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LEARN ABOUT NETBSD

pam_authenticate

PAM_AUTHENTICATE(3)					   BSD Library Functions Manual 				       PAM_AUTHENTICATE(3)

NAME

     pam_authenticate -- perform authentication within the PAM framework

LIBRARY

     Pluggable Authentication Module Library (libpam, -lpam)

SYNOPSIS

     #include <sys/types.h>
     #include <security/pam_appl.h>

     int
     pam_authenticate(pam_handle_t *pamh, int flags);

DESCRIPTION

     The pam_authenticate function attempts to authenticate the user associated with the pam context specified by the pamh argument.

     The application is free to call pam_authenticate as many times as it wishes, but some modules may maintain an internal retry counter and
     return PAM_MAXTRIES when it exceeds some preset or hardcoded limit.

     The flags argument is the binary or of zero or more of the following values:

     PAM_SILENT 	 Do not emit any messages.

     PAM_DISALLOW_NULL_AUTHTOK
			 Fail if the user's authentication token is null.

     If any other bits are set, pam_authenticate will return PAM_SYMBOL_ERR.

RETURN VALUES

     The pam_authenticate function returns one of the following values:

     [PAM_ABORT]	 General failure.

     [PAM_AUTHINFO_UNAVAIL]
			 Authentication information is unavailable.

     [PAM_AUTH_ERR]	 Authentication error.

     [PAM_BUF_ERR]	 Memory buffer error.

     [PAM_CONV_ERR]	 Conversation failure.

     [PAM_CRED_INSUFFICIENT]
			 Insufficient credentials.

     [PAM_MAXTRIES]	 Maximum number of tries exceeded.

     [PAM_PERM_DENIED]	 Permission denied.

     [PAM_SERVICE_ERR]	 Error in service module.

     [PAM_SYMBOL_ERR]	 Invalid symbol.

     [PAM_SYSTEM_ERR]	 System error.

     [PAM_USER_UNKNOWN]  Unknown user.

SEE ALSO

     pam(3), pam_strerror(3)

STANDARDS

     X/Open Single Sign-On Service (XSSO) - Pluggable Authentication Modules, June 1997.

AUTHORS

     The pam_authenticate function and this manual page were developed for the FreeBSD Project by ThinkSec AS and Network Associates Laboratories,
     the Security Research Division of Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 (``CBOSS''), as part of the DARPA
     CHATS research program.

BSD
								 December 18, 2011							       BSD

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