src/filemanager/achown.c

   1 /*
   2    Chown-advanced command -- for the Midnight Commander
   3
   4    Copyright (C) 1994-2017
   5    Free Software Foundation, Inc.
   6
   7    This file is part of the Midnight Commander.
   8
   9    The Midnight Commander is free software: you can redistribute it
  10    and/or modify it under the terms of the GNU General Public License as
  11    published by the Free Software Foundation, either version 3 of the License,
  12    or (at your option) any later version.
  13
  14    The Midnight Commander is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 /** \file achown.c
  24  *  \brief Source: Contains functions for advanced chowning
  25  */
  26
  27 #include <config.h>
  28
  29 #include <errno.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <pwd.h>
  33 #include <grp.h>
  34 #include <sys/types.h>
  35 #include <sys/stat.h>
  36 #include <unistd.h>
  37
  38 #include "lib/global.h"
  39
  40 #include "lib/tty/tty.h"
  41 #include "lib/tty/key.h"        /* XCTRL and ALT macros */
  42 #include "lib/skin.h"
  43 #include "lib/vfs/vfs.h"
  44 #include "lib/strutil.h"
  45 #include "lib/util.h"
  46 #include "lib/widget.h"
  47
  48 #include "midnight.h"           /* current_panel */
  49
  50 #include "achown.h"
  51
  52 /*** global variables ****************************************************************************/
  53
  54 /*** file scope macro definitions ****************************************************************/
  55
  56 #define BX 5
  57 #define BY 5
  58
  59 #define BUTTONS      9
  60 #define BUTTONS_PERM 5
  61
  62 #define B_SETALL B_USER
  63 #define B_SKIP   (B_USER + 1)
  64
  65 /*** file scope type declarations ****************************************************************/
  66
  67 /*** file scope variables ************************************************************************/
  68
  69 static struct
  70 {
  71     unsigned long id;
  72     int ret_cmd;
  73     button_flags_t flags;
  74     int x;
  75     int len;
  76     const char *text;
  77 } advanced_chown_but[BUTTONS] =
  78 {
  79     /* *INDENT-OFF* */
  80     { 0, B_ENTER,   NARROW_BUTTON,  3, 0, "   " },
  81     { 0, B_ENTER,   NARROW_BUTTON, 11, 0, "   " },
  82     { 0, B_ENTER,   NARROW_BUTTON, 19, 0, "   " },
  83     { 0, B_ENTER,   NARROW_BUTTON, 29, 0, ""    },
  84     { 0, B_ENTER,   NARROW_BUTTON, 47, 0, ""    },
  85
  86     { 0, B_SETALL,  NORMAL_BUTTON,  0, 0, N_("Set &all") },
  87     { 0, B_SKIP,    NORMAL_BUTTON,  0, 0, N_("S&kip")    },
  88     { 0, B_ENTER,  DEFPUSH_BUTTON,  0, 0, N_("&Set")     },
  89     { 0, B_CANCEL,  NORMAL_BUTTON,  0, 0, N_("&Cancel")  }
  90     /* *INDENT-ON* */
  91 };
  92
  93 static int current_file;
  94 static gboolean ignore_all;
  95
  96 static WButton *b_att[3];       /* permission */
  97 static WButton *b_user, *b_group;       /* owner */
  98 static WLabel *l_filename;
  99 static WLabel *l_mode;
 100
 101 static int flag_pos;
 102 static int x_toggle;
 103 static char ch_flags[11];
 104 static const char ch_perm[] = "rwx";
 105 static mode_t ch_cmode;
 106 static struct stat sf_stat;
 107
 108 /* --------------------------------------------------------------------------------------------- */
 109 /*** file scope functions ************************************************************************/
 110 /* --------------------------------------------------------------------------------------------- */
 111
 112 static void
 113 advanced_chown_i18n (void)
 114 {
 115     static gboolean i18n = FALSE;
 116     int i;
 117
 118     if (i18n)
 119         return;
 120
 121     i18n = TRUE;
 122
 123     for (i = BUTTONS_PERM; i < BUTTONS; i++)
 124     {
 125 #ifdef ENABLE_NLS
 126         advanced_chown_but[i].text = _(advanced_chown_but[i].text);
 127 #endif /* ENABLE_NLS */
 128
 129         advanced_chown_but[i].len = str_term_width1 (advanced_chown_but[i].text) + 3;
 130         if (advanced_chown_but[i].flags == DEFPUSH_BUTTON)
 131             advanced_chown_but[i].len += 2;     /* "<>" */
 132     }
 133
 134 }
 135
 136 /* --------------------------------------------------------------------------------------------- */
 137
 138 static cb_ret_t
 139 inc_flag_pos (void)
 140 {
 141     if (flag_pos == 10)
 142     {
 143         flag_pos = 0;
