From: Bart Trojanowski <bart@jukie.net>
To: notmuch@notmuchmail.org
Cc: Bart Trojanowski <bart@jukie.net>
Subject: [PATCH RFC] debugger: detect presence of ptrace type debuggers
Date: Fri, 27 Nov 2009 22:11:04 -0500 [thread overview]
Message-ID: <1259377864-2523-1-git-send-email-bart@jukie.net> (raw)
According to the internet [1], this is a more reliable way of detecting if
one is under the spell of a debugger. Should work for ptrace, strace,
gdb, etc. Basically anything that uses the ptrace() syscall.
[1] http://vx.netlux.org/lib/vsc04.html
---
debugger.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/debugger.c b/debugger.c
index e8b9378..f486032 100644
--- a/debugger.c
+++ b/debugger.c
@@ -22,6 +22,8 @@
#include <libgen.h>
+#include <sys/ptrace.h>
+
#if HAVE_VALGRIND
#include <valgrind.h>
#else
@@ -36,6 +38,9 @@ debugger_is_active (void)
if (RUNNING_ON_VALGRIND)
return TRUE;
+ if (ptrace(PTRACE_TRACEME, 0, 1, 0) < 0)
+ return TRUE;
+
sprintf (buf, "/proc/%d/exe", getppid ());
if (readlink (buf, buf, sizeof (buf)) != -1 &&
strncmp (basename (buf), "gdb", 3) == 0)
--
1.6.4.4.2.gc2f148
next reply other threads:[~2009-11-28 3:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-28 3:11 Bart Trojanowski [this message]
2009-11-28 6:17 ` [PATCH RFC] debugger: detect presence of ptrace type debuggers Carl Worth
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://notmuchmail.org/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1259377864-2523-1-git-send-email-bart@jukie.net \
--to=bart@jukie.net \
--cc=notmuch@notmuchmail.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://yhetil.org/notmuch.git/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).