Libc-825.25.tar.gz

[apple/libc.git] / util / logout.c

diff --git a/util/logout.c b/util/logout.c
index 6c7be20a8a4cfd7a8aa3072a2036c610ef9a5815..245201499de6e2633e6e3073a214d806fb116eee 100644 (file)
--- a/util/logout.c
+++ b/util/logout.c
@@ -1,21 +1,22 @@
 /*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1999, 2005, 2010 Apple Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -52,39 +53,51 @@
  * SUCH DAMAGE.
  */
 
-
 #include <sys/types.h>
 #include <sys/time.h>
 
-#include <fcntl.h>
+#ifdef UTMP_COMPAT
 #include <utmp.h>
+#endif /* UTMP_COMPAT */
+#include <utmpx.h>
+#include <utmpx-darwin.h>
 #include <unistd.h>
-#include <stdlib.h>
 #include <string.h>
 
-typedef struct utmp UTMP;
-
 int
-logout(line)
-       register char *line;
+logout(char *line)
 {
-       register int fd;
-       UTMP ut;
-       int rval;
+       struct utmpx *ux, utx;
+#ifdef UTMP_COMPAT
+#ifdef __LP64__
+       struct utmp32 u;
+#else /* __LP64__ */
+       struct utmp u;
+#endif /* __LP64__ */
+       int which;
+#endif /* UTMP_COMPAT */
 
-       if ((fd = open(_PATH_UTMP, O_RDWR, 0)) < 0)
-               return(0);
-       rval = 0;
-       while (read(fd, &ut, sizeof(UTMP)) == sizeof(UTMP)) {
-               if (!ut.ut_name[0] || strncmp(ut.ut_line, line, UT_LINESIZE))
-                       continue;
-               bzero(ut.ut_name, UT_NAMESIZE);
-               bzero(ut.ut_host, UT_HOSTSIZE);
-               (void)time(&ut.ut_time);
-               (void)lseek(fd, -(off_t)sizeof(UTMP), L_INCR);
-               (void)write(fd, &ut, sizeof(UTMP));
-               rval = 1;
+       bzero(&utx, sizeof(utx));
+       strncpy(utx.ut_line, line, sizeof(utx.ut_line));
+       utx.ut_type = UTMPX_AUTOFILL_MASK | UTMPX_DEAD_IF_CORRESPONDING_MASK | DEAD_PROCESS;
+       (void)gettimeofday(&utx.ut_tv, NULL);
+       UTMPX_LOCK(&__utx__);
+       __setutxent(&__utx__);
+       ux = __pututxline(&__utx__, &utx);
+       __endutxent(&__utx__);
+       if (!ux) {
+               UTMPX_UNLOCK(&__utx__);
+               return 0;
+       }
+#ifdef UTMP_COMPAT
+       if (__utx__.utfile_system) { /* only if we are using _PATH_UTMPX */
+               which = _utmp_compat(ux, &u);
+               if (which & UTMP_COMPAT_UTMP0)
+                       _write_utmp(&u, 0);
+               else if (which & UTMP_COMPAT_UTMP1)
+                       _write_utmp(&u, 1);
        }
-       (void)close(fd);
-       return(rval);
+#endif /* UTMP_COMPAT */
+       UTMPX_UNLOCK(&__utx__);
+       return 1;
 }