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Bug #3154

closed

Nonconforming tolower and toupper with UTF-8 locales

Added by Bernardo Signori about 9 years ago. Updated about 9 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
-
Category:
cmd - userland programs
Start date:
2012-09-05
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:

Description

With any UTF-8 locale, tolower and toupper return null when passed an argument that is an invalid UTF-8 character. My understanding of the c standard is than any "arguments in the domain" that have no corresponding lowercase (or uppercase) letter should be returned unchanged.

Files

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test.c (395 Bytes) test.c test case Bernardo Signori, 2012-09-05 02:06 PM
test2.c (525 Bytes) test2.c better test case Bernardo Signori, 2012-09-05 02:32 PM
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 #1

Updated by Yuri Pankov about 9 years ago

What's the testcase?

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 #2

Updated by Igor Pashev about 9 years ago

"an invalid UTF-8 character" != "have no corresponding lowercase (or uppercase) letter"

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 #3

Updated by Bernardo Signori about 9 years ago

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 #4

Updated by Yuri Pankov about 9 years ago

Indeed.

debian:yuri:~$ uname -a
Linux debian 2.6.32-5-amd64 #1 SMP Sun May 6 04:00:17 UTC 2012 x86_64 GNU/Linux
debian:yuri:~$ ./test
tolower test PASS
toupper test PASS

phoenix:yuri:~$ uname -a
FreeBSD phoenix.xvoid.org 10.0-CURRENT FreeBSD 10.0-CURRENT #0 r240078: Tue Sep  4 07:38:03 MSK 2012     yuri@phoenix.xvoid.org:/usr/obj/data/src/freebsd/head/sys/PHOENIX  amd64
phoenix:yuri:~$ ./test
tolower test PASS
toupper test PASS

sirius:yuri:~$ uname -a
SunOS sirius 5.11 tzdata2012e i86pc i386 i86pc
sirius:yuri:~$ ./test
tolower test FAIL
toupper test FAIL

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 #5

Updated by Bernardo Signori about 9 years ago

Updated the test to make sure the locale changed, otherwise the tests may pass because the locale is still C.

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 #6

Updated by David Höppner about 9 years ago

Seems to be a bug in localedef.

Could it be that ctypes contains not all values < _CACHED_RUNES? And
the identity map will so not be complete?

for (ctn = avl_first(&ctypes); ctn; ctn = AVL_NEXT(&ctypes, ctn)) {

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 #7

Updated by David Höppner about 9 years ago

  • Status changed from New to In Progress
  • % Done changed from 0 to 70
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 #8

Updated by Rich Lowe about 9 years ago

  • Category set to cmd - userland programs
  • Status changed from In Progress to Resolved
  • % Done changed from 70 to 100
  • Tags deleted (needs-triage)

Resolved in r13844 commit:90142813f484

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