mirror of
https://github.com/jart/cosmopolitan.git
synced 2024-05-05 13:18:45 +00:00
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
123 lines
4.4 KiB
C
123 lines
4.4 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/statfs.h"
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#include "libc/calls/struct/statfs.internal.h"
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#include "libc/dce.h"
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#include "libc/fmt/conv.h"
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#include "libc/intrin/asan.internal.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/sysv/consts/st.h"
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#ifdef DescribeStatfs
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#undef DescribeStatfs
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#endif
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#define N 300
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#define append(...) i += ksnprintf(buf + i, N - i, __VA_ARGS__)
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const char *DescribeStatfs(char buf[N], int rc, const struct statfs *f) {
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int i = 0;
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char ibuf[21];
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int64_t flags;
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if (rc == -1) return "n/a";
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if (!f) return "NULL";
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if ((!IsAsan() && kisdangerous(f)) ||
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(IsAsan() && !__asan_is_valid(f, sizeof(*f)))) {
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ksnprintf(buf, N, "%p", f);
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return buf;
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}
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append("{.f_type=%#lx /* %s */", f->f_type, f->f_fstypename);
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sizefmt(ibuf, f->f_bsize, 1024);
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append(", .f_%s=%sb", "bsize", ibuf);
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sizefmt(ibuf, f->f_blocks * f->f_bsize, 1024);
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append(", .f_%s=%sb", "blocks", ibuf);
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sizefmt(ibuf, f->f_bfree * f->f_bsize, 1024);
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append(", .f_%s=%sb", "bfree", ibuf);
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sizefmt(ibuf, f->f_bavail * f->f_bsize, 1024);
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append(", .f_%s=%sb", "bavail", ibuf);
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append(", .f_%s=%'zu", "files", f->f_files);
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append(", .f_%s=%'zu", "ffree", f->f_ffree);
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append(", .f_fsid=%#lx", f->f_fsid);
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append(", .f_%s=%'zu", "namelen", f->f_namelen);
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append(", .f_%s=%d", "owner", f->f_owner);
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flags = f->f_flags;
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append(", .f_flags=");
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if (ST_RDONLY && (flags & ST_RDONLY)) {
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append("ST_RDONLY|");
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flags &= ~ST_RDONLY;
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}
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if (ST_NOSUID && (flags & ST_NOSUID)) {
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append("ST_NOSUID|");
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flags &= ~ST_NOSUID;
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}
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if (ST_NODEV && (flags & ST_NODEV)) {
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append("ST_NODEV|");
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flags &= ~ST_NODEV;
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}
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if (ST_NOEXEC && (flags & ST_NOEXEC)) {
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append("ST_NOEXEC|");
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flags &= ~ST_NOEXEC;
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}
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if (ST_SYNCHRONOUS && (flags & ST_SYNCHRONOUS)) {
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append("ST_SYNCHRONOUS|");
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flags &= ~ST_SYNCHRONOUS;
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}
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if (ST_MANDLOCK && (flags & ST_MANDLOCK)) {
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append("ST_MANDLOCK|");
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flags &= ~ST_MANDLOCK;
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}
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if (ST_WRITE && (flags & ST_WRITE)) {
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append("ST_WRITE|");
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flags &= ~ST_WRITE;
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}
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if (ST_APPEND && (flags & ST_APPEND)) {
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append("ST_APPEND|");
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flags &= ~ST_APPEND;
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}
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if (ST_IMMUTABLE && (flags & ST_IMMUTABLE)) {
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append("ST_IMMUTABLE|");
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flags &= ~ST_IMMUTABLE;
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}
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if (ST_NOATIME && (flags & ST_NOATIME)) {
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append("ST_NOATIME|");
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flags &= ~ST_NOATIME;
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}
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if (ST_NODIRATIME && (flags & ST_NODIRATIME)) {
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append("ST_NODIRATIME|");
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flags &= ~ST_NODIRATIME;
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}
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if (ST_RELATIME && (flags & ST_RELATIME)) {
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append("ST_RELATIME|");
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flags &= ~ST_RELATIME;
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}
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append("%#lx}", flags);
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return buf;
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}
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