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-rw-r--r--pwd/fgetpwent_r.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/pwd/fgetpwent_r.c b/pwd/fgetpwent_r.c
index 7699901177..1aa70bffb5 100644
--- a/pwd/fgetpwent_r.c
+++ b/pwd/fgetpwent_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 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
@@ -74,12 +74,18 @@ __fgetpwent_r (FILE *stream, struct passwd *resbuf, char *buffer,
do
{
+ buffer[buflen] = '\xff';
p = fgets (buffer, buflen, stream);
- if (p == NULL)
+ if (p == NULL && feof (stream))
{
*result = NULL;
return errno;
}
+ if (p == NULL || buffer[buflen] != '\xff')
+ {
+ *result = NULL;
+ return errno = ERANGE;
+ }
/* Skip leading blanks. */
while (isspace (*p))