src/filemanager/achown.c

   1 /*
   2    Chown-advanced command -- for the Midnight Commander
   3
   4    Copyright (C) 1994-2024
   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 "cmd.h"                /* advanced_chown_cmd() */
  49
  50 /*** global variables ****************************************************************************/
  51
  52 /*** file scope macro definitions ****************************************************************/
  53
  54 #define BX 5
  55 #define BY 5
  56
  57 #define BUTTONS      9
  58 #define BUTTONS_PERM 5
  59
  60 #define B_SETALL B_USER
  61 #define B_SKIP   (B_USER + 1)
  62
  63 /*** file scope type declarations ****************************************************************/
  64
  65 /*** forward declarations (file scope functions) *************************************************/
  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_init (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_gotoyx (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_gotoyx (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_gotoyx (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_gotoyx (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_gotoyx (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 (const WDialog * h)
 283 {
 284     tty_setcolor (COLOR_NORMAL);
 285
 286     widget_gotoyx (h, BY - 1, advanced_chown_but[0].x + 5);
 287     tty_print_string (_("owner"));
 288     widget_gotoyx (h, BY - 1, advanced_chown_but[1].x + 5);
 289     tty_print_string (_("group"));
 290     widget_gotoyx (h, BY - 1, advanced_chown_but[2].x + 5);
 291     tty_print_string (_("other"));
 292
 293     widget_gotoyx (h, BY - 1, advanced_chown_but[3].x + 5);
 294     tty_print_string (_("owner"));
 295     widget_gotoyx (h, BY - 1, advanced_chown_but[4].x + 5);
 296     tty_print_string (_("group"));
 297
 298     widget_gotoyx (h, BY + 1, 3);
 299     tty_print_string (_("Flag"));
 300     print_flags (h);
 301 }
 302
 303 /* --------------------------------------------------------------------------------------------- */
 304
 305 static void
 306 advanced_chown_info_update (void)
 307 {
 308     /* mode */
 309     label_set_textv (l_mode, _("Permissions (octal): %o"), get_mode ());
 310
 311     /* permissions */
 312     update_permissions ();
 313 }
 314
 315 /* --------------------------------------------------------------------------------------------- */
 316
 317 static void
 318 update_mode (WGroup * g)
 319 {
 320     print_flags (DIALOG (g));
 321     advanced_chown_info_update ();
 322     widget_set_state (WIDGET (g->current->data), WST_FOCUSED, TRUE);
 323 }
 324
 325 /* --------------------------------------------------------------------------------------------- */
 326
 327 static cb_ret_t
 328 perm_button_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
 329 {
 330     WButton *b = BUTTON (w);
 331     WGroup *g = w->owner;
 332     int i = 0;
 333     int f_pos;
 334
 335     /* one of permission buttons */
 336     if (b == b_att[0])
 337         f_pos = 0;
 338     else if (b == b_att[1])
 339         f_pos = 1;
 340     else                        /* if (w == b_att [1] */
 341         f_pos = 2;
 342
 343     switch (msg)
 344     {
 345     case MSG_FOCUS:
 346         if (b->hotpos == -1)
 347             b->hotpos = 0;
 348
 349         flag_pos = f_pos * 3 + b->hotpos;
 350         return MSG_HANDLED;
 351
 352     case MSG_KEY:
 353         switch (parm)
 354         {
 355         case '*':
 356             parm = '=';
 357             MC_FALLTHROUGH;
 358
 359         case '-':
 360         case '=':
 361         case '+':
 362             flag_pos = f_pos * 3 + b->hotpos;
 363             ch_flags[flag_pos] = parm;
 364             update_mode (g);
 365             send_message (w, NULL, MSG_KEY, KEY_RIGHT, NULL);
 366             if (b->hotpos == 2)
 367                 group_select_next_widget (g);
 368             break;
 369
 370         case XCTRL ('f'):
 371         case KEY_RIGHT:
 372             {
 373                 cb_ret_t ret;
 374
 375                 ret = inc_flag_pos ();
