ERR_set_mark, ERR_pop_to_mark - set marks and pop errors until mark
SYNOPSIS
#include <openssl/err.h>
int ERR_set_mark(void);
int ERR_pop_to_mark(void);
DESCRIPTION
ERR_set_mark() 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.
RETURN VALUES
ERR_set_mark() returns 0 if the error stack is empty, otherwise 1.
ERR_pop_to_mark() returns 0 if there was no mark in the error stack, which implies that the stack became empty, otherwise 1.
COPYRIGHT
Copyright 2003-2017 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (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.