src/chown.c

   1 /* Chown command -- for the Midnight Commander
   2    Copyright (C) 1994 Radek Doulik
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software
  16    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18
  19 #include <config.h>
  20 #include <string.h>
  21 #include <stdio.h>
  22 #include <errno.h>      /* For errno on SunOS systems         */
  23
  24 #include <sys/types.h>
  25 #include <sys/param.h>
  26 #include <sys/stat.h>
  27 #include <grp.h>
  28 #include <pwd.h>
  29 #ifdef HAVE_UNISTD_H
  30 #   include <unistd.h>
  31 #endif
  32
  33 #include "tty.h"
  34 #include "global.h"
  35 #include "win.h"
  36 #include "color.h"
  37 #include "dlg.h"
  38 #include "widget.h"
  39 #include "dialog.h"     /* For do_refresh() */
  40
  41 /* Needed for the extern declarations of integer parameters */
  42 #include "dir.h"
  43 #include "panel.h"              /* Needed for the externs */
  44 #include "file.h"
  45 #include "chmod.h"
  46 #include "main.h"
  47 #include "chown.h"
  48 #include "wtools.h"             /* For init_box_colors */
  49 #include "../vfs/vfs.h"
  50
  51 #define UX              5
  52 #define UY              2
  53
  54 #define GX              27
  55 #define GY              2
  56
  57 #define BX              5
  58 #define BY              15
  59
  60 #define TX              50
  61 #define TY              2
  62
  63 #define BUTTONS         5
  64
  65 #define B_SETALL        B_USER
  66 #define B_SETUSR        B_USER + 1
  67 #define B_SETGRP        B_USER + 2
  68
  69 /* struct stat *sf_stat; */
  70 static int need_update, end_chown;
  71 static int current_file;
  72 static int single_set;
  73 static WListbox *l_user, *l_group;
  74
  75 static struct {
  76     int ret_cmd, flags, y, x;
  77     char *text;
  78 } chown_but[BUTTONS] = {
  79     { B_CANCEL, NORMAL_BUTTON,  0, 53, N_("&Cancel") },
  80     { B_ENTER,  DEFPUSH_BUTTON, 0, 40, N_("&Set") },
  81     { B_SETUSR, NORMAL_BUTTON,  0, 25, N_("Set &users") },
  82     { B_SETGRP, NORMAL_BUTTON,  0, 11, N_("Set &groups") },
  83     { B_SETALL, NORMAL_BUTTON,  0, 0,  N_("Set &all") },
  84 };
  85
  86 #define LABELS 5
  87 static struct {
  88     int y, x;
  89     WLabel *l;
  90 } chown_label [LABELS] = {
  91 { TY+2, TX+2 },
  92 { TY+4, TX+2 },
  93 { TY+6, TX+2 },
  94 { TY+8, TX+2 },
  95 { TY+10,TX+2 }
  96 };
  97
  98 #ifndef HAVE_X
  99 static void
 100 chown_refresh (void)
 101 {
 102     attrset (COLOR_NORMAL);
 103     dlg_erase (ch_dlg);
 104
 105     draw_box (ch_dlg, 1, 2, 16, 70);
 106     draw_box (ch_dlg, UY, UX, 12, 21);
 107     draw_box (ch_dlg, GY, GX, 12, 21);
 108     draw_box (ch_dlg, TY, TX, 12, 19);
 109
 110     attrset (COLOR_NORMAL);
 111     dlg_move (ch_dlg, TY + 1, TX + 1);
 112     addstr (_(" Name "));
 113     dlg_move (ch_dlg, TY + 3, TX + 1);
 114     addstr (_(" Owner name "));
 115     dlg_move (ch_dlg, TY + 5, TX + 1);
 116     addstr (_(" Group name "));
 117     dlg_move (ch_dlg, TY + 7, TX + 1);
 118     addstr (_(" Size "));
 119     dlg_move (ch_dlg, TY + 9, TX + 1);
 120     addstr (_(" Permission "));
 121
 122     attrset (COLOR_HOT_NORMAL);
 123     dlg_move (ch_dlg, 1, 28);
 124     addstr (_(" Chown command "));
 125     dlg_move (ch_dlg, UY, UX + 1);
 126     addstr (_(" User name "));
 127     dlg_move (ch_dlg, GY, GX + 1);
 128     addstr (_(" Group name "));
 129     dlg_move (ch_dlg, TY, TX + 1);
 130     addstr (_(" File "));
 131 }
 132 #endif
 133
 134 static char *
 135 next_file (void)
 136 {
 137     while (!cpanel->dir.list[current_file].f.marked)
