src/chmod.c

   1 /* Chmod 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 /* Needed for the extern declarations of integer parameters */
  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 #include "tty.h"
  33 #include "global.h"
  34 #include "win.h"
  35 #include "color.h"
  36 #include "dlg.h"
  37 #include "widget.h"
  38 #include "dialog.h"     /* For do_refresh() */
  39
  40 #include "dir.h"
  41 #include "panel.h"              /* Needed for the externs */
  42 #include "file.h"
  43 #include "main.h"
  44 #include "chmod.h"
  45 #include "achown.h"
  46 #include "chown.h"
  47 #include "../vfs/vfs.h"
  48
  49 #ifdef HAVE_TK
  50 #   include "tkmain.h"
  51 #endif
  52
  53 static int single_set;
  54 struct Dlg_head *ch_dlg;
  55
  56 #define PX              5
  57 #define PY              2
  58
  59 #define FX              40
  60 #define FY              2
  61
  62 #define BX              6
  63 #define BY              17
  64
  65 #define TX              40
  66 #define TY              12
  67
  68 #define PERMISSIONS     12
  69 #define BUTTONS         6
  70
  71 #define B_MARKED        B_USER
  72 #define B_ALL           B_USER+1
  73 #define B_SETMRK        B_USER+2
  74 #define B_CLRMRK        B_USER+3
  75
  76 int mode_change, need_update;
  77 int c_file, end_chmod;
  78
  79 umode_t and_mask, or_mask, c_stat;
  80 char *c_fname, *c_fown, *c_fgrp, *c_fperm;
  81 int c_fsize;
  82
  83 static WLabel *statl;
  84 static int normal_color;
  85 static int title_color;
  86 static int selection_color;
  87
  88 struct {
  89     mode_t mode;
  90     char *text;
  91     int selected;
  92     WCheck *check;
  93 } check_perm[PERMISSIONS] =
  94 {
  95     { S_IXOTH, N_("execute/search by others"), 0, 0, },
  96     { S_IWOTH, N_("write by others"), 0, 0, },
  97     { S_IROTH, N_("read by others"), 0, 0, },
  98     { S_IXGRP, N_("execute/search by group"), 0, 0, },
  99     { S_IWGRP, N_("write by group"), 0, 0, },
 100     { S_IRGRP, N_("read by group"), 0, 0, },
 101     { S_IXUSR, N_("execute/search by owner"), 0, 0, },
 102     { S_IWUSR, N_("write by owner"), 0, 0, },
 103     { S_IRUSR, N_("read by owner"), 0, 0, },
 104     { S_ISVTX, N_("sticky bit"), 0, 0, },
 105     { S_ISGID, N_("set group ID on execution"), 0, 0, },
 106     { S_ISUID, N_("set user ID on execution"), 0, 0, },
 107 };
 108
 109 struct {
 110     int ret_cmd, flags, y, x;
 111     char *text;
 112 } chmod_but[BUTTONS] =
 113 {
 114     { B_CANCEL, NORMAL_BUTTON,  2, 33, N_("&Cancel") },
 115     { B_ENTER,  DEFPUSH_BUTTON, 2, 17, N_("&Set") },
 116     { B_CLRMRK, NORMAL_BUTTON,  0, 42, N_("C&lear marked") },
 117     { B_SETMRK, NORMAL_BUTTON,  0, 27, N_("S&et marked") },
 118     { B_MARKED, NORMAL_BUTTON,  0, 12, N_("&Marked all") },
 119     { B_ALL,    NORMAL_BUTTON,  0, 0,  N_("Set &all") },
 120 };
 121
 122 #ifdef HAVE_X
 123 static void chmod_toggle_select (void)
 124 {
 125 }
 126
 127 #else
 128 static void chmod_toggle_select (void)
 129 {
 130     int Id = ch_dlg->current->dlg_id - BUTTONS + single_set * 2;
 131
 132     attrset (normal_color);
 133     check_perm[Id].selected ^= 1;
 134
 135     dlg_move (ch_dlg, PY + PERMISSIONS - Id, PX + 1);
 136     addch ((check_perm[Id].selected) ? '*' : ' ');
