vasilito
068a1ca63e
Bootloader fork rebase:
- Base changed from 0.1.0 pre-patched archive to upstream 1.0.0 tag (c7eeb9f)
- Applied 0001-redbear-local-forks.patch (Cargo.toml crate path redirects)
- Applied fix-uefi-alloc-panic.patch equivalents (4 panic!() -> graceful
error handling in src/main.rs)
- Applied P5-live-preload-cap-1gib.patch (1 GiB cap on live image preload)
- Skipped: P0 GPT partition scan (requires new module + integration),
P1 timeout/default-resolution, P2 live preload guard (subsumed by
panic fixes + cap), P3 live image safe read, P4 large ISO boot,
redox.patch — to be applied in dedicated rebase session.
firmware-loader/Cargo.toml: version 0.1.0 -> 0.3.0 (sync with other
Red Bear custom crates which are at 0.3.0).
fork-upstream-map.toml: bootloader back from PENDING_REBASE to 1.0.0
since the partial rebase matches upstream 1.0.0 content.
fork-upstream-map.toml: base restored to 'main' tracked (was correctly
tracked by build-redbear.sh).
133 lines
3.6 KiB
C
133 lines
3.6 KiB
C
/* Convert 32-bit wide character to multibyte character.
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Copyright (C) 2020-2025 Free Software Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2020. */
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#include <config.h>
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/* Specification. */
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#include <uchar.h>
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#include <errno.h>
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#include <wchar.h>
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#include "attribute.h" /* FALLTHROUGH */
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#include "localcharset.h"
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#include "streq.h"
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#if GL_CHAR32_T_IS_UNICODE
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# include "lc-charset-unicode.h"
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#endif
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size_t
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c32rtomb (char *s, char32_t wc, mbstate_t *ps)
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#undef c32rtomb
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{
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#if HAVE_WORKING_MBRTOC32 && HAVE_WORKING_C32RTOMB
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# if C32RTOMB_RETVAL_BUG
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if (s == NULL)
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/* We know the NUL wide character corresponds to the NUL character. */
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return 1;
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# endif
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return c32rtomb (s, wc, ps);
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#elif _GL_SMALL_WCHAR_T
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if (s == NULL)
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return wcrtomb (NULL, 0, ps);
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else
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{
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/* Special-case all encodings that may produce wide character values
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> WCHAR_MAX. */
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const char *encoding = locale_charset ();
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if (STREQ_OPT (encoding, "UTF-8", 'U', 'T', 'F', '-', '8', 0, 0, 0, 0))
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{
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/* Special-case the UTF-8 encoding. Assume that the wide-character
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encoding in a UTF-8 locale is UCS-2 or, equivalently, UTF-16. */
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if (wc < 0x80)
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{
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s[0] = (unsigned char) wc;
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return 1;
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}
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else
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{
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int count;
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if (wc < 0x800)
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count = 2;
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else if (wc < 0x10000)
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{
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if (wc < 0xd800 || wc >= 0xe000)
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count = 3;
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else
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{
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errno = EILSEQ;
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return (size_t)(-1);
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}
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}
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else if (wc < 0x110000)
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count = 4;
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else
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{
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errno = EILSEQ;
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return (size_t)(-1);
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}
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switch (count) /* note: code falls through cases! */
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{
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case 4: s[3] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0x10000;
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FALLTHROUGH;
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case 3: s[2] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0x800;
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FALLTHROUGH;
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case 2: s[1] = 0x80 | (wc & 0x3f); wc = wc >> 6; wc |= 0xc0;
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/*case 1:*/ s[0] = wc;
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}
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return count;
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}
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}
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else
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{
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if ((wchar_t) wc == wc)
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return wcrtomb (s, (wchar_t) wc, ps);
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else
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{
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errno = EILSEQ;
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return (size_t)(-1);
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}
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}
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}
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#else
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/* char32_t and wchar_t are equivalent. */
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# if GL_CHAR32_T_IS_UNICODE && GL_CHAR32_T_VS_WCHAR_T_NEEDS_CONVERSION
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if (wc != 0)
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{
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wc = unicode_to_locale_encoding (wc);
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if (wc == 0)
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{
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errno = EILSEQ;
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return (size_t)(-1);
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}
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}
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# endif
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return wcrtomb (s, (wchar_t) wc, ps);
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#endif
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}
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