get_micalg (from mutt)
No One
Actions

Authored By

	• werner
	Feb 14 2018, 12:18 PM

Size

1 KB

Subscribers

None

get_micalg (from mutt)
View Options

	/* Find the "micalg" parameter from the last Gpgme operation on
	context CTX. It is expected that this operation was a sign
	operation. Return the algorithm name as a C string in buffer BUF
	which must have been allocated by the caller with size BUFLEN.
	Returns 0 on success or -1 in case of an error. The return string
	is truncted to BUFLEN - 1. */
	static int get_micalg (gpgme_ctx_t ctx, int use_smime, char *buf, size_t buflen)
	{
	gpgme_sign_result_t result = NULL;
	const char *algorithm_name = NULL;

	if (buflen < 5)
	return -1;

	*buf = 0;
	result = gpgme_op_sign_result (ctx);
	if (result && result->signatures)
	{
	algorithm_name = gpgme_hash_algo_name (result->signatures->hash_algo);
	if (algorithm_name)
	{
	if (use_smime)
	{
	/* convert GPGME raw hash name to RFC 2633 format */
	snprintf (buf, buflen, "%s", algorithm_name);
	ascii_strlower (buf);
	} else {
	/* convert GPGME raw hash name to RFC 3156 format */
	snprintf (buf, buflen, "pgp-%s", algorithm_name);
	ascii_strlower (buf + 4);
	}
	}
	}

	return *buf? 0:-1;
	}