Hi Bruno,
--- On Thu, 5/20/10, Bruno Vetel <bruno.ve...@esas.fr> wrote:
> From: Bruno Vetel <bruno.ve...@esas.fr>
> Subject: Re: Base64 Decode Problem/Question
> To: openssl-users@openssl.org
> Date: Thursday, May 20, 2010, 1:43 PM
> Doug Kehn <rdk...@yahoo.com>
> writes:
>
> > Hi All,
> >
> Hi
>
> \n is not base64. Try with echo -n
>
I removed the '\n' and got the same result.
(Sorry for the double post. I had mailer problems and didn't think the first
attempt went out.)
>
> > I'm trying to decode a base64 encoded string.
> The problem I'm running in to is that BIO_read() always
> returns 0. BIO_should_retry() and BIO_should_read()
> also return 0 when BIO_read() returns 0. If the base64
> encoded string is shortened, BIO_read returns the decoded
> information. I'm using OpenSSL 0.9.8g 19 Oct 2007 on
> Ubuntu 9.04.
> >
> > Any suggestions on what I'm doing wrong?
> >
> > Thanks,
> > ...doug
> >
> > ---8<-----
> >
> > /*
> > * Compiled with: gcc -Wall -lssl
> > */
> >
> > #include <openssl/bio.h>
> > #include <openssl/evp.h>
> > #include <stdio.h>
> > #include <string.h>
> >
> > int main(int argc, char **argv)
> > {
> > #if 1
> > /*
> > * This does not work
> > */
> > char *message =
> "Tm8gaXMgdGhlIHRpbWUgZm9yIGFsbCBnb29kIG1lbiB0byBjb21lIHRvIHRoZSBhaWQgb2YgdGhlaXIgY291bnRyeS4NClRoZSBxdWljayBicm93biBmb3gganVtcGVkIG92ZXIgdGhlIGxhenkgZG9nJ3MgYmFjayAwMTIzNDU2Nzg5Lg==\n";
> > #endif
> > #if 0
> > /*
> > * This shortened version
> works
> > */
> > char *message =
> "Tm8gaXMgdGhlIHRpbWUgZm9yIGFsbCBnb29kIG1lbiB0by==\n";
> > #endif
> >
> > BIO *b64, *bio, *bmem;
> > char *buf;
> > int i = strlen(message) + 25;
> >
> > buf = malloc(i);
> > if (!buf) {
> > printf("malloc
> fail, %m\n");
> > return -1;
> > }
> >
> > bmem =
> BIO_new_mem_buf((void*)message, -1);
> > b64 = BIO_new(BIO_f_base64());
> > BIO_set_flags(bmem,
> BIO_FLAGS_BASE64_NO_NL);
> > bio = BIO_push(b64, bmem);
> > i = BIO_read(bio, (void*)buf, i);
> > buf[i] = '\0';
> > BIO_free_all(bio);
> >
> > printf("%s\n%s\n", message, buf);
> >
> > return 0;
> > }
> >
> >
> >
> ______________________________________________________________________
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>
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