75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/*
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* Copyright (c) 2001 Chris D. Faulhaber
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR THE VOICES IN HIS HEAD BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/acl.h>
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#include <err.h>
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#include <stdio.h>
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#include <string.h>
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#include <sysexits.h>
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#include "setfacl.h"
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/* read acl text from a file and return the corresponding acl */
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acl_t
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get_acl_from_file(const char *filename)
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{
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FILE *file;
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char buf[BUFSIZ];
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if (!filename)
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err(EX_USAGE, "(null) filename in get_acl_from_file()");
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bzero(&buf, sizeof(buf));
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if (!strcmp(filename, "-")) {
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if (have_stdin)
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err(EX_USAGE, "cannot specify more than one stdin");
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file = stdin;
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have_stdin = 1;
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} else {
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file = fopen(filename, "r");
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if (!file)
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err(EX_OSERR, "fopen() %s failed", filename);
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}
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fread(buf, sizeof(buf), (size_t)1, file);
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if (ferror(file)) {
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fclose(file);
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err(EX_USAGE, "error reading from %s", filename);
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} else if (!feof(file)) {
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fclose(file);
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errx(EX_USAGE, "line too long in %s", filename);
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}
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fclose(file);
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return acl_from_text(buf);
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}
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