public inbox for glibc-bugs@sourceware.org help / color / mirror / Atom feed
* [Bug time/29396] New: strftime should set errno on failure
@ 2022-07-23 1:52 jscott at posteo dot net
2022-07-23 1:53 ` [Bug time/29396] " jscott at posteo dot net
2022-07-23 2:45 ` [Bug time/29396] strftime should set errno to ERANGE " jscott at posteo dot net
0 siblings, 2 replies; 3+ messages in thread
From: jscott at posteo dot net @ 2022-07-23 1:52 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=29396
Bug ID: 29396
Summary: strftime should set errno on failure
Product: glibc
Version: 2.36
Status: UNCONFIRMED
Severity: minor
Priority: P2
Component: time
Assignee: unassigned at sourceware dot org
Reporter: jscott at posteo dot net
Target Milestone: ---
Hi,
Right now, there is no way to distinguish the buffer being too small from other
causes of error in strftime(), so there's no way for a caller to know whether
it should allocate a larger buffer and try again. POSIX Issue 8 is slated to
require that errno be set to ERANGE when the output buffer isn't big enough,
and also that errno be set in other failure situations. I think glibc should
adopt this behavior even if it weren't to be standardized since it's valuable
to application developers such as myself.
Thanks for your attention to this matter :)
--
You are receiving this mail because:
You are on the CC list for the bug.
^ permalink raw reply [flat|nested] 3+ messages in thread* [Bug time/29396] strftime should set errno on failure 2022-07-23 1:52 [Bug time/29396] New: strftime should set errno on failure jscott at posteo dot net @ 2022-07-23 1:53 ` jscott at posteo dot net 2022-07-23 2:45 ` [Bug time/29396] strftime should set errno to ERANGE " jscott at posteo dot net 1 sibling, 0 replies; 3+ messages in thread From: jscott at posteo dot net @ 2022-07-23 1:53 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=29396 John Scott <jscott at posteo dot net> changed: What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://austingroupbugs.net | |/view.php?id=1386 -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug time/29396] strftime should set errno to ERANGE on failure 2022-07-23 1:52 [Bug time/29396] New: strftime should set errno on failure jscott at posteo dot net 2022-07-23 1:53 ` [Bug time/29396] " jscott at posteo dot net @ 2022-07-23 2:45 ` jscott at posteo dot net 1 sibling, 0 replies; 3+ messages in thread From: jscott at posteo dot net @ 2022-07-23 2:45 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=29396 John Scott <jscott at posteo dot net> changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|minor |enhancement Summary|strftime should set errno |strftime should set errno |on failure |to ERANGE on failure --- Comment #1 from John Scott <jscott at posteo dot net> --- It was pointed out to me by [Rich Felker](https://www.openwall.com/lists/musl/2022/07/23/2) that strftime is required to succeed as long as the output buffer is large enough. Sorry for the noise, I'm downgrading this to an enhancement -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-07-23 2:45 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-07-23 1:52 [Bug time/29396] New: strftime should set errno on failure jscott at posteo dot net 2022-07-23 1:53 ` [Bug time/29396] " jscott at posteo dot net 2022-07-23 2:45 ` [Bug time/29396] strftime should set errno to ERANGE " jscott at posteo dot net
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).