 138         current_file++;
 139
 140     return cpanel->dir.list[current_file].fname;
 141 }
 142
 143 static int
 144 chown_callback (Dlg_head * h, int Par, int Msg)
 145 {
 146     switch (Msg) {
 147 #ifndef HAVE_X
 148     case DLG_DRAW:
 149       chown_refresh ();
 150       break;
 151 #endif
 152     }
 153     return 0;
 154 }
 155
 156 static int
 157 l_call (void *data)
 158 {
 159     return 1;
 160 }
 161
 162 static void
 163 init_chown (void)
 164 {
 165     int i;
 166     struct passwd *l_pass;
 167     struct group *l_grp;
 168
 169     do_refresh ();
 170     end_chown = need_update = current_file = 0;
 171     single_set = (cpanel->marked < 2) ? 3 : 0;
 172
 173     ch_dlg = create_dlg (0, 0, 18, 74, dialog_colors, chown_callback,
 174                          "[Chown]", "chown", DLG_CENTER);
 175
 176 #define XTRACT(i) BY+chown_but[i].y, BX+chown_but[i].x, chown_but[i].ret_cmd, chown_but[i].flags, _(chown_but[i].text), 0, 0, NULL
 177
 178     for (i = 0; i < BUTTONS-single_set; i++)
 179         add_widget (ch_dlg, button_new (XTRACT (i)));
 180
 181     /* Add the widgets for the file information */
 182 #define LX(i) chown_label [i].y, chown_label [i].x, "", NULL
 183     for (i = 0; i < LABELS; i++){
 184         chown_label [i].l = label_new (LX (i));
 185         add_widget (ch_dlg, chown_label [i].l);
 186     }
 187
 188     /* get new listboxes */
 189     l_user = listbox_new (UY + 1, UX + 1, 19, 10, 0, l_call, NULL);
 190     l_group = listbox_new (GY + 1, GX + 1, 19, 10, 0, l_call, NULL);
 191
 192     listbox_add_item (l_user, 0, 0, _("<Unknown user>"), NULL); /* add fields for unknown names (numbers) */
 193     listbox_add_item (l_group, 0, 0, _("<Unknown group>"), NULL);
 194
 195     setpwent ();                /* get and put user names in the listbox */
 196     while ((l_pass = getpwent ())) {
 197         listbox_add_item (l_user, 0, 0, l_pass->pw_name, NULL);
 198     }
 199     endpwent ();
 200
 201     setgrent ();                /* get and put group names in the listbox */
 202     while ((l_grp = getgrent ())) {
 203         listbox_add_item (l_group, 0, 0, l_grp->gr_name, NULL);
 204     }
 205     endgrent ();
 206
 207     add_widget (ch_dlg, l_group);
 208     add_widget (ch_dlg, l_user);        /* add listboxes to the dialogs */
 209 }
 210
 211 static void
 212 chown_done (void)
 213 {
 214     if (need_update)
 215         update_panels (UP_OPTIMIZE, UP_KEEPSEL);
 216     repaint_screen ();
 217 }
 218
 219 static inline void
 220 do_chown (uid_t u, gid_t g)
 221 {
 222     if (mc_chown (cpanel->dir.list [current_file].fname, u, g) == -1)
 223         message (1, MSG_ERROR, _(" Couldn't chown \"%s\" \n %s "),
 224              cpanel->dir.list [current_file].fname, unix_error_string (errno));
 225
 226     do_file_mark (cpanel, current_file, 0);
 227 }
 228
 229 static void
 230 apply_chowns (uid_t u, gid_t g)
 231 {
 232     char *fname;
 233
 234     need_update = end_chown = 1;
 235     do_chown (u,g);
 236
 237     do {
 238         fname = next_file ();
 239
 240         do_chown (u,g);
 241     } while (cpanel->marked);
 242 }
 243
 244 #define chown_label(n,txt) label_set_text (chown_label [n].l, txt)
 245
 246 void
 247 chown_cmd (void)
 248 {
 249     char *fname;
 250     struct stat sf_stat;
 251     WLEntry *fe;
 252     uid_t new_user;
 253     gid_t new_group;
 254     char  buffer [BUF_TINY];
 255
 256 #if 0
 257     /* Please no */
 258     if (!vfs_current_is_local ()) {
 259         if (vfs_current_is_extfs ()) {
