PAM_GET_USER - Online Linux Manual PageSection : 3
Updated : 09/03/2021
Source : Linux-PAM Manual
Note : Linux-PAM Manual
NAMEpam_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);
DESCRIPTIONThe pam_get_user function returns the name of the user specified by pam_start(3). If no user was specified it returns 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: • The prompt argument passed to the function. • What is returned by pam_get_item (pamh, PAM_USER_PROMPT, ... ); • 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 VALUESPAM_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. PAM_BUF_ERR Memory buffer error. PAM_ABORT Error resuming an old conversation. PAM_CONV_AGAIN The conversation method supplied by the application is waiting for an event.
SEE ALSOpam_end(3), pam_get_item(3), pam_set_item(3), pam_strerror(3) 0
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