| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 2006-2015 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2006. |
| 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 |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <limits.h> |
| 20 | #include <stdio.h> |
| 21 | #include <string.h> |
| 22 | #include <rpc/rpc.h> |
| 23 | #include <sys/mman.h> |
| 24 | #include <unistd.h> |
| 25 | |
| 26 | static int |
| 27 | do_test (void) |
| 28 | { |
| 29 | XDR xdrs; |
| 30 | void *buf; |
| 31 | size_t ps = sysconf (_SC_PAGESIZE); |
| 32 | uintptr_t half = -1; |
| 33 | int v_int; |
| 34 | u_short v_u_short; |
| 35 | |
| 36 | half = (half >> 1) & ~(uintptr_t) (ps - 1); |
| 37 | buf = mmap ((void *) half, 2 * ps, PROT_READ | PROT_WRITE, |
| 38 | MAP_PRIVATE | MAP_ANON, -1, 0); |
| 39 | if (buf == MAP_FAILED || buf != (void *) half) |
| 40 | { |
| 41 | puts ("Couldn't mmap 2 pages in the middle of address space"); |
| 42 | return 0; |
| 43 | } |
| 44 | |
| 45 | xdrmem_create (&xdrs, (char *) buf, 2 * ps, XDR_ENCODE); |
| 46 | |
| 47 | #define T(type, val) \ |
| 48 | v_##type = val; \ |
| 49 | if (! xdr_##type (&xdrs, &v_##type)) \ |
| 50 | { \ |
| 51 | puts ("encoding of " #type \ |
| 52 | " " #val " failed"); \ |
| 53 | return 1; \ |
| 54 | } |
| 55 | |
| 56 | T(int, 127) |
| 57 | |
| 58 | u_int pos = xdr_getpos (&xdrs); |
| 59 | |
| 60 | T(u_short, 31) |
| 61 | |
| 62 | if (! xdr_setpos (&xdrs, pos)) |
| 63 | { |
| 64 | puts ("xdr_setpos during encoding failed"); |
| 65 | return 1; |
| 66 | } |
| 67 | |
| 68 | T(u_short, 36) |
| 69 | |
| 70 | #undef T |
| 71 | |
| 72 | xdr_destroy (&xdrs); |
| 73 | |
| 74 | xdrmem_create (&xdrs, (char *) buf, 2 * ps, XDR_DECODE); |
| 75 | |
| 76 | #define T(type, val) \ |
| 77 | v_##type = 0x15; \ |
| 78 | if (! xdr_##type (&xdrs, &v_##type)) \ |
| 79 | { \ |
| 80 | puts ("decoding of " #type \ |
| 81 | " " #val " failed"); \ |
| 82 | return 1; \ |
| 83 | } \ |
| 84 | if (v_##type != val) \ |
| 85 | { \ |
| 86 | puts ("decoded value differs, " \ |
| 87 | "type " #type " " #val); \ |
| 88 | return 1; \ |
| 89 | } |
| 90 | |
| 91 | T(int, 127) |
| 92 | |
| 93 | pos = xdr_getpos (&xdrs); |
| 94 | |
| 95 | T(u_short, 36) |
| 96 | |
| 97 | if (! xdr_setpos (&xdrs, pos)) |
| 98 | { |
| 99 | puts ("xdr_setpos during encoding failed"); |
| 100 | return 1; |
| 101 | } |
| 102 | |
| 103 | T(u_short, 36) |
| 104 | |
| 105 | #undef T |
| 106 | |
| 107 | xdr_destroy (&xdrs); |
| 108 | |
| 109 | return 0; |
| 110 | } |
| 111 | |
| 112 | #define TEST_FUNCTION do_test () |
| 113 | #include "../test-skeleton.c" |