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localedef: Fix ctype dump (fixed wide spread errors)

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This commit is from John Marino in dragonfly with the following commit log:

====
This was a CTYPE encoding error involving consecutive points of the same
ctype.  It was reported by myself to Illumos over a year ago but I was
unsure if it was only happening on BSD.  Given the cause, the bug is also
present on Illumos.

Basically, if consecutive points were of the exact same ctype, they would
be defined as a range regardless.  For example, all of these would be
considered equivalent:

  <A> ... <C>, <H>  (converts to <A> .. <H>)
  <A>, <B>, <H>     (converts to <A> .. <H>)
  <A>, <J> ... <H>  (converts to <A> .. <H>)

So all the points that shouldn't have been defined got "bridged" by the
extreme points.

The effects were recently reported to FreeBSD on PR 213013.  There are
countless places were the ctype flags are misdefined, so this is a major
fix that has to be MFC'd.
====

This reveals a bad change I did on the testsuite: while 0x07FF is a valid
unicode it is not used yet (reserved for future use)

PR:		213013
Submitted by:	marino@
Reported by:	Kurtis Rader <krader@skepticism.us>
Obtained from:	Dragonfly
MFC after:	1 month
This commit is contained in:
bapt 2016-10-06 19:46:43 +00:00
parent fc32cf9f50
commit 618160147f
2 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
contrib/netbsd-tests/lib/libc/locale/t_mbstowcs.c
View File

@ -88,7 +88,7 @@ static struct test {
0xFFFF, 0x5D, 0x5B, 0x10000, 0x10FFFF, 0x5D, 0x0A
},
#ifdef __FreeBSD__
{ 1, -1, -1, 1, 1, -1, 1, 1, 1, 1, -1, 1, 1, -1, -1,
{ 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, 1, 1, -1, -1,
#else
{ 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1,
#endif

6
usr.bin/localedef/ctype.c
View File

@ -407,9 +407,9 @@ dump_ctype(void)
continue;
}
if ((last_ct != NULL) && (last_ct->ctype == ctn->ctype)) {
if ((last_ct != NULL) && (last_ct->ctype == ctn->ctype) &&
(last_ct->wc + 1 == wc)) {
ct[rl.runetype_ext_nranges-1].max = wc;
last_ct = ctn;
} else {
rl.runetype_ext_nranges++;
ct = realloc(ct,
@ -417,8 +417,8 @@ dump_ctype(void)
ct[rl.runetype_ext_nranges - 1].min = wc;
ct[rl.runetype_ext_nranges - 1].max = wc;
ct[rl.runetype_ext_nranges - 1].map = ctn->ctype;
last_ct = ctn;
}
last_ct = ctn;
if (ctn->tolower == 0) {
last_lo = NULL;
} else if ((last_lo != NULL) &&