libbb: split decode_base64 off read_base64

function                                             old     new   delta
decode_base64                                          -     182    +182
read_base64                                          378     255    -123
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 182/-123)           Total: 59 bytes

Signed-off-by: Leonid Lisovskiy <lly.dev@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/libbb.h b/include/libbb.h
index d248781c3..791cdd94e 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1591,7 +1591,8 @@ enum {
         /* Sign-extends to a value which never matches fgetc result: */
         BASE64_FLAG_NO_STOP_CHAR = 0x80,
 };
-void FAST_FUNC read_base64(FILE *src_stream, FILE *dst_stream, int flags);
+const char *decode_base64(char **pp_dst, const char *src) FAST_FUNC;
+void read_base64(FILE *src_stream, FILE *dst_stream, int flags) FAST_FUNC;
 
 typedef struct md5_ctx_t {
         uint8_t wbuffer[64]; /* always correctly aligned for uint64_t */