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-rw-r--r--src/filemanager/chown.c552
1 files changed, 552 insertions, 0 deletions
diff --git a/src/filemanager/chown.c b/src/filemanager/chown.c
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--- /dev/null
+++ b/src/filemanager/chown.c
@@ -0,0 +1,552 @@
+/*
+ Chown command -- for the Midnight Commander
+
+ Copyright (C) 1994-2023
+ Free Software Foundation, Inc.
+
+ This file is part of the Midnight Commander.
+
+ The Midnight Commander is free software: you can redistribute it
+ and/or modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
+
+ The Midnight Commander is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** \file chown.c
+ * \brief Source: chown command
+ */
+
+#include <config.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <pwd.h>
+#include <grp.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "lib/global.h"
+
+#include "lib/tty/tty.h"
+#include "lib/skin.h"
+#include "lib/vfs/vfs.h"
+#include "lib/strutil.h"
+#include "lib/util.h"
+#include "lib/widget.h"
+
+#include "src/setup.h" /* panels_options */
+
+#include "cmd.h" /* chown_cmd() */
+
+/*** global variables ****************************************************************************/
+
+/*** file scope macro definitions ****************************************************************/
+
+#define GH 12
+#define GW 21
+
+#define BUTTONS 5
+
+#define B_SETALL B_USER
+#define B_SETUSR (B_USER + 1)
+#define B_SETGRP (B_USER + 2)
+
+#define LABELS 5
+
+#define chown_label(n,txt) label_set_text (chown_label [n].l, txt)
+
+/*** file scope type declarations ****************************************************************/
+
+/*** forward declarations (file scope functions) *************************************************/
+
+/*** file scope variables ************************************************************************/
+
+static struct
+{
+ int ret_cmd;
+ button_flags_t flags;
+ int y;
+ int len;
+ const char *text;
+} chown_but[BUTTONS] =
+{
+ /* *INDENT-OFF* */
+ { B_SETALL, NORMAL_BUTTON, 5, 0, N_("Set &all") },
+ { B_SETGRP, NORMAL_BUTTON, 5, 0, N_("Set &groups") },
+ { B_SETUSR, NORMAL_BUTTON, 5, 0, N_("Set &users") },
+ { B_ENTER, DEFPUSH_BUTTON, 3, 0, N_("&Set") },
+ { B_CANCEL, NORMAL_BUTTON, 3, 0, N_("&Cancel") }
+ /* *INDENT-ON* */
+};
+
+/* summary length of three buttons */
+static int blen = 0;
+
+static struct
+{
+ int y;
+ WLabel *l;
+} chown_label[LABELS] =
+{
+ /* *INDENT-OFF* */
+ { 4, NULL },
+ { 6, NULL },
+ { 8, NULL },
+ { 10, NULL },
+ { 12, NULL }
+ /* *INDENT-ON* */
+};
+
+static int current_file;
+static gboolean ignore_all;
+
+static WListbox *l_user, *l_group;
+
+/* --------------------------------------------------------------------------------------------- */
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+chown_init (void)
+{
+ static gboolean i18n = FALSE;
+ int i;
+
+ if (i18n)
+ return;
+
+ i18n = TRUE;
+
+#ifdef ENABLE_NLS
+ for (i = 0; i < BUTTONS; i++)
+ chown_but[i].text = _(chown_but[i].text);
+#endif /* ENABLE_NLS */
+
+ for (i = 0; i < BUTTONS; i++)
+ {
