strace/tests/printflags.c
Dmitry V. Levin 121e1961d7 tests: add printflags function to libtests
* tests/printflags.c: New file.
* tests/tests.h (printflags): New prototype.
* tests/Makefile.am (libtests_a_SOURCES): Add it.
2016-04-26 00:13:47 +00:00

79 lines
2.4 KiB
C

/*
* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
* Copyright (c) 2005-2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "tests.h"
#include "xlat.h"
#include <stdio.h>
int
printflags(const struct xlat *xlat, unsigned long long flags,
const char *const dflt)
{
if (flags == 0 && xlat->val == 0 && xlat->str) {
fputs(xlat->str, stdout);
return 1;
}
int n;
char sep = 0;
for (n = 0; xlat->str; xlat++) {
if (xlat->val && (flags & xlat->val) == xlat->val) {
if (sep)
putc(sep, stdout);
else
sep = '|';
fputs(xlat->str, stdout);
flags &= ~xlat->val;
n++;
}
}
if (n) {
if (flags) {
if (sep)
putc(sep, stdout);
printf("%#llx", flags);
n++;
}
} else {
if (flags) {
printf("%#llx", flags);
if (dflt)
printf(" /* %s */", dflt);
} else {
if (dflt)
putc('0', stdout);
}
}
return n;
}