1 .\" Automatically generated by Pod::Man 4.14 (Pod::Simple 3.40)
4 .\" ========================================================================
5 .de Sp \" Vertical space (when we can't use .PP)
9 .de Vb \" Begin verbatim text
14 .de Ve \" End verbatim text
18 .\" Set up some character translations and predefined strings. \*(-- will
19 .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
20 .\" double quote, and \*(R" will give a right double quote. \*(C+ will
21 .\" give a nicer C++. Capital omega is used to do unbreakable dashes and
22 .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
23 .\" nothing in troff, for use with C<>.
25 .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
29 . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
30 . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
45 .\" Escape single quotes in literal strings from groff's Unicode transform.
49 .\" If the F register is >0, we'll generate index entries on stderr for
50 .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
51 .\" entries marked with X<> in POD. Of course, you'll have to process the
52 .\" output yourself in some meaningful fashion.
54 .\" Avoid warning from groff about undefined register 'F'.
58 .if \n(.g .if rF .nr rF 1
59 .if (\n(rF:(\n(.g==0)) \{\
62 . tm Index:\\$1\t\\n%\t"\\$2"
72 .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
73 .\" Fear. Run. Save yourself. No user-serviceable parts.
74 . \" fudge factors for nroff and troff
83 . ds #H ((1u-(\\\\n(.fu%2u))*.13m)
89 . \" simple accents for nroff and troff
99 . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
100 . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
101 . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
102 . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
103 . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
104 . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
106 . \" troff and (daisy-wheel) nroff accents
107 .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
108 .ds 8 \h'\*(#H'\(*b\h'-\*(#H'
109 .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
110 .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
111 .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
112 .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
113 .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
114 .ds ae a\h'-(\w'a'u*4/10)'e
115 .ds Ae A\h'-(\w'A'u*4/10)'E
116 . \" corrections for vroff
117 .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
118 .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
119 . \" for low resolution devices (crt and lpr)
120 .if \n(.H>23 .if \n(.V>19 \
133 .\" ========================================================================
135 .IX Title "X509_NEW 3"
136 .TH X509_NEW 3 "2020-09-22" "1.1.1h" "OpenSSL"
137 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
138 .\" way too many mistakes in technical documents.
142 X509_chain_up_ref, X509_new, X509_free, X509_up_ref \- X509 certificate ASN1 allocation functions
144 .IX Header "SYNOPSIS"
146 \& #include <openssl/x509.h>
148 \& X509 *X509_new(void);
149 \& void X509_free(X509 *a);
150 \& int X509_up_ref(X509 *a);
151 \& STACK_OF(X509) *X509_chain_up_ref(STACK_OF(X509) *x);
154 .IX Header "DESCRIPTION"
155 The X509 \s-1ASN1\s0 allocation routines, allocate and free an
156 X509 structure, which represents an X509 certificate.
158 \&\fBX509_new()\fR allocates and initializes a X509 structure with reference count
161 \&\fBX509_free()\fR decrements the reference count of \fBX509\fR structure \fBa\fR and
162 frees it up if the reference count is zero. If \fBa\fR is \s-1NULL\s0 nothing is done.
164 \&\fBX509_up_ref()\fR increments the reference count of \fBa\fR.
166 \&\fBX509_chain_up_ref()\fR increases the reference count of all certificates in
167 chain \fBx\fR and returns a copy of the stack.
170 The function \fBX509_up_ref()\fR if useful if a certificate structure is being
171 used by several different operations each of which will free it up after
172 use: this avoids the need to duplicate the entire certificate structure.
174 The function \fBX509_chain_up_ref()\fR doesn't just up the reference count of
175 each certificate it also returns a copy of the stack, using \fBsk_X509_dup()\fR,
176 but it serves a similar purpose: the returned chain persists after the
177 original has been freed.
179 .IX Header "RETURN VALUES"
180 If the allocation fails, \fBX509_new()\fR returns \fB\s-1NULL\s0\fR and sets an error
181 code that can be obtained by \fBERR_get_error\fR\|(3).
182 Otherwise it returns a pointer to the newly allocated structure.
184 \&\fBX509_up_ref()\fR returns 1 for success and 0 for failure.
186 \&\fBX509_chain_up_ref()\fR returns a copy of the stack or \fB\s-1NULL\s0\fR if an error
189 .IX Header "SEE ALSO"
190 \&\fBd2i_X509\fR\|(3),
191 \&\fBERR_get_error\fR\|(3),
192 \&\fBX509_CRL_get0_by_serial\fR\|(3),
193 \&\fBX509_get0_signature\fR\|(3),
194 \&\fBX509_get_ext_d2i\fR\|(3),
195 \&\fBX509_get_extension_flags\fR\|(3),
196 \&\fBX509_get_pubkey\fR\|(3),
197 \&\fBX509_get_subject_name\fR\|(3),
198 \&\fBX509_get_version\fR\|(3),
199 \&\fBX509_NAME_add_entry_by_txt\fR\|(3),
200 \&\fBX509_NAME_ENTRY_get_object\fR\|(3),
201 \&\fBX509_NAME_get_index_by_NID\fR\|(3),
202 \&\fBX509_NAME_print_ex\fR\|(3),
203 \&\fBX509_sign\fR\|(3),
204 \&\fBX509V3_get_d2i\fR\|(3),
205 \&\fBX509_verify_cert\fR\|(3)
207 .IX Header "COPYRIGHT"
208 Copyright 2002\-2016 The OpenSSL Project Authors. All Rights Reserved.
210 Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use
211 this file except in compliance with the License. You can obtain a copy
212 in the file \s-1LICENSE\s0 in the source distribution or at
213 <https://www.openssl.org/source/license.html>.