty() && 0 == stat(mPath, &st);
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| 97 | } // nsFileSpec::Exists
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| 98 |
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| 99 | //----------------------------------------------------------------------------------------
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| 100 | void nsFileSpec::GetModDate(TimeStamp& outStamp) const
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| 101 | //----------------------------------------------------------------------------------------
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| 102 | {
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| 103 | struct stat st;
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| 104 | if (!mPath.IsEmpty() && stat(mPath, &st) == 0)
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| 105 | outStamp = st.st_mtime;
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| 106 | else
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| 107 | outStamp = 0;
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| 108 | } // nsFileSpec::GetModDate
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| 109 |
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| 110 | //----------------------------------------------------------------------------------------
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| 111 | PRUint32 nsFileSpec::GetFileSize() const
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| 112 | //----------------------------------------------------------------------------------------
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| 113 | {
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| 114 | struct stat st;
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| 115 | if (!mPath.IsEmpty() && stat(mPath, &st) == 0)
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| 116 | return (PRUint32)st.st_size;
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| 117 | return 0;
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| 118 | } // nsFileSpec::GetFileSize
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| 119 |
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| 120 | //----------------------------------------------------------------------------------------
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| 121 | PRBool nsFileSpec::IsFile() const
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| 122 | //----------------------------------------------------------------------------------------
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| 123 | {
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| 124 | struct stat st;
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| 125 | return !mPath.IsEmpty() && stat(mPath, &st) == 0 && S_ISREG(st.st_mode);
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| 126 | } // nsFileSpec::IsFile
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| 127 |
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| 128 | //----------------------------------------------------------------------------------------
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| 129 | PRBool nsFileSpec::IsDirectory() const
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| 130 | //----------------------------------------------------------------------------------------
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| 131 | {
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| 132 | struct stat st;
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| 133 | return !mPath.IsEmpty() && 0 == stat(mPath, &st) && S_ISDIR(st.st_mode);
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| 134 | } // nsFileSpec::IsDirectory
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| 135 |
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| 136 | //----------------------------------------------------------------------------------------
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| 137 | PRBool nsFileSpec::IsHidden() const
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| 138 | //----------------------------------------------------------------------------------------
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| 139 | {
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| 140 | PRBool hidden = PR_TRUE;
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| 141 | char *leafname = GetLeafName();
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| 142 | if (nsnull != leafname)
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| 143 | {
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| 144 | if ((!strcmp(leafname, ".")) || (!strcmp(leafname, "..")))
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| 145 | {
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| 146 | hidden = PR_FALSE;
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| 147 | }
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| 148 | nsCRT::free(leafname);
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| 149 | }
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| 150 | return hidden;
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| 151 | } // nsFileSpec::IsHidden
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| 152 |
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| 153 | //----------------------------------------------------------------------------------------
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| 154 | PRBool nsFileSpec::IsSymlink() const
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| 155 | //----------------------------------------------------------------------------------------
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| 156 | {
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| 157 | struct stat st;
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| 158 | if (!mPath.IsEmpty() && stat(mPath, &st) == 0 && S_ISLNK(st.st_mode))
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| 159 | return PR_TRUE;
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| 160 |
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| 161 | return PR_FALSE;
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| 162 | } // nsFileSpec::IsSymlink
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| 163 |
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| 164 | //----------------------------------------------------------------------------------------
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| 165 | nsresult nsFileSpec::ResolveSymlink(PRBool& wasAliased)
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| 166 | //----------------------------------------------------------------------------------------
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| 167 | {
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| 168 | wasAliased = PR_FALSE;
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| 169 |
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| 170 | char resolvedPath[MAXPATHLEN];
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| 171 | int charCount = readlink(mPath, (char*)&resolvedPath, MAXPATHLEN);
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| 172 | if (0 < charCount)
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| 173 | {
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| 174 | if (MAXPATHLEN > charCount)
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| 175 | resolvedPath[charCount] = '\0';
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| 176 |
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| 177 | wasAliased = PR_TRUE;
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| 178 | /* if it's not an absolute path,
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| 179 | replace the leaf with what got resolved */
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| 180 | if (resolvedPath[0] != '/') {
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| 181 | SetLeafName(resolvedPath);
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| 182 | }
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| 183 | else {
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| 184 | mPath = (char*)resolvedPath;
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| 185 | }
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| 186 |
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| 187 | BEntry e((const char *)mPath, true); // traverse symlink
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| 188 | BPath p;
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| 189 | status_t err;
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| 190 | err = e.GetPath(&p);
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| 191 | NS_ASSERTION(err == B_OK, "realpath failed");
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| 192 |
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| 193 | const char* canonicalPath = p.Path();
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| 194 | if(err == B_OK)
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| 195 | mPath = (char*)canonicalPath;
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| 196 | else
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| 197 | return NS_ERROR_FAILURE;
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| 198 | }
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| 199 | return NS_OK;
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| 200 | } // nsFileSpec::ResolveSymlink
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| 201 |
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| 202 | //----------------------------------------------------------------------------------------
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| 203 | void nsFileSpec::GetParent(nsFileSpec& outSpec) const
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| 204 | //----------------------------------------------------------------------------------------
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| 205 | {
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| 206 | outSpec.mPath = mPath;
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| 207 | char* chars = (char*)outSpec.mPath;
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| 208 | chars[outSpec.mPath.Length() - 1] = '\0'; // avoid trailing separator, if any
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| 209 | char* cp = strrchr(chars, '/');
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| 210 | if (cp++)
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| 211 | outSpec.mPath.SetLength(cp - chars); // truncate.
