Added old KDE3 version of SMB4K

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/smb4k@1097609 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 570 insertions, 0 deletions

diff --git a/utilities/smb4k_umount.cpp b/utilities/smb4k_umount.cpp
new file mode 100644
index 0000000..23eb266
--- /dev/null
+++ b/utilities/smb4k_umount.cpp
@@ -0,0 +1,570 @@
+/***************************************************************************
+    smb4k_umount  -  This is the unmount utility of Smb4K.
+                             -------------------
+    begin                : Sa Sep 25 2004
+    copyright            : (C) 2004-2007 by Alexander Reinholdt
+    email                : [email protected]
+ ***************************************************************************/
+
+/***************************************************************************
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful, but   *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
+ *   General Public License for more details.                              *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,   *
+ *   MA  02110-1301 USA                                                    *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#if !defined(__FreeBSD__) && !defined(__solaris__) && !defined(USE_SOLARIS)
+#include <sys/statfs.h>
+#elif defined(__solaris__) || defined(USE_SOLARIS)
+#include <sys/types.h>
+#include <sys/statvfs.h>
+#elif defined(__FreeBSD__)
+#include <sys/param.h>
+#include <sys/mount.h>
+#endif
+
+#ifdef __linux__
+#include <sys/utsname.h>
+#endif
+
+#include <locale.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <iostream>
+using namespace std;
+
+#define SMB4K_UMOUNT_VERSION "0.14"
+
+
+void info()
+{
+	cout << "This is smb4k_umount (version " << SMB4K_UMOUNT_VERSION << "), the unmount utility of Smb4K" << endl;
+	cout << "Copyright (C) 2004-2007, Alexander Reinholdt" << endl;
+	cout << endl;
+	cout << "Usage:" << endl;
+#ifndef __FreeBSD__
+	cout << "  smb4k_umount {mode} {options} {mountpoint}" << endl;
+#else
+	cout << "  smb4k_umount {mountpoint}" << endl;
+#endif
+	cout << "  smb4k_umount --help" << endl;
+	cout << "  smb4k_umount --version" << endl;
+	cout << endl;
+	cout << "Arguments:" << endl;
+	cout << "  {mode}" << endl;
+#ifndef __FreeBSD__
+        cout << "    --no-suid\tsmb4k_umount is run in normal user mode, so smbumount or" << endl;
+	cout << "\t\tumount.cifs is invoked." << endl;
+	cout << "    --suid\tsmb4k_umount is run in super user mode, so umount is invoked." << endl;
+	cout << "    -n\t\tThe same as the '--no-suid' argument." << endl;
+	cout << "    -s\t\tThe same as the '--suid' argument." << endl;
+	cout << endl;
+	cout << "  {options}" << endl;
+	cout << "    -t <fs>\tThe file system that should be used for unmounting. Only 'smbfs'" << endl;
+        cout << "\t\tand 'cifs' are supported. All other file systems will result in" << endl;
+	        cout << "\t\tan error. Please note, that this argument is mandatory." << endl;
+#endif
+#ifdef __linux__
+	cout << "    -l\t\tPerform a lazy unmount. See the manual page of umount for" << endl;
