table of contents
PAM_AUTHENTICATE(3) | Linux-PAM Manual | PAM_AUTHENTICATE(3) |
NAME¶
pam_authenticate - account authentication
SYNOPSIS¶
#include <security/pam_appl.h>
int pam_authenticate(pam_handle_t *pamh, int flags);
DESCRIPTION¶
The pam_authenticate function is used to authenticate the user. The user is required to provide an authentication token depending upon the authentication service, usually this is a password, but could also be a finger print.
The PAM service module may request that the user enter their username vio the the conversation mechanism (see pam_start(3) and pam_conv(3)). The name of the authenticated user will be present in the PAM item PAM_USER. This item may be recovered with a call to pam_get_item(3).
The pamh argument is an authentication handle obtained by a prior call to pam_start(). The flags argument is the binary or of zero or more of the following values:
PAM_SILENT
PAM_DISALLOW_NULL_AUTHTOK
RETURN VALUES¶
PAM_ABORT
PAM_AUTH_ERR
PAM_CRED_INSUFFICIENT
PAM_AUTHINFO_UNVAIL
PAM_MAXTRIES
PAM_SUCCESS
PAM_USER_UNKNOWN
SEE ALSO¶
pam_start(3), pam_setcred(3), pam_chauthtok(3), pam_strerror(3), pam(8)
09/19/2013 | Linux-PAM Manual |