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 #include <config.h>
  21
  22 #include <errno.h>
  23 #include <stdio.h>
  24 #include <string.h>
  25
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <unistd.h>
  29
  30 #include "global.h"
  31 #include "tty.h"
  32 #include "win.h"
  33 #include "color.h"
  34 #include "dialog.h"
  35 #include "widget.h"
  36
  37 /* Needed for the extern declarations of integer parameters */
  38 #include "dir.h"
  39 #include "panel.h"              /* Needed for the externs */
  40 #include "chmod.h"
  41 #include "main.h"
  42 #include "chown.h"
  43 #include "wtools.h"             /* For init_box_colors */
  44
  45 #define UX              5
  46 #define UY              2
  47
  48 #define GX              27
  49 #define GY              2
  50
  51 #define BX              5
  52 #define BY              15
  53
  54 #define TX              50
  55 #define TY              2
  56
  57 #define BUTTONS         5
  58
  59 #define B_SETALL        B_USER
  60 #define B_SETUSR        (B_USER + 1)
  61 #define B_SETGRP        (B_USER + 2)
  62
  63 static int need_update, end_chown;
  64 static int current_file;
  65 static int single_set;
  66 static WListbox *l_user, *l_group;
  67
  68 static struct {
  69     int ret_cmd, flags, y, x;
  70     const char *text;
  71 } chown_but[BUTTONS] = {
  72     { B_CANCEL, NORMAL_BUTTON,  0, 53, N_("&Cancel") },
  73     { B_ENTER,  DEFPUSH_BUTTON, 0, 40, N_("&Set") },
  74     { B_SETUSR, NORMAL_BUTTON,  0, 25, N_("Set &users") },
  75     { B_SETGRP, NORMAL_BUTTON,  0, 11, N_("Set &groups") },
  76     { B_SETALL, NORMAL_BUTTON,  0, 0,  N_("Set &all") },
  77 };
  78
  79 #define LABELS 5
  80 static struct {
  81     int y, x;
  82     WLabel *l;
  83 } chown_label [LABELS] = {
  84 { TY+2, TX+2, NULL },
  85 { TY+4, TX+2, NULL },
  86 { TY+6, TX+2, NULL },
  87 { TY+8, TX+2, NULL },
  88 { TY+10,TX+2, NULL }
  89 };
  90
  91 static void
  92 chown_refresh (Dlg_head *h)
  93 {
  94     common_dialog_repaint (h);
  95
  96     attrset (COLOR_NORMAL);
  97
  98     draw_box (h, UY, UX, 12, 21);
  99     draw_box (h, GY, GX, 12, 21);
 100     draw_box (h, TY, TX, 12, 19);
 101
 102     dlg_move (h, TY + 1, TX + 1);
 103     addstr (_(" Name "));
 104     dlg_move (h, TY + 3, TX + 1);
 105     addstr (_(" Owner name "));
 106     dlg_move (h, TY + 5, TX + 1);
 107     addstr (_(" Group name "));
 108     dlg_move (h, TY + 7, TX + 1);
 109     addstr (_(" Size "));
 110     dlg_move (h, TY + 9, TX + 1);
 111     addstr (_(" Permission "));
 112
 113     attrset (COLOR_HOT_NORMAL);
 114     dlg_move (h, UY, UX + 1);
 115     addstr (_(" User name "));
 116     dlg_move (h, GY, GX + 1);
 117     addstr (_(" Group name "));
 118     dlg_move (h, TY, TX + 1);
 119     addstr (_(" File "));
 120 }
 121
 122 static char *
 123 next_file (void)
 124 {
 125     while (!current_panel->dir.list[current_file].f.marked)
 126         current_file++;
 127
 128     return current_panel->dir.list[current_file].fname;
 129 }
 130
 131 static cb_ret_t
 132 chown_callback (Dlg_head *h, dlg_msg_t msg, int parm)
 133 {
 134     switch (msg) {
 135     case DLG_DRAW:
 136         chown_refresh (h);
 137         return MSG_HANDLED;
 138
 139     default:
 140         return default_dlg_callback (h, msg, parm);
 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 (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,
 164                                 _(chown_but[i].text), 0));
 165
 166     /* Add the widgets for the file information */
 167     for (i = 0; i < LABELS; i++) {
 168         chown_label[i].l =
 169             label_new (chown_label[i].y, chown_label[i].x, "");
 170         add_widget (ch_dlg, chown_label[i].l);
 171     }
 172
 173     /* get new listboxes */
 174     l_user = listbox_new (UY + 1, UX + 1, 19, 10, NULL);
 175     l_group = listbox_new (GY + 1, GX + 1, 19, 10, NULL);
 176
 177     /* add fields for unknown names (numbers) */
 178     listbox_add_item (l_user, 0, 0, _("<Unknown user>"), NULL);
 179     listbox_add_item (l_group, 0, 0, _("<Unknown group>"), NULL);
 180
 181     /* get and put user names in the listbox */
 182     setpwent ();
 183     while ((l_pass = getpwent ())) {
 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 ())) {
 191         listbox_add_item (l_group, LISTBOX_APPEND_SORTED, 0, l_grp->gr_name, NULL);
 192     }
 193     endgrent ();
 194
 195     /* add listboxes to the dialogs */
 196     add_widget (ch_dlg, l_group);
