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