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, dlg_msg_t msg, int parm)
 141 {
 142     switch (msg) {
 143     case DLG_DRAW:
 144         chown_refresh (h);
 145         return MSG_HANDLED;
 146
 147     default:
 148         return default_dlg_callback (h, msg, parm);
 149     }
 150 }
 151
 152 static Dlg_head *
 153 init_chown (void)
 154 {
 155     int i;
 156     struct passwd *l_pass;
 157     struct group *l_grp;
 158     Dlg_head *ch_dlg;
 159
 160     do_refresh ();
 161     end_chown = need_update = current_file = 0;
 162     single_set = (current_panel->marked < 2) ? 3 : 0;
 163
 164     ch_dlg =
 165         create_dlg (0, 0, 18, 74, dialog_colors, chown_callback, "[Chown]",
 166                     _(" Chown command "), DLG_CENTER | DLG_REVERSE);
 167
 168     for (i = 0; i < BUTTONS - single_set; i++)
 169         add_widget (ch_dlg,
 170                     button_new (BY + chown_but[i].y, BX + chown_but[i].x,
 171                                 chown_but[i].ret_cmd, chown_but[i].flags,
 172                                 _(chown_but[i].text), 0));
 173
 174     /* Add the widgets for the file information */
 175     for (i = 0; i < LABELS; i++) {
 176         chown_label[i].l =
 177             label_new (chown_label[i].y, chown_label[i].x, "");
 178         add_widget (ch_dlg, chown_label[i].l);
 179     }
 180
 181     /* get new listboxes */
 182     l_user = listbox_new (UY + 1, UX + 1, 10, 19, NULL);
 183     l_group = listbox_new (GY + 1, GX + 1, 10, 19, NULL);
 184
 185     /* add fields for unknown names (numbers) */
 186     listbox_add_item (l_user, 0, 0, _("<Unknown user>"), NULL);
 187     listbox_add_item (l_group, 0, 0, _("<Unknown group>"), NULL);
 188
 189     /* get and put user names in the listbox */
 190     setpwent ();
 191     while ((l_pass = getpwent ())) {
 192         listbox_add_item (l_user, LISTBOX_APPEND_SORTED, 0, l_pass->pw_name, NULL);
 193     }
 194     endpwent ();
 195
 196     /* get and put group names in the listbox */
 197     setgrent ();
 198     while ((l_grp = getgrent ())) {
 199         listbox_add_item (l_group, LISTBOX_APPEND_SORTED, 0, l_grp->gr_name, NULL);
 200     }
 201     endgrent ();
 202
 203     /* add listboxes to the dialogs */
 204     add_widget (ch_dlg, l_group);
 205     add_widget (ch_dlg, l_user);
 206
 207     return ch_dlg;
 208 }
 209
 210 static void
 211 chown_done (void)
 212 {
 213     if (need_update)
 214         update_panels (UP_OPTIMIZE, UP_KEEPSEL);
 215     repaint_screen ();
 216 }
 217
 218 static void
 219 do_chown (uid_t u, gid_t g)
 220 {
 221     if (mc_chown (current_panel->dir.list [current_file].fname, u, g) == -1)
 222         message (D_ERROR, MSG_ERROR, _(" Cannot chown \"%s\" \n %s "),
 223              current_panel->dir.list [current_file].fname, unix_error_string (errno));
 224
 225     do_file_mark (current_panel, current_file, 0);
 226 }
 227
 228 static void
 229 apply_chowns (uid_t u, gid_t g)
 230 {
 231     char *fname;
 232
 233     need_update = end_chown = 1;
 234     do_chown (u,g);
 235
 236     do {
 237         fname = next_file ();
 238
 239         do_chown (u,g);
 240     } while (current_panel->marked);
 241 }
 242
 243 #define chown_label(n,txt) label_set_text (chown_label [n].l, txt)
 244
 245 void
 246 chown_cmd (void)
 247 {
 248     char *fname;
 249     struct stat sf_stat;
 250     WLEntry *fe;
 251     Dlg_head *ch_dlg;
 252     uid_t new_user;
 253     gid_t new_group;
 254     char  buffer [BUF_TINY];
 255
 256     do {                        /* do while any files remaining */
 257         ch_dlg = init_chown ();
 258         new_user = new_group = -1;
 259
 260         if (current_panel->marked)
 261             fname = next_file ();               /* next marked file */
 262         else
 263             fname = selection (current_panel)->fname;           /* single file */
 264
 265         if (mc_stat (fname, &sf_stat) != 0) {   /* get status of file */
 266             destroy_dlg (ch_dlg);
 267             break;
 268         }
 269
 270         /* select in listboxes */
 271         fe = listbox_search_text (l_user, get_owner(sf_stat.st_uid));
 272         if (fe)
 273             listbox_select_entry (l_user, fe);
 274
 275         fe = listbox_search_text (l_group, get_group(sf_stat.st_gid));
 276         if (fe)
 277             listbox_select_entry (l_group, fe);
 278
 279         chown_label (0, str_trunc (fname, 15));
 280         chown_label (1, str_trunc (get_owner (sf_stat.st_uid), 15));
 281         chown_label (2, str_trunc (get_group (sf_stat.st_gid), 15));
 282         size_trunc_len (buffer, 15, sf_stat.st_size, 0);
 283         chown_label (3, buffer);
 284         chown_label (4, string_perm (sf_stat.st_mode));
 285
 286         run_dlg (ch_dlg);
 287
 288         switch (ch_dlg->ret_value) {
 289         case B_CANCEL:
 290             end_chown = 1;
 291             break;
 292
 293         case B_SETUSR:
 294         {
 295             struct passwd *user;
 296
 297             user = getpwnam (l_user->current->text);
 298             if (user){
 299                 new_user = user->pw_uid;
 300                 apply_chowns (new_user, new_group);
 301             }
 302             break;
 303         }
 304         case B_SETGRP:
 305         {
 306             struct group *grp;
 307
 308             grp = getgrnam (l_group->current->text);
 309             if (grp){
 310                 new_group = grp->gr_gid;
 311                 apply_chowns (new_user, new_group);
 312             }
 313             break;
 314         }
 315         case B_SETALL:
 316         case B_ENTER:
 317         {
 318             struct group *grp;
 319             struct passwd *user;
 320
 321             grp = getgrnam (l_group->current->text);
 322             if (grp)
 323                 new_group = grp->gr_gid;
 324             user = getpwnam (l_user->current->text);
 325             if (user)
 326                 new_user = user->pw_uid;
 327             if (ch_dlg->ret_value==B_ENTER) {
 328                 need_update = 1;
 329                 if (mc_chown (fname, new_user, new_group) == -1)
 330                     message (D_ERROR, MSG_ERROR, _(" Cannot chown \"%s\" \n %s "),
 331                          fname, unix_error_string (errno));
 332             } else
 333                 apply_chowns (new_user, new_group);
 334             break;
 335         }
 336         }
 337
 338         if (current_panel->marked && ch_dlg->ret_value != B_CANCEL){
 339             do_file_mark (current_panel, current_file, 0);
 340             need_update = 1;
 341         }
 342         destroy_dlg (ch_dlg);
 343     } while (current_panel->marked && !end_chown);
 344
 345     chown_done ();
 346 }