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1.\" $OpenBSD: ASN1_STRING_new.3,v 1.27 2024/12/27 15:30:17 schwarze Exp $
2.\" OpenSSL 99d63d46 Tue Mar 24 07:52:24 2015 -0400
3.\"
4.\" Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org>
5.\"
6.\" Permission to use, copy, modify, and distribute this software for any
7.\" purpose with or without fee is hereby granted, provided that the above
8.\" copyright notice and this permission notice appear in all copies.
9.\"
10.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17.\"
18.Dd $Mdocdate: December 27 2024 $
19.Dt ASN1_STRING_NEW 3
20.Os
21.Sh NAME
22.Nm ASN1_STRING_new ,
23.Nm ASN1_STRING_type_new ,
24.Nm ASN1_STRING_free ,
25.Nm ASN1_OCTET_STRING_new ,
26.Nm ASN1_OCTET_STRING_free ,
27.Nm ASN1_BIT_STRING_new ,
28.Nm ASN1_BIT_STRING_free ,
29.Nm ASN1_INTEGER_new ,
30.Nm ASN1_INTEGER_free ,
31.Nm ASN1_ENUMERATED_new ,
32.Nm ASN1_ENUMERATED_free ,
33.Nm ASN1_UTF8STRING_new ,
34.Nm ASN1_UTF8STRING_free ,
35.Nm ASN1_IA5STRING_new ,
36.Nm ASN1_IA5STRING_free ,
37.Nm ASN1_UNIVERSALSTRING_new ,
38.Nm ASN1_UNIVERSALSTRING_free ,
39.Nm ASN1_BMPSTRING_new ,
40.Nm ASN1_BMPSTRING_free ,
41.Nm ASN1_GENERALSTRING_new ,
42.Nm ASN1_GENERALSTRING_free ,
43.Nm ASN1_T61STRING_new ,
44.Nm ASN1_T61STRING_free ,
45.Nm ASN1_VISIBLESTRING_new ,
46.Nm ASN1_VISIBLESTRING_free ,
47.Nm ASN1_PRINTABLESTRING_new ,
48.Nm ASN1_PRINTABLESTRING_free ,
49.Nm ASN1_PRINTABLE_new ,
50.Nm ASN1_PRINTABLE_free ,
51.Nm DIRECTORYSTRING_new ,
52.Nm DIRECTORYSTRING_free ,
53.Nm DISPLAYTEXT_new ,
54.Nm DISPLAYTEXT_free ,
55.Nm ASN1_GENERALIZEDTIME_new ,
56.Nm ASN1_GENERALIZEDTIME_free ,
57.Nm ASN1_UTCTIME_new ,
58.Nm ASN1_UTCTIME_free ,
59.Nm ASN1_TIME_new ,
60.Nm ASN1_TIME_free
61.\" deprecated aliases, intentionally undocumented: M_ASN1_IA5STRING_new,
62.\" M_ASN1_ENUMERATED_free, M_ASN1_INTEGER_free, M_ASN1_OCTET_STRING_free
63.Nd allocate and free ASN1_STRING objects
64.Sh SYNOPSIS
65.In openssl/asn1.h
66.Ft ASN1_STRING *
67.Fn ASN1_STRING_new void
68.Ft ASN1_STRING *
69.Fn ASN1_STRING_type_new "int type"
70.Ft void
71.Fn ASN1_STRING_free "ASN1_STRING *a"
72.Ft ASN1_OCTET_STRING *
73.Fn ASN1_OCTET_STRING_new void
74.Ft void
75.Fn ASN1_OCTET_STRING_free "ASN1_OCTET_STRING *a"
76.Ft ASN1_BIT_STRING *
77.Fn ASN1_BIT_STRING_new void
78.Ft void
79.Fn ASN1_BIT_STRING_free "ASN1_BIT_STRING *a"
80.Ft ASN1_INTEGER *
81.Fn ASN1_INTEGER_new void
82.Ft void
83.Fn ASN1_INTEGER_free "ASN1_INTEGER *a"
84.Ft ASN1_ENUMERATED *
85.Fn ASN1_ENUMERATED_new void
86.Ft void
87.Fn ASN1_ENUMERATED_free "ASN1_ENUMERATED *a"
88.Ft ASN1_UTF8STRING *
89.Fn ASN1_UTF8STRING_new void
90.Ft void
91.Fn ASN1_UTF8STRING_free "ASN1_UTF8STRING *a"
92.Ft ASN1_IA5STRING *
93.Fn ASN1_IA5STRING_new void
94.Ft void
95.Fn ASN1_IA5STRING_free "ASN1_IA5STRING *a"
96.Ft ASN1_UNIVERSALSTRING *
97.Fn ASN1_UNIVERSALSTRING_new void
98.Ft void
99.Fn ASN1_UNIVERSALSTRING_free "ASN1_UNIVERSALSTRING *a"
100.Ft ASN1_BMPSTRING *
101.Fn ASN1_BMPSTRING_new void
102.Ft void
103.Fn ASN1_BMPSTRING_free "ASN1_BMPSTRING *a"
104.Ft ASN1_GENERALSTRING *
