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agent: Add some extra robustness to extract_private_key

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* agent/cvt-openpgp.c (extract_private_key): Add arg "arraysize".
Make sure that R_FLAGS and R_CURVE are set to NULL.
--

Given that extract_private_key is not file local it is good to have some
extra asserts to protect against future wrong use.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2015-01-27 10:22:47 +01:00
parent f6d3c6e526
commit 7959654377
3 changed files with 13 additions and 4 deletions
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3
agent/agent.h
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@ -501,7 +501,8 @@ int agent_handle_learn (ctrl_t ctrl, int send, void *assuan_context);
gpg_error_t
extract_private_key (gcry_sexp_t s_key, int req_private_key_data,
const char **r_algoname, int *r_npkey, int *r_nskey,
const char **r_format, gcry_mpi_t *mpi_array,
const char **r_format,
gcry_mpi_t *mpi_array, int arraysize,
gcry_sexp_t *r_curve, gcry_sexp_t *r_flags);
#endif /*AGENT_H*/