src/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
  42 #include "dialog.h"
  43 #include "widget.h"
  44
  45 /* Needed for the extern declarations of integer parameters */
  46 #include "dir.h"
  47 #include "panel.h"              /* Needed for the externs */
  48 #include "chmod.h"
  49 #include "main.h"               /* update_panels() */
  50 #include "layout.h"             /* repaint_screen() */
  51 #include "chown.h"
  52 #include "wtools.h"             /* For init_box_colors */
  53
  54 #define UX              5
  55 #define UY              2
  56
  57 #define GX              27
  58 #define GY              2
  59
  60 #define BX              5
  61 #define BY              15
  62
  63 #define TX              50
  64 #define TY              2
  65
  66 #define BUTTONS         5
  67
  68 #define B_SETALL        B_USER
  69 #define B_SETUSR        (B_USER + 1)
  70 #define B_SETGRP        (B_USER + 2)
  71
  72 static int need_update, end_chown;
  73 static int current_file;
  74 static int single_set;
  75 static WListbox *l_user, *l_group;
  76
  77 /* *INDENT-OFF* */
  78 static struct {
  79     int ret_cmd, flags, y, x;
  80     const char *text;
  81 } chown_but[BUTTONS] = {
  82     { B_CANCEL, NORMAL_BUTTON,  0, 53, N_("&Cancel") },
  83     { B_ENTER,  DEFPUSH_BUTTON, 0, 40, N_("&Set") },
  84     { B_SETUSR, NORMAL_BUTTON,  0, 25, N_("Set &users") },
  85     { B_SETGRP, NORMAL_BUTTON,  0, 11, N_("Set &groups") },
  86     { B_SETALL, NORMAL_BUTTON,  0, 0,  N_("Set &all") },
  87 };
  88
  89 #define LABELS 5
  90 static struct {
  91     int y, x;
  92     WLabel *l;
  93 } chown_label [LABELS] = {
  94 { TY+2, TX+2, NULL },
  95 { TY+4, TX+2, NULL },
  96 { TY+6, TX+2, NULL },
  97 { TY+8, TX+2, NULL },
  98 { TY+10,TX+2, NULL }
  99 };
 100 /* *INDENT-ON* */
 101
 102 static void
 103 chown_refresh (Dlg_head * h)
 104 {
 105     common_dialog_repaint (h);
 106
 107     tty_setcolor (COLOR_NORMAL);
 108
 109     draw_box (h, UY, UX, 12, 21);
 110     draw_box (h, GY, GX, 12, 21);
 111     draw_box (h, TY, TX, 12, 19);
 112
 113     dlg_move (h, TY + 1, TX + 1);
 114     tty_print_string (_(" Name "));
 115     dlg_move (h, TY + 3, TX + 1);
 116     tty_print_string (_(" Owner name "));
 117     dlg_move (h, TY + 5, TX + 1);
 118     tty_print_string (_(" Group name "));
 119     dlg_move (h, TY + 7, TX + 1);
 120     tty_print_string (_(" Size "));
 121     dlg_move (h, TY + 9, TX + 1);
 122     tty_print_string (_(" Permission "));
 123
 124     tty_setcolor (COLOR_HOT_NORMAL);
 125     dlg_move (h, UY, UX + 1);
 126     tty_print_string (_(" User name "));
 127     dlg_move (h, GY, GX + 1);
 128     tty_print_string (_(" Group name "));
 129     dlg_move (h, TY, TX + 1);
 130     tty_print_string (_(" File "));
 131 }
 132
 133 static char *
 134 next_file (void)
 135 {
 136     while (!current_panel->dir.list[current_file].f.marked)
 137         current_file++;
 138
 139     return current_panel->dir.list[current_file].fname;
 140 }
 141
 142 static cb_ret_t
 143 chown_callback (Dlg_head * h, Widget * sender, dlg_msg_t msg, int parm, void *data)
 144 {
 145     switch (msg)
 146     {
 147     case DLG_DRAW:
 148         chown_refresh (h);
 149         return MSG_HANDLED;
 150
 151     default:
 152         return default_dlg_callback (h, sender, msg, parm, data);
 153     }
 154 }
 155
 156 static Dlg_head *
 157 init_chown (void)
 158 {
 159     int i;
 160     struct passwd *l_pass;
 161     struct group *l_grp;
 162     Dlg_head *ch_dlg;
 163
 164     do_refresh ();
 165     end_chown = need_update = current_file = 0;
 166     single_set = (current_panel->marked < 2) ? 3 : 0;
 167
 168     ch_dlg =
 169         create_dlg (0, 0, 18, 74, dialog_colors, chown_callback, "[Chown]",
 170                     _(" Chown command "), DLG_CENTER | DLG_REVERSE);
 171
 172     for (i = 0; i < BUTTONS - single_set; i++)
 173         add_widget (ch_dlg,
 174                     button_new (BY + chown_but[i].y, BX + chown_but[i].x,
 175                                 chown_but[i].ret_cmd, chown_but[i].flags, _(chown_but[i].text), 0));
 176
 177     /* Add the widgets for the file information */
 178     for (i = 0; i < LABELS; i++)
 179     {
 180         chown_label[i].l = label_new (chown_label[i].y, chown_label[i].x, "");
 181         add_widget (ch_dlg, chown_label[i].l);
 182     }
 183
 184     /* get new listboxes */
 185     l_user = listbox_new (UY + 1, UX + 1, 10, 19, FALSE, NULL);
 186     l_group = listbox_new (GY + 1, GX + 1, 10, 19, FALSE, NULL);
 187
 188     /* add fields for unknown names (numbers) */
 189     listbox_add_item (l_user, LISTBOX_APPEND_AT_END, 0, _("<Unknown user>"), NULL);
 190     listbox_add_item (l_group, LISTBOX_APPEND_AT_END, 0, _("<Unknown group>"), NULL);
 191
 192     /* get and put user names in the listbox */
 193     setpwent ();
 194     while ((l_pass = getpwent ()))
 195     {
 196         listbox_add_item (l_user, LISTBOX_APPEND_SORTED, 0, l_pass->pw_name, NULL);
 197     }
 198     endpwent ();
 199
 200     /* get and put group names in the listbox */
 201     setgrent ();
 202     while ((l_grp = getgrent ()))
 203     {
