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Add sendmsg and recvmsg (#148)

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fabriziobertocci 2021-04-08 01:53:23 -04:00 • committed by GitHub
parent da8a08fd58
commit 24d79599cc
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5 changed files with 184 additions and 2 deletions
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test/libc/sock/sendrecvmsg_test.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2021 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/dce.h"
#include "libc/sock/sock.h"
#include "libc/sysv/consts/af.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/sock.h"
#include "libc/testlib/testlib.h"
#include "libc/runtime/gc.internal.h"
#include "libc/x/x.h"
TEST(sendrecvmsg, testPingPong) {
int fd[2];
const char hello[] = "HELLO";
const char world[] = "WORLD";
struct msghdr msg;
struct iovec data[2];
const uint32_t hwLen = strlen(hello)+strlen(world);
memset(&msg, 0, sizeof(msg));
memset(&data[0], 0, sizeof(data));
data[0].iov_base = hello;
data[0].iov_len = strlen(hello);
data[1].iov_base = world;
data[1].iov_len = strlen(world); /* Don't send the '\0' */
msg.msg_iov = &data[0];
msg.msg_iovlen = 2;
ASSERT_NE(-1, socketpair(AF_UNIX, SOCK_STREAM, 0, fd));
ASSERT_EQ(hwLen, sendmsg(fd[0], &msg, 0));
data[0].iov_base = gc(xcalloc(20, 1));
data[0].iov_len = 20;
msg.msg_iovlen = 1;
ASSERT_EQ(hwLen, recvmsg(fd[1], &msg, 0));
EXPECT_STREQ("HELLOWORLD", msg.msg_iov[0].iov_base);
ASSERT_NE(-1, close(fd[0]));
ASSERT_NE(-1, close(fd[1]));
}