I am a newbie to OpenSSL and wondering if
anyone can help me.
I am trying to use BIO_f_base64 but it does not
work for instance in the following code.
The second BIO_read, which is supposed to decode
the base64 encoded string, always returns nothing,
or "".
Am I doing something wrong?
Thanks a lot in advance.
Yoshi
#include <openssl/bio.h>
#include <openssl/evp.h>
int main()
{
BIO *bio, *b64, *mem, *bio2, *b64_2;
char msg[]= "Hello World!\n";
char buf[256];
char buf2[256];
int i;
memset(buf, 0, sizeof(buf));
memset(buf2, 0, sizeof(buf2));
mem = BIO_new(BIO_s_mem());
b64 = BIO_new(BIO_f_base64());
b64_2 = BIO_new(BIO_f_base64());
bio = BIO_push(b64, mem); //connect the b64 filer to the chaine
BIO_write(bio, msg, strlen(msg));//encoding writing to the chain
BIO_flush(bio);
i = BIO_read(mem, buf, sizeof(buf));//read the base64 encoded data
BIO_write(bio2, buf, i); //then write the data to buf
bio2 = BIO_push(b64_2, bio2);//connect the b64 filter for decoding
i = BIO_read(bio2, buf2, sizeof(buf2));
//decoding reading from the bio2 chain
BIO_flush(bio2);
printf("buf=%s\n",buf);
printf("buf2=%s\n",buf2);
BIO_free_all(bio);
BIO_free_all(bio2);
return 0;
}
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