tests: use chroot --user rather than internal setuidgid tool

* init.cfg (require_root_): Adjust to use chroot, and make
`require_built_ chroot` implicit when chroot used in the test.
* po/POTFILES.in: Remove reference to setuidgid tool.
* src/.gitignore: Likewise.
* src/local.mk: Likewise.
* src/setuidgid.c: Remove.
* tests/cp/preserve-gid.sh: s/setuidgid/chroot --user/.
* tests/cp/special-bits.sh: Likewise.
* tests/id/setgid.sh: Likewise.
* tests/misc/truncate-owned-by-other.sh
* tests/mv/sticky-to-xpart.sh: Likewise.
* tests/rm/fail-2eperm.sh: Likewise.
* tests/rm/no-give-up.sh: Likewise.
* tests/touch/now-owned-by-other.sh: Likewise.
* tests/misc/chroot-fail.sh: Skip if chroot not built.

3 files changed, 1 insertions, 219 deletions

diff --git a/src/.gitignore b/src/.gitignore
index 25573dfa2..e273bb867 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -75,7 +75,6 @@ rm
 rmdir
 runcon
 seq
-setuidgid
 sha1sum
 sha224sum
 sha256sum
diff --git a/src/local.mk b/src/local.mk
index 40798d6e8..1d7abf600 100644
--- a/src/local.mk
+++ b/src/local.mk
@@ -37,8 +37,7 @@ pkglibexec_PROGRAMS = @pkglibexec_PROGRAMS@
 # Needed by the testsuite.
 noinst_PROGRAMS =		\
   src/getlimits			\
-  src/make-prime-list		\
-  src/setuidgid
+  src/make-prime-list
 
