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fix launchpad bug #201974, encfsctl export failed on symlinks

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git-svn-id: http://encfs.googlecode.com/svn/trunk@17 db9cf616-1c43-0410-9cb8-a902689de0d6
This commit is contained in:
Valient Gough 2008-04-14 00:09:32 +00:00
parent 6d081f5c99
commit acaa244cbc
3 changed files with 107 additions and 19 deletions
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44
ChangeLog
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@ -1,3 +1,47 @@
Sun Apr 13 2008 Valient Gough <vgough@pobox.com>
* switch to V6 XML config format using boost serialization module
* add better boost autoconf detection
Fri Apr 11 2008 Valient Gough <vgough@pobox.com>
* bump version to 1.4.2
* add zero-block pass-through option, enabling allow-holes code
* add error checking to setfsuid/setfsgid calls
Tue Mar 25 2008 Valient Gough <vgough@pobox.com>
* check for additional arguments to xattr functions
Sat Mar 22 2008 Valient Gough <vgough@pobox.com>
* remove ulockmgr support, since it isn't needed
Sun Jan 27 2008 Valient Gough <vgough@pobox.com>
* fix compile problem if ulockmgr isn't available
Tue Jan 22 2008 Valient Gough <vgough@pobox.com>
* ensure paths end in '/'. fixes launchpad bug 184905
Wed Jan 16 2008 Valient Gough <vgough@pobox.com>
* no arg required for stdinpass, reported by Scott Hendrickson
Tue Jan 15 2008 Valient Gough <vgough@pobox.com>
* bump version to 1.4.1.1
* dump shared library version
* fix directory rename issue (launchpad bug #183358)
Sat Jan 12 2008 Valient Gough <vgough@pobox.com>
* more minor changes to password lengths. Accept up to 512 bytes for
text password
* update man docs
Fri Jan 11 2008 Valient Gough <vgough@pobox.com>
* bump version to 1.4.1
* make max-password lengths consistent. Fix newline quashing, bug
report by mpb
Tue Jan 8 2008 Valient Gough <vgough@pobox.com>
* determine symbolic link size in getAttr call
* remove old HAVE_SSL wrappers on MemoryPool
Sun Jan 6 22:26:25 PST 2008 Valient Gough <vgough@pobox.com>
* fix SSL test to keep -lssl at end of compile line,
found by Kenny Simpson

4
encfs/encfs.cpp
View File

@ -167,6 +167,8 @@ int _do_getattr(FileNode *fnode, struct stat *stbuf)
scoped_array<char> buf(new char[stbuf->st_size+1]);
res = ::readlink( fnode->cipherName(), buf.get(), stbuf->st_size );
if(res >= 0)
{
// other functions expect c-strings to be null-terminated, which
// readlink doesn't provide
buf[res] = '\0';
@ -174,6 +176,8 @@ int _do_getattr(FileNode *fnode, struct stat *stbuf)
stbuf->st_size = FSRoot->plainPath( buf.get() ).length();
res = ESUCCESS;
} else
res = -errno;
}
}

58
encfs/encfsctl.cpp
View File

@ -42,6 +42,8 @@
#include "i18n.h"
#include <boost/scoped_array.hpp>
#ifdef HAVE_SSL
#define NO_DES
#include <openssl/ssl.h>
@ -50,6 +52,7 @@
using namespace rlog;
using namespace std;
using namespace gnu;
using namespace boost;
static int showInfo( int argc, char **argv );
@ -333,7 +336,7 @@ int processContents( const shared_ptr<EncFS_Root> &rootInfo,
O_RDONLY, &errCode );
if(!node)
{
cerr << "unable to open " << path << endl;
cerr << "unable to open " << path << "\n";
return errCode;
} else
{
@ -379,6 +382,31 @@ static int cmd_cat( int argc, char **argv )
return errCode;
}
static int copyLink(const struct stat &stBuf,
const shared_ptr<EncFS_Root> &rootInfo,
const string &cpath, const string &destName )
{
scoped_array<char> buf(new char[stBuf.st_size+1]);
int res = ::readlink( cpath.c_str(), buf.get(), stBuf.st_size );
if(res == -1)
{
cerr << "unable to readlink of " << cpath << "\n";
return EXIT_FAILURE;
}
buf[res] = '\0';
string decodedLink = rootInfo->root->plainPath(buf.get());
res = ::symlink( decodedLink.c_str(), destName.c_str() );
if(res == -1)
{
cerr << "unable to create symlink for " << cpath
<< " to " << decodedLink << "\n";
}
return EXIT_SUCCESS;
}
static int copyContents(const shared_ptr<EncFS_Root> &rootInfo,
const char* encfsName, const char* targetName)
{
@ -387,7 +415,7 @@ static int copyContents(const shared_ptr<EncFS_Root> &rootInfo,
if(!node)
{
cerr << "unable to open " << encfsName << endl;
cerr << "unable to open " << encfsName << "\n";
return EXIT_FAILURE;
} else
{
@ -403,7 +431,7 @@ static int copyContents(const shared_ptr<EncFS_Root> &rootInfo,
if(readlink (d.c_str(), linkContents, PATH_MAX + 1) <= 0)
{
cerr << "unable to read link " << encfsName << endl;
cerr << "unable to read link " << encfsName << "\n";
return EXIT_FAILURE;
}
symlink(rootInfo->root->plainPath(linkContents).c_str(),
@ -461,20 +489,32 @@ static int traverseDirs(const shared_ptr<EncFS_Root> &rootInfo,
string cpath = rootInfo->root->cipherPath(plainPath.c_str());
string destName = destDir + name;
if(isDirectory(cpath.c_str()))
int r = EXIT_SUCCESS;
struct stat stBuf;
if( !lstat( cpath.c_str(), &stBuf ))
{
if( S_ISDIR( stBuf.st_mode ) )
{
traverseDirs(rootInfo, (plainPath + '/').c_str(),
destName + '/');
else
} else if( S_ISLNK( stBuf.st_mode ))
{
int r = copyContents(rootInfo, plainPath.c_str(),
r = copyLink( stBuf, rootInfo, cpath, destName );
} else
{
r = copyContents(rootInfo, plainPath.c_str(),
destName.c_str());
}
} else
{
r = EXIT_FAILURE;
}
if(r != EXIT_SUCCESS)
return r;
}
}
}
}
return EXIT_SUCCESS;
}
@ -707,7 +747,7 @@ int main(int argc, char **argv)
if(commands[offset].name == 0)
{
cerr << autosprintf(_("invalid command: \"%s\""), argv[1]) << endl;
cerr << autosprintf(_("invalid command: \"%s\""), argv[1]) << "\n";
} else
{
if((argc-2 < commands[offset].minOptions) ||
@ -715,7 +755,7 @@ int main(int argc, char **argv)
{
cerr << autosprintf(
_("Incorrect number of arguments for command \"%s\""),
argv[1]) << endl;
argv[1]) << "\n";
} else
return (*commands[offset].func)( argc-1, argv+1 );
}