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79 lines
2.3 KiB
Bash
Executable file
79 lines
2.3 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2017 Dell EMC Isilon
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# All rights reserved.
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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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# pts leak seen.
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# Fixed in r313496.
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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kldstat -v | grep -q pty || { kldload pty || exit 0; }
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. ../default.cfg
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here=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $here/$0 > pts2.c
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mycc -o pts2 -Wall -Wextra -O2 pts2.c || exit 1
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rm -f pts2.c
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pts=`vmstat -m | grep pts | awk '{print $2}'`
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for i in `jot 10`; do
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/tmp/pts2
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done
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new=`vmstat -m | grep pts | awk '{print $2}'`
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s=0
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[ $((new - pts)) -gt 1 ] && { s=1; echo "Leaked $((new - pts)) pts."; }
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rm -f /tmp/pts2
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exit $s
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EOF
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#include <sys/ioctl.h>
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#include <err.h>
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#include <fcntl.h>
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#include <stdio.h>
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const char *master = "/dev/ptmx";
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int
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main(void)
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{
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int fd, fd2, slave;
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char sl[80];
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if ((fd = open(master, O_RDONLY)) == -1)
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err(1, "open(%s)", master);
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if (ioctl(fd, TIOCGPTN, &slave) == -1)
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err(1, "ioctl");
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snprintf(sl, sizeof(sl), "/dev/pts/%d", slave);
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if ((fd2 = open(sl, O_RDONLY | O_EXLOCK)) == -1)
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err(1, "open(%s)", sl);
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return (0);
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}
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