6c648dd642
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.
269 lines
9.2 KiB
C
269 lines
9.2 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* base64 encoder/decoder. Originally part of main/util.c
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* but moved here so that support/ab and apr_sha1.c could
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* use it. This meant removing the apr_palloc()s and adding
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* ugly 'len' functions, which is quite a nasty cost.
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*/
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#include "apr_base64.h"
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#if APR_CHARSET_EBCDIC
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#include "apr_xlate.h"
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#endif /* APR_CHARSET_EBCDIC */
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/* aaaack but it's fast and const should make it shared text page. */
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static const unsigned char pr2six[256] =
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{
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#if !APR_CHARSET_EBCDIC
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/* ASCII table */
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64, 64, 64, 63,
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52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 64, 64, 64,
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64, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
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15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 64, 64, 64, 64, 64,
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64, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
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41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
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#else /*APR_CHARSET_EBCDIC*/
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/* EBCDIC table */
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 63, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 26, 27, 28, 29, 30, 31, 32, 33, 34, 64, 64, 64, 64, 64, 64,
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64, 35, 36, 37, 38, 39, 40, 41, 42, 43, 64, 64, 64, 64, 64, 64,
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64, 64, 44, 45, 46, 47, 48, 49, 50, 51, 64, 64, 64, 64, 64, 64,
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64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
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64, 0, 1, 2, 3, 4, 5, 6, 7, 8, 64, 64, 64, 64, 64, 64,
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64, 9, 10, 11, 12, 13, 14, 15, 16, 17, 64, 64, 64, 64, 64, 64,
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64, 64, 18, 19, 20, 21, 22, 23, 24, 25, 64, 64, 64, 64, 64, 64,
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52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 64, 64, 64
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#endif /*APR_CHARSET_EBCDIC*/
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};
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#if APR_CHARSET_EBCDIC
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static apr_xlate_t *xlate_to_ebcdic;
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static unsigned char os_toascii[256];
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APU_DECLARE(apr_status_t) apr_base64init_ebcdic(apr_xlate_t *to_ascii,
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apr_xlate_t *to_ebcdic)
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{
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int i;
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apr_size_t inbytes_left, outbytes_left;
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apr_status_t rv;
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int onoff;
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/* Only single-byte conversion is supported.
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*/
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rv = apr_xlate_sb_get(to_ascii, &onoff);
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if (rv) {
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return rv;
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}
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if (!onoff) { /* If conversion is not single-byte-only */
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return APR_EINVAL;
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}
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rv = apr_xlate_sb_get(to_ebcdic, &onoff);
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if (rv) {
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return rv;
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}
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if (!onoff) { /* If conversion is not single-byte-only */
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return APR_EINVAL;
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}
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xlate_to_ebcdic = to_ebcdic;
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for (i = 0; i < sizeof(os_toascii); i++) {
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os_toascii[i] = i;
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}
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inbytes_left = outbytes_left = sizeof(os_toascii);
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apr_xlate_conv_buffer(to_ascii, os_toascii, &inbytes_left,
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os_toascii, &outbytes_left);
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return APR_SUCCESS;
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}
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#endif /*APR_CHARSET_EBCDIC*/
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APU_DECLARE(int) apr_base64_decode_len(const char *bufcoded)
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{
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int nbytesdecoded;
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register const unsigned char *bufin;
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register apr_size_t nprbytes;
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bufin = (const unsigned char *) bufcoded;
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while (pr2six[*(bufin++)] <= 63);
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nprbytes = (bufin - (const unsigned char *) bufcoded) - 1;
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nbytesdecoded = (((int)nprbytes + 3) / 4) * 3;
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return nbytesdecoded + 1;
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}
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APU_DECLARE(int) apr_base64_decode(char *bufplain, const char *bufcoded)
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{
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#if APR_CHARSET_EBCDIC
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apr_size_t inbytes_left, outbytes_left;
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#endif /* APR_CHARSET_EBCDIC */
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int len;
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len = apr_base64_decode_binary((unsigned char *) bufplain, bufcoded);
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#if APR_CHARSET_EBCDIC
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inbytes_left = outbytes_left = len;
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apr_xlate_conv_buffer(xlate_to_ebcdic, bufplain, &inbytes_left,
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bufplain, &outbytes_left);
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#endif /* APR_CHARSET_EBCDIC */
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bufplain[len] = '\0';
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return len;
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}
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/* This is the same as apr_base64_decode() except on EBCDIC machines, where
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* the conversion of the output to ebcdic is left out.
