Make the OSSL_PARAM manual conform with man-pages(7)

Details from man-pages(7) that are used:

    Formatting conventions for manual pages describing functions

        ...
        Variable names should, like argument names, be specified in italics.
        ...

    Formatting conventions (general)

        ...
        Special macros, which are usually in uppercase, are in bold.
        Exception: don't boldface NULL.
        ...

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13848)

1 files changed, 55 insertions, 54 deletions

diff --git a/doc/man3/OSSL_PARAM_int.pod b/doc/man3/OSSL_PARAM_int.pod
index 3d124d7442..ebb5e8ecb8 100644
--- a/doc/man3/OSSL_PARAM_int.pod
+++ b/doc/man3/OSSL_PARAM_int.pod
@@ -107,7 +107,7 @@ OSSL_PARAM_UNMODIFIED, OSSL_PARAM_modified, OSSL_PARAM_set_all_unmodified
 =head1 DESCRIPTION
 
 A collection of utility functions that simplify and add type safety to the
-OSSL_PARAM arrays.  The following B<TYPE> names are supported:
+OSSL_PARAM arrays.  The following B<I<TYPE>> names are supported:
 
 =over 1
 
@@ -159,124 +159,125 @@ unsigned long int (ulong)
 
 OSSL_PARAM_TYPE() are a series of macros designed to assist initialising an
 array of OSSL_PARAM structures.
-Each of these macros defines a parameter of the specified B<TYPE> with the
-provided B<key> and parameter variable B<address>.
+Each of these macros defines a parameter of the specified B<I<TYPE>> with the
+provided I<key> and parameter variable I<address>.
 
 OSSL_PARAM_utf8_string(), OSSL_PARAM_octet_string(), OSSL_PARAM_utf8_ptr(),
 OSSL_PARAM_octet_ptr(), OSSL_PARAM_BN() are macros that provide support
 for defining UTF8 strings, OCTET strings and big numbers.
-A parameter with name B<key> is defined.
-The storage for this parameter is at B<address> and is of B<size> bytes.
+A parameter with name I<key> is defined.
+The storage for this parameter is at I<address> and is of I<size> bytes.
 
 OSSL_PARAM_END provides an end of parameter list marker.
 This should terminate all OSSL_PARAM arrays.
 
 OSSL_PARAM_construct_TYPE() are a series of functions that create OSSL_PARAM
 records dynamically.
-A parameter with name B<key> is created.
-The parameter will use storage pointed to by B<buf> and return size of B<ret>.
+A parameter with name I<key> is created.
+The parameter will use storage pointed to by I<buf> and return size of I<ret>.
 
 OSSL_PARAM_construct_BN() is a function that constructs a large integer
 OSSL_PARAM structure.
-A parameter with name B<key>, storage B<buf>, size B<bsize> and return
-size B<rsize> is created.
+A parameter with name I<key>, storage I<buf>, size I<bsize> and return
+size I<rsize> is created.
 
 OSSL_PARAM_construct_utf8_string() is a function that constructs a UTF8
 string OSSL_PARAM structure.
-A parameter with name B<key>, storage B<buf> and size B<bsize> is created.
-If B<bsize> is zero, the string length is determined using strlen(3) + 1 for the
+A parameter with name I<key>, storage I<buf> and size I<bsize> is created.
+If I<bsize> is zero, the string length is determined using strlen(3) + 1 for the
 null termination byte.
-Generally pass zero for B<bsize> instead of calling strlen(3) yourself.
+Generally pass zero for I<bsize> instead of calling strlen(3) yourself.
 
 OSSL_PARAM_construct_octet_string() is a function that constructs an OCTET
 string OSSL_PARAM structure.
-A parameter with name B<key>, storage B<buf> and size B<bsize> is created.
+A parameter with name I<key>, storage I<buf> and size I<bsize> is created.
 
 OSSL_PARAM_construct_utf8_ptr() is a function that constructs a UTF string
 pointer OSSL_PARAM structure.
-A parameter with name B<key>, storage pointer B<*buf> and size B<bsize>
+A parameter with name I<key>, storage pointer I<*buf> and size I<bsize>
 is created.
 
