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 "global.h"
  36
  37 #include "../src/tty/tty.h"
  38 #include "../src/skin/skin.h"
  39
  40 #include "dialog.h"
  41 #include "widget.h"
  42 #include "strutil.h"
  43
  44 /* Needed for the extern declarations of integer parameters */
  45 #include "dir.h"
  46 #include "panel.h"              /* Needed for the externs */
  47 #include "chmod.h"
  48 #include "main.h"               /* update_panels() */
  49 #include "layout.h"             /* repaint_screen() */
  50 #include "chown.h"
  51 #include "wtools.h"             /* For init_box_colors */
  52
  53 #define UX              5
  54 #define UY              2
  55
  56 #define GX              27
  57 #define GY              2
  58
  59 #define BX              5
  60 #define BY              15
  61
  62 #define TX              50
  63 #define TY              2
  64
  65 #define BUTTONS         5
  66
  67 #define B_SETALL        B_USER
  68 #define B_SETUSR        (B_USER + 1)
  69 #define B_SETGRP        (B_USER + 2)
  70
  71 static int need_update, end_chown;
  72 static int current_file;
  73 static int single_set;
  74 static WListbox *l_user, *l_group;
  75
  76 static struct {
  77     int ret_cmd, flags, y, x;
  78     const char *text;
  79 } chown_but[BUTTONS] = {
  80     { B_CANCEL, NORMAL_BUTTON,  0, 53, N_("&Cancel") },
  81     { B_ENTER,  DEFPUSH_BUTTON, 0, 40, N_("&Set") },
  82     { B_SETUSR, NORMAL_BUTTON,  0, 25, N_("Set &users") },
  83     { B_SETGRP, NORMAL_BUTTON,  0, 11, N_("Set &groups") },
  84     { B_SETALL, NORMAL_BUTTON,  0, 0,  N_("Set &all") },
  85 };
  86
  87 #define LABELS 5
  88 static struct {
  89     int y, x;
  90     WLabel *l;
  91 } chown_label [LABELS] = {
  92 { TY+2, TX+2, NULL },
  93 { TY+4, TX+2, NULL },
  94 { TY+6, TX+2, NULL },
  95 { TY+8, TX+2, NULL },
  96 { TY+10,TX+2, NULL }
  97 };
  98
  99 static void
 100 chown_refresh (Dlg_head *h)
 101 {
 102     common_dialog_repaint (h);
 103
 104     tty_setcolor (COLOR_NORMAL);
 105
 106     draw_box (h, UY, UX, 12, 21);
 107     draw_box (h, GY, GX, 12, 21);
 108     draw_box (h, TY, TX, 12, 19);
 109
 110     dlg_move (h, TY + 1, TX + 1);
 111     tty_print_string (_(" Name "));
 112     dlg_move (h, TY + 3, TX + 1);
 113     tty_print_string (_(" Owner name "));
 114     dlg_move (h, TY + 5, TX + 1);
 115     tty_print_string (_(" Group name "));
 116     dlg_move (h, TY + 7, TX + 1);
 117     tty_print_string (_(" Size "));
 118     dlg_move (h, TY + 9, TX + 1);
 119     tty_print_string (_(" Permission "));
 120
 121     tty_setcolor (COLOR_HOT_NORMAL);
 122     dlg_move (h, UY, UX + 1);
 123     tty_print_string (_(" User name "));
 124     dlg_move (h, GY, GX + 1);
 125     tty_print_string (_(" Group name "));
 126     dlg_move (h, TY, TX + 1);
 127     tty_print_string (_(" File "));
 128 }
 129
 130 static char *
 131 next_file (void)
 132 {
 133     while (!current_panel->dir.list[current_file].f.marked)
 134         current_file++;
 135
 136     return current_panel->dir.list[current_file].fname;
 137 }
 138
 139 static cb_ret_t
 140 chown_callback (Dlg_head *h, Widget *sender,
 141                 dlg_msg_t msg, int parm, void *data)
 142 {
 143     switch (msg) {
 144     case DLG_DRAW:
 145         chown_refresh (h);
 146         return MSG_HANDLED;
 147
 148     default:
 149         return default_dlg_callback (h, sender, msg, parm, data);
 150     }
 151 }
 152
 153 static Dlg_head *
 154 init_chown (void)
 155 {
 156     int i;
 157     struct passwd *l_pass;
 158     struct group *l_grp;
 159     Dlg_head *ch_dlg;
 160
 161     do_refresh ();
 162     end_chown = need_update = current_file = 0;
 163     single_set = (current_panel->marked < 2) ? 3 : 0;
 164
 165     ch_dlg =
 166         create_dlg (0, 0, 18, 74, dialog_colors, chown_callback, "[Chown]",
 167                     _(" Chown command "), DLG_CENTER | DLG_REVERSE);
 168
 169     for (i = 0; i < BUTTONS - single_set; i++)
 170         add_widget (ch_dlg,
 171                     button_new (BY + chown_but[i].y, BX + chown_but[i].x,
 172                                 chown_but[i].ret_cmd, chown_but[i].flags,
 173                                 _(chown_but[i].text), 0));
 174
 175     /* Add the widgets for the file information */
 176     for (i = 0; i < LABELS; i++) {
 177         chown_label[i].l =
 178             label_new (chown_label[i].y, chown_label[i].x, "");
 179         add_widget (ch_dlg, chown_label[i].l);
 180     }
 181
 182     /* get new listboxes */
 183     l_user = listbox_new (UY + 1, UX + 1, 10, 19, NULL);
 184     l_group = listbox_new (GY + 1, GX + 1, 10, 19, NULL);
 185
 186     /* add fields for unknown names (numbers) */
 187     listbox_add_item (l_user, 0, 0, _("<Unknown user>"), NULL);
 188     listbox_add_item (l_group, 0, 0, _("<Unknown group>"), NULL);
 189
 190     /* get and put user names in the listbox */
 191     setpwent ();