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| 212 | } // nsFileSpec::GetParent
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| 213 |
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| 214 | //----------------------------------------------------------------------------------------
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| 215 | void nsFileSpec::operator += (const char* inRelativePath)
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| 216 | //----------------------------------------------------------------------------------------
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| 217 | {
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| 218 | if (!inRelativePath || mPath.IsEmpty())
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| 219 | return;
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| 220 |
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| 221 | char endChar = mPath[(int)(strlen(mPath) - 1)];
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| 222 | if (endChar == '/')
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| 223 | mPath += "x";
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| 224 | else
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| 225 | mPath += "/x";
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| 226 | SetLeafName(inRelativePath);
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| 227 | } // nsFileSpec::operator +=
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| 228 |
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| 229 | //----------------------------------------------------------------------------------------
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| 230 | void nsFileSpec::CreateDirectory(int mode)
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| 231 | //----------------------------------------------------------------------------------------
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| 232 | {
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| 233 | // Note that mPath is canonical!
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| 234 | if (mPath.IsEmpty())
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| 235 | return;
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| 236 | mkdir(mPath, mode);
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| 237 | } // nsFileSpec::CreateDirectory
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| 238 |
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| 239 | //----------------------------------------------------------------------------------------
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| 240 | void nsFileSpec::Delete(PRBool inRecursive) const
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| 241 | // To check if this worked, call Exists() afterwards, see?
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| 242 | //----------------------------------------------------------------------------------------
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| 243 | {
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| 244 | if (IsDirectory())
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| 245 | {
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| 246 | if (inRecursive)
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| 247 | {
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| 248 | for (nsDirectoryIterator i(*this, PR_FALSE); i.Exists(); i++)
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| 249 | {
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| 250 | nsFileSpec& child = (nsFileSpec&)i;
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| 251 | child.Delete(inRecursive);
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| 252 | }
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| 253 | }
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| 254 | rmdir(mPath);
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| 255 | }
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| 256 | else if (!mPath.IsEmpty())
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| 257 | remove(mPath);
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| 258 | } // nsFileSpec::Delete
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| 259 |
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| 260 | //----------------------------------------------------------------------------------------
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| 261 | void nsFileSpec::RecursiveCopy(nsFileSpec newDir) const
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| 262 | //----------------------------------------------------------------------------------------
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| 263 | {
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| 264 | if (IsDirectory())
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| 265 | {
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| 266 | if (!(newDir.Exists()))
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| 267 | {
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| 268 | newDir.CreateDirectory();
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| 269 | }
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| 270 |
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| 271 | for (nsDirectoryIterator i(*this, PR_FALSE); i.Exists(); i++)
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| 272 | {
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| 273 | nsFileSpec& child = (nsFileSpec&)i;
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| 274 |
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| 275 | if (child.IsDirectory())
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| 276 | {
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| 277 | nsFileSpec tmpDirSpec(newDir);
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| 278 |
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| 279 | char *leafname = child.GetLeafName();
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| 280 | tmpDirSpec += leafname;
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| 281 | nsCRT::free(leafname);
