PAM_END(3)                      Linux-PAM Manual                      PAM_END(3)

       pam_end - termination of PAM transaction

       #include <security/pam_appl.h>

       int pam_end(pam_handle_t *pamh, int pam_status);

       The pam_end function terminates the PAM transaction and is the last
       function an application should call in the PAM context. Upon return the
       handle pamh is no longer valid and all memory associated with it will be

       The pam_status argument should be set to the value returned to the
       application by the last PAM library call.

       The value taken by pam_status is used as an argument to the module
       specific callback function, cleanup() (See pam_set_data(3) and
       pam_get_data(3)). In this way the module can be given notification of the
       pass/fail nature of the tear-down process, and perform any last minute
       tasks that are appropriate to the module before it is unlinked. This
       argument can be logically OR'd with PAM_DATA_SILENT to indicate to
       indicate that the module should not treat the call too seriously. It is
       generally used to indicate that the current closing of the library is in
       a fork(2)ed process, and that the parent will take care of cleaning up
       things that exist outside of the current process space (files etc.).

       This function free's all memory for items associated with the
       pam_set_item(3) and pam_get_item(3) functions. Pointers associated with
       such objects are not valid anymore after pam_end was called.

           Transaction was successful terminated.

           System error, for example a NULL pointer was submitted as PAM handle
           or the function was called by a module.

       pam_get_data(3), pam_set_data(3), pam_start(3), pam_strerror(3)

Linux-PAM Manual                   11/10/2020                         PAM_END(3)