/* Set the engine info for the context CTX, protocol PROTO, to the
file name FILE_NAME and the home directory HOME_DIR. */
gpgme_error_t
gpgme_ctx_set_engine_info (gpgme_ctx_t ctx, gpgme_protocol_t proto,
const char *file_name, const char *home_dir)
{
gpgme_error_t err;
TRACE_BEG4 (DEBUG_CTX, "gpgme_ctx_set_engine_info", ctx,
"protocol=%i (%s), file_name=%s, home_dir=%s",
proto, gpgme_get_protocol_name (proto)
? gpgme_get_protocol_name (proto) : "unknown",
file_name ? file_name : "(default)",
home_dir ? home_dir : "(default)");
if (!ctx)
return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
/* Shut down the engine when changing engine info. */
if (ctx->engine)
{
TRACE_LOG1 ("releasing ctx->engine=%p", ctx->engine);
_gpgme_engine_release (ctx->engine);
ctx->engine = NULL;
}
err = _gpgme_set_engine_info (ctx->engine_info, proto,
file_name, home_dir);
return TRACE_ERR (err);
}
/* 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_op_vfs_mount (gpgme_ctx_t ctx, const char *container_file,
const char *mount_dir, unsigned int flags,
gpgme_error_t *op_err)
{
gpg_error_t err;
TRACE_BEG4 (DEBUG_CTX, "gpgme_op_vfs_mount", ctx,
"container=%s, mount_dir=%s, flags=0x%x, op_err=%p",
container_file, mount_dir, flags, op_err);
if (!ctx)
return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
err = _gpgme_op_vfs_mount (ctx, container_file, mount_dir, flags, op_err);
return TRACE_ERR (err);
}
/* Create a new data buffer filled with LENGTH bytes starting from
OFFSET within the file FNAME or stream STREAM (exactly one must be
non-zero). */
gpgme_error_t
gpgme_data_new_from_filepart (gpgme_data_t *r_dh, const char *fname,
FILE *stream, off_t offset, size_t length)
{
gpgme_error_t err;
char *buf = NULL;
int res;
TRACE_BEG4 (DEBUG_DATA, "gpgme_data_new_from_filepart", r_dh,
"file_name=%s, stream=%p, offset=%lli, length=%u",
fname, stream, offset, length);
if (stream && fname)
return TRACE_ERR (gpg_error (GPG_ERR_INV_VALUE));
if (fname)
stream = fopen (fname, "rb");
if (!stream)
return TRACE_ERR (gpg_error_from_errno (errno));
#ifdef HAVE_FSEEKO
res = fseeko (stream, offset, SEEK_SET);
#else
/* FIXME: Check for overflow, or at least bail at compilation. */
res = fseek (stream, offset, SEEK_SET);
#endif
if (res)
{
int saved_errno = errno;
if (fname)
fclose (stream);
return TRACE_ERR (gpg_error_from_errno (saved_errno));
}
buf = malloc (length);
if (!buf)
{
int saved_errno = errno;
if (fname)
fclose (stream);
return TRACE_ERR (gpg_error_from_errno (saved_errno));
}
while (fread (buf, length, 1, stream) < 1
&& ferror (stream) && errno == EINTR);
if (ferror (stream))
{
int saved_errno = errno;
if (buf)
free (buf);
if (fname)
fclose (stream);
return TRACE_ERR (gpg_error_from_errno (saved_errno));
}
if (fname)
fclose (stream);
err = gpgme_data_new (r_dh);
if (err)
{
if (buf)
free (buf);
return err;
}
(*r_dh)->data.mem.buffer = buf;
(*r_dh)->data.mem.size = length;
(*r_dh)->data.mem.length = length;
return TRACE_SUC1 ("r_dh=%p", *r_dh);
}