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Diffstat (limited to '')
| -rw-r--r-- | encoding/apr_encode.c | 1577 |
1 files changed, 1577 insertions, 0 deletions
diff --git a/encoding/apr_encode.c b/encoding/apr_encode.c new file mode 100644 index 0000000..c18f442 --- /dev/null +++ b/encoding/apr_encode.c @@ -0,0 +1,1577 @@ +/* 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. + */ + +/* encode/decode functions. + * + * These functions perform various encoding operations, and are provided in + * pairs, a function to query the length of and encode existing buffers, as + * well as companion functions to perform the same process to memory + * allocated from a pool. + * + * The API is designed to have the smallest possible RAM footprint, and so + * will only allocate the exact amount of RAM needed for each conversion. + */ + +#include "apr_encode.h" +#include "apr_lib.h" +#include "apr_strings.h" +#include "apr_encode_private.h" + +/* lookup table: fast and const should make it shared text page. */ +static const unsigned char pr2six[256] = +{ +#if !APR_CHARSET_EBCDIC + /* ASCII table */ + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64, 62, 64, 63, + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 128, 64, 64, + 64, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 64, 64, 64, 64, 63, + 64, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64 +#else /* APR_CHARSET_EBCDIC */ + /* EBCDIC table */ + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 62, 63, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 63, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 128, 64, + 64, 26, 27, 28, 29, 30, 31, 32, 33, 34, 64, 64, 64, 64, 64, 64, + 64, 35, 36, 37, 38, 39, 40, 41, 42, 43, 64, 64, 64, 64, 64, 64, + 64, 64, 44, 45, 46, 47, 48, 49, 50, 51, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 0, 1, 2, 3, 4, 5, 6, 7, 8, 64, 64, 64, 64, 64, 64, + 64, 9, 10, 11, 12, 13, 14, 15, 16, 17, 64, 64, 64, 64, 64, 64, + 64, 64, 18, 19, 20, 21, 22, 23, 24, 25, 64, 64, 64, 64, 64, 64, + 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 64, 64, 64 +#endif /* APR_CHARSET_EBCDIC */ +}; + +static const unsigned char pr2five[256] = +{ +#if !APR_CHARSET_EBCDIC + /* ASCII table */ + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 26, 27, 28, 29, 30, 31, 32, 32, 32, 32, 32, 128, 32, 32, + 32, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32 +#else /* APR_CHARSET_EBCDIC */ + /* EBCDIC table */ + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 128, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 0, 1, 2, 3, 4, 5, 6, 7, 8, 32, 32, 32, 32, 32, 32, + 32, 9, 10, 11, 12, 13, 14, 15, 16, 17, 32, 32, 32, 32, 32, 32, + 32, 32, 18, 19, 20, 21, 22, 23, 24, 25, 32, 32, 32, 32, 32, 32, + 32, 32, 26, 27, 28, 29, 30, 31, 32, 32, 32, 32, 32, 32, 32, 32 +#endif /* APR_CHARSET_EBCDIC */ +}; + +static const unsigned char pr2fivehex[256] = +{ +#if !APR_CHARSET_EBCDIC + /* ASCII table */ + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 32, 32, 32, 128, 32, 32, + 32, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32 +#else /* APR_CHARSET_EBCDIC */ + /* EBCDIC table */ + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 128, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 32, 10, 11, 12, 13, 14, 15, 16, 17, 18, 32, 32, 32, 32, 32, 32, + 32, 19, 20, 21, 22, 23, 24, 25, 26, 27, 32, 32, 32, 32, 32, 32, + 32, 32, 28, 29, 30, 31, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 32, 32, 32, 32, 32, 32 +#endif /* APR_CHARSET_EBCDIC */ +}; + +static const unsigned char pr2two[256] = +{ +#if !APR_CHARSET_EBCDIC + /* ASCII table */ + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 32, 16, 16, 16, 16, 16, + 16, 10, 11, 12, 13, 14, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 