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:
    • 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 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)

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