 144         return MSG_NOT_HANDLED;
 145     }
 146
 147     flag_pos++;
 148
 149     return flag_pos % 3 == 0 ? MSG_NOT_HANDLED : MSG_HANDLED;
 150 }
 151
 152 /* --------------------------------------------------------------------------------------------- */
 153
 154 static cb_ret_t
 155 dec_flag_pos (void)
 156 {
 157     if (flag_pos == 0)
 158     {
 159         flag_pos = 10;
 160         return MSG_NOT_HANDLED;
 161     }
 162
 163     flag_pos--;
 164
 165     return (flag_pos + 1) % 3 == 0 ? MSG_NOT_HANDLED : MSG_HANDLED;
 166 }
 167
 168 /* --------------------------------------------------------------------------------------------- */
 169
 170 static void
 171 set_perm_by_flags (char *s, int f_p)
 172 {
 173     int i;
 174
 175     for (i = 0; i < 3; i++)
 176     {
 177         if (ch_flags[f_p + i] == '+')
 178             s[i] = ch_perm[i];
 179         else if (ch_flags[f_p + i] == '-')
 180             s[i] = '-';
 181         else
 182             s[i] = (ch_cmode & (1 << (8 - f_p - i))) != 0 ? ch_perm[i] : '-';
 183     }
 184 }
 185
 186 /* --------------------------------------------------------------------------------------------- */
 187
 188 static mode_t
 189 get_perm (char *s, int base)
 190 {
 191     mode_t m = 0;
 192
 193     m |= (s[0] == '-') ? 0 :
 194         ((s[0] == '+') ? (mode_t) (1 << (base + 2)) : (1 << (base + 2)) & ch_cmode);
 195
 196     m |= (s[1] == '-') ? 0 :
 197         ((s[1] == '+') ? (mode_t) (1 << (base + 1)) : (1 << (base + 1)) & ch_cmode);
 198
 199     m |= (s[2] == '-') ? 0 : ((s[2] == '+') ? (mode_t) (1 << base) : (1 << base) & ch_cmode);
 200
 201     return m;
 202 }
 203
 204 /* --------------------------------------------------------------------------------------------- */
 205
 206 static mode_t
 207 get_mode (void)
 208 {
 209     mode_t m;
 210
 211     m = ch_cmode ^ (ch_cmode & 0777);
 212     m |= get_perm (ch_flags, 6);
 213     m |= get_perm (ch_flags + 3, 3);
 214     m |= get_perm (ch_flags + 6, 0);
 215
 216     return m;
 217 }
 218
 219 /* --------------------------------------------------------------------------------------------- */
 220
 221 static void
 222 update_permissions (void)
 223 {
 224     set_perm_by_flags (b_att[0]->text.start, 0);
 225     set_perm_by_flags (b_att[1]->text.start, 3);
 226     set_perm_by_flags (b_att[2]->text.start, 6);
 227 }
 228
 229 /* --------------------------------------------------------------------------------------------- */
 230
 231 static void
 232 update_ownership (void)
 233 {
 234     button_set_text (b_user, get_owner (sf_stat.st_uid));
 235     button_set_text (b_group, get_group (sf_stat.st_gid));
 236 }
 237
 238 /* --------------------------------------------------------------------------------------------- */
 239
 240 static void
 241 print_flags (const WDialog * h)
 242 {
 243     int i;
 244
 245     tty_setcolor (COLOR_NORMAL);
 246
 247     for (i = 0; i < 3; i++)
 248     {
 249         widget_move (h, BY + 1, advanced_chown_but[0].x + 6 + i);
 250         tty_print_char (ch_flags[i]);
 251     }
 252
 253     for (i = 0; i < 3; i++)
 254     {
 255         widget_move (h, BY + 1, advanced_chown_but[1].x + 6 + i);
 256         tty_print_char (ch_flags[i + 3]);
 257     }
 258
 259     for (i = 0; i < 3; i++)
 260     {
 261         widget_move (h, BY + 1, advanced_chown_but[2].x + 6 + i);
 262         tty_print_char (ch_flags[i + 6]);
 263     }
 264
 265     update_permissions ();
 266
 267     for (i = 0; i < 15; i++)
 268     {
 269         widget_move (h, BY + 1, advanced_chown_but[3].x + 6 + i);
 270         tty_print_char (ch_flags[9]);
 271     }
 272     for (i = 0; i < 15; i++)
 273     {
 274         widget_move (h, BY + 1, advanced_chown_but[4].x + 6 + i);
 275         tty_print_char (ch_flags[10]);
 276     }
 277 }
 278
 279 /* --------------------------------------------------------------------------------------------- */
 280
 281 static void
 282 advanced_chown_refresh (WDialog * h)
 283 {
 284     dlg_default_repaint (h);
 285
 286     tty_setcolor (COLOR_NORMAL);
 287
 288     widget_move (h, BY - 1, advanced_chown_but[0].x + 5);
 289     tty_print_string (_("owner"));
 290     widget_move (h, BY - 1, advanced_chown_but[1].x + 5);
 291     tty_print_string (_("group"));
