71 lines
2.3 KiB
Plaintext
71 lines
2.3 KiB
Plaintext
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=pod
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=head1 NAME
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PEM_read_bio_ex, PEM_FLAG_SECURE, PEM_FLAG_EAY_COMPATIBLE,
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PEM_FLAG_ONLY_B64 - read PEM format files with custom processing
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=head1 SYNOPSIS
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#include <openssl/pem.h>
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#define PEM_FLAG_SECURE 0x1
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#define PEM_FLAG_EAY_COMPATIBLE 0x2
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#define PEM_FLAG_ONLY_B64 0x4
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int PEM_read_bio_ex(BIO *in, char **name, char **header,
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unsigned char **data, long *len, unsigned int flags);
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=head1 DESCRIPTION
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PEM_read_bio_ex() reads in PEM formatted data from an input BIO, outputting
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the name of the type of contained data, the header information regarding
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the possibly encrypted data, and the binary data payload (after base64 decoding).
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It should generally only be used to implement PEM_read_bio_-family functions
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for specific data types or other usage, but is exposed to allow greater flexibility
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over how processing is performed, if needed.
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If PEM_FLAG_SECURE is set, the intermediate buffers used to read in lines of
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input are allocated from the secure heap.
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If PEM_FLAG_EAY_COMPATIBLE is set, a simple algorithm is used to remove whitespace
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and control characters from the end of each line, so as to be compatible with
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the historical behavior of PEM_read_bio().
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If PEM_FLAG_ONLY_B64 is set, all characters are required to be valid base64
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characters (or newlines); non-base64 characters are treated as end of input.
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If neither PEM_FLAG_EAY_COMPATIBLE or PEM_FLAG_ONLY_B64 is set, control characters
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are ignored.
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If both PEM_FLAG_EAY_COMPATIBLE and PEM_FLAG_ONLY_B64 are set, an error is returned;
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these options are not compatible with each other.
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=head1 NOTES
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The caller must release the storage allocated for *name, *header, and *data.
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If PEM_FLAG_SECURE was set, use OPENSSL_secure_free(); otherwise,
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OPENSSL_free() is used.
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=head1 RETURN VALUES
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PEM_read_bio_ex() returns 1 for success or 0 for failure.
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=head1 SEE ALSO
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L<PEM_bytes_read_bio(3)>
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=head1 HISTORY
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The PEM_read_bio_ex() function was added in OpenSSL 1.1.1.
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=head1 COPYRIGHT
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Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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