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003 File Manager

Current Path: /usr/libexec/dwatch

📁 ..
📄 chmod(1.65 KB)
📄 errno(1.22 KB)
📄 fchmodat(1.65 KB)
📄 io(3.09 KB)
📄 io-done(3.09 KB)
📄 io-start(3.09 KB)
📄 ip(1.76 KB)
📄 ip-receive(1.76 KB)
📄 ip-send(1.76 KB)
📄 kill(1.19 KB)
📄 lchmod(1.65 KB)
📄 nanosleep(1.44 KB)
📄 open(1.48 KB)
📄 openat(1.48 KB)
📄 proc(3.88 KB)
📄 proc-create(3.88 KB)
📄 proc-exec(3.88 KB)
📄 proc-exec-failure(3.88 KB)
📄 proc-exec-success(3.88 KB)
📄 proc-exit(3.88 KB)
📄 proc-signal(3.88 KB)
📄 proc-signal-clear(3.88 KB)
📄 proc-signal-discard(3.88 KB)
📄 proc-signal-send(3.88 KB)
📄 proc-status(3.88 KB)
📄 read(1.8 KB)
📄 recv(6.32 KB)
📄 recvfrom(6.32 KB)
📄 recvmsg(6.32 KB)
📄 rw(1.8 KB)
📄 sched(2.9 KB)
📄 sched-change-pri(2.9 KB)
📄 sched-cpu(2.9 KB)
📄 sched-dequeue(2.9 KB)
📄 sched-enqueue(2.9 KB)
📄 sched-exec(2.9 KB)
📄 sched-lend-pri(2.9 KB)
📄 sched-load-change(2.9 KB)
📄 sched-off-cpu(2.9 KB)
📄 sched-on-cpu(2.9 KB)
📄 sched-preempt(2.9 KB)
📄 sched-pri(2.9 KB)
📄 sched-queue(2.9 KB)
📄 sched-remain-cpu(2.9 KB)
📄 sched-sleep(2.9 KB)
📄 sched-surrender(2.9 KB)
📄 sched-tick(2.9 KB)
📄 sched-wakeup(2.9 KB)
📄 send(6.32 KB)
📄 sendmsg(6.32 KB)
📄 sendrecv(6.32 KB)
📄 sendto(6.32 KB)
📄 systop(2.22 KB)
📄 tcp(5.37 KB)
📄 tcp-accept(5.37 KB)
📄 tcp-accept-established(5.37 KB)
📄 tcp-accept-refused(5.37 KB)
📄 tcp-connect(5.37 KB)
📄 tcp-connect-established(5.37 KB)
📄 tcp-connect-refused(5.37 KB)
📄 tcp-connect-request(5.37 KB)
📄 tcp-established(5.37 KB)
📄 tcp-init(5.37 KB)
📄 tcp-io(5.37 KB)
📄 tcp-receive(5.37 KB)
📄 tcp-refused(5.37 KB)
📄 tcp-send(5.37 KB)
📄 tcp-state-change(5.37 KB)
📄 tcp-status(5.37 KB)
📄 udp(2.29 KB)
📄 udp-receive(2.29 KB)
📄 udp-send(2.29 KB)
📄 udplite(2.35 KB)
📄 udplite-receive(2.35 KB)
📄 udplite-send(2.35 KB)
📄 vop_create(4.96 KB)
📄 vop_lookup(4.96 KB)
📄 vop_mkdir(4.96 KB)
📄 vop_mknod(4.96 KB)
📄 vop_readdir(4.71 KB)
📄 vop_remove(4.96 KB)
📄 vop_rename(8.11 KB)
📄 vop_rmdir(4.96 KB)
📄 vop_symlink(5.04 KB)
📄 write(1.8 KB)

Editing: read

# -*- tab-width: 4 -*- ;; Emacs
# vi: set filetype=sh tabstop=8 shiftwidth=8 noexpandtab :: Vi/ViM
############################################################ IDENT(1)
#
# $Title: dwatch(8) module for read(2), write(2), or similar entry $
# $Copyright: 2014-2018 Devin Teske. All rights reserved. $
# $FreeBSD$
#
############################################################ DESCRIPTION
#
# Display data sent/received when read(2)/write(2) occurs
#
############################################################ PROBE

case "$PROFILE" in
rw) : ${PROBE:=syscall::read:entry, syscall::write:entry} ;;
 *) : ${PROBE:=syscall::$PROFILE:entry}
esac

############################################################ ACTIONS

exec 9<<EOF
this size_t nbytes;
this string bufstr;
this string flow;
this void * buf;
this void * data;

$PROBE /* probe ID $ID */
{${TRACE:+
	printf("<$ID>");
}
	/*
	 * R/W
	 */
	this->flow = probefunc == "read" ? "<-" : "->";
	this->buf = (void *)arg1;
	this->nbytes = (size_t)arg2;

/*
	 * Allocate temporary memory for, copy, and NUL-terminate the data
	 */
	this->data = alloca(this->nbytes + 1);
	copyinto((uintptr_t)this->buf, this->nbytes, this->data);
	bcopy("\0", (void *)((uintptr_t)this->data + this->nbytes), 1);

/*
	 * Extract string from temporary memory
	 */
	this->bufstr = stringof(this->data);
}
EOF
ACTIONS=$( cat <&9 )
ID=$(( $ID + 1 ))

############################################################ EVENT DETAILS

if [ ! "$CUSTOM_DETAILS" ]; then
exec 9<<EOF
	/*
	 * Print read/write details
	 */
	printf("%s \"%s\" %d byte%s",
		this->flow,
		this->bufstr,
		this->nbytes,
		this->nbytes == 1 ? "" : "s");
EOF
EVENT_DETAILS=$( cat <&9 )
fi

################################################################################
# END
################################################################################

003 File Manager

Editing: read

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