mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
39bf41f4eb
- Python static hello world now 1.8mb
- Python static fully loaded now 10mb
- Python HTTPS client now uses MbedTLS
- Python REPL now completes import stmts
- Increase stack size for Python for now
- Begin synthesizing posixpath and ntpath
- Restore Python \N{UNICODE NAME} support
- Restore Python NFKD symbol normalization
- Add optimized code path for Intel SHA-NI
- Get more Python unit tests passing faster
- Get Python help() pagination working on NT
- Python hashlib now supports MbedTLS PBKDF2
- Make memcpy/memmove/memcmp/bcmp/etc. faster
- Add Mersenne Twister and Vigna to LIBC_RAND
- Provide privileged __printf() for error code
- Fix zipos opendir() so that it reports ENOTDIR
- Add basic chmod() implementation for Windows NT
- Add Cosmo's best functions to Python cosmo module
- Pin function trace indent depth to that of caller
- Show memory diagram on invalid access in MODE=dbg
- Differentiate stack overflow on crash in MODE=dbg
- Add stb_truetype and tools for analyzing font files
- Upgrade to UNICODE 13 and reduce its binary footprint
- COMPILE.COM now logs resource usage of build commands
- Start implementing basic poll() support on bare metal
- Set getauxval(AT_EXECFN) to GetModuleFileName() on NT
- Add descriptions to strerror() in non-TINY build modes
- Add COUNTBRANCH() macro to help with micro-optimizations
- Make error / backtrace / asan / memory code more unbreakable
- Add fast perfect C implementation of μ-Law and a-Law audio codecs
- Make strtol() functions consistent with other libc implementations
- Improve Linenoise implementation (see also github.com/jart/bestline)
- COMPILE.COM now suppresses stdout/stderr of successful build commands
66 lines
3.5 KiB
C
66 lines
3.5 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/bits/weaken.h"
|
|
#include "libc/calls/calls.h"
|
|
#include "libc/calls/internal.h"
|
|
#include "libc/dce.h"
|
|
#include "libc/intrin/asan.internal.h"
|
|
#include "libc/log/log.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/sysv/consts/at.h"
|
|
#include "libc/sysv/consts/o.h"
|
|
#include "libc/sysv/errfuns.h"
|
|
#include "libc/zipos/zipos.internal.h"
|
|
|
|
/**
|
|
* Opens file.
|
|
*
|
|
* @param dirfd is normally AT_FDCWD but if it's an open directory and
|
|
* file is a relative path, then file is opened relative to dirfd
|
|
* @param file is a UTF-8 string, preferably relative w/ forward slashes
|
|
* @param flags should be O_RDONLY, O_WRONLY, or O_RDWR, and can be or'd
|
|
* with O_CREAT, O_TRUNC, O_APPEND, O_EXCL, O_CLOEXEC, O_TMPFILE
|
|
* @param mode is an octal user/group/other permission signifier, that's
|
|
* ignored if O_CREAT or O_TMPFILE weren't passed
|
|
* @return number needing close(), or -1 w/ errno
|
|
* @asyncsignalsafe
|
|
* @vforksafe
|
|
*/
|
|
int openat(int dirfd, const char *file, int flags, ...) {
|
|
va_list va;
|
|
unsigned mode;
|
|
struct ZiposUri zipname;
|
|
va_start(va, flags);
|
|
mode = va_arg(va, unsigned);
|
|
va_end(va);
|
|
if (!file) return efault();
|
|
if (IsAsan() && !__asan_is_valid(file, 1)) return efault();
|
|
if (__isfdkind(dirfd, kFdZip)) return einval(); /* TODO(jart): implement me */
|
|
if (weaken(__zipos_open) && weaken(__zipos_parseuri)(file, &zipname) != -1) {
|
|
if (__vforked) return eopnotsupp();
|
|
if (dirfd != AT_FDCWD) return eopnotsupp();
|
|
return weaken(__zipos_open)(&zipname, flags, mode);
|
|
} else if (!IsWindows() && !IsMetal()) {
|
|
return sys_openat(dirfd, file, flags, mode);
|
|
} else if (IsMetal()) {
|
|
return sys_openat_metal(dirfd, file, flags, mode);
|
|
} else {
|
|
return sys_open_nt(dirfd, file, flags, mode);
|
|
}
|
|
}
|