установить внутренние данные модуля (set module internal data)
Имя (Name)
pam_set_data - set module internal data
Синопсис (Synopsis)
#include <security/pam_modules.h>
int pam_set_data(pam_handle_t *pamh,
const char *module_data_name, void *data,
void (*cleanup)(pam_handle_t *pamh, void *data, int error_status));
Описание (Description)
The pam_set_data function associates a pointer to an object with
the (hopefully) unique string module_data_name in the PAM context
specified by the pamh argument.
PAM modules may be dynamically loadable objects. In general such
files should not contain static variables. This function and its
counterpart pam_get_data(3), provide a mechanism for a module to
associate some data with the handle pamh. Typically a module will
call the pam_set_data function to register some data under a
(hopefully) unique module_data_name. The data is available for
use by other modules too but not by an application. Since this
functions stores only a pointer to the data, the module should
not modify or free the content of it.
The function cleanup() is associated with the data and, if
non-NULL, it is called when this data is over-written or
following a call to pam_end(3).
The error_status argument is used to indicate to the module the
sort of action it is to take in cleaning this data item. As an
example, Kerberos creates a ticket file during the authentication
phase, this file might be associated with a data item. When
pam_end(3) is called by the module, the error_status carries the
return value of the pam_authenticate(3) or other libpam function
as appropriate. Based on this value the Kerberos module may
choose to delete the ticket file (authentication failure) or
leave it in place.
The error_status may have been logically OR'd with either of the
following two values:
PAM_DATA_REPLACE
When a data item is being replaced (through a second call to
pam_set_data) this mask is used. Otherwise, the call is
assumed to be from pam_end(3).
PAM_DATA_SILENT
Which indicates that the process would prefer to perform the
cleanup() quietly. That is, discourages logging/messages to
the user.
Возвращаемое значение (Return value)
PAM_BUF_ERR
Memory buffer error.
PAM_SUCCESS
Data was successful stored.
PAM_SYSTEM_ERR
A NULL pointer was submitted as PAM handle or the function
was called by an application.
Смотри также (See also)
pam_end(3), pam_get_data(3), pam_strerror(3)