 197     add_widget (ch_dlg, l_user);
 198
 199     return ch_dlg;
 200 }
 201
 202 static void
 203 chown_done (void)
 204 {
 205     if (need_update)
 206         update_panels (UP_OPTIMIZE, UP_KEEPSEL);
 207     repaint_screen ();
 208 }
 209
 210 static inline void
 211 do_chown (uid_t u, gid_t g)
 212 {
 213     if (mc_chown (current_panel->dir.list [current_file].fname, u, g) == -1)
 214         message (D_ERROR, MSG_ERROR, _(" Cannot chown \"%s\" \n %s "),
 215              current_panel->dir.list [current_file].fname, unix_error_string (errno));
 216
 217     do_file_mark (current_panel, current_file, 0);
 218 }
 219
 220 static void
 221 apply_chowns (uid_t u, gid_t g)
 222 {
 223     char *fname;
 224
 225     need_update = end_chown = 1;
 226     do_chown (u,g);
 227
 228     do {
 229         fname = next_file ();
 230
 231         do_chown (u,g);
 232     } while (current_panel->marked);
 233 }
 234
 235 #define chown_label(n,txt) label_set_text (chown_label [n].l, txt)
 236
 237 void
 238 chown_cmd (void)
 239 {
 240     char *fname;
 241     struct stat sf_stat;
 242     WLEntry *fe;
 243     Dlg_head *ch_dlg;
 244     uid_t new_user;
 245     gid_t new_group;
 246     char  buffer [BUF_TINY];
 247
 248     do {                        /* do while any files remaining */
 249         ch_dlg = init_chown ();
 250         new_user = new_group = -1;
 251
 252         if (current_panel->marked)
 253             fname = next_file ();               /* next marked file */
 254         else
 255             fname = selection (current_panel)->fname;           /* single file */
 256
 257         if (mc_stat (fname, &sf_stat) != 0) {   /* get status of file */
 258             destroy_dlg (ch_dlg);
 259             break;
 260         }
 261
 262         /* select in listboxes */
 263         fe = listbox_search_text (l_user, get_owner(sf_stat.st_uid));
 264         if (fe)
 265             listbox_select_entry (l_user, fe);
 266
 267         fe = listbox_search_text (l_group, get_group(sf_stat.st_gid));
 268         if (fe)
 269             listbox_select_entry (l_group, fe);
 270
 271         chown_label (0, name_trunc (fname, 15));
 272         chown_label (1, name_trunc (get_owner (sf_stat.st_uid), 15));
 273         chown_label (2, name_trunc (get_group (sf_stat.st_gid), 15));
 274         size_trunc_len (buffer, 15, sf_stat.st_size, 0);
 275         chown_label (3, buffer);
 276         chown_label (4, string_perm (sf_stat.st_mode));
 277
 278         run_dlg (ch_dlg);
 279
 280         switch (ch_dlg->ret_value) {
 281         case B_CANCEL:
 282             end_chown = 1;
 283             break;
 284
 285         case B_SETUSR:
 286         {
 287             struct passwd *user;
 288
 289             user = getpwnam (l_user->current->text);
 290             if (user){
 291                 new_user = user->pw_uid;
 292                 apply_chowns (new_user, new_group);
 293             }
 294             break;
 295         }
 296         case B_SETGRP:
 297         {
 298             struct group *grp;
 299
 300             grp = getgrnam (l_group->current->text);
 301             if (grp){
 302                 new_group = grp->gr_gid;
 303                 apply_chowns (new_user, new_group);
 304             }
 305             break;
 306         }
 307         case B_SETALL:
 308         case B_ENTER:
 309         {
 310             struct group *grp;
 311             struct passwd *user;
 312
 313             grp = getgrnam (l_group->current->text);
 314             if (grp)
 315                 new_group = grp->gr_gid;
 316             user = getpwnam (l_user->current->text);
 317             if (user)
 318                 new_user = user->pw_uid;
 319             if (ch_dlg->ret_value==B_ENTER) {
 320                 need_update = 1;
 321                 if (mc_chown (fname, new_user, new_group) == -1)
 322                     message (D_ERROR, MSG_ERROR, _(" Cannot chown \"%s\" \n %s "),
 323                          fname, unix_error_string (errno));
 324             } else
 325                 apply_chowns (new_user, new_group);
 326             break;
 327         }
 328         }
 329
 330         if (current_panel->marked && ch_dlg->ret_value != B_CANCEL){
 331             do_file_mark (current_panel, current_file, 0);
 332             need_update = 1;
 333         }
 334         destroy_dlg (ch_dlg);
 335     } while (current_panel->marked && !end_chown);
 336
 337     chown_done ();
 338 }