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

Mention additional restriction on ptrace: you can't ptrace system processes since the assumptions made for normal processes don't always hold (such as p_pptr is non-NULL).

This commit is contained in:
erh 2000-09-24 07:34:15 +00:00
parent 3392996d23
commit 52aa56b72d
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
lib/libc/sys/ptrace.2
View File

@ -1,4 +1,4 @@
.\" $NetBSD: ptrace.2,v 1.11 2000/07/27 21:40:09 jdolecek Exp $
.\" $NetBSD: ptrace.2,v 1.12 2000/09/24 07:34:15 erh Exp $
.\"
.\" This file is in the public domain.
.Dd November 7, 1994
@ -161,10 +161,11 @@ process is running as root, these restrictions do not apply.) The
tracing process will see the newly-traced process stop and may then
control it as if it had been traced all along.
.Pp
Two other restrictions apply to all tracing processes, even those
running as root. First, no process may trace the process running
Three other restrictions apply to all tracing processes, even those
running as root. First, no process may trace a system process.
Second, no process may trace the process running
.Xr init 8 .
Second, if a process has its root directory set with
Third, if a process has its root directory set with
.Xr chroot 2 ,
it may not trace another process unless that process's root directory
is at or below the tracing process's root.