diff options
Diffstat (limited to 'src/libs/xpcom18a4/xpcom/obsolete/nsFileSpecUnix.cpp')
| -rw-r--r-- | src/libs/xpcom18a4/xpcom/obsolete/nsFileSpecUnix.cpp | 703 |
1 files changed, 703 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/obsolete/nsFileSpecUnix.cpp b/src/libs/xpcom18a4/xpcom/obsolete/nsFileSpecUnix.cpp new file mode 100644 index 00000000..8acb6330 --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/obsolete/nsFileSpecUnix.cpp @@ -0,0 +1,703 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is mozilla.org code. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Henry Sobotka <sobotka@axess.com> + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +// This file is included by nsFileSpec.cpp, and includes the Unix-specific +// implementations. + +#include <sys/stat.h> +#include <sys/param.h> +#include <errno.h> +#include <dirent.h> +#include <unistd.h> +#include <stdlib.h> +#include <limits.h> +#include "xpcom-private.h" +#include "nsError.h" +#include "prio.h" /* for PR_Rename */ +#include "nsAutoBuffer.h" + +#if defined(_SCO_DS) +#define _SVID3 /* for statvfs.h */ +#endif + +#ifdef HAVE_SYS_STATVFS_H +#include <sys/statvfs.h> +#endif + +#ifdef HAVE_SYS_VFS_H +#include <sys/vfs.h> +#endif + +#ifdef HAVE_SYS_STATFS_H +#include <sys/statfs.h> +#endif + +#ifdef HAVE_SYS_MOUNT_H +#include <sys/mount.h> +#undef Free +#endif + +#ifdef HAVE_STATVFS +#define STATFS statvfs +#else +#define STATFS statfs +#endif + +#ifndef MAXPATHLEN +#define MAXPATHLEN 1024 /* Guessing this is okay. Works for SCO. */ +#endif + +#if defined(__QNX__) +#include <unix.h> /* for realpath */ +#define f_bavail f_bfree +extern "C" int truncate(const char *, off_t); +#endif + +#if defined(SUNOS4) +extern "C" int statfs(char *, struct statfs *); +#endif + +#if defined(OSF1) +extern "C" int statvfs(const char *, struct statvfs *); +#endif + +#ifdef XP_MACOSX +static void CopyUTF8toUTF16NFC(const nsACString& aSrc, nsAString& aResult); +#endif + +//---------------------------------------------------------------------------------------- +void nsFileSpecHelpers::Canonify(nsSimpleCharString& ioPath, PRBool inMakeDirs) +// Canonify, make absolute, and check whether directories exist +//---------------------------------------------------------------------------------------- +{ + if (ioPath.IsEmpty()) + return; + if (inMakeDirs) + { + const mode_t mode = 0700; + nsFileSpecHelpers::MakeAllDirectories((const char*)ioPath, mode); + } + + errno = 0; // needed? + + if (ioPath[0] != '/') + { + // the ioPath that was passed in is relative. We must cat it to the cwd. + char buffer[MAXPATHLEN]; + + (void) getcwd(buffer, MAXPATHLEN); + + strcat(buffer, "/"); + strcat(buffer, ioPath); + + ioPath = buffer; + } +} // nsFileSpecHelpers::Canonify + +//---------------------------------------------------------------------------------------- +void nsFileSpec::SetLeafName(const char* inLeafName) +//---------------------------------------------------------------------------------------- +{ + mPath.LeafReplace('/', inLeafName); +} // nsFileSpec::SetLeafName + +//---------------------------------------------------------------------------------------- +char* nsFileSpec::GetLeafName() const +//---------------------------------------------------------------------------------------- +{ +#ifndef XP_MACOSX + return mPath.GetLeaf('/'); +#else + char *name = mPath.GetLeaf('/'); + if (!name || !*name) + return name; + nsAutoString nameInNFC; + CopyUTF8toUTF16NFC(nsDependentCString(name), nameInNFC); + nsCRT::free(name); + return nsCRT::strdup(NS_ConvertUTF16toUTF8(nameInNFC).get()); +#endif +} // nsFileSpec::GetLeafName + +//---------------------------------------------------------------------------------------- +PRBool nsFileSpec::Exists() const +//---------------------------------------------------------------------------------------- +{ + struct stat st; + return !mPath.IsEmpty() && 0 == stat(mPath, &st); +} // nsFileSpec::Exists + +//---------------------------------------------------------------------------------------- +void