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| 282 |
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| 283 | child.RecursiveCopy(tmpDirSpec);
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| 284 | }
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| 285 | else
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| 286 | {
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| 287 | child.RecursiveCopy(newDir);
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| 288 | }
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| 289 | }
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| 290 | }
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| 291 | else if (!mPath.IsEmpty())
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| 292 | {
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| 293 | nsFileSpec& filePath = (nsFileSpec&) *this;
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| 294 |
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| 295 | if (!(newDir.Exists()))
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| 296 | {
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| 297 | newDir.CreateDirectory();
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| 298 | }
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| 299 |
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| 300 | filePath.CopyToDir(newDir);
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| 301 | }
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| 302 | } // nsFileSpec::RecursiveCopy
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| 303 |
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| 304 | //----------------------------------------------------------------------------------------
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| 305 | nsresult nsFileSpec::Truncate(PRInt32 offset) const
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| 306 | //----------------------------------------------------------------------------------------
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| 307 | {
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| 308 | char* Path = nsCRT::strdup(mPath);
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| 309 |
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| 310 | int rv = truncate(Path, offset) ;
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| 311 |
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| 312 | nsCRT::free(Path) ;
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| 313 |
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| 314 | if(!rv)
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| 315 | return NS_OK ;
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| 316 | else
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| 317 | return NS_ERROR_FAILURE ;
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| 318 | } // nsFileSpec::Truncate
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| 319 |
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| 320 | //----------------------------------------------------------------------------------------
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| 321 | nsresult nsFileSpec::Rename(const char* inNewName)
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| 322 | //----------------------------------------------------------------------------------------
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| 323 | {
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| 324 | // This function should not be used to move a file on disk.
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| 325 | if (mPath.IsEmpty() || strchr(inNewName, '/'))
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| 326 | return NS_FILE_FAILURE;
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| 327 |
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| 328 | char* oldPath = nsCRT::strdup(mPath);
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| 329 |
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| 330 | SetLeafName(inNewName);
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| 331 |
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| 332 | if (PR_Rename(oldPath, mPath) != NS_OK)
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| 333 | {
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| 334 | // Could not rename, set back to the original.
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| 335 | mPath = oldPath;
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| 336 | return NS_FILE_FAILURE;
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| 337 | }
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| 338 |
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| 339 | nsCRT::free(oldPath);
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| 340 |
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| 341 | return NS_OK;
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| 342 | } // nsFileSpec::Rename
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| 343 |
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| 344 | //----------------------------------------------------------------------------------------
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| 345 | static int CrudeFileCopy(const char* in, const char* out)
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| 346 | //----------------------------------------------------------------------------------------
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| 347 | {
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| 348 | struct stat in_stat;
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| 349 | int stat_result = -1;
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| 350 |
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| 351 | char buf [1024];
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| 352 | FILE *ifp, *ofp;
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| 353 | int rbytes, wbytes;
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| 354 |
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| 355 | if (!in || !out)
