1/* 2 * Copyright 2000 Massachusetts Institute of Technology 3 * 4 * Permission to use, copy, modify, and distribute this software and 5 * its documentation for any purpose and without fee is hereby 6 * granted, provided that both the above copyright notice and this 7 * permission notice appear in all copies, that both the above 8 * copyright notice and this permission notice appear in all 9 * supporting documentation, and that the name of M.I.T. not be used 10 * in advertising or publicity pertaining to distribution of the 11 * software without specific, written prior permission. M.I.T. makes 12 * no representations about the suitability of this software for any 13 * purpose. It is provided "as is" without express or implied 14 * warranty. 15 * 16 * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS 17 * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, 18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT 20 * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD: src/usr.sbin/mtree/excludes.c,v 1.8 2003/10/21 08:27:05 phk Exp $"); 32 33#include <sys/types.h> 34#include <sys/time.h> /* XXX for mtree.h */ 35#include <sys/queue.h> 36 37#include <err.h> 38#include <fnmatch.h> 39#include <fts.h> 40#include <stdio.h> 41#include <stdint.h> 42#include <stdlib.h> 43 44#include "mtree.h" /* XXX for extern.h */ 45#include "extern.h" 46 47/* 48 * We're assuming that there won't be a whole lot of excludes, 49 * so it's OK to use a stupid algorithm. 50 */ 51struct exclude { 52 LIST_ENTRY(exclude) link; 53 const char *glob; 54 int pathname; 55}; 56static LIST_HEAD(, exclude) excludes; 57 58void 59init_excludes(void) 60{ 61 LIST_INIT(&excludes); 62} 63 64void 65read_excludes_file(const char *name) 66{ 67 FILE *fp; 68 char *line, *str; 69 struct exclude *e; 70 size_t len; 71 72 fp = fopen(name, "r"); 73 if (fp == 0) 74 err(1, "%s", name); 75 76 while ((line = fgetln(fp, &len)) != 0) { 77 if (line[len - 1] == '\n') 78 len--; 79 if (len == 0) 80 continue; 81 82 str = malloc(len + 1); 83 e = malloc(sizeof *e); 84 if (str == 0 || e == 0) 85 errx(1, "memory allocation error"); 86 e->glob = str; 87 memcpy(str, line, len); 88 str[len] = '\0'; 89 if (strchr(str, '/')) 90 e->pathname = 1; 91 else 92 e->pathname = 0; 93 LIST_INSERT_HEAD(&excludes, e, link); 94 } 95 fclose(fp); 96} 97 98int 99check_excludes(const char *fname, const char *path) 100{ 101 struct exclude *e; 102 103 /* fnmatch(3) has a funny return value convention... */ 104#define MATCH(g, n) (fnmatch((g), (n), FNM_PATHNAME) == 0) 105 106 LIST_FOREACH(e, &excludes, link) { 107 if ((e->pathname && MATCH(e->glob, path)) 108 || MATCH(e->glob, fname)) 109 return 1; 110 } 111 return 0; 112} 113