1/* $NetBSD: file.c,v 1.1 2020/05/16 18:31:45 christos Exp $ */ 2 3/*- 4 * Copyright (c) 2001 Chris D. Faulhaber 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30#if 0 31__FBSDID("$FreeBSD: head/bin/setfacl/file.c 333065 2018-04-27 15:25:24Z emaste $"); 32#else 33__RCSID("$NetBSD: file.c,v 1.1 2020/05/16 18:31:45 christos Exp $"); 34#endif 35 36#include <sys/types.h> 37#include <sys/acl.h> 38 39#include <err.h> 40#include <stdio.h> 41#include <string.h> 42 43#include "setfacl.h" 44 45/* 46 * read acl text from a file and return the corresponding acl 47 */ 48acl_t 49get_acl_from_file(const char *filename) 50{ 51 FILE *file; 52 size_t len; 53 char buf[BUFSIZ+1]; 54 55 if (filename == NULL) 56 err(1, "(null) filename in get_acl_from_file()"); 57 58 if (strcmp(filename, "-") == 0) { 59 if (have_stdin) 60 err(1, "cannot specify more than one stdin"); 61 file = stdin; 62 have_stdin = true; 63 } else { 64 file = fopen(filename, "r"); 65 if (file == NULL) 66 err(1, "fopen() %s failed", filename); 67 } 68 69 len = fread(buf, (size_t)1, sizeof(buf) - 1, file); 70 buf[len] = '\0'; 71 if (ferror(file) != 0) { 72 fclose(file); 73 err(1, "error reading from %s", filename); 74 } else if (feof(file) == 0) { 75 fclose(file); 76 errx(1, "line too long in %s", filename); 77 } 78 79 fclose(file); 80 81 return (acl_from_text(buf)); 82} 83