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| 356 | return -1;
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| 357 |
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| 358 | stat_result = stat (in, &in_stat);
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| 359 |
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| 360 | ifp = fopen (in, "r");
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| 361 | if (!ifp)
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| 362 | {
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| 363 | return -1;
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| 364 | }
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| 365 |
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| 366 | ofp = fopen (out, "w");
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| 367 | if (!ofp)
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| 368 | {
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| 369 | fclose (ifp);
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| 370 | return -1;
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| 371 | }
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| 372 |
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| 373 | while ((rbytes = fread (buf, 1, sizeof(buf), ifp)) > 0)
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| 374 | {
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| 375 | while (rbytes > 0)
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| 376 | {
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| 377 | if ( (wbytes = fwrite (buf, 1, rbytes, ofp)) < 0 )
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| 378 | {
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| 379 | fclose (ofp);
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| 380 | fclose (ifp);
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| 381 | unlink(out);
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| 382 | return -1;
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| 383 | }
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| 384 | rbytes -= wbytes;
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| 385 | }
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| 386 | }
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| 387 | fclose (ofp);
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| 388 | fclose (ifp);
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| 389 |
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| 390 | if (stat_result == 0)
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| 391 | chmod (out, in_stat.st_mode & 0777);
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| 392 |
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| 393 | return 0;
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| 394 | } // nsFileSpec::Rename
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| 395 |
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| 396 | //----------------------------------------------------------------------------------------
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| 397 | nsresult nsFileSpec::CopyToDir(const nsFileSpec& inParentDirectory) const
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| 398 | //----------------------------------------------------------------------------------------
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| 399 | {
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| 400 | // We can only copy into a directory, and (for now) can not copy entire directories
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| 401 | nsresult result = NS_FILE_FAILURE;
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| 402 |
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| 403 | if (inParentDirectory.IsDirectory() && (! IsDirectory() ) )
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| 404 | {
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| 405 | char *leafname = GetLeafName();
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| 406 | nsSimpleCharString destPath(inParentDirectory.GetCString());
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| 407 | destPath += "/";
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| 408 | destPath += leafname;
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| 409 | nsCRT::free(leafname);
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| 410 | result = NS_FILE_RESULT(CrudeFileCopy(GetCString(), destPath));
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| 411 | }
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| 412 | return result;
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| 413 | } // nsFileSpec::CopyToDir
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| 414 |
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| 415 | //----------------------------------------------------------------------------------------
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| 416 | nsresult nsFileSpec::MoveToDir(const nsFileSpec& inNewParentDirectory)
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| 417 | //----------------------------------------------------------------------------------------
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| 418 | {
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| 419 | // We can only copy into a directory, and (for now) can not copy entire directories
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| 420 | nsresult result = NS_FILE_FAILURE;
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| 421 |
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| 422 | if (inNewParentDirectory.IsDirectory() && !IsDirectory())
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| 423 | {
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| 424 | char *leafname = GetLeafName();
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| 425 | nsSimpleCharString destPath(inNewParentDirectory.GetCString());
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| 426 | destPath += "/";
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| 427 | destPath += leafname;
