diff options
Diffstat (limited to 'Linux-PAM/libpam/pam_modutil_getlogin.c')
-rw-r--r-- | Linux-PAM/libpam/pam_modutil_getlogin.c | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/Linux-PAM/libpam/pam_modutil_getlogin.c b/Linux-PAM/libpam/pam_modutil_getlogin.c deleted file mode 100644 index dcd28a13..00000000 --- a/Linux-PAM/libpam/pam_modutil_getlogin.c +++ /dev/null @@ -1,80 +0,0 @@ -/* - * $Id: pam_modutil_getlogin.c,v 1.2 2005/11/23 16:42:40 kukuk Exp $ - * - * A central point for invoking getlogin(). Hopefully, this is a - * little harder to spoof than all the other versions that are out - * there. - */ - -#include "pam_modutil_private.h" - -#include <stdlib.h> -#include <unistd.h> -#include <utmp.h> - -#define _PAMMODUTIL_GETLOGIN "_pammodutil_getlogin" - -const char * -pam_modutil_getlogin(pam_handle_t *pamh) -{ - int status; - const void *logname; - const void *void_curr_tty; - const char *curr_tty; - char *curr_user; - struct utmp *ut, line; - - status = pam_get_data(pamh, _PAMMODUTIL_GETLOGIN, &logname); - if (status == PAM_SUCCESS) { - return logname; - } - - status = pam_get_item(pamh, PAM_TTY, &void_curr_tty); - if ((status != PAM_SUCCESS) || (void_curr_tty == NULL)) - curr_tty = ttyname(0); - else - curr_tty = (const char*)void_curr_tty; - - if (curr_tty == NULL) { - return NULL; - } - - if (curr_tty[0] == '/') { /* full path */ - const char *t; - curr_tty++; - if ((t = strchr(curr_tty, '/')) != NULL) { - curr_tty = t + 1; - } - } - logname = NULL; - - setutent(); - strncpy(line.ut_line, curr_tty, sizeof(line.ut_line)); - - if ((ut = getutline(&line)) == NULL) { - goto clean_up_and_go_home; - } - - curr_user = calloc(sizeof(line.ut_user)+1, 1); - if (curr_user == NULL) { - goto clean_up_and_go_home; - } - - strncpy(curr_user, ut->ut_user, sizeof(ut->ut_user)); - /* calloc already zeroed the memory */ - - status = pam_set_data(pamh, _PAMMODUTIL_GETLOGIN, curr_user, - pam_modutil_cleanup); - if (status != PAM_SUCCESS) { - free(curr_user); - goto clean_up_and_go_home; - } - - logname = curr_user; - -clean_up_and_go_home: - - endutent(); - - return logname; -} |