 137     dlg_move (ch_dlg, PY + PERMISSIONS - Id, PX + 3);
 138 }
 139
 140 static void chmod_refresh (void)
 141 {
 142     attrset (COLOR_NORMAL);
 143     dlg_erase (ch_dlg);
 144
 145     draw_box (ch_dlg, 1, 2, 20 - single_set, 66);
 146     draw_box (ch_dlg, PY, PX, PERMISSIONS + 2, 33);
 147     draw_box (ch_dlg, FY, FX, 10, 25);
 148
 149     dlg_move (ch_dlg, FY + 1, FX + 2);
 150     addstr (_("Name"));
 151     dlg_move (ch_dlg, FY + 3, FX + 2);
 152     addstr (_("Permissions (Octal)"));
 153     dlg_move (ch_dlg, FY + 5, FX + 2);
 154     addstr (_("Owner name"));
 155     dlg_move (ch_dlg, FY + 7, FX + 2);
 156     addstr (_("Group name"));
 157
 158     attrset (title_color);
 159     dlg_move (ch_dlg, 1, 28);
 160     addstr (_(" Chmod command "));
 161     dlg_move (ch_dlg, PY, PX + 1);
 162     addstr (_(" Permission "));
 163     dlg_move (ch_dlg, FY, FX + 1);
 164     addstr (_(" File "));
 165
 166     attrset (selection_color);
 167
 168     dlg_move (ch_dlg, TY, TX);
 169     addstr (_("Use SPACE to change"));
 170     dlg_move (ch_dlg, TY + 1, TX);
 171     addstr (_("an option, ARROW KEYS"));
 172     dlg_move (ch_dlg, TY + 2, TX);
 173     addstr (_("to move between options"));
 174     dlg_move (ch_dlg, TY + 3, TX);
 175     addstr (_("and T or INS to mark"));
 176 }
 177 #endif
 178
 179 static int chmod_callback (Dlg_head *h, int Par, int Msg)
 180 {
 181     char buffer [BUF_TINY];
 182
 183     switch (Msg) {
 184     case DLG_ACTION:
 185         if (Par >= BUTTONS - single_set * 2){
 186             c_stat ^= check_perm[Par - BUTTONS + single_set * 2].mode;
 187             g_snprintf (buffer, sizeof (buffer), "%o", c_stat);
 188             label_set_text (statl, buffer);
 189             chmod_toggle_select ();
 190             mode_change = 1;
 191         }
 192         break;
 193
 194     case DLG_KEY:
 195         if ((Par == 'T' || Par == 't' || Par == KEY_IC) &&
 196             ch_dlg->current->dlg_id >= BUTTONS - single_set * 2) {
 197             chmod_toggle_select ();
 198             if (Par == KEY_IC)
 199                 dlg_one_down (ch_dlg);
 200             return 1;
 201         }
 202         break;
 203 #ifndef HAVE_X
 204     case DLG_DRAW:
 205         chmod_refresh ();
 206         break;
 207 #endif
 208     }
 209     return 0;
 210 }
 211
 212 static void init_chmod (void)
 213 {
 214     int i;
 215
 216     do_refresh ();
 217     end_chmod = c_file = need_update = 0;
 218     single_set = (cpanel->marked < 2) ? 2 : 0;
 219
 220     if (use_colors){
 221         normal_color = COLOR_NORMAL;
 222         title_color  = COLOR_HOT_NORMAL;
 223         selection_color = COLOR_NORMAL;
 224     } else {
 225         normal_color = NORMAL_COLOR;
 226         title_color  = SELECTED_COLOR;
 227         selection_color = SELECTED_COLOR;
 228     }
 229
 230     ch_dlg = create_dlg (0, 0, 22 - single_set, 70, dialog_colors,
 231                          chmod_callback, "[Chmod]", "chmod", DLG_CENTER);
 232
 233     x_set_dialog_title (ch_dlg, _("Chmod command"));
 234
 235 #define XTRACT(i) BY+chmod_but[i].y-single_set, BX+chmod_but[i].x, \
 236      chmod_but[i].ret_cmd, chmod_but[i].flags, _(chmod_but[i].text), 0, 0, NULL
 237
