1 files changed, 108 insertions, 0 deletions
diff --git a/sys/cam/cam.c b/sys/cam/cam.c
new file mode 100644
index 0000000..8be4568
--- /dev/null
+++ b/sys/cam/cam.c
@@ -0,0 +1,108 @@
+/*
+ * Generic utility routines for the Common Access Method layer.
+ *
+ * Copyright (c) 1997 Justin T. Gibbs.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification, immediately at the beginning of the file.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      $Id$
+ */
+#include <sys/param.h>
+
+#include <cam/cam.h>
+
+void
+cam_strvis(u_int8_t *dst, const u_int8_t *src, int srclen, int dstlen)
+{
+
+	/* Trim leading/trailing spaces. */
+	while (srclen > 0 && src[0] == ' ')
+		src++, srclen--;
+	while (srclen > 0 && src[srclen-1] == ' ')
+		srclen--;
+
+	while (srclen > 0 && dstlen > 1) {
+		u_int8_t *cur_pos = dst;
+
+		if (*src < 0x20 || *src >= 0x80) {
+			/* SCSI-II Specifies that these should never occur. */
+			/* non-printable character */
+			if (dstlen > 4) {
+				*cur_pos++ = '\\';
+				*cur_pos++ = ((*src & 0300) >> 6) + '0';
+				*cur_pos++ = ((*src & 0070) >> 3) + '0';
+				*cur_pos++ = ((*src & 0007) >> 0) + '0';
+			} else {
+				*cur_pos++ = '?';
+			}
+		} else {
+			/* normal character */
+			*cur_pos++ = *src;
+		}
+		src++;
+		srclen--;
+		dstlen -= cur_pos - dst;
+		dst = cur_pos;
+	}
+	*dst = '\0';
+}
+
+/*
+ * Compare string with pattern, returning 0 on match.
+ * Short pattern matches trailing blanks in name,
+ * wildcard '*' in pattern matches rest of name,
+ * wildcard '?' matches a single non-space character.
+ */
+int
+cam_strmatch(const u_int8_t *str, const u_int8_t *pattern, int str_len)
+{
+
+	while (*pattern != '\0'&& str_len > 0) {  
+
+		if (*pattern == '*') {
+			return (0);
+		}
+		if ((*pattern != *str)
+		 && (*pattern != '?' || *str == ' ')) {
+			return (1);
+		}
+		pattern++;
+		str++;
+		str_len--;
+	}
+	while (str_len > 0 && *str++ == ' ')
+		str_len--;
+
+	return (str_len);
+}
+
+caddr_t
+cam_quirkmatch(caddr_t target, caddr_t quirk_table, int num_entries,
+	       int entry_size, cam_quirkmatch_t *comp_func)
+{
+	for (; num_entries > 0; num_entries--, quirk_table += entry_size) {
+		if ((*comp_func)(target, quirk_table) == 0)
+			return (quirk_table);
+	}
+	return (NULL);
+}