From dbb76606dcff4988636beb614ed3e5c4db5afbd7 Mon Sep 17 00:00:00 2001 From: Eugene Syromyatnikov Date: Thu, 22 Sep 2016 00:21:50 +0300 Subject: [PATCH] tests: check decoding of fallocate syscall * configure.ac (AC_CHECK_FUNCS): Add fallocate. * tests/fallocate.c: New file. * tests/fallocate.test: New test. * tests/.gitignore: Add fallocate. * tests/Makefile.am (check_PROGRAMS): Likewise. (DECODER_TESTS): Add fallocate.test. --- configure.ac | 1 + tests/.gitignore | 1 + tests/Makefile.am | 2 ++ tests/fallocate.c | 75 ++++++++++++++++++++++++++++++++++++++++++++ tests/fallocate.test | 6 ++++ 5 files changed, 85 insertions(+) create mode 100644 tests/fallocate.c create mode 100755 tests/fallocate.test diff --git a/configure.ac b/configure.ac index 5c924e7e..404dfb9d 100644 --- a/configure.ac +++ b/configure.ac @@ -281,6 +281,7 @@ AC_TYPE_UID_T AC_CHECK_FUNCS(m4_normalize([ accept4 + fallocate fanotify_mark fopen64 fork diff --git a/tests/.gitignore b/tests/.gitignore index 471e492e..12c7a577 100644 --- a/tests/.gitignore +++ b/tests/.gitignore @@ -44,6 +44,7 @@ execve-v execveat execveat-v faccessat +fallocate fanotify_mark fchdir fchmod diff --git a/tests/Makefile.am b/tests/Makefile.am index acedc0ae..0e4ad140 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -103,6 +103,7 @@ check_PROGRAMS = \ execveat \ execveat-v \ faccessat \ + fallocate \ fanotify_mark \ fchdir \ fchmod \ @@ -444,6 +445,7 @@ DECODER_TESTS = \ execveat-v.test \ execveat.test \ faccessat.test \ + fallocate.test \ fanotify_mark.test \ fchdir.test \ fchmod.test \ diff --git a/tests/fallocate.c b/tests/fallocate.c new file mode 100644 index 00000000..40ac2445 --- /dev/null +++ b/tests/fallocate.c @@ -0,0 +1,75 @@ +/* + * Check decoding of fallocate syscall. + * + * Copyright (c) 2016 Eugene Syromiatnikov + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "tests.h" + +#include + +#if defined(__NR_fallocate) && defined(HAVE_FALLOCATE) && HAVE_FALLOCATE + +# include +# include +# include + +# include "xlat.h" +# include "xlat/falloc_flags.h" + +int +main(void) +{ + static const int bogus_fd = 0xbeefface; + static const int bogus_mode = 0xdeadca75; + static const off_t bogus_offset = (off_t) 0xbadc0dedda7a1057LLU; + static const off_t bogus_len = (off_t) 0xbadfaceca7b0d1e5LLU; + + long rc = fallocate(bogus_fd, bogus_mode, bogus_offset, bogus_len); + /* + * Workaround a bug fixed by commit glibc-2.11-346-gde240a0. + */ + if (rc > 0) { + errno = rc; + rc = -1; + } + const char *errstr = sprintrc(rc); + + printf("fallocate(%d, ", bogus_fd); + printflags(falloc_flags, (unsigned) bogus_mode, "FALLOC_FL_???"); + printf(", %lld, %lld) = %s\n", + (long long) bogus_offset, (long long) bogus_len, errstr); + + puts("+++ exited with 0 +++"); + + return 0; +} + +#else + +SKIP_MAIN_UNDEFINED("__NR_fallocate && HAVE_FALLOCATE"); + +#endif diff --git a/tests/fallocate.test b/tests/fallocate.test new file mode 100755 index 00000000..405187e5 --- /dev/null +++ b/tests/fallocate.test @@ -0,0 +1,6 @@ +#!/bin/sh + +# Check getcwd syscall decoding. + +. "${srcdir=.}/init.sh" +run_strace_match_diff -a18 -- 2.50.1