 238     for (i = 0; i < BUTTONS; i++) {
 239         if (i == 2 && single_set)
 240             break;
 241         else
 242             add_widgetl (ch_dlg, button_new (XTRACT (i)), XV_WLAY_RIGHTOF);
 243     }
 244
 245
 246 #define XTRACT2(i) 0, _(check_perm [i].text), NULL
 247     for (i = 0; i < PERMISSIONS; i++) {
 248         check_perm[i].check = check_new (PY + (PERMISSIONS - i), PX + 2,
 249                                          XTRACT2 (i));
 250         add_widget (ch_dlg, check_perm[i].check);
 251     }
 252 }
 253
 254 int stat_file (char *filename, struct stat *st)
 255 {
 256     if (mc_stat (filename, st))
 257         return 0;
 258     if (!(S_ISREG(st->st_mode) || S_ISDIR(st->st_mode) ||
 259           S_ISLNK(st->st_mode)))
 260         return 0;
 261
 262     return 1;
 263 }
 264
 265 static void chmod_done (void)
 266 {
 267     if (need_update)
 268         update_panels (UP_OPTIMIZE, UP_KEEPSEL);
 269     repaint_screen ();
 270 }
 271
 272 static char *next_file (void)
 273 {
 274     while (!cpanel->dir.list[c_file].f.marked)
 275         c_file++;
 276
 277     return cpanel->dir.list[c_file].fname;
 278 }
 279
 280 static void do_chmod (struct stat *sf)
 281 {
 282     sf->st_mode &= and_mask;
 283     sf->st_mode |= or_mask;
 284     if (mc_chmod (cpanel->dir.list [c_file].fname, sf->st_mode) == -1)
 285         message (1, MSG_ERROR, _(" Couldn't chmod \"%s\" \n %s "),
 286              cpanel->dir.list [c_file].fname, unix_error_string (errno));
 287
 288     do_file_mark (cpanel, c_file, 0);
 289 }
 290
 291 static void apply_mask (struct stat *sf)
 292 {
 293     char *fname;
 294
 295     need_update = end_chmod = 1;
 296     do_chmod (sf);
 297
 298     do {
 299         fname = next_file ();
 300         if (!stat_file (fname, sf))
 301             return;
 302         c_stat = sf->st_mode;
 303
 304         do_chmod (sf);
 305     } while (cpanel->marked);
 306 }
 307
 308 void chmod_cmd (void)
 309 {
 310     char buffer [BUF_TINY];
 311     char *fname;
 312     int i;
 313     struct stat sf_stat;
 314
 315 #if 0
 316     /* Don't do things like this: you do not want to enumerate all
 317        filesystems that can not support chmod, here. */
 318     if (!vfs_current_is_local ()) {
 319         if (vfs_current_is_extfs ()) {
 320             message (1, _(" Oops... "),
 321                      _(" I can't run the Chmod command on an extfs "));
 322             return;
 323         } else if (vfs_current_is_tarfs ()) {
 324             message (1, _(" Oops... "),
 325                      (" I can't run the Chmod command on a tarfs "));
 326             return;
 327         }
 328     }
 329 #endif
 330
 331     do {                        /* do while any files remaining */
 332         init_chmod ();
 333         if (cpanel->marked)
 334             fname = next_file ();       /* next marked file */
 335         else
 336             fname = selection (cpanel)->fname;  /* single file */
 337
 338         if (!stat_file (fname, &sf_stat)){      /* get status of file */
 339             destroy_dlg (ch_dlg);
 340             break;
 341         }
 342
 343         c_stat = sf_stat.st_mode;
 344         mode_change = 0;        /* clear changes flag */
 345
 346         /* set check buttons */
