src/filemanager/chown.c

   1 /* Chown command -- for the Midnight Commander
   2    Copyright (C) 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
   3    2007 Free Software Foundation, Inc.
   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; either version 2 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software
  17    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 /** \file chown.c
  21  *  \brief Source: chown command
  22  */
  23
  24 #include <config.h>
  25
  26 #include <errno.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <pwd.h>
  30 #include <grp.h>
  31 #include <sys/types.h>
  32 #include <sys/stat.h>
  33 #include <unistd.h>
  34
  35 #include "lib/global.h"
  36
  37 #include "lib/tty/tty.h"
  38 #include "lib/skin.h"
  39 #include "lib/vfs/mc-vfs/vfs.h"
  40 #include "lib/strutil.h"
  41 #include "lib/util.h"
  42 #include "lib/widget.h"
  43
  44 #include "src/setup.h"          /* panels_options */
  45
  46 /* Needed for the extern declarations of integer parameters */
  47 #include "chmod.h"
  48 #include "midnight.h"           /* current_panel */
  49 #include "layout.h"             /* repaint_screen() */
  50
  51 #include "chown.h"
  52
  53 /*** global variables ****************************************************************************/
  54
  55 /*** file scope macro definitions ****************************************************************/
  56
  57 #define UX 5
  58 #define UY 2
  59
  60 #define GX 27
  61 #define GY 2
  62
  63 #define BX 5
  64 #define BY 15
  65
  66 #define TX 50
  67 #define TY 2
  68
  69 #define BUTTONS 5
  70
  71 #define B_SETALL        B_USER
  72 #define B_SETUSR        (B_USER + 1)
  73 #define B_SETGRP        (B_USER + 2)
  74
  75 #define LABELS 5
  76
  77 #define chown_label(n,txt) label_set_text (chown_label [n].l, txt)
  78
  79 /*** file scope type declarations ****************************************************************/
  80
  81 /*** file scope variables ************************************************************************/
  82
  83 static int need_update, end_chown;
  84 static int current_file;
  85 static int single_set;
  86 static WListbox *l_user, *l_group;
  87
  88 /* *INDENT-OFF* */
  89 static struct
  90 {
  91     int ret_cmd, flags, y, x;
  92     const char *text;
  93 } chown_but[BUTTONS] = {
  94     { B_CANCEL, NORMAL_BUTTON,  0, 53, N_("&Cancel") },
  95     { B_ENTER,  DEFPUSH_BUTTON, 0, 40, N_("&Set") },
  96     { B_SETUSR, NORMAL_BUTTON,  0, 25, N_("Set &users") },
  97     { B_SETGRP, NORMAL_BUTTON,  0, 11, N_("Set &groups") },
  98     { B_SETALL, NORMAL_BUTTON,  0, 0,  N_("Set &all") },
  99 };
 100
 101 static struct {
 102     int y, x;
 103     WLabel *l;
 104 } chown_label [LABELS] = {
 105     { TY +  2, TX + 2, NULL },
 106     { TY +  4, TX + 2, NULL },
 107     { TY +  6, TX + 2, NULL },
 108     { TY +  8, TX + 2, NULL },
 109     { TY + 10, TX + 2, NULL }
 110 };
 111 /* *INDENT-ON* */
 112
 113 /*** file scope functions ************************************************************************/
 114 /* --------------------------------------------------------------------------------------------- */
 115
 116 static void
 117 chown_refresh (Dlg_head * h)
 118 {
 119     common_dialog_repaint (h);
 120
 121     tty_setcolor (COLOR_NORMAL);
 122
 123     dlg_move (h, TY + 1, TX + 2);
 124     tty_print_string (_("Name"));
 125     dlg_move (h, TY + 3, TX + 2);
 126     tty_print_string (_("Owner name"));
 127     dlg_move (h, TY + 5, TX + 2);
 128     tty_print_string (_("Group name"));
 129     dlg_move (h, TY + 7, TX + 2);
 130     tty_print_string (_("Size"));
 131     dlg_move (h, TY + 9, TX + 2);
 132     tty_print_string (_("Permission"));
 133 }
 134
 135 /* --------------------------------------------------------------------------------------------- */
 136
 137 static char *
 138 next_file (void)
 139 {
 140     while (!current_panel->dir.list[current_file].f.marked)
 141         current_file++;
 142
 143     return current_panel->dir.list[current_file].fname;
 144 }
 145
 146 /* --------------------------------------------------------------------------------------------- */
 147
