utmp

commit 2583293ac5eb66e988cb0492ca707779b8ea2be6
parent 4a855c000f1d300a44c784ed88d78a11d41cdca7
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sun, 22 Feb 2015 16:25:34 +0000

Use setegid instead of setgid

The definition of seteigd is better than the definition of
setgid, which behaviour depends of _POSIX_SAVED_IDS.

Diffstat:
M
bsd.c
 | 
4
++--
M
posix.c
 | 
4
++--
M
utmp.c
 | 
5
-----

3 files changed, 4 insertions(+), 9 deletions(-)
diff --git a/bsd.c b/bsd.c
@@ -44,9 +44,9 @@ addutmp(void)
 	strncpy(utmp.ut_host, host, sizeof(utmp.ut_host));
 	time(&utmp.ut_time);
 
-	setgid(egid);
+	setegid(egid);
 	login(&utmp);
-	setgid(gid);
+	setegid(gid);
 }
 
 void
diff --git a/posix.c b/posix.c
@@ -98,10 +98,10 @@ addutmp(void)
 	utmp.ut_tv.tv_usec = 0;
 	 /* don't use no standard fields host and session */
 
-	setgid(egid);
+	setegid(egid);
 	if(!pututxline(&utmp))
 		die("error adding utmp entry:%s", strerror(errno));
-	setgid(gid);
+	setegid(gid);
 	endutxent();
 }
 
diff --git a/utmp.c b/utmp.c
@@ -14,11 +14,6 @@
 #include <sys/wait.h>
 
 
-#ifndef _POSIX_SAVED_IDS
-#error "This program needs saved id behaviour"
-#endif
-
-
 struct passwd *pw;
 gid_t egid, gid;