busybox/libbb/fclose_nonstdin.c
Denis Vlasenko defc1ea340 *: introduce and use FAST_FUNC: regparm on i386, otherwise no-on
text    data     bss     dec     hex filename
 808035     611    6868  815514   c719a busybox_old
 804472     611    6868  811951   c63af busybox_unstripped
2008-06-27 02:52:20 +00:00

26 lines
715 B
C

/* vi: set sw=4 ts=4: */
/*
* fclose_nonstdin implementation for busybox
*
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* A number of standard utilities can accept multiple command line args
* of '-' for stdin, according to SUSv3. So we encapsulate the check
* here to save a little space.
*/
#include "libbb.h"
int FAST_FUNC fclose_if_not_stdin(FILE *f)
{
/* Some more paranoid applets want ferror() check too */
int r = ferror(f); /* NB: does NOT set errno! */
if (r) errno = EIO; /* so we'll help it */
if (f != stdin)
return (r | fclose(f)); /* fclose does set errno on error */
return r;
}