 148 static cb_ret_t
 149 chown_callback (Dlg_head * h, Widget * sender, dlg_msg_t msg, int parm, void *data)
 150 {
 151     switch (msg)
 152     {
 153     case DLG_DRAW:
 154         chown_refresh (h);
 155         return MSG_HANDLED;
 156
 157     default:
 158         return default_dlg_callback (h, sender, msg, parm, data);
 159     }
 160 }
 161
 162 /* --------------------------------------------------------------------------------------------- */
 163
 164 static Dlg_head *
 165 init_chown (void)
 166 {
 167     int i;
 168     struct passwd *l_pass;
 169     struct group *l_grp;
 170     Dlg_head *ch_dlg;
 171
 172     do_refresh ();
 173     end_chown = need_update = current_file = 0;
 174     single_set = (current_panel->marked < 2) ? 3 : 0;
 175
 176     ch_dlg =
 177         create_dlg (TRUE, 0, 0, 18, 74, dialog_colors, chown_callback, "[Chown]",
 178                     _("Chown command"), DLG_CENTER | DLG_REVERSE);
 179
 180     for (i = 0; i < BUTTONS - single_set; i++)
 181         add_widget (ch_dlg,
 182                     button_new (BY + chown_but[i].y, BX + chown_but[i].x,
 183                                 chown_but[i].ret_cmd, chown_but[i].flags, _(chown_but[i].text), 0));
 184
 185     /* Add the widgets for the file information */
 186     for (i = 0; i < LABELS; i++)
 187     {
 188         chown_label[i].l = label_new (chown_label[i].y, chown_label[i].x, "");
 189         add_widget (ch_dlg, chown_label[i].l);
 190     }
 191
 192     /* get new listboxes */
 193     l_user = listbox_new (UY + 1, UX + 1, 10, 19, FALSE, NULL);
 194     l_group = listbox_new (GY + 1, GX + 1, 10, 19, FALSE, NULL);
 195
 196     /* add fields for unknown names (numbers) */
 197     listbox_add_item (l_user, LISTBOX_APPEND_AT_END, 0, _("<Unknown user>"), NULL);
 198     listbox_add_item (l_group, LISTBOX_APPEND_AT_END, 0, _("<Unknown group>"), NULL);
 199
 200     /* get and put user names in the listbox */
 201     setpwent ();
 202     while ((l_pass = getpwent ()) != NULL)
 203     {
 204         listbox_add_item (l_user, LISTBOX_APPEND_SORTED, 0, l_pass->pw_name, NULL);
 205     }
 206     endpwent ();
 207
 208     /* get and put group names in the listbox */
 209     setgrent ();
 210     while ((l_grp = getgrent ()) != NULL)
 211     {
 212         listbox_add_item (l_group, LISTBOX_APPEND_SORTED, 0, l_grp->gr_name, NULL);
 213     }
 214     endgrent ();
 215
 216     add_widget (ch_dlg, groupbox_new (TY, TX, 12, 19, _("File")));
 217
 218     /* add listboxes to the dialogs */
 219     add_widget (ch_dlg, l_group);
 220     add_widget (ch_dlg, groupbox_new (GY, GX, 12, 21, _("Group name")));
 221     add_widget (ch_dlg, l_user);
 222     add_widget (ch_dlg, groupbox_new (UY, UX, 12, 21, _("User name")));
 223
 224     return ch_dlg;
 225 }
 226
 227 /* --------------------------------------------------------------------------------------------- */
 228
 229 static void
 230 chown_done (void)
 231 {
 232     if (need_update)
 233         update_panels (UP_OPTIMIZE, UP_KEEPSEL);
 234     repaint_screen ();
 235 }
 236
 237 /* --------------------------------------------------------------------------------------------- */
 238
 239 static void
 240 do_chown (uid_t u, gid_t g)
 241 {
 242     if (mc_chown (current_panel->dir.list[current_file].fname, u, g) == -1)
 243         message (D_ERROR, MSG_ERROR, _("Cannot chown \"%s\"\n%s"),
 244                  current_panel->dir.list[current_file].fname, unix_error_string (errno));
 245
 246     do_file_mark (current_panel, current_file, 0);
 247 }
 248
 249 /* --------------------------------------------------------------------------------------------- */
 250
 251 static void
 252 apply_chowns (uid_t u, gid_t g)
 253 {
 254     char *fname;
 255
 256     need_update = end_chown = 1;
 257     do_chown (u, g);
 258
 259     do
 260     {
 261         fname = next_file ();
 262
 263         do_chown (u, g);
 264     }
 265     while (current_panel->marked);
 266 }
 267
 268 /* --------------------------------------------------------------------------------------------- */
 269 /*** public functions ****************************************************************************/