 204         listbox_add_item (l_group, LISTBOX_APPEND_SORTED, 0, l_grp->gr_name, NULL);
 205     }
 206     endgrent ();
 207
 208     /* add listboxes to the dialogs */
 209     add_widget (ch_dlg, l_group);
 210     add_widget (ch_dlg, l_user);
 211
 212     return ch_dlg;
 213 }
 214
 215 static void
 216 chown_done (void)
 217 {
 218     if (need_update)
 219         update_panels (UP_OPTIMIZE, UP_KEEPSEL);
 220     repaint_screen ();
 221 }
 222
 223 static void
 224 do_chown (uid_t u, gid_t g)
 225 {
 226     if (mc_chown (current_panel->dir.list[current_file].fname, u, g) == -1)
 227         message (D_ERROR, MSG_ERROR, _(" Cannot chown \"%s\" \n %s "),
 228                  current_panel->dir.list[current_file].fname, unix_error_string (errno));
 229
 230     do_file_mark (current_panel, current_file, 0);
 231 }
 232
 233 static void
 234 apply_chowns (uid_t u, gid_t g)
 235 {
 236     char *fname;
 237
 238     need_update = end_chown = 1;
 239     do_chown (u, g);
 240
 241     do
 242     {
 243         fname = next_file ();
 244
 245         do_chown (u, g);
 246     }
 247     while (current_panel->marked);
 248 }
 249
 250 #define chown_label(n,txt) label_set_text (chown_label [n].l, txt)
 251
 252 void
 253 chown_cmd (void)
 254 {
 255     char *fname;
 256     struct stat sf_stat;
 257     Dlg_head *ch_dlg;
 258     uid_t new_user;
 259     gid_t new_group;
 260     char buffer[BUF_TINY];
 261
 262     do
 263     {                           /* do while any files remaining */
 264         ch_dlg = init_chown ();
 265         new_user = new_group = -1;
 266
 267         if (current_panel->marked)
 268             fname = next_file ();       /* next marked file */
 269         else
 270             fname = selection (current_panel)->fname;   /* single file */
 271
 272         if (mc_stat (fname, &sf_stat) != 0)
 273         {                       /* get status of file */
 274             destroy_dlg (ch_dlg);
 275             break;
 276         }
 277
 278         /* select in listboxes */
 279         listbox_select_entry (l_user, listbox_search_text (l_user, get_owner (sf_stat.st_uid)));
 280         listbox_select_entry (l_group, listbox_search_text (l_group, get_group (sf_stat.st_gid)));
 281
 282         chown_label (0, str_trunc (fname, 15));
 283         chown_label (1, str_trunc (get_owner (sf_stat.st_uid), 15));
 284         chown_label (2, str_trunc (get_group (sf_stat.st_gid), 15));
 285         size_trunc_len (buffer, 15, sf_stat.st_size, 0);
 286         chown_label (3, buffer);
 287         chown_label (4, string_perm (sf_stat.st_mode));
 288
 289         switch (run_dlg (ch_dlg))
 290         {
 291         case B_CANCEL:
 292             end_chown = 1;
 293             break;
 294
 295         case B_SETUSR:
 296             {
 297                 struct passwd *user;
 298                 char *text;
 299
 300                 listbox_get_current (l_user, &text, NULL);
 301                 user = getpwnam (text);
 302                 if (user)
 303                 {
 304                     new_user = user->pw_uid;
 305                     apply_chowns (new_user, new_group);
 306                 }
 307                 break;
 308             }
 309         case B_SETGRP:
 310             {
 311                 struct group *grp;
 312                 char *text;
 313
 314                 listbox_get_current (l_group, &text, NULL);
 315                 grp = getgrnam (text);
 316                 if (grp)
 317                 {
 318                     new_group = grp->gr_gid;
 319                     apply_chowns (new_user, new_group);
 320                 }
 321                 break;
 322             }
 323         case B_SETALL:
 324         case B_ENTER:
 325             {
 326                 struct group *grp;
 327                 struct passwd *user;
 328                 char *text;
 329
 330                 listbox_get_current (l_group, &text, NULL);
 331                 grp = getgrnam (text);
 332                 if (grp)
 333                     new_group = grp->gr_gid;
 334                 listbox_get_current (l_user, &text, NULL);
 335                 user = getpwnam (text);
 336                 if (user)
 337                     new_user = user->pw_uid;
 338                 if (ch_dlg->ret_value == B_ENTER)
 339                 {
 340                     need_update = 1;
 341                     if (mc_chown (fname, new_user, new_group) == -1)
 342                         message (D_ERROR, MSG_ERROR, _(" Cannot chown \"%s\" \n %s "),
 343                                  fname, unix_error_string (errno));
 344                 }
 345                 else
 346                     apply_chowns (new_user, new_group);
 347                 break;
 348             }
 349         }                       /* switch */
 350
 351         if (current_panel->marked && ch_dlg->ret_value != B_CANCEL)
 352         {
 353             do_file_mark (current_panel, current_file, 0);
 354             need_update = 1;
 355         }
 356         destroy_dlg (ch_dlg);
 357     }
 358     while (current_panel->marked && !end_chown);
 359
 360     chown_done ();
 361 }