1 /* $NetBSD: misc.c,v 1.34 2012/12/20 19:09:25 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)misc.c 8.1 (Berkeley) 6/6/93 32 */ 33 34 #if HAVE_NBTOOL_CONFIG_H 35 #include "nbtool_config.h" 36 #endif 37 38 #include <sys/cdefs.h> 39 #if defined(__RCSID) && !defined(lint) 40 __RCSID("$NetBSD: misc.c,v 1.34 2012/12/20 19:09:25 christos Exp $"); 41 #endif /* not lint */ 42 43 #include <sys/types.h> 44 #include <sys/stat.h> 45 46 #include <stdarg.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 51 #include "extern.h" 52 53 enum flavor flavor = F_MTREE; 54 55 typedef struct _key { 56 const char *name; /* key name */ 57 u_int val; /* value */ 58 59 #define NEEDVALUE 0x01 60 u_int flags; 61 } KEY; 62 63 /* NB: the following tables must be sorted lexically. */ 64 static KEY keylist[] = { 65 {"cksum", F_CKSUM, NEEDVALUE}, 66 {"device", F_DEV, NEEDVALUE}, 67 {"flags", F_FLAGS, NEEDVALUE}, 68 {"gid", F_GID, NEEDVALUE}, 69 {"gname", F_GNAME, NEEDVALUE}, 70 {"ignore", F_IGN, 0}, 71 {"link", F_SLINK, NEEDVALUE}, 72 {"md5", F_MD5, NEEDVALUE}, 73 {"md5digest", F_MD5, NEEDVALUE}, 74 {"mode", F_MODE, NEEDVALUE}, 75 {"nlink", F_NLINK, NEEDVALUE}, 76 {"nochange", F_NOCHANGE, 0}, 77 {"optional", F_OPT, 0}, 78 {"ripemd160digest", F_RMD160, NEEDVALUE}, 79 {"rmd160", F_RMD160, NEEDVALUE}, 80 {"rmd160digest",F_RMD160, NEEDVALUE}, 81 {"sha1", F_SHA1, NEEDVALUE}, 82 {"sha1digest", F_SHA1, NEEDVALUE}, 83 {"sha256", F_SHA256, NEEDVALUE}, 84 {"sha256digest",F_SHA256, NEEDVALUE}, 85 {"sha384", F_SHA384, NEEDVALUE}, 86 {"sha384digest",F_SHA384, NEEDVALUE}, 87 {"sha512", F_SHA512, NEEDVALUE}, 88 {"sha512digest",F_SHA512, NEEDVALUE}, 89 {"size", F_SIZE, NEEDVALUE}, 90 {"tags", F_TAGS, NEEDVALUE}, 91 {"time", F_TIME, NEEDVALUE}, 92 {"type", F_TYPE, NEEDVALUE}, 93 {"uid", F_UID, NEEDVALUE}, 94 {"uname", F_UNAME, NEEDVALUE} 95 }; 96 97 static KEY typelist[] = { 98 {"block", F_BLOCK, 0}, 99 {"char", F_CHAR, 0}, 100 {"dir", F_DIR, 0}, 101 #ifdef S_IFDOOR 102 {"door", F_DOOR, 0}, 103 #endif 104 {"fifo", F_FIFO, 0}, 105 {"file", F_FILE, 0}, 106 {"link", F_LINK, 0}, 107 {"socket", F_SOCK, 0}, 108 }; 109 110 slist_t excludetags, includetags; 111 int keys = KEYDEFAULT; 112 113 114 int keycompare(const void *, const void *); 115 116 u_int 117 parsekey(const char *name, int *needvaluep) 118 { 119 static int allbits; 120 KEY *k, tmp; 121 122 if (allbits == 0) { 123 size_t i; 124 125 for (i = 0; i < sizeof(keylist) / sizeof(KEY); i++) 126 allbits |= keylist[i].val; 127 } 128 tmp.name = name; 129 if (strcmp(name, "all") == 0) 130 return (allbits); 131 k = (KEY *)bsearch(&tmp, keylist, sizeof(keylist) / sizeof(KEY), 132 sizeof(KEY), keycompare); 133 if (k == NULL) 134 mtree_err("unknown keyword `%s'", name); 135 136 if (needvaluep) 137 *needvaluep = k->flags & NEEDVALUE ? 1 : 0; 138 139 return (k->val); 140 } 141 142 u_int 143 parsetype(const char *name) 144 { 145 KEY *k, tmp; 146 147 tmp.name = name; 148 k = (KEY *)bsearch(&tmp, typelist, sizeof(typelist) / sizeof(KEY), 149 sizeof(KEY), keycompare); 150 if (k == NULL) 151 mtree_err("unknown file type `%s'", name); 152 153 return (k->val); 154 } 155 156 int 157 keycompare(const void *a, const void *b) 158 { 159 160 return (strcmp(((const KEY *)a)->name, ((const KEY *)b)->name)); 161 } 162 163 void 164 mtree_err(const char *fmt, ...) 