+ chown_but[i].len = str_term_width1 (chown_but[i].text) + 3; /* [], spaces and w/o & */
+ if (chown_but[i].flags == DEFPUSH_BUTTON)
+ chown_but[i].len += 2; /* <> */
+
+ if (i < BUTTONS - 2)
+ blen += chown_but[i].len;
+ }
+
+ blen += 2;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+chown_refresh (const Widget * h)
+{
+ int y = 3;
+ int x = 7 + GW * 2;
+
+ tty_setcolor (COLOR_NORMAL);
+
+ widget_gotoyx (h, y + 0, x);
+ tty_print_string (_("Name"));
+ widget_gotoyx (h, y + 2, x);
+ tty_print_string (_("Owner name"));
+ widget_gotoyx (h, y + 4, x);
+ tty_print_string (_("Group name"));
+ widget_gotoyx (h, y + 6, x);
+ tty_print_string (_("Size"));
+ widget_gotoyx (h, y + 8, x);
+ tty_print_string (_("Permission"));
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static cb_ret_t
+chown_bg_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data)
+{
+ switch (msg)
+ {
+ case MSG_DRAW:
+ frame_callback (w, NULL, MSG_DRAW, 0, NULL);
+ chown_refresh (WIDGET (w->owner));
+ return MSG_HANDLED;
+
+ default:
+ return frame_callback (w, sender, msg, parm, data);
+ }
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static WDialog *
+chown_dlg_create (WPanel * panel)
+{
+ int single_set;
+ WDialog *ch_dlg;
+ WGroup *g;
+ int lines, cols;
+ int i, y;
+ struct passwd *l_pass;
+ struct group *l_grp;
+
+ single_set = (panel->marked < 2) ? 3 : 0;
+ lines = GH + 4 + (single_set != 0 ? 2 : 4);
+ cols = GW * 3 + 2 + 6;
+
+ ch_dlg =
+ dlg_create (TRUE, 0, 0, lines, cols, WPOS_CENTER, FALSE, dialog_colors, NULL, NULL,
+ "[Chown]", _("Chown command"));
+ g = GROUP (ch_dlg);
+
+ /* draw background */
+ ch_dlg->bg->callback = chown_bg_callback;
+
+ group_add_widget (g, groupbox_new (2, 3, GH, GW, _("User name")));
+ l_user = listbox_new (3, 4, GH - 2, GW - 2, FALSE, NULL);
+ group_add_widget (g, l_user);
+ /* add field for unknown names (numbers) */
+ listbox_add_item (l_user, LISTBOX_APPEND_AT_END, 0, _("<Unknown user>"), NULL, FALSE);
+ /* get and put user names in the listbox */
+ setpwent ();
+ while ((l_pass = getpwent ()) != NULL)
+ listbox_add_item (l_user, LISTBOX_APPEND_SORTED, 0, l_pass->pw_name, NULL, FALSE);
+ endpwent ();
+
+ group_add_widget (g, groupbox_new (2, 4 + GW, GH, GW, _("Group name")));
+ l_group = listbox_new (3, 5 + GW, GH - 2, GW - 2, FALSE, NULL);
+ group_add_widget (g, l_group);
+ /* add field for unknown names (numbers) */
+ listbox_add_item (l_group, LISTBOX_APPEND_AT_END, 0, _("<Unknown group>"), NULL, FALSE);
+ /* get and put group names in the listbox */
+ setgrent ();
+ while ((l_grp = getgrent ()) != NULL)
+ listbox_add_item (l_group, LISTBOX_APPEND_SORTED, 0, l_grp->gr_name, NULL, FALSE);
+ endgrent ();
+
+ group_add_widget (g, groupbox_new (2, 5 + GW * 2, GH, GW, _("File")));
+ /* add widgets for the file information */
+ for (i = 0; i < LABELS; i++)
+ {
+ chown_label[i].l = label_new (chown_label[i].y, 7 + GW * 2, NULL);
+ group_add_widget (g, chown_label[i].l);
+ }
+
+ if (single_set == 0)
+ {
+ int x;
+
+ group_add_widget (g, hline_new (lines - chown_but[0].y - 1, -1, -1));
+
+ y = lines - chown_but[0].y;
+ x = (cols - blen) / 2;
