ERR_SET_MARK(3)            Library Functions Manual            ERR_SET_MARK(3)

NAME
     ERR_set_mark, ERR_pop_to_mark - set marks and pop OpenSSL 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.

SEE ALSO
     ERR(3)

HISTORY
     ERR_set_mark() and ERR_pop_to_mark() first appeared in OpenSSL 0.9.8 and
     have been available since OpenBSD 4.5.

Linux 6.8.2-arch2-1             March 23, 2018             Linux 6.8.2-arch2-1