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ll2_read_all(3) — Linux manual page

NAME |SYNOPSIS |DESCRIPTION |RETURN VALUE |AUTHORS |SEE ALSO |REPORTING BUGS |AVAILABILITY

LL2_READ_ALL(3)             Programmers ManualLL2_READ_ALL(3)

NAME        top

       ll2_read_all - Reads all entries from database and calls the       callback function for each entry.

SYNOPSIS        top

#include <lastlog2.h> int ll2_read_all (struct ll2_context*context, int (*callback)(const char *user, int64_tll_time, constchar *tty, const char *rhost, const char *pam_service, const char*cb_error), char **error);

DESCRIPTION        top

       Reads all entries from database, defined incontext, and calls       callback functioncallback for each entry. Ifcontext is NULL, the       default database, defined inLL2_DEFAULT_DATABASE, will be taken.           char  *error = NULL;           const char *user = "root";           static int           callback (const char *res_user, int64_t ll_time, const char *res_tty,                     const char *res_rhost, const char *res_service, const char *cb_error)           {              /* returning != 0 if no further entry has to be handled by the callback */              return 0;           }           int ret = ll2_read_all (NULL, callback, &error);

RETURN VALUE        top

       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 is set and can be checked.

AUTHORS        top

       Thorsten Kukuk (kukuk@suse.de)

SEE ALSO        top

lastlog2(3),ll2_new_context(3), *ll2_unref_context(3),*ll2_write_entry(3),ll2_read_entry(3),ll2_update_login_time(3),ll2_remove_entry(3),ll2_rename_user(3),ll2_import_lastlog(3)

REPORTING BUGS        top

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

AVAILABILITY        top

       Theliblastlog2library 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 theutil-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       util-linux@vger.kernel.org. This page was obtained from the       project's upstream Git repository       ⟨git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git⟩ on       2025-08-11. (At that time, the date of the most recent commit that       was found in the repository was 2025-08-05.) 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 isnot part of the original manual page), send a       mail to man-pages@man7.orgutil-linux 2.42-start-521-ec46  2025-01-16LL2_READ_ALL(3)

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