 376                 b->hotpos = flag_pos % 3;
 377                 return ret;
 378             }
 379
 380         case XCTRL ('b'):
 381         case KEY_LEFT:
 382             {
 383                 cb_ret_t ret;
 384
 385                 ret = dec_flag_pos ();
 386                 b->hotpos = flag_pos % 3;
 387                 return ret;
 388             }
 389
 390         case 'x':
 391             i++;
 392             MC_FALLTHROUGH;
 393
 394         case 'w':
 395             i++;
 396             MC_FALLTHROUGH;
 397
 398         case 'r':
 399             b->hotpos = i;
 400             MC_FALLTHROUGH;
 401
 402         case ' ':
 403             i = b->hotpos;
 404
 405             flag_pos = f_pos * 3 + i;
 406             if (b->text.start[flag_pos % 3] == '-')
 407                 ch_flags[flag_pos] = '+';
 408             else
 409                 ch_flags[flag_pos] = '-';
 410             update_mode (w->owner);
 411             break;
 412
 413         case '4':
 414             i++;
 415             MC_FALLTHROUGH;
 416
 417         case '2':
 418             i++;
 419             MC_FALLTHROUGH;
 420
 421         case '1':
 422             b->hotpos = i;
 423             flag_pos = f_pos * 3 + i;
 424             ch_flags[flag_pos] = '=';
 425             update_mode (g);
 426             break;
 427
 428         default:
 429             break;
 430         }
 431         /* continue key handling in the dialog level */
 432         return MSG_NOT_HANDLED;
 433
 434     default:
 435         return button_default_callback (w, sender, msg, parm, data);
 436     }
 437 }
 438
 439 /* --------------------------------------------------------------------------------------------- */
 440
 441 static void
 442 perm_button_mouse_callback (Widget * w, mouse_msg_t msg, mouse_event_t * event)
 443 {
 444     switch (msg)
 445     {
 446     case MSG_MOUSE_DOWN:
 447         /* place cursor on flag that is being modified */
 448         BUTTON (w)->hotpos = CLAMP (event->x - 1, 0, 2);
 449         MC_FALLTHROUGH;
 450
 451     default:
 452         button_mouse_default_callback (w, msg, event);
 453         break;
 454     }
 455 }
 456
 457 /* --------------------------------------------------------------------------------------------- */
 458
 459 static WButton *
 460 perm_button_new (int y, int x, int action, button_flags_t flags, const char *text,
 461                  bcback_fn callback)
 462 {
 463     WButton *b;
 464     Widget *w;
 465
 466     /* create base button using native API */
 467     b = button_new (y, x, action, flags, text, callback);
 468     w = WIDGET (b);
 469
 470     /* we don't want HOTKEY */
 471     widget_want_hotkey (w, FALSE);
 472
 473     w->callback = perm_button_callback;
 474     w->mouse_callback = perm_button_mouse_callback;
 475
 476     return b;
 477 }
 478
 479 /* --------------------------------------------------------------------------------------------- */
 480
 481 static cb_ret_t
 482 chl_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
 483 {
 484     switch (msg)
 485     {
 486     case MSG_KEY:
 487         switch (parm)
 488         {
 489         case KEY_LEFT:
 490         case KEY_RIGHT:
 491             {
 492                 WDialog *h = DIALOG (w);
 493
 494                 h->ret_value = parm;
 495                 dlg_close (h);
 496             }
 497             break;
 498         default:
 499             break;
 500         }
 501         MC_FALLTHROUGH;
 502
 503     default:
 504         return dlg_default_callback (w, sender, msg, parm, data);
 505     }
 506 }
 507
 508 /* --------------------------------------------------------------------------------------------- */
 509
 510 static int
 511 user_group_button_cb (WButton * button, int action)
 512 {
 513     Widget *w = WIDGET (button);
 514     int f_pos;
 515     gboolean chl_end;
 516
 517     (void) action;
 518
 519     if (button == b_user)
 520         f_pos = BUTTONS_PERM - 2;
 521     else if (button == b_group)
 522         f_pos = BUTTONS_PERM - 1;
 523     else
 524         return 0;               /* do nothing */