 OSSL_PARAM_construct_octet_ptr() is a function that constructs an OCTET string
 pointer OSSL_PARAM structure.
-A parameter with name B<key>, storage pointer B<*buf> and size B<bsize>
+A parameter with name I<key>, storage pointer I<*buf> and size I<bsize>
 is created.
 
 OSSL_PARAM_construct_end() is a function that constructs the terminating
 OSSL_PARAM structure.
 
-OSSL_PARAM_locate() is a function that searches an B<array> of parameters for
-the one matching the B<key> name.
+OSSL_PARAM_locate() is a function that searches an I<array> of parameters for
+the one matching the I<key> name.
 
 OSSL_PARAM_locate_const() behaves exactly like OSSL_PARAM_locate() except for
-the presence of I<const> for the B<array> argument and its return value.
+the presence of I<const> for the I<array> argument and its return value.
 
-OSSL_PARAM_get_TYPE() retrieves a value of type B<TYPE> from the parameter B<p>.
-The value is copied to the address B<val>.
+OSSL_PARAM_get_TYPE() retrieves a value of type B<I<TYPE>> from the parameter
+I<p>.
+The value is copied to the address I<val>.
 Type coercion takes place as discussed in the NOTES section.
 
-OSSL_PARAM_set_TYPE() stores a value B<val> of type B<TYPE> into the parameter
-B<p>.
+OSSL_PARAM_set_TYPE() stores a value I<val> of type B<I<TYPE>> into the
+parameter I<p>.
 If the parameter's I<data> field is NULL, then only its I<return_size> field
 will be assigned the size the parameter's I<data> buffer should have.
 Type coercion takes place as discussed in the NOTES section.
 
-OSSL_PARAM_get_BN() retrieves a BIGNUM from the parameter pointed to by B<p>.
-The BIGNUM referenced by B<val> is updated and is allocated if B<*val> is
-B<NULL>.
+OSSL_PARAM_get_BN() retrieves a BIGNUM from the parameter pointed to by I<p>.
+The BIGNUM referenced by I<val> is updated and is allocated if I<*val> is
+NULL.
 
-OSSL_PARAM_set_BN() stores the BIGNUM B<val> into the parameter B<p>.
+OSSL_PARAM_set_BN() stores the BIGNUM I<val> into the parameter I<p>.
 If the parameter's I<data> field is NULL, then only its I<return_size> field
 will be assigned the size the parameter's I<data> buffer should have.
 
 OSSL_PARAM_get_utf8_string() retrieves a UTF8 string from the parameter
-pointed to by B<p>.
-The string is either stored into B<*val> with a length limit of B<max_len> or,
-in the case when B<*val> is B<NULL>, memory is allocated for the string and
-B<max_len> is ignored.
+pointed to by I<p>.
+The string is either stored into I<*val> with a length limit of I<max_len> or,
+in the case when I<*val> is NULL, memory is allocated for the string and
+I<max_len> is ignored.
 If memory is allocated by this function, it must be freed by the caller.
 
 OSSL_PARAM_set_utf8_string() sets a UTF8 string from the parameter pointed to
-by B<p> to the value referenced by B<val>.
+by I<p> to the value referenced by I<val>.
 If the parameter's I<data> field is NULL, then only its I<return_size> field
 will be assigned the size the parameter's I<data> buffer should have.
 
 OSSL_PARAM_get_octet_string() retrieves an OCTET string from the parameter
-pointed to by B<p>.
-The OCTETs are either stored into B<*val> with a length limit of B<max_len> or,
-in the case when B<*val> is B<NULL>, memory is allocated and
-B<max_len> is ignored. B<*used_len> is populated with the number of OCTETs
-stored. If B<val> is NULL then the OCTETS are not stored, but B<*used_len> is
+pointed to by I<p>.
+The OCTETs are either stored into I<*val> with a length limit of I<max_len> or,
+in the case when I<*val> is NULL, memory is allocated and
+I<max_len> is ignored. I<*used_len> is populated with the number of OCTETs
+stored. If I<val> is NULL then the OCTETS are not stored, but I<*used_len> is
 still populated.
 If memory is allocated by this function, it must be freed by the caller.
 