 260             message (1, _(" Oops... "),
 261                      _(" I can't run the Chown command on an extfs "));
 262             return;
 263         } else if (vfs_current_is_tarfs ()) {
 264             message (1, _(" Oops... "),
 265                      _(" I can't run the Chown command on a tarfs "));
 266             return;
 267         }
 268     }
 269 #endif
 270
 271     do {                        /* do while any files remaining */
 272         init_chown ();
 273         new_user = new_group = -1;
 274
 275         if (cpanel->marked)
 276             fname = next_file ();               /* next marked file */
 277         else
 278             fname = selection (cpanel)->fname;          /* single file */
 279
 280         if (!stat_file (fname, &sf_stat)){      /* get status of file */
 281             destroy_dlg (ch_dlg);
 282             break;
 283         }
 284
 285         /* select in listboxes */
 286         fe = listbox_search_text (l_user, get_owner(sf_stat.st_uid));
 287         if (fe)
 288             listbox_select_entry (l_user, fe);
 289
 290         fe = listbox_search_text (l_group, get_group(sf_stat.st_gid));
 291         if (fe)
 292             listbox_select_entry (l_group, fe);
 293
 294         chown_label (0, name_trunc (fname, 15));
 295         chown_label (1, name_trunc (get_owner (sf_stat.st_uid), 15));
 296         chown_label (2, name_trunc (get_group (sf_stat.st_gid), 15));
 297         g_snprintf (buffer, sizeof (buffer), "%d", c_fsize);
 298         chown_label (3, buffer);
 299         chown_label (4, string_perm (sf_stat.st_mode));
 300
 301         run_dlg (ch_dlg);
 302
 303         switch (ch_dlg->ret_value) {
 304         case B_CANCEL:
 305             end_chown = 1;
 306             break;
 307
 308         case B_SETUSR:
 309         {
 310             struct passwd *user;
 311
 312             user = getpwnam (l_user->current->text);
 313             if (user){
 314                 new_user = user->pw_uid;
 315                 apply_chowns (new_user, new_group);
 316             }
 317             break;
 318         }
 319         case B_SETGRP:
 320         {
 321             struct group *grp;
 322
 323             grp = getgrnam (l_group->current->text);
 324             if (grp){
 325                 new_group = grp->gr_gid;
 326                 apply_chowns (new_user, new_group);
 327             }
 328             break;
 329         }
 330         case B_SETALL:
 331         case B_ENTER:
 332         {
 333             struct group *grp;
 334             struct passwd *user;
 335
 336             grp = getgrnam (l_group->current->text);
 337             if (grp)
 338                 new_group = grp->gr_gid;
 339             user = getpwnam (l_user->current->text);
 340             if (user)
 341                 new_user = user->pw_uid;
 342             if (ch_dlg->ret_value==B_ENTER) {
 343                 need_update = 1;
 344                 if (mc_chown (fname, new_user, new_group) == -1)
 345                     message (1, MSG_ERROR, _(" Couldn't chown \"%s\" \n %s "),
 346                          fname, unix_error_string (errno));
 347             } else
 348                 apply_chowns (new_user, new_group);
 349             break;
 350         }
 351         }
 352
 353         if (cpanel->marked && ch_dlg->ret_value != B_CANCEL){
 354             do_file_mark (cpanel, current_file, 0);
 355             need_update = 1;
 356         }
 357         destroy_dlg (ch_dlg);
 358     } while (cpanel->marked && !end_chown);
 359
 360     chown_done ();
 361 }