Updated: 2021/Apr/14

ERR_set_mark(3)                     OpenSSL                    ERR_set_mark(3)

       ERR_set_mark, ERR_pop_to_mark - set marks and pop errors until mark

       libcrypto, -lcrypto

        #include <openssl/err.h>

        int ERR_set_mark(void);

        int ERR_pop_to_mark(void);

       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.

       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 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

1.1.1i                            2018-09-23                   ERR_set_mark(3)