NetBSD/gnu/dist/toolchain/libio/stdio/setfileno.c

18 lines
419 B
C

/* Some known programs (xterm, pdksh?) non-portably change the _file
field of s struct _iobuf. This kludge allows the same "functionality".
This code is an undocumented feature for iostream/stdio. Use it at
your own risk. */
#include "libioP.h"
#include "stdio.h"
void
setfileno(fp, fd)
_IO_FILE* fp;
int fd;
{
CHECK_FILE(fp, );
if ((fp->_flags & _IO_IS_FILEBUF) != 0)
fp->_fileno = fd;
}