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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /sunrpc/tst-xdrmem2.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'sunrpc/tst-xdrmem2.c')
-rw-r--r--sunrpc/tst-xdrmem2.c114
1 files changed, 114 insertions, 0 deletions
diff --git a/sunrpc/tst-xdrmem2.c b/sunrpc/tst-xdrmem2.c
new file mode 100644
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+++ b/sunrpc/tst-xdrmem2.c
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+/* Copyright (C) 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <rpc/rpc.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+static int
+do_test (void)
+{
+ XDR xdrs;
+ void *buf;
+ size_t ps = sysconf (_SC_PAGESIZE);
+ uintptr_t half = -1;
+ int v_int;
+ u_short v_u_short;
+
+ half = (half >> 1) & ~(uintptr_t) (ps - 1);
+ buf = mmap ((void *) half, 2 * ps, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANON, -1, 0);
+ if (buf == MAP_FAILED || buf != (void *) half)
+ {
+ puts ("Couldn't mmap 2 pages in the middle of address space");
+ return 0;
+ }
+
+ xdrmem_create (&xdrs, (char *) buf, 2 * ps, XDR_ENCODE);
+
+#define T(type, val) \
+ v_##type = val; \
+ if (! xdr_##type (&xdrs, &v_##type)) \
+ { \
+ puts ("encoding of " #type \
+ " " #val " failed"); \
+ return 1; \
+ }
+
+ T(int, 127)
+
+ u_int pos = xdr_getpos (&xdrs);
+
+ T(u_short, 31)
+
+ if (! xdr_setpos (&xdrs, pos))
+ {
+ puts ("xdr_setpos during encoding failed");
+ return 1;
+ }
+
+ T(u_short, 36)
+
+#undef T
+
+ xdr_destroy (&xdrs);
+
+ xdrmem_create (&xdrs, (char *) buf, 2 * ps, XDR_DECODE);
+
+#define T(type, val) \
+ v_##type = 0x15; \
+ if (! xdr_##type (&xdrs, &v_##type)) \
+ { \
+ puts ("decoding of " #type \
+ " " #val " failed"); \
+ return 1; \
+ } \
+ if (v_##type != val) \
+ { \
+ puts ("decoded value differs, " \
+ "type " #type " " #val); \
+ return 1; \
+ }
+
+ T(int, 127)
+
+ pos = xdr_getpos (&xdrs);
+
+ T(u_short, 36)
+
+ if (! xdr_setpos (&xdrs, pos))
+ {
+ puts ("xdr_setpos during encoding failed");
+ return 1;
+ }
+
+ T(u_short, 36)
+
+#undef T
+
+ xdr_destroy (&xdrs);
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"