+
+ for (i = 0; i < BUTTONS - 2; i++)
+ {
+ group_add_widget (g, button_new (y, x, chown_but[i].ret_cmd, chown_but[i].flags,
+ chown_but[i].text, NULL));
+ x += chown_but[i].len + 1;
+ }
+ }
+
+ i = BUTTONS - 2;
+ y = lines - chown_but[i].y;
+ group_add_widget (g, hline_new (y - 1, -1, -1));
+ group_add_widget (g, button_new (y, WIDGET (ch_dlg)->rect.cols / 2 - chown_but[i].len,
+ chown_but[i].ret_cmd, chown_but[i].flags, chown_but[i].text,
+ NULL));
+ i++;
+ group_add_widget (g, button_new (y, WIDGET (ch_dlg)->rect.cols / 2 + 1, chown_but[i].ret_cmd,
+ chown_but[i].flags, chown_but[i].text, NULL));
+
+ /* select first listbox */
+ widget_select (WIDGET (l_user));
+
+ return ch_dlg;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+chown_done (gboolean need_update)
+{
+ if (need_update)
+ update_panels (UP_OPTIMIZE, UP_KEEPSEL);
+ repaint_screen ();
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static const GString *
+next_file (const WPanel * panel)
+{
+ while (panel->dir.list[current_file].f.marked == 0)
+ current_file++;
+
+ return panel->dir.list[current_file].fname;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static gboolean
+try_chown (const vfs_path_t * p, uid_t u, gid_t g)
+{
+ const char *fname = NULL;
+
+ while (mc_chown (p, u, g) == -1 && !ignore_all)
+ {
+ int my_errno = errno;
+ int result;
+ char *msg;
+
+ if (fname == NULL)
+ fname = x_basename (vfs_path_as_str (p));
+ msg = g_strdup_printf (_("Cannot chown \"%s\"\n%s"), fname, unix_error_string (my_errno));
+ result =
+ query_dialog (MSG_ERROR, msg, D_ERROR, 4, _("&Ignore"), _("Ignore &all"), _("&Retry"),
+ _("&Cancel"));
+ g_free (msg);
+
+ switch (result)
+ {
+ case 0:
+ /* try next file */
+ return TRUE;
+
+ case 1:
+ ignore_all = TRUE;
+ /* try next file */
+ return TRUE;
+
+ case 2:
+ /* retry this file */
+ break;
+
+ case 3:
+ default:
+ /* stop remain files processing */
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static gboolean
+do_chown (WPanel * panel, const vfs_path_t * p, uid_t u, gid_t g)
+{
+ gboolean ret;
+
+ ret = try_chown (p, u, g);
+
+ do_file_mark (panel, current_file, 0);
+
+ return ret;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+apply_chowns (WPanel * panel, vfs_path_t * vpath, uid_t u, gid_t g)
+{
+ gboolean ok;
+
+ if (!do_chown (panel, vpath, u, g))
+ return;
+
+ do
+ {
+ const GString *fname;
+ struct stat sf;
+
+ fname = next_file (panel);
+ vpath = vfs_path_from_str (fname->str);
+ ok = (mc_stat (vpath, &sf) == 0);
+
+ if (!ok)
+ {
+ /* if current file was deleted outside mc -- try next file */
+ /* decrease panel->marked */
+ do_file_mark (panel, current_file, 0);
+
+ /* try next file */
+ ok = TRUE;
+ }
+ else
+ ok = do_chown (panel, vpath, u, g);
+
+ vfs_path_free (vpath, TRUE);
+ }
+ while (ok && panel->marked != 0);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+void
+chown_cmd (WPanel * panel)
+{
+ gboolean need_update;
+ gboolean end_chown;
+
+ chown_init ();
+
+ current_file = 0;
+ ignore_all = FALSE;
+
+ do
+ { /* do while any files remaining */
+ vfs_path_t *vpath;
+ WDialog *ch_dlg;
