mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 23:13:34 +00:00
ebf784d4f5
- Introduce ualarm() function - Make rename() report EISEMPTY on Windows - Always raise EINVAL upon open(O_RDONLY|O_TRUNC) - Add macro so ./configure will detect SOCK_CLOEXEC - Fix O_TRUNC without O_CREAT not working on Windows - Let fcntl(F_SETFL) change O_APPEND status on Windows - Make sure pwrite() / pread() report ESPIPE on sockets - Raise ESPIPE on Windows when pwrite() is used on pipe - Properly compute O_APPEND CreateFile() flags on Windows - Don't require O_DIRECTORY to open directories on Windows - Fix more instances of Windows reporting EISDIR and ENOTDIR - Normalize EFTYPE and EMLINK to ELOOP on NetBSD and FreeBSD - Make unlink() / rmdir() work on read-only files on Windows - Validate UTF-8 on Windows paths to fix bug with overlong NUL - Always print signal name to stderr when crashing due to SIG_DFL - Fix Windows bug where denormalized paths >260 chars didn't work - Block signals on BSDs when thread exits before trashing its own stack
80 lines
3.6 KiB
C
80 lines
3.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/internal.h"
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#include "libc/calls/state.internal.h"
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#include "libc/calls/syscall_support-nt.internal.h"
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#include "libc/nt/createfile.h"
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#include "libc/nt/enum/accessmask.h"
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#include "libc/nt/enum/creationdisposition.h"
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#include "libc/nt/enum/fileflagandattributes.h"
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#include "libc/nt/ipc.h"
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#include "libc/nt/runtime.h"
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#include "libc/sysv/consts/limits.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/errfuns.h"
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textwindows int sys_pipe_nt(int pipefd[2], unsigned flags) {
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uint32_t mode;
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int64_t hin, hout;
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int reader, writer;
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char16_t pipename[64];
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__create_pipe_name(pipename);
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__fds_lock();
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if ((reader = __reservefd_unlocked(-1)) == -1) {
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__fds_unlock();
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return -1;
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}
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if ((writer = __reservefd_unlocked(-1)) == -1) {
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__releasefd(reader);
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__fds_unlock();
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return -1;
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}
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if (~flags & O_DIRECT) {
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mode = kNtPipeTypeByte | kNtPipeReadmodeByte;
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} else {
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mode = kNtPipeTypeMessage | kNtPipeReadmodeMessage;
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}
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__fds_unlock();
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hin = CreateNamedPipe(pipename, kNtPipeAccessInbound | kNtFileFlagOverlapped,
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mode, 1, PIPE_BUF, PIPE_BUF, 0, &kNtIsInheritable);
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__fds_lock();
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if (hin != -1) {
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if ((hout = CreateFile(pipename, kNtGenericWrite, 0, &kNtIsInheritable,
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kNtOpenExisting, kNtFileFlagOverlapped, 0)) != -1) {
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g_fds.p[reader].kind = kFdFile;
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g_fds.p[reader].flags = O_RDONLY | flags;
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g_fds.p[reader].mode = 0010444;
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g_fds.p[reader].handle = hin;
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g_fds.p[writer].kind = kFdFile;
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g_fds.p[writer].flags = O_WRONLY | flags;
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g_fds.p[writer].mode = 0010222;
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g_fds.p[writer].handle = hout;
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pipefd[0] = reader;
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pipefd[1] = writer;
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__fds_unlock();
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return 0;
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} else {
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CloseHandle(hin);
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}
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}
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__releasefd(writer);
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__releasefd(reader);
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__fds_unlock();
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return -1;
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}
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