 525
 526     do
 527     {
 528         WGroup *g = w->owner;
 529         WDialog *h = DIALOG (g);
 530         Widget *wh = WIDGET (h);
 531
 532         gboolean is_owner = (f_pos == BUTTONS_PERM - 2);
 533         const char *title;
 534         int lxx, b_current;
 535         WDialog *chl_dlg;
 536         WListbox *chl_list;
 537         int result;
 538         int fe;
 539         struct passwd *chl_pass;
 540         struct group *chl_grp;
 541
 542         chl_end = FALSE;
 543
 544         if (is_owner)
 545         {
 546             title = _("owner");
 547             lxx = WIDGET (b_user)->rect.x + 1;
 548         }
 549         else
 550         {
 551             title = _("group");
 552             lxx = WIDGET (b_group)->rect.x + 1;
 553         }
 554
 555         chl_dlg =
 556             dlg_create (TRUE, wh->rect.y - 1, lxx, wh->rect.lines + 2, 17, WPOS_KEEP_DEFAULT, TRUE,
 557                         dialog_colors, chl_callback, NULL, "[Advanced Chown]", title);
 558
 559         /* get new listboxes */
 560         chl_list =
 561             listbox_new (1, 1, WIDGET (chl_dlg)->rect.lines - 2, WIDGET (chl_dlg)->rect.cols - 2,
 562                          FALSE, NULL);
 563         listbox_add_item (chl_list, LISTBOX_APPEND_AT_END, 0, "<Unknown>", NULL, FALSE);
 564         if (is_owner)
 565         {
 566             /* get and put user names in the listbox */
 567             setpwent ();
 568             while ((chl_pass = getpwent ()) != NULL)
 569                 listbox_add_item (chl_list, LISTBOX_APPEND_SORTED, 0, chl_pass->pw_name, NULL,
 570                                   FALSE);
 571             endpwent ();
 572             fe = listbox_search_text (chl_list, get_owner (sf_stat.st_uid));
 573         }
 574         else
 575         {
 576             /* get and put group names in the listbox */
 577             setgrent ();
 578             while ((chl_grp = getgrent ()) != NULL)
 579                 listbox_add_item (chl_list, LISTBOX_APPEND_SORTED, 0, chl_grp->gr_name, NULL,
 580                                   FALSE);
 581             endgrent ();
 582             fe = listbox_search_text (chl_list, get_group (sf_stat.st_gid));
 583         }
 584
 585         listbox_set_current (chl_list, fe);
 586
 587         b_current = chl_list->current;
 588         group_add_widget (GROUP (chl_dlg), chl_list);
 589
 590         result = dlg_run (chl_dlg);
 591
 592         if (result != B_CANCEL)
 593         {
 594             if (b_current != chl_list->current)
 595             {
 596                 gboolean ok = FALSE;
 597                 char *text;
 598
 599                 listbox_get_current (chl_list, &text, NULL);
 600                 if (is_owner)
 601                 {
 602                     chl_pass = getpwnam (text);
 603                     if (chl_pass != NULL)
 604                     {
 605                         sf_stat.st_uid = chl_pass->pw_uid;
 606                         ok = TRUE;
 607                     }
 608                 }
 609                 else
 610                 {
 611                     chl_grp = getgrnam (text);
 612                     if (chl_grp != NULL)
 613                     {
 614                         sf_stat.st_gid = chl_grp->gr_gid;
 615                         ok = TRUE;
 616                     }
 617                 }
 618
 619                 if (!ok)
 620                     group_select_current_widget (g);
 621                 else
 622                 {
 623                     ch_flags[f_pos + 6] = '+';
 624                     update_ownership ();
 625                     group_select_current_widget (g);
 626                     print_flags (h);
 627                 }
 628             }
 629
 630             if (result == KEY_LEFT)
 631             {
 632                 if (!is_owner)
 633                     chl_end = TRUE;
 634                 group_select_prev_widget (g);
 635                 f_pos--;
 636             }
 637             else if (result == KEY_RIGHT)
 638             {
 639                 if (is_owner)
 640                     chl_end = TRUE;
