LL2_UPDATE_LOGIN_TIME(3)      Programmers Manual      LL2_UPDATE_LOGIN_TIME(3)

NAME
       ll2_update_login_time - Writes an *new* entry with updated login time.

SYNOPSIS
       #include <lastlog2.h>

       int ll2_update_login_time (struct ll2_context *context, const char
       *user, int64_t ll_time, char **error);

DESCRIPTION
       Writes an new entry to database, defined in context, for user user.
       Time is set by ll_time whereas the other values are taken from an
       already existing entry.  If context is NULL, the default database,
       defined in LL2_DEFAULT_DATABASE, will be taken.

           char    *error = NULL;
           const   char *user = "root";
           int64_t login_time = time(0); // Get the system time;

           int ret = ll2_update_login_time (NULL, user, login_time, &error);

RETURN VALUE
       Returns 0 on success, -ENOMEM or -1 on other failure.  error contains
       an error string if the return value is -1.  error is not guaranteed to
       contain an error string. It could also be NULL if the return value is
       -1.  error should be freed by the caller.

AUTHORS
       Thorsten Kukuk ( <kukuk@suse.de>)

SEE ALSO
       lastlog2(3), ll2_new_context(3), *ll2_unref_context(3),
       *ll2_read_all(3), ll2_write_entry(3), ll2_read_entry(3),
       ll2_remove_entry(3), ll2_rename_user(3), ll2_import_lastlog(3)

REPORTING BUGS
       For bug reports, use the issue tracker at
       <https://github.com/util-linux/util-linux/issues>.

AVAILABILITY
       The liblastlog2 library is part of the util-linux package since version
       2.40. It can be downloaded from Linux Kernel Archive
       <https://www.kernel.org/pub/linux/utils/util-linux/>.

util-linux 2.40.1                 2024-05-06          LL2_UPDATE_LOGIN_TIME(3)