projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| d42eed4a | 1 | /* Check for use-after-free in clntudp_call (bug 21115). |
| 2b778ceb | 2 | Copyright (C) 2017-2021 Free Software Foundation, Inc. |
| d42eed4a FW |
3 | This file is part of the GNU C Library. |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Lesser General Public | |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Lesser General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public | |
| 16 | License along with the GNU C Library; if not, see | |
| 5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
| d42eed4a FW |
18 | |
| 19 | #include <netinet/in.h> | |
| 20 | #include <rpc/clnt.h> | |
| 21 | #include <rpc/svc.h> | |
| 22 | #include <support/check.h> | |
| 23 | #include <support/namespace.h> | |
| 24 | #include <support/xsocket.h> | |
| 25 | #include <unistd.h> | |
| 26 | ||
| 27 | static int | |
| 28 | do_test (void) | |
| 29 | { | |
| 30 | support_become_root (); | |
| 31 | support_enter_network_namespace (); | |
| 32 | ||
| 33 | /* Obtain a likely-unused port number. */ | |
| 34 | struct sockaddr_in sin = | |
| 35 | { | |
| 36 | .sin_family = AF_INET, | |
| 37 | .sin_addr.s_addr = htonl (INADDR_LOOPBACK), | |
| 38 | }; | |
| 39 | { | |
| 40 | int fd = xsocket (AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0); | |
| 41 | xbind (fd, (struct sockaddr *) &sin, sizeof (sin)); | |
| 42 | socklen_t sinlen = sizeof (sin); | |
| 43 | xgetsockname (fd, (struct sockaddr *) &sin, &sinlen); | |
| 44 | /* Close the socket, so that we will receive an error below. */ | |
| 45 | close (fd); | |
| 46 | } | |
| 47 | ||
| 48 | int sock = RPC_ANYSOCK; | |
| 49 | CLIENT *clnt = clntudp_create | |
| 50 | (&sin, 1, 2, (struct timeval) { 1, 0 }, &sock); | |
| 51 | TEST_VERIFY_EXIT (clnt != NULL); | |
| 52 | TEST_VERIFY (clnt_call (clnt, 3, | |
| 53 | (xdrproc_t) xdr_void, NULL, | |
| 54 | (xdrproc_t) xdr_void, NULL, | |
| 55 | ((struct timeval) { 3, 0 })) | |
| 56 | == RPC_CANTRECV); | |
| 57 | clnt_destroy (clnt); | |
| 58 | ||
| 59 | return 0; | |
| 60 | } | |
| 61 | ||
| 62 | #include <support/test-driver.c> |