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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $Id: stat_flags.c,v 1.5 1997/02/22 14:04:02 peter Exp $ 34 */ 35 36 #ifndef lint 37 static char const sccsid[] = "@(#)stat_flags.c 8.1 (Berkeley) 5/31/93"; 38 #endif /* not lint */ 39 40 #include <sys/types.h> 41 #include <sys/stat.h> 42 43 #include <stddef.h> 44 #include <string.h> 45 46 #define SAPPEND(s) { \ 47 if (prefix != NULL) \ 48 (void)strcat(string, prefix); \ 49 (void)strcat(string, s); \ 50 prefix = ","; \ 51 } 52 53 /* 54 * flags_to_string -- 55 * Convert stat flags to a comma-separated string. If no flags 56 * are set, return the default string. 57 */ 58 char * 59 flags_to_string(flags, def) 60 u_long flags; 61 char *def; 62 { 63 static char string[128]; 64 char *prefix; 65 66 string[0] = '\0'; 67 prefix = NULL; 68 if (flags & UF_APPEND) 69 SAPPEND("uappnd"); 70 if (flags & UF_IMMUTABLE) 71 SAPPEND("uchg"); 72 if (flags & UF_NOUNLINK) 73 SAPPEND("uunlnk"); 74 if (flags & UF_NODUMP) 75 SAPPEND("nodump"); 76 if (flags & UF_OPAQUE) 77 SAPPEND("opaque"); 78 if (flags & SF_APPEND) 79 SAPPEND("sappnd"); 80 if (flags & SF_ARCHIVED) 81 SAPPEND("arch"); 82 if (flags & SF_IMMUTABLE) 83 SAPPEND("schg"); 84 if (flags & SF_NOUNLINK) 85 SAPPEND("sunlnk"); 86 return (prefix == NULL && def != NULL ? def : string); 87 } 88 89 #define TEST(a, b, f) { \ 90 if (!memcmp(a, b, sizeof(b))) { \ 91 if (clear) { \ 92 if (clrp) \ 93 *clrp |= (f); \ 94 } else if (setp) \ 95 *setp |= (f); \ 96 break; \ 97 } \ 98 } 99 100 /* 101 * string_to_flags -- 102 * Take string of arguments and return stat flags. Return 0 on 103 * success, 1 on failure. On failure, stringp is set to point 104 * to the offending token. 105 */ 106 int 107 string_to_flags(stringp, setp, clrp) 108 char **stringp; 109 u_long *setp, *clrp; 110 { 111 int clear; 112 char *string, *p; 113 114 clear = 0; 115 if (setp) 116 *setp = 0; 117 if (clrp) 118 *clrp = 0; 119 string = *stringp; 120 while ((p = strsep(&string, "\t ,")) != NULL) { 121 *stringp = p; 122 if (*p == '\0') 123 continue; 124 if (p[0] == 'n' && p[1] == 'o') { 125 clear = 1; 126 p += 2; 127 } 128 switch (p[0]) { 129 case 'a': 130 TEST(p, "arch", SF_ARCHIVED); 131 TEST(p, "archived", SF_ARCHIVED); 132 return (1); 133 case 'd': 134 clear = !clear; 135 TEST(p, "dump", UF_NODUMP); 136 return (1); 137 case 'o': 138 TEST(p, "opaque", UF_OPAQUE); 139 return (1); 140 case 's': 141 TEST(p, "sappnd", SF_APPEND); 142 TEST(p, "sappend", SF_APPEND); 143 TEST(p, "schg", SF_IMMUTABLE); 144 TEST(p, "schange", SF_IMMUTABLE); 145 TEST(p, "simmutable", SF_IMMUTABLE); 146 TEST(p, "sunlnk", SF_NOUNLINK); 147 TEST(p, "sunlink", SF_NOUNLINK); 148 return (1); 149 case 'u': 150 TEST(p, "uappnd", UF_APPEND); 151 TEST(p, "uappend", UF_APPEND); 152 TEST(p, "uchg", UF_IMMUTABLE); 153 TEST(p, "uchange", UF_IMMUTABLE); 154 TEST(p, "uimmutable", UF_IMMUTABLE); 155 TEST(p, "uunlnk", UF_NOUNLINK); 156 TEST(p, "uunlink", UF_NOUNLINK); 157 /* FALLTHROUGH */ 158 default: 159 return (1); 160 } 161 } 162 return (0); 163 } 164