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PAM_GET_USER(3)          BSD 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 specified 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 will be used.  If that item is also NULL, a hardcoded default prompt will be used.

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
     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.

BSD                            December 21, 2007                           BSD