nsFileSpec::GetModDate(TimeStamp& outStamp) const +//---------------------------------------------------------------------------------------- +{ + struct stat st; + if (!mPath.IsEmpty() && stat(mPath, &st) == 0) + outStamp = st.st_mtime; + else + outStamp = 0; +} // nsFileSpec::GetModDate + +//---------------------------------------------------------------------------------------- +PRUint32 nsFileSpec::GetFileSize() const +//---------------------------------------------------------------------------------------- +{ + struct stat st; + if (!mPath.IsEmpty() && stat(mPath, &st) == 0) + return (PRUint32)st.st_size; + return 0; +} // nsFileSpec::GetFileSize + +//---------------------------------------------------------------------------------------- +PRBool nsFileSpec::IsFile() const +//---------------------------------------------------------------------------------------- +{ + struct stat st; + return !mPath.IsEmpty() && stat(mPath, &st) == 0 && S_ISREG(st.st_mode); +} // nsFileSpec::IsFile + +//---------------------------------------------------------------------------------------- +PRBool nsFileSpec::IsDirectory() const +//---------------------------------------------------------------------------------------- +{ + struct stat st; + return !mPath.IsEmpty() && 0 == stat(mPath, &st) && S_ISDIR(st.st_mode); +} // nsFileSpec::IsDirectory + +//---------------------------------------------------------------------------------------- +PRBool nsFileSpec::IsHidden() const +//---------------------------------------------------------------------------------------- +{ + PRBool hidden = PR_FALSE; + char *leafname = GetLeafName(); + if (nsnull != leafname) + { + // rjc: don't return ".", "..", or any file/directory that begins with a "." + + /* if ((!strcmp(leafname, ".")) || (!strcmp(leafname, ".."))) */ + if (leafname[0] == '.') + { + hidden = PR_TRUE; + } + nsCRT::free(leafname); + } + return hidden; +} // nsFileSpec::IsHidden + +//---------------------------------------------------------------------------------------- +PRBool nsFileSpec::IsSymlink() const +//---------------------------------------------------------------------------------------- +{ + struct stat st; + if (!mPath.IsEmpty() && stat(mPath, &st) == 0 && S_ISLNK(st.st_mode)) + return PR_TRUE; + + return PR_FALSE; +} // nsFileSpec::IsSymlink + +//---------------------------------------------------------------------------------------- +nsresult nsFileSpec::ResolveSymlink(PRBool& wasAliased) +//---------------------------------------------------------------------------------------- +{ + wasAliased = PR_FALSE; + + char resolvedPath[MAXPATHLEN]; + int charCount = readlink(mPath, (char*)&resolvedPath, MAXPATHLEN); + if (0 < charCount) + { + if (MAXPATHLEN > charCount) + resolvedPath[charCount] = '\0'; + + wasAliased = PR_TRUE; + + /* if it's not an absolute path, + replace the leaf with what got resolved */ + if (resolvedPath[0] != '/') { + SetLeafName(resolvedPath); + } + else { + mPath = (char*)&resolvedPath; + } + + char* canonicalPath = realpath((const char *)mPath, resolvedPath); + NS_ASSERTION(canonicalPath, "realpath failed"); + if (canonicalPath) { + mPath = (char*)&resolvedPath; + } + else { + return NS_ERROR_FAILURE; + } + } + + return NS_OK; +} // nsFileSpec::ResolveSymlink + + +//---------------------------------------------------------------------------------------- +void nsFileSpec::GetParent(nsFileSpec& outSpec) const +//---------------------------------------------------------------------------------------- +{ + outSpec.mPath = mPath; + char* chars = (char*)outSpec.mPath; + chars[outSpec.mPath.Length() - 1] = '\0'; // avoid trailing separator, if any + char* cp = strrchr(chars, '/'); + if (cp++) + outSpec.mPath.SetLength(cp - chars); // truncate. +} // nsFileSpec::GetParent + +//---------------------------------------------------------------------------------------- +void nsFileSpec::operator += (const char* inRelativePath) +//---------------------------------------------------------------------------------------- +{ + NS_ASSERTION(inRelativePath, "Attempt to do += with a null string"); + + if (!inRelativePath || mPath.IsEmpty()) + return; + + char endChar = mPath[(int)(strlen(mPath) - 1)]; + if (endChar == '/') + mPath += "x"; + else + mPath += "/x"; + SetLeafName(inRelativePath); +} // nsFileSpec::operator += + +//---------------------------------------------------------------------------------------- +void nsFileSpec::CreateDirectory(int mode) +//---------------------------------------------------------------------------------------- +{ + // Note that mPath is canonical! + if (mPath.IsEmpty()) + return; + mkdir(mPath, mode); +} // nsFileSpec::CreateDirectory + +//---------------------------------------------------------------------------------------- +void nsFileSpec::Delete(PRBool inRecursive) const +// To check if this worked, call Exists() afterwards, see? +//---------------------------------------------------------------------------------------- +{ + if (IsDirectory()) + { + if (inRecursive) + { + for (nsDirectoryIterator i(*this, PR_FALSE); i.Exists(); i++) + { + nsFileSpec& child = (nsFileSpec&)i; + child.Delete(inRecursive); + } + } + rmdir(mPath); + } + else if (!mPath.IsEmpty()) + remove(mPath); +} // nsFileSpec::Delete + +//---------------------------------------------------------------------------------------- +void nsFileSpec::RecursiveCopy(nsFileSpec newDir) const +//---------------------------------------------------------------------------------------- +{ + if (IsDirectory()) + { + if (!(newDir.Exists())) + { + newDir.CreateDirectory(); + } + + for (nsDirectoryIterator i(*this, PR_FALSE); i.Exists(); i++) + { + nsFileSpec& child = (nsFileSpec&)i; + + if (child.IsDirectory()) + { + nsFileSpec tmpDirSpec(newDir); + + char *leafname = child.GetLeafName(); + tmpDirSpec += leafname; + nsCRT::free(leafname); + + child.RecursiveCopy(tmpDirSpec); + } + else + { + child.RecursiveCopy(newDir); + } + } + } + else if (!mPath.IsEmpty()) + { + nsFileSpec& filePath = (nsFileSpec&) *this; + + if (!(newDir.Exists())) + { + newDir.CreateDirectory(); + } + + filePath.CopyToDir(newDir); + } +} // nsFileSpec::RecursiveCopy + + +//---------------------------------------------------------------------------------------- +nsresult nsFileSpec::Truncate(PRInt32 offset) const +//---------------------------------------------------------------------------------------- +{ + char* Path = nsCRT::strdup(mPath); + + int rv = truncate(Path, offset) ; + + nsCRT::free(Path) ; + + if(!rv) + return NS_OK ; + else + return NS_ERROR_FAILURE ; +} // nsFileSpec::Truncate + +//---------------------------------------------------------------------------------------- +nsresult nsFileSpec::Rename(const char* inNewName) +//---------------------------------------------------------------------------------------- +{ + NS_ASSERTION(inNewName, "Attempt to Rename with a null string"); + + // This function should not be used to move a file on disk. + if (mPath.IsEmpty() || strchr(inNewName, '/')) + return NS_FILE_FAILURE; + + char* oldPath = nsCRT::strdup(mPath); + + SetLeafName(inNewName); + + if (PR_Rename(oldPath, mPath) != NS_OK) + { + // Could not rename, set back to the original. + mPath = oldPath; + return NS_FILE_FAILURE; + } + + nsCRT::free(oldPath); + + return NS_OK; +} // nsFileSpec::Rename + +//---------------------------------------------------------------------------------------- +static int CrudeFileCopy(const char* in, const char* out) +//---------------------------------------------------------------------------------------- +{ + struct stat in_stat; + int stat_result = -1; + + char buf [1024]; + FILE *ifp, *ofp; + int rbytes, wbytes; + + if (!in || !out) + return -1; + + stat_result = stat (in, &in_stat); + + ifp = fopen (in, "r"); + if (!ifp) + { + return -1; + } + + ofp = fopen (out, "w"); + if (!ofp) + { + fclose (ifp); + return -1; + } + + while ((rbytes = fread (buf, 1, sizeof(buf), ifp)) > 0) + { + while (rbytes > 0) + { + if ( (wbytes = fwrite (buf, 1, rbytes, ofp)) < 0 ) + { + fclose (ofp); + fclose (ifp); + unlink(out); + return -1; + } + rbytes -= wbytes; + } + } + fclose (ofp); + fclose (ifp); + + if (stat_result == 0) + chmod (out, in_stat.st_mode & 0777); + + return 0; +} // nsFileSpec::Rename + +//---------------------------------------------------------------------------------------- +nsresult nsFileSpec::CopyToDir(const nsFileSpec& inParentDirectory) const +//---------------------------------------------------------------------------------------- +{ + // We can only copy into a directory, and (for now) can not copy entire directories + nsresult result = NS_FILE_FAILURE; + + if (inParentDirectory.IsDirectory() && (! IsDirectory() ) ) + { + char *leafname = GetLeafName(); + nsSimpleCharString destPath(inParentDirectory.GetCString()); + destPath += "/"; + destPath += leafname; + nsCRT::free(leafname); + result = NS_FILE_RESULT(CrudeFileCopy(GetCString(), destPath)); + } + return result; +} // nsFileSpec::CopyToDir + +//---------------------------------------------------------------------------------------- +nsresult nsFileSpec::MoveToDir(const nsFileSpec& inNewParentDirectory) +//---------------------------------------------------------------------------------------- +{ + // We can only copy into a directory, and (for now) can not copy entire directories + nsresult result = NS_FILE_FAILURE; + + if (inNewParentDirectory.IsDirectory() && !IsDirectory()) + { + char *leafname = GetLeafName(); + nsSimpleCharString destPath(inNewParentDirectory.GetCString()); + destPath += "/"; + destPath += leafname; + nsCRT::free(leafname); + + result = NS_FILE_RESULT(CrudeFileCopy(GetCString(), (const char*)destPath)); + if (result == NS_OK) + { + // cast to fix const-ness + ((nsFileSpec*)this)->Delete(PR_FALSE); + + *this = inNewParentDirectory + GetLeafName(); + } + } + return result; +} + +//---------------------------------------------------------------------------------------- +nsresult nsFileSpec::Execute(const char* inArgs ) const +//---------------------------------------------------------------------------------------- +{ + nsresult result = NS_FILE_FAILURE; + + if (!mPath.IsEmpty() && !IsDirectory()) + { + nsSimpleCharString fileNameWithArgs = mPath + " " + inArgs; + result = NS_FILE_RESULT(system(fileNameWithArgs)); + } + + return result; + +} // nsFileSpec::Execute + +//---------------------------------------------------------------------------------------- +PRInt64 nsFileSpec::GetDiskSpaceAvailable() const +//---------------------------------------------------------------------------------------- +{ + PRInt64 bytes; /* XXX dougt needs to fix this */ + LL_I2L(bytes , LONG_MAX); // initialize to all the space in the world? + + +#if defined(HAVE_SYS_STATFS_H) || defined(HAVE_SYS_STATVFS_H) + + char curdir [MAXPATHLEN]; + if (mPath.IsEmpty()) + { + (void) getcwd(curdir, MAXPATHLEN); + if (!curdir) + return bytes; /* hope for the best as we did in cheddar */ + } + else + sprintf(curdir, "%.200s", (const char*)mPath); + + struct STATFS fs_buf; +#if defined(__QNX__) && !defined(HAVE_STATVFS) /* Maybe this should be handled differently? */ + if (STATFS(curdir, &fs_buf, 0, 0) < 0) +#else + if (STATFS(curdir, &fs_buf) < 0) +#endif + return bytes; /* hope for the best as we did in cheddar */ + +#ifdef DEBUG_DISK_SPACE + printf("DiskSpaceAvailable: %d bytes\n", + fs_buf.f_bsize * (fs_buf.f_bavail - 1)); +#endif + + PRInt64 bsize,bavail; + LL_I2L( bsize, fs_buf.f_bsize ); + LL_I2L( bavail, fs_buf.f_bavail - 1 ); + LL_MUL( bytes, bsize, bavail ); + return bytes; + +#else + /* + ** This platform doesn't have statfs or statvfs, so we don't have much + ** choice but to "hope for the best as we did in cheddar". + */ + return bytes; +#endif /* HAVE_SYS_STATFS_H or HAVE_SYS_STATVFS_H */ + +} // nsFileSpec::GetDiskSpace() + +//======================================================================================== +// nsDirectoryIterator +//======================================================================================== + +//---------------------------------------------------------------------------------------- +nsDirectoryIterator::nsDirectoryIterator(const