 641                 group_select_next_widget (g);
 642                 f_pos++;
 643             }
 644         }
 645
 646         /* Here we used to redraw the window */
 647         widget_destroy (WIDGET (chl_dlg));
 648     }
 649     while (chl_end);
 650
 651     return 0;
 652 }
 653
 654 /* --------------------------------------------------------------------------------------------- */
 655
 656 static cb_ret_t
 657 advanced_chown_bg_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
 658 {
 659     switch (msg)
 660     {
 661     case MSG_DRAW:
 662         frame_callback (w, NULL, MSG_DRAW, 0, NULL);
 663         advanced_chown_refresh (DIALOG (w->owner));
 664         advanced_chown_info_update ();
 665         return MSG_HANDLED;
 666
 667     default:
 668         return frame_callback (w, sender, msg, parm, data);
 669     }
 670 }
 671
 672 /* --------------------------------------------------------------------------------------------- */
 673
 674 static cb_ret_t
 675 advanced_chown_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
 676 {
 677     WGroup *g = GROUP (w);
 678     int i = 0;
 679
 680     switch (msg)
 681     {
 682     case MSG_KEY:
 683         switch (parm)
 684         {
 685         case ALT ('x'):
 686             i++;
 687             MC_FALLTHROUGH;
 688
 689         case ALT ('w'):
 690             i++;
 691             MC_FALLTHROUGH;
 692
 693         case ALT ('r'):
 694             parm = i + 3;
 695             for (i = 0; i < 3; i++)
 696                 ch_flags[i * 3 + parm - 3] = (x_toggle & (1 << parm)) ? '-' : '+';
 697             x_toggle ^= (1 << parm);
 698             update_mode (g);
 699             widget_draw (w);
 700             break;
 701
 702         case XCTRL ('x'):
 703             i++;
 704             MC_FALLTHROUGH;
 705
 706         case XCTRL ('w'):
 707             i++;
 708             MC_FALLTHROUGH;
 709
 710         case XCTRL ('r'):
 711             parm = i;
 712             for (i = 0; i < 3; i++)
 713                 ch_flags[i * 3 + parm] = (x_toggle & (1 << parm)) ? '-' : '+';
 714             x_toggle ^= (1 << parm);
 715             update_mode (g);
 716             widget_draw (w);
 717             break;
 718
 719         default:
 720             break;
 721         }
 722         return MSG_NOT_HANDLED;
 723
 724     default:
 725         return dlg_default_callback (w, sender, msg, parm, data);
 726     }
 727 }
 728
 729 /* --------------------------------------------------------------------------------------------- */
 730
 731 static WDialog *
 732 advanced_chown_dlg_create (WPanel * panel)
 733 {
 734     gboolean single_set;
 735     WDialog *ch_dlg;
 736     WGroup *ch_grp;
 737     int lines = 12;
 738     int cols = 74;
 739     int i;
 740     int y;
 741
 742     memset (ch_flags, '=', 11);
 743     flag_pos = 0;
 744     x_toggle = 070;
 745
 746     single_set = (panel->marked < 2);
 747     if (!single_set)
 748         lines += 2;
 749
 750     ch_dlg =
 751         dlg_create (TRUE, 0, 0, lines, cols, WPOS_CENTER, FALSE, dialog_colors,
 752                     advanced_chown_callback, NULL, "[Advanced Chown]", _("Chown advanced command"));
 753     ch_grp = GROUP (ch_dlg);
 754
 755     /* draw background */
 756     ch_dlg->bg->callback = advanced_chown_bg_callback;
 757
 758     l_filename = label_new (2, 3, NULL);
 759     group_add_widget (ch_grp, l_filename);
 760
 761     group_add_widget (ch_grp, hline_new (3, -1, -1));
 762
 763 #define XTRACT(i,y,cb) y, BX+advanced_chown_but[i].x, \
 764         advanced_chown_but[i].ret_cmd, advanced_chown_but[i].flags, \
 765         (advanced_chown_but[i].text), cb
 766     b_att[0] = perm_button_new (XTRACT (0, BY, NULL));
 767     advanced_chown_but[0].id = group_add_widget (ch_grp, b_att[0]);
 768     b_att[1] = perm_button_new (XTRACT (1, BY, NULL));
 769     advanced_chown_but[1].id = group_add_widget (ch_grp, b_att[1]);
 770     b_att[2] = perm_button_new (XTRACT (2, BY, NULL));
 771     advanced_chown_but[2].id = group_add_widget (ch_grp, b_att[2]);
