diff options
Diffstat (limited to 'ACE/ace/Codecs.cpp')
| -rw-r--r-- | ACE/ace/Codecs.cpp | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/ACE/ace/Codecs.cpp b/ACE/ace/Codecs.cpp deleted file mode 100644 index 505c5fc9916..00000000000 --- a/ACE/ace/Codecs.cpp +++ /dev/null @@ -1,234 +0,0 @@ -#include "ace/Codecs.h" -#include "ace/Log_Msg.h" -#include "ace/OS_Memory.h" -#include "ace/OS_NS_ctype.h" - -ACE_RCSID (ace, - Codecs, - "$Id$") - -namespace -{ - // Just in case ... -#undef alphabet -#undef pad -#undef max_columns - - // Symbols which form the Base64 alphabet (Defined as per RFC 2045) - ACE_Byte const alphabet[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; - - // The padding character used in the encoding - ACE_Byte const pad = '='; - - // Number of columns per line of encoded output (Can have a maximum - // value of 76). - int const max_columns = 72; -} - -ACE_BEGIN_VERSIONED_NAMESPACE_DECL - -bool ACE_Base64::init_ = false; - -ACE_Byte ACE_Base64::decoder_[256]; - -ACE_Byte ACE_Base64::member_[256]; - -ACE_Byte* -ACE_Base64::encode (const ACE_Byte* input, - const size_t input_len, - size_t* output_len, - bool is_chunked) -{ - if (!ACE_Base64::init_) - ACE_Base64::init(); - - if (!input) - return 0; - - ACE_Byte* result = 0; - - size_t length = ((input_len + 2) / 3) * 4; - size_t num_lines = length / max_columns + 1; - length += num_lines + 1; - ACE_NEW_RETURN (result, ACE_Byte[length], 0); - - int char_count = 0; - int bits = 0; - size_t pos = 0; - int cols = 0; - - for (size_t i = 0; i < input_len; ++i) - { - bits += input[i]; - ++char_count; - - if (char_count == 3) - { - result[pos++] = alphabet[bits >> 18]; - result[pos++] = alphabet[(bits >> 12) & 0x3f]; - result[pos++] = alphabet[(bits >> 6) & 0x3f]; - result[pos++] = alphabet[bits & 0x3f]; - cols += 4; - if (cols == max_columns) { - if (is_chunked) - result[pos++] = '\n'; - cols = 0; - } - bits = 0; - char_count = 0; - } - else - { - bits <<= 8; - } - } - - if (char_count != 0) - { - bits <<= (16 - (8 * char_count)); - result[pos++] = alphabet[bits >> 18]; - result[pos++] = alphabet[(bits >> 12) & 0x3f]; - cols += 2; - if (char_count == 1) - { - result[pos++] = pad; - result[pos++] = pad; - cols += 2; - } - else - { - result[pos++] = alphabet[(bits >> 6) & 0x3f]; - result[pos++] = pad; - cols += 2; - } - } - - if (cols > 0 && is_chunked) - result[pos++] = '\n'; - - result[pos] = 0; - *output_len = pos; - return result; -} - -size_t -ACE_Base64::length (const ACE_Byte* input) -{ - if (!ACE_Base64::init_) - ACE_Base64::init(); - - ACE_Byte* ptr = const_cast<ACE_Byte*> (input); - while (*ptr != 0 && - (member_[*(ptr)] == 1 || *ptr == pad - || ACE_OS::ace_isspace (*ptr))) - ++ptr; - size_t len = ptr - input; - len = ((len + 3) / 4) * 3 + 1 ; - return len; -} - -ACE_Byte* -ACE_Base64::decode (const ACE_Byte* input, size_t* output_len) -{ - if (!ACE_Base64::init_) - ACE_Base64::init(); - - if (!input) - return 0; - - size_t result_len = ACE_Base64::length (input); - ACE_Byte* result = 0; - ACE_NEW_RETURN (result, ACE_Byte[result_len], 0); - - ACE_Byte* ptr = const_cast<ACE_Byte*> (input); - while (*ptr != 0 && - (member_[*(ptr)] == 1 || *ptr == pad - || ACE_OS::ace_isspace (*ptr))) - ++ptr; - size_t input_len = ptr - input; - - int char_count = 0; - int bits = 0; - size_t pos = 0; - - size_t i = 0; - for (; i < input_len; ++i) - { - if (input[i] == pad) - break; - if (!ACE_Base64::member_[input[i]]) - continue; - bits += decoder_[input[i]]; - ++char_count; - - if (char_count == 4) - { - result[pos++] = static_cast<ACE_Byte> (bits >> 16); - result[pos++] = static_cast<ACE_Byte> ((bits >> 8) & 0xff); - result[pos++] = static_cast<ACE_Byte> (bits & 0xff); - bits = 0; - char_count = 0; - } - else - { - bits <<= 6; - } - } - - int errors = 0; - if ( i == input_len) - { - if (char_count) - { - ACE_ERROR ((LM_ERROR, - ACE_TEXT ("Decoding incomplete: atleast %d bits truncated\n"), - (4 - char_count) * 6)); - ++errors; - } - } - else - { - switch (char_count) - { - case 1: - ACE_ERROR ((LM_ERROR, - ACE_TEXT ("Decoding incomplete: atleast 2 bits missing\n"))); - ++errors; - break; - case 2: - result[pos++] = static_cast<ACE_Byte> (bits >> 10); - break; - case 3: - result[pos++] = static_cast<ACE_Byte> (bits >> 16); - result[pos++] = static_cast<ACE_Byte> ((bits >> 8) & 0xff); - break; - } - } - - if (errors) - { - delete[] result; - return 0; - } - result[pos] = 0; - *output_len = pos; - return result; -} - -void -ACE_Base64::init () -{ - if (!ACE_Base64::init_) - { - for (ACE_Byte i = 0; i < sizeof (alphabet); ++i) - { - ACE_Base64::decoder_[alphabet[i]] = i; - ACE_Base64::member_ [alphabet[i]] = 1; - } - ACE_Base64::init_ = true; - } - return; -} - -ACE_END_VERSIONED_NAMESPACE_DECL |