1251876Speter/* Licensed to the Apache Software Foundation (ASF) under one or more 2251876Speter * contributor license agreements. See the NOTICE file distributed with 3251876Speter * this work for additional information regarding copyright ownership. 4251876Speter * The ASF licenses this file to You under the Apache License, Version 2.0 5251876Speter * (the "License"); you may not use this file except in compliance with 6251876Speter * the License. You may obtain a copy of the License at 7251876Speter * 8251876Speter * http://www.apache.org/licenses/LICENSE-2.0 9251876Speter * 10251876Speter * Unless required by applicable law or agreed to in writing, software 11251876Speter * distributed under the License is distributed on an "AS IS" BASIS, 12251876Speter * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13251876Speter * See the License for the specific language governing permissions and 14251876Speter * limitations under the License. 15251876Speter */ 16251876Speter 17251876Speter#include <stdio.h> /* for sprintf */ 18251876Speter 19251876Speter#include "apr.h" 20251876Speter#include "apr_uuid.h" 21251876Speter#include "apr_errno.h" 22251876Speter#include "apr_lib.h" 23251876Speter 24251876Speter 25251876SpeterAPU_DECLARE(void) apr_uuid_format(char *buffer, const apr_uuid_t *uuid) 26251876Speter{ 27251876Speter const unsigned char *d = uuid->data; 28251876Speter 29251876Speter sprintf(buffer, 30251876Speter "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", 31251876Speter d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7], 32251876Speter d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15]); 33251876Speter} 34251876Speter 35251876Speter/* convert a pair of hex digits to an integer value [0,255] */ 36251876Speter#if 'A' == 65 37251876Speterstatic unsigned char parse_hexpair(const char *s) 38251876Speter{ 39251876Speter int result; 40251876Speter int temp; 41251876Speter 42251876Speter result = s[0] - '0'; 43251876Speter if (result > 48) 44251876Speter result = (result - 39) << 4; 45251876Speter else if (result > 16) 46251876Speter result = (result - 7) << 4; 47251876Speter else 48251876Speter result = result << 4; 49251876Speter 50251876Speter temp = s[1] - '0'; 51251876Speter if (temp > 48) 52251876Speter result |= temp - 39; 53251876Speter else if (temp > 16) 54251876Speter result |= temp - 7; 55251876Speter else 56251876Speter result |= temp; 57251876Speter 58251876Speter return (unsigned char)result; 59251876Speter} 60251876Speter#else 61251876Speterstatic unsigned char parse_hexpair(const char *s) 62251876Speter{ 63251876Speter int result; 64251876Speter 65251876Speter if (isdigit(*s)) { 66251876Speter result = (*s - '0') << 4; 67251876Speter } 68251876Speter else { 69251876Speter if (isupper(*s)) { 70251876Speter result = (*s - 'A' + 10) << 4; 71251876Speter } 72251876Speter else { 73251876Speter result = (*s - 'a' + 10) << 4; 74251876Speter } 75251876Speter } 76251876Speter 77251876Speter ++s; 78251876Speter if (isdigit(*s)) { 79251876Speter result |= (*s - '0'); 80251876Speter } 81251876Speter else { 82251876Speter if (isupper(*s)) { 83251876Speter result |= (*s - 'A' + 10); 84251876Speter } 85251876Speter else { 86251876Speter result |= (*s - 'a' + 10); 87251876Speter } 88251876Speter } 89251876Speter 90251876Speter return (unsigned char)result; 91251876Speter} 92251876Speter#endif 93251876Speter 94251876SpeterAPU_DECLARE(apr_status_t) apr_uuid_parse(apr_uuid_t *uuid, 95251876Speter const char *uuid_str) 96251876Speter{ 97251876Speter int i; 98251876Speter unsigned char *d = uuid->data; 99251876Speter 100251876Speter for (i = 0; i < 36; ++i) { 101251876Speter char c = uuid_str[i]; 102251876Speter if (!apr_isxdigit(c) && 103251876Speter !(c == '-' && (i == 8 || i == 13 || i == 18 || i == 23))) 104251876Speter /* ### need a better value */ 105251876Speter return APR_BADARG; 106251876Speter } 107251876Speter if (uuid_str[36] != '\0') { 108251876Speter /* ### need a better value */ 109251876Speter return APR_BADARG; 110251876Speter } 111251876Speter 112251876Speter d[0] = parse_hexpair(&uuid_str[0]); 113251876Speter d[1] = parse_hexpair(&uuid_str[2]); 114251876Speter d[2] = parse_hexpair(&uuid_str[4]); 115251876Speter d[3] = parse_hexpair(&uuid_str[6]); 116251876Speter 117251876Speter d[4] = parse_hexpair(&uuid_str[9]); 118251876Speter d[5] = parse_hexpair(&uuid_str[11]); 119251876Speter 120251876Speter d[6] = parse_hexpair(&uuid_str[14]); 121251876Speter d[7] = parse_hexpair(&uuid_str[16]); 122251876Speter 123251876Speter d[8] = parse_hexpair(&uuid_str[19]); 124251876Speter d[9] = parse_hexpair(&uuid_str[21]); 125251876Speter 126251876Speter for (i = 6; i--;) 127251876Speter d[10 + i] = parse_hexpair(&uuid_str[i*2+24]); 128251876Speter 129251876Speter return APR_SUCCESS; 130251876Speter} 131