 772     b_user = button_new (XTRACT (3, BY, user_group_button_cb));
 773     advanced_chown_but[3].id = group_add_widget (ch_grp, b_user);
 774     b_group = button_new (XTRACT (4, BY, user_group_button_cb));
 775     advanced_chown_but[4].id = group_add_widget (ch_grp, b_group);
 776
 777     l_mode = label_new (BY + 2, 3, NULL);
 778     group_add_widget (ch_grp, l_mode);
 779
 780     y = BY + 3;
 781     if (!single_set)
 782     {
 783         i = BUTTONS_PERM;
 784         group_add_widget (ch_grp, hline_new (y++, -1, -1));
 785         advanced_chown_but[i].id = group_add_widget (ch_grp,
 786                                                      button_new (y,
 787                                                                  WIDGET (ch_dlg)->rect.cols / 2 -
 788                                                                  advanced_chown_but[i].len,
 789                                                                  advanced_chown_but[i].ret_cmd,
 790                                                                  advanced_chown_but[i].flags,
 791                                                                  advanced_chown_but[i].text, NULL));
 792         i++;
 793         advanced_chown_but[i].id = group_add_widget (ch_grp,
 794                                                      button_new (y,
 795                                                                  WIDGET (ch_dlg)->rect.cols / 2 + 1,
 796                                                                  advanced_chown_but[i].ret_cmd,
 797                                                                  advanced_chown_but[i].flags,
 798                                                                  advanced_chown_but[i].text, NULL));
 799         y++;
 800     }
 801
 802     i = BUTTONS_PERM + 2;
 803     group_add_widget (ch_grp, hline_new (y++, -1, -1));
 804     advanced_chown_but[i].id = group_add_widget (ch_grp,
 805                                                  button_new (y,
 806                                                              WIDGET (ch_dlg)->rect.cols / 2 -
 807                                                              advanced_chown_but[i].len,
 808                                                              advanced_chown_but[i].ret_cmd,
 809                                                              advanced_chown_but[i].flags,
 810                                                              advanced_chown_but[i].text, NULL));
 811     i++;
 812     advanced_chown_but[i].id = group_add_widget (ch_grp,
 813                                                  button_new (y, WIDGET (ch_dlg)->rect.cols / 2 + 1,
 814                                                              advanced_chown_but[i].ret_cmd,
 815                                                              advanced_chown_but[i].flags,
 816                                                              advanced_chown_but[i].text, NULL));
 817
 818     widget_select (WIDGET (b_att[0]));
 819
 820     return ch_dlg;
 821 }
 822
 823 /* --------------------------------------------------------------------------------------------- */
 824
 825 static void
 826 advanced_chown_done (gboolean need_update)
 827 {
 828     if (need_update)
 829         update_panels (UP_OPTIMIZE, UP_KEEPSEL);
 830     repaint_screen ();
 831 }
 832
 833 /* --------------------------------------------------------------------------------------------- */
 834
 835 static const GString *
 836 next_file (const WPanel * panel)
 837 {
 838     while (panel->dir.list[current_file].f.marked == 0)
 839         current_file++;
 840
 841     return panel->dir.list[current_file].fname;
 842 }
 843
 844 /* --------------------------------------------------------------------------------------------- */
 845
 846 static gboolean
 847 try_advanced_chown (const vfs_path_t * p, mode_t m, uid_t u, gid_t g)
 848 {
 849     int chmod_result;
 850     const char *fname = NULL;
 851
 852     while ((chmod_result = mc_chmod (p, m)) == -1 && !ignore_all)
 853     {
 854         int my_errno = errno;
 855         int result;
 856         char *msg;
 857
