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[base64] Allow base64_encode() to handle arbitrary data

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2010-05-28 01:17:22 +01:00
parent b9b59a585b
commit dfcce165a5
3 changed files with 16 additions and 14 deletions
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16
src/core/base64.c
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@@ -33,23 +33,24 @@ static const char base64[64] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
/**
* Base64-encode a string
* Base64-encode data
*
* @v raw Raw string
* @v raw Raw data
* @v len Length of raw data
* @v encoded Buffer for encoded string
*
* The buffer must be the correct length for the encoded string. Use
* something like
*
* char buf[ base64_encoded_len ( strlen ( raw ) ) + 1 ];
* char buf[ base64_encoded_len ( len ) + 1 ];
*
* (the +1 is for the terminating NUL) to provide a buffer of the
* correct size.
*/
void base64_encode ( const char *raw, char *encoded ) {
void base64_encode ( const uint8_t *raw, size_t len, char *encoded ) {
const uint8_t *raw_bytes = ( ( const uint8_t * ) raw );
uint8_t *encoded_bytes = ( ( uint8_t * ) encoded );
size_t raw_bit_len = ( 8 * strlen ( raw ) );
size_t raw_bit_len = ( 8 * len );
unsigned int bit;
unsigned int tmp;
@@ -63,6 +64,7 @@ void base64_encode ( const char *raw, char *encoded ) {
*(encoded_bytes++) = '=';
*(encoded_bytes++) = '\0';
DBG ( "Base64-encoded \"%s\" as \"%s\"\n", raw, encoded );
assert ( strlen ( encoded ) == base64_encoded_len ( strlen ( raw ) ) );
DBG ( "Base64-encoded to \"%s\":\n", encoded );
DBG_HDA ( 0, raw, len );
assert ( strlen ( encoded ) == base64_encoded_len ( len ) );
}