 292     widget_move (h, BY - 1, advanced_chown_but[2].x + 5);
 293     tty_print_string (_("other"));
 294
 295     widget_move (h, BY - 1, advanced_chown_but[3].x + 5);
 296     tty_print_string (_("owner"));
 297     widget_move (h, BY - 1, advanced_chown_but[4].x + 5);
 298     tty_print_string (_("group"));
 299
 300     widget_move (h, BY + 1, 3);
 301     tty_print_string (_("Flag"));
 302     print_flags (h);
 303 }
 304
 305 /* --------------------------------------------------------------------------------------------- */
 306
 307 static void
 308 advanced_chown_info_update (void)
 309 {
 310     char buffer[BUF_SMALL];
 311
 312     /* mode */
 313     g_snprintf (buffer, sizeof (buffer), "Permissions (octal): %o", get_mode ());
 314     label_set_text (l_mode, buffer);
 315
 316     /* permissions */
 317     update_permissions ();
 318 }
 319
 320 /* --------------------------------------------------------------------------------------------- */
 321
 322 static void
 323 update_mode (WDialog * h)
 324 {
 325     print_flags (h);
 326     advanced_chown_info_update ();
 327     widget_set_state (WIDGET (h->current->data), WST_FOCUSED, TRUE);
 328 }
 329
 330 /* --------------------------------------------------------------------------------------------- */
 331
 332 static cb_ret_t
 333 perm_button_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
 334 {
 335     WButton *b = BUTTON (w);
 336     int i = 0;
 337     int f_pos;
 338
 339     /* one of permission buttons */
 340     if (b == b_att[0])
 341         f_pos = 0;
 342     else if (b == b_att[1])
 343         f_pos = 1;
 344     else                        /* if (w == b_att [1] */
 345         f_pos = 2;
 346
 347     switch (msg)
 348     {
 349     case MSG_FOCUS:
 350         if (b->hotpos == -1)
 351             b->hotpos = 0;
 352
 353         flag_pos = f_pos * 3 + b->hotpos;
 354         return MSG_HANDLED;
 355
 356     case MSG_KEY:
 357         switch (parm)
 358         {
 359         case '*':
 360             parm = '=';
 361             /* fallthrough */
 362
 363         case '-':
 364         case '=':
 365         case '+':
 366             flag_pos = f_pos * 3 + b->hotpos;
 367             ch_flags[flag_pos] = parm;
 368             update_mode (w->owner);
 369             send_message (w, NULL, MSG_KEY, KEY_RIGHT, NULL);
 370             if (b->hotpos == 2)
 371                 dlg_select_next_widget (w->owner);
 372             break;
 373
 374         case XCTRL ('f'):
 375         case KEY_RIGHT:
 376             {
 377                 cb_ret_t ret;
 378
 379                 ret = inc_flag_pos ();
 380                 b->hotpos = flag_pos % 3;
 381                 return ret;
 382             }
 383
 384         case XCTRL ('b'):
 385         case KEY_LEFT:
 386             {
 387                 cb_ret_t ret;
 388
 389                 ret = dec_flag_pos ();
 390                 b->hotpos = flag_pos % 3;
 391                 return ret;
 392             }
 393
 394         case 'x':
 395             i++;
 396             /* fallthrough */
 397
 398         case 'w':
 399             i++;
 400             /* fallthrough */
 401
 402         case 'r':
 403             b->hotpos = i;
 404             flag_pos = f_pos * 3 + i;
 405             if (b->text.start[flag_pos % 3] == '-')
 406                 ch_flags[flag_pos] = '+';
 407             else
 408                 ch_flags[flag_pos] = '-';
 409             update_mode (w->owner);
 410             break;
 411
 412         case '4':
 413             i++;
 414             /* fallthrough */
 415
 416         case '2':
 417             i++;
 418             /* fallthrough */
 419
 420         case '1':
 421             b->hotpos = i;
 422             flag_pos = f_pos * 3 + i;
 423             ch_flags[flag_pos] = '=';
 424             update_mode (w->owner);
 425             break;
 426
 427         default:
 428             break;
 429         }
 430         /* continue key handling in the dialog level */
 431         return MSG_NOT_HANDLED;
 432
 433     default:
 434         return button_default_callback (w, sender, msg, parm, data);
 435     }
 436 }
 437
 438 /* --------------------------------------------------------------------------------------------- */
 439
 440 static void
