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).
93 lines
1.9 KiB
C
93 lines
1.9 KiB
C
/* Duplicate an open file descriptor.
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Copyright (C) 2011-2025 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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#include <config.h>
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/* Specification. */
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#include <unistd.h>
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#include <errno.h>
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#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
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# include "msvc-inval.h"
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#endif
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#undef dup
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#if defined _WIN32 && !defined __CYGWIN__
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# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
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static int
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dup_nothrow (int fd)
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{
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int result;
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TRY_MSVC_INVAL
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{
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result = _dup (fd);
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}
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CATCH_MSVC_INVAL
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{
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result = -1;
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errno = EBADF;
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}
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DONE_MSVC_INVAL;
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return result;
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}
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# else
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# define dup_nothrow _dup
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# endif
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#elif defined __KLIBC__
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# include <fcntl.h>
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# include <sys/stat.h>
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# include <InnoTekLIBC/backend.h>
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static int
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dup_nothrow (int fd)
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{
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int dupfd;
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struct stat sbuf;
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dupfd = dup (fd);
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if (dupfd == -1 && errno == ENOTSUP \
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&& !fstat (fd, &sbuf) && S_ISDIR (sbuf.st_mode))
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{
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char path[_MAX_PATH];
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/* Get a path from fd */
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if (!__libc_Back_ioFHToPath (fd, path, sizeof (path)))
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dupfd = open (path, O_RDONLY);
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}
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return dupfd;
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}
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#else
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# define dup_nothrow dup
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#endif
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int
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rpl_dup (int fd)
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{
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int result = dup_nothrow (fd);
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#if REPLACE_FCHDIR
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if (result >= 0)
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result = _gl_register_dup (fd, result);
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#endif
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return result;
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}
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