freebsd-dev/contrib/apr-util/crypto/uuid.c
Peter Wemm 937a200089 Introduce svnlite so that we can check out our source code again.
This is actually a fully functional build except:
* All internal shared libraries are static linked to make sure there
  is no interference with ports (and to reduce build time).
* It does not have the python/perl/etc plugin or API support.
* By default, it installs as "svnlite" rather than "svn".
* If WITH_SVN added in make.conf, you get "svn".
* If WITHOUT_SVNLITE is in make.conf, this is completely disabled.

To be absolutely clear, this is not intended for any use other than
checking out freebsd source and committing, like we once did with cvs.

It should be usable for small scale local repositories that don't
need the python/perl plugin architecture.
2013-06-18 02:53:45 +00:00

131 lines
3.3 KiB
C

/* 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"
APU_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
APU_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;
}