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| 428 | nsCRT::free(leafname);
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| 429 |
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| 430 | result = NS_FILE_RESULT(CrudeFileCopy(GetCString(), (const char*)destPath));
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| 431 | if (result == NS_OK)
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| 432 | {
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| 433 | // cast to fix const-ness
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| 434 | ((nsFileSpec*)this)->Delete(PR_FALSE);
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| 435 |
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| 436 | *this = inNewParentDirectory + GetLeafName();
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| 437 | }
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| 438 | }
|
|---|
| 439 | return result;
|
|---|
| 440 | }
|
|---|
| 441 |
|
|---|
| 442 | //----------------------------------------------------------------------------------------
|
|---|
| 443 | nsresult nsFileSpec::Execute(const char* inArgs ) const
|
|---|
| 444 | //----------------------------------------------------------------------------------------
|
|---|
| 445 | {
|
|---|
| 446 | nsresult result = NS_FILE_FAILURE;
|
|---|
| 447 |
|
|---|
| 448 | if (!mPath.IsEmpty() && !IsDirectory())
|
|---|
| 449 | {
|
|---|
| 450 | nsSimpleCharString fileNameWithArgs = mPath + " " + inArgs;
|
|---|
| 451 | result = NS_FILE_RESULT(system(fileNameWithArgs));
|
|---|
| 452 | }
|
|---|
| 453 |
|
|---|
| 454 | return result;
|
|---|
| 455 |
|
|---|
| 456 | } // nsFileSpec::Execute
|
|---|
| 457 |
|
|---|
| 458 | //----------------------------------------------------------------------------------------
|
|---|
| 459 | PRInt64 nsFileSpec::GetDiskSpaceAvailable() const
|
|---|
| 460 | //----------------------------------------------------------------------------------------
|
|---|
| 461 | {
|
|---|
| 462 | char curdir [MAXPATHLEN];
|
|---|
| 463 | if (!mPath || !*mPath)
|
|---|
| 464 | {
|
|---|
| 465 | (void) getcwd(curdir, MAXPATHLEN);
|
|---|
| 466 | if (!curdir)
|
|---|
| 467 | return ULONGLONG_MAX; /* hope for the best as we did in cheddar */
|
|---|
| 468 | }
|
|---|
| 469 | else
|
|---|
| 470 | sprintf(curdir, "%.200s", (const char*)mPath);
|
|---|
| 471 |
|
|---|
| 472 | BEntry e(curdir);
|
|---|
| 473 | if(e.InitCheck() != B_OK)
|
|---|
| 474 | return ULONGLONG_MAX; /* hope for the best as we did in cheddar */
|
|---|
| 475 | entry_ref ref;
|
|---|
| 476 | e.GetRef(&ref);
|
|---|
| 477 | BVolume v(ref.device);
|
|---|
| 478 |
|
|---|
| 479 | #ifdef DEBUG_DISK_SPACE
|
|---|
| 480 | printf("DiskSpaceAvailable: %d bytes\n", space);
|
|---|
| 481 | #endif
|
|---|
| 482 | return v.FreeBytes();
|
|---|
| 483 | } // nsFileSpec::GetDiskSpace()
|
|---|
| 484 |
|
|---|
| 485 | //========================================================================================
|
|---|
| 486 | // nsDirectoryIterator
|
|---|
| 487 | //========================================================================================
|
|---|
| 488 |
|
|---|
| 489 | //----------------------------------------------------------------------------------------
|
|---|
| 490 | nsDirectoryIterator::nsDirectoryIterator(
|
|---|
| 491 | const nsFileSpec& inDirectory
|
|---|
| 492 | , PRBool resolveSymlinks)
|
|---|
| 493 | //----------------------------------------------------------------------------------------
|
|---|
| 494 | : mCurrent(inDirectory)
|
|---|
| 495 | , mStarting(inDirectory)
|
|---|
| 496 | , mExists(PR_FALSE)
|
|---|
| 497 | , mDir(nsnull)
|
|---|
| 498 | , mResoveSymLinks(resolveSymlinks)
|
|---|
| 499 | {
|
|---|
| 500 | mStarting += "sysygy"; // save off the starting directory
|
|---|
| 501 | mCurrent += "sysygy"; // prepare the path for SetLeafName
|
|---|
| 502 | mDir = opendir((const char*)nsFilePath(inDirectory));
|
|---|
| 503 | ++(*this);
|
|---|
| 504 | } // nsDirectoryIterator::nsDirectoryIterator
|
|---|
| 505 |
|
|---|
| 506 | //----------------------------------------------------------------------------------------
|
|---|
| 507 | nsDirectoryIterator::~nsDirectoryIterator()
|
|---|
| 508 | //----------------------------------------------------------------------------------------
|
|---|
| 509 | {
|
|---|
| 510 | if (mDir)
|
|---|
| 511 | closedir(mDir);
|
|---|
| 512 | } // nsDirectoryIterator::nsDirectoryIterator
|
|---|
| 513 |
|
|---|
| 514 | //----------------------------------------------------------------------------------------
|
|---|
| 515 | nsDirectoryIterator& nsDirectoryIterator::operator ++ ()
|
|---|
| 516 | //----------------------------------------------------------------------------------------
|
|---|
| 517 | {
|
|---|
| 518 | mExists = PR_FALSE;
|
|---|
| 519 | if (!mDir)
|
|---|
| 520 | return *this;
|
|---|
| 521 | char* dot = ".";
|
|---|
| 522 | char* dotdot = "..";
|
|---|
| 523 | struct dirent* entry = readdir(mDir);
|
|---|
| 524 | if (entry && strcmp(entry->d_name, dot) == 0)
|
|---|
| 525 | entry = readdir(mDir);
|
|---|
| 526 | if (entry && strcmp(entry->d_name, dotdot) == 0)
|
|---|
| 527 | entry = readdir(mDir);
|
|---|
| 528 | if (entry)
|
|---|
| 529 | {
|
|---|
| 530 | mExists = PR_TRUE;
|
|---|
| 531 | mCurrent = mStarting; // restore mCurrent to be the starting directory. ResolveSymlink() may have taken us to another directory
|
|---|
| 532 | mCurrent.SetLeafName(entry->d_name);
|
|---|
| 533 | if (mResoveSymLinks)
|
|---|
| 534 | {
|
|---|
| 535 | PRBool ignore;
|
|---|
| 536 | mCurrent.ResolveSymlink(ignore);
|
|---|
| 537 | }
|
|---|
| 538 | }
|
|---|
| 539 | return *this;
|
|---|
| 540 | } // nsDirectoryIterator::operator ++
|
|---|
| 541 |
|
|---|
| 542 | //----------------------------------------------------------------------------------------
|
|---|
| 543 | nsDirectoryIterator& nsDirectoryIterator::operator -- ()
|
|---|
| 544 | //----------------------------------------------------------------------------------------
|
|---|
| 545 | {
|
|---|
| 546 | return ++(*this); // can't do it backwards.
|
|---|
| 547 | } // nsDirectoryIterator::operator --
|
|---|
