diff options
Diffstat (limited to 'libio/iofopncook.c')
| -rw-r--r-- | libio/iofopncook.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libio/iofopncook.c b/libio/iofopncook.c index b845d29657..978a7fa345 100644 --- a/libio/iofopncook.c +++ b/libio/iofopncook.c @@ -189,6 +189,7 @@ _IO_fopencookie (cookie, mode, io_functions) read_write = _IO_NO_READS|_IO_IS_APPENDING; break; default: + __set_errno (EINVAL); return NULL; } if (mode[0] == '+' || (mode[0] == 'b' && mode[1] == '+')) |