Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add a regression test to test passing of multiple file descriptors as 

Unix domain socket ancillary data.
This commit is contained in:
thorpej 1998-01-07 03:53:00 +00:00
parent ffbf065b53
commit 1ca58a0f3f
3 changed files with 210 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
regress/sys/kern/unfdpass/Makefile Normal file
View File

@ -0,0 +1,16 @@
# $NetBSD: Makefile,v 1.1 1998/01/07 03:53:00 thorpej Exp $
PROG= unfdpass
NOMAN= noman, no way, man
CLEANFILES+=file1 file2 output
regress:
@./unfdpass > output
@if ! cmp -s ${.CURDIR}/expected output; then \
echo "FAILED"; \
else \
echo "PASSED"; \
fi
.include <bsd.prog.mk>

2
regress/sys/kern/unfdpass/expected Normal file
View File

@ -0,0 +1,2 @@
This is file 1.
This is file 2.

192
regress/sys/kern/unfdpass/unfdpass.c Normal file
View File

@ -0,0 +1,192 @@
/* $NetBSD: unfdpass.c,v 1.1 1998/01/07 03:53:02 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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.
*/
/*
* Test passing of file descriptors over Unix domain sockets.
*/
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <sys/un.h>
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
int sock[2];
int main __P((int, char *[]));
void child __P((void));
struct cmessage {
struct cmsghdr cm;
int files[2];
};
/* ARGSUSED */
int
main(argc, argv)
int argc;
char *argv[];
{
struct msghdr msg;
int fd, i, status;
char fname[16], buf[64];
pid_t pid;
struct cmsghdr *cmp;
struct cmessage cm;
/*
* Create the test files.
*/
for (i = 0; i < 2; i++) {
(void) sprintf(fname, "file%d", i + 1);
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1)
err(1, "open %s", fname);
(void) sprintf(buf, "This is file %d.\n", i + 1);
if (write(fd, buf, strlen(buf)) != strlen(buf))
err(1, "write %s", fname);
(void) close(fd);
}
/*
* Create the socket pair to pass the descriptors over.
*/
if (socketpair(AF_LOCAL, SOCK_STREAM, 0, sock) == -1)
err(1, "socketpair");
pid = fork();
switch (pid) {
case -1:
err(1, "fork");
/* NOTREACHED */
case 0:
child();
/* NOTREACHED */
}
(void) close(sock[1]);
/*
* Open the files again, and pass them to the child over the socket.
*/
for (i = 0; i < 2; i++) {
(void) sprintf(fname, "file%d", i + 1);
if ((fd = open(fname, O_RDONLY, 0666)) == -1)
err(1, "open %s", fname);
cm.files[i] = fd;
}
(void) memset(&msg, 0, sizeof(msg));
msg.msg_control = (caddr_t) &cm;
msg.msg_controllen = sizeof(cm);
cmp = CMSG_FIRSTHDR(&msg);
cmp->cmsg_len = sizeof(cm);
cmp->cmsg_level = SOL_SOCKET;
cmp->cmsg_type = SCM_RIGHTS;
if (sendmsg(sock[0], &msg, 0)) {
warn("sendmsg");
(void) kill(pid, SIGINT);
}
/* Wait for the child to exit. */
if (waitpid(pid, &status, 0) == -1)
err(1, "waitpid");
if (WIFEXITED(status) && WEXITSTATUS(status) != 0)
errx(1, "child exited with status of %d\n",
WEXITSTATUS(status));
exit(0);
}
void
child()
{
struct msghdr msg;
char buf[64];
struct cmsghdr *cmp;
struct cmessage cm;
int i;
/*
* Close the socket we're not using.
*/
(void) close(sock[0]);
/*
* Grab the descriptors passed to us.
*/
(void) memset(&msg, 0, sizeof(msg));
msg.msg_control = (caddr_t) &cm;
msg.msg_controllen = sizeof(cm);
if (recvmsg(sock[1], &msg, 0) < 0)
err(1, "recvmsg");
cmp = CMSG_FIRSTHDR(&msg);
if (cmp->cmsg_len != sizeof(cm))
err(1, "bad control message length");
if (cmp->cmsg_level != SOL_SOCKET)
err(1, "bad control message level");
if (cmp->cmsg_type != SCM_RIGHTS)
err(1, "bad control message type");
/*
* Read the files and print their contents.
*/
for (i = 0; i < 2; i++) {
(void) memset(buf, 0, sizeof(buf));
if (read(cm.files[i], buf, sizeof(buf)) <= 0)
err(1, "read file %d", i + 1);
printf("%s", buf);
}
/*
* All done!
*/
exit(0);
}