3b41d99d76
Reviewed by: markj Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D25431
148 lines
3.5 KiB
C
148 lines
3.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2020 Netflix, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <sys/uio.h>
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#include <netinet/in.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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static int ls;
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static char buf[1024*1024];
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static volatile bool accept_done = false;
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static volatile bool read_done = false;
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static void *
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server(void *arg)
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{
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struct sockaddr_in sin;
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ssize_t rv;
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socklen_t slen;
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int ss;
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ssize_t readlen = (uintptr_t)arg;
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slen = sizeof(sin);
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ss = accept(ls, (void *)&sin, &slen);
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if (ss < 0)
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err(1, "accept ls");
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accept_done = true;
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do {
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rv = read(ss, buf, sizeof(buf));
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if (rv == -1)
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err(2, "read receiver");
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if (rv == 0)
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break;
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readlen -= rv;
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} while (readlen != 0);
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read_done = true;
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return NULL;
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}
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int
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main(int argc, char **argv)
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{
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pthread_t pt;
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struct sockaddr_in sin;
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off_t start, len;
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socklen_t slen;
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int fd, cs, on, flags, error;
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if (argc != 5)
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errx(1, "usage: %s <file> <start> <len> <flags>",
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getprogname());
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start = strtoull(argv[2], NULL, 0);
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len = strtoull(argv[3], NULL, 0);
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flags = strtoul(argv[4], NULL, 0);
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fd = open(argv[1], O_RDONLY);
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if (fd < 0)
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err(1, "open");
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ls = socket(PF_INET, SOCK_STREAM, 0);
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if (ls < 0)
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err(1, "socket ls");
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on = 1;
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if (setsockopt(ls, SOL_SOCKET, SO_REUSEADDR, (void *)&on,
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(socklen_t)sizeof(on)) < 0)
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err(1, "SO_REUSEADDR");
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sin.sin_len = sizeof(sin);
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sin.sin_family = AF_INET;
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sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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sin.sin_port = 0;
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if (bind(ls, (void *)&sin, sizeof(sin)) < 0)
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err(1, "bind ls");
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slen = sizeof(sin);
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if (getsockname(ls, (void *)&sin, &slen) < 0)
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err(1, "getsockname");
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if (listen(ls, 5) < 0)
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err(1, "listen ls");
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error = pthread_create(&pt, NULL, server, (void *)(uintptr_t)len);
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if (error)
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errc(1, error, "pthread_create");
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cs = socket(PF_INET, SOCK_STREAM, 0);
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if (cs < 0)
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err(1, "socket cs");
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if (connect(cs, (void *)&sin, sizeof(sin)) < 0)
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err(1, "connect cs");
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while (!accept_done)
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usleep(1000);
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if (sendfile(fd, cs, start, len, NULL, NULL, flags) < 0)
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err(3, "sendfile");
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while (!read_done)
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usleep(1000);
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exit(0);
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}
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