+	cout << "\t\tmore information. Please note, that this argument is only" << endl;
+	cout << "\t\trecognized in super user mode, i.e. if '--suid' is supplied," << endl;
+	cout << "\t\tand that you need kernel version 2.4.11 or later." << endl;
+#endif
+	cout << endl;
+	cout << "  {mountpoint}\tThe path where the share is mounted to." << endl;
+	cout << endl;
+	cout << "  --help\tDisplay this help screen and exit." << endl;
+	cout << "  --version\tDisplay the version information and exit." << endl;
+	cout << endl;
+}
+
+
+void version()
+{
+	cout << "Version " << SMB4K_UMOUNT_VERSION << endl;
+}
+
+
+bool find_program( const char *name, char *path )
+{
+	const char *paths[] = { "/bin/", "/sbin/", "/usr/bin/", "/usr/sbin/", "/usr/local/bin/", "/usr/local/sbin/" };
+	string file = "";
+
+	for ( uint i = 0; i < sizeof( paths ) / sizeof( char * ); i++ )
+	{
+		string p( paths[i] );
+		p.append( name );
+
+		if ( access( p.c_str(), X_OK ) == 0 )
+		{
+			file.assign( p );
+			break;
+		}
+	}
+
+	if ( !strcmp( file.c_str(), "" ) )
+	{
+		cerr << "smb4k_umount: Could not find " << name << " binary" << endl;
+
+		return false;
+	}
+
+	int len = strlen( file.c_str() ) + 1;
+	strncpy( path, file.c_str(), len );
+	path[len-1] = '\0';
+
+	return true;
+}
+
+
+bool check_filesystem( const char *path, const char *fs )
+{
+	bool ok = false;
+
+#if !defined(__solaris__) && !defined(USE_SOLARIS)
+	struct statfs filesystem;
+#else
+	struct statvfs filesystem;
+#endif
+
+#if !defined(__solaris__) && !defined(USE_SOLARIS) && !defined(__irix__)
+	if ( statfs( path, &filesystem ) == -1 )
+#elif defined(__irix__)
+	if ( statfs( path, &filesystem, sizeof( filesystem ), 0 ) == -1 )
+#else
+	if ( statvfs( path, &filesystem ) == -1 )
+#endif
+	{
+		int err_code = errno;
+
+		if ( err_code != EIO && err_code != EACCES )
+		{
+			// ok is still FALSE
+			cerr << "smb4k_umount: " << strerror( err_code ) << endl;
+		}
+		else
+		{
+			ok = true; // Bypass the check below, because it would yield ok == FALSE
+			           // and we want to be able to unmount broken shares as well.
+		}
+
+		return ok;
+	}
+
+#if !defined(__FreeBSD__) && !defined(__solaris__) && !defined(USE_SOLARIS) && !defined(__irix__)
+	// First entry is for CIFS, the second for SMBFS.
+	if ( (uint)filesystem.f_type == 0xFF534D42 && !strncmp( fs, "cifs", strlen( fs )+1 ) )
+	{
+		ok = true;
+	}
+	else if ( (uint)filesystem.f_type == 0x517B && !strncmp( fs, "smbfs", strlen( fs )+1 ) )
+	{
+		ok = true;
+	}
+#elif defined(__FreeBSD__)
+	if ( !strncmp( filesystem.f_fstypename, fs, strlen( fs ) ) )
+	{
+		ok = true;
+	}
+#elif defined(__solaris__) || defined(USE_SOLARIS)
+	if ( (uint)filesystem.f_basetype == 0xFF534D42 && !strncmp( fs, "cifs", strlen( fs )+1 ) )
+	{
+		ok = true;
+	}
+	else if ( (uint)filesystem.f_basetype == 0x517B && !strncmp( fs, "smbfs", strlen( fs )+1 ) )
+	{
+		ok = true;
+	}
+#elif defined(__irix__)
+	if ( (uint)filesystem.f_fstyp == 0xFF534D42 && !strncmp( fs, "cifs", strlen( fs )+1 ) )
+	{
+		ok = true;
+	}
+	else if ( (uint)filesystem.f_basetype == 0x517B && !strncmp( fs, "smbfs", strlen( fs )+1 ) )
+	{
+		ok = true;
+	}
+#endif
+	else
+	{
+		// ok is still FALSE.
