180 lines
4.4 KiB
C
180 lines
4.4 KiB
C
/*
|
|
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
|
|
* unrestricted use provided that this legend