 858         if (fname == NULL)
 859             fname = x_basename (vfs_path_as_str (p));
 860         msg = g_strdup_printf (_("Cannot chmod \"%s\"\n%s"), fname, unix_error_string (my_errno));
 861         result =
 862             query_dialog (MSG_ERROR, msg, D_ERROR, 4, _("&Ignore"), _("Ignore &all"), _("&Retry"),
 863                           _("&Cancel"));
 864         g_free (msg);
 865
 866         switch (result)
 867         {
 868         case 0:
 869             /* call mc_chown() only, if mc_chmod() didn't fail */
 870             return TRUE;
 871
 872         case 1:
 873             ignore_all = TRUE;
 874             /* call mc_chown() only, if mc_chmod() didn't fail */
 875             return TRUE;
 876
 877         case 2:
 878             /* retry chmod of this file */
 879             break;
 880
 881         case 3:
 882         default:
 883             /* stop remain files processing */
 884             return FALSE;
 885         }
 886     }
 887
 888     /* call mc_chown() only, if mc_chmod didn't fail */
 889     while (chmod_result != -1 && mc_chown (p, u, g) == -1 && !ignore_all)
 890     {
 891         int my_errno = errno;
 892         int result;
 893         char *msg;
 894
 895         if (fname == NULL)
 896             fname = x_basename (vfs_path_as_str (p));
 897         msg = g_strdup_printf (_("Cannot chown \"%s\"\n%s"), fname, unix_error_string (my_errno));
 898         result =
 899             query_dialog (MSG_ERROR, msg, D_ERROR, 4, _("&Ignore"), _("Ignore &all"), _("&Retry"),
 900                           _("&Cancel"));
 901         g_free (msg);
 902
 903         switch (result)
 904         {
 905         case 0:
 906             /* try next file */
 907             return TRUE;
 908
 909         case 1:
 910             ignore_all = TRUE;
 911             /* try next file */
 912             return TRUE;
 913
 914         case 2:
 915             /* retry chown of this file */
 916             break;
 917
 918         case 3:
 919         default:
 920             /* stop remain files processing */
 921             return FALSE;
 922         }
 923     }
 924
 925     return TRUE;
 926
 927 }
 928
 929 /* --------------------------------------------------------------------------------------------- */
 930
 931 static gboolean
 932 do_advanced_chown (WPanel * panel, const vfs_path_t * p, mode_t m, uid_t u, gid_t g)
 933 {
 934     gboolean ret;
 935
 936     ret = try_advanced_chown (p, m, u, g);
 937
 938     do_file_mark (panel, current_file, 0);
 939
 940     return ret;
 941 }
 942
 943  /* --------------------------------------------------------------------------------------------- */
 944
 945 static void
 946 apply_advanced_chowns (WPanel * panel, vfs_path_t * vpath, struct stat *sf)
 947 {
 948     gid_t a_gid = sf->st_gid;
 949     uid_t a_uid = sf->st_uid;
 950     gboolean ok;
 951
 952     if (!do_advanced_chown (panel, vpath, get_mode (),
 953                             (ch_flags[9] == '+') ? a_uid : (uid_t) (-1),
 954                             (ch_flags[10] == '+') ? a_gid : (gid_t) (-1)))
 955         return;
 956
 957     do
 958     {
 959         const GString *fname;
 960
 961         fname = next_file (panel);
 962         vpath = vfs_path_from_str (fname->str);
 963         ok = (mc_stat (vpath, sf) == 0);
 964
 965         if (!ok)
 966         {
 967             /* if current file was deleted outside mc -- try next file */
 968             /* decrease panel->marked */
 969             do_file_mark (panel, current_file, 0);
 970
 971             /* try next file */
 972             ok = TRUE;
 973         }
 974         else
 975         {
 976             ch_cmode = sf->st_mode;
 977
 978             ok = do_advanced_chown (panel, vpath, get_mode (),
 979                                     (ch_flags[9] == '+') ? a_uid : (uid_t) (-1),
 980                                     (ch_flags[10] == '+') ? a_gid : (gid_t) (-1));
 981         }
 982
 983         vfs_path_free (vpath, TRUE);
 984     }
 985     while (ok && panel->marked != 0);
 986 }
 987
