minix/tests/lib/libc/sys/t_write.c
Lionel Sambuc 11be35a165 Importing NetBSD "Kyua" test framework
To do so, a few dependencies have been imported:

 * external/bsd/lutok
 * external/mit/lua
 * external/public-domain/sqlite
 * external/public-domain/xz

The Kyua framework is the new generation of ATF (Automated Test
Framework), it is composed of:

 * external/bsd/atf
 * external/bsd/kyua-atf-compat
 * external/bsd/kyua-cli
 * external/bsd/kyua-tester
 * tests

Kyua/ATF being written in C++, it depends on libstdc++ which is
provided by GCC. As this is not part of the sources, Kyua is only
compiled when the native GCC utils are installed.

To install Kyua do the following:

 * In a cross-build enviromnent, add the following to the build.sh
   commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes

WARNING:
  At this point the import is still experimental, and not supported
  on native builds (a.k.a make build).

Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada
2013-07-23 20:43:41 +02:00

226 lines
5.2 KiB
C

/* $NetBSD: t_write.c,v 1.2 2011/10/19 16:19:30 jruoho Exp $ */
/*-
* Copyright (c) 2001, 2008 The NetBSD Foundation, Inc.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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 <sys/cdefs.h>
__COPYRIGHT("@(#) Copyright (c) 2008\
The NetBSD Foundation, inc. All rights reserved.");
__RCSID("$NetBSD: t_write.c,v 1.2 2011/10/19 16:19:30 jruoho Exp $");
#include <sys/uio.h>
#include <sys/syslimits.h>
#include <atf-c.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
static void sighandler(int);
static bool fail = false;
static const char *path = "write";
static void
sighandler(int signo)
{
fail = false;
}
ATF_TC_WITH_CLEANUP(write_err);
ATF_TC_HEAD(write_err, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks errors from write(2)");
}
ATF_TC_BODY(write_err, tc)
{
char rbuf[3] = { 'a', 'b', 'c' };
char wbuf[3] = { 'x', 'y', 'z' };
int fd;
errno = 0;
ATF_REQUIRE_ERRNO(EBADF, write(-1, wbuf, sizeof(wbuf)) == -1);
fd = open(path, O_RDWR | O_CREAT);
if (fd >= 0) {
errno = 0;
ATF_REQUIRE_ERRNO(0, write(fd, wbuf, 3) == 3);
errno = 0;
ATF_REQUIRE_ERRNO(EINVAL, write(fd, wbuf, SIZE_MAX) == -1);
errno = 0;
ATF_REQUIRE_ERRNO(EFAULT, write(fd, (void *)-1, 1) == -1);
/*
* Check that the above bogus write(2)
* calls did not corrupt the file.
*/
ATF_REQUIRE(lseek(fd, 0, SEEK_SET) == 0);
ATF_REQUIRE(read(fd, rbuf, 3) == 3);
ATF_REQUIRE(memcmp(rbuf, wbuf, 3) == 0);
(void)close(fd);
(void)unlink(path);
}
}
ATF_TC_CLEANUP(write_err, tc)
{
(void)unlink(path);
}
ATF_TC(write_pipe);
ATF_TC_HEAD(write_pipe, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks for EPIPE from write(2)");
}
ATF_TC_BODY(write_pipe, tc)
{
int fds[2];
ATF_REQUIRE(pipe(fds) == 0);
ATF_REQUIRE(signal(SIGPIPE, sighandler) == 0);
ATF_REQUIRE(write(fds[1], "x", 1) != -1);
ATF_REQUIRE(close(fds[0]) == 0);
errno = 0;
fail = true;
if (write(fds[1], "x", 1) != -1 || errno != EPIPE)
atf_tc_fail_nonfatal("expected EPIPE but write(2) succeeded");
ATF_REQUIRE(close(fds[1]) == 0);
if (fail != false)
atf_tc_fail_nonfatal("SIGPIPE was not raised");
}
ATF_TC_WITH_CLEANUP(write_pos);
ATF_TC_HEAD(write_pos, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks that write(2) "
"updates the file position");
}
ATF_TC_BODY(write_pos, tc)
{
const size_t n = 123;
size_t i;
int fd;
fd = open(path, O_RDWR | O_CREAT);
ATF_REQUIRE(fd >= 0);
for (i = 0; i < n; i++) {
ATF_REQUIRE(write(fd, "x", 1) == 1);
ATF_REQUIRE(lseek(fd, 0, SEEK_CUR) == (off_t)(i + 1));
}
ATF_REQUIRE(close(fd) == 0);
ATF_REQUIRE(unlink(path) == 0);
}
ATF_TC_CLEANUP(write_pos, tc)
{
(void)unlink(path);
}
ATF_TC_WITH_CLEANUP(write_ret);
ATF_TC_HEAD(write_ret, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks return values from write(2)");
}
ATF_TC_BODY(write_ret, tc)
{
const size_t n = 99;
char buf[123];
size_t i, j;
int fd;
fd = open(path, O_WRONLY | O_CREAT);
ATF_REQUIRE(fd >= 0);
(void)memset(buf, 'x', sizeof(buf));
for (i = j = 0; i < n; i++)
j += write(fd, buf, sizeof(buf));
if (j != n * 123)
atf_tc_fail("inconsistent return values from write(2)");
(void)close(fd);
(void)unlink(path);
}
ATF_TC_CLEANUP(write_ret, tc)
{
(void)unlink(path);
}
ATF_TC(writev_iovmax);
ATF_TC_HEAD(writev_iovmax, tc)
{
atf_tc_set_md_var(tc, "timeout", "10");
atf_tc_set_md_var(tc, "descr",
"Checks that file descriptor is properly FILE_UNUSE()d "
"when iovcnt is greater than IOV_MAX");
}
ATF_TC_BODY(writev_iovmax, tc)
{
ssize_t retval;
(void)printf("Calling writev(2, NULL, IOV_MAX + 1)...\n");
errno = 0;
retval = writev(2, NULL, IOV_MAX + 1);
ATF_REQUIRE_EQ_MSG(retval, -1, "got: %zd", retval);
ATF_REQUIRE_EQ_MSG(errno, EINVAL, "got: %s", strerror(errno));
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, write_err);
ATF_TP_ADD_TC(tp, write_pipe);
ATF_TP_ADD_TC(tp, write_pos);
ATF_TP_ADD_TC(tp, write_ret);
ATF_TP_ADD_TC(tp, writev_iovmax);
return atf_no_error();
}