mirror of
https://github.com/jart/cosmopolitan.git
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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
88 lines
3.3 KiB
C
88 lines
3.3 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/bits/safemacros.internal.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/fmt/fmt.h"
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#include "libc/fmt/itoa.h"
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#include "libc/macros.internal.h"
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#include "libc/nt/enum/formatmessageflags.h"
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#include "libc/nt/process.h"
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#include "libc/nt/runtime.h"
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#include "libc/str/str.h"
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struct Error {
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int x;
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int s;
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};
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extern const struct Error kErrorNames[];
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extern const struct Error kErrorNamesLong[];
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static const char *GetErrorName(long x) {
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int i;
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if (x) {
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for (i = 0; kErrorNames[i].x; ++i) {
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if (x == *(const long *)((uintptr_t)kErrorNames + kErrorNames[i].x)) {
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return (const char *)((uintptr_t)kErrorNames + kErrorNames[i].s);
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}
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}
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}
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return "EUNKNOWN";
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}
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static const char *GetErrorNameLong(long x) {
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int i;
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if (x) {
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for (i = 0; kErrorNamesLong[i].x; ++i) {
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if (x ==
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*(const long *)((uintptr_t)kErrorNamesLong + kErrorNamesLong[i].x)) {
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return (const char *)((uintptr_t)kErrorNamesLong +
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kErrorNamesLong[i].s);
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}
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}
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}
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return "EUNKNOWN[No error information]";
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}
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/**
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* Converts errno value to string.
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* @return 0 on success, or error code
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*/
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int strerror_r(int err, char *buf, size_t size) {
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char *p;
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const char *s;
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err &= 0xFFFF;
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if (IsTiny()) {
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s = GetErrorName(err);
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} else {
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s = GetErrorNameLong(err);
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}
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p = buf;
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if (strlen(s) + 1 + 5 + 1 + 1 <= size) {
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p = stpcpy(p, s);
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*p++ = '[';
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p += uint64toarray_radix10(err, p);
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*p++ = ']';
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}
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if (p - buf < size) {
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*p++ = '\0';
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}
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return 0;
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}
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