165 { 166 va_list ap; 167 168 va_start(ap, fmt); 169 vwarnx(fmt, ap); 170 va_end(ap); 171 if (mtree_lineno) 172 warnx("failed at line %lu of the specification", 173 (u_long) mtree_lineno); 174 exit(1); 175 /* NOTREACHED */ 176 } 177 178 void 179 addtag(slist_t *list, char *elem) 180 { 181 182 #define TAG_CHUNK 20 183 184 if ((list->count % TAG_CHUNK) == 0) { 185 char **new; 186 187 new = (char **)realloc(list->list, (list->count + TAG_CHUNK) 188 * sizeof(char *)); 189 if (new == NULL) 190 mtree_err("memory allocation error"); 191 list->list = new; 192 } 193 list->list[list->count] = elem; 194 list->count++; 195 } 196 197 void 198 parsetags(slist_t *list, char *args) 199 { 200 char *p, *e; 201 int len; 202 203 if (args == NULL) { 204 addtag(list, NULL); 205 return; 206 } 207 while ((p = strsep(&args, ",")) != NULL) { 208 if (*p == '\0') 209 continue; 210 len = strlen(p) + 3; /* "," + p + ",\0" */ 211 if ((e = malloc(len)) == NULL) 212 mtree_err("memory allocation error"); 213 snprintf(e, len, ",%s,", p); 214 addtag(list, e); 215 } 216 } 217 218 /* 219 * matchtags 220 * returns 0 if there's a match from the exclude list in the node's tags, 221 * or there's an include list and no match. 222 * return 1 otherwise. 223 */ 224 int 225 matchtags(NODE *node) 226 { 227 int i; 228 229 if (node->tags) { 230 for (i = 0; i < excludetags.count; i++) 231 if (strstr(node->tags, excludetags.list[i])) 232 break; 233 if (i < excludetags.count) 234 return (0); 235 236 for (i = 0; i < includetags.count; i++) 237 if (strstr(node->tags, includetags.list[i])) 238 break; 239 if (i > 0 && i == includetags.count) 240 return (0); 241 } else if (includetags.count > 0) { 242 return (0); 243 } 244 return (1); 245 } 246 247 u_int 248 nodetoino(u_int type) 249 { 250 251 switch (type) { 252 case F_BLOCK: 253 return S_IFBLK; 254 case F_CHAR: 255 return S_IFCHR; 256 case F_DIR: 257 return S_IFDIR; 258 case F_FIFO: 259 return S_IFIFO; 260 case F_FILE: 261 return S_IFREG; 262 case F_LINK: 263 return S_IFLNK; 264 #ifdef S_IFSOCK 265 case F_SOCK: 266 return S_IFSOCK; 267 #endif 268 default: 269 printf("unknown type %d", type); 270 abort(); 271 } 272 /* NOTREACHED */ 273 } 274 275 const char * 276 nodetype(u_int type) 277 { 278 279 return (inotype(nodetoino(type))); 280 } 281 282 283 const char * 284 inotype(u_int type) 285 { 286 287 switch (type & S_IFMT) { 288 case S_IFBLK: 289 return ("block"); 290 case S_IFCHR: 291 return ("char"); 292 case S_IFDIR: 293 return ("dir"); 294 case S_IFIFO: 295 return ("fifo"); 296 case S_IFREG: 297 return ("file"); 298 case S_IFLNK: 299 return ("link"); 300 #ifdef S_IFSOCK 301 case S_IFSOCK: 302 return ("socket"); 303 #endif 304 #ifdef S_IFDOOR 305 case S_IFDOOR: 306 return ("door"); 307 #endif 308 default: 309 return ("unknown"); 310 } 311 /* NOTREACHED */ 312 } 313