nsFileSpec& inDirectory, PRBool resolveSymLinks) +//---------------------------------------------------------------------------------------- + : mCurrent(inDirectory) + , mExists(PR_FALSE) + , mResoveSymLinks(resolveSymLinks) + , mStarting(inDirectory) + , mDir(nsnull) + +{ + mStarting += "sysygy"; // save off the starting directory + mCurrent += "sysygy"; // prepare the path for SetLeafName + mDir = opendir((const char*)nsFilePath(inDirectory)); + ++(*this); +} // nsDirectoryIterator::nsDirectoryIterator + +//---------------------------------------------------------------------------------------- +nsDirectoryIterator::~nsDirectoryIterator() +//---------------------------------------------------------------------------------------- +{ + if (mDir) + closedir(mDir); +} // nsDirectoryIterator::nsDirectoryIterator + +//---------------------------------------------------------------------------------------- +nsDirectoryIterator& nsDirectoryIterator::operator ++ () +//---------------------------------------------------------------------------------------- +{ + mExists = PR_FALSE; + if (!mDir) + return *this; + const char dot[] = "."; + const char dotdot[] = ".."; + struct dirent* entry = readdir(mDir); + if (entry && strcmp(entry->d_name, dot) == 0) + entry = readdir(mDir); + if (entry && strcmp(entry->d_name, dotdot) == 0) + entry = readdir(mDir); + if (entry) + { + mExists = PR_TRUE; + mCurrent = mStarting; // restore mCurrent to be the starting directory. ResolveSymlink() may have taken us to another directory + mCurrent.SetLeafName(entry->d_name); + if (mResoveSymLinks) + { + PRBool ignore; + mCurrent.ResolveSymlink(ignore); + } + } + return *this; +} // nsDirectoryIterator::operator ++ + +//---------------------------------------------------------------------------------------- +nsDirectoryIterator& nsDirectoryIterator::operator -- () +//---------------------------------------------------------------------------------------- +{ + return ++(*this); // can't do it backwards. +} // nsDirectoryIterator::operator -- + +// Convert a UTF-8 string to a UTF-16 string while normalizing to +// Normalization Form C (composed Unicode). We need this because +// Mac OS X file system uses NFD (Normalization Form D : decomposed Unicode) +// while most other OS', server-side programs usually expect NFC. + +#ifdef XP_MACOSX +typedef void (*UnicodeNormalizer) (CFMutableStringRef, CFStringNormalizationForm); +static void CopyUTF8toUTF16NFC(const nsACString& aSrc, nsAString& aResult) +{ + static PRBool sChecked = PR_FALSE; + static UnicodeNormalizer sUnicodeNormalizer = NULL; + + // CFStringNormalize was not introduced until Mac OS 10.2 + if (!sChecked) { + CFBundleRef carbonBundle = + CFBundleGetBundleWithIdentifier(CFSTR("com.apple.Carbon")); + if (carbonBundle) + sUnicodeNormalizer = (UnicodeNormalizer) + ::CFBundleGetFunctionPointerForName(carbonBundle, + CFSTR("CFStringNormalize")); + sChecked = PR_TRUE; + } + + if (!sUnicodeNormalizer) { // OS X 10.1 or earlier + CopyUTF8toUTF16(aSrc, aResult); + return; + } + + const nsAFlatCString &inFlatSrc = PromiseFlatCString(aSrc); + + // The number of 16bit code units in a UTF-16 string will never be + // larger than the number of bytes in the corresponding UTF-8 string. + CFMutableStringRef inStr = + ::CFStringCreateMutable(NULL, inFlatSrc.Length()); + + if (!inStr) { + CopyUTF8toUTF16(aSrc, aResult); + return; + } + + ::CFStringAppendCString(inStr, inFlatSrc.get(), kCFStringEncodingUTF8); + + sUnicodeNormalizer(inStr, kCFStringNormalizationFormC); + + CFIndex length = CFStringGetLength(inStr); + const UniChar* chars = CFStringGetCharactersPtr(inStr); + + if (chars) + aResult.Assign(chars, length); + else { + nsAutoBuffer<UniChar, 512> buffer; + if (buffer.EnsureElemCapacity(length)) { + CFStringGetCharacters(inStr, CFRangeMake(0, length), buffer.get()); + aResult.Assign(buffer.get(), length); + } + else + CopyUTF8toUTF16(aSrc, aResult); + } + CFRelease(inStr); +} +#endif |