return (datalen + 47) / 48;
}
-void base64_encode_atom(unsigned char *data, int n, char *out)
-{
- static const char base64_chars[] =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
- unsigned word;
-
- word = data[0] << 16;
- if (n > 1)
- word |= data[1] << 8;
- if (n > 2)
- word |= data[2];
- out[0] = base64_chars[(word >> 18) & 0x3F];
- out[1] = base64_chars[(word >> 12) & 0x3F];
- if (n > 1)
- out[2] = base64_chars[(word >> 6) & 0x3F];
- else
- out[2] = '=';
- if (n > 2)
- out[3] = base64_chars[word & 0x3F];
- else
- out[3] = '=';
-}
-
-void base64_encode(FILE * fp, unsigned char *data, int datalen)
+void base64_encode(FILE * fp, unsigned char *data, int datalen, int cpl)
{
int linelen = 0;
char out[4];
- int n;
+ int n, i;
while (datalen > 0) {
- if (linelen >= 64) {
- linelen = 0;
- fputc('\n', fp);
- }
n = (datalen < 3 ? datalen : 3);
base64_encode_atom(data, n, out);
data += n;
datalen -= n;
- fwrite(out, 1, 4, fp);
- linelen += 4;
+ for (i = 0; i < 4; i++) {
+ if (linelen >= cpl) {
+ linelen = 0;
+ fputc('\n', fp);
+ }
+ fputc(out[i], fp);
+ linelen++;
+ }
}
fputc('\n', fp);
}
fprintf(fp, "Encryption: %s\n", cipherstr);
fprintf(fp, "Comment: %s\n", key->comment);
fprintf(fp, "Public-Lines: %d\n", base64_lines(pub_blob_len));
- base64_encode(fp, pub_blob, pub_blob_len);
+ base64_encode(fp, pub_blob, pub_blob_len, 64);
fprintf(fp, "Private-Lines: %d\n", base64_lines(priv_encrypted_len));
- base64_encode(fp, priv_blob_encrypted, priv_encrypted_len);
+ base64_encode(fp, priv_blob_encrypted, priv_encrypted_len, 64);
fprintf(fp, "Private-MAC: ");
for (i = 0; i < 20; i++)
fprintf(fp, "%02x", priv_mac[i]);