From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001 From: Joseph Hunkeler Date: Wed, 8 Jul 2015 20:46:52 -0400 Subject: Initial commit --- sys/libc/cfilbuf.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 sys/libc/cfilbuf.c (limited to 'sys/libc/cfilbuf.c') 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 + + +/* 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); +} -- cgit