freebsd-dev/usr.bin/ypcat/ypcat.c
Marcelo Araujo 07c1d44f87 Use nitems instead of "sizeof ypaliases/sizeof ypaliases[0]".
Make the if statement more expressive.

Differential Revision:	D3366
Reviewed by:		ed
Approved by:		bapt, rodrigc (mentor)
2015-08-13 02:36:37 +00:00

143 lines
3.5 KiB
C

/* $OpenBSD: ypcat.c,v 1.16 2015/02/08 23:40:35 deraadt Exp $ */
/*
* Copyright (c) 1992, 1993, 1996 Theo de Raadt <deraadt@theos.com>
* 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.
*
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <ctype.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yp.h>
#include <rpcsvc/ypclnt.h>
static const struct ypalias {
char *alias, *name;
} ypaliases[] = {
{ "passwd", "passwd.byname" },
{ "master.passwd", "master.passwd.byname" },
{ "shadow", "shadow.byname" },
{ "group", "group.byname" },
{ "networks", "networks.byaddr" },
{ "hosts", "hosts.byaddr" },
{ "protocols", "protocols.bynumber" },
{ "services", "services.byname" },
{ "aliases", "mail.aliases" },
{ "ethers", "ethers.byname" },
};
static int key;
static void
usage(void)
{
fprintf(stderr, "%s\n%s\n",
"usage: ypcat [-kt] [-d domainname] mapname",
" ypcat -x");
exit(1);
}
static int
printit(u_long instatus, char *inkey, int inkeylen, char *inval, int invallen,
void *indata)
{
if (instatus != YP_TRUE)
return (instatus);
if (key)
printf("%*.*s ", inkeylen, inkeylen, inkey);
printf("%*.*s\n", invallen, invallen, inval);
return (0);
}
int
main(int argc, char *argv[])
{
char *domain = NULL, *inmap;
struct ypall_callback ypcb;
int c, notrans, r;
u_int i;
notrans = key = 0;
while ((c = getopt(argc, argv, "xd:kt")) != -1)
switch (c) {
case 'x':
for (i = 0; i < nitems(ypaliases); i++)
printf("Use \"%s\" for \"%s\"\n",
ypaliases[i].alias, ypaliases[i].name);
exit(0);
case 'd':
domain = optarg;
break;
case 't':
notrans = 1;
break;
case 'k':
key = 1;
break;
default:
usage();
}
if (optind + 1 != argc)
usage();
if (domain == NULL)
yp_get_default_domain(&domain);
inmap = argv[optind];
if (notrans == 0) {
for (i = 0; i < nitems(ypaliases); i++)
if (strcmp(inmap, ypaliases[i].alias) == 0)
inmap = ypaliases[i].name;
}
ypcb.foreach = printit;
ypcb.data = NULL;
r = yp_all(domain, inmap, &ypcb);
switch (r) {
case 0:
break;
case YPERR_YPBIND:
errx(1, "not running ypbind");
default:
errx(1, "no such map %s. Reason: %s",
inmap, yperr_string(r));
}
exit(0);
}