10, 11, 12, 13, 14, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16 +#else /* APR_CHARSET_EBCDIC */ + /* EBCDIC table */ + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 32, 16, 16, 16, 16, 16, + 16, 10, 11, 12, 13, 14, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 10, 11, 12, 13, 14, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 16, 16, 16, 16, 16, 16 +#endif /* APR_CHARSET_EBCDIC */ +}; + +static const char base64[] = +"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; +static const char base64url[] = +"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"; + +static const char base32[] = +"ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"; +static const char base32hex[] = +"0123456789ABCDEFGHIJKLMNOPQRSTUV"; + +static const char base16[] = "0123456789ABCDEF"; +static const char base16lower[] = "0123456789abcdef"; + +APR_DECLARE(apr_status_t) apr_encode_base64(char *dest, const char *src, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + const char *base; + + if (src && slen == APR_ENCODE_STRING) { + count = strlen(src); + } + else if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (dest) { + char *bufout = dest; + apr_size_t i = 0; + + if (0 == ((flags & APR_ENCODE_BASE64URL))) { + base = base64; + } + else { + base = base64url; + } + + if (count > 2) { + for (; i < count - 2; i += 3) { + *bufout++ = base[(TO_ASCII(src[i]) >> 2) & 0x3F]; + *bufout++ = base[((TO_ASCII(src[i]) & 0x3) << 4 | + (TO_ASCII(src[i + 1]) & 0xF0) >> 4)]; + *bufout++ = base[((TO_ASCII(src[i + 1]) & 0xF) << 2 | + (TO_ASCII(src[i + 2]) & 0xC0) >> 6)]; + *bufout++ = base[TO_ASCII(src[i + 2]) & 0x3F]; + } + } + if (i < count) { + *bufout++ = base[(TO_ASCII(src[i]) >> 2) & 0x3F]; + if (i == (count - 1)) { + *bufout++ = base[(TO_ASCII(src[i]) & 0x3) << 4]; + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + } + } + else { + *bufout++ = base[((TO_ASCII(src[i]) & 0x3) << 4 | + (TO_ASCII(src[i + 1]) & 0xF0) >> 4)]; + *bufout++ = base[(TO_ASCII(src[i + 1]) & 0xF) << 2]; + } + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + } + } + + dlen = bufout - dest; + dest[dlen] = '\0'; + } + else { + dlen = ((count + 2u) / 3u) * 4u + 1u; + if (dlen <= count) { + status = APR_ENOSPC; + } + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(apr_status_t) apr_encode_base64_binary(char *dest, const unsigned char *src, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + const char *base; + + if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (dest) { + char *bufout = dest; + apr_size_t i = 0; + + if (0 == ((flags & APR_ENCODE_BASE64URL))) { + base = base64; + } + else { + base = base64url; + } + + if (count > 2) { + for (; i < count - 2; i += 3) { + *bufout++ = base[(src[i] >> 2) & 0x3F]; + *bufout++ = base[((src[i] & 0x3) << 4 | + (src[i + 1] & 0xF0) >> 4)]; + *bufout++ = base[((src[i + 1] & 0xF) << 2 | + (src[i + 2] & 0xC0) >> 6)]; + *bufout++ = base[src[i + 2] & 0x3F]; + } + } + if (i < count) { + *bufout++ = base[(src[i] >> 2) & 0x3F]; + if (i == (count - 1)) { + *bufout++ = base[((src[i] & 0x3) << 4)]; + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + } + } + else { + *bufout++ = base[((src[i] & 0x3) << 4 | + (src[i + 1] & 0xF0) >> 4)]; + *bufout++ = base[(src[i + 1] & 0xF) << 2]; + } + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + } + } + + dlen = bufout - dest; + dest[dlen] = '\0'; + } + else { + dlen = ((count + 2u) / 3u) * 4u + 1u; + if (dlen <= count) { + status = APR_ENOSPC; + } + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(const char *)apr_pencode_base64(apr_pool_t * p, const char *src, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_size_t size; + + if (!src) { + return NULL; + } + + switch (apr_encode_base64(NULL, src, slen, flags, &size)) { + case