Update to match the current state of crypto/rand, and remove MLINKS for

RAND_event and RAND_screen.

1 files changed, 6 insertions, 49 deletions

diff --git a/src/lib/libcrypto/doc/RAND_set_rand_method.pod b/src/lib/libcrypto/doc/RAND_set_rand_method.pod
index e5b780fad0..c02068bf76 100644
--- a/src/lib/libcrypto/doc/RAND_set_rand_method.pod
+++ b/src/lib/libcrypto/doc/RAND_set_rand_method.pod
@@ -16,58 +16,15 @@ RAND_set_rand_method, RAND_get_rand_method, RAND_SSLeay - select RAND method
 
 =head1 DESCRIPTION
 
-A B<RAND_METHOD> specifies the functions that OpenSSL uses for random number
-generation. By modifying the method, alternative implementations such as
-hardware RNGs may be used. IMPORTANT: See the NOTES section for important
-information about how these RAND API functions are affected by the use of
-B<ENGINE> API calls.
-
-Initially, the default RAND_METHOD is the OpenSSL internal implementation, as
-returned by RAND_SSLeay().
-
-RAND_set_default_method() makes B<meth> the method for PRNG use. B<NB>: This is
-true only whilst no ENGINE has been set as a default for RAND, so this function
-is no longer recommended.
-
-RAND_get_default_method() returns a pointer to the current RAND_METHOD.
-However, the meaningfulness of this result is dependent on whether the ENGINE
-API is being used, so this function is no longer recommended.
-
-=head1 THE RAND_METHOD STRUCTURE
-
- typedef struct rand_meth_st
- {
-        void (*seed)(const void *buf, int num);
-        int (*bytes)(unsigned char *buf, int num);
-        void (*cleanup)(void);
-        void (*add)(const void *buf, int num, int entropy);
-        int (*pseudorand)(unsigned char *buf, int num);
-        int (*status)(void);
- } RAND_METHOD;
-
-The components point to the implementation of RAND_seed(),
-RAND_bytes(), RAND_cleanup(), RAND_add(), RAND_pseudo_rand()
-and RAND_status().
-Each component may be NULL if the function is not implemented.
-
-=head1 RETURN VALUES
-
-RAND_set_rand_method() returns no value. RAND_get_rand_method() and
-RAND_SSLeay() return pointers to the respective methods.
-
-=head1 NOTES
-
-As of version 0.9.7, RAND_METHOD implementations are grouped together with other
-algorithmic APIs (eg. RSA_METHOD, EVP_CIPHER, etc) in B<ENGINE> modules. If a
-default ENGINE is specified for RAND functionality using an ENGINE API function,
-that will override any RAND defaults set using the RAND API (ie.
-RAND_set_rand_method()). For this reason, the ENGINE API is the recommended way
-to control default implementations for use in RAND and other cryptographic
-algorithms.
+These functions used to allow for the random number generator functions
+to be replaced by arbitrary code.
+
+They are kept for ABI compatibility but are no longer functional, and
+should not be used in new programs.
 
 =head1 SEE ALSO
 
-L<rand(3)|rand(3)>, L<engine(3)|engine(3)>
+L<rand(3)|rand(3)>
 
 =head1 HISTORY