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tests: add printxval function to libtests

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* tests/tests.h (printxval): New prototype.
* tests/printxval.c: New file.
* tests/Makefile.am  (libtests_a_SOURCES): Add it.
This commit is contained in:
Дмитрий Левин 2016-04-27 20:29:46 +00:00
parent d6c76f3a37
commit a182d8c6c1
3 changed files with 57 additions and 1 deletions
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1
tests/Makefile.am
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@ -50,6 +50,7 @@ libtests_a_SOURCES = \
overflowuid.c \
print_quoted_string.c \
printflags.c \
printxval.c \
tail_alloc.c \
tests.h \
tprintf.c \

51
tests/printxval.c Normal file
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@ -0,0 +1,51 @@
/*
* 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
printxval(const struct xlat *xlat, unsigned long long val,
const char *const dflt)
{
for (; xlat->str; xlat++) {
if (xlat->val == val) {
fputs(xlat->str, stdout);
return 1;
}
}
printf("%#llx", val);
if (dflt)
printf(" /* %s */", dflt);
return 0;
}

6
tests/tests.h
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@ -90,10 +90,14 @@ void check_overflowgid(const int);
/* Translate errno to its name. */
const char *errno2name(void);
/* Print flags in symbolic form according to xlat table. */
struct xlat;
/* Print flags in symbolic form according to xlat table. */
int printflags(const struct xlat *, const unsigned long long, const char *);
/* Print constant in symbolic form according to xlat table. */
int printxval(const struct xlat *, const unsigned long long, const char *);
# define ARRAY_SIZE(arg) ((unsigned int) (sizeof(arg) / sizeof((arg)[0])))
# define LENGTH_OF(arg) ((unsigned int) sizeof(arg) - 1)