 270 /* --------------------------------------------------------------------------------------------- */
 271
 272 void
 273 chown_cmd (void)
 274 {
 275     char *fname;
 276     struct stat sf_stat;
 277     Dlg_head *ch_dlg;
 278     uid_t new_user;
 279     gid_t new_group;
 280     char buffer[BUF_TINY];
 281
 282     do
 283     {                           /* do while any files remaining */
 284         ch_dlg = init_chown ();
 285         new_user = new_group = -1;
 286
 287         if (current_panel->marked)
 288             fname = next_file ();       /* next marked file */
 289         else
 290             fname = selection (current_panel)->fname;   /* single file */
 291
 292         if (mc_stat (fname, &sf_stat) != 0)
 293         {                       /* get status of file */
 294             destroy_dlg (ch_dlg);
 295             break;
 296         }
 297
 298         /* select in listboxes */
 299         listbox_select_entry (l_user, listbox_search_text (l_user, get_owner (sf_stat.st_uid)));
 300         listbox_select_entry (l_group, listbox_search_text (l_group, get_group (sf_stat.st_gid)));
 301
 302         chown_label (0, str_trunc (fname, 15));
 303         chown_label (1, str_trunc (get_owner (sf_stat.st_uid), 15));
 304         chown_label (2, str_trunc (get_group (sf_stat.st_gid), 15));
 305         size_trunc_len (buffer, 15, sf_stat.st_size, 0, panels_options.kilobyte_si);
 306         chown_label (3, buffer);
 307         chown_label (4, string_perm (sf_stat.st_mode));
 308
 309         switch (run_dlg (ch_dlg))
 310         {
 311         case B_CANCEL:
 312             end_chown = 1;
 313             break;
 314
 315         case B_SETUSR:
 316             {
 317                 struct passwd *user;
 318                 char *text;
 319
 320                 listbox_get_current (l_user, &text, NULL);
 321                 user = getpwnam (text);
 322                 if (user)
 323                 {
 324                     new_user = user->pw_uid;
 325                     apply_chowns (new_user, new_group);
 326                 }
 327                 break;
 328             }
 329
 330         case B_SETGRP:
 331             {
 332                 struct group *grp;
 333                 char *text;
 334
 335                 listbox_get_current (l_group, &text, NULL);
 336                 grp = getgrnam (text);
 337                 if (grp)
 338                 {
 339                     new_group = grp->gr_gid;
 340                     apply_chowns (new_user, new_group);
 341                 }
 342                 break;
 343             }
 344
 345         case B_SETALL:
 346         case B_ENTER:
 347             {
 348                 struct group *grp;
 349                 struct passwd *user;
 350                 char *text;
 351
 352                 listbox_get_current (l_group, &text, NULL);
 353                 grp = getgrnam (text);
 354                 if (grp)
 355                     new_group = grp->gr_gid;
 356                 listbox_get_current (l_user, &text, NULL);
 357                 user = getpwnam (text);
 358                 if (user)
 359                     new_user = user->pw_uid;
 360                 if (ch_dlg->ret_value == B_ENTER)
 361                 {
 362                     need_update = 1;
 363                     if (mc_chown (fname, new_user, new_group) == -1)
 364                         message (D_ERROR, MSG_ERROR, _("Cannot chown \"%s\"\n%s"),
 365                                  fname, unix_error_string (errno));
 366                 }
 367                 else
 368                     apply_chowns (new_user, new_group);
 369                 break;
 370             }
 371         }                       /* switch */
 372
 373         if (current_panel->marked && ch_dlg->ret_value != B_CANCEL)
 374         {
 375             do_file_mark (current_panel, current_file, 0);
 376             need_update = 1;
 377         }
 378
 379         destroy_dlg (ch_dlg);
 380     }
 381     while (current_panel->marked && !end_chown);
 382
 383     chown_done ();
 384 }
 385
 386 /* --------------------------------------------------------------------------------------------- */