src/install/acquire/diskscan.c

   1 /* $Id$
   2  * W32 disk modules finder for acquiration installation utility
   3  * Copyright (C) 2003 Jan Kratochvil <project-captive@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include <glib/gmessages.h>
  23 #include <mntent.h>
  24 #include <glib/ghash.h>
  25 #include <glib/glist.h>
  26 #include <libgnomevfs/gnome-vfs-uri.h>
  27 #include "../libcaptive-install/proc_partitions.h"
  28 #include "main.h"
  29 #include <string.h>
  30
  31
  32 /* Config: */
  33 #define FILENAME_ETC_MTAB "/etc/mtab"
  34
  35
  36 struct mod_uri_libntfs_proc_partitions_foreach_param {
  37         GHashTable *proc_partitions_ntfs_hash;
  38         GList *uri_list;        /* of (GnomeVFSURI *) */
  39         };
  40
  41 static void mod_uri_libntfs_proc_partitions_foreach(const gchar *device /* key */,const gchar *vol_name /* value */,
  42                 struct mod_uri_libntfs_proc_partitions_foreach_param *foreach_param /* user_data */)
  43 {
  44 GnomeVFSURI *uri_device,*uri_libntfs;
  45 static gboolean libntfs_warned=FALSE;
  46
  47         g_return_if_fail(device!=NULL);
  48         g_return_if_fail(vol_name!=NULL);
  49         g_return_if_fail(foreach_param!=NULL);
  50
  51         uri_libntfs=gnome_vfs_uri_new("libntfs:///");
  52         if (!uri_libntfs) {
  53                 if (!libntfs_warned) {
  54                         libntfs_warned=TRUE;
  55                         g_warning(_("'libntfs' GnomeVFS method not supported; install package 'ntfsprogs-gnomevfs' >=%s"),"1.8.0beta2");
  56                         }
  57                 return;
  58                 }
  59         g_assert(uri_libntfs->parent==NULL);
  60
  61         uri_device=gnome_vfs_uri_new("file:///");
  62         g_assert(uri_device!=NULL);
  63         uri_device=gnome_vfs_uri_append_path(uri_device,device);
  64         g_assert(uri_device->parent==NULL);
  65
  66         uri_libntfs->parent=uri_device;
  67
  68         foreach_param->uri_list=g_list_prepend(foreach_param->uri_list,uri_libntfs);
  69 }
  70
  71 static GList * /* of (GnomeVFSURI *) */ mod_uri_libntfs_proc_partitions(void)
  72 {
  73 /* map: (gchar *)device -> (gchar *)vol_name */
  74 GHashTable *proc_partitions_ntfs_hash;
  75 struct mod_uri_libntfs_proc_partitions_foreach_param foreach_param;
  76
  77         proc_partitions_ntfs_hash=proc_partitions_ntfs_hash_get(optarg_verbose);
  78
  79         foreach_param.proc_partitions_ntfs_hash=proc_partitions_ntfs_hash;
  80         foreach_param.uri_list=NULL;
  81         g_hash_table_foreach(proc_partitions_ntfs_hash,
  82                         (GHFunc)mod_uri_libntfs_proc_partitions_foreach,        /* func */
  83                         &foreach_param);        /* user_data */
  84         g_hash_table_destroy(proc_partitions_ntfs_hash);
  85
  86         return foreach_param.uri_list;
  87 }
  88
  89
  90 static GList * /* of (GnomeVFSURI *) */ mod_uri_mtab(void)
  91 {
  92 struct mntent *mntent;
  93 FILE *mntentfiler;
  94 GList *uri_list;        /* of (GnomeVFSURI *) */
  95 GnomeVFSURI *uri;
  96
  97         if (!(mntentfiler=setmntent(FILENAME_ETC_MTAB,"r"))) {
  98                 g_warning(_("Cannot open \"%s\" for reading: %m"),FILENAME_ETC_MTAB);
  99                 return NULL;
 100                 }
 101         uri_list=NULL;
 102         while ((mntent=getmntent(mntentfiler))) {
 103                 if (!strcmp(mntent->mnt_type,"proc"))   /* optimize... */
 104                         continue;
 105                 uri=gnome_vfs_uri_new("file:///");
 106                 g_assert(uri!=NULL);
 107                 uri=gnome_vfs_uri_append_path(uri,mntent->mnt_dir);
 108                 uri_list=g_list_prepend(uri_list,uri);
 109                 }
 110         if (1!=endmntent(mntentfiler))
 111                 g_warning(_("Cannot close \"%s\" after reading: %m"),FILENAME_ETC_MTAB);
 112
 113         return uri_list;
 114 }
 115
 116 static GList * /* of (GnomeVFSURI *) */ filter_non_local_uri(GList * /* of (GnomeVFSURI *) */ uri_list)
 117 {
 118 GList *uril;
 119
 120         /* Filter-out non-local URIs */
 121         for (uril=uri_list;uril;) {
 122 GnomeVFSURI *uri=uril->data;
 123 GList *uril_remove;
 124
 125                 if (!gnome_vfs_uri_is_local(uri)) {
 126                         if (optarg_verbose) {
 127 gchar *uri_string;
 128
 129                                 uri_string=gnome_vfs_uri_to_string(uri,GNOME_VFS_URI_HIDE_PASSWORD);
 130                                 g_message(_("Ignoring URI in auto-search as it is not local: %s"),uri_string);
 131                                 g_free(uri_string);
 132                                 }
 133                         uril_remove=uril;
 134                         uril=uril->next;
 135                         gnome_vfs_uri_unref(uri);
 136                         /* It is safe to be used during traversal this way: */
 137                         uri_list=g_list_remove_link(uri_list,uril_remove);
 138                         /* Prevent auto-traversal to the next list item: */
 139                         continue;
 140                         }
 141                 uril=uril->next;
 142                 }
 143         return uri_list;
 144 }
 145
 146 GList * /* of (GnomeVFSURI *) */ mod_uri_list(void)
 147 {
 148 GList *uri_list;
 149
 150         uri_list=NULL;
 151
 152         uri_list=g_list_concat(uri_list,mod_uri_mtab());
 153         uri_list=g_list_concat(uri_list,mod_uri_libntfs_proc_partitions());
 154
 155         uri_list=filter_non_local_uri(uri_list);
 156
 157         return uri_list;
 158 }