Fix the type of the NULL arg to execl()

Idea from: Theo de Raadt <deraadt@openbsd.org>

2 files changed, 4 insertions, 4 deletions

diff --git a/libutil/pw_util.c b/libutil/pw_util.c
index c6c70ff..ce9eba2 100644
--- a/libutil/pw_util.c
+++ b/libutil/pw_util.c
@@ -174,11 +174,11 @@ char *username;
 		if(!username) {
 			warnx("rebuilding the database...");
 			execl(_PATH_PWD_MKDB, "pwd_mkdb", "-p", "-d", mppath,
-			    tempname, NULL);
+			    tempname, (char *)NULL);
 		} else {
 			warnx("updating the database...");
 			execl(_PATH_PWD_MKDB, "pwd_mkdb", "-p", "-d", mppath,
-			    "-u", username, tempname, NULL);
+			    "-u", username, tempname, (char *)NULL);
 		}
 		pw_error(_PATH_PWD_MKDB, 1, 1);
 	}
@@ -209,7 +209,7 @@ pw_edit(notsetuid)
 			(void)setuid(getuid());
 		}
 		errno = 0;
-		execlp(editor, p, tempname, NULL);
+		execlp(editor, p, tempname, (char *)NULL);
 		_exit(errno);
 	}
 	for (;;) {
diff --git a/pw/pw.c b/pw/pw.c
index b59b9f9..01ba43a 100644
--- a/pw/pw.c
+++ b/pw/pw.c
@@ -248,7 +248,7 @@ main(int argc, char *argv[])
 			warn("fork()");
 		else if (pid == 0) {
 			/* Is make anywhere else? */
-			execlp("/usr/bin/make", "make", NULL);
+			execlp("/usr/bin/make", "make", (char *)NULL);
 			_exit(1);
 		} else {
 			int   i;