mirror of
https://github.com/jart/cosmopolitan.git
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f2af97711b
- Improve compatibility with Blink virtual machine - Add non-POSIX APIs for joining threads and signal masks - Never ever use anything except 32-bit integers for atomics - Add some `#undef` statements to workaround `ctags` problems
94 lines
3.3 KiB
C
94 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 2021 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/calls/struct/stat.h"
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#include "libc/calls/struct/stat.internal.h"
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#include "libc/dce.h"
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#include "libc/intrin/asan.internal.h"
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#include "libc/intrin/kprintf.h"
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#ifdef DescribeStat
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#undef DescribeStat
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#endif
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#define N 300
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#define append(...) o += ksnprintf(buf + o, N - o, __VA_ARGS__)
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const char *DescribeStat(char buf[N], int rc, const struct stat *st) {
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int o = 0;
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if (rc == -1) return "n/a";
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if (!st) return "NULL";
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if ((!IsAsan() && kisdangerous(st)) ||
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(IsAsan() && !__asan_is_valid(st, sizeof(*st)))) {
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ksnprintf(buf, N, "%p", st);
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return buf;
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}
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append("{.st_%s=%'ld", "size", st->st_size);
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if (st->st_blocks) {
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append(", .st_blocks=%'lu/512", st->st_blocks * 512);
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}
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if (st->st_mode) {
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append(", .st_%s=%#o", "mode", st->st_mode);
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}
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if (st->st_nlink != 1) {
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append(", .st_%s=%'lu", "nlink", st->st_nlink);
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}
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if (st->st_uid) {
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append(", .st_%s=%lu", "uid", st->st_uid);
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}
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if (st->st_gid) {
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append(", .st_%s=%lu", "gid", st->st_gid);
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}
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if (st->st_dev) {
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append(", .st_%s=%lu", "dev", st->st_dev);
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}
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if (st->st_ino) {
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append(", .st_%s=%lu", "ino", st->st_ino);
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}
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if (st->st_gen) {
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append(", .st_%s=%'lu", "gen", st->st_gen);
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}
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if (st->st_flags) {
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append(", .st_%s=%lx", "flags", st->st_flags);
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}
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if (st->st_rdev) {
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append(", .st_%s=%'lu", "rdev", st->st_rdev);
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}
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if (st->st_blksize != PAGESIZE) {
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append(", .st_%s=%'lu", "blksize", st->st_blksize);
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}
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append("}");
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return buf;
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}
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