 988 /* --------------------------------------------------------------------------------------------- */
 989 /*** public functions ****************************************************************************/
 990 /* --------------------------------------------------------------------------------------------- */
 991
 992 void
 993 advanced_chown_cmd (WPanel * panel)
 994 {
 995     gboolean need_update;
 996     gboolean end_chown;
 997
 998     /* Number of files at startup */
 999     int files_on_begin;
1000
1001     files_on_begin = MAX (1, panel->marked);
1002
1003     advanced_chown_init ();
1004
1005     current_file = 0;
1006     ignore_all = FALSE;
1007
1008     do
1009     {                           /* do while any files remaining */
1010         vfs_path_t *vpath;
1011         WDialog *ch_dlg;
1012         const GString *fname;
1013         int result;
1014         int file_idx;
1015
1016         do_refresh ();
1017
1018         need_update = FALSE;
1019         end_chown = FALSE;
1020
1021         if (panel->marked != 0)
1022             fname = next_file (panel);  /* next marked file */
1023         else
1024             fname = panel_current_entry (panel)->fname; /* single file */
1025
1026         vpath = vfs_path_from_str (fname->str);
1027
1028         if (mc_stat (vpath, &sf_stat) != 0)
1029         {
1030             vfs_path_free (vpath, TRUE);
1031             break;
1032         }
1033
1034         ch_cmode = sf_stat.st_mode;
1035
1036         ch_dlg = advanced_chown_dlg_create (panel);
1037
1038         file_idx = files_on_begin == 1 ? 1 : (files_on_begin - panel->marked + 1);
1039         label_set_textv (l_filename, "%s (%d/%d)",
1040                          str_fit_to_term (fname->str, WIDGET (ch_dlg)->rect.cols - 20, J_LEFT_FIT),
1041                          file_idx, files_on_begin);
1042         update_ownership ();
1043
1044         result = dlg_run (ch_dlg);
1045
1046         switch (result)
1047         {
1048         case B_CANCEL:
1049             end_chown = TRUE;
1050             break;
1051
1052         case B_ENTER:
1053             {
1054                 uid_t uid = ch_flags[9] == '+' ? sf_stat.st_uid : (uid_t) (-1);
1055                 gid_t gid = ch_flags[10] == '+' ? sf_stat.st_gid : (gid_t) (-1);
1056
1057                 if (panel->marked <= 1)
1058                 {
1059                     /* single or last file */
1060                     if (mc_chmod (vpath, get_mode ()) == -1)
1061                         message (D_ERROR, MSG_ERROR, _("Cannot chmod \"%s\"\n%s"),
1062                                  fname->str, unix_error_string (errno));
1063                     /* call mc_chown only, if mc_chmod didn't fail */
1064                     else if (mc_chown (vpath, uid, gid) == -1)
1065                         message (D_ERROR, MSG_ERROR, _("Cannot chown \"%s\"\n%s"), fname->str,
1066                                  unix_error_string (errno));
1067
1068                     end_chown = TRUE;
1069                 }
1070                 else if (!try_advanced_chown (vpath, get_mode (), uid, gid))
1071                 {
1072                     /* stop multiple files processing */
1073                     result = B_CANCEL;
1074                     end_chown = TRUE;
1075                 }
1076
1077                 need_update = TRUE;
1078                 break;
1079             }
1080
1081         case B_SETALL:
1082             apply_advanced_chowns (panel, vpath, &sf_stat);
1083             need_update = TRUE;
1084             end_chown = TRUE;
1085             break;
1086
1087         case B_SKIP:
1088         default:
1089             break;
1090         }
1091
1092         if (panel->marked != 0 && result != B_CANCEL)
1093         {
1094             do_file_mark (panel, current_file, 0);
1095             need_update = TRUE;
1096         }
1097
1098         vfs_path_free (vpath, TRUE);
1099
1100         widget_destroy (WIDGET (ch_dlg));
1101     }
1102     while (panel->marked != 0 && !end_chown);
1103
1104     advanced_chown_done (need_update);
1105 }
1106
1107 /* --------------------------------------------------------------------------------------------- */