| /* Check for use-after-free in clntudp_call (bug 21115). |
| Copyright (C) 2017-2018 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 <netinet/in.h> |
| #include <rpc/clnt.h> |
| #include <rpc/svc.h> |
| #include <support/check.h> |
| #include <support/namespace.h> |
| #include <support/xsocket.h> |
| #include <unistd.h> |
| |
| static int |
| do_test (void) |
| { |
| support_become_root (); |
| support_enter_network_namespace (); |
| |
| /* Obtain a likely-unused port number. */ |
| struct sockaddr_in sin = |
| { |
| .sin_family = AF_INET, |
| .sin_addr.s_addr = htonl (INADDR_LOOPBACK), |
| }; |
| { |
| int fd = xsocket (AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0); |
| xbind (fd, (struct sockaddr *) &sin, sizeof (sin)); |
| socklen_t sinlen = sizeof (sin); |
| xgetsockname (fd, (struct sockaddr *) &sin, &sinlen); |
| /* Close the socket, so that we will receive an error below. */ |
| close (fd); |
| } |
| |
| int sock = RPC_ANYSOCK; |
| CLIENT *clnt = clntudp_create |
| (&sin, 1, 2, (struct timeval) { 1, 0 }, &sock); |
| TEST_VERIFY_EXIT (clnt != NULL); |
| TEST_VERIFY (clnt_call (clnt, 3, |
| (xdrproc_t) xdr_void, NULL, |
| (xdrproc_t) xdr_void, NULL, |
| ((struct timeval) { 3, 0 })) |
| == RPC_CANTRECV); |
| clnt_destroy (clnt); |
| |
| return 0; |
| } |
| |
| #include <support/test-driver.c> |
