changeset 5502:47a1f9959023

Don't include <errno.h>, <sys/param.h>, <time.h>; not needed to establish interface. (errno): Remove decl. (HAVE_STRUCT_XTMP_UT_TYPE): Remove; no longer needed. (UT_TYPE_EQ, UT_TYPE_NOT_DEFINED, UT_TYPE_BOOT_TIME, UT_TYPE_USER_PROCESS, IS_USER_PROCESS): New macros.
author Paul Eggert <eggert@cs.ucla.edu>
date Wed, 01 Dec 2004 07:30:05 +0000
parents 96318a40c410
children b7a07754fa0d
files lib/readutmp.h
diffstat 1 files changed, 25 insertions(+), 14 deletions(-) [+]
line wrap: on
line diff
--- a/lib/readutmp.h
+++ b/lib/readutmp.h
@@ -137,24 +137,10 @@
     (HAVE_STRUCT_UTMP_UT_PID \
      || HAVE_STRUCT_UTMPX_UT_PID)
 
-# define HAVE_STRUCT_XTMP_UT_TYPE \
-    (HAVE_STRUCT_UTMP_UT_TYPE \
-     || HAVE_STRUCT_UTMPX_UT_TYPE)
-
 typedef struct UTMP_STRUCT_NAME STRUCT_UTMP;
 
 enum { UT_USER_SIZE = sizeof UT_USER ((STRUCT_UTMP *) 0) };
 
-# include <time.h>
-# ifdef HAVE_SYS_PARAM_H
-#  include <sys/param.h>
-# endif
-
-# include <errno.h>
-# ifndef errno
-extern int errno;
-# endif
-
 # if !defined (UTMP_FILE) && defined (_PATH_UTMP)
 #  define UTMP_FILE _PATH_UTMP
 # endif
@@ -181,6 +167,31 @@
 #  define WTMP_FILE "/etc/wtmp"
 # endif
 
+# if HAVE_STRUCT_UTMP_UT_TYPE || HAVE_STRUCT_UTMPX_UT_TYPE
+#  define UT_TYPE_EQ(U, V) ((U)->ut_type == (V))
+#  define UT_TYPE_NOT_DEFINED 0
+# else
+#  define UT_TYPE_EQ(U, V) 0
+#  define UT_TYPE_NOT_DEFINED 1
+# endif
+
+# ifdef BOOT_TIME
+#  define UT_TYPE_BOOT_TIME(U) UT_TYPE_EQ (U, BOOT_TIME)
+# else
+#  define UT_TYPE_BOOT_TIME(U) 0
+# endif
+
+# ifdef USER_PROCESS
+#  define UT_TYPE_USER_PROCESS(U) UT_TYPE_EQ (U, USER_PROCESS)
+# else
+#  define UT_TYPE_USER_PROCESS(U) 0
+# endif
+
+# define IS_USER_PROCESS(U)					\
+   (UT_USER (U)[0]						\
+    && (UT_TYPE_USER_PROCESS (U)				\
+        || (UT_TYPE_NOT_DEFINED && UT_TIME_MEMBER (U) != 0)))
+
 char *extract_trimmed_name (const STRUCT_UTMP *ut);
 int read_utmp (const char *filename, size_t *n_entries, STRUCT_UTMP **utmp_buf);