+		cerr << "smb4k_umount: Wrong file system specified" << endl;
+	}
+
+	return ok;
+}
+
+
+int main( int argc, char *argv[], char *envp[] )
+{
+	// First of all, set the locale
+	(void) setlocale( LC_ALL, "" );
+
+	if ( argc < 2 )
+	{
+		info();
+		exit( EXIT_FAILURE );
+	}
+
+	int new_argc = argc + 1;
+	char *new_argv[new_argc];
+	int index = 0;
+	char path[255];
+	path[0] = '\0';
+	char *mountpoint = NULL;
+#ifndef __FreeBSD__
+	char *filesystem = NULL;
+	bool normal_user_mode = true;
+	bool have_user_mode = false;
+#ifdef __linux__
+	bool lazy_unmount = false;
+#endif
+#endif
+
+	// Get the options that were passed:
+	int c;
+
+	while ( 1 )
+	{
+		int option_index = 0;
+
+		static struct option long_options[] =
+		{
+			{ "help", 0, 0, 0 },
+			{ "version", 0, 0, 0 },
+#ifndef __FreeBSD__
+			{ "suid", 0, 0, 0 },
+			{ "no-suid", 0, 0, 0 },
+#endif
+			{ 0, 0, 0, 0 }
+		};
+#ifdef __linux__
+		c = getopt_long( argc, argv, "t:nsl", long_options, &option_index );
+#else
+#ifndef __FreeBSD__
+		c = getopt_long( argc, argv, "t:ns", long_options, &option_index );
+#else
+		c = getopt_long( argc, argv, "", long_options, &option_index );
+#endif
+#endif
+
+		if ( c == -1 )
+		{
+			break;
+		}
+
+		switch ( c )
+		{
+			case 0:
+			{
+				int len = strlen( long_options[option_index].name ) + 1;
+				char opt[len];
+				opt[0] = '\0';
+				(void) strncpy( opt, long_options[option_index].name, len );
+				opt[len-1] = '\0';
+
+				if ( !strncmp( opt, "help", len ) )
+				{
+					info();
+
+					exit( EXIT_SUCCESS );
+				}
+				else if ( !strncmp( opt, "version", len ) )
+				{
+					version();
+
+					exit( EXIT_SUCCESS );
+				}
+#ifndef __FreeBSD__
+				else if ( !strncmp( opt, "suid", len ) )
+				{
+					// Enter super user mode
+
+					normal_user_mode = false;
+					have_user_mode = true;
+
+					break;
+				}
+				else if ( !strncmp( opt, "no-suid", len ) )
+				{
+					// Enter normal user mode
+
+					normal_user_mode = true;
+					have_user_mode = true;
+
+					break;
+				}
+#endif
+				else
+				{
+					break;
+				}
+
+				break;
+			}
+#ifndef __FreeBSD__
+			case 't':
+			{
+				// Get the length of the option argument:
+				int len = strlen( optarg ) + 1;
+
+				if ( strncmp( "smbfs", optarg, len) != 0 &&
+				     strncmp( "cifs", optarg, len ) != 0 )
+				{
+					cerr << "smb4k_umount: File system " << optarg << " is not supported" << endl;
+					exit( EXIT_FAILURE );
+				}
+
+				if ( !filesystem )
+				{
+					filesystem = new char[len];
+					filesystem[0] = '\0';
+					(void) strncpy( filesystem, optarg, len );
+					filesystem[len-1] = '\0';
+				}
+
+				break;
+			}
+			case 's':
+			{
+				// Enter super user mode
+				normal_user_mode = false;
+				have_user_mode = true;
+
+				break;
+			}
+			case 'n':
+			{
+				// Enter normal user mode
+				normal_user_mode = true;
+				have_user_mode = true;
+
+				break;
+			}
+#endif
+#ifdef __linux__
+			case 'l':
+			{
+				// Initiate a lazy unmount. The umount binary
+				// will complain, if '-l' is not supported.
+				lazy_unmount = true;
+
+				break;
+			}
+#endif
+			case '?':
+			{
+				// Abort the program if an unknown option
+				// is encountered:
+				exit( EXIT_FAILURE );
+			}
+			default:
+			{
+				break;
+			}
+		};
+	}
+
+#ifndef __FreeBSD__
+        // Error out if no user mode was specified.
+	if ( !have_user_mode )
+	{
+		cerr << "smb4k_umount: No mode was specified" << endl;
+		exit( EXIT_FAILURE );
+	}
+
+        // Error out if the user did not specify any file system.
