diff options
Diffstat (limited to 'libio/iogets.c')
| -rw-r--r-- | libio/iogets.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libio/iogets.c b/libio/iogets.c index 9e88ca1037..a61699d694 100644 --- a/libio/iogets.c +++ b/libio/iogets.c @@ -47,6 +47,11 @@ _IO_gets (buf) count = 0; else { + /* This is very tricky since a file descriptor may be in the + non-blocking mode. The error flag doesn't mean much in this + case. We return an error only when there is a new error. */ + int old_error = _IO_stdin->_IO_file_flags & _IO_ERR_SEEN; + _IO_stdin->_IO_file_flags &= ~_IO_ERR_SEEN; buf[0] = (char) ch; count = _IO_getline (_IO_stdin, buf + 1, INT_MAX, '\n', 0) + 1; if (_IO_stdin->_IO_file_flags & _IO_ERR_SEEN) @@ -54,6 +59,8 @@ _IO_gets (buf) retval = NULL; goto unlock_return; } + else + _IO_stdin->_IO_file_flags |= old_error; } buf[count] = 0; retval = buf; |