APR_SUCCESS:{ + char *cmd = apr_palloc(p, size); + if (cmd) { + apr_encode_base64(cmd, src, slen, flags, len); + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} + +APR_DECLARE(const char *)apr_pencode_base64_binary(apr_pool_t * p, const unsigned char *src, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_size_t size; + + if (!src) { + return NULL; + } + + switch (apr_encode_base64_binary(NULL, src, slen, flags, &size)) { + case APR_SUCCESS:{ + char *cmd = apr_palloc(p, size); + if (cmd) { + apr_encode_base64_binary(cmd, src, slen, flags, len); + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} + +APR_DECLARE(apr_status_t) apr_decode_base64(char *dest, const char *src, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + + if (src && slen == APR_ENCODE_STRING) { + count = strlen(src); + } + else if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (src) { + const unsigned char *bufin; + + bufin = (const unsigned char *)src; + while (count) { + if (pr2six[*bufin] >= 64) { + if (!(flags & APR_ENCODE_RELAXED)) { + if (count <= 2) { + do { + if (pr2six[bufin[count - 1]] <= 64) + break; + } while (--count); + } + if (count) { + status = APR_BADCH; + } + } + break; + } + count--; + bufin++; + } + count = bufin - (const unsigned char *)src; + + if (dest) { + unsigned char *bufout; + + bufout = (unsigned char *)dest; + bufin = (const unsigned char *)src; + + while (count >= 4) { + *(bufout++) = TO_NATIVE(pr2six[bufin[0]] << 2 | + pr2six[bufin[1]] >> 4); + *(bufout++) = TO_NATIVE(pr2six[bufin[1]] << 4 | + pr2six[bufin[2]] >> 2); + *(bufout++) = TO_NATIVE(pr2six[bufin[2]] << 6 | + pr2six[bufin[3]]); + bufin += 4; + count -= 4; + } + + if (count == 1) { + status = APR_EINCOMPLETE; + } + if (count > 1) { + *(bufout++) = TO_NATIVE(pr2six[bufin[0]] << 2 | + pr2six[bufin[1]] >> 4); + } + if (count > 2) { + *(bufout++) = TO_NATIVE(pr2six[bufin[1]] << 4 | + pr2six[bufin[2]] >> 2); + } + + dlen = bufout - (unsigned char *)dest; + dest[dlen] = '\0'; + } + } + + if (!src || !dest) { + dlen = (count / 4u) * 3u + 1u; + switch (count % 4) { + case 3: + dlen += 2; + break; + case 2: + dlen++; + break; + case 1: + status = APR_EINCOMPLETE; + break; + } + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(apr_status_t) apr_decode_base64_binary(unsigned char *dest, + const char *src, apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + + if (src && slen == APR_ENCODE_STRING) { + count = strlen(src); + } + else if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (src) { + const unsigned char *bufin; + + bufin = (const unsigned char *)src; + while (count) { + if (pr2six[*bufin] >= 64) { + if (!(flags & APR_ENCODE_RELAXED)) { + if (count <= 2) { + do { + if (pr2six[bufin[count - 1]] <= 64) + break; + } while (--count); + } + if (count) { + status = APR_BADCH; + } + } + break; + } + count--; + bufin++; + } + count = bufin - (const unsigned char *)src; + + if (dest) { + unsigned char *bufout; + + bufout = (unsigned char *)dest; + bufin = (const unsigned char *)src; + + while (count >= 4) { + *(bufout++) = (pr2six[bufin[0]] << 2 | + pr2six[bufin[1]] >> 4); + *(bufout++) = (pr2six[bufin[1]] << 4 | + pr2six[bufin[2]] >> 2); + *(bufout++) = (pr2six[bufin[2]] << 6 | + pr2six[bufin[3]]); + bufin += 4; + count -= 4; + } + + if (count == 1) { + status = APR_EINCOMPLETE; + } + if (count > 1) { + *(bufout++) = (pr2six[bufin[0]] << 2 | + pr2six[bufin[1]] >> 4); + } + if (count > 2) { + *(bufout++) = (pr2six[bufin[1]] << 4 | + pr2six[bufin[2]] >> 2); + } + + dlen = bufout - dest; + } + } + + if (!src || !dest) { + dlen = (count / 4u) * 3u; + switch (count % 4) { + case 3: + dlen += 2; + break; + case 2: + dlen++; + break; + case 1: + status = APR_EINCOMPLETE; + break; + } + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(const