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Update Musl Libc code

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We now have implement all of Musl's localization code, the same way that
Musl implements localization. You may need setlocale(LC_ALL, "C.UTF-8"),
just in case anything stops working as expected.
This commit is contained in:
Justine Tunney 2024-07-30 09:14:57 -07:00
parent d0360bf4bd
commit bb815eafaf
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116 changed files with 6525 additions and 5523 deletions
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83
third_party/musl/mbsnrtowcs.c vendored Normal file
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/*-*- mode:c;indent-tabs-mode:t;c-basic-offset:8;tab-width:8;coding:utf-8 -*-│
│ vi: set noet ft=c ts=8 sw=8 fenc=utf-8 :vi │
╚──────────────────────────────────────────────────────────────────────────────╝
│ │
│ Musl Libc │
│ Copyright © 2005-2014 Rich Felker, et al. │
│ │
│ Permission is hereby granted, free of charge, to any person obtaining │
│ a copy of this software and associated documentation files (the │
│ "Software"), to deal in the Software without restriction, including │
│ without limitation the rights to use, copy, modify, merge, publish, │
│ distribute, sublicense, and/or sell copies of the Software, and to │
│ permit persons to whom the Software is furnished to do so, subject to │
│ the following conditions: │
│ │
│ The above copyright notice and this permission notice shall be │
│ included in all copies or substantial portions of the Software. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, │
│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF │
│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. │
│ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY │
│ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, │
│ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE │
│ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. │
│ │
╚─────────────────────────────────────────────────────────────────────────────*/
#include <wchar.h>
__static_yoink("musl_libc_notice");
size_t mbsnrtowcs(wchar_t *restrict wcs, const char **restrict src, size_t n, size_t wn, mbstate_t *restrict st)
{
size_t l, cnt=0, n2;
wchar_t *ws, wbuf[256];
const char *s = *src;
const char *tmp_s;
if (!wcs) ws = wbuf, wn = sizeof wbuf / sizeof *wbuf;
else ws = wcs;
/* making sure output buffer size is at most n/4 will ensure
* that mbsrtowcs never reads more than n input bytes. thus
* we can use mbsrtowcs as long as it's practical.. */
while ( s && wn && ( (n2=n/4)>=wn || n2>32 ) ) {
if (n2>=wn) n2=wn;
tmp_s = s;
l = mbsrtowcs(ws, &s, n2, st);
if (!(l+1)) {
cnt = l;
wn = 0;
break;
}
if (ws != wbuf) {
ws += l;
wn -= l;
}
n = s ? n - (s - tmp_s) : 0;
cnt += l;
}
if (s) while (wn && n) {
l = mbrtowc(ws, s, n, st);
if (l+2<=2) {
if (!(l+1)) {
cnt = l;
break;
}
if (!l) {
s = 0;
break;
}
/* have to roll back partial character */
*(unsigned *)st = 0;
break;
}
s += l; n -= l;
/* safe - this loop runs fewer than sizeof(wbuf)/8 times */
ws++; wn--;
cnt++;
}
if (wcs) *src = s;
return cnt;
}