lib/, src/: Reduce scope of local variables

Signed-off-by: Alejandro Colomar <alx@kernel.org>

lib/commonio.c

@@ -574,9 +574,7 @@ static void add_one_entry_nis (struct commonio_db *db,
 int commonio_open (struct commonio_db *db, int mode)
 {
 	char *buf;
-	char *cp;
 	char *line;
-	struct commonio_entry *p;
 	void *eptr = NULL;
 	int flags = mode;
 	size_t buflen;
@@ -642,6 +640,9 @@ int commonio_open (struct commonio_db *db, int mode)
 	}
 
 	while (db->ops->fgets (buf, buflen, db->fp) == buf) {
+		char                   *cp;
+		struct commonio_entry  *p;
+
 		while (   (strrchr (buf, '\n') == NULL)
 		       && (feof (db->fp) == 0)) {
 			size_t len;

src/logoutd.c

@@ -120,14 +120,8 @@ static void send_mesg_to_tty (int tty_fd)
 int
 main(int argc, char **argv)
 {
-	int    i;
 	pid_t  pid;
 
-	struct utmpx  *ut;
-	char          user[sizeof (ut->ut_user) + 1];	/* terminating NUL */
-	char          tty_name[sizeof (ut->ut_line) + 6];	/* /dev/ + NUL */
-	int           tty_fd;
-
 	if (1 != argc) {
 		(void) fputs (_("Usage: logoutd\n"), stderr);
 	}
@@ -137,7 +131,7 @@ main(int argc, char **argv)
 	(void) textdomain (PACKAGE);
 
 #ifndef DEBUG
-	for (i = 0; close (i) == 0; i++);
+	for (int i = 0; close(i) == 0; i++);
 
 	setpgrp ();
 
@@ -168,6 +162,7 @@ main(int argc, char **argv)
 	 * are not supposed to still be logged in.
 	 */
 	while (true) {
+		struct utmpx  *ut;
 
 		/*
 		 * Attempt to re-open the utmp file. The file is only
@@ -181,6 +176,10 @@ main(int argc, char **argv)
 		 * is permitted to be signed on at this time.
 		 */
 		while ((ut = getutxent()) != NULL) {
+			int   tty_fd;
+			char  user[sizeof(ut->ut_user) + 1];      // NUL
+			char  tty_name[sizeof(ut->ut_line) + 6];  // /dev/ + NUL
+
 			if (ut->ut_type != USER_PROCESS) {
 				continue;
 			}