Initial checkin

1 files changed, 63 insertions, 0 deletions

diff --git a/libshouldbeinlibc/ugids-verify.c b/libshouldbeinlibc/ugids-verify.c
new file mode 100644
index 00000000..b2400bec
--- /dev/null
+++ b/libshouldbeinlibc/ugids-verify.c
@@ -0,0 +1,63 @@
+/* Verify user/group passwords
+
+   Copyright (C) 1997 Free Software Foundation, Inc.
+
+   Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+   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 2, 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdlib.h>
+#include <string.h>
+#include <hurd.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <argp.h>
+#include <pwd.h>
+#include <grp.h>
+
+#include "ugids.h"
+
+/* Verify that we have the right to the ids in UGIDS, given that we already
+   possess those in HAVE_UIDS and HAVE_GIDS, asking for passwords (with
+   GETPASS, which defaults to the standard libc function getpass) where
+   necessary.  0 is returned if access should be allowed, otherwise
+   EINVAL if an incorrect password was entered, or an error relating to
+   resource failure.  */
+error_t
+ugids_verify (const struct ugids *ugids,
+	      const struct idvec *have_uids, const struct idvec *have_gids,
+	      char *(*getpass_fn)(const char *prompt))
+{
+  error_t err;
+  struct idvec check_uids = IDVEC_INIT; /* User-ids to verify.  */
+  struct idvec check_gids = IDVEC_INIT; /* group-ids to verify.  */
+
+  err = idvec_merge (&check_uids, &ugids->eff_uids);
+  if (! err)
+    err = idvec_merge (&check_uids, &ugids->avail_uids);
+  if (! err)
+    err = idvec_merge (&check_gids, &ugids->eff_gids);
+  if (! err)
+    err = idvec_merge (&check_gids, &ugids->avail_gids);
+
+  if (! err)
+    err = idvec_verify (&check_uids, &check_gids, have_uids, have_gids,
+			getpass_fn);
+
+  idvec_fini (&check_uids);
+  idvec_fini (&check_gids);
+
+  return err;
+}