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*/
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APU_DECLARE(int) apr_base64_decode_binary(unsigned char *bufplain,
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const char *bufcoded)
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{
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int nbytesdecoded;
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register const unsigned char *bufin;
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register unsigned char *bufout;
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register apr_size_t nprbytes;
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bufin = (const unsigned char *) bufcoded;
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while (pr2six[*(bufin++)] <= 63);
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nprbytes = (bufin - (const unsigned char *) bufcoded) - 1;
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nbytesdecoded = (((int)nprbytes + 3) / 4) * 3;
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bufout = (unsigned char *) bufplain;
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bufin = (const unsigned char *) bufcoded;
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while (nprbytes > 4) {
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*(bufout++) =
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(unsigned char) (pr2six[*bufin] << 2 | pr2six[bufin[1]] >> 4);
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*(bufout++) =
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(unsigned char) (pr2six[bufin[1]] << 4 | pr2six[bufin[2]] >> 2);
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*(bufout++) =
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(unsigned char) (pr2six[bufin[2]] << 6 | pr2six[bufin[3]]);
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bufin += 4;
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nprbytes -= 4;
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}
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/* Note: (nprbytes == 1) would be an error, so just ingore that case */
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if (nprbytes > 1) {
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*(bufout++) =
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(unsigned char) (pr2six[*bufin] << 2 | pr2six[bufin[1]] >> 4);
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}
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if (nprbytes > 2) {
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*(bufout++) =
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(unsigned char) (pr2six[bufin[1]] << 4 | pr2six[bufin[2]] >> 2);
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}
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if (nprbytes > 3) {
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*(bufout++) =
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(unsigned char) (pr2six[bufin[2]] << 6 | pr2six[bufin[3]]);
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}
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nbytesdecoded -= (4 - (int)nprbytes) & 3;
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return nbytesdecoded;
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}
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static const char basis_64[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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APU_DECLARE(int) apr_base64_encode_len(int len)
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{
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return ((len + 2) / 3 * 4) + 1;
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}
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APU_DECLARE(int) apr_base64_encode(char *encoded, const char *string, int len)
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{
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#if !APR_CHARSET_EBCDIC
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return apr_base64_encode_binary(encoded, (const unsigned char *) string, len);
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#else /* APR_CHARSET_EBCDIC */
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int i;
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char *p;
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p = encoded;
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for (i = 0; i < len - 2; i += 3) {
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*p++ = basis_64[(os_toascii[string[i]] >> 2) & 0x3F];
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*p++ = basis_64[((os_toascii[string[i]] & 0x3) << 4) |
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((int) (os_toascii[string[i + 1]] & 0xF0) >> 4)];
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*p++ = basis_64[((os_toascii[string[i + 1]] & 0xF) << 2) |
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((int) (os_toascii[string[i + 2]] & 0xC0) >> 6)];
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*p++ = basis_64[os_toascii[string[i + 2]] & 0x3F];
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}
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if (i < len) {
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*p++ = basis_64[(os_toascii[string[i]] >> 2) & 0x3F];
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if (i == (len - 1)) {
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*p++ = basis_64[((os_toascii[string[i]] & 0x3) << 4)];
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*p++ = '=';
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}
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else {
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*p++ = basis_64[((os_toascii[string[i]] & 0x3) << 4) |
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((int) (os_toascii[string[i + 1]] & 0xF0) >> 4)];
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*p++ = basis_64[((os_toascii[string[i + 1]] & 0xF) << 2)];
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}
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*p++ = '=';
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}
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*p++ = '\0';
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return p - encoded;
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#endif /* APR_CHARSET_EBCDIC */
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}
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/* This is the same as apr_base64_encode() except on EBCDIC machines, where
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* the conversion of the input to ascii is left out.
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*/
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APU_DECLARE(int) apr_base64_encode_binary(char *encoded,
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const unsigned char *string, int len)
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{
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int i;
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char *p;
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p = encoded;
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for (i = 0; i < len - 2; i += 3) {
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*p++ = basis_64[(string[i] >> 2) & 0x3F];
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*p++ = basis_64[((string[i] & 0x3) << 4) |
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((int) (string[i + 1] & 0xF0) >> 4)];
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*p++ = basis_64[((string[i + 1] & 0xF) << 2) |
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((int) (string[i + 2] & 0xC0) >> 6)];
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*p++ = basis_64[string[i + 2] & 0x3F];
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}
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if (i < len) {
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*p++ = basis_64[(string[i] >> 2) & 0x3F];
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if (i == (len - 1)) {
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*p++ = basis_64[((string[i] & 0x3) << 4)];
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*p++ = '=';
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}
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else {
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*p++ = basis_64[((string[i] & 0x3) << 4) |
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((int) (string[i + 1] & 0xF0) >> 4)];
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*p++ = basis_64[((string[i + 1] & 0xF) << 2)];
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}
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*p++ = '=';
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}
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*p++ = '\0';
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return (int)(p - encoded);
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}
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