+ struct stat sf_stat;
+ const GString *fname;
+ int result;
+ char buffer[BUF_TINY];
+ uid_t new_user = (uid_t) (-1);
+ gid_t new_group = (gid_t) (-1);
+
+ do_refresh ();
+
+ need_update = FALSE;
+ end_chown = FALSE;
+
+ if (panel->marked != 0)
+ fname = next_file (panel); /* next marked file */
+ else
+ fname = panel_current_entry (panel)->fname; /* single file */
+
+ vpath = vfs_path_from_str (fname->str);
+
+ if (mc_stat (vpath, &sf_stat) != 0)
+ {
+ vfs_path_free (vpath, TRUE);
+ break;
+ }
+
+ ch_dlg = chown_dlg_create (panel);
+
+ /* select in listboxes */
+ listbox_set_current (l_user, listbox_search_text (l_user, get_owner (sf_stat.st_uid)));
+ listbox_set_current (l_group, listbox_search_text (l_group, get_group (sf_stat.st_gid)));
+
+ chown_label (0, str_trunc (fname->str, GW - 4));
+ chown_label (1, str_trunc (get_owner (sf_stat.st_uid), GW - 4));
+ chown_label (2, str_trunc (get_group (sf_stat.st_gid), GW - 4));
+ size_trunc_len (buffer, GW - 4, sf_stat.st_size, 0, panels_options.kilobyte_si);
+ chown_label (3, buffer);
+ chown_label (4, string_perm (sf_stat.st_mode));
+
+ result = dlg_run (ch_dlg);
+
+ switch (result)
+ {
+ case B_CANCEL:
+ end_chown = TRUE;
+ break;
+
+ case B_ENTER:
+ case B_SETALL:
+ {
+ struct group *grp;
+ struct passwd *user;
+ char *text;
+
+ listbox_get_current (l_group, &text, NULL);
+ grp = getgrnam (text);
+ if (grp != NULL)
+ new_group = grp->gr_gid;
+ listbox_get_current (l_user, &text, NULL);
+ user = getpwnam (text);
+ if (user != NULL)
+ new_user = user->pw_uid;
+ if (result == B_ENTER)
+ {
+ if (panel->marked <= 1)
+ {
+ /* single or last file */
+ if (mc_chown (vpath, new_user, new_group) == -1)
+ message (D_ERROR, MSG_ERROR, _("Cannot chown \"%s\"\n%s"),
+ fname->str, unix_error_string (errno));
+ end_chown = TRUE;
+ }
+ else if (!try_chown (vpath, new_user, new_group))
+ {
+ /* stop multiple files processing */
+ result = B_CANCEL;
+ end_chown = TRUE;
+ }
+ }
+ else
+ {
+ apply_chowns (panel, vpath, new_user, new_group);
+ end_chown = TRUE;
+ }
+
+ need_update = TRUE;
+ break;
+ }
+
+ case B_SETUSR:
+ {
+ struct passwd *user;
+ char *text;
+
+ listbox_get_current (l_user, &text, NULL);
+ user = getpwnam (text);
+ if (user != NULL)
+ {
+ new_user = user->pw_uid;
+ apply_chowns (panel, vpath, new_user, new_group);
+ need_update = TRUE;
+ end_chown = TRUE;
+ }
+ break;
+ }
+
+ case B_SETGRP:
+ {
+ struct group *grp;
+ char *text;
+
+ listbox_get_current (l_group, &text, NULL);
+ grp = getgrnam (text);
+ if (grp != NULL)
+ {
+ new_group = grp->gr_gid;
+ apply_chowns (panel, vpath, new_user, new_group);
+ need_update = TRUE;
+ end_chown = TRUE;
+ }
+ break;
+ }
+
+ default:
+ break;
+ }
+
+ if (panel->marked != 0 && result != B_CANCEL)
+ {
+ do_file_mark (panel, current_file, 0);
+ need_update = TRUE;
+ }
+
+ vfs_path_free (vpath, TRUE);
+
+ widget_destroy (WIDGET (ch_dlg));
+ }
+ while (panel->marked != 0 && !end_chown);
+
+ chown_done (need_update);
+}
+
+/* --------------------------------------------------------------------------------------------- */
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