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/*
* Test suite for xwrite, xwritev, and xpwrite.
*
* The canonical version of this file is maintained in the rra-c-util package,
* which can be found at <http://www.eyrie.org/~eagle/software/rra-c-util/>.
*
* Copyright 2000, 2001, 2002, 2004 Russ Allbery <eagle@eyrie.org>
* Copyright 2009, 2014
* The Board of Trustees of the Leland Stanford Junior University
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <config.h>
#include <portable/system.h>
#include <portable/uio.h>
#include <errno.h>
#include <tests/tap/basic.h>
#include <util/xwrite.h>
/* The data array we'll use to do testing. */
char data[256];
/* These come from fakewrite. */
extern char write_buffer[];
extern size_t write_offset;
extern int write_interrupt;
extern int write_fail;
static void
test_write(int status, int total, const char *name)
{
is_int(total, status, "%s return status", name);
ok(memcmp(data, write_buffer, 256) == 0, "%s output", name);
}
int
main(void)
{
int i;
struct iovec iov[4];
plan(44);
/* Test xwrite. */
for (i = 0; i < 256; i++)
data[i] = i;
test_write(xwrite(0, data, 256), 256, "xwrite");
write_offset = 0;
write_interrupt = 1;
memset(data, 0, 256);
test_write(xwrite(0, data, 256), 256, "xwrite interrupted");
write_offset = 0;
for (i = 0; i < 32; i++)
data[i] = i * 2;
test_write(xwrite(0, data, 32), 32, "xwrite first block");
for (i = 32; i < 65; i++)
data[i] = i * 2;
test_write(xwrite(0, data + 32, 33), 33, "xwrite second block");
write_offset = 0;
write_interrupt = 0;
/* Test xwritev. */
memset(data, 0, 256);
iov[0].iov_base = data;
iov[0].iov_len = 256;
test_write(xwritev(0, iov, 1), 256, "xwritev");
write_offset = 0;
for (i = 0; i < 256; i++)
data[i] = i;
iov[0].iov_len = 128;
iov[1].iov_base = &data[128];
iov[1].iov_len = 16;
iov[2].iov_base = &data[144];
iov[2].iov_len = 112;
test_write(xwritev(0, iov, 3), 256, "xwritev with multiple iovs");
write_offset = 0;
write_interrupt = 1;
memset(data, 0, 256);
iov[0].iov_len = 32;
iov[1].iov_base = &data[32];
iov[1].iov_len = 224;
test_write(xwritev(0, iov, 2), 256, "xwritev interrupted");
for (i = 0; i < 32; i++)
data[i] = i * 2;
write_offset = 0;
test_write(xwritev(0, iov, 1), 32, "xwritev first block");
for (i = 32; i < 65; i++)
data[i] = i * 2;
iov[0].iov_base = &data[32];
iov[0].iov_len = 16;
iov[1].iov_base = &data[48];
iov[1].iov_len = 1;
iov[2].iov_base = &data[49];
iov[2].iov_len = 8;
iov[3].iov_base = &data[57];
iov[3].iov_len = 8;
test_write(xwritev(0, iov, 4), 33, "xwritev second block");
write_offset = 0;
write_interrupt = 0;
/* Test bounds errors in xwritev. */
is_int(-1, xwritev(0, iov, -1), "xwrite with negative count");
is_int(EINVAL, errno, "...with correct errno");
if (INT_MAX <= SIZE_MAX / sizeof(struct iovec))
skip_block(2, "xwritev count overflow not possible");
else {
is_int(-1, xwritev(0, iov, INT_MAX), "xwrite with INT_MAX count");
is_int(EINVAL, errno, "...with correct errno");
}
/* Test xpwrite. */
for (i = 0; i < 256; i++)
data[i] = i;
test_write(xpwrite(0, data, 256, 0), 256, "xpwrite");
write_interrupt = 1;
memset(data + 1, 0, 255);
test_write(xpwrite(0, data + 1, 255, 1), 255, "xpwrite interrupted");
for (i = 0; i < 32; i++)
data[i + 32] = i * 2;
test_write(xpwrite(0, data + 32, 32, 32), 32, "xpwrite first block");
for (i = 32; i < 65; i++)
data[i + 32] = i * 2;
test_write(xpwrite(0, data + 64, 33, 64), 33, "xpwrite second block");
write_interrupt = 0;
/* Test failures. */
write_fail = 1;
test_write(xwrite(0, data + 1, 255), -1, "xwrite fail");
iov[0].iov_base = data + 1;
iov[0].iov_len = 255;
test_write(xwritev(0, iov, 1), -1, "xwritev fail");
test_write(xpwrite(0, data + 1, 255, 0), -1, "xpwrite fail");
/* Test zero-length writes. */
test_write(xwrite(0, " ", 0), 0, "xwrite zero length");
test_write(xpwrite(0, " ", 0, 2), 0, "xpwrite zero length");
iov[0].iov_base = data + 1;
iov[0].iov_len = 2;
test_write(xwritev(0, iov, 0), 0, "xwritev zero length");
iov[0].iov_len = 0;
test_write(xwritev(0, iov, 1), 0, "xwritev zero length with buffers");
return 0;
}
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