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
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32 #include <unistd.h>
  33
  34 #include "global.h"
  35 #include "tty.h"
  36 #include "win.h"
  37 #include "color.h"
  38 #include "dialog.h"
  39 #include "widget.h"
  40 #include "strutil.h"
  41
  42 /* Needed for the extern declarations of integer parameters */
  43 #include "dir.h"
  44 #include "panel.h"              /* Needed for the externs */
  45 #include "chmod.h"
  46 #include "main.h"
  47 #include "chown.h"
  48 #include "wtools.h"             /* For init_box_colors */
  49
  50 #define UX              5
  51 #define UY              2
  52
  53 #define GX              27
  54 #define GY              2
  55
  56 #define BX              5
  57 #define BY              15
  58
  59 #define TX              50
  60 #define TY              2
  61
  62 #define BUTTONS         5
  63
  64 #define B_SETALL        B_USER
  65 #define B_SETUSR        (B_USER + 1)
  66 #define B_SETGRP        (B_USER + 2)
  67
  68 static int need_update, end_chown;
  69 static int current_file;
  70 static int single_set;
  71 static WListbox *l_user, *l_group;
  72
  73 static struct {
  74     int ret_cmd, flags, y, x;
  75     const char *text;
  76 } chown_but[BUTTONS] = {
  77     { B_CANCEL, NORMAL_BUTTON,  0, 53, N_("&Cancel") },
  78     { B_ENTER,  DEFPUSH_BUTTON, 0, 40, N_("&Set") },
  79     { B_SETUSR, NORMAL_BUTTON,  0, 25, N_("Set &users") },
  80     { B_SETGRP, NORMAL_BUTTON,  0, 11, N_("Set &groups") },
  81     { B_SETALL, NORMAL_BUTTON,  0, 0,  N_("Set &all") },
  82 };
  83
  84 #define LABELS 5
  85 static struct {
  86     int y, x;
  87     WLabel *l;
  88 } chown_label [LABELS] = {
  89 { TY+2, TX+2, NULL },
  90 { TY+4, TX+2, NULL },
  91 { TY+6, TX+2, NULL },
  92 { TY+8, TX+2, NULL },
  93 { TY+10,TX+2, NULL }
  94 };
  95
  96 static void
  97 chown_refresh (Dlg_head *h)
  98 {
  99     common_dialog_repaint (h);
 100
 101     attrset (COLOR_NORMAL);
 102
 103     draw_box (h, UY, UX, 12, 21);
 104     draw_box (h, GY, GX, 12, 21);
 105     draw_box (h, TY, TX, 12, 19);
 106
 107     dlg_move (h, TY + 1, TX + 1);
 108     addstr (_(" Name "));
 109     dlg_move (h, TY + 3, TX + 1);
 110     addstr (_(" Owner name "));
 111     dlg_move (h, TY + 5, TX + 1);
 112     addstr (_(" Group name "));
 113     dlg_move (h, TY + 7, TX + 1);
 114     addstr (_(" Size "));
 115     dlg_move (h, TY + 9, TX + 1);
 116     addstr (_(" Permission "));
 117
 118     attrset (COLOR_HOT_NORMAL);
 119     dlg_move (h, UY, UX + 1);
 120     addstr (_(" User name "));
 121     dlg_move (h, GY, GX + 1);
 122     addstr (_(" Group name "));
 123     dlg_move (h, TY, TX + 1);
 124     addstr (_(" File "));
 125 }
 126
 127 static char *
 128 next_file (void)
 129 {
 130     while (!current_panel->dir.list[current_file].f.marked)
 131         current_file++;
 132
 133     return current_panel->dir.list[current_file].fname;
 134 }
 135
 136 static cb_ret_t
 137 chown_callback (Dlg_head *h, dlg_msg_t msg, int parm)
 138 {
 139     switch (msg) {
 140     case DLG_DRAW:
 141         chown_refresh (h);
 142         return MSG_HANDLED;
 143
 144     default:
 145         return default_dlg_callback (h, msg, parm);
 146     }
 147 }
 148
 149 static Dlg_head *
 150 init_chown (void)
 151 {
 152     int i;
 153     struct passwd *l_pass;
 154     struct group *l_grp;
 155     Dlg_head *ch_dlg;
 156
 157     do_refresh ();
 158     end_chown = need_update = current_file = 0;
 159     single_set = (current_panel->marked < 2) ? 3 : 0;
 160
 161     ch_dlg =
 162         create_dlg (0, 0, 18, 74, dialog_colors, chown_callback, "[Chown]",
 163                     _(" Chown command "), DLG_CENTER | DLG_REVERSE);
 164
 165     for (i = 0; i < BUTTONS - single_set; i++)
 166         add_widget (ch_dlg,
 167                     button_new (BY + chown_but[i].y, BX + chown_but[i].x,
 168                                 chown_but[i].ret_cmd, chown_but[i].flags,
 169                                 _(chown_but[i].text), 0));
 170
 171     /* Add the widgets for the file information */
 172     for (i = 0; i < LABELS; i++) {
 173         chown_label[i].l =
 174             label_new (chown_label[i].y, chown_label[i].x, "");
 175         add_widget (ch_dlg, chown_label[i].l);
 176     }
 177
 178     /* get new listboxes */
 179     l_user = listbox_new (UY + 1, UX + 1, 10, 19, NULL);
 180     l_group = listbox_new (GY + 1, GX + 1, 10, 19, NULL);
 181
 182     /* add fields for unknown names (numbers) */
