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110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
/*
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* Generic utility routines for the Common Access Method layer.
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*
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* Copyright (c) 1997 Justin T. Gibbs.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <cam/cam.h>
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void
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cam_strvis(u_int8_t *dst, const u_int8_t *src, int srclen, int dstlen)
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{
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/* Trim leading/trailing spaces, nulls. */
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while (srclen > 0 && src[0] == ' ')
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src++, srclen--;
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while (srclen > 0
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&& (src[srclen-1] == ' ' || src[srclen-1] == '\0'))
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srclen--;
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while (srclen > 0 && dstlen > 1) {
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u_int8_t *cur_pos = dst;
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if (*src < 0x20 || *src >= 0x80) {
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/* SCSI-II Specifies that these should never occur. */
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/* non-printable character */
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if (dstlen > 4) {
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*cur_pos++ = '\\';
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*cur_pos++ = ((*src & 0300) >> 6) + '0';
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*cur_pos++ = ((*src & 0070) >> 3) + '0';
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*cur_pos++ = ((*src & 0007) >> 0) + '0';
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} else {
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*cur_pos++ = '?';
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}
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} else {
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/* normal character */
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*cur_pos++ = *src;
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}
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src++;
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srclen--;
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dstlen -= cur_pos - dst;
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dst = cur_pos;
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}
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*dst = '\0';
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}
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/*
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* Compare string with pattern, returning 0 on match.
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* Short pattern matches trailing blanks in name,
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* wildcard '*' in pattern matches rest of name,
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* wildcard '?' matches a single non-space character.
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*/
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int
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cam_strmatch(const u_int8_t *str, const u_int8_t *pattern, int str_len)
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{
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while (*pattern != '\0'&& str_len > 0) {
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if (*pattern == '*') {
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return (0);
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}
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if ((*pattern != *str)
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&& (*pattern != '?' || *str == ' ')) {
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return (1);
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}
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pattern++;
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str++;
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str_len--;
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}
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while (str_len > 0 && *str++ == ' ')
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str_len--;
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return (str_len);
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}
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caddr_t
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cam_quirkmatch(caddr_t target, caddr_t quirk_table, int num_entries,
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int entry_size, cam_quirkmatch_t *comp_func)
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{
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for (; num_entries > 0; num_entries--, quirk_table += entry_size) {
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if ((*comp_func)(target, quirk_table) == 0)
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return (quirk_table);
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}
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return (NULL);
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}
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