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PAM_GET_USER(3)       DragonFly Library Functions Manual       PAM_GET_USER(3)

NAME

pam_get_user -- retrieve user name

LIBRARY

Pluggable Authentication Module Library (libpam, -lpam)

SYNOPSIS

#include <sys/types.h> #include <security/pam_appl.h> int pam_get_user(pam_handle_t *pamh, const char **user, const char *prompt);

DESCRIPTION

The pam_get_user() function returns the name of the target user, as spec- ified to pam_start(3). If no user was specified, nor set using pam_set_item(3), pam_get_user() will prompt for a user name. Either way, a pointer to the user name is stored in the location pointed to by the user argument. The prompt argument specifies a prompt to use if no user name is cached. If it is NULL, the PAM_USER_PROMPT item will be used. If that item is also NULL, a hardcoded default prompt will be used. Either way, the prompt is expanded using openpam_subst(3) before it is passed to the con- versation function. If pam_get_user() is called from a module and the user_prompt option is set in the policy file, the value of that option takes precedence over both the prompt argument and the PAM_USER_PROMPT item.

RETURN VALUES

The pam_get_user() function returns one of the following values: [PAM_BUF_ERR] Memory buffer error. [PAM_CONV_ERR] Conversation failure. [PAM_SYSTEM_ERR] System error.

SEE ALSO

openpam_subst(3), pam(3), pam_get_authtok(3), pam_get_item(3), pam_set_item(3), pam_start(3), pam_strerror(3)

STANDARDS

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

AUTHORS

The pam_get_user() 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. DragonFly 3.7 May 26, 2012 DragonFly 3.7