 183     listbox_add_item (l_user, 0, 0, _("<Unknown user>"), NULL);
 184     listbox_add_item (l_group, 0, 0, _("<Unknown group>"), NULL);
 185
 186     /* get and put user names in the listbox */
 187     setpwent ();
 188     while ((l_pass = getpwent ())) {
 189         listbox_add_item (l_user, LISTBOX_APPEND_SORTED, 0, l_pass->pw_name, NULL);
 190     }
 191     endpwent ();
 192
 193     /* get and put group names in the listbox */
 194     setgrent ();
 195     while ((l_grp = getgrent ())) {
 196         listbox_add_item (l_group, LISTBOX_APPEND_SORTED, 0, l_grp->gr_name, NULL);
 197     }
 198     endgrent ();
 199
 200     /* add listboxes to the dialogs */
 201     add_widget (ch_dlg, l_group);
 202     add_widget (ch_dlg, l_user);
 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 inline 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         fname = next_file ();
 235
 236         do_chown (u,g);
 237     } while (current_panel->marked);
 238 }
 239
 240 #define chown_label(n,txt) label_set_text (chown_label [n].l, txt)
 241
 242 void
 243 chown_cmd (void)
 244 {
 245     char *fname;
 246     struct stat sf_stat;
 247     WLEntry *fe;
 248     Dlg_head *ch_dlg;
 249     uid_t new_user;
 250     gid_t new_group;
 251     char  buffer [BUF_TINY];
 252
 253     do {                        /* do while any files remaining */
 254         ch_dlg = init_chown ();
 255         new_user = new_group = -1;
 256
 257         if (current_panel->marked)
 258             fname = next_file ();               /* next marked file */
 259         else
 260             fname = selection (current_panel)->fname;           /* single file */
 261
 262         if (mc_stat (fname, &sf_stat) != 0) {   /* get status of file */
 263             destroy_dlg (ch_dlg);
 264             break;
 265         }
 266
 267         /* select in listboxes */
 268         fe = listbox_search_text (l_user, get_owner(sf_stat.st_uid));
 269         if (fe)
 270             listbox_select_entry (l_user, fe);
 271
 272         fe = listbox_search_text (l_group, get_group(sf_stat.st_gid));
 273         if (fe)
 274             listbox_select_entry (l_group, fe);
 275
 276         chown_label (0, str_trunc (fname, 15));
 277         chown_label (1, str_trunc (get_owner (sf_stat.st_uid), 15));
 278         chown_label (2, str_trunc (get_group (sf_stat.st_gid), 15));
 279         size_trunc_len (buffer, 15, sf_stat.st_size, 0);
 280         chown_label (3, buffer);
 281         chown_label (4, string_perm (sf_stat.st_mode));
 282
 283         run_dlg (ch_dlg);
 284
 285         switch (ch_dlg->ret_value) {
 286         case B_CANCEL:
 287             end_chown = 1;
 288             break;
 289
 290         case B_SETUSR:
 291         {
 292             struct passwd *user;
 293
 294             user = getpwnam (l_user->current->text);
 295             if (user){
 296                 new_user = user->pw_uid;
 297                 apply_chowns (new_user, new_group);
 298             }
 299             break;
 300         }
 301         case B_SETGRP:
 302         {
 303             struct group *grp;
 304
 305             grp = getgrnam (l_group->current->text);
 306             if (grp){
 307                 new_group = grp->gr_gid;
 308                 apply_chowns (new_user, new_group);
 309             }
 310             break;
 311         }
 312         case B_SETALL:
 313         case B_ENTER:
 314         {
 315             struct group *grp;
 316             struct passwd *user;
 317
 318             grp = getgrnam (l_group->current->text);
 319             if (grp)
 320                 new_group = grp->gr_gid;
 321             user = getpwnam (l_user->current->text);
 322             if (user)
 323                 new_user = user->pw_uid;
 324             if (ch_dlg->ret_value==B_ENTER) {
 325                 need_update = 1;
 326                 if (mc_chown (fname, new_user, new_group) == -1)
 327                     message (D_ERROR, MSG_ERROR, _(" Cannot chown \"%s\" \n %s "),
 328                          fname, unix_error_string (errno));
 329             } else
 330                 apply_chowns (new_user, new_group);
 331             break;
 332         }
 333         }
 334
 335         if (current_panel->marked && ch_dlg->ret_value != B_CANCEL){
 336             do_file_mark (current_panel, current_file, 0);
 337             need_update = 1;
 338         }
 339         destroy_dlg (ch_dlg);
 340     } while (current_panel->marked && !end_chown);
 341
 342     chown_done ();
 343 }