 441 perm_button_mouse_callback (Widget * w, mouse_msg_t msg, mouse_event_t * event)
 442 {
 443     button_mouse_default_callback (w, msg, event);
 444 }
 445
 446 /* --------------------------------------------------------------------------------------------- */
 447
 448 static WButton *
 449 perm_button_new (int y, int x, int action, button_flags_t flags, const char *text,
 450                  bcback_fn callback)
 451 {
 452     WButton *b;
 453     Widget *w;
 454
 455     /* create base button using native API */
 456     b = button_new (y, x, action, flags, text, callback);
 457     w = WIDGET (b);
 458
 459     /* we don't want HOTKEY */
 460     widget_want_hotkey (w, FALSE);
 461
 462     w->callback = perm_button_callback;
 463     w->mouse_callback = perm_button_mouse_callback;
 464
 465     return b;
 466 }
 467
 468 /* --------------------------------------------------------------------------------------------- */
 469
 470 static cb_ret_t
 471 chl_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
 472 {
 473     switch (msg)
 474     {
 475     case MSG_KEY:
 476         switch (parm)
 477         {
 478         case KEY_LEFT:
 479         case KEY_RIGHT:
 480             {
 481                 WDialog *h = DIALOG (w);
 482
 483                 h->ret_value = parm;
 484                 dlg_stop (h);
 485             }
 486         default:
 487             break;
 488         }
 489
 490     default:
 491         return dlg_default_callback (w, sender, msg, parm, data);
 492     }
 493 }
 494
 495 /* --------------------------------------------------------------------------------------------- */
 496
 497 static int
 498 user_group_button_cb (WButton * button, int action)
 499 {
 500     Widget *w = WIDGET (button);
 501     int f_pos;
 502     gboolean chl_end;
 503
 504     (void) action;
 505
 506     if (button == b_user)
 507         f_pos = BUTTONS_PERM - 2;
 508     else if (button == b_group)
 509         f_pos = BUTTONS_PERM - 1;
 510     else
 511         return 0;               /* do nothing */
 512
 513     do
 514     {
 515         WDialog *h = w->owner;
 516         Widget *wh = WIDGET (h);
 517
 518         gboolean is_owner = (f_pos == BUTTONS_PERM - 2);
 519         const char *title;
 520         int lxx, b_pos;
 521         WDialog *chl_dlg;
 522         WListbox *chl_list;
 523         int result;
 524         int fe;
 525         struct passwd *chl_pass;
 526         struct group *chl_grp;
 527
 528         chl_end = FALSE;
 529
 530         if (is_owner)
 531         {
 532             title = _("owner");
 533             lxx = WIDGET (b_user)->x + 1;
 534         }
 535         else
 536         {
 537             title = _("group");
 538             lxx = WIDGET (b_group)->x + 1;
 539         }
 540
 541         chl_dlg =
 542             dlg_create (TRUE, wh->y - 1, lxx, wh->lines + 2, 17, WPOS_KEEP_DEFAULT, TRUE,
 543                         dialog_colors, chl_callback, NULL, "[Advanced Chown]", title);
 544
 545         /* get new listboxes */
 546         chl_list =
 547             listbox_new (1, 1, WIDGET (chl_dlg)->lines - 2, WIDGET (chl_dlg)->cols - 2, FALSE,
 548                          NULL);
 549         listbox_add_item (chl_list, LISTBOX_APPEND_AT_END, 0, "<Unknown>", NULL, FALSE);
 550         if (is_owner)
 551         {
 552             /* get and put user names in the listbox */
 553             setpwent ();
 554             while ((chl_pass = getpwent ()) != NULL)
 555                 listbox_add_item (chl_list, LISTBOX_APPEND_SORTED, 0, chl_pass->pw_name, NULL,
 556                                   FALSE);
 557             endpwent ();
 558             fe = listbox_search_text (chl_list, get_owner (sf_stat.st_uid));
 559         }
 560         else
 561         {
 562             /* get and put group names in the listbox */
 563             setgrent ();
 564             while ((chl_grp = getgrent ()) != NULL)
 565                 listbox_add_item (chl_list, LISTBOX_APPEND_SORTED, 0, chl_grp->gr_name, NULL,
 566                                   FALSE);
 567             endgrent ();
 568             fe = listbox_search_text (chl_list, get_group (sf_stat.st_gid));
 569         }
 570
 571         listbox_select_entry (chl_list, fe);
 572
 573         b_pos = chl_list->pos;
 574         add_widget (chl_dlg, chl_list);
