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* [Bug regex/1227] New: regexec portability bug: code assumes reg_errcode_t is signed
@ 2005-08-21 4:58 eggert at gnu dot org
2005-08-21 4:59 ` [Bug regex/1227] " eggert at gnu dot org
2005-09-06 19:35 ` drepper at redhat dot com
0 siblings, 2 replies; 3+ messages in thread
From: eggert at gnu dot org @ 2005-08-21 4:58 UTC (permalink / raw)
To: glibc-bugs-regex
There's a portability bug in sift_states_bkref. The code assumes that
reg_errcode_t is a signed type that can represent -1, but this is not
necessarily true if _XOPEN_SOURCE is not defined, because in that case
reg_errcode_t is an enumerated type containing only nonnegative values,
and the C standard allows such types to be unsigned.
This problem was reported by Sam Steingold in
<http://lists.gnu.org/archive/html/bug-gnulib/2005-08/msg00007.html>.
I'll attach a patch.
--
Summary: regexec portability bug: code assumes reg_errcode_t is
signed
Product: glibc
Version: 2.3.5
Status: NEW
Severity: normal
Priority: P2
Component: regex
AssignedTo: gotom at debian dot or dot jp
ReportedBy: eggert at gnu dot org
CC: glibc-bugs-regex at sources dot redhat dot com,glibc-
bugs at sources dot redhat dot com
http://sources.redhat.com/bugzilla/show_bug.cgi?id=1227
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* [Bug regex/1227] regexec portability bug: code assumes reg_errcode_t is signed
2005-08-21 4:58 [Bug regex/1227] New: regexec portability bug: code assumes reg_errcode_t is signed eggert at gnu dot org
@ 2005-08-21 4:59 ` eggert at gnu dot org
2005-09-06 19:35 ` drepper at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: eggert at gnu dot org @ 2005-08-21 4:59 UTC (permalink / raw)
To: glibc-bugs-regex
------- Additional Comments From eggert at gnu dot org 2005-08-21 04:59 -------
Created an attachment (id=605)
--> (http://sources.redhat.com/bugzilla/attachment.cgi?id=605&action=view)
fixed bug with assigning int to reg_errcode_t
--
http://sources.redhat.com/bugzilla/show_bug.cgi?id=1227
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* [Bug regex/1227] regexec portability bug: code assumes reg_errcode_t is signed
2005-08-21 4:58 [Bug regex/1227] New: regexec portability bug: code assumes reg_errcode_t is signed eggert at gnu dot org
2005-08-21 4:59 ` [Bug regex/1227] " eggert at gnu dot org
@ 2005-09-06 19:35 ` drepper at redhat dot com
1 sibling, 0 replies; 3+ messages in thread
From: drepper at redhat dot com @ 2005-09-06 19:35 UTC (permalink / raw)
To: glibc-bugs-regex
------- Additional Comments From drepper at redhat dot com 2005-09-06 19:35 -------
The justification and changelog is wrong. The return value of
re_node_set_insert is simply not of that type. Fixed in trunk.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://sourceware.org/bugzilla/show_bug.cgi?id=1227
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end of thread, other threads:[~2005-09-06 19:35 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2005-08-21 4:58 [Bug regex/1227] New: regexec portability bug: code assumes reg_errcode_t is signed eggert at gnu dot org
2005-08-21 4:59 ` [Bug regex/1227] " eggert at gnu dot org
2005-09-06 19:35 ` drepper at redhat dot com
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