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#include "BaseN.h"
#define S_BASE_16_LAST 15
#define S_BASE_32_LAST 31
#define S_BASE_64_LAST 63
#define padding_mark =
#if 0
TEMPLATE FOR THE ASCII TABLE REVERSE
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*0*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*1*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*2*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*3*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*4*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*5*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*6*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*7*/
LEGEND:
0..127 VALID NUMBER.
-1 INVALID
-2 IGNORE
-3 PADDING MARK
Padding mark is only not used in Base16, so it will generate an error.
#endif
/* ****************************************************************************
********************************* BASE 16 ************************************
**************************************************************************** */
S_UNUSED
static const schar
S_BASE_16_ALPHABET[16] = {
'0','1','2','3','4','5','6','7','8','9',
'A','B','C','D','E','F'
};
S_UNUSED
static const sbyte
S_BASE_16_REVERSE[128] = {
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*0*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*1*/
-2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*2*/
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, /*3*/
-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*4*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*5*/
-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*6*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*7*/
};
#define base_16_concat(first,last) ((last) | (first << 4))
#define base_16_mask_shift(byte) ((byte & 0xf0) >> 4)
#define base_16_mask(byte) (byte & 0xf)
schar *
s_base_16_enc (const sbyte * input_data,
size_t in_len,
size_t * out_len) {
*out_len = (round_up((in_len * 2) + 1, 2)) + 1;
schar * ret_val = s_malloc ((*out_len));
s_dbg_print ("in len: %zu out_len: %zu\n", in_len, *out_len);
ret_val[(*out_len) - 1] = 0x0;
size_t pos = 0;
for (sint i = 0; i <= in_len; i++) {
subyte m_byte = (subyte)input_data[i];
ret_val [pos] = S_BASE_16_ALPHABET[base_16_mask_shift(m_byte)];
ret_val [pos+1] = S_BASE_16_ALPHABET[base_16_mask(m_byte)];
pos += 2;
}
return ret_val;
}
/* TODO */
sbyte *
s_base_16_dec (const schar * base16_str,
size_t in_len,
size_t * out_len) {
schar * ptr = (char *)base16_str;
*out_len = ((in_len / 2) + 1);
schar * endptr = ptr + in_len;
sbyte * ret_val = s_malloc (sizeof(sbyte) * *out_len);
size_t pos = 0;
while (ptr != endptr) {
if (S_BASE_16_REVERSE[(size_t)*ptr] < 0) {
s_err_print ("Unclean Base16 data.\n");
}
sbyte first = *ptr;
sbyte second = *ptr+1;
sbyte concat = base_16_concat(S_BASE_16_REVERSE[first],
S_BASE_16_REVERSE[second]);
s_print ("%02x (%d), %02x (%d), %02x (%d)\n",first ,first, second, second, concat, concat);
ret_val[pos] = concat;
ptr+=2;
}
return ret_val;
}
/* ****************************************************************************
********************************* BASE 32 ************************************
**************************************************************************** */
S_UNUSED
static const schar
S_BASE_32_ALPHABET[32] = {
/* 0 1 2 3 4 5 6 7 8 9 */
'A','B','C','D','E','F','G','H','I','J',
'K','L','M','N','O','P','Q','R','S','T',
'U','V','W','X','Y','Z',
'2','3','4','5',
'6','7'
};
S_UNUSED
static const sbyte
S_BASE_32_REVERSE[128] = {
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*0*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*1*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*2*/
-1, -1, 27, 28, 29, 30, 31, 32, -1, -1, -1, -1, -1, -3, -1, -1, /*3*/
-1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /*4*/
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, -1, -1, -1, -1, -1, /*5*/
