base85: encode_85() does not use the decode table

diff --git a/base85.c b/base85.c
index a9e97f89d9beb51ffd7c8f0be828b8c85358a1ef..f2b9a24d5ec9f470f77a3d2396d60c285108c8e9 100644 (file)
--- a/base85.c
+++ b/base85.c
@@ -37,7 +37,7 @@ static void prep_base85(void)
        }
 }
 
-int decode_85(char *dst, char *buffer, int len)
+int decode_85(char *dst, const char *buffer, int len)
 {
        prep_base85();
 
@@ -66,7 +66,7 @@ int decode_85(char *dst, char *buffer, int len)
                 */
                if (0x03030303 < acc ||
                    0xffffffff - de < (acc *= 85))
-                       error("invalid base85 sequence %.5s", buffer-5);
+                       return error("invalid base85 sequence %.5s", buffer-5);
                acc += de;
                say1(" %08x", acc);
 
@@ -82,10 +82,8 @@ int decode_85(char *dst, char *buffer, int len)
        return 0;
 }
 
-void encode_85(char *buf, unsigned char *data, int bytes)
+void encode_85(char *buf, const unsigned char *data, int bytes)
 {
-       prep_base85();
-
        say("encode 85");
        while (bytes) {
                unsigned acc = 0;
@@ -118,7 +116,7 @@ int main(int ac, char **av)
                int len = strlen(av[2]);
                encode_85(buf, av[2], len);
                if (len <= 26) len = len + 'A' - 1;
-               else len = len + 'a' - 26 + 1;
+               else len = len + 'a' - 26 - 1;
                printf("encoded: %c%s\n", len, buf);
                return 0;
        }