char *)apr_pdecode_base64(apr_pool_t * p, const char *str, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_size_t size; + + if (!str) { + return NULL; + } + + switch (apr_decode_base64(NULL, str, slen, flags, &size)) { + case APR_SUCCESS:{ + void *cmd = apr_palloc(p, size); + if (cmd) { + apr_decode_base64(cmd, str, slen, flags, len); + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} + +APR_DECLARE(const unsigned char *)apr_pdecode_base64_binary(apr_pool_t * p, + const char *str, apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_size_t size; + + if (!str) { + return NULL; + } + + switch (apr_decode_base64_binary(NULL, str, slen, flags, &size)) { + case APR_SUCCESS:{ + unsigned char *cmd = apr_palloc(p, size + 1); + if (cmd) { + apr_decode_base64_binary(cmd, str, slen, flags, len); + cmd[size] = 0; + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} + +APR_DECLARE(apr_status_t) apr_encode_base32(char *dest, const char *src, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + const char *base; + + if (src && slen == APR_ENCODE_STRING) { + count = strlen(src); + } + else if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (dest) { + char *bufout = dest; + apr_size_t i = 0; + + if (!((flags & APR_ENCODE_BASE32HEX))) { + base = base32; + } + else { + base = base32hex; + } + + if (count > 4) { + for (; i < count - 4; i += 5) { + *bufout++ = base[(TO_ASCII(src[i]) >> 3) & 0x1F]; + *bufout++ = base[(((TO_ASCII(src[i]) << 2) & 0x1C) | + ((TO_ASCII(src[i + 1]) >> 6) & 0x3))]; + *bufout++ = base[(TO_ASCII(src[i + 1]) >> 1) & 0x1F]; + *bufout++ = base[(((TO_ASCII(src[i + 1]) << 4) & 0x10) | + ((TO_ASCII(src[i + 2]) >> 4) & 0xF))]; + *bufout++ = base[(((TO_ASCII(src[i + 2]) << 1) & 0x1E) | + ((TO_ASCII(src[i + 3]) >> 7) & 0x1))]; + *bufout++ = base[(TO_ASCII(src[i + 3]) >> 2) & 0x1F]; + *bufout++ = base[(((TO_ASCII(src[i + 3]) << 3) & 0x18) | + ((TO_ASCII(src[i + 4]) >> 5) & 0x7))]; + *bufout++ = base[TO_ASCII(src[i + 4]) & 0x1F]; + } + } + if (i < count) { + *bufout++ = base[(TO_ASCII(src[i]) >> 3) & 0x1F]; + if (i == (count - 1)) { + *bufout++ = base[(TO_ASCII(src[i]) << 2) & 0x1C]; + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + } + } + else if (i == (count - 2)) { + *bufout++ = base[(((TO_ASCII(src[i]) << 2) & 0x1C) | + ((TO_ASCII(src[i + 1]) >> 6) & 0x3))]; + *bufout++ = base[(TO_ASCII(src[i + 1]) >> 1) & 0x1F]; + *bufout++ = base[(TO_ASCII(src[i + 1]) << 4) & 0x10]; + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + } + } + else if (i == (count - 3)) { + *bufout++ = base[(((TO_ASCII(src[i]) << 2) & 0x1C) | + ((TO_ASCII(src[i + 1]) >> 6) & 0x3))]; + *bufout++ = base[(TO_ASCII(src[i + 1]) >> 1) & 0x1F]; + *bufout++ = base[(((TO_ASCII(src[i + 1]) << 4) & 0x10) | + ((TO_ASCII(src[i + 2]) >> 4) & 0xF))]; + *bufout++ = base[(TO_ASCII(src[i + 2]) << 1) & 0x1E]; + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + } + } + else { + *bufout++ = base[(((TO_ASCII(src[i]) << 2) & 0x1C) | + ((TO_ASCII(src[i + 1]) >> 6) & 0x3))]; + *bufout++ = base[(TO_ASCII(src[i + 1]) >> 1) & 0x1F]; + *bufout++ = base[(((TO_ASCII(src[i + 1]) << 4) & 0x10) | + ((TO_ASCII(src[i + 2]) >> 4) & 0xF))]; + *bufout++ = base[(((TO_ASCII(src[i + 2]) << 1) & 0x1E) | + ((TO_ASCII(src[i + 3]) >> 7) & 0x1))]; + *bufout++ = base[(TO_ASCII(src[i + 3]) >> 2) & 0x1F]; + *bufout++ = base[(TO_ASCII(src[i + 3]) << 3) & 0x18]; + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + } + } + } + + dlen = bufout - dest; + dest[dlen] = '\0'; + } + else { + dlen = ((count + 4u) / 5u) * 8u + 1u; + if (dlen <= count) { + status = APR_ENOSPC; + } + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(apr_status_t) apr_encode_base32_binary(char *dest, const unsigned char *src, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + const char *base; + + if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (dest) { + char *bufout = dest; + apr_size_t i = 0; + + if (!