105.Fn ASN1_GENERALSTRING_new void
106.Ft void
107.Fn ASN1_GENERALSTRING_free "ASN1_GENERALSTRING *a"
108.Ft ASN1_T61STRING *
109.Fn ASN1_T61STRING_new void
110.Ft void
111.Fn ASN1_T61STRING_free "ASN1_T61STRING *a"
112.Ft ASN1_VISIBLESTRING *
113.Fn ASN1_VISIBLESTRING_new void
114.Ft void
115.Fn ASN1_VISIBLESTRING_free "ASN1_VISIBLESTRING *a"
116.Ft ASN1_PRINTABLESTRING *
117.Fn ASN1_PRINTABLESTRING_new void
118.Ft void
119.Fn ASN1_PRINTABLESTRING_free "ASN1_PRINTABLESTRING *a"
120.Ft ASN1_STRING *
121.Fn ASN1_PRINTABLE_new void
122.Ft void
123.Fn ASN1_PRINTABLE_free "ASN1_STRING *a"
124.Ft ASN1_STRING *
125.Fn DIRECTORYSTRING_new void
126.Ft void
127.Fn DIRECTORYSTRING_free "ASN1_STRING *a"
128.Ft ASN1_STRING *
129.Fn DISPLAYTEXT_new void
130.Ft void
131.Fn DISPLAYTEXT_free "ASN1_STRING *a"
132.Ft ASN1_GENERALIZEDTIME *
133.Fn ASN1_GENERALIZEDTIME_new void
134.Ft void
135.Fn ASN1_GENERALIZEDTIME_free "ASN1_GENERALIZEDTIME *a"
136.Ft ASN1_UTCTIME *
137.Fn ASN1_UTCTIME_new void
138.Ft void
139.Fn ASN1_UTCTIME_free "ASN1_UTCTIME *a"
140.Ft ASN1_TIME *
141.Fn ASN1_TIME_new void
142.Ft void
143.Fn ASN1_TIME_free "ASN1_TIME *a"
144.Sh DESCRIPTION
145The
146.Vt ASN1_STRING
147object can represent a variety of ASN.1 built-in types.
148It can store a type and a value.
149.Pp
150All the
151.Fn *_new
152functions
153allocate and initialize an empty
154.Vt ASN1_STRING
155object.
156The following table shows the type assigned to the new object,
157and which ASN.1 type it represents.
158.Bl -column "ASN1_GENERALIZEDTIME_new()" "V_ASN1_GENERALIZEDTIME"
159.It Em constructor function Ta Em OpenSSL type Ta Em ASN.1 type
160.It Ta
161.It Fn ASN1_STRING_new Ta Dv V_ASN1_OCTET_STRING
162.It Fn ASN1_STRING_type_new Ta Fa type No argument
163.It Ta
164.It Fn ASN1_OCTET_STRING_new Ta Dv V_ASN1_OCTET_STRING Ta OCTET STRING
165.It Fn ASN1_BIT_STRING_new Ta Dv V_ASN1_BIT_STRING Ta BIT STRING
166.It Fn ASN1_INTEGER_new Ta Dv V_ASN1_INTEGER Ta INTEGER
167.It Fn ASN1_ENUMERATED_new Ta Dv V_ASN1_ENUMERATED Ta ENUMERATED
168.It Ta
169.It Fn ASN1_UTF8STRING_new Ta Dv V_ASN1_UTF8STRING Ta UTF8String
170.It Fn ASN1_IA5STRING_new Ta Dv V_ASN1_IA5STRING Ta IA5String
171.It Ta
172.It Fn ASN1_UNIVERSALSTRING_new Ta Dv V_ASN1_UNIVERSALSTRING Ta UniversalString
173.It Fn ASN1_BMPSTRING_new Ta Dv V_ASN1_BMPSTRING Ta BMPString
174.It Fn ASN1_GENERALSTRING_new Ta Dv V_ASN1_GENERALSTRING Ta GeneralString
175.It Fn ASN1_T61STRING_new Ta Dv V_ASN1_T61STRING Ta T61String
176.It Fn ASN1_VISIBLESTRING_new Ta Dv V_ASN1_VISIBLESTRING Ta VisibleString
177.It Fn ASN1_PRINTABLESTRING_new Ta Dv V_ASN1_PRINTABLESTRING Ta PrintableString
178.It Ta
179.It Fn ASN1_PRINTABLE_new Ta Dv V_ASN1_UNDEF
180.It Fn DIRECTORYSTRING_new Ta Dv V_ASN1_UNDEF
181.It Fn DISPLAYTEXT_new Ta Dv V_ASN1_UNDEF
182.It Ta
183.It Fn ASN1_GENERALIZEDTIME_new Ta Dv V_ASN1_GENERALIZEDTIME Ta GeneralizedTime
184.It Fn ASN1_UTCTIME_new Ta Dv V_ASN1_UTCTIME Ta UTCTime
185.It Fn ASN1_TIME_new Ta Dv V_ASN1_UNDEF Ta TIME
186.El
187.Pp
188All the
189.Fn *_free
190functions free
191.Fa a
192including any data contained in it.