 347         for (i = 0; i < PERMISSIONS; i++){
 348             check_perm[i].check->state = (c_stat & check_perm[i].mode) ? 1 : 0;
 349             check_perm[i].selected = 0;
 350         }
 351
 352         /* Set the labels */
 353         c_fname = name_trunc (fname, 21);
 354         add_widget (ch_dlg, label_new (FY+2, FX+2, c_fname, NULL));
 355         c_fown = name_trunc (get_owner (sf_stat.st_uid), 21);
 356         add_widget (ch_dlg, label_new (FY+6, FX+2, c_fown, NULL));
 357         c_fgrp = name_trunc (get_group (sf_stat.st_gid), 21);
 358         add_widget (ch_dlg, label_new (FY+8, FX+2, c_fgrp, NULL));
 359         g_snprintf (buffer, sizeof (buffer), "%o", c_stat);
 360         statl = label_new (FY+4, FX+2, buffer, NULL);
 361         add_widget (ch_dlg, statl);
 362
 363         run_dlg (ch_dlg);       /* retrieve an action */
 364
 365         /* do action */
 366         switch (ch_dlg->ret_value){
 367         case B_ENTER:
 368             if (mode_change)
 369                 if (mc_chmod (fname, c_stat) == -1)
 370                     message (1, MSG_ERROR, _(" Couldn't chmod \"%s\" \n %s "),
 371                          fname, unix_error_string (errno));
 372             need_update = 1;
 373             break;
 374
 375         case B_CANCEL:
 376             end_chmod = 1;
 377             break;
 378
 379         case B_ALL:
 380         case B_MARKED:
 381             and_mask = or_mask = 0;
 382             and_mask = ~and_mask;
 383
 384             for (i = 0; i < PERMISSIONS; i++) {
 385                 if (check_perm[i].selected || ch_dlg->ret_value == B_ALL)
 386                     if (check_perm[i].check->state & C_BOOL)
 387                         or_mask |= check_perm[i].mode;
 388                     else
 389                         and_mask &= ~check_perm[i].mode;
 390             }
 391
 392             apply_mask (&sf_stat);
 393             break;
 394
 395         case B_SETMRK:
 396             and_mask = or_mask = 0;
 397             and_mask = ~and_mask;
 398
 399             for (i = 0; i < PERMISSIONS; i++) {
 400                 if (check_perm[i].selected)
 401                     or_mask |= check_perm[i].mode;
 402             }
 403
 404             apply_mask (&sf_stat);
 405             break;
 406         case B_CLRMRK:
 407             and_mask = or_mask = 0;
 408             and_mask = ~and_mask;
 409
 410             for (i = 0; i < PERMISSIONS; i++) {
 411                 if (check_perm[i].selected)
 412                     and_mask &= ~check_perm[i].mode;
 413             }
 414
 415             apply_mask (&sf_stat);
 416             break;
 417         }
 418
 419         if (cpanel->marked && ch_dlg->ret_value!=B_CANCEL) {
 420             do_file_mark (cpanel, c_file, 0);
 421             need_update = 1;
 422         }
 423         destroy_dlg (ch_dlg);
 424     } while (cpanel->marked && !end_chmod);
 425     chmod_done ();
 426 }
 427
 428 void ch1_cmd (int id)
 429 {
 430   if (advanced_chfns)
 431       chown_advanced_cmd ();
 432   else
 433       chmod_cmd ();
 434 }
 435
 436 void ch2_cmd (int id)
 437 {
 438   if (advanced_chfns)
 439       chown_advanced_cmd ();
 440   else
 441       chown_cmd ();
 442 }
 443