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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/doc/crypto/X509_NAME_add_entry_by_txt.pod | |
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Diffstat (limited to 'openssl/doc/crypto/X509_NAME_add_entry_by_txt.pod')
-rw-r--r-- | openssl/doc/crypto/X509_NAME_add_entry_by_txt.pod | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/openssl/doc/crypto/X509_NAME_add_entry_by_txt.pod b/openssl/doc/crypto/X509_NAME_add_entry_by_txt.pod new file mode 100644 index 000000000..e2ab4b0d2 --- /dev/null +++ b/openssl/doc/crypto/X509_NAME_add_entry_by_txt.pod @@ -0,0 +1,114 @@ +=pod + +=head1 NAME + +X509_NAME_add_entry_by_txt, X509_NAME_add_entry_by_OBJ, X509_NAME_add_entry_by_NID, +X509_NAME_add_entry, X509_NAME_delete_entry - X509_NAME modification functions + +=head1 SYNOPSIS + +int X509_NAME_add_entry_by_txt(X509_NAME *name, const char *field, int type, const unsigned char *bytes, int len, int loc, int set); + +int X509_NAME_add_entry_by_OBJ(X509_NAME *name, ASN1_OBJECT *obj, int type, unsigned char *bytes, int len, int loc, int set); + +int X509_NAME_add_entry_by_NID(X509_NAME *name, int nid, int type, unsigned char *bytes, int len, int loc, int set); + +int X509_NAME_add_entry(X509_NAME *name,X509_NAME_ENTRY *ne, int loc, int set); + +X509_NAME_ENTRY *X509_NAME_delete_entry(X509_NAME *name, int loc); + +=head1 DESCRIPTION + +X509_NAME_add_entry_by_txt(), X509_NAME_add_entry_by_OBJ() and +X509_NAME_add_entry_by_NID() add a field whose name is defined +by a string B<field>, an object B<obj> or a NID B<nid> respectively. +The field value to be added is in B<bytes> of length B<len>. If +B<len> is -1 then the field length is calculated internally using +strlen(bytes). + +The type of field is determined by B<type> which can either be a +definition of the type of B<bytes> (such as B<MBSTRING_ASC>) or a +standard ASN1 type (such as B<V_ASN1_IA5STRING>). The new entry is +added to a position determined by B<loc> and B<set>. + +X509_NAME_add_entry() adds a copy of B<X509_NAME_ENTRY> structure B<ne> +to B<name>. The new entry is added to a position determined by B<loc> +and B<set>. Since a copy of B<ne> is added B<ne> must be freed up after +the call. + +X509_NAME_delete_entry() deletes an entry from B<name> at position +B<loc>. The deleted entry is returned and must be freed up. + +=head1 NOTES + +The use of string types such as B<MBSTRING_ASC> or B<MBSTRING_UTF8> +is strongly recommened for the B<type> parameter. This allows the +internal code to correctly determine the type of the field and to +apply length checks according to the relevant standards. This is +done using ASN1_STRING_set_by_NID(). + +If instead an ASN1 type is used no checks are performed and the +supplied data in B<bytes> is used directly. + +In X509_NAME_add_entry_by_txt() the B<field> string represents +the field name using OBJ_txt2obj(field, 0). + +The B<loc> and B<set> parameters determine where a new entry should +be added. For almost all applications B<loc> can be set to -1 and B<set> +to 0. This adds a new entry to the end of B<name> as a single valued +RelativeDistinguishedName (RDN). + +B<loc> actually determines the index where the new entry is inserted: +if it is -1 it is appended. + +B<set> determines how the new type is added. If it is zero a +new RDN is created. + +If B<set> is -1 or 1 it is added to the previous or next RDN +structure respectively. This will then be a multivalued RDN: +since multivalues RDNs are very seldom used B<set> is almost +always set to zero. + +=head1 EXAMPLES + +Create an B<X509_NAME> structure: + +"C=UK, O=Disorganized Organization, CN=Joe Bloggs" + + X509_NAME *nm; + nm = X509_NAME_new(); + if (nm == NULL) + /* Some error */ + if (!X509_NAME_add_entry_by_txt(nm, MBSTRING_ASC, + "C", "UK", -1, -1, 0)) + /* Error */ + if (!X509_NAME_add_entry_by_txt(nm, MBSTRING_ASC, + "O", "Disorganized Organization", -1, -1, 0)) + /* Error */ + if (!X509_NAME_add_entry_by_txt(nm, MBSTRING_ASC, + "CN", "Joe Bloggs", -1, -1, 0)) + /* Error */ + +=head1 RETURN VALUES + +X509_NAME_add_entry_by_txt(), X509_NAME_add_entry_by_OBJ(), +X509_NAME_add_entry_by_NID() and X509_NAME_add_entry() return 1 for +success of 0 if an error occurred. + +X509_NAME_delete_entry() returns either the deleted B<X509_NAME_ENTRY> +structure of B<NULL> if an error occurred. + +=head1 BUGS + +B<type> can still be set to B<V_ASN1_APP_CHOOSE> to use a +different algorithm to determine field types. Since this form does +not understand multicharacter types, performs no length checks and +can result in invalid field types its use is strongly discouraged. + +=head1 SEE ALSO + +L<ERR_get_error(3)|ERR_get_error(3)>, L<d2i_X509_NAME(3)|d2i_X509_NAME(3)> + +=head1 HISTORY + +=cut |