sexp: Add function gcry_sexp_extract_param.

* src/gcrypt.h.in (_GCRY_GCC_ATTR_SENTINEL): New.
(gcry_sexp_extract_param): New.
* src/visibility.c (gcry_sexp_extract_param): New.
* src/visibility.h (gcry_sexp_extract_param): Add hack to detect
internal use.
* cipher/pubkey-util.c (_gcry_pk_util_extract_mpis): Move and split
into ...
* src/sexp.c (_gcry_sexp_vextract_param)
(_gcry_sexp_extract_param): this.  Change all callers.  Add support for buffer
descriptors and a path option/

* tests/tsexp.c (die, hex2buffer, hex2mpi, hex2mpiopa): New.
(cmp_mpihex, cmp_bufhex): New.
(check_extract_param): New.

Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/cipher/ecc-misc.c b/cipher/ecc-misc.c
index d89971f0..fa0bded5 100644
--- a/cipher/ecc-misc.c
+++ b/cipher/ecc-misc.c
@@ -55,6 +55,7 @@ _gcry_ecc_curve_copy (elliptic_curve_t E)
 
   R.model = E.model;
   R.dialect = E.dialect;
+  R.name = E.name;
   R.p = mpi_copy (E.p);
   R.a = mpi_copy (E.a);
   R.b = mpi_copy (E.b);