 575
 576         result = dlg_run (chl_dlg);
 577
 578         if (result != B_CANCEL)
 579         {
 580             if (b_pos != chl_list->pos)
 581             {
 582                 gboolean ok = FALSE;
 583                 char *text;
 584
 585                 listbox_get_current (chl_list, &text, NULL);
 586                 if (is_owner)
 587                 {
 588                     chl_pass = getpwnam (text);
 589                     if (chl_pass != NULL)
 590                     {
 591                         sf_stat.st_uid = chl_pass->pw_uid;
 592                         ok = TRUE;
 593                     }
 594                 }
 595                 else
 596                 {
 597                     chl_grp = getgrnam (text);
 598                     if (chl_grp != NULL)
 599                     {
 600                         sf_stat.st_gid = chl_grp->gr_gid;
 601                         ok = TRUE;
 602                     }
 603                 }
 604
 605                 if (!ok)
 606                     dlg_select_current_widget (h);
 607                 else
 608                 {
 609                     ch_flags[f_pos + 6] = '+';
 610                     update_ownership ();
 611                     dlg_select_current_widget (h);
 612                     print_flags (h);
 613                 }
 614             }
 615
 616             if (result == KEY_LEFT)
 617             {
 618                 if (!is_owner)
 619                     chl_end = TRUE;
 620                 dlg_select_prev_widget (h);
 621                 f_pos--;
 622             }
 623             else if (result == KEY_RIGHT)
 624             {
 625                 if (is_owner)
 626                     chl_end = TRUE;
 627                 dlg_select_next_widget (h);
 628                 f_pos++;
 629             }
 630         }
 631
 632         /* Here we used to redraw the window */
 633         dlg_destroy (chl_dlg);
 634     }
 635     while (chl_end);
 636
 637     return 0;
 638 }
 639
 640 /* --------------------------------------------------------------------------------------------- */
 641
 642 static cb_ret_t
 643 advanced_chown_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
 644 {
 645     WDialog *h = DIALOG (w);
 646     int i = 0;
 647
 648     switch (msg)
 649     {
 650     case MSG_DRAW:
 651         advanced_chown_refresh (h);
 652         advanced_chown_info_update ();
 653         return MSG_HANDLED;
 654
 655     case MSG_KEY:
 656         switch (parm)
 657         {
 658         case ALT ('x'):
 659             i++;
 660             /* fallthrough */
 661
 662         case ALT ('w'):
 663             i++;
 664             /* fallthrough */
 665
 666         case ALT ('r'):
 667             parm = i + 3;
 668             for (i = 0; i < 3; i++)
 669                 ch_flags[i * 3 + parm - 3] = (x_toggle & (1 << parm)) ? '-' : '+';
 670             x_toggle ^= (1 << parm);
 671             update_mode (h);
 672             dlg_broadcast_msg (h, MSG_DRAW);
 673             break;
 674
 675         case XCTRL ('x'):
 676             i++;
 677             /* fallthrough */
 678
 679         case XCTRL ('w'):
 680             i++;
 681             /* fallthrough */
 682
 683         case XCTRL ('r'):
 684             parm = i;
 685             for (i = 0; i < 3; i++)
 686                 ch_flags[i * 3 + parm] = (x_toggle & (1 << parm)) ? '-' : '+';
 687             x_toggle ^= (1 << parm);
 688             update_mode (h);
 689             dlg_broadcast_msg (h, MSG_DRAW);
 690             break;
 691
 692         default:
 693             break;
 694         }
 695         return MSG_NOT_HANDLED;
 696
 697     default:
 698         return dlg_default_callback (w, sender, msg, parm, data);
 699     }
 700 }
 701
 702 /* --------------------------------------------------------------------------------------------- */
 703
 704 static WDialog *
 705 advanced_chown_init (void)
 706 {
 707     gboolean single_set;
 708     WDialog *ch_dlg;
 709     int lines = 12;
 710     int cols = 74;
 711     int i;
 712     int y;
 713
 714     memset (ch_flags, '=', 11);
 715     flag_pos = 0;
 716     x_toggle = 070;
 717
 718     single_set = (current_panel->marked < 2);
 719     if (!single_set)
 720         lines += 2;
 721
 722     ch_dlg =
