1 /*- 2 * Copyright (c) 1993 3 * The Regents of the University of California. 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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #if defined(LIBC_SCCS) && !defined(lint) 31 static char sccsid[] = "@(#)stat_flags.c 8.1 (Berkeley) 5/31/93"; 32 #endif /* LIBC_SCCS and not lint */ 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #include <sys/types.h> 37 #include <sys/stat.h> 38 39 #include <stddef.h> 40 #include <stdlib.h> 41 #include <string.h> 42 #include <unistd.h> 43 44 #define longestflaglen 12 45 static struct { 46 char name[longestflaglen + 1]; 47 char invert; 48 u_long flag; 49 } const mapping[] = { 50 /* shorter names per flag first, all prefixed by "no" */ 51 { "nosappnd", 0, SF_APPEND }, 52 { "nosappend", 0, SF_APPEND }, 53 { "noarch", 0, SF_ARCHIVED }, 54 { "noarchived", 0, SF_ARCHIVED }, 55 { "noschg", 0, SF_IMMUTABLE }, 56 { "noschange", 0, SF_IMMUTABLE }, 57 { "nosimmutable", 0, SF_IMMUTABLE }, 58 { "nosunlnk", 0, SF_NOUNLINK }, 59 { "nosunlink", 0, SF_NOUNLINK }, 60 #ifdef SF_SNAPSHOT 61 { "nosnapshot", 0, SF_SNAPSHOT }, 62 #endif 63 { "nouappnd", 0, UF_APPEND }, 64 { "nouappend", 0, UF_APPEND }, 65 { "nouarch", 0, UF_ARCHIVE }, 66 { "nouarchive", 0, UF_ARCHIVE }, 67 { "nohidden", 0, UF_HIDDEN }, 68 { "nouhidden", 0, UF_HIDDEN }, 69 { "nouchg", 0, UF_IMMUTABLE }, 70 { "nouchange", 0, UF_IMMUTABLE }, 71 { "nouimmutable", 0, UF_IMMUTABLE }, 72 { "nodump", 1, UF_NODUMP }, 73 { "nouunlnk", 0, UF_NOUNLINK }, 74 { "nouunlink", 0, UF_NOUNLINK }, 75 { "nooffline", 0, UF_OFFLINE }, 76 { "nouoffline", 0, UF_OFFLINE }, 77 { "noopaque", 0, UF_OPAQUE }, 78 { "nordonly", 0, UF_READONLY }, 79 { "nourdonly", 0, UF_READONLY }, 80 { "noreadonly", 0, UF_READONLY }, 81 { "noureadonly", 0, UF_READONLY }, 82 { "noreparse", 0, UF_REPARSE }, 83 { "noureparse", 0, UF_REPARSE }, 84 { "nosparse", 0, UF_SPARSE }, 85 { "nousparse", 0, UF_SPARSE }, 86 { "nosystem", 0, UF_SYSTEM }, 87 { "nousystem", 0, UF_SYSTEM } 88 }; 89 #define nmappings (sizeof(mapping) / sizeof(mapping[0])) 90 91 /* 92 * fflagstostr -- 93 * Convert file flags to a comma-separated string. If no flags 94 * are set, return the empty string. 95 */ 96 char * 97 fflagstostr(flags) 98 u_long flags; 99 { 100 char *string; 101 const char *sp; 102 char *dp; 103 u_long setflags; 104 int i; 105 106 if ((string = (char *)malloc(nmappings * (longestflaglen + 1))) == NULL) 107 return (NULL); 108 109 setflags = flags; 110 dp = string; 111 for (i = 0; i < nmappings; i++) { 112 if (setflags & mapping[i].flag) { 113 if (dp > string) 114 *dp++ = ','; 115 for (sp = mapping[i].invert ? mapping[i].name : 116 mapping[i].name + 2; *sp; *dp++ = *sp++) ; 117 setflags &= ~mapping[i].flag; 118 } 119 } 120 *dp = '\0'; 121 return (string); 122 } 123 124 /* 125 * strtofflags -- 126 * Take string of arguments and return file flags. Return 0 on 127 * success, 1 on failure. On failure, stringp is set to point 128 * to the offending token. 129 */ 130 int 131 strtofflags(stringp, setp, clrp) 132 char **stringp; 133 u_long *setp, *clrp; 134 { 135 char *string, *p; 136 int i; 137 138 if (setp) 139 *setp = 0; 140 if (clrp) 141 *clrp = 0; 142 string = *stringp; 143 while ((p = strsep(&string, "\t ,")) != NULL) { 144 *stringp = p; 145 if (*p == '\0') 146 continue; 147 for (i = 0; i < nmappings; i++) { 148 if (strcmp(p, mapping[i].name + 2) == 0) { 149 if (mapping[i].invert) { 150 if (clrp) 151 *clrp |= mapping[i].flag; 152 } else { 153 if (setp) 154 *setp |= mapping[i].flag; 155 } 156 break; 157 } else if (strcmp(p, mapping[i].name) == 0) { 158 if (mapping[i].invert) { 159 if (setp) 160 *setp |= mapping[i].flag; 161 } else { 162 if (clrp) 163 *clrp |= mapping[i].flag; 164 } 165 break; 166 } 167 } 168 if (i == nmappings) 169 return 1; 170 } 171 return 0; 172 } 173