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/*
* Copyright (c) 2014 Masatake YAMATO <yamato@redhat.com>
* Copyright (c) 2014-2016 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2014-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <assert.h>
#include <unistd.h>
#include "msghdr.h"
int
main(void)
{
tprintf("%s", "");
int fds[2];
if (socketpair(AF_UNIX, SOCK_DGRAM, 0, fds))
perror_msg_and_skip("socketpair");
assert(0 == fds[0]);
assert(1 == fds[1]);
static const char w0_c[] = "012";
const char *w0_d = hexdump_strdup(w0_c);
void *w0 = tail_memdup(w0_c, LENGTH_OF(w0_c));
static const char w1_c[] = "34567";
const char *w1_d = hexdump_strdup(w1_c);
void *w1 = tail_memdup(w1_c, LENGTH_OF(w1_c));
static const char w2_c[] = "89abcde";
const char *w2_d = hexdump_strdup(w2_c);
void *w2 = tail_memdup(w2_c, LENGTH_OF(w2_c));
const struct iovec w0_iov_[] = {
{
.iov_base = w0,
.iov_len = LENGTH_OF(w0_c)
}, {
.iov_base = w1,
.iov_len = LENGTH_OF(w1_c)
}
};
struct iovec *w0_iov = tail_memdup(w0_iov_, sizeof(w0_iov_));
const struct iovec w1_iov_[] = {
{
.iov_base = w2,
.iov_len = LENGTH_OF(w2_c)
}
};
struct iovec *w1_iov = tail_memdup(w1_iov_, sizeof(w1_iov_));
const struct mmsghdr w_mmh_[] = {
{
.msg_hdr = {
.msg_iov = w0_iov,
.msg_iovlen = ARRAY_SIZE(w0_iov_),
}
}, {
.msg_hdr = {
.msg_iov = w1_iov,
.msg_iovlen = ARRAY_SIZE(w1_iov_),
}
}
};
void *w_mmh = tail_memdup(w_mmh_, sizeof(w_mmh_));
const unsigned int n_w_mmh = ARRAY_SIZE(w_mmh_);
int r = send_mmsg(1, w_mmh, n_w_mmh, MSG_DONTROUTE | MSG_NOSIGNAL);
if (r < 0)
perror_msg_and_skip("sendmmsg");
assert(r == (int) n_w_mmh);
assert(close(1) == 0);
tprintf("sendmmsg(1, [{msg_hdr={msg_name=NULL, msg_namelen=0"
", msg_iov=[{iov_base=\"%s\", iov_len=%u}"
", {iov_base=\"%s\", iov_len=%u}], msg_iovlen=%u"
", msg_controllen=0, msg_flags=0}, msg_len=%u}"
", {msg_hdr={msg_name=NULL, msg_namelen=0"
", msg_iov=[{iov_base=\"%s\", iov_len=%u}], msg_iovlen=%u"
", msg_controllen=0, msg_flags=0}, msg_len=%u}], %u"
", MSG_DONTROUTE|MSG_NOSIGNAL) = %d\n"
" = %u buffers in vector 0\n"
" * %u bytes in buffer 0\n"
" | 00000 %-49s %-16s |\n"
" * %u bytes in buffer 1\n"
" | 00000 %-49s %-16s |\n"
" = %u buffers in vector 1\n"
" * %u bytes in buffer 0\n"
" | 00000 %-49s %-16s |\n",
w0_c, LENGTH_OF(w0_c),
w1_c, LENGTH_OF(w1_c),
(unsigned int) ARRAY_SIZE(w0_iov_),
LENGTH_OF(w0_c) + LENGTH_OF(w1_c),
w2_c, LENGTH_OF(w2_c), (unsigned int) ARRAY_SIZE(w1_iov_),
LENGTH_OF(w2_c),
n_w_mmh, r,
(unsigned int) ARRAY_SIZE(w0_iov_),
LENGTH_OF(w0_c), w0_d, w0_c,
LENGTH_OF(w1_c), w1_d, w1_c,
(unsigned int) ARRAY_SIZE(w1_iov_),
LENGTH_OF(w2_c), w2_d, w2_c);
const unsigned int w_len =
LENGTH_OF(w0_c) + LENGTH_OF(w1_c) + LENGTH_OF(w2_c);
const unsigned int r_len = (w_len + 1) / 2;
void *r0 = tail_alloc(r_len);
void *r1 = tail_alloc(r_len);
void *r2 = tail_alloc(r_len);
const struct iovec r0_iov_[] = {
{
.iov_base = r0,
.iov_len = r_len
}
};
struct iovec *r0_iov = tail_memdup(r0_iov_, sizeof(r0_iov_));
const struct iovec r1_iov_[] = {
{
.iov_base = r1,
.iov_len = r_len
},
{
.iov_base = r2,
.iov_len = r_len
}
};
struct iovec *r1_iov = tail_memdup(r1_iov_, sizeof(r1_iov_));
const struct mmsghdr r_mmh_[] = {
{
.msg_hdr = {
.msg_iov = r0_iov,
.msg_iovlen = ARRAY_SIZE(r0_iov_),
}
}, {
.msg_hdr = {
.msg_iov = r1_iov,
.msg_iovlen = ARRAY_SIZE(r1_iov_),
}
}
};
void *r_mmh = tail_memdup(r_mmh_, sizeof(r_mmh_));
const unsigned int n_r_mmh = ARRAY_SIZE(r_mmh_);
static const char r0_c[] = "01234567";
const char *r0_d = hexdump_strdup(r0_c);
static const char r1_c[] = "89abcde";
const char *r1_d = hexdump_strdup(r1_c);
assert(recv_mmsg(0, r_mmh, n_r_mmh, MSG_DONTWAIT, NULL) == (int) n_r_mmh);
assert(close(0) == 0);
tprintf("recvmmsg(0, [{msg_hdr={msg_name=NULL, msg_namelen=0"
", msg_iov=[{iov_base=\"%s\", iov_len=%u}], msg_iovlen=%u"
", msg_controllen=0, msg_flags=0}, msg_len=%u}"
", {msg_hdr={msg_name=NULL, msg_namelen=0"
", msg_iov=[{iov_base=\"%s\", iov_len=%u}"
", {iov_base=\"\", iov_len=%u}], msg_iovlen=%u"
", msg_controllen=0, msg_flags=0}, msg_len=%u}], %u"
", MSG_DONTWAIT, NULL) = %d\n"
" = %u buffers in vector 0\n"
" * %u bytes in buffer 0\n"
" | 00000 %-49s %-16s |\n"
" = %u buffers in vector 1\n"
" * %u bytes in buffer 0\n"
" | 00000 %-49s %-16s |\n",
r0_c, r_len, (unsigned int) ARRAY_SIZE(r0_iov_),
LENGTH_OF(r0_c), r1_c, r_len, r_len,
(unsigned int) ARRAY_SIZE(r1_iov_), LENGTH_OF(r1_c),
n_r_mmh, r,
(unsigned int) ARRAY_SIZE(r0_iov_), LENGTH_OF(r0_c),
r0_d, r0_c,
(unsigned int) ARRAY_SIZE(r1_iov_), LENGTH_OF(r1_c),
r1_d, r1_c);
tprintf("+++ exited with 0 +++\n");
return 0;
}
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