1 /* @(#)stat_flags.c 8.2 (Berkeley) 7/28/94 */ 2 /* $NetBSD: stat_flags.c,v 1.2 2007/01/16 17:34:02 cbiere Exp $ */ 3 4 /*- 5 * Copyright (c) 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #define HAVE_STRUCT_STAT_ST_FLAGS 1 34 35 #include <sys/types.h> 36 #include <sys/stat.h> 37 #include <fts.h> 38 #include <stddef.h> 39 #include <stdio.h> 40 #include <string.h> 41 #include <stdlib.h> 42 43 #include "extern.h" 44 45 #define SAPPEND(s) do { \ 46 if (prefix != NULL) \ 47 (void)strlcat(string, prefix, sizeof(string)); \ 48 (void)strlcat(string, s, sizeof(string)); \ 49 prefix = ","; \ 50 } while (/* CONSTCOND */ 0) 51 52 /* 53 * flags_to_string -- 54 * Convert stat flags to a comma-separated string. If no flags 55 * are set, return the default string. 56 */ 57 char * 58 flags_to_string(u_long flags, const char *def) 59 { 60 char string[128]; 61 const char *prefix; 62 63 string[0] = '\0'; 64 prefix = NULL; 65 #if HAVE_STRUCT_STAT_ST_FLAGS 66 if (flags & UF_APPEND) 67 SAPPEND("uappnd"); 68 if (flags & UF_IMMUTABLE) 69 SAPPEND("uchg"); 70 if (flags & UF_NODUMP) 71 SAPPEND("nodump"); 72 if (flags & UF_OPAQUE) 73 SAPPEND("opaque"); 74 if (flags & SF_APPEND) 75 SAPPEND("sappnd"); 76 if (flags & SF_ARCHIVED) 77 SAPPEND("arch"); 78 if (flags & SF_IMMUTABLE) 79 SAPPEND("schg"); 80 #ifdef SF_SNAPSHOT 81 if (flags & SF_SNAPSHOT) 82 SAPPEND("snap"); 83 #endif 84 #endif 85 if (prefix != NULL) 86 return strdup(string); 87 return strdup(def); 88 } 89 90 #define TEST(a, b, f) { \ 91 if (!strcmp(a, b)) { \ 92 if (clear) { \ 93 if (clrp) \ 94 *clrp |= (f); \ 95 if (setp) \ 96 *setp &= ~(f); \ 97 } else { \ 98 if (setp) \ 99 *setp |= (f); \ 100 if (clrp) \ 101 *clrp &= ~(f); \ 102 } \ 103 break; \ 104 } \ 105 } 106 107 /* 108 * string_to_flags -- 109 * Take string of arguments and return stat flags. Return 0 on 110 * success, 1 on failure. On failure, stringp is set to point 111 * to the offending token. 112 */ 113 int 114 string_to_flags(char **stringp, u_long *setp, u_long *clrp) 115 { 116 int clear; 117 char *string, *p; 118 119 if (setp) 120 *setp = 0; 121 if (clrp) 122 *clrp = 0; 123 124 #if HAVE_STRUCT_STAT_ST_FLAGS 125 string = *stringp; 126 while ((p = strsep(&string, "\t ,")) != NULL) { 127 clear = 0; 128 *stringp = p; 129 if (*p == '\0') 130 continue; 131 if (p[0] == 'n' && p[1] == 'o') { 132 clear = 1; 133 p += 2; 134 } 135 switch (p[0]) { 136 case 'a': 137 TEST(p, "arch", SF_ARCHIVED); 138 TEST(p, "archived", SF_ARCHIVED); 139 return (1); 140 case 'd': 141 clear = !clear; 142 TEST(p, "dump", UF_NODUMP); 143 return (1); 144 case 'n': 145 /* 146 * Support `nonodump'. Note that 147 * the state of clear is not changed. 148 */ 149 TEST(p, "nodump", UF_NODUMP); 150 return (1); 151 case 'o': 152 TEST(p, "opaque", UF_OPAQUE); 153 return (1); 154 case 's': 155 TEST(p, "sappnd", SF_APPEND); 156 TEST(p, "sappend", SF_APPEND); 157 TEST(p, "schg", SF_IMMUTABLE); 158 TEST(p, "schange", SF_IMMUTABLE); 159 TEST(p, "simmutable", SF_IMMUTABLE); 160 return (1); 161 case 'u': 162 TEST(p, "uappnd", UF_APPEND); 163 TEST(p, "uappend", UF_APPEND); 164 TEST(p, "uchg", UF_IMMUTABLE); 165 TEST(p, "uchange", UF_IMMUTABLE); 166 TEST(p, "uimmutable", UF_IMMUTABLE); 167 return (1); 168 default: 169 return (1); 170 } 171 } 172 #endif 173 174 return (0); 175 } 176