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* [Bug libc/13515] New: pthread_getname_np(th_id, ...) return weird result when called by another thread than [th_id]
@ 2011-12-18 9:48 misterwallas at yahoo dot fr
2011-12-22 0:27 ` [Bug libc/13515] " drepper.fsp at gmail dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: misterwallas at yahoo dot fr @ 2011-12-18 9:48 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13515
Bug #: 13515
Summary: pthread_getname_np(th_id, ...) return weird result
when called by another thread than [th_id]
Product: glibc
Version: 2.13
Status: NEW
Severity: normal
Priority: P2
Component: libc
AssignedTo: drepper.fsp@gmail.com
ReportedBy: misterwallas@yahoo.fr
Classification: Unclassified
Created attachment 6116
--> http://sourceware.org/bugzilla/attachment.cgi?id=6116
[pthread_getname_np] test program
When pthread_getname_np(th_id, ...) is called from the thread [th_id] the
result is fine. When called from another thread the result is "right padded" by
weird characters (often '\n' but others in general).
Find a simple test program in attachement.
Regards
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* [Bug libc/13515] pthread_getname_np(th_id, ...) return weird result when called by another thread than [th_id]
2011-12-18 9:48 [Bug libc/13515] New: pthread_getname_np(th_id, ...) return weird result when called by another thread than [th_id] misterwallas at yahoo dot fr
@ 2011-12-22 0:27 ` drepper.fsp at gmail dot com
2011-12-22 10:06 ` misterwallas at yahoo dot fr
2014-06-27 11:28 ` fweimer at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: drepper.fsp at gmail dot com @ 2011-12-22 0:27 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13515
Ulrich Drepper <drepper.fsp at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #1 from Ulrich Drepper <drepper.fsp at gmail dot com> 2011-12-22 00:27:00 UTC ---
I checked in a patch.
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* [Bug libc/13515] pthread_getname_np(th_id, ...) return weird result when called by another thread than [th_id]
2011-12-18 9:48 [Bug libc/13515] New: pthread_getname_np(th_id, ...) return weird result when called by another thread than [th_id] misterwallas at yahoo dot fr
2011-12-22 0:27 ` [Bug libc/13515] " drepper.fsp at gmail dot com
@ 2011-12-22 10:06 ` misterwallas at yahoo dot fr
2014-06-27 11:28 ` fweimer at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: misterwallas at yahoo dot fr @ 2011-12-22 10:06 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=13515
--- Comment #2 from misterwallas at yahoo dot fr 2011-12-22 10:05:59 UTC ---
Hi Ulrich,
Thanks for the patch.
Just few questions - I may be wrong because I could not find any documentation
on the [read_not_cancel] function.
My questions:
1) In the case of [read_not_cancel] return zero (n == 0) would the statement
buf[n - 1] = '\0' cause an access violation?
2) It seems that the problem is that [read_not_cancel] return an "unwanted"
'\n' also could it be another "unwanted" char?
Anyway, thanks again.
==================================================================
ssize_t n = TEMP_FAILURE_RETRY (read_not_cancel (fd, buf, len));
if (n < 0)
res = errno;
+ else
+ {
+ if (buf[n - 1] == '\n')
+ buf[n - 1] = '\0';
+ else if (n == len)
+ res = ERANGE;
+ else
+ buf[n] = '\0';
+ }
close_not_cancel_no_status (fd);
==================================================================
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* [Bug libc/13515] pthread_getname_np(th_id, ...) return weird result when called by another thread than [th_id]
2011-12-18 9:48 [Bug libc/13515] New: pthread_getname_np(th_id, ...) return weird result when called by another thread than [th_id] misterwallas at yahoo dot fr
2011-12-22 0:27 ` [Bug libc/13515] " drepper.fsp at gmail dot com
2011-12-22 10:06 ` misterwallas at yahoo dot fr
@ 2014-06-27 11:28 ` fweimer at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: fweimer at redhat dot com @ 2014-06-27 11:28 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=13515
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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end of thread, other threads:[~2014-06-27 11:28 UTC | newest]
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-- links below jump to the message on this page --
2011-12-18 9:48 [Bug libc/13515] New: pthread_getname_np(th_id, ...) return weird result when called by another thread than [th_id] misterwallas at yahoo dot fr
2011-12-22 0:27 ` [Bug libc/13515] " drepper.fsp at gmail dot com
2011-12-22 10:06 ` misterwallas at yahoo dot fr
2014-06-27 11:28 ` fweimer at redhat dot com
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