diff options
Diffstat (limited to 'libio/fileops.c')
-rw-r--r-- | libio/fileops.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/libio/fileops.c b/libio/fileops.c index decb9d7185..7c6e271495 100644 --- a/libio/fileops.c +++ b/libio/fileops.c @@ -849,6 +849,17 @@ _IO_file_xsgetn (fp, data, n) want = n; + if (fp->_IO_buf_base == NULL) + { + /* Maybe we already have a push back pointer. */ + if (fp->_IO_save_base != NULL) + { + free (fp->_IO_save_base); + fp->_flags &= ~_IO_IN_BACKUP; + } + _IO_doallocbuf (fp); + } + while (want > 0) { have = fp->_IO_read_end - fp->_IO_read_ptr; |