52 lines
2.7 KiB
C
52 lines
2.7 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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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/stat.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/nt/files.h"
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#include "libc/str/str.h"
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#include "libc/sysv/errfuns.h"
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/**
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* Returns true if file exists at path.
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*
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* Please note that things which aren't strictly files, e.g. directories
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* or sockets, could be considered files for the purposes of this
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* function. The stat() function may be used to differentiate them.
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*/
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bool fileexists(const char *path) {
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int rc, olderr;
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struct stat st;
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uint16_t path16[PATH_MAX];
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if (!IsWindows()) {
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olderr = errno;
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rc = stat(path, &st);
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if (rc == -1 && (errno == ENOENT || errno == ENOTDIR)) {
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errno = olderr;
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}
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return rc != -1;
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} else {
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if (__mkntpath(path, path16) == -1) return -1;
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return GetFileAttributes(path16) != -1u;
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}
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}
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