 OSSL_PARAM_set_octet_string() sets an OCTET string from the parameter
-pointed to by B<p> to the value referenced by B<val>.
+pointed to by I<p> to the value referenced by I<val>.
 If the parameter's I<data> field is NULL, then only its I<return_size> field
 will be assigned the size the parameter's I<data> buffer should have.
 
 OSSL_PARAM_get_utf8_ptr() retrieves the UTF8 string pointer from the parameter
-referenced by B<p> and stores it in B<*val>.
+referenced by I<p> and stores it in I<*val>.
 
 OSSL_PARAM_set_utf8_ptr() sets the UTF8 string pointer in the parameter
-referenced by B<p> to the values B<val>.
+referenced by I<p> to the values I<val>.
 
 OSSL_PARAM_get_octet_ptr() retrieves the OCTET string pointer from the parameter
-referenced by B<p> and stores it in B<*val>.
-The length of the OCTET string is stored in B<*used_len>.
+referenced by I<p> and stores it in I<*val>.
+The length of the OCTET string is stored in I<*used_len>.
 
 OSSL_PARAM_set_octet_ptr() sets the OCTET string pointer in the parameter
-referenced by B<p> to the values B<val>.
-The length of the OCTET string is provided by B<used_len>.
+referenced by I<p> to the values I<val>.
+The length of the OCTET string is provided by I<used_len>.
 
 OSSL_PARAM_get_utf8_string_ptr() retrieves the pointer to a UTF8 string from
-the parameter pointed to by B<p>, and stores that pointer in B<*val>.
+the parameter pointed to by I<p>, and stores that pointer in I<*val>.
 This is different from OSSL_PARAM_get_utf8_string(), which copies the
 string.
 
 OSSL_PARAM_get_octet_string_ptr() retrieves the pointer to a octet string
-from the parameter pointed to by B<p>, and stores that pointer in B<*val>,
-along with the string's length in B<*used_len>.
+from the parameter pointed to by I<p>, and stores that pointer in I<*val>,
+along with the string's length in I<*used_len>.
 This is different from OSSL_PARAM_get_octet_string(), which copies the
 string.
 
@@ -285,11 +286,11 @@ creation, via either the macros or construct calls, the I<return_size> field
 is set to this.  If the parameter is set using the calls defined herein, the
 I<return_size> field is changed.
 
-OSSL_PARAM_modified() queries if the parameter B<param> has been set or not
+OSSL_PARAM_modified() queries if the parameter I<param> has been set or not
 using the calls defined herein.
 
 OSSL_PARAM_set_all_unmodified() resets the unused indicator for all parameters
-in the array B<params>.
+in the array I<params>.
 
 =head1 RETURN VALUES
 
@@ -299,12 +300,12 @@ OSSL_PARAM_construct_utf8_ptr() and OSSL_PARAM_construct_octet_ptr()
 return a populated OSSL_PARAM structure.
 
 OSSL_PARAM_locate() and OSSL_PARAM_locate_const() return a pointer to
-the matching OSSL_PARAM object.  They return B<NULL> on error or when
-no object matching B<key> exists in the B<array>.
+the matching OSSL_PARAM object.  They return NULL on error or when
+no object matching I<key> exists in the I<array>.
 
-OSSL_PARAM_modified() returns B<1> if the parameter was set and B<0> otherwise.
+OSSL_PARAM_modified() returns 1 if the parameter was set and 0 otherwise.
 
-All other functions return B<1> on success and B<0> on failure.
+All other functions return 1 on success and 0 on failure.
 
 =head1 NOTES
 
@@ -314,9 +315,9 @@ Apart from that, the functions must be used appropriately for the
 expected type of the parameter.
 
 For OSSL_PARAM_construct_utf8_ptr() and OSSL_PARAM_consstruct_octet_ptr(),
-B<bsize> is not relevant if the purpose is to send the B<OSSL_PARAM> array
+I<bsize> is not relevant if the purpose is to send the B<OSSL_PARAM> array
 to a I<responder>, i.e. to get parameter data back.
-In that case, B<bsize> can safely be given zero.
+In that case, I<bsize> can safely be given zero.
 See L<OSSL_PARAM(3)/DESCRIPTION> for further information on the
 possible purposes.