mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
33d280c8ba
- Blocking read operations on the Windows Console can now EINTR - Blocking read operations on Windows pipes now EINTR more reliably - setitimer() will no longer be inherited across fork() on Windows - It's now possible to use ECHO when the console is in raw mode - The ECHOCTL flag now works correctly on the Windows Console - The ICRNL flag now works correctly on the Windows Console - pread() and pwrite() will now raise ESPIPE on Windows - Opening /dev/tty on Windows is improved (untested) - Overlapped I/O is now implemented in a better way
104 lines
4.8 KiB
C
104 lines
4.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/assert.h"
|
|
#include "libc/calls/internal.h"
|
|
#include "libc/calls/ntmagicpaths.internal.h"
|
|
#include "libc/calls/state.internal.h"
|
|
#include "libc/calls/syscall-nt.internal.h"
|
|
#include "libc/calls/syscall_support-nt.internal.h"
|
|
#include "libc/nt/createfile.h"
|
|
#include "libc/nt/enum/fileflagandattributes.h"
|
|
#include "libc/nt/enum/filetype.h"
|
|
#include "libc/nt/files.h"
|
|
#include "libc/nt/runtime.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/sysv/consts/fileno.h"
|
|
#include "libc/sysv/consts/o.h"
|
|
|
|
static textwindows int64_t sys_open_nt_impl(int dirfd, const char *path,
|
|
uint32_t flags, int32_t mode,
|
|
uint32_t extra_attr) {
|
|
char16_t path16[PATH_MAX];
|
|
uint32_t perm, share, disp, attr;
|
|
if (__mkntpathat(dirfd, path, flags, path16) == -1) {
|
|
return kNtInvalidHandleValue;
|
|
}
|
|
if (GetNtOpenFlags(flags, mode, &perm, &share, &disp, &attr) == -1) {
|
|
return kNtInvalidHandleValue;
|
|
}
|
|
return __fix_enotdir(CreateFile(path16, perm, share, &kNtIsInheritable, disp,
|
|
attr | extra_attr, 0),
|
|
path16);
|
|
}
|
|
|
|
static textwindows int sys_open_nt_console(int dirfd,
|
|
const struct NtMagicPaths *mp,
|
|
uint32_t flags, int32_t mode,
|
|
size_t fd) {
|
|
if (GetFileType(g_fds.p[STDIN_FILENO].handle) == kNtFileTypeChar &&
|
|
GetFileType(g_fds.p[STDOUT_FILENO].handle) == kNtFileTypeChar) {
|
|
g_fds.p[fd].handle = g_fds.p[STDIN_FILENO].handle;
|
|
g_fds.p[fd].extra = g_fds.p[STDOUT_FILENO].handle;
|
|
} else if ((g_fds.p[fd].handle = sys_open_nt_impl(
|
|
dirfd, mp->conin, (flags & ~O_ACCMODE) | O_RDONLY, mode,
|
|
kNtFileFlagOverlapped)) != -1) {
|
|
g_fds.p[fd].extra = sys_open_nt_impl(
|
|
dirfd, mp->conout, (flags & ~O_ACCMODE) | O_WRONLY, mode, 0);
|
|
npassert(g_fds.p[fd].extra != -1);
|
|
} else {
|
|
return -1;
|
|
}
|
|
g_fds.p[fd].kind = kFdConsole;
|
|
g_fds.p[fd].flags = flags;
|
|
g_fds.p[fd].mode = mode;
|
|
return fd;
|
|
}
|
|
|
|
static textwindows int sys_open_nt_file(int dirfd, const char *file,
|
|
uint32_t flags, int32_t mode,
|
|
size_t fd) {
|
|
if ((g_fds.p[fd].handle = sys_open_nt_impl(dirfd, file, flags, mode, 0)) !=
|
|
-1) {
|
|
g_fds.p[fd].kind = kFdFile;
|
|
g_fds.p[fd].flags = flags;
|
|
g_fds.p[fd].mode = mode;
|
|
return fd;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
textwindows int sys_open_nt(int dirfd, const char *file, uint32_t flags,
|
|
int32_t mode) {
|
|
int fd;
|
|
ssize_t rc;
|
|
__fds_lock();
|
|
if ((rc = fd = __reservefd_unlocked(-1)) != -1) {
|
|
if ((flags & O_ACCMODE) == O_RDWR && !strcmp(file, kNtMagicPaths.devtty)) {
|
|
rc = sys_open_nt_console(dirfd, &kNtMagicPaths, flags, mode, fd);
|
|
} else {
|
|
rc = sys_open_nt_file(dirfd, file, flags, mode, fd);
|
|
}
|
|
if (rc == -1) {
|
|
__releasefd(fd);
|
|
}
|
|
__fds_unlock();
|
|
}
|
|
return rc;
|
|
}
|