mirror of
https://github.com/jart/cosmopolitan.git
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2046c0d2ae
- Expand redbean UNIX module - Expand redbean documentation - Ensure Lua copyright is embedded in binary - Increase the PATH_MAX limit especially on NT - Use column major sorting for linenoise completions - Fix some suboptimalities in redbean's new UNIX API - Figured out right flags for Multics newline in raw mode
101 lines
4.7 KiB
C
101 lines
4.7 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/assert.h"
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#include "libc/calls/internal.h"
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#include "libc/calls/ntmagicpaths.internal.h"
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#include "libc/calls/strace.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/enum/filesharemode.h"
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#include "libc/nt/enum/filetype.h"
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#include "libc/nt/enum/fsctl.h"
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#include "libc/nt/errors.h"
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#include "libc/nt/files.h"
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#include "libc/nt/runtime.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/at.h"
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#include "libc/sysv/consts/fileno.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/errfuns.h"
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static textwindows int64_t sys_open_nt_impl(int dirfd, const char *path,
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uint32_t flags, int32_t mode) {
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char16_t path16[PATH_MAX + 1];
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uint32_t perm, share, disp, attr;
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if (__mkntpathat(dirfd, path, flags, path16) == -1) return -1;
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if (GetNtOpenFlags(flags, mode, &perm, &share, &disp, &attr) == -1) return -1;
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return __fix_enotdir(
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CreateFile(path16, perm, share, &kNtIsInheritable, disp, attr, 0),
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path16);
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}
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static textwindows ssize_t sys_open_nt_console(int dirfd,
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const struct NtMagicPaths *mp,
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uint32_t flags, int32_t mode,
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size_t fd) {
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if (GetFileType(g_fds.p[STDIN_FILENO].handle) == kNtFileTypeChar &&
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GetFileType(g_fds.p[STDOUT_FILENO].handle) == kNtFileTypeChar) {
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g_fds.p[fd].handle = g_fds.p[STDIN_FILENO].handle;
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g_fds.p[fd].extra = g_fds.p[STDOUT_FILENO].handle;
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} else if ((g_fds.p[fd].handle = sys_open_nt_impl(
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dirfd, mp->conin, (flags & ~O_ACCMODE) | O_RDONLY, mode)) !=
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-1) {
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g_fds.p[fd].extra = sys_open_nt_impl(dirfd, mp->conout,
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(flags & ~O_ACCMODE) | O_WRONLY, mode);
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assert(g_fds.p[fd].extra != -1);
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} else {
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return -1;
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}
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g_fds.p[fd].kind = kFdConsole;
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g_fds.p[fd].flags = flags;
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g_fds.p[fd].mode = mode;
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return fd;
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}
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static textwindows ssize_t sys_open_nt_file(int dirfd, const char *file,
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uint32_t flags, int32_t mode,
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size_t fd) {
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if ((g_fds.p[fd].handle = sys_open_nt_impl(dirfd, file, flags, mode)) != -1) {
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g_fds.p[fd].kind = kFdFile;
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g_fds.p[fd].flags = flags;
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g_fds.p[fd].mode = mode;
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return fd;
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} else {
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return -1;
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}
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}
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textwindows ssize_t sys_open_nt(int dirfd, const char *file, uint32_t flags,
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int32_t mode) {
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int fd;
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ssize_t rc;
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if ((fd = __reservefd(-1)) == -1) return -1;
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if ((flags & O_ACCMODE) == O_RDWR && !strcmp(file, kNtMagicPaths.devtty)) {
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rc = sys_open_nt_console(dirfd, &kNtMagicPaths, flags, mode, fd);
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} else {
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rc = sys_open_nt_file(dirfd, file, flags, mode, fd);
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}
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if (rc == -1) {
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__releasefd(fd);
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}
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return rc;
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}
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