summaryrefslogtreecommitdiffstats
path: root/tdecore/kmountpoint.cpp
blob: ae698c2afe559e88c777e801b24ccc84fe9f1c5d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
/*
 *
 *  This file is part of the KDE libraries
 *  Copyright (c) 2003 Waldo Bastian <[email protected]>
 *
 * $Id$
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License version 2 as published by the Free Software Foundation.
 *
 *  This library 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
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 **/

#include <config.h>
#include <stdlib.h>

#include <tqfile.h>

#include "kstandarddirs.h"

#include "kmountpoint.h"

#ifdef HAVE_VOLMGT
#include <volmgt.h>
#endif
#ifdef HAVE_SYS_MNTTAB_H
#include <stdio.h>
#include <sys/mnttab.h>
#endif
#ifdef HAVE_MNTENT_H
#include <mntent.h>
#elif defined(HAVE_SYS_MNTENT_H)
#include <sys/mntent.h>
#endif

// This is the *BSD branch
#ifdef HAVE_SYS_MOUNT_H
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#include <sys/mount.h>
#endif

#ifdef HAVE_FSTAB_H
#include <fstab.h>
#endif
#if defined(_AIX)
#include <sys/mntctl.h>
#include <sys/vmount.h>
#include <sys/vfs.h>
/* AIX does not prototype mntctl anywhere that I can find */
#ifndef mntctl
extern "C" {
int mntctl(int command, int size, void* buffer);
}
#endif
extern "C" struct vfs_ent *getvfsbytype(int vfsType);
extern "C" void endvfsent( );
#endif


#ifndef HAVE_GETMNTINFO
# ifdef _PATH_MOUNTED
// On some Linux, MNTTAB points to /etc/fstab !
#  undef MNTTAB
#  define MNTTAB _PATH_MOUNTED
# else
#  ifndef MNTTAB
#   ifdef MTAB_FILE
#    define MNTTAB MTAB_FILE
#   else
#    define MNTTAB "/etc/mnttab"
#   endif
#  endif
# endif
#endif



#ifdef _OS_SOLARIS_
#define FSTAB "/etc/vfstab"
#else
#define FSTAB "/etc/fstab"
#endif



KMountPoint::KMountPoint()
{
}

KMountPoint::~KMountPoint()
{
}

#ifdef HAVE_SETMNTENT
#define SETMNTENT setmntent
#define ENDMNTENT endmntent
#define STRUCT_MNTENT struct mntent *
#define STRUCT_SETMNTENT FILE *
#define GETMNTENT(file, var) ((var = getmntent(file)) != 0)
#define MOUNTPOINT(var) var->mnt_dir
#define MOUNTTYPE(var) var->mnt_type
#define MOUNTOPTIONS(var) var->mnt_opts
#define FSNAME(var) var->mnt_fsname
#else
#define SETMNTENT fopen
#define ENDMNTENT fclose
#define STRUCT_MNTENT struct mnttab
#define STRUCT_SETMNTENT FILE *
#define GETMNTENT(file, var) (getmntent(file, &var) == 0)
#define MOUNTPOINT(var) var.mnt_mountp
#define MOUNTTYPE(var) var.mnt_fstype
#define MOUNTOPTIONS(var) var.mnt_mntopts
#define FSNAME(var) var.mnt_special
#endif

KMountPoint::List KMountPoint::possibleMountPoints(int infoNeeded)
{
  KMountPoint::List result;
  
#ifdef HAVE_SETMNTENT
   STRUCT_SETMNTENT fstab;
   if ((fstab = SETMNTENT(FSTAB, "r")) == 0)
      return result;

   STRUCT_MNTENT fe;
   while (GETMNTENT(fstab, fe))
   {
      KMountPoint *mp = new KMountPoint();
      mp->m_mountedFrom = TQFile::decodeName(FSNAME(fe));
         
      mp->m_mountPoint = TQFile::decodeName(MOUNTPOINT(fe));
      mp->m_mountType = TQFile::decodeName(MOUNTTYPE(fe));

