| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | ERR_set_mark, ERR_clear_last_mark, ERR_pop_to_mark
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| 6 | - set mark, clear mark and pop errors until mark
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| 7 |
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| 8 | =head1 SYNOPSIS
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| 9 |
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| 10 | #include <openssl/err.h>
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| 11 |
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| 12 | int ERR_set_mark(void);
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| 13 | int ERR_pop_to_mark(void);
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| 14 | int ERR_clear_last_mark(void);
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| 15 |
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| 16 | =head1 DESCRIPTION
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| 17 |
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| 18 | ERR_set_mark() sets a mark on the current topmost error record if there
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| 19 | is one.
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| 20 |
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| 21 | ERR_pop_to_mark() will pop the top of the error stack until a mark is found.
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| 22 | The mark is then removed. If there is no mark, the whole stack is removed.
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| 23 |
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| 24 | ERR_clear_last_mark() removes the last mark added if there is one.
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| 25 |
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| 26 | =head1 RETURN VALUES
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| 27 |
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| 28 | ERR_set_mark() returns 0 if the error stack is empty, otherwise 1.
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| 29 |
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| 30 | ERR_clear_last_mark() and ERR_pop_to_mark() return 0 if there was no mark in the
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| 31 | error stack, which implies that the stack became empty, otherwise 1.
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| 32 |
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| 33 | =head1 COPYRIGHT
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| 34 |
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| 35 | Copyright 2003-2021 The OpenSSL Project Authors. All Rights Reserved.
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| 36 |
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| 37 | Licensed under the Apache License 2.0 (the "License"). You may not use
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| 38 | this file except in compliance with the License. You can obtain a copy
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| 39 | in the file LICENSE in the source distribution or at
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| 40 | L<https://www.openssl.org/source/license.html>.
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| 41 |
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| 42 | =cut
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