ERR_SET_MARK(3ossl) OpenSSL ERR_SET_MARK(3ossl)
NAME
ERR_set_mark, ERR_clear_last_mark, ERR_pop_to_mark, ERR_count_to_mark,
ERR_pop - set mark, clear mark, pop errors until mark and pop last
error
SYNOPSIS
#include <openssl/err.h>
int ERR_set_mark(void);
int ERR_pop_to_mark(void);
int ERR_clear_last_mark(void);
int ERR_count_to_mark(void);
int ERR_pop(void);
DESCRIPTION
ERR_set_mark(3) sets a mark on the current topmost error record if there
is one.
ERR_pop_to_mark() will pop the top of the error stack until a mark is
found. The mark is then removed. If there is no mark, the whole stack
is removed.
ERR_clear_last_mark() removes the last mark added if there is one.
ERR_count_to_mark() returns the number of entries on the error stack
above the most recently marked entry, not including that entry. If
there is no mark in the error stack, the number of entries in the error
stack is returned.
ERR_pop() unconditionally pops a single error entry from the top of the
error stack (which is the entry obtainable via ERR_peek_last_error(3)).
RETURN VALUES
ERR_set_mark(3) returns 0 if the error stack is empty, otherwise 1.
ERR_clear_last_mark() and ERR_pop_to_mark() return 0 if there was no
mark in the error stack, which implies that the stack became empty,
otherwise 1.
ERR_count_to_mark() returns the number of error stack entries found
above the most recent mark, if any, or the total number of error stack
entries.
ERR_pop() returns 1 if an error was popped or 0 if the error stack was
empty.
HISTORY
ERR_count_to_mark() was added in OpenSSL 3.2. ERR_pop() was added in
OpenSSL 3.3.
COPYRIGHT
Copyright 2003-2024 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
<https://www.openssl.org/source/license.html>.
3.5.3 2025-09-16 ERR_SET_MARK(3ossl)
openssl3 3.5.3 - Generated Fri Sep 26 15:21:43 CDT 2025