1 /* 2 * Generic utility routines for the Common Access Method layer. 3 * 4 * Copyright (c) 1997 Justin T. Gibbs. 5 * 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 * without modification, immediately at the beginning of the file. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: src/sys/cam/cam.c,v 1.3 1999/08/28 00:40:38 peter Exp $ 29 * $DragonFly: src/sys/bus/cam/cam.c,v 1.2 2003/06/17 04:28:18 dillon Exp $ 30 */ 31 #include <sys/param.h> 32 33 #include <cam/cam.h> 34 35 void 36 cam_strvis(u_int8_t *dst, const u_int8_t *src, int srclen, int dstlen) 37 { 38 39 /* Trim leading/trailing spaces, nulls. */ 40 while (srclen > 0 && src[0] == ' ') 41 src++, srclen--; 42 while (srclen > 0 43 && (src[srclen-1] == ' ' || src[srclen-1] == '\0')) 44 srclen--; 45 46 while (srclen > 0 && dstlen > 1) { 47 u_int8_t *cur_pos = dst; 48 49 if (*src < 0x20 || *src >= 0x80) { 50 /* SCSI-II Specifies that these should never occur. */ 51 /* non-printable character */ 52 if (dstlen > 4) { 53 *cur_pos++ = '\\'; 54 *cur_pos++ = ((*src & 0300) >> 6) + '0'; 55 *cur_pos++ = ((*src & 0070) >> 3) + '0'; 56 *cur_pos++ = ((*src & 0007) >> 0) + '0'; 57 } else { 58 *cur_pos++ = '?'; 59 } 60 } else { 61 /* normal character */ 62 *cur_pos++ = *src; 63 } 64 src++; 65 srclen--; 66 dstlen -= cur_pos - dst; 67 dst = cur_pos; 68 } 69 *dst = '\0'; 70 } 71 72 /* 73 * Compare string with pattern, returning 0 on match. 74 * Short pattern matches trailing blanks in name, 75 * wildcard '*' in pattern matches rest of name, 76 * wildcard '?' matches a single non-space character. 77 */ 78 int 79 cam_strmatch(const u_int8_t *str, const u_int8_t *pattern, int str_len) 80 { 81 82 while (*pattern != '\0'&& str_len > 0) { 83 84 if (*pattern == '*') { 85 return (0); 86 } 87 if ((*pattern != *str) 88 && (*pattern != '?' || *str == ' ')) { 89 return (1); 90 } 91 pattern++; 92 str++; 93 str_len--; 94 } 95 while (str_len > 0 && *str++ == ' ') 96 str_len--; 97 98 return (str_len); 99 } 100 101 caddr_t 102 cam_quirkmatch(caddr_t target, caddr_t quirk_table, int num_entries, 103 int entry_size, cam_quirkmatch_t *comp_func) 104 { 105 for (; num_entries > 0; num_entries--, quirk_table += entry_size) { 106 if ((*comp_func)(target, quirk_table) == 0) 107 return (quirk_table); 108 } 109 return (NULL); 110 } 111