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.IX Title "PEM_X509_INFO_READ_BIO_EX 3ossl"
.TH PEM_X509_INFO_READ_BIO_EX 3ossl "2024-09-03" "3.1.7+quic" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH "NAME"
PEM_X509_INFO_read_ex, PEM_X509_INFO_read, PEM_X509_INFO_read_bio_ex, PEM_X509_INFO_read_bio
\&\- read PEM\-encoded data structures into one or more X509_INFO objects
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/pem.h>
\&
\& STACK_OF(X509_INFO) *PEM_X509_INFO_read_ex(FILE *fp, STACK_OF(X509_INFO) *sk,
\&                                            pem_password_cb *cb, void *u,
\&                                            OSSL_LIB_CTX *libctx,
\&                                            const char *propq);
\& STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk,
\&                                         pem_password_cb *cb, void *u);
\& STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio_ex(BIO *bio,
\&                                                STACK_OF(X509_INFO) *sk,
\&                                                pem_password_cb *cb, void *u,
\&                                                OSSL_LIB_CTX *libctx,
\&                                                const char *propq);
\& STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk,
\&                                             pem_password_cb *cb, void *u);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBPEM_X509_INFO_read_ex()\fR loads the \fBX509_INFO\fR objects from a file \fIfp\fR.
.PP
\&\fBPEM_X509_INFO_read()\fR is similar to \fBPEM_X509_INFO_read_ex()\fR
but uses the default (\s-1NULL\s0) library context \fIlibctx\fR
and empty property query \fIpropq\fR.
.PP
\&\fBPEM_X509_INFO_read_bio_ex()\fR loads the \fBX509_INFO\fR objects using a bio \fIbp\fR.
.PP
\&\fBPEM_X509_INFO_read_bio()\fR is similar to \fBPEM_X509_INFO_read_bio_ex()\fR
but uses the default (\s-1NULL\s0) library context \fIlibctx\fR
and empty property query \fIpropq\fR.
.PP
Each of the loaded \fBX509_INFO\fR objects can contain a \s-1CRL,\s0 a certificate,
and/or a private key.
The elements are read sequentially, and as far as they are of different type than
the elements read before, they are combined into the same \fBX509_INFO\fR object.
The idea behind this is that if, for instance, a certificate is followed by
a private key, the private key is supposed to correspond to the certificate.
.PP
If the input stack \fIsk\fR is \s-1NULL\s0 a new stack is allocated,
else the given stack is extended.
.PP
The optional \fIcb\fR and \fIu\fR parameters can be used for providing a pass phrase
needed for decrypting encrypted \s-1PEM\s0 structures (normally only private keys).
See \fBPEM_read_bio_PrivateKey\fR\|(3) and \fBpassphrase\-encoding\fR\|(7) for details.
.PP
The library context \fIlibctx\fR and property query \fIpropq\fR are used for fetching
algorithms from providers.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBPEM_X509_INFO_read_ex()\fR, \fBPEM_X509_INFO_read()\fR,
\&\fBPEM_X509_INFO_read_bio_ex()\fR and \fBPEM_X509_INFO_read_bio()\fR return
a stack of \fBX509_INFO\fR objects or \s-1NULL\s0 on failure.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBPEM_read_bio_ex\fR\|(3),
\&\fBPEM_read_bio_PrivateKey\fR\|(3),
\&\fBpassphrase\-encoding\fR\|(7)
.SH "HISTORY"
.IX Header "HISTORY"
The functions \fBPEM_X509_INFO_read_ex()\fR and
\&\fBPEM_X509_INFO_read_bio_ex()\fR were added in OpenSSL 3.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2020\-2022 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the Apache License 2.0 (the \*(L"License\*(R").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.