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Polyfill statfs() and fstatfs() on BSD distros

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Justine Tunney 2022-08-17 13:41:21 -07:00
parent e3fe127ccd
commit f7ee9d7d99
42 changed files with 968 additions and 287 deletions
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37
libc/calls/statfs.c Normal file
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/*-*- 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 2022 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/calls/calls.h"
#include "libc/calls/strace.internal.h"
#include "libc/calls/struct/statfs-meta.internal.h"
#include "libc/calls/struct/statfs.internal.h"
#include "libc/runtime/stack.h"
/**
* Returns information about filesystem.
*/
int statfs(const char *path, struct statfs *sf) {
int rc;
union statfs_meta m;
CheckLargeStackAllocation(&m, sizeof(m));
if ((rc = sys_statfs(path, &m)) != -1) {
statfs2cosmo(sf, &m);
}
STRACE("statfs(%#s, [%s]) → %d% m", path, DescribeStatfs(rc, sf));
return rc;
}