+	if ( !filesystem )
+	{
+		cerr << "smb4k_umount: No file system was specified" << endl;
+		exit( EXIT_FAILURE );
+	}
+
+	if ( normal_user_mode )
+	{
+		int len = strlen( filesystem ) + 1;
+
+		if ( !strncmp( "smbfs", filesystem, len ) )
+		{
+			if ( !find_program( "smbumount", path ) )
+			{
+				exit( EXIT_FAILURE );
+			}
+		}
+		else
+		{
+			if ( !find_program( "umount.cifs", path ) )
+			{
+				exit( EXIT_FAILURE );
+			}
+		}
+
+		len = strlen( path ) + 1;
+
+		new_argv[index] = new char[len];
+		new_argv[index][0] = '\0';
+		(void) strncpy( new_argv[index], path, len );
+		new_argv[index][len-1] = '\0';
+
+		index++;
+	}
+	else
+	{
+		if ( !find_program( "umount", path ) )
+		{
+			exit( EXIT_FAILURE );
+		}
+
+		int len = strlen( path ) + 1;
+
+		new_argv[index] = new char[len];
+		new_argv[index][0] = '\0';
+		(void) strncpy( new_argv[index], path, len );
+		new_argv[index][len-1] = '\0';
+
+		index++;
+
+		len = strlen( "-t" ) + 1;
+
+		new_argv[index] = new char[len];
+		new_argv[index][0] = '\0';
+		(void) strncpy( new_argv[index], "-t", len );
+		new_argv[index][len-1] = '\0';
+
+		index++;
+
+		len = strlen( filesystem ) + 1;
+
+		new_argv[index] = new char[len];
+		new_argv[index][0] = '\0';
+		(void) strncpy( new_argv[index], filesystem, len );
+		new_argv[index][len-1] = '\0';
+
+		index++;
+
+#ifdef __linux__
+		// Lazy unmount?
+		if ( lazy_unmount )
+		{
+			len = strlen( "-l" ) + 1;
+
+			new_argv[index] = new char[len];
+			new_argv[index][0] = '\0';
+			(void) strncpy( new_argv[index], "-l", len );
+			new_argv[index][len-1] = '\0';
+
+			index++;
+		}
+#endif
+	}
+#else
+	// We do not need to care about the user mode and
+	// we also need not to check for the file system,
+	// since there is only one.
+	if ( !find_program( "umount", path ) )
+	{
+		exit( EXIT_FAILURE );
+	}
+
+	int length = strlen( path ) + 1;
+	new_argv[index] = new char[length];
+	new_argv[index][0] = '\0';
+	(void) strncpy( new_argv[index], path, length );
+	new_argv[index][length-1] = '\0';
+
+	index++;
+#endif
+
+  // Add the mount point:
+	if ( optind < argc )
+	{
+		while ( optind < argc )
+		{
+			if ( !mountpoint )
+			{
+				if ( argv[optind][0] != '\057' )
+				{
+					cerr << "smb4k_umount: Argument " << optind << " is not a mount point" << endl;
+					exit( EXIT_FAILURE );
+				}
+#ifndef __FreeBSD__
+				if ( !check_filesystem( argv[optind], filesystem  ) )
+#else
+				if ( !check_filesystem( argv[optind], "smbfs" ) )
+#endif
+				{
+					// Error message is given by check_filesystem()
+					exit( EXIT_FAILURE );
+				}
+
+	 			int len = strlen( argv[optind] ) + 1;
+
+				mountpoint = new char[len];
+				mountpoint[0] = '\0';
+				(void) strncpy( mountpoint, argv[optind], len );
+				mountpoint[len-1] = '\0';
+
+				optind++;
+			}
+			else
+			{
+				break;
+			}
+		}
+	}
+
+	if ( !mountpoint )
+	{
+		cerr << "smb4k_umount: No mount point was specified" << endl;
+		exit( EXIT_FAILURE );
+	}
+	else
+	{
+		int len = strlen( mountpoint ) + 1;
+		new_argv[index] = new char[len];
+		new_argv[index][0] = '\0';
+		(void) strncpy( new_argv[index], mountpoint, len );
+		new_argv[index][len-1] = '\0';
+
+		index++;
+	}
+
+
+	if ( index >= new_argc )
+	{
+		cerr << "smb4k_umount: There are too many arguments" << endl;
+		exit( EXIT_FAILURE );
+	}
+
+	// Terminate new_argv:
+	new_argv[index] = NULL;
+
+	// Execute command:
+	if ( execve( new_argv[0], new_argv, envp ) == -1 )
+	{
+		int err = errno;
+		cerr << "smb4k_umount: " <<  strerror( err ) << endl;
+
+		exit( EXIT_FAILURE );
+	}
+
+	return EXIT_SUCCESS;
+}
+