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