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--- physlock-11/auth.c 2017-07-13 07:23:52.000000000 +0000
+++ physlock-11/auth.c 2018-09-21 21:21:36.240024566 +0000
@@ -16,13 +16,14 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
+#define _GNU_SOURCE
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pwd.h>
#include <unistd.h>
-#include <utmp.h>
+#include <utmpx.h>
#include <errno.h>
#include <security/pam_misc.h>
@@ -41,12 +42,12 @@ static void get_pam(userinfo_t *uinfo) {
void get_user(userinfo_t *uinfo, int vt, uid_t owner) {
FILE *uf;
- struct utmp r;
+ struct utmpx r;
struct passwd *pw;
char tty[16], name[UT_NAMESIZE+1];
uinfo->name = NULL;
- while ((uf = fopen(_PATH_UTMP, "r")) == NULL && errno == EINTR);
+ while ((uf = fopen(UTMPX_FILE, "r")) == NULL && errno == EINTR);
if (uf != NULL) {
snprintf(tty, sizeof(tty), "tty%d", vt);
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