      //Devices using supermount have their device names in the mount options
      //instead of the device field. That's why we need to read the mount options
      if (infoNeeded & NeedMountOptions || (mp->m_mountType == "supermount"))
      {
         TQString options = TQFile::decodeName(MOUNTOPTIONS(fe));
         mp->m_mountOptions = TQStringList::split(',', options);
      }

      if(mp->m_mountType == "supermount")
         mp->m_mountedFrom = devNameFromOptions(mp->m_mountOptions);
 
      if (infoNeeded & NeedRealDeviceName)
      {
         if (mp->m_mountedFrom.startsWith("/"))
            mp->m_device = TDEStandardDirs::realPath(mp->m_mountedFrom);
      }
      // TODO: Strip trailing '/' ?
      result.append(mp);
   }
   ENDMNTENT(fstab);
#else
   TQFile f(FSTAB);
   if ( !f.open(IO_ReadOnly) )
      return result;
     
   TQTextStream t (&f);
   TQString s;

   while (! t.eof()) 
   {
      s=t.readLine().simplifyWhiteSpace();
      if ( s.isEmpty() || (s[0] == '#'))
          continue;

      // not empty or commented out by '#'
      TQStringList item = TQStringList::split(' ', s);
        
#ifdef _OS_SOLARIS_
      if (item.count() < 5)
         continue;
#else
      if (item.count() < 4)
         continue;
#endif

      KMountPoint *mp = new KMountPoint();

      int i = 0;
      mp->m_mountedFrom = item[i++];
#ifdef _OS_SOLARIS_
      //device to fsck
      i++;
#endif
      mp->m_mountPoint = item[i++];
      mp->m_mountType = item[i++];
      TQString options = item[i++];

      if (infoNeeded & NeedMountOptions)
      {
         mp->m_mountOptions = TQStringList::split(',', options);
      }

      if (infoNeeded & NeedRealDeviceName)
      {
         if (mp->m_mountedFrom.startsWith("/"))
            mp->m_device = TDEStandardDirs::realPath(mp->m_mountedFrom);
      }
      // TODO: Strip trailing '/' ?
      result.append(mp);
   } //while

   f.close();
#endif
   return result;
}

KMountPoint::List KMountPoint::currentMountPoints(int infoNeeded)
{
  KMountPoint::List result;

#ifdef HAVE_GETMNTINFO

#ifdef GETMNTINFO_USES_STATVFS
    struct statvfs *mounted;
#else
    struct statfs *mounted;
#endif

    int num_fs = getmntinfo(&mounted, MNT_NOWAIT);

    for (int i=0;i<num_fs;i++) 
    {
      KMountPoint *mp = new KMountPoint();
      mp->m_mountedFrom = TQFile::decodeName(mounted[i].f_mntfromname);
      mp->m_mountPoint = TQFile::decodeName(mounted[i].f_mntonname);

#ifdef __osf__
      mp->m_mountType = TQFile::decodeName(mnt_names[mounted[i].f_type]);
#else
      mp->m_mountType = TQFile::decodeName(mounted[i].f_fstypename);
#endif      

      if (infoNeeded & NeedMountOptions)
      {
         struct fstab *ft = getfsfile(mounted[i].f_mntonname);
         TQString options = TQFile::decodeName(ft->fs_mntops);
         mp->m_mountOptions = TQStringList::split(',', options);
      }

      if (infoNeeded & NeedRealDeviceName)
      {
         if (mp->m_mountedFrom.startsWith("/"))
            mp->m_device = TDEStandardDirs::realPath(mp->m_mountedFrom);
      }
      // TODO: Strip trailing '/' ?
      result.append(mp);
   }