((flags & APR_ENCODE_BASE32HEX))) { + base = base32; + } + else { + base = base32hex; + } + + if (count > 4) { + for (; i < count - 4; i += 5) { + *bufout++ = base[((src[i] >> 3) & 0x1F)]; + *bufout++ = base[(((src[i] << 2) & 0x1C) | + ((src[i + 1] >> 6) & 0x3))]; + *bufout++ = base[((src[i + 1] >> 1) & 0x1F)]; + *bufout++ = base[(((src[i + 1] << 4) & 0x10) | + ((src[i + 2] >> 4) & 0xF))]; + *bufout++ = base[(((src[i + 2] << 1) & 0x1E) | + ((src[i + 3] >> 7) & 0x1))]; + *bufout++ = base[((src[i + 3] >> 2) & 0x1F)]; + *bufout++ = base[(((src[i + 3] << 3) & 0x18) | + ((src[i + 4] >> 5) & 0x7))]; + *bufout++ = base[(src[i + 4] & 0x1F)]; + } + } + if (i < count) { + *bufout++ = base[(src[i] >> 3) & 0x1F]; + if (i == (count - 1)) { + *bufout++ = base[((src[i] << 2) & 0x1C)]; + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + } + } + else if (i == (count - 2)) { + *bufout++ = base[(((src[i] << 2) & 0x1C) | + ((src[i + 1] >> 6) & 0x3))]; + *bufout++ = base[((src[i + 1] >> 1) & 0x1F)]; + *bufout++ = base[((src[i + 1] << 4) & 0x10)]; + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + } + } + else if (i == (count - 3)) { + *bufout++ = base[(((src[i] << 2) & 0x1C) | + ((src[i + 1] >> 6) & 0x3))]; + *bufout++ = base[((src[i + 1] >> 1) & 0x1F)]; + *bufout++ = base[(((src[i + 1] << 4) & 0x10) | + ((src[i + 2] >> 4) & 0xF))]; + *bufout++ = base[((src[i + 2] << 1) & 0x1E)]; + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + *bufout++ = '='; + *bufout++ = '='; + } + } + else { + *bufout++ = base[(((src[i] << 2) & 0x1C) | + ((src[i + 1] >> 6) & 0x3))]; + *bufout++ = base[((src[i + 1] >> 1) & 0x1F)]; + *bufout++ = base[(((src[i + 1] << 4) & 0x10) | + ((src[i + 2] >> 4) & 0xF))]; + *bufout++ = base[(((src[i + 2] << 1) & 0x1E) | + ((src[i + 3] >> 7) & 0x1))]; + *bufout++ = base[((src[i + 3] >> 2) & 0x1F)]; + *bufout++ = base[((src[i + 3] << 3) & 0x18)]; + if (!(flags & APR_ENCODE_NOPADDING)) { + *bufout++ = '='; + } + } + } + + dlen = bufout - dest; + dest[dlen] = '\0'; + } + else { + dlen = ((count + 4u) / 5u) * 8u + 1u; + if (dlen <= count) { + status = APR_ENOSPC; + } + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(const char *)apr_pencode_base32(apr_pool_t * p, const char *src, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_size_t size; + + if (!src) { + return NULL; + } + + switch (apr_encode_base32(NULL, src, slen, flags, &size)) { + case APR_SUCCESS:{ + char *cmd = apr_palloc(p, size); + if (cmd) { + apr_encode_base32(cmd, src, slen, flags, len); + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} + +APR_DECLARE(const char *)apr_pencode_base32_binary(apr_pool_t * p, const unsigned char *src, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_size_t size; + + if (!src) { + return NULL; + } + + switch (apr_encode_base32_binary(NULL, src, slen, flags, &size)) { + case APR_SUCCESS:{ + char *cmd = apr_palloc(p, size); + if (cmd) { + apr_encode_base32_binary(cmd, src, slen, flags, len); + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} + +APR_DECLARE(apr_status_t) apr_decode_base32(char *dest, const char *src, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + + if (src && slen == APR_ENCODE_STRING) { + count = strlen(src); + } + else if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (src) { + const unsigned char *bufin; + const unsigned char *pr2; + + if ((flags & APR_ENCODE_BASE32HEX)) { + pr2 = pr2fivehex; + } + else { + pr2 = pr2five; + } + + bufin = (const unsigned char *)src; + while (count) { + if (pr2[*bufin] >= 32) { + if (!