193If
194.Fa a
195is a
196.Dv NULL
197pointer, no action occurs.
198.Sh RETURN VALUES
199All the
200.Fn *_new
201functions return the new
202.Vt ASN1_STRING
203object if successful; otherwise
204.Dv NULL
205is returned and an error code can be retrieved with
206.Xr ERR_get_error 3 .
207.Sh SEE ALSO
208.Xr a2i_ipadd 3 ,
209.Xr ASN1_BIT_STRING_set 3 ,
210.Xr ASN1_INTEGER_get 3 ,
211.Xr ASN1_item_pack 3 ,
212.Xr ASN1_mbstring_copy 3 ,
213.Xr ASN1_PRINTABLE_type 3 ,
214.Xr ASN1_STRING_length 3 ,
215.Xr ASN1_STRING_print_ex 3 ,
216.Xr ASN1_TIME_set 3 ,
217.Xr ASN1_TYPE_get 3 ,
218.Xr ASN1_UNIVERSALSTRING_to_string 3 ,
219.Xr d2i_ASN1_OBJECT 3 ,
220.Xr d2i_ASN1_OCTET_STRING 3 ,
221.Xr i2a_ASN1_STRING 3 ,
222.Xr s2i_ASN1_INTEGER 3 ,
223.Xr X509_cmp_time 3 ,
224.Xr X509_EXTENSION_get_object 3 ,
225.Xr X509_get_ext_by_OBJ 3 ,
226.Xr X509_NAME_ENTRY_get_object 3
227.Sh HISTORY
228.Fn ASN1_OCTET_STRING_new ,
229.Fn ASN1_OCTET_STRING_free ,
230.Fn ASN1_BIT_STRING_new ,
231.Fn ASN1_BIT_STRING_free ,
232.Fn ASN1_INTEGER_new ,
233.Fn ASN1_INTEGER_free ,
234.Fn ASN1_IA5STRING_new ,
235.Fn ASN1_IA5STRING_free ,
236.Fn ASN1_T61STRING_new ,
237.Fn ASN1_T61STRING_free ,
238.Fn ASN1_PRINTABLESTRING_new ,
239.Fn ASN1_PRINTABLESTRING_free ,
240.Fn ASN1_PRINTABLE_new ,
241.Fn ASN1_PRINTABLE_free ,
242.Fn ASN1_UTCTIME_new ,
243and
244.Fn ASN1_UTCTIME_free
245first appeared in SSLeay 0.5.1.
246.Fn ASN1_STRING_new ,
247.Fn ASN1_STRING_type_new ,
248and
249.Fn ASN1_STRING_free
250first appeared in SSLeay 0.6.5.
251.Fn ASN1_UNIVERSALSTRING_new ,
252.Fn ASN1_UNIVERSALSTRING_free ,
253.Fn ASN1_GENERALSTRING_new ,
254and
255.Fn ASN1_GENERALSTRING_free
256first appeared in SSLeay 0.8.0.
257.Fn ASN1_BMPSTRING_new ,
258.Fn ASN1_BMPSTRING_free ,
259.Fn ASN1_GENERALIZEDTIME_new ,
260and
261.Fn ASN1_GENERALIZEDTIME_free
262first appeared in SSLeay 0.9.0.
263All these functions have been available since
264.Ox 2.4 .
265.Pp
266.Fn ASN1_ENUMERATED_new ,
267.Fn ASN1_ENUMERATED_free ,
268.Fn ASN1_TIME_new ,
269and
270.Fn ASN1_TIME_free
271first appeared in OpenSSL 0.9.2b.
272.Fn ASN1_UTF8STRING_new ,
273.Fn ASN1_UTF8STRING_free ,
274.Fn ASN1_VISIBLESTRING_new ,
275.Fn ASN1_VISIBLESTRING_free ,
276.Fn DIRECTORYSTRING_new ,
277.Fn DIRECTORYSTRING_free ,
278.Fn DISPLAYTEXT_new ,
279and
280.Fn DISPLAYTEXT_free
281first appeared in OpenSSL 0.9.3.
282These functions have been available since
283.Ox 2.6 .
284.Sh BUGS
285.Vt ASN1_OCTET_STRING ,
286.Vt ASN1_BIT_STRING ,
287.Vt ASN1_INTEGER ,
288.Vt ASN1_ENUMERATED ,
289.Vt ASN1_UTF8STRING ,
290.Vt ASN1_IA5STRING ,
291.Vt ASN1_UNIVERSALSTRING ,
292.Vt ASN1_BMPSTRING ,
293.Vt ASN1_GENERALSTRING ,
294.Vt ASN1_T61STRING ,
295.Vt ASN1_VISIBLESTRING ,
296.Vt ASN1_PRINTABLESTRING ,
297.Vt ASN1_GENERALIZEDTIME ,
298.Vt ASN1_UTCTIME ,
299and
300.Vt ASN1_TIME
301are merely typedef aliases of
302.Vt ASN1_STRING
303and provide no type safety whatsoever.