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 static struct {
  78     int ret_cmd, flags, y, x;
  79     const char *text;
  80 } chown_but[BUTTONS] = {
  81     { B_CANCEL, NORMAL_BUTTON,  0, 53, N_("&Cancel") },
  82     { B_ENTER,  DEFPUSH_BUTTON, 0, 40, N_("&Set") },
  83     { B_SETUSR, NORMAL_BUTTON,  0, 25, N_("Set &users") },
  84     { B_SETGRP, NORMAL_BUTTON,  0, 11, N_("Set &groups") },
  85     { B_SETALL, NORMAL_BUTTON,  0, 0,  N_("Set &all") },
  86 };
  87
  88 #define LABELS 5
  89 static struct {
  90     int y, x;
  91     WLabel *l;
  92 } chown_label [LABELS] = {
  93 { TY+2, TX+2, NULL },
  94 { TY+4, TX+2, NULL },
  95 { TY+6, TX+2, NULL },
  96 { TY+8, TX+2, NULL },
  97 { TY+10,TX+2, NULL }
  98 };
  99
 100 static void
 101 chown_refresh (Dlg_head *h)
 102 {
 103     common_dialog_repaint (h);
 104
 105     tty_setcolor (COLOR_NORMAL);
 106
 107     draw_box (h, UY, UX, 12, 21);
 108     draw_box (h, GY, GX, 12, 21);
 109     draw_box (h, TY, TX, 12, 19);
 110
 111     dlg_move (h, TY + 1, TX + 1);
 112     tty_print_string (_(" Name "));
 113     dlg_move (h, TY + 3, TX + 1);
 114     tty_print_string (_(" Owner name "));
 115     dlg_move (h, TY + 5, TX + 1);
 116     tty_print_string (_(" Group name "));
 117     dlg_move (h, TY + 7, TX + 1);
 118     tty_print_string (_(" Size "));
 119     dlg_move (h, TY + 9, TX + 1);
 120     tty_print_string (_(" Permission "));
 121
 122     tty_setcolor (COLOR_HOT_NORMAL);
 123     dlg_move (h, UY, UX + 1);
 124     tty_print_string (_(" User name "));
 125     dlg_move (h, GY, GX + 1);
 126     tty_print_string (_(" Group name "));
 127     dlg_move (h, TY, TX + 1);
 128     tty_print_string (_(" File "));
 129 }
 130
 131 static char *
 132 next_file (void)
 133 {
 134     while (!current_panel->dir.list[current_file].f.marked)
 135         current_file++;
 136
 137     return current_panel->dir.list[current_file].fname;
 138 }
 139
 140 static cb_ret_t
 141 chown_callback (Dlg_head *h, Widget *sender,
 142                 dlg_msg_t msg, int parm, void *data)
 143 {
 144     switch (msg) {
 145     case DLG_DRAW:
 146         chown_refresh (h);
 147         return MSG_HANDLED;
 148
 149     default:
 150         return default_dlg_callback (h, sender, msg, parm, data);
 151     }
 152 }
 153
 154 static Dlg_head *
 155 init_chown (void)
 156 {
 157     int i;
 158     struct passwd *l_pass;
 159     struct group *l_grp;
 160     Dlg_head *ch_dlg;
 161
 162     do_refresh ();
 163     end_chown = need_update = current_file = 0;
 164     single_set = (current_panel->marked < 2) ? 3 : 0;
 165
 166     ch_dlg =
 167         create_dlg (0, 0, 18, 74, dialog_colors, chown_callback, "[Chown]",
 168                     _(" Chown command "), DLG_CENTER | DLG_REVERSE);
 169
 170     for (i = 0; i < BUTTONS - single_set; i++)
 171         add_widget (ch_dlg,
 172                     button_new (BY + chown_but[i].y, BX + chown_but[i].x,
 173                                 chown_but[i].ret_cmd, chown_but[i].flags,
 174                                 _(chown_but[i].text), 0));
 175
 176     /* Add the widgets for the file information */
 177     for (i = 0; i < LABELS; i++) {
 178         chown_label[i].l =
 179             label_new (chown_label[i].y, chown_label[i].x, "");
 180         add_widget (ch_dlg, chown_label[i].l);
 181     }
 182
 183     /* get new listboxes */
 184     l_user = listbox_new (UY + 1, UX + 1, 10, 19, FALSE, NULL);
 185     l_group = listbox_new (GY + 1, GX + 1, 10, 19, FALSE, NULL);
 186
 187     /* add fields for unknown names (numbers) */
 188     listbox_add_item (l_user, LISTBOX_APPEND_AT_END, 0, _("<Unknown user>"), NULL);
 189     listbox_add_item (l_group, LISTBOX_APPEND_AT_END, 0, _("<Unknown group>"), NULL);
 190