(flags & APR_ENCODE_RELAXED)) { + if (count <= 6) { + do { + if (pr2[bufin[count - 1]] <= 32) + break; + } while (--count); + } + if (count) { + status = APR_BADCH; + } + } + break; + } + count--; + bufin++; + } + count = bufin - (const unsigned char *)src; + + if (dest) { + unsigned char *bufout; + + bufout = (unsigned char *)dest; + bufin = (const unsigned char *)src; + + while (count >= 8) { + *(bufout++) = TO_NATIVE(pr2[bufin[0]] << 3 | + pr2[bufin[1]] >> 2); + *(bufout++) = TO_NATIVE(pr2[bufin[1]] << 6 | + pr2[bufin[2]] << 1 | + pr2[bufin[3]] >> 4); + *(bufout++) = TO_NATIVE(pr2[bufin[3]] << 4 | + pr2[bufin[4]] >> 1); + *(bufout++) = TO_NATIVE(pr2[bufin[4]] << 7 | + pr2[bufin[5]] << 2 | + pr2[bufin[6]] >> 3); + *(bufout++) = TO_NATIVE(pr2[bufin[6]] << 5 | + pr2[bufin[7]]); + bufin += 8; + count -= 8; + } + + if (count == 1) { + status = APR_EINCOMPLETE; + } + if (count >= 2) { + *(bufout++) = TO_NATIVE(pr2[bufin[0]] << 3 | + pr2[bufin[1]] >> 2); + } + if (count == 3) { + status = APR_EINCOMPLETE; + } + if (count >= 4) { + *(bufout++) = TO_NATIVE(pr2[bufin[1]] << 6 | + pr2[bufin[2]] << 1 | + pr2[bufin[3]] >> 4); + } + if (count >= 5) { + *(bufout++) = TO_NATIVE(pr2[bufin[3]] << 4 | + pr2[bufin[4]] >> 1); + } + if (count == 6) { + status = APR_EINCOMPLETE; + } + if (count >= 7) { + *(bufout++) = TO_NATIVE(pr2[bufin[4]] << 7 | + pr2[bufin[5]] << 2 | + pr2[bufin[6]] >> 3); + } + + dlen = bufout - (unsigned char *)dest; + dest[dlen] = '\0'; + } + } + + if (!src || !dest) { + dlen = (count / 8u) * 5u + 1u; + switch (count % 8) { + case 7: + dlen += 4; + break; + case 6: + status = APR_EINCOMPLETE; + case 5: + dlen += 3; + break; + case 4: + dlen += 2; + break; + case 3: + status = APR_EINCOMPLETE; + case 2: + dlen++; + break; + case 1: + status = APR_EINCOMPLETE; + break; + } + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(apr_status_t) apr_decode_base32_binary(unsigned char *dest, + const char *src, apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + + if (src && slen == APR_ENCODE_STRING) { + count = strlen(src); + } + else if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (src) { + const unsigned char *bufin; + const unsigned char *pr2; + + if ((flags & APR_ENCODE_BASE32HEX)) { + pr2 = pr2fivehex; + } + else { + pr2 = pr2five; + } + + bufin = (const unsigned char *)src; + while (count) { + if (pr2[*bufin] >= 32) { + if (!(flags & APR_ENCODE_RELAXED)) { + if (count <= 6) { + do { + if (pr2[bufin[count - 1]] <= 32) + break; + } while (--count); + } + if (count) { + status = APR_BADCH; + } + } + break; + } + count--; + bufin++; + } + count = bufin - (const unsigned char *)src; + + if (dest) { + unsigned char *bufout; + + bufout = (unsigned char *)dest; + bufin = (const unsigned char *)src; + + while (count >= 8) { + *(bufout++) = (pr2[bufin[0]] << 3 | + pr2[bufin[1]] >> 2); + *(bufout++) = (pr2[bufin[1]] << 6 | + pr2[bufin[2]] << 1 | + pr2[bufin[3]] >> 4); + *(bufout++) = (pr2[bufin[3]] << 4 | + pr2[bufin[4]] >> 1); + *(bufout++) = (pr2[bufin[4]] << 7 | + pr2[bufin[5]] << 2 | + pr2[bufin[6]] >> 3); + *(bufout++) = (pr2[bufin[6]] << 5 | + pr2[bufin[7]]); + bufin += 8; + count -= 8; + } + + if (count == 1) { + status = APR_EINCOMPLETE; + } + if (count >= 2) { + *(bufout++) = (pr2[bufin[0]] << 3 | + pr2[bufin[1]] >> 2); + } + if (count == 3) { + status = APR_EINCOMPLETE; + } + if (count >= 4) { + *(bufout++) = (pr2[bufin[1]] << 6 | + pr2[bufin[2]] << 1 | + pr2[bufin[3]] >> 4); + } + if (count >= 5) { + *(bufout++) = (pr2[bufin[3]] << 4 | + pr2[bufin[4]] >> 1); + } + if (count == 6) { + status = APR_EINCOMPLETE; + } + if (count >= 7) { + *(bufout++) = (pr2[bufin[4]] << 7 | + pr2[bufin[5]] << 2 | + pr2[bufin[6]] >> 3); + } + + dlen = bufout - dest; + } + } + + if (!src || !dest) { + dlen = (count / 8u) * 5u; + switch (count % 8) { + case 7: + dlen += 4; + break; + case 6: + status = APR_EINCOMPLETE; + case 