Jump to content United States-English
HP.com Home Products and Services Support and Drivers Solutions How to Buy
» Contact HP
More options
HP.com home
HP-UX Reference > P


HP-UX 11i Version 3: February 2007

Technical documentation

» Feedback
Content starts here

 » Table of Contents

 » Index


pam_get_user — PAM routine to retrieve user name.


cc [ flag ... ] file ... -lpam [ library ... ]

#include <security/pam_appl.h>

int pam_get_user(pam_handle_t *pamh, char **user, const char *prompt);


pam_get_user() is used by PAM service modules to retrieve the current user name from the PAM handle. If the user name has not been set, via pam_start() or pam_set_item(), then the PAM conversation function will be used to prompt the user for the user name with the string "prompt". If prompt is NULL, then pam_get_item() is called and the value of PAM_USER_PROMPT is used for prompting. If the value of PAM_USER_PROMPT is NULL, the following default prompt is used:

Please enter user name:

After the user name is gathered by the conversation function, pam_set_item() is called to set the value of PAM_USER.

By convention, applications that need to prompt for a user name should call pam_set_item() and set the value of PAM_USER_PROMPT before calling pam_authenticate(). The service module's pam_sm_authenticate() function will then call pam_get_user() to prompt for the user name. Note that certain PAM service modules (such as a smart card module) may override the value of PAM_USER_PROMPT and pass in their own prompt.

Applications that call pam_authenticate() multiple times should set the value of PAM_USER to NULL with pam_set_item() before calling pam_authenticate() if they want the user to be prompted for a new user name each time.

The value of user retrieved by pam_get_user() should not be modified or freed. The item will be released by pam_end().


Refer to pam(3) for information on thread-safety of PAM interfaces.


Upon success, pam_get_user() returns PAM_SUCCESS; otherwise it returns an error code. Refer to pam(3) for information on error related return values.

Printable version
Privacy statement Using this site means you accept its terms Feedback to webmaster
© 1983-2007 Hewlett-Packard Development Company, L.P.