/* Create a new data buffer filled with SIZE bytes starting from
BUFFER. If COPY is zero, copying is delayed until necessary, and
the data is taken from the original location when needed. */
gpgme_error_t
gpgme_data_new_from_mem (gpgme_data_t *r_dh, const char *buffer,
size_t size, int copy)
{
gpgme_error_t err;
TRACE_BEG4 (DEBUG_DATA, "gpgme_data_new_from_mem", r_dh,
"buffer=%p, size=%u, copy=%i (%s)", buffer, size,
copy, copy ? "yes" : "no");
err = _gpgme_data_new (r_dh, &mem_cbs);
if (err)
return TRACE_ERR (err);
if (copy)
{
char *bufcpy = malloc (size);
if (!bufcpy)
{
int saved_err = gpg_error_from_syserror ();
_gpgme_data_release (*r_dh);
return TRACE_ERR (saved_err);
}
memcpy (bufcpy, buffer, size);
(*r_dh)->data.mem.buffer = bufcpy;
}
else
(*r_dh)->data.mem.orig_buffer = buffer;
(*r_dh)->data.mem.size = size;
(*r_dh)->data.mem.length = size;
return TRACE_SUC1 ("dh=%p", *r_dh);
}
gpgme_error_t
gpgme_data_new_from_stream (gpgme_data_t *dh, FILE *stream)
{
gpgme_error_t err = _gpgme_data_new (dh, &stream_cbs);
if (err)
return err;
(*dh)->data.stream = stream;
return 0;
}
gpgme_error_t
gpgme_data_new_from_cbs (gpgme_data_t *dh, gpgme_data_cbs_t cbs, void *handle)
{
gpgme_error_t err = _gpgme_data_new (dh, &user_cbs);
if (err)
return err;
(*dh)->data.user.cbs = cbs;
(*dh)->data.user.handle = handle;
return 0;
}
/* Create a new data buffer which retrieves the data from the callback
function READ_CB. */
gpgme_error_t
gpgme_data_new_with_read_cb (gpgme_data_t *dh,
int (*read_cb) (void *, char *, size_t, size_t *),
void *read_cb_value)
{
gpgme_error_t err = _gpgme_data_new (dh, &old_user_cbs);
if (err)
return err;
(*dh)->data.old_user.cb = read_cb;
(*dh)->data.old_user.handle = read_cb_value;
return 0;
}
gpgme_error_t
gpgme_data_new_from_fd (gpgme_data_t *r_dh, int fd)
{
gpgme_error_t err;
TRACE_BEG1 (DEBUG_DATA, "gpgme_data_new_from_fd", r_dh, "fd=0x%x", fd);
err = _gpgme_data_new (r_dh, &fd_cbs);
if (err)
return TRACE_ERR (err);
(*r_dh)->data.fd = fd;
return TRACE_SUC1 ("dh=%p", *r_dh);
}
/* Create a new data buffer and return it in R_DH. */
gpgme_error_t
gpgme_data_new (gpgme_data_t *r_dh)
{
gpgme_error_t err;
TRACE_BEG (DEBUG_DATA, "gpgme_data_new", r_dh);
err = _gpgme_data_new (r_dh, &mem_cbs);
if (err)
return TRACE_ERR (err);
return TRACE_SUC1 ("dh=%p", *r_dh);
}
gpgme_error_t
gpgme_data_new_from_cbs (gpgme_data_t *r_dh, gpgme_data_cbs_t cbs, void *handle)
{
gpgme_error_t err;
TRACE_BEG1 (DEBUG_DATA, "gpgme_data_new_from_cbs", r_dh, "handle=%p", handle);
err = _gpgme_data_new (r_dh, &user_cbs);
if (err)
return TRACE_ERR (err);
(*r_dh)->data.user.cbs = cbs;
(*r_dh)->data.user.handle = handle;
return TRACE_SUC1 ("dh=%p", *r_dh);
}
/* Create a new data buffer which retrieves the data from the callback
function READ_CB. */
gpgme_error_t
gpgme_data_new_with_read_cb (gpgme_data_t *r_dh,
int (*read_cb) (void *, char *, size_t, size_t *),
void *read_cb_value)
{
gpgme_error_t err;
TRACE_BEG2 (DEBUG_DATA, "gpgme_data_new_with_read_cb", r_dh,
"read_cb=%p/%p", read_cb, read_cb_value);
err = _gpgme_data_new (r_dh, &old_user_cbs);
if (err)
return TRACE_ERR (err);
(*r_dh)->data.old_user.cb = read_cb;
(*r_dh)->data.old_user.handle = read_cb_value;
return TRACE_ERR (0);
}
