Initial commit

1 files changed, 36 insertions, 0 deletions

diff --git a/sys/libc/cfilbuf.c b/sys/libc/cfilbuf.c
new file mode 100644
index 00000000..e37aec75
--- /dev/null
+++ b/sys/libc/cfilbuf.c
@@ -0,0 +1,36 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+*/
+
+#define	import_spp
+#define	import_libc
+#define	import_xnames
+#define	import_stdio
+#include <iraf.h>
+
+
+/* C_FILBUF -- Fill the FIO file buffer.  Called by the GETC macro to fill
+** the file buffer when the end of the buffer is reached.  The function
+** value is either the first char in the refilled buffer or EOF.  If the
+** file is connected to a child process the filter PRFILBUF is called to
+** handle the XMIT and XFER requests.
+*/
+int
+c_filbuf (FILE *fp)
+{
+	register int	nchars;
+	XINT	x_fd = fileno(fp);
+	XINT	(*fillbuffer)();
+	XINT	PRFILBUF(), FILBUF();
+
+
+	fillbuffer = ((fp->_fflags & _FIPC) ? PRFILBUF : FILBUF);
+
+	iferr (nchars = (int) (*fillbuffer)(&x_fd)) {
+	    fp->_fflags |= _FERR;
+	    return (EOF);
+	} else if (nchars == XEOF) {
+	    fp->_fflags |= _FEOF;
+	    return (EOF);
+	} else
+	    return (Memc[fp->_iop++] & 0377);
+}