xref: /freebsd/secure/lib/libcrypto/man/man3/PEM_read_CMS.3 (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c)
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Title "PEM_READ_CMS 3"
PEM_READ_CMS 3 "2022-07-05" "1.1.1q" "OpenSSL"
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"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
"SYNOPSIS"
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
"DESCRIPTION"
Header "DESCRIPTION" In the description below, \s-1TYPE\s0 is used as a placeholder for any of the OpenSSL datatypes, such as X509. The macro DECLARE_PEM_rw expands to the set of declarations shown in the next four lines of the synopsis.

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-1ASN1_ITEM\s0\|(3). For more information on the lower-level routines used by the functions here, see PEM_read\|(3).

\fBPEM_read_TYPE() reads a PEM-encoded object of \s-1TYPE\s0 from the file fp and returns it. The cb and u parameters are as described in \fBpem_password_cb\|(3).

\fBPEM_read_bio_TYPE() is similar to PEM_read_TYPE() but reads from the \s-1BIO\s0 bp.

\fBPEM_write_TYPE() writes the \s-1PEM\s0 encoding of the object a to the file fp.

\fBPEM_write_bio_TYPE() similarly writes to the \s-1BIO\s0 bp.

"NOTES"
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.
"RETURN VALUES"
Header "RETURN VALUES" \fBPEM_read_TYPE() and PEM_read_bio_TYPE() return a pointer to an allocated object, which should be released by calling TYPE_free(), or \s-1NULL\s0 on error.

\fBPEM_write_TYPE() and PEM_write_bio_TYPE() return the number of bytes written or zero on error.

"SEE ALSO"
Header "SEE ALSO" \fBPEM_read\|(3), \fBpassphrase-encoding\|(7)
"COPYRIGHT"
Header "COPYRIGHT" Copyright 1998-2018 The OpenSSL Project Authors. All Rights Reserved.

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>.