5: + dlen += 3; + break; + case 4: + dlen += 2; + break; + case 3: + status = APR_EINCOMPLETE; + case 2: + dlen++; + break; + case 1: + status = APR_EINCOMPLETE; + break; + } + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(const char *)apr_pdecode_base32(apr_pool_t * p, const char *str, + apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_size_t size; + + if (!str) { + return NULL; + } + + switch (apr_decode_base32(NULL, str, slen, flags, &size)) { + case APR_SUCCESS:{ + void *cmd = apr_palloc(p, size); + if (cmd) { + apr_decode_base32(cmd, str, slen, flags, len); + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} + +APR_DECLARE(const unsigned char *)apr_pdecode_base32_binary(apr_pool_t * p, + const char *str, apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_size_t size; + + if (!str) { + return NULL; + } + + switch (apr_decode_base32_binary(NULL, str, slen, flags, &size)) { + case APR_SUCCESS:{ + unsigned char *cmd = apr_palloc(p, size + 1); + if (cmd) { + apr_decode_base32_binary(cmd, str, slen, flags, len); + cmd[size] = 0; + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} + +APR_DECLARE(apr_status_t) apr_encode_base16(char *dest, + const char *src, apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + + if (src && slen == APR_ENCODE_STRING) { + count = strlen(src); + } + else if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (dest) { + char *bufout = dest; + const char *base; + apr_size_t i; + + if ((flags & APR_ENCODE_LOWER)) { + base = base16lower; + } + else { + base = base16; + } + + for (i = 0; i < count; i++) { + if ((flags & APR_ENCODE_COLON) && i) { + *(bufout++) = ':'; + } + *(bufout++) = base[TO_ASCII(src[i]) >> 4]; + *(bufout++) = base[TO_ASCII(src[i]) & 0xf]; + } + + dlen = bufout - dest; + dest[dlen] = '\0'; + } + else { + dlen = count * 2u + 1u; + if (dlen <= count) { + status = APR_ENOSPC; + } + if ((flags & APR_ENCODE_COLON) && count > 1) { + apr_size_t more = dlen + count - 1; + if (more <= dlen) { + status = APR_ENOSPC; + } + dlen = more; + } + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(apr_status_t) apr_encode_base16_binary(char *dest, + const unsigned char *src, apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + + if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (dest) { + char *bufout = dest; + const char *base; + apr_size_t i; + + if ((flags & APR_ENCODE_LOWER)) { + base = base16lower; + } + else { + base = base16; + } + + for (i = 0; i < count; i++) { + if ((flags & APR_ENCODE_COLON) && i) { + *(bufout++) = ':'; + } + *(bufout++) = base[src[i] >> 4]; + *(bufout++) = base[src[i] & 0xf]; + } + + dlen = bufout - dest; + dest[dlen] = '\0'; + } + else { + dlen = count * 2u + 1u; + if (dlen <= count) { + status = APR_ENOSPC; + } + if ((flags & APR_ENCODE_COLON) && count > 1) { + apr_size_t more = dlen + count - 1; + if (more <= dlen) { + status = APR_ENOSPC; + } + dlen = more; + } + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(const char *)apr_pencode_base16(apr_pool_t * p, + const char *src, apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_size_t size; + + if (!src) { + return NULL; + } + + switch (apr_encode_base16(NULL, src, slen, flags, &size)) { + case APR_SUCCESS:{ + char *cmd = apr_palloc(p, size); + if (cmd) { + apr_encode_base16(cmd, src, slen, flags, len); + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} + +APR_DECLARE(const char *)apr_pencode_base16_binary(apr_pool_t * p, + const unsigned char *src, apr_ssize_t slen, int flags, + apr_size_t * len) +{ + apr_size_t size; + + if (!src) { + return NULL; + } + + switch (apr_encode_base16_binary(NULL, src, slen, flags, &size)) { + case APR_SUCCESS:{ + char *cmd = apr_palloc(p, size); + if (cmd) { + apr_encode_base16_binary(cmd, src, slen, flags, len); + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} + +APR_DECLARE(apr_status_t) apr_decode_base16(char *dest, + const char *src, apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + + if (src && slen == APR_ENCODE_STRING) { + count = strlen(src); + } + else if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (src) { + const unsigned char *bufin; + + bufin = (const unsigned char *)src; + while (count) { + if (pr2two[*bufin] >= 16 + && (!