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 * $Id$ 29 */ 30 #include <sys/param.h> 31 32 #include <cam/cam.h> 33 34 void 35 cam_strvis(u_int8_t *dst, const u_int8_t *src, int srclen, int dstlen) 36 { 37 38 /* Trim leading/trailing spaces. */ 39 while (srclen > 0 && src[0] == ' ') 40 src++, srclen--; 41 while (srclen > 0 && src[srclen-1] == ' ') 42 srclen--; 43 44 while (srclen > 0 && dstlen > 1) { 45 u_int8_t *cur_pos = dst; 46 47 if (*src < 0x20 || *src >= 0x80) { 48 /* SCSI-II Specifies that these should never occur. */ 49 /* non-printable character */ 50 if (dstlen > 4) { 51 *cur_pos++ = '\\'; 52 *cur_pos++ = ((*src & 0300) >> 6) + '0'; 53 *cur_pos++ = ((*src & 0070) >> 3) + '0'; 54 *cur_pos++ = ((*src & 0007) >> 0) + '0'; 55 } else { 56 *cur_pos++ = '?'; 57 } 58 } else { 59 /* normal character */ 60 *cur_pos++ = *src; 61 } 62 src++; 63 srclen--; 64 dstlen -= cur_pos - dst; 65 dst = cur_pos; 66 } 67 *dst = '\0'; 68 } 69 70 /* 71 * Compare string with pattern, returning 0 on match. 72 * Short pattern matches trailing blanks in name, 73 * wildcard '*' in pattern matches rest of name, 74 * wildcard '?' matches a single non-space character. 75 */ 76 int 77 cam_strmatch(const u_int8_t *str, const u_int8_t *pattern, int str_len) 78 { 79 80 while (*pattern != '\0'&& str_len > 0) { 81 82 if (*pattern == '*') { 83 return (0); 84 } 85 if ((*pattern != *str) 86 && (*pattern != '?' || *str == ' ')) { 87 return (1); 88 } 89 pattern++; 90 str++; 91 str_len--; 92 } 93 while (str_len > 0 && *str++ == ' ') 94 str_len--; 95 96 return (str_len); 97 } 98 99 caddr_t 100 cam_quirkmatch(caddr_t target, caddr_t quirk_table, int num_entries, 101 int entry_size, cam_quirkmatch_t *comp_func) 102 { 103 for (; num_entries > 0; num_entries--, quirk_table += entry_size) { 104 if ((*comp_func)(target, quirk_table) == 0) 105 return (quirk_table); 106 } 107 return (NULL); 108 } 109