 723         dlg_create (TRUE, 0, 0, lines, cols, WPOS_CENTER, FALSE, dialog_colors,
 724                     advanced_chown_callback, NULL, "[Advanced Chown]", _("Chown advanced command"));
 725
 726
 727     l_filename = label_new (2, 3, "");
 728     add_widget (ch_dlg, l_filename);
 729
 730     add_widget (ch_dlg, hline_new (3, -1, -1));
 731
 732 #define XTRACT(i,y,cb) y, BX+advanced_chown_but[i].x, \
 733         advanced_chown_but[i].ret_cmd, advanced_chown_but[i].flags, \
 734         (advanced_chown_but[i].text), cb
 735     b_att[0] = perm_button_new (XTRACT (0, BY, NULL));
 736     advanced_chown_but[0].id = add_widget (ch_dlg, b_att[0]);
 737     b_att[1] = perm_button_new (XTRACT (1, BY, NULL));
 738     advanced_chown_but[1].id = add_widget (ch_dlg, b_att[1]);
 739     b_att[2] = perm_button_new (XTRACT (2, BY, NULL));
 740     advanced_chown_but[2].id = add_widget (ch_dlg, b_att[2]);
 741     b_user = button_new (XTRACT (3, BY, user_group_button_cb));
 742     advanced_chown_but[3].id = add_widget (ch_dlg, b_user);
 743     b_group = button_new (XTRACT (4, BY, user_group_button_cb));
 744     advanced_chown_but[4].id = add_widget (ch_dlg, b_group);
 745 #undef XTRACT
 746
 747     l_mode = label_new (BY + 2, 3, "");
 748     add_widget (ch_dlg, l_mode);
 749
 750     y = BY + 3;
 751     if (!single_set)
 752     {
 753         i = BUTTONS_PERM;
 754         add_widget (ch_dlg, hline_new (y++, -1, -1));
 755         advanced_chown_but[i].id = add_widget (ch_dlg,
 756                                                button_new (y,
 757                                                            WIDGET (ch_dlg)->cols / 2 -
 758                                                            advanced_chown_but[i].len,
 759                                                            advanced_chown_but[i].ret_cmd,
 760                                                            advanced_chown_but[i].flags,
 761                                                            advanced_chown_but[i].text, NULL));
 762         i++;
 763         advanced_chown_but[i].id = add_widget (ch_dlg,
 764                                                button_new (y, WIDGET (ch_dlg)->cols / 2 + 1,
 765                                                            advanced_chown_but[i].ret_cmd,
 766                                                            advanced_chown_but[i].flags,
 767                                                            advanced_chown_but[i].text, NULL));
 768         y++;
 769     }
 770
 771     i = BUTTONS_PERM + 2;
 772     add_widget (ch_dlg, hline_new (y++, -1, -1));
 773     advanced_chown_but[i].id = add_widget (ch_dlg,
 774                                            button_new (y,
 775                                                        WIDGET (ch_dlg)->cols / 2 -
 776                                                        advanced_chown_but[i].len,
 777                                                        advanced_chown_but[i].ret_cmd,
 778                                                        advanced_chown_but[i].flags,
 779                                                        advanced_chown_but[i].text, NULL));
 780     i++;
 781     advanced_chown_but[i].id = add_widget (ch_dlg,
 782                                            button_new (y, WIDGET (ch_dlg)->cols / 2 + 1,
 783                                                        advanced_chown_but[i].ret_cmd,
 784                                                        advanced_chown_but[i].flags,
 785                                                        advanced_chown_but[i].text, NULL));
 786
 787     widget_select (WIDGET (b_att[0]));
 788
 789     return ch_dlg;
 790 }
 791
 792 /* --------------------------------------------------------------------------------------------- */
 793
 794 static void
 795 advanced_chown_done (gboolean need_update)
 796 {
 797     if (need_update)
 798         update_panels (UP_OPTIMIZE, UP_KEEPSEL);
 799     repaint_screen ();
 800 }
 801
 802 /* --------------------------------------------------------------------------------------------- */
 803
 804 static const char *
 805 next_file (void)
 806 {
 807     while (!current_panel->dir.list[current_file].f.marked)
 808         current_file++;
 809
 810     return current_panel->dir.list[current_file].fname;
