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 * $Id$ 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_NODUMP) 73 SAPPEND("nodump"); 74 if (flags & UF_OPAQUE) 75 SAPPEND("opaque"); 76 if (flags & SF_APPEND) 77 SAPPEND("sappnd"); 78 if (flags & SF_ARCHIVED) 79 SAPPEND("arch"); 80 if (flags & SF_IMMUTABLE) 81 SAPPEND("schg"); 82 return (prefix == NULL && def != NULL ? def : string); 83 } 84 85 #define TEST(a, b, f) { \ 86 if (!memcmp(a, b, sizeof(b))) { \ 87 if (clear) { \ 88 if (clrp) \ 89 *clrp |= (f); \ 90 } else if (setp) \ 91 *setp |= (f); \ 92 break; \ 93 } \ 94 } 95 96 /* 97 * string_to_flags -- 98 * Take string of arguments and return stat flags. Return 0 on 99 * success, 1 on failure. On failure, stringp is set to point 100 * to the offending token. 101 */ 102 int 103 string_to_flags(stringp, setp, clrp) 104 char **stringp; 105 u_long *setp, *clrp; 106 { 107 int clear; 108 char *string, *p; 109 110 clear = 0; 111 if (setp) 112 *setp = 0; 113 if (clrp) 114 *clrp = 0; 115 string = *stringp; 116 while ((p = strsep(&string, "\t ,")) != NULL) { 117 *stringp = p; 118 if (*p == '\0') 119 continue; 120 if (p[0] == 'n' && p[1] == 'o') { 121 clear = 1; 122 p += 2; 123 } 124 switch (p[0]) { 125 case 'a': 126 TEST(p, "arch", SF_ARCHIVED); 127 TEST(p, "archived", SF_ARCHIVED); 128 return (1); 129 case 'd': 130 clear = !clear; 131 TEST(p, "dump", UF_NODUMP); 132 return (1); 133 case 'o': 134 TEST(p, "opaque", UF_OPAQUE); 135 return (1); 136 case 's': 137 TEST(p, "sappnd", SF_APPEND); 138 TEST(p, "sappend", SF_APPEND); 139 TEST(p, "schg", SF_IMMUTABLE); 140 TEST(p, "schange", SF_IMMUTABLE); 141 TEST(p, "simmutable", SF_IMMUTABLE); 142 return (1); 143 case 'u': 144 TEST(p, "uappnd", UF_APPEND); 145 TEST(p, "uappend", UF_APPEND); 146 TEST(p, "uchg", UF_IMMUTABLE); 147 TEST(p, "uchange", UF_IMMUTABLE); 148 TEST(p, "uimmutable", UF_IMMUTABLE); 149 /* FALLTHROUGH */ 150 default: 151 return (1); 152 } 153 } 154 return (0); 155 } 156