busybox/libbb/fclose_nonstdin.c
Denys Vlasenko ebe6d9d875 whitespace and comment format fixes, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-10-05 14:40:24 +02:00

25 lines
707 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 source tree.
*/
#include "libbb.h"
/* 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.
*/
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;
}