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体验新版 GitCode,发现更多精彩内容 >>
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8c4b69d3
编写于
10月 09, 2002
作者:
D
Dr. Stephen Henson
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doc/crypto/PKCS12_create.pod
doc/crypto/PKCS12_create.pod
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doc/crypto/X509_NAME_get_index_by_NID.pod
doc/crypto/X509_NAME_get_index_by_NID.pod
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doc/crypto/PKCS12_create.pod
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@@ -51,6 +51,10 @@ encryption.
Some additional functionality was added to PKCS12_create() in OpenSSL
0.9.8. These extensions are detailed below.
If a certificate contains an B<alias> or B<keyid> then this will be
used for the corresponding B<friendlyName> or B<localKeyID> in the
PKCS12 structure.
Either B<pkey>, B<cert> or both can be B<NULL> to indicate that no key or
certficate is required. In previous versions both hasves to be present or
a fatal error is returned.
...
...
doc/crypto/X509_NAME_get_index_by_NID.pod
0 → 100644
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8c4b69d3
=pod
X509_NAME_get_index_by_NID, X509_NAME_get_index_by_OBJ, X509_NAME_get_entry,
X509_NAME_entry_count, X509_NAME_get_text_by_NID, X509_NAME_get_text_by_OBJ -
X509_NAME lookup and enumeration functions
=head1 NAME
=head1 SYNOPSIS
int X509_NAME_get_index_by_NID(X509_NAME *name,int nid,int lastpos);
int X509_NAME_get_index_by_OBJ(X509_NAME *name,ASN1_OBJECT *obj, int lastpos);
int X509_NAME_entry_count(X509_NAME *name);
X509_NAME_ENTRY *X509_NAME_get_entry(X509_NAME *name, int loc);
int X509_NAME_get_text_by_NID(X509_NAME *name, int nid, char *buf,int len);
int X509_NAME_get_text_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, char *buf,int len);
=head1 DESCRIPTION
These functions allow an B<X509_NAME> structure to be examined. The
B<X509_NAME> structure is the same as the B<Name> type defined in
RFC2459 (and elsewhere) and used for example in certificate subject
and issuer names.
X509_NAME_get_index_by_NID() and X509_NAME_get_index_by_OBJ() retrieve
the next index matching B<nid> or B<obj> after B<lastpos>. B<lastpos>
should initially be set to -1. If there are no more entries -1 is returned.
X509_NAME_entry_count() returns the total number of entries in B<name>.
X509_NAME_get_entry() retrieves the B<X509_NAME_ENTRY> from B<name>
corresponding to index B<loc>. Acceptable values for B<loc> run from
0 to (X509_NAME_entry_count(name) - 1). The value returned is an
internal pointer which must not be freed.
X509_NAME_get_text_by_NID(), X509_NAME_get_text_by_OBJ() retrieve
the "text" from the first entry in B<name> which matches B<nid> or
B<obj>, if no such entry exists -1 is returned. At most B<len> bytes
will be written and the text written to B<buf> will be null
terminated. The length of the output string written is returned
excluding the terminating null. If B<buf> is <NULL> then the amount
of space needed in B<buf> (excluding the final null) is returned.
=head1 NOTES
X509_NAME_get_text_by_NID() and X509_NAME_get_text_by_OBJ() are
legacy functions which have various limitations which make them
of minimal use in practice. They can only find the first matching
entry and will copy the contents of the field verbatim: this can
be highly confusing if the target is a muticharacter string type
like a BMPString or a UTF8String.
For a more general solution X509_NAME_get_index_by_NID() or
X509_NAME_get_index_by_OBJ() should be used followed by
X509_NAME_get_entry() on any matching indices and then the
various B<X509_NAME_ENTRY> utility functions on the result.
=head1 EXAMPLES
Process all entries:
int i;
X509_NAME_ENTRY *e;
for (i = 0; i < X509_NAME_entry_count(nm); i++)
{
e = X509_NAME_get_entry(nm, i);
/* Do something with e */
}
Process all commonName entries:
int loc;
X509_NAME_ENTRY *e;
loc = -1;
for (;;)
{
lastpos = X509_NAME_get_index_by_NID(nm, NID_commonName, lastpos);
if (lastpos == -1)
break;
e = X509_NAME_get_entry(nm, lastpos);
/* Do something with e */
}
=head1 RETURN VALUES
X509_NAME_get_index_by_NID() and X509_NAME_get_index_by_OBJ()
return the index of the next matching entry or -1 if not found.
X509_NAME_entry_count() returns the total number of entries.
X509_NAME_get_entry() returns an B<X509_NAME> pointer to the
requested entry or B<NULL> if the index is invalid.
=head1 SEE ALSO
L<ERR_get_error(3)|ERR_get_error(3)>, L<d2i_X509_NAME(3)|d2i_X509_NAME(3)>
=head1 HISTORY
TBA
=cut
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