 noinst_HEADERS =		\
   src/chown-core.h		\
@@ -166,7 +165,6 @@ src_rm_LDADD = $(LDADD)
 src_rmdir_LDADD = $(LDADD)
 src_runcon_LDADD = $(LDADD)
 src_seq_LDADD = $(LDADD)
-src_setuidgid_LDADD = $(LDADD)
 src_sha1sum_LDADD = $(LDADD)
 src_sha224sum_LDADD = $(LDADD)
 src_sha256sum_LDADD = $(LDADD)
diff --git a/src/setuidgid.c b/src/setuidgid.c
deleted file mode 100644
index 9aadb7fac..000000000
--- a/src/setuidgid.c
+++ /dev/null
@@ -1,215 +0,0 @@
-/* setuidgid - run a command with the UID and GID of a specified user
-   Copyright (C) 2003-2014 Free Software Foundation, Inc.
-
-   This program 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.
-
-   This program 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/>.  */
-
-/* Written by Jim Meyering  */
-
-#include <config.h>
-#include <getopt.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <pwd.h>
-#include <grp.h>
-
-#include "system.h"
-
-#include "error.h"
-#include "long-options.h"
-#include "mgetgroups.h"
-#include "quote.h"
-#include "xstrtol.h"
-
-#define PROGRAM_NAME "setuidgid"
-
-/* I wrote this program from scratch, based on the description of
-   D.J. Bernstein's program: http://cr.yp.to/daemontools/setuidgid.html.  */
-#define AUTHORS proper_name ("Jim Meyering")
-
-#define SETUIDGID_FAILURE 111
-
-void
-usage (int status)
-{
-  if (status != EXIT_SUCCESS)
-    emit_try_help ();
-  else
-    {
-      printf (_("\
-Usage: %s [SHORT-OPTION]... USER COMMAND [ARGUMENT]...\n\
-  or:  %s LONG-OPTION\n\
-"),
-              program_name, program_name);
-
-      fputs (_("\
-Drop any supplemental groups, assume the user-ID and group-ID of the specified\
-\n\
-USER (numeric ID or user name), and run COMMAND with any specified ARGUMENTs.\n\
-Exit with status 111 if unable to assume the required user and group ID.\n\
-Otherwise, exit with the exit status of COMMAND.\n\
-This program is useful only when run by root (user ID zero).\n\
-\n\
-"), stdout);
-      fputs (_("\
-  -g GID[,GID1...]  also set the primary group-ID to the numeric GID, and\n\
-                      (if specified) supplemental group IDs to GID1, ...\n\
-"), stdout);
-      fputs (HELP_OPTION_DESCRIPTION, stdout);
-      fputs (VERSION_OPTION_DESCRIPTION, stdout);
-      emit_ancillary_info ();
-    }
-  exit (status);
-}
-
-int
-main (int argc, char **argv)
-{
-  uid_t uid;
-  GETGROUPS_T *gids = NULL;
-  size_t n_gids = 0;
-  size_t n_gids_allocated = 0;
-  gid_t primary_gid;
-
-  initialize_main (&argc, &argv);
-  set_program_name (argv[0]);
-  setlocale (LC_ALL, "");
-  bindtextdomain (PACKAGE, LOCALEDIR);
-  textdomain (PACKAGE);
-
-  initialize_exit_failure (SETUIDGID_FAILURE);
-  atexit (close_stdout);
-
-  parse_long_options (argc, argv, PROGRAM_NAME, PACKAGE_NAME, Version,
-                      usage, AUTHORS, (char const *) NULL);
-  {
-    int c;
-    while ((c = getopt_long (argc, argv, "+g:", NULL, NULL)) != -1)
-      {
-        switch (c)
-          {
-            case 'g':
-              {
-                unsigned long int tmp_ul;
-                char *gr = optarg;
-                char *ptr;
-                while (true)
-                  {
-                    if (! (xstrtoul (gr, &ptr, 10, &tmp_ul, NULL) == LONGINT_OK
-                           && tmp_ul <= GID_T_MAX))
-                      error (SETUIDGID_FAILURE, 0, _("invalid group %s"),
-                             quote (gr));
-                    if (n_gids == n_gids_allocated)
-                      gids = X2NREALLOC (gids, &n_gids_allocated);
-                    gids[n_gids++] = tmp_ul;
-
-                    if (*ptr == '\0')
-                      break;
-                    if (*ptr != ',')
-                      {
-                        error (0, 0, _("invalid group %s"), quote (gr));
-                        usage (SETUIDGID_FAILURE);
-                      }
-                    gr = ptr + 1;
-                  }
-                break;
-              }
-
-            default:
-              usage (SETUIDGID_FAILURE);
-          }
-      }
-  }
-
-  if (argc <= optind + 1)
-    {
-      if (argc < optind + 1)
-        error (0, 0, _("missing operand"));
-      else
-        error (0, 0, _("missing operand after %s"), quote (argv[optind]));
-      usage (SETUIDGID_FAILURE);
-    }
-
-  {
-    const struct passwd *pwd;
-    unsigned long int tmp_ul;
-    char *user = argv[optind];
-    char *ptr;
-    bool have_uid = false;
-
-    if (xstrtoul (user, &ptr, 10, &tmp_ul, "") == LONGINT_OK
-        && tmp_ul <= UID_T_MAX)
-      {
-        uid = tmp_ul;
-        have_uid = true;
-      }
-
-    if (!have_uid)
-      {
-        pwd = getpwnam (user);
-        if (pwd == NULL)
-          {
-            error (0, errno, _("unknown user-ID: %s"), quote (user));
-            usage (SETUIDGID_FAILURE);
-          }
-        uid = pwd->pw_uid;
-      }
-    else if (n_gids == 0)
-      {
-        pwd = getpwuid (uid);
-        if (pwd == NULL)
-          {
-            error (0, errno,
-                   _("to use user-ID %s you need to use -g too"), quote (user));
-            usage (SETUIDGID_FAILURE);
-          }
-      }
-
-#if HAVE_SETGROUPS
-    if (n_gids == 0)
-      {
-        int n = xgetgroups (pwd->pw_name, pwd->pw_gid, &gids);
-        if (n <= 0)
-          error (SETUIDGID_FAILURE, errno,
-                 _("failed to get groups for user %s"), quote (pwd->pw_name));
-        n_gids = n;
-      }
-
-    if (setgroups (n_gids, gids))
-      error (SETUIDGID_FAILURE, errno,
-             _("failed to set supplemental group(s)"));
-
-    primary_gid = gids[0];
-#else
-    primary_gid = pwd->pw_gid;
-#endif
-  }
-
-  if (setgid (primary_gid))
-    error (SETUIDGID_FAILURE, errno,
-           _("cannot set group-ID to %lu"), (unsigned long int) primary_gid);
-
-  if (setuid (uid))
-    error (SETUIDGID_FAILURE, errno,
-           _("cannot set user-ID to %lu"), (unsigned long int) uid);
-
-  {
-    char **cmd = argv + optind + 1;
-    int exit_status;
-    execvp (*cmd, cmd);
-    exit_status = (errno == ENOENT ? EXIT_ENOENT : EXIT_CANNOT_INVOKE);
-
-    error (0, errno, _("failed to run command %s"), quote (*cmd));
-    exit (exit_status);
-  }
-}