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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" DECLARE_PEM_rw, PEM_read_CMS, PEM_read_bio_CMS, PEM_write_CMS, PEM_write_bio_CMS, PEM_write_DHxparams, PEM_write_bio_DHxparams, PEM_read_ECPKParameters, PEM_read_bio_ECPKParameters, PEM_write_ECPKParameters, PEM_write_bio_ECPKParameters, PEM_read_ECPrivateKey, PEM_write_ECPrivateKey, PEM_write_bio_ECPrivateKey, PEM_read_EC_PUBKEY, PEM_read_bio_EC_PUBKEY, PEM_write_EC_PUBKEY, PEM_write_bio_EC_PUBKEY, PEM_read_NETSCAPE_CERT_SEQUENCE, PEM_read_bio_NETSCAPE_CERT_SEQUENCE, PEM_write_NETSCAPE_CERT_SEQUENCE, PEM_write_bio_NETSCAPE_CERT_SEQUENCE, PEM_read_PKCS8, PEM_read_bio_PKCS8, PEM_write_PKCS8, PEM_write_bio_PKCS8, PEM_write_PKCS8_PRIV_KEY_INFO, PEM_read_bio_PKCS8_PRIV_KEY_INFO, PEM_read_PKCS8_PRIV_KEY_INFO, PEM_write_bio_PKCS8_PRIV_KEY_INFO, PEM_read_SSL_SESSION, PEM_read_bio_SSL_SESSION, PEM_write_SSL_SESSION, PEM_write_bio_SSL_SESSION \&\- PEM object encoding routines .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #include <openssl/pem.h> \& \& DECLARE_PEM_rw(name, TYPE) \& \& TYPE *PEM_read_TYPE(FILE *fp, TYPE **a, pem_password_cb *cb, void *u); \& TYPE *PEM_read_bio_TYPE(BIO *bp, TYPE **a, pem_password_cb *cb, void *u); \& int PEM_write_TYPE(FILE *fp, const TYPE *a); \& int PEM_write_bio_TYPE(BIO *bp, const TYPE *a); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" In the description below, \fI\s-1TYPE\s0\fR is used as a placeholder for any of the OpenSSL datatypes, such as \fIX509\fR. The macro \fBDECLARE_PEM_rw\fR expands to the set of declarations shown in the next four lines of the synopsis. .PP These routines convert between local instances of \s-1ASN1\s0 datatypes and the \s-1PEM\s0 encoding. For more information on the templates, see \&\s-1\fBASN1_ITEM\s0\fR\|(3). For more information on the lower-level routines used by the functions here, see \fBPEM_read\fR\|(3). .PP \&\fBPEM_read_TYPE()\fR reads a PEM-encoded object of \fI\s-1TYPE\s0\fR from the file \fBfp\fR and returns it. The \fBcb\fR and \fBu\fR parameters are as described in \&\fBpem_password_cb\fR\|(3). .PP \&\fBPEM_read_bio_TYPE()\fR is similar to \fBPEM_read_TYPE()\fR but reads from the \s-1BIO\s0 \fBbp\fR. .PP \&\fBPEM_write_TYPE()\fR writes the \s-1PEM\s0 encoding of the object \fBa\fR to the file \fBfp\fR. .PP \&\fBPEM_write_bio_TYPE()\fR similarly writes to the \s-1BIO\s0 \fBbp\fR. .SH "NOTES" .IX Header "NOTES" These functions make no assumption regarding the pass phrase received from the password callback. It will simply be treated as a byte sequence. .SH "RETURN VALUES" .IX Header "RETURN VALUES" \&\fBPEM_read_TYPE()\fR and \fBPEM_read_bio_TYPE()\fR return a pointer to an allocated object, which should be released by calling \fBTYPE_free()\fR, or \s-1NULL\s0 on error. .PP \&\fBPEM_write_TYPE()\fR and \fBPEM_write_bio_TYPE()\fR return the number of bytes written or zero on error. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBPEM_read\fR\|(3), \&\fBpassphrase\-encoding\fR\|(7) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 1998\-2018 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (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>.