| 1 | /* Test to verify that overlong hostname is rejected by clnt_create |
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| 2 | and doesn't cause a buffer overflow (bug 22542). |
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| 3 | |
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| 4 | Copyright (C) 2022 Free Software Foundation, Inc. |
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| 5 | This file is part of the GNU C Library. |
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| 6 | |
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| 7 | The GNU C Library is free software; you can redistribute it and/or |
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| 8 | modify it under the terms of the GNU Lesser General Public |
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| 9 | License as published by the Free Software Foundation; either |
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| 10 | version 2.1 of the License, or (at your option) any later version. |
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| 11 | |
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| 12 | The GNU C Library is distributed in the hope that it will be useful, |
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | Lesser General Public License for more details. |
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| 16 | |
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| 17 | You should have received a copy of the GNU Lesser General Public |
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| 18 | License along with the GNU C Library; if not, see |
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| 19 | <http://www.gnu.org/licenses/>. */ |
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| 20 | |
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| 21 | #include <errno.h> |
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| 22 | #include <rpc/clnt.h> |
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| 23 | #include <string.h> |
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| 24 | #include <support/check.h> |
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| 25 | #include <sys/socket.h> |
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| 26 | #include <sys/un.h> |
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| 27 | |
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| 28 | static int |
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| 29 | do_test (void) |
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| 30 | { |
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| 31 | /* Create an arbitrary hostname that's longer than fits in sun_path. */ |
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| 32 | char name [sizeof ((struct sockaddr_un*)0)->sun_path * 2]; |
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| 33 | memset (name, 'x', sizeof name - 1); |
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| 34 | name [sizeof name - 1] = '\0'; |
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| 35 | |
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| 36 | errno = 0; |
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| 37 | CLIENT *clnt = clnt_create (name, 0, 0, "unix" ); |
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| 38 | |
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| 39 | TEST_VERIFY (clnt == NULL); |
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| 40 | TEST_COMPARE (errno, EINVAL); |
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| 41 | return 0; |
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| 42 | } |
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| 43 | |
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| 44 | #include <support/test-driver.c> |
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| 45 | |
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