 811 }
 812
 813 /* --------------------------------------------------------------------------------------------- */
 814
 815 static gboolean
 816 try_advanced_chown (const vfs_path_t * p, mode_t m, uid_t u, gid_t g)
 817 {
 818     int chmod_result;
 819     const char *fname;
 820
 821     fname = x_basename (vfs_path_as_str (p));
 822
 823     while ((chmod_result = mc_chmod (p, m)) == -1 && !ignore_all)
 824     {
 825         int my_errno = errno;
 826         int result;
 827         char *msg;
 828
 829         msg = g_strdup_printf (_("Cannot chmod \"%s\"\n%s"), fname, unix_error_string (my_errno));
 830         result =
 831             query_dialog (MSG_ERROR, msg, D_ERROR, 4, _("&Ignore"), _("Ignore &all"), _("&Retry"),
 832                           _("&Cancel"));
 833         g_free (msg);
 834
 835         switch (result)
 836         {
 837         case 0:
 838             /* call mc_chown() only, if mc_chmod() didn't fail */
 839             return TRUE;
 840
 841         case 1:
 842             ignore_all = TRUE;
 843             /* call mc_chown() only, if mc_chmod() didn't fail */
 844             return TRUE;
 845
 846         case 2:
 847             /* retry chmod of this file */
 848             break;
 849
 850         case 3:
 851         default:
 852             /* stop remain files processing */
 853             return FALSE;
 854         }
 855     }
 856
 857     /* call mc_chown() only, if mc_chmod didn't fail */
 858     while (chmod_result != -1 && mc_chown (p, u, g) == -1 && !ignore_all)
 859     {
 860         int my_errno = errno;
 861         int result;
 862         char *msg;
 863
 864         msg = g_strdup_printf (_("Cannot chown \"%s\"\n%s"), fname, unix_error_string (my_errno));
 865         result =
 866             query_dialog (MSG_ERROR, msg, D_ERROR, 4, _("&Ignore"), _("Ignore &all"), _("&Retry"),
 867                           _("&Cancel"));
 868         g_free (msg);
 869
 870         switch (result)
 871         {
 872         case 0:
 873             /* try next file */
 874             return TRUE;
 875
 876         case 1:
 877             ignore_all = TRUE;
 878             /* try next file */
 879             return TRUE;
 880
 881         case 2:
 882             /* retry chown of this file */
 883             break;
 884
 885         case 3:
 886         default:
 887             /* stop remain files processing */
 888             return FALSE;
 889         }
 890     }
 891
 892     return TRUE;
 893
 894 }
 895
 896 /* --------------------------------------------------------------------------------------------- */
 897
 898 static gboolean
 899 do_advanced_chown (const vfs_path_t * p, mode_t m, uid_t u, gid_t g)
 900 {
 901     gboolean ret;
 902
 903     ret = try_advanced_chown (p, m, u, g);
 904
 905     do_file_mark (current_panel, current_file, 0);
 906
 907     return ret;
 908 }
 909
 910  /* --------------------------------------------------------------------------------------------- */
 911
 912 static void
 913 apply_advanced_chowns (vfs_path_t * vpath, struct stat *sf)
 914 {
 915     gid_t a_gid = sf->st_gid;
 916     uid_t a_uid = sf->st_uid;
 917     gboolean ok;
 918
 919     if (!do_advanced_chown
 920         (vpath, get_mode (), (ch_flags[9] == '+') ? a_uid : (uid_t) (-1),
 921          (ch_flags[10] == '+') ? a_gid : (gid_t) (-1)))
 922         return;
 923
 924     do
 925     {
 926         const char *fname;
 927
 928         fname = next_file ();
 929         vpath = vfs_path_from_str (fname);
 930         ok = (mc_stat (vpath, sf) == 0);
 931
 932         if (!ok)
 933         {
 934             /* if current file was deleted outside mc -- try next file */
 935             /* decrease current_panel->marked */
 936             do_file_mark (current_panel, current_file, 0);
 937
 938             /* try next file */
 939             ok = TRUE;
 940         }
 941         else
 942         {
 943             ch_cmode = sf->st_mode;
 944
 945             ok = do_advanced_chown (vpath, get_mode (),
 946                                     (ch_flags[9] == '+') ? a_uid : (uid_t) (-1),
 947                                     (ch_flags[10] == '+') ? a_gid : (gid_t) (-1));
 948         }
 949
 950         vfs_path_free (vpath);
 951     }
