| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <stdio.h> /* for sprintf */ |
| |
| #include "apr.h" |
| #include "apr_uuid.h" |
| #include "apr_errno.h" |
| #include "apr_lib.h" |
| |
| |
| APR_DECLARE(void) apr_uuid_format(char *buffer, const apr_uuid_t *uuid) |
| { |
| const unsigned char *d = uuid->data; |
| |
| sprintf(buffer, |
| "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", |
| d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7], |
| d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15]); |
| } |
| |
| /* convert a pair of hex digits to an integer value [0,255] */ |
| #if 'A' == 65 |
| static unsigned char parse_hexpair(const char *s) |
| { |
| int result; |
| int temp; |
| |
| result = s[0] - '0'; |
| if (result > 48) |
| result = (result - 39) << 4; |
| else if (result > 16) |
| result = (result - 7) << 4; |
| else |
| result = result << 4; |
| |
| temp = s[1] - '0'; |
| if (temp > 48) |
| result |= temp - 39; |
| else if (temp > 16) |
| result |= temp - 7; |
| else |
| result |= temp; |
| |
| return (unsigned char)result; |
| } |
| #else |
| static unsigned char parse_hexpair(const char *s) |
| { |
| int result; |
| |
| if (isdigit(*s)) { |
| result = (*s - '0') << 4; |
| } |
| else { |
| if (isupper(*s)) { |
| result = (*s - 'A' + 10) << 4; |
| } |
| else { |
| result = (*s - 'a' + 10) << 4; |
| } |
| } |
| |
| ++s; |
| if (isdigit(*s)) { |
| result |= (*s - '0'); |
| } |
| else { |
| if (isupper(*s)) { |
| result |= (*s - 'A' + 10); |
| } |
| else { |
| result |= (*s - 'a' + 10); |
| } |
| } |
| |
| return (unsigned char)result; |
| } |
| #endif |
| |
| APR_DECLARE(apr_status_t) apr_uuid_parse(apr_uuid_t *uuid, |
| const char *uuid_str) |
| { |
| int i; |
| unsigned char *d = uuid->data; |
| |
| for (i = 0; i < 36; ++i) { |
| char c = uuid_str[i]; |
| if (!apr_isxdigit(c) && |
| !(c == '-' && (i == 8 || i == 13 || i == 18 || i == 23))) |
| /* ### need a better value */ |
| return APR_BADARG; |
| } |
| if (uuid_str[36] != '\0') { |
| /* ### need a better value */ |
| return APR_BADARG; |
| } |
| |
| d[0] = parse_hexpair(&uuid_str[0]); |
| d[1] = parse_hexpair(&uuid_str[2]); |
| d[2] = parse_hexpair(&uuid_str[4]); |
| d[3] = parse_hexpair(&uuid_str[6]); |
| |
| d[4] = parse_hexpair(&uuid_str[9]); |
| d[5] = parse_hexpair(&uuid_str[11]); |
| |
| d[6] = parse_hexpair(&uuid_str[14]); |
| d[7] = parse_hexpair(&uuid_str[16]); |
| |
| d[8] = parse_hexpair(&uuid_str[19]); |
| d[9] = parse_hexpair(&uuid_str[21]); |
| |
| for (i = 6; i--;) |
| d[10 + i] = parse_hexpair(&uuid_str[i*2+24]); |
| |
| return APR_SUCCESS; |
| } |