The below text is quoted from the latest POSIX draft:
: The values of locale categories shall be determined by a precedence
: order; the first condition met below determines the value:
:
: 1. If the LC_ALL environment variable is defined and is not null,
: the value of LC_ALL shall be used.
: 2. If the LC_* environment variable (LC_COLLATE, LC_CTYPE, LC_MESSAGES,
: LC_MONETARY, LC_NUMERIC, LC_TIME) is defined and is not null, the
: value of the environment variable shall be used to initialize the
: category that corresponds to the environment variable.
: 3. If the LANG environment variable is defined and is not null, the
: value of the LANG environment variable shall be used.
: 4. If the LANG environment variable is not set or is set to the empty
: string, the implementation-defined default locale shall be used.
The conditions 1 and 2 were interchanged, i.e., LC_* were looked first,
then LC_ALL, then LANG (note that LC_ALL and LANG were essentially the
same, providing the default, with LC_ALL taking precedence over LANG).
Now, LC_ALL and LANG serve the different purposes. LC_ALL overrides
any LC_*, and LANG provides the default fallback.
Testcase:
/usr/bin/env LC_ALL=C LC_TIME=de_DE.ISO_8859-1 /bin/date
Should return date in the "C" locale format.
Inspired by: date(1) reference page in the Draft
LC_NUMERIC::grouping) values.
. Always set __XXX_changed flags then loading numeric & monetary locale
categories to allow localeconv() to use C locale also.
LC_NUMERIC fields, but only for *grouping fields - other fields are converted
to a chars in localeconv(), so final change is:
"-1" -> "127"
127 here is because CHAR_MAX supposed, which is _positive_ (SUSv2 requirement),
not negative as 255. It is still a bit of hack. To find real CHAR_MAX will be
better to sprintf() it once somewhere in static buffer. *grouping parsing
still broken and missing and needs to be implemented.
LC_MONETARY, LC_NUMERIC are byte-arrays, not ASCII strings!
Fix "C" locale, change "-1" to {CHAR_MAX, '\0'} according to standards.
This is only partial fix - locale loading procedure remains broken as before
and load too big values for all locales. All numeric strings there should be
converted with something like atoi() and placed into bytes. Maybe I do it
later, if someone will not fix it faster.
adding (weak definitions to) stubs for some of the pthread
functions. If the threads library is linked in, the real
pthread functions will pulled in.
Use the following convention for system calls wrapped by the
threads library:
__sys_foo - actual system call
_foo - weak definition to __sys_foo
foo - weak definition to __sys_foo
Change all libc uses of system calls wrapped by the threads
library from foo to _foo. In order to define the prototypes
for _foo(), we introduce namespace.h and un-namespace.h
(suggested by bde). All files that need to reference these
system calls, should include namespace.h before any standard
includes, then include un-namespace.h after the standard
includes and before any local includes. <db.h> is an exception
and shouldn't be included in between namespace.h and
un-namespace.h namespace.h will define foo to _foo, and
un-namespace.h will undefine foo.
Try to eliminate some of the recursive calls to MT-safe
functions in libc/stdio in preparation for adding a mutex
to FILE. We have recursive mutexes, but would like to avoid
using them if possible.
Remove uneeded includes of <errno.h> from a few files.
Add $FreeBSD$ to a few files in order to pass commitprep.
Approved by: -arch
be used to point to a bad locale file. This is only believed to be a
minor security risk - the only risk is if some program uses the result
of a localized string as a format specifier in a vulnerable function
like sprintf(). No such code is believed to exist in the FreeBSD base
system, although it is possible that badly written third party code
would do that.
Submitted by: imp
Approved by: ache
