1 /*- 2 * Copyright (c) 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)stat_flags.c 8.1 (Berkeley) 05/31/93"; 10 #endif /* not lint */ 11 12 #include <sys/types.h> 13 #include <sys/stat.h> 14 15 #include <stddef.h> 16 #include <string.h> 17 18 #define SAPPEND(s) { \ 19 if (prefix != NULL) \ 20 (void)strcat(string, prefix); \ 21 (void)strcat(string, s); \ 22 prefix = ","; \ 23 } 24 25 /* 26 * flags_to_string -- 27 * Convert stat flags to a comma-separated string. If no flags 28 * are set, return the default string. 29 */ 30 char * 31 flags_to_string(flags, def) 32 u_long flags; 33 char *def; 34 { 35 static char string[128]; 36 char *prefix; 37 38 string[0] = '\0'; 39 prefix = NULL; 40 if (flags & UF_APPEND) 41 SAPPEND("uappnd"); 42 if (flags & UF_IMMUTABLE) 43 SAPPEND("uchg"); 44 if (flags & UF_NODUMP) 45 SAPPEND("nodump"); 46 if (flags & SF_APPEND) 47 SAPPEND("sappnd"); 48 if (flags & SF_ARCHIVED) 49 SAPPEND("arch"); 50 if (flags & SF_IMMUTABLE) 51 SAPPEND("schg"); 52 return (prefix == NULL && def != NULL ? def : string); 53 } 54 55 #define TEST(a, b, f) { \ 56 if (!memcmp(a, b, sizeof(b))) { \ 57 if (clear) { \ 58 if (clrp) \ 59 *clrp |= (f); \ 60 } else if (setp) \ 61 *setp |= (f); \ 62 break; \ 63 } \ 64 } 65 66 /* 67 * string_to_flags -- 68 * Take string of arguments and return stat flags. Return 0 on 69 * success, 1 on failure. On failure, stringp is set to point 70 * to the offending token. 71 */ 72 int 73 string_to_flags(stringp, setp, clrp) 74 char **stringp; 75 u_long *setp, *clrp; 76 { 77 int clear; 78 char *string, *p; 79 80 clear = 0; 81 if (setp) 82 *setp = 0; 83 if (clrp) 84 *clrp = 0; 85 string = *stringp; 86 while ((p = strsep(&string, "\t ,")) != NULL) { 87 *stringp = p; 88 if (*p == '\0') 89 continue; 90 if (p[0] == 'n' && p[1] == 'o') { 91 clear = 1; 92 p += 2; 93 } 94 switch (p[0]) { 95 case 'a': 96 TEST(p, "arch", SF_ARCHIVED); 97 TEST(p, "archived", SF_ARCHIVED); 98 return (1); 99 case 'd': 100 clear = !clear; 101 TEST(p, "dump", UF_NODUMP); 102 return (1); 103 case 's': 104 TEST(p, "sappnd", SF_APPEND); 105 TEST(p, "sappend", SF_APPEND); 106 TEST(p, "schg", SF_IMMUTABLE); 107 TEST(p, "schange", SF_IMMUTABLE); 108 TEST(p, "simmutable", SF_IMMUTABLE); 109 return (1); 110 case 'u': 111 TEST(p, "uappnd", UF_APPEND); 112 TEST(p, "uappend", UF_APPEND); 113 TEST(p, "uchg", UF_IMMUTABLE); 114 TEST(p, "uchange", UF_IMMUTABLE); 115 TEST(p, "uimmutable", UF_IMMUTABLE); 116 /* FALLTHROUGH */ 117 default: 118 return (1); 119 } 120 } 121 return (0); 122 } 123