#elif defined(_AIX)

    struct vmount *mntctl_buffer;
    struct vmount *vm;
    char *mountedfrom;
    char *mountedto;
    int fsname_len, num;
    int buf_sz = 4096;

    mntctl_buffer = (struct vmount*)malloc(buf_sz);
    num = mntctl(MCTL_QUERY, buf_sz, mntctl_buffer);
    if (num == 0)
    {
	buf_sz = *(int*)mntctl_buffer;
	free(mntctl_buffer);
	mntctl_buffer = (struct vmount*)malloc(buf_sz);
	num = mntctl(MCTL_QUERY, buf_sz, mntctl_buffer);
    }

    if (num > 0)
    {
        /* iterate through items in the vmount structure: */
        vm = (struct vmount *)mntctl_buffer;
        for ( ; num > 0; num-- )
        {
            /* get the name of the mounted file systems: */
            fsname_len = vmt2datasize(vm, VMT_STUB);
            mountedto     = (char*)malloc(fsname_len + 1);
	    mountedto[fsname_len] = '\0';
            strncpy(mountedto, (char *)vmt2dataptr(vm, VMT_STUB), fsname_len);

            fsname_len = vmt2datasize(vm, VMT_OBJECT);
            mountedfrom     = (char*)malloc(fsname_len + 1);
	    mountedfrom[fsname_len] = '\0';
            strncpy(mountedfrom, (char *)vmt2dataptr(vm, VMT_OBJECT), fsname_len);

	    /* Look up the string for the file system type,
             * as listed in /etc/vfs.
             * ex.: nfs,jfs,afs,cdrfs,sfs,cachefs,nfs3,autofs
             */
            struct vfs_ent* ent = getvfsbytype(vm->vmt_gfstype);

            KMountPoint *mp = new KMountPoint();
            mp->m_mountedFrom = TQFile::decodeName(mountedfrom);
            mp->m_mountPoint = TQFile::decodeName(mountedto);
            mp->m_mountType = TQFile::decodeName(ent->vfsent_name);

            free(mountedfrom);
            free(mountedto);

            if (infoNeeded & NeedMountOptions)
            {
              // TODO
            }

            if (infoNeeded & NeedRealDeviceName)
            {
               if (mp->m_mountedFrom.startsWith("/"))
                  mp->m_device = TDEStandardDirs::realPath(mp->m_mountedFrom);
            }
            
            result.append(mp);

            /* goto the next vmount structure: */
            vm = (struct vmount *)((char *)vm + vm->vmt_length);
        }

	endvfsent( );
    }

    free( mntctl_buffer );
#elif defined(Q_WS_WIN)
    //TODO?
#else
   STRUCT_SETMNTENT mnttab;
   if ((mnttab = SETMNTENT(MNTTAB, "r")) == 0)
      return result;

   STRUCT_MNTENT fe;
   while (GETMNTENT(mnttab, fe))
   {
      KMountPoint *mp = new KMountPoint();
      mp->m_mountedFrom = TQFile::decodeName(FSNAME(fe));
         
      mp->m_mountPoint = TQFile::decodeName(MOUNTPOINT(fe));
      mp->m_mountType = TQFile::decodeName(MOUNTTYPE(fe));
      
      //Devices using supermount have their device names in the mount options
      //instead of the device field. That's why we need to read the mount options 
      if (infoNeeded & NeedMountOptions || (mp->m_mountType == "supermount"))
      {
         TQString options = TQFile::decodeName(MOUNTOPTIONS(fe));
         mp->m_mountOptions = TQStringList::split(',', options);
      }

      if (mp->m_mountType == "supermount")
         mp->m_mountedFrom = devNameFromOptions(mp->m_mountOptions);

      if (infoNeeded & NeedRealDeviceName)
      {
         if (mp->m_mountedFrom.startsWith("/"))
            mp->m_device = TDEStandardDirs::realPath(mp->m_mountedFrom);
      }
      // TODO: Strip trailing '/' ?
      result.append(mp);
   }
   ENDMNTENT(mnttab);
#endif
   return result;
}

TQString KMountPoint::devNameFromOptions(const TQStringList &options)
{
   // Search options to find the device name
   for ( TQStringList::ConstIterator it = options.begin(); it != options.end(); ++it)
   {
      if( (*it).startsWith("dev="))
         return TQString(*it).remove("dev=");
   } 
   return TQString("none");
}