 952     while (ok && current_panel->marked != 0);
 953 }
 954
 955 /* --------------------------------------------------------------------------------------------- */
 956 /*** public functions ****************************************************************************/
 957 /* --------------------------------------------------------------------------------------------- */
 958
 959 void
 960 advanced_chown_cmd (void)
 961 {
 962     gboolean need_update;
 963     gboolean end_chown;
 964
 965     /* Number of files at startup */
 966     int files_on_begin;
 967
 968     files_on_begin = MAX (1, current_panel->marked);
 969
 970     advanced_chown_i18n ();
 971
 972     current_file = 0;
 973     ignore_all = FALSE;
 974
 975     do
 976     {                           /* do while any files remaining */
 977         vfs_path_t *vpath;
 978         WDialog *ch_dlg;
 979         const char *fname;
 980         int result;
 981         int file_idx;
 982         char buffer[BUF_MEDIUM];
 983
 984         do_refresh ();
 985
 986         need_update = FALSE;
 987         end_chown = FALSE;
 988
 989         if (current_panel->marked != 0)
 990             fname = next_file ();       /* next marked file */
 991         else
 992             fname = selection (current_panel)->fname;   /* single file */
 993
 994         vpath = vfs_path_from_str (fname);
 995
 996         if (mc_stat (vpath, &sf_stat) != 0)
 997         {
 998             vfs_path_free (vpath);
 999             break;
1000         }
1001
1002         ch_cmode = sf_stat.st_mode;
1003
1004         ch_dlg = advanced_chown_init ();
1005
1006         file_idx = files_on_begin == 1 ? 1 : (files_on_begin - current_panel->marked + 1);
1007         g_snprintf (buffer, sizeof (buffer), "%s (%d/%d)",
1008                     str_fit_to_term (fname, WIDGET (ch_dlg)->cols - 20, J_LEFT_FIT),
1009                     file_idx, files_on_begin);
1010         label_set_text (l_filename, buffer);
1011         update_ownership ();
1012
1013         result = dlg_run (ch_dlg);
1014
1015         switch (result)
1016         {
1017         case B_CANCEL:
1018             end_chown = TRUE;
1019             break;
1020
1021         case B_ENTER:
1022             if (current_panel->marked <= 1)
1023             {
1024                 /* single or last file */
1025                 if (mc_chmod (vpath, get_mode ()) == -1)
1026                     message (D_ERROR, MSG_ERROR, _("Cannot chmod \"%s\"\n%s"),
1027                              fname, unix_error_string (errno));
1028                 /* call mc_chown only, if mc_chmod didn't fail */
1029                 else if (mc_chown
1030                          (vpath, (ch_flags[9] == '+') ? sf_stat.st_uid : (uid_t) (-1),
1031                           (ch_flags[10] == '+') ? sf_stat.st_gid : (gid_t) (-1)) == -1)
1032                     message (D_ERROR, MSG_ERROR, _("Cannot chown \"%s\"\n%s"), fname,
1033                              unix_error_string (errno));
1034
1035                 end_chown = TRUE;
1036             }
1037             else if (!try_advanced_chown
1038                      (vpath, get_mode (), (ch_flags[9] == '+') ? sf_stat.st_uid : (uid_t) (-1),
1039                       (ch_flags[10] == '+') ? sf_stat.st_gid : (gid_t) (-1)))
1040             {
1041                 /* stop multiple files processing */
1042                 result = B_CANCEL;
1043                 end_chown = TRUE;
1044             }
1045
1046             need_update = TRUE;
1047             break;
1048
1049         case B_SETALL:
1050             apply_advanced_chowns (vpath, &sf_stat);
1051             need_update = TRUE;
1052             end_chown = TRUE;
1053             break;
1054
1055         case B_SKIP:
1056         default:
1057             break;
1058         }
1059
1060         if (current_panel->marked != 0 && result != B_CANCEL)
1061         {
1062             do_file_mark (current_panel, current_file, 0);
1063             need_update = TRUE;
1064         }
1065
1066         vfs_path_free (vpath);
1067
1068         dlg_destroy (ch_dlg);
1069     }
1070     while (current_panel->marked != 0 && !end_chown);
1071
1072     advanced_chown_done (need_update);
1073 }
1074
1075 /* --------------------------------------------------------------------------------------------- */