 191     /* get and put user names in the listbox */
 192     setpwent ();
 193     while ((l_pass = getpwent ())) {
 194         listbox_add_item (l_user, LISTBOX_APPEND_SORTED, 0, l_pass->pw_name, NULL);
 195     }
 196     endpwent ();
 197
 198     /* get and put group names in the listbox */
 199     setgrent ();
 200     while ((l_grp = getgrent ())) {
 201         listbox_add_item (l_group, LISTBOX_APPEND_SORTED, 0, l_grp->gr_name, NULL);
 202     }
 203     endgrent ();
 204
 205     /* add listboxes to the dialogs */
 206     add_widget (ch_dlg, l_group);
 207     add_widget (ch_dlg, l_user);
 208
 209     return ch_dlg;
 210 }
 211
 212 static void
 213 chown_done (void)
 214 {
 215     if (need_update)
 216         update_panels (UP_OPTIMIZE, UP_KEEPSEL);
 217     repaint_screen ();
 218 }
 219
 220 static void
 221 do_chown (uid_t u, gid_t g)
 222 {
 223     if (mc_chown (current_panel->dir.list [current_file].fname, u, g) == -1)
 224         message (D_ERROR, MSG_ERROR, _(" Cannot chown \"%s\" \n %s "),
 225              current_panel->dir.list [current_file].fname, unix_error_string (errno));
 226
 227     do_file_mark (current_panel, current_file, 0);
 228 }
 229
 230 static void
 231 apply_chowns (uid_t u, gid_t g)
 232 {
 233     char *fname;
 234
 235     need_update = end_chown = 1;
 236     do_chown (u,g);
 237
 238     do {
 239         fname = next_file ();
 240
 241         do_chown (u,g);
 242     } while (current_panel->marked);
 243 }
 244
 245 #define chown_label(n,txt) label_set_text (chown_label [n].l, txt)
 246
 247 void
 248 chown_cmd (void)
 249 {
 250     char *fname;
 251     struct stat sf_stat;
 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         listbox_select_entry (l_user, listbox_search_text (l_user, get_owner(sf_stat.st_uid)));
 273         listbox_select_entry (l_group, listbox_search_text (l_group, get_group(sf_stat.st_gid)));
 274
 275         chown_label (0, str_trunc (fname, 15));
 276         chown_label (1, str_trunc (get_owner (sf_stat.st_uid), 15));
 277         chown_label (2, str_trunc (get_group (sf_stat.st_gid), 15));
 278         size_trunc_len (buffer, 15, sf_stat.st_size, 0);
 279         chown_label (3, buffer);
 280         chown_label (4, string_perm (sf_stat.st_mode));
 281
 282         switch (run_dlg (ch_dlg)) {
 283         case B_CANCEL:
 284             end_chown = 1;
 285             break;
 286
 287         case B_SETUSR:
 288         {
 289             struct passwd *user;
 290             char *text;
 291
 292             listbox_get_current (l_user, &text, NULL);
 293             user = getpwnam (text);
 294             if (user){
 295                 new_user = user->pw_uid;
 296                 apply_chowns (new_user, new_group);
 297             }
 298             break;
 299         }
 300         case B_SETGRP:
 301         {
 302             struct group *grp;
 303             char *text;
 304
 305             listbox_get_current (l_group, &text, NULL);
 306             grp = getgrnam (text);
 307             if (grp){
 308                 new_group = grp->gr_gid;
 309                 apply_chowns (new_user, new_group);
 310             }
 311             break;
 312         }
 313         case B_SETALL:
 314         case B_ENTER:
 315         {
 316             struct group *grp;
 317             struct passwd *user;
 318             char *text;
 319
 320             listbox_get_current (l_group, &text, NULL);
 321             grp = getgrnam (text);
 322             if (grp)
 323                 new_group = grp->gr_gid;
 324             listbox_get_current (l_user, &text, NULL);
 325             user = getpwnam (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         } /* switch */
 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 }