 192     while ((l_pass = getpwent ())) {
 193         listbox_add_item (l_user, LISTBOX_APPEND_SORTED, 0, l_pass->pw_name, NULL);
 194     }
 195     endpwent ();
 196
 197     /* get and put group names in the listbox */
 198     setgrent ();
 199     while ((l_grp = getgrent ())) {
 200         listbox_add_item (l_group, LISTBOX_APPEND_SORTED, 0, l_grp->gr_name, NULL);
 201     }
 202     endgrent ();
 203
 204     /* add listboxes to the dialogs */
 205     add_widget (ch_dlg, l_group);
 206     add_widget (ch_dlg, l_user);
 207
 208     return ch_dlg;
 209 }
 210
 211 static void
 212 chown_done (void)
 213 {
 214     if (need_update)
 215         update_panels (UP_OPTIMIZE, UP_KEEPSEL);
 216     repaint_screen ();
 217 }
 218
 219 static void
 220 do_chown (uid_t u, gid_t g)
 221 {
 222     if (mc_chown (current_panel->dir.list [current_file].fname, u, g) == -1)
 223         message (D_ERROR, MSG_ERROR, _(" Cannot chown \"%s\" \n %s "),
 224              current_panel->dir.list [current_file].fname, unix_error_string (errno));
 225
 226     do_file_mark (current_panel, current_file, 0);
 227 }
 228
 229 static void
 230 apply_chowns (uid_t u, gid_t g)
 231 {
 232     char *fname;
 233
 234     need_update = end_chown = 1;
 235     do_chown (u,g);
 236
 237     do {
 238         fname = next_file ();
 239
 240         do_chown (u,g);
 241     } while (current_panel->marked);
 242 }
 243
 244 #define chown_label(n,txt) label_set_text (chown_label [n].l, txt)
 245
 246 void
 247 chown_cmd (void)
 248 {
 249     char *fname;
 250     struct stat sf_stat;
 251     WLEntry *fe;
 252     Dlg_head *ch_dlg;
 253     uid_t new_user;
 254     gid_t new_group;
 255     char  buffer [BUF_TINY];
 256
 257     do {                        /* do while any files remaining */
 258         ch_dlg = init_chown ();
 259         new_user = new_group = -1;
 260
 261         if (current_panel->marked)
 262             fname = next_file ();               /* next marked file */
 263         else
 264             fname = selection (current_panel)->fname;           /* single file */
 265
 266         if (mc_stat (fname, &sf_stat) != 0) {   /* get status of file */
 267             destroy_dlg (ch_dlg);
 268             break;
 269         }
 270
 271         /* select in listboxes */
 272         fe = listbox_search_text (l_user, get_owner(sf_stat.st_uid));
 273         if (fe)
 274             listbox_select_entry (l_user, fe);
 275
 276         fe = listbox_search_text (l_group, get_group(sf_stat.st_gid));
 277         if (fe)
 278             listbox_select_entry (l_group, fe);
 279
 280         chown_label (0, str_trunc (fname, 15));
 281         chown_label (1, str_trunc (get_owner (sf_stat.st_uid), 15));
 282         chown_label (2, str_trunc (get_group (sf_stat.st_gid), 15));
 283         size_trunc_len (buffer, 15, sf_stat.st_size, 0);
 284         chown_label (3, buffer);
 285         chown_label (4, string_perm (sf_stat.st_mode));
 286
 287         run_dlg (ch_dlg);
 288
 289         switch (ch_dlg->ret_value) {
 290         case B_CANCEL:
 291             end_chown = 1;
 292             break;
 293
 294         case B_SETUSR:
 295         {
 296             struct passwd *user;
 297
 298             user = getpwnam (l_user->current->text);
 299             if (user){
 300                 new_user = user->pw_uid;
 301                 apply_chowns (new_user, new_group);
 302             }
 303             break;
 304         }
 305         case B_SETGRP:
 306         {
 307             struct group *grp;
 308
 309             grp = getgrnam (l_group->current->text);
 310             if (grp){
 311                 new_group = grp->gr_gid;
 312                 apply_chowns (new_user, new_group);
 313             }
 314             break;
 315         }
 316         case B_SETALL:
 317         case B_ENTER:
 318         {
 319             struct group *grp;
 320             struct passwd *user;
 321
 322             grp = getgrnam (l_group->current->text);
 323             if (grp)
 324                 new_group = grp->gr_gid;
 325             user = getpwnam (l_user->current->text);
 326             if (user)
 327                 new_user = user->pw_uid;
 328             if (ch_dlg->ret_value==B_ENTER) {
 329                 need_update = 1;
 330                 if (mc_chown (fname, new_user, new_group) == -1)
 331                     message (D_ERROR, MSG_ERROR, _(" Cannot chown \"%s\" \n %s "),
 332                          fname, unix_error_string (errno));
 333             } else
 334                 apply_chowns (new_user, new_group);
 335             break;
 336         }
 337         }
 338
 339         if (current_panel->marked && ch_dlg->ret_value != B_CANCEL){
 340             do_file_mark (current_panel, current_file, 0);
 341             need_update = 1;
 342         }
 343         destroy_dlg (ch_dlg);
 344     } while (current_panel->marked && !end_chown);
 345
 346     chown_done ();
 347 }