(flags & APR_ENCODE_COLON) + || pr2two[*bufin] != 32 /* ':' */)) { + if (!(flags & APR_ENCODE_RELAXED)) { + status = APR_BADCH; + } + break; + } + count--; + bufin++; + } + count = bufin - (const unsigned char *)src; + + if (dest) { + unsigned char *bufout; + + bufout = (unsigned char *)dest; + bufin = (const unsigned char *)src; + + while (count >= 2) { + if (pr2two[bufin[0]] == 32 /* ':' */) { + bufin += 1; + count -= 1; + } + else { + *(bufout++) = TO_NATIVE(pr2two[bufin[0]] << 4 | + pr2two[bufin[1]]); + bufin += 2; + count -= 2; + } + } + + if (count == 1) { + status = APR_EINCOMPLETE; + } + + dlen = bufout - (unsigned char *)dest; + dest[dlen] = '\0'; + } + } + + if (!src || !dest) { + if (flags & APR_ENCODE_COLON) { + if (count && (count + 1u) % 3u) { + status = APR_EINCOMPLETE; + } + count -= count / 3u; + } + if (count % 2u) { + status = APR_EINCOMPLETE; + } + dlen = count / 2u + 1u; + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(apr_status_t) apr_decode_base16_binary(unsigned char *dest, + const char *src, apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_status_t status = APR_SUCCESS; + apr_size_t count = slen, dlen = 0; + + if (src && slen == APR_ENCODE_STRING) { + count = strlen(src); + } + else if (slen < 0 || (dest && !src)) { + return (src) ? APR_EINVAL : APR_NOTFOUND; + } + + if (src) { + const unsigned char *bufin; + + bufin = (const unsigned char *)src; + while (count) { + if (pr2two[*bufin] >= 16 + && (!(flags & APR_ENCODE_COLON) + || pr2two[*bufin] != 32 /* ':' */)) { + if (!(flags & APR_ENCODE_RELAXED)) { + status = APR_BADCH; + } + break; + } + count--; + bufin++; + } + count = bufin - (const unsigned char *)src; + + if (dest) { + unsigned char *bufout; + + bufout = (unsigned char *)dest; + bufin = (const unsigned char *)src; + + while (count >= 2) { + if (pr2two[bufin[0]] == 32 /* ':' */) { + bufin += 1; + count -= 1; + } + else { + *(bufout++) = (pr2two[bufin[0]] << 4 | + pr2two[bufin[1]]); + bufin += 2; + count -= 2; + } + } + + if (count == 1) { + status = APR_EINCOMPLETE; + } + + dlen = bufout - (unsigned char *)dest; + } + } + + if (!src || !dest) { + if (flags & APR_ENCODE_COLON) { + if (count && (count + 1u) % 3u) { + status = APR_EINCOMPLETE; + } + count -= count / 3u; + } + if (count % 2u) { + status = APR_EINCOMPLETE; + } + dlen = count / 2u; + } + + if (len) { + *len = dlen; + } + return status; +} + +APR_DECLARE(const char *)apr_pdecode_base16(apr_pool_t * p, + const char *str, apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_size_t size; + + if (!str) { + return NULL; + } + + switch (apr_decode_base16(NULL, str, slen, flags, &size)) { + case APR_SUCCESS:{ + void *cmd = apr_palloc(p, size); + if (cmd) { + apr_decode_base16(cmd, str, slen, flags, len); + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} + +APR_DECLARE(const unsigned char *)apr_pdecode_base16_binary(apr_pool_t * p, + const char *str, apr_ssize_t slen, int flags, apr_size_t * len) +{ + apr_size_t size; + + if (!str) { + return NULL; + } + + switch (apr_decode_base16_binary(NULL, str, slen, flags, &size)) { + case APR_SUCCESS:{ + unsigned char *cmd = apr_palloc(p, size + 1); + if (cmd) { + apr_decode_base16_binary(cmd, str, slen, flags, len); + cmd[size] = 0; + } + return cmd; + } + default:{ + break; + } + } + + return NULL; +} |