mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
7e0a09feec
This change ports APE Loader to Linux AARCH64, so that Raspberry Pi users can run programs like redbean, without the executable needing to modify itself. Progress has also slipped into this change on the issue of making progress better conforming to user expectations and industry standards regarding which symbols we're allowed to declare
96 lines
4.5 KiB
C
96 lines
4.5 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/filetype.h"
|
|
#include "libc/nt/files.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/sysv/consts/fileno.h"
|
|
#include "libc/sysv/consts/o.h"
|
|
|
|
static textwindows int sys_open_nt_impl(int dirfd, const char *path,
|
|
uint32_t flags, int32_t mode) {
|
|
char16_t path16[PATH_MAX];
|
|
uint32_t perm, share, disp, attr;
|
|
if (__mkntpathat(dirfd, path, flags, path16) == -1) return -1;
|
|
if (GetNtOpenFlags(flags, mode, &perm, &share, &disp, &attr) == -1) return -1;
|
|
return __fix_enotdir(
|
|
CreateFile(path16, perm, share, &kNtIsInheritable, disp, 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)) !=
|
|
-1) {
|
|
g_fds.p[fd].extra = sys_open_nt_impl(dirfd, mp->conout,
|
|
(flags & ~O_ACCMODE) | O_WRONLY, mode);
|
|
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)) != -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;
|
|
}
|