PAM_GET_USER(3) Linux-PAM Manual PAM_GET_USER(3)
pam_get_user - get user name
#include <security/pam_modules.h> int pam_get_user(const pam_handle_t *pamh, const char **user, const char *prompt);
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.
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.
pam_end(3), pam_get_item(3), pam_set_item(3), pam_strerror(3)
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Pages that refer to this page: pam(3), pam_get_item(3)