1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <stdio.h> /* for sprintf */
21 #include "apr_errno.h"
25 APU_DECLARE(void) apr_uuid_format(char *buffer, const apr_uuid_t *uuid)
27 const unsigned char *d = uuid->data;
30 "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
31 d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
32 d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15]);
35 /* convert a pair of hex digits to an integer value [0,255] */
37 static unsigned char parse_hexpair(const char *s)
44 result = (result - 39) << 4;
46 result = (result - 7) << 4;
58 return (unsigned char)result;
61 static unsigned char parse_hexpair(const char *s)
66 result = (*s - '0') << 4;
70 result = (*s - 'A' + 10) << 4;
73 result = (*s - 'a' + 10) << 4;
83 result |= (*s - 'A' + 10);
86 result |= (*s - 'a' + 10);
90 return (unsigned char)result;
94 APU_DECLARE(apr_status_t) apr_uuid_parse(apr_uuid_t *uuid,
98 unsigned char *d = uuid->data;
100 for (i = 0; i < 36; ++i) {
101 char c = uuid_str[i];
102 if (!apr_isxdigit(c) &&
103 !(c == '-' && (i == 8 || i == 13 || i == 18 || i == 23)))
104 /* ### need a better value */
107 if (uuid_str[36] != '\0') {
108 /* ### need a better value */
112 d[0] = parse_hexpair(&uuid_str[0]);
113 d[1] = parse_hexpair(&uuid_str[2]);
114 d[2] = parse_hexpair(&uuid_str[4]);
115 d[3] = parse_hexpair(&uuid_str[6]);
117 d[4] = parse_hexpair(&uuid_str[9]);
118 d[5] = parse_hexpair(&uuid_str[11]);
120 d[6] = parse_hexpair(&uuid_str[14]);
121 d[7] = parse_hexpair(&uuid_str[16]);
123 d[8] = parse_hexpair(&uuid_str[19]);
124 d[9] = parse_hexpair(&uuid_str[21]);
127 d[10 + i] = parse_hexpair(&uuid_str[i*2+24]);