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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | AUTHORS | SEE ALSO | REPORTING BUGS | AVAILABILITY |
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LL2_READ_ENTRY(3) Programmers Manual LL2_READ_ENTRY(3)
ll2_read_entry - Reads one entry from database and returns that.
#include <lastlog2.h>
int ll2_read_entry (struct ll2_context *context, const char
*user, int64_t *ll_time, char tty, char rhost, char pam_service,
char error);
Reads the first entry from database, defined in context, for user
user. If context is NULL, the default database, defined in
LL2_DEFAULT_DATABASE, will be taken.
char *error = NULL;
const char *user = "root";
int64_t res_time;
char *res_tty = NULL;
char *res_rhost = NULL;
char *res_service = NULL;
int ret = ll2_read_entry (NULL, user, &res_time, &res_tty, &res_rhost, &res_service, &error);
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, could also be NULL. error
should be freed by the caller. If lastlog2 database does not
exist at all, the errno ENOENT has been set and can be checked.
The evaluated values are returned by ll_time, tty, rhost and
pam_service.
Thorsten Kukuk ([email protected])
lastlog2(3), ll2_new_context(3), *ll2_unref_context(3),
*ll2_read_all(3), ll2_write_entry(3), ll2_update_login_time(3),
ll2_remove_entry(3), ll2_rename_user(3), ll2_import_lastlog(3)
For bug reports, use the issue tracker at
https://github.com/util-linux/util-linux/issues.
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/>. This page
is part of the util-linux (a random collection of Linux
utilities) project. Information about the project can be found at
⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩. If you have
a bug report for this manual page, send it to
[email protected]. This page was obtained from the
project's upstream Git repository
⟨git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git⟩ on
2024-06-14. (At that time, the date of the most recent commit
that was found in the repository was 2024-06-10.) If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page,
or you have corrections or improvements to the information in
this COLOPHON (which is not part of the original manual page),
send a mail to [email protected]
util-linux 2.41.devel-537-e... 2024-01-28 LL2_READ_ENTRY(3)
Pages that refer to this page: lastlog2(3), ll2_import_lastlog(3), ll2_read_all(3), ll2_remove_entry(3), ll2_rename_user(3), ll2_update_login_time(3), ll2_write_entry(3)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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