-1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /*6*/
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, -1, -1, -1, -1, -1, /*7*/
};
/* TODO */
schar *
s_base_32_enc (const sbyte * input_data,
size_t in_len,
size_t * out_len);
/* TODO */
sbyte *
s_base_32_dec (const schar * base32_str,
size_t in_len,
size_t * out_len);
/* * BASE 32 HEX * */
S_UNUSED
static const schar
S_BASE_32_HEX_ALPHABET[32] = {
/* 0 1 2 3 4 5 6 7 8 9 */
'0','1','2','3','4','5','6','7','8','9',
'A','B','C','D','E','F','G','H','I','J',
'K','L','M','N','O','P','Q','R','S','T',
'U','V'
};
S_UNUSED
static const sbyte
S_BASE_32_HEX_REVERSE[128] = {
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*0*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*1*/
-2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*2*/
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, /*3*/
-1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, /*4*/
25, 26, 27, 28, 29, 30, 31, 31, -1, -1, -1, -1, -1, -1, -1, -1, /*5*/
-1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, /*7*/
25, 26, 27, 28, 29, 30, 31, 31, -1, -1, -1, -1, -1, -1, -1, -1, /*8*/
};
/* TODO */
schar *
s_base_32_hex_enc (const sbyte * input_data,
size_t in_len,
size_t * out_len);
/* TODO */
sbyte *
s_base_32_hex_dec (const schar * base32_str,
size_t in_len,
size_t * out_len);
/* ****************************************************************************
********************************* BASE 64 ************************************
**************************************************************************** */
S_UNUSED
static const schar
S_BASE_64_ALPHABET[64] = {
/* 0 1 2 3 4 5 6 7 8 9 */
'A','B','C','D','E','F','G','H','I','J',
'K','L','M','N','O','P','Q','R','S','T',
'U','V','W','X','Y','Z',
'a','b','c','d',
'e','f','g','h','i','j','k','l','m','n',
'o','p','q','r','s','t','u','v','w','x',
'y','z',
'0','1','2','3','4','5','6','7',
'8','9',
'+','/'
};
/* TODO */
S_UNUSED
static const sbyte
S_BASE_64_REVERSE[128] = {
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*0*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*1*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 63, -1, -1, -1, 64, /*2*/
53, 54, 55, 56, 57, 58, 59, 60, 61, 62, -1, -1, -1, -3, -1, -1, /*3*/
-1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /*4*/
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, -1, -1, -1, -1, -1, /*5*/
-1, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, /*6*/
42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, -1, -1, -1, -1, -1, /*7*/
};
schar *
s_base_64_enc (const sbyte * input_data,
size_t in_len,
size_t * out_len);
sbyte *
s_base_64_dec (const schar * base64_str,
size_t in_len,
size_t * out_len);
/* * BASE 64 SAFE * */
S_UNUSED
static const schar
S_BASE_64_SAFE_ALPHABET[64] = {
/* 0 1 2 3 4 5 6 7 8 9 */
'A','B','C','D','E','F','G','H','I','J',
'K','L','M','N','O','P','Q','R','S','T',
'U','V','W','X','Y','Z',
'a','b','c','d',
'e','f','g','h','i','j','k','l','m','n',
'o','p','q','r','s','t','u','v','w','x',
'y','z',
'0','1','2','3','4','5','6','7',
'8','9',
'-','_'
};
/* TODO */
S_UNUSED
static const sbyte
S_BASE_64_SAFE_REVERSE[128] = {
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*0*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*1*/
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 63, -1, -1, /*2*/
53, 54, 55, 56, 57, 58, 59, 60, 61, 62, -1, -1, -1, -3, -1, -1, /*3*/
-1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /*4*/
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, -1, -1, -1, -1, 64, /*5*/
-1, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, /*6*/
42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, -1, -1, -1, -1, -1, /*7*/
};
/* TODO */
schar *
s_base_64_safe_enc (const sbyte * input_data,
size_t in_len,
size_t * out_len);
/* TODO */
sbyte *
s_base_64_safe_dec (const schar * base64_str,
size_t in_len,
size_t * out_len);
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