[Feature][T106]ZXW P56U09 code
Only Configure: Yes
Affected branch: master
Affected module: unknow
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: No
Doc Update: No
Change-Id: I3cbd8b420271eb20c2b40ebe5c78f83059cd42f3
diff --git a/ap/libc/glibc/glibc-2.23/sysdeps/mach/hurd/setuid.c b/ap/libc/glibc/glibc-2.23/sysdeps/mach/hurd/setuid.c
new file mode 100644
index 0000000..6fca89c
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/sysdeps/mach/hurd/setuid.c
@@ -0,0 +1,99 @@
+/* Copyright (C) 1991-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <hurd.h>
+#include <hurd/id.h>
+#include <string.h>
+
+/* Set the user ID of the calling process to UID.
+ If the calling process is the super-user, the real
+ and effective user IDs, and the saved set-user-ID to UID;
+ if not, the effective user ID is set to UID. */
+int
+__setuid (uid_t uid)
+{
+ auth_t newauth;
+ error_t err;
+
+ HURD_CRITICAL_BEGIN;
+ __mutex_lock (&_hurd_id.lock);
+ err = _hurd_check_ids ();
+
+ if (!err)
+ {
+ /* Make a new auth handle which has UID as the real uid,
+ and as the first element in the list of effective uids. */
+
+ uid_t *newgen, *newaux, auxbuf[2];
+ size_t ngen, naux;
+
+ newaux = _hurd_id.aux.uids;
+ naux = _hurd_id.aux.nuids;
+ if (_hurd_id.gen.nuids == 0)
+ {
+ /* No effective uids now. The new set will be just UID. */
+ newgen = &uid;
+ ngen = 1;
+ }
+ else if (_hurd_id.gen.uids[0] == 0)
+ {
+ /* We are root; set the effective, real, and saved to UID. */
+ _hurd_id.gen.uids[0] = uid;
+ _hurd_id.valid = 0;
+ newgen = _hurd_id.gen.uids;
+ ngen = _hurd_id.gen.nuids;
+ if (_hurd_id.aux.nuids < 2)
+ {
+ newaux = auxbuf;
+ naux = 2;
+ }
+ newaux[0] = newaux[1] = uid;
+ }
+ else
+ {
+ /* We are not root; just change the effective UID. */
+ /* XXX that implies an unprivileged setuid(0) will give
+ the caller root, no questions asked! */
+ _hurd_id.gen.uids[0] = uid;
+ _hurd_id.valid = 0;
+ newgen = _hurd_id.gen.uids;
+ ngen = _hurd_id.gen.nuids;
+ }
+
+ err = __USEPORT (AUTH, __auth_makeauth
+ (port, NULL, MACH_MSG_TYPE_COPY_SEND, 0,
+ newgen, ngen, newaux, naux,
+ _hurd_id.gen.gids, _hurd_id.gen.ngids,
+ _hurd_id.aux.gids, _hurd_id.aux.ngids,
+ &newauth));
+ }
+ __mutex_unlock (&_hurd_id.lock);
+ HURD_CRITICAL_END;
+
+ if (err)
+ return __hurd_fail (err);
+
+ /* Install the new handle and reauthenticate everything. */
+ err = __setauth (newauth);
+ __mach_port_deallocate (__mach_task_self (), newauth);
+ return err;
+}
+
+weak_alias (__setuid, setuid)