Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #282
Difficulty: Easy
Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources.
True or False?
Linux & Unix Commands - Search Man Pages

pam_get_user(3) [centos man page]

PAM_GET_USER(3) 						 Linux-PAM Manual						   PAM_GET_USER(3)

NAME
pam_get_user - get user name SYNOPSIS
#include <security/pam_modules.h> int pam_get_user(const pam_handle_t *pamh, const char **user, const char *prompt); DESCRIPTION
The pam_get_user function returns the name of the user specified by pam_start(3). If no user was specified it what pam_get_item (pamh, PAM_USER, ... ); would have returned. If this is NULL it obtains the username via the pam_conv(3) mechanism, it prompts the user with the first non-NULL string in the following list: o The prompt argument passed to the function. o What is returned by pam_get_item (pamh, PAM_USER_PROMPT, ... ); o The default prompt: "login: " By whatever means the username is obtained, a pointer to it is returned as the contents of *user. Note, this memory should not be free()'d or modified by the module. This function sets the PAM_USER item associated with the pam_set_item(3) and pam_get_item(3) functions. RETURN VALUES
PAM_SUCCESS User name was successful retrieved. PAM_SYSTEM_ERR A NULL pointer was submitted. PAM_CONV_ERR The conversation method supplied by the application failed to obtain the username. SEE ALSO
pam_end(3), pam_get_item(3), pam_set_item(3), pam_strerror(3) Linux-PAM Manual 09/19/2013 PAM_GET_USER(3)

Check Out this Related Man Page

PAM_GET_USER(3) 						 Linux-PAM Manual						   PAM_GET_USER(3)

NAME
pam_get_user - get user name SYNOPSIS
#include <security/pam_modules.h> int pam_get_user(const pam_handle_t *pamh, const char **user, const char *prompt); DESCRIPTION
The pam_get_user function returns the name of the user specified by pam_start(3). If no user was specified it what pam_get_item (pamh, PAM_USER, ... ); would have returned. If this is NULL it obtains the username via the pam_conv(3) mechanism, it prompts the user with the first non-NULL string in the following list: o The prompt argument passed to the function. o What is returned by pam_get_item (pamh, PAM_USER_PROMPT, ... ); o The default prompt: "login: " By whatever means the username is obtained, a pointer to it is returned as the contents of *user. Note, this memory should not be free()'d or modified by the module. This function sets the PAM_USER item associated with the pam_set_item(3) and pam_get_item(3) functions. RETURN VALUES
PAM_SUCCESS User name was successful retrieved. PAM_SYSTEM_ERR A NULL pointer was submitted. PAM_CONV_ERR The conversation method supplied by the application failed to obtain the username. SEE ALSO
pam_end(3), pam_get_item(3), pam_set_item(3), pam_strerror(3) Linux-PAM Manual 06/04/2011 PAM_GET_USER(3)

Featured Tech Videos