/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Portions of this source code were derived from Berkeley
* under license from the Regents of the University of
* California.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* YP updater for public key map
*/
#include <stdio.h>
#include <rpc/rpc.h>
#include <rpcsvc/ypclnt.h>
#include <sys/file.h>
extern char *malloc();
int
main(argc, argv)
int argc;
char *argv[];
{
unsigned op;
char name[MAXNETNAMELEN + 1];
char key[256];
char data[256];
char line[256];
unsigned keylen;
unsigned datalen;
FILE *rf;
FILE *wf;
char *fname;
char *tmpname;
int err;
if (argc != 3) {
exit(YPERR_YPERR);
}
fname = argv[1];
tmpname = malloc(strlen(fname) + 4);
if (tmpname == NULL) {
exit(YPERR_YPERR);
}
sprintf(tmpname, "%s.tmp", fname);
/*
* Get input
*/
if (! scanf("%s\n", name)) {
exit(YPERR_YPERR);
}
if (! scanf("%u\n", &op)) {
exit(YPERR_YPERR);
}
if (! scanf("%u\n", &keylen)) {
exit(YPERR_YPERR);
}
if (! fread(key, keylen, 1, stdin)) {
exit(YPERR_YPERR);
}
key[keylen] = 0;
if (! scanf("%u\n", &datalen)) {
exit(YPERR_YPERR);
}
if (! fread(data, datalen, 1, stdin)) {
exit(YPERR_YPERR);
}
data[datalen] = 0;
/*
* Check permission
*/
if (strcmp(name, key) != 0) {
exit(YPERR_ACCESS);
}
if (strcmp(name, "nobody") == 0) {
/*
* Can't change "nobody"s key.
*/
exit(YPERR_ACCESS);
}
/*
* Open files
*/
rf = fopen(fname, "r");
if (rf == NULL) {
exit(YPERR_YPERR);
}
wf = fopen(tmpname, "w");
if (wf == NULL) {
exit(YPERR_YPERR);
}
err = -1;
while (fgets(line, sizeof (line), rf)) {
if (err < 0 && match(line, name)) {
switch (op) {
case YPOP_INSERT:
err = YPERR_KEY;
break;
case YPOP_STORE:
case YPOP_CHANGE:
fprintf(wf, "%s %s\n", key, data);
err = 0;
break;
case YPOP_DELETE:
/* do nothing */
err = 0;
break;
}
} else {
fputs(line, wf);
}
}
if (err < 0) {
switch (op) {
case YPOP_CHANGE:
case YPOP_DELETE:
err = YPERR_KEY;
break;
case YPOP_INSERT:
case YPOP_STORE:
err = 0;
fprintf(wf, "%s %s\n", key, data);
break;
}
}
fclose(wf);
fclose(rf);
if (err == 0) {
if (rename(tmpname, fname) < 0) {
exit(YPERR_YPERR);
}
} else {
if (unlink(tmpname) < 0) {
exit(YPERR_YPERR);
}
}
if (fork() == 0) {
close(0); close(1); close(2);
open("/dev/null", O_RDWR, 0);
dup(0); dup(0);
execl("/bin/sh", "sh", "-c", argv[2], NULL);
}
return (err);
/* NOTREACHED */
}
int
match(line, name)
char *line;
char *name;
{
int len;
len = strlen(name);
return (strncmp(line, name, len) == 0 &&
(line[len] == ' ' || line[len] == '\t'));
}