114 lines
2.5 KiB
C
114 lines
2.5 KiB
C
/* Copyright (C) 2006-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include <rpc/rpc.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#include <stdint.h>
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static int
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do_test (void)
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{
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XDR xdrs;
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void *buf;
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size_t ps = sysconf (_SC_PAGESIZE);
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uintptr_t half = -1;
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int v_int;
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u_short v_u_short;
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half = (half >> 1) & ~(uintptr_t) (ps - 1);
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buf = mmap ((void *) half, 2 * ps, PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANON, -1, 0);
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if (buf == MAP_FAILED || buf != (void *) half)
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{
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puts ("Couldn't mmap 2 pages in the middle of address space");
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return 0;
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}
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xdrmem_create (&xdrs, (char *) buf, 2 * ps, XDR_ENCODE);
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#define T(type, val) \
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v_##type = val; \
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if (! xdr_##type (&xdrs, &v_##type)) \
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{ \
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puts ("encoding of " #type \
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" " #val " failed"); \
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return 1; \
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}
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T(int, 127)
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u_int pos = xdr_getpos (&xdrs);
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T(u_short, 31)
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if (! xdr_setpos (&xdrs, pos))
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{
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puts ("xdr_setpos during encoding failed");
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return 1;
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}
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T(u_short, 36)
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#undef T
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xdr_destroy (&xdrs);
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xdrmem_create (&xdrs, (char *) buf, 2 * ps, XDR_DECODE);
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#define T(type, val) \
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v_##type = 0x15; \
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if (! xdr_##type (&xdrs, &v_##type)) \
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{ \
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puts ("decoding of " #type \
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" " #val " failed"); \
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return 1; \
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} \
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if (v_##type != val) \
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{ \
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puts ("decoded value differs, " \
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"type " #type " " #val); \
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return 1; \
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}
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T(int, 127)
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pos = xdr_getpos (&xdrs);
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T(u_short, 36)
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if (! xdr_setpos (&xdrs, pos))
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{
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puts ("xdr_setpos during encoding failed");
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return 1;
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}
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T(u_short, 36)
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#undef T
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xdr_destroy (&xdrs);
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return 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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