diff options
Diffstat (limited to 'src/base64.c')
| -rw-r--r-- | src/base64.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/src/base64.c b/src/base64.c index 884d0a48..c9e958c2 100644 --- a/src/base64.c +++ b/src/base64.c @@ -14,8 +14,6 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ -#include "base64.h" - #include "serd_internal.h" #include "string_utils.h" @@ -60,29 +58,36 @@ encode_chunk(uint8_t out[4], const uint8_t in[3], size_t n_in) } size_t -serd_base64_get_length(const size_t size, const bool wrap_lines) +serd_base64_encoded_length(const size_t size, const bool wrap_lines) { return (size + 2) / 3 * 4 + (wrap_lines * ((size - 1) / 57)); } +size_t +serd_base64_decoded_size(const size_t len) +{ + return (len * 3) / 4 + 2; +} + bool -serd_base64_encode(uint8_t* const str, +serd_base64_encode(char* const str, const void* const buf, const size_t size, const bool wrap_lines) { - bool has_newline = false; + uint8_t* const out = (uint8_t*)str; + bool has_newline = false; for (size_t i = 0, j = 0; i < size; i += 3, j += 4) { uint8_t in[4] = { 0, 0, 0, 0 }; size_t n_in = MIN(3, size - i); memcpy(in, (const uint8_t*)buf + i, n_in); if (wrap_lines && i > 0 && (i % 57) == 0) { - str[j++] = '\n'; + out[j++] = '\n'; has_newline = true; } - encode_chunk(str + j, in, n_in); + encode_chunk(out + j, in, n_in); } return has_newline; @@ -104,13 +109,12 @@ decode_chunk(const uint8_t in[4], uint8_t out[3]) return 1 + (in[2] != '=') + ((in[2] != '=') && (in[3] != '=')); } -void* -serd_base64_decode(const char* str, size_t len, size_t* size) +SerdStatus +serd_base64_decode(void* buf, size_t* size, const char* str, size_t len) { const uint8_t* const ustr = (const uint8_t*)str; - void* buf = malloc((len * 3) / 4 + 2); - *size = 0; + *size = 0; for (size_t i = 0, j = 0; i < len; j += 3) { uint8_t in[] = "===="; size_t n_in = 0; @@ -122,5 +126,6 @@ serd_base64_decode(const char* str, size_t len, size_t* size) *size += decode_chunk(in, (uint8_t*)buf + j); } } - return buf; + + return SERD_SUCCESS; } |