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-rw-r--r--pwd/putpwent.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/pwd/putpwent.c b/pwd/putpwent.c
index c27f687..7ab48c1 100644
--- a/pwd/putpwent.c
+++ b/pwd/putpwent.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -20,6 +20,7 @@
#include <stdio.h>
#include <pwd.h>
+#define _S(x) x ? x : ""
/* Write an entry to the given stream.
This must know the format of the password file. */
@@ -35,9 +36,9 @@ putpwent (p, stream)
}
if (fprintf (stream, "%s:%s:%u:%u:%s:%s:%s\n",
- p->pw_name, p->pw_passwd,
+ p->pw_name, _S (p->pw_passwd),
p->pw_uid, p->pw_gid,
- p->pw_gecos, p->pw_dir, p->pw_shell) < 0)
+ _S (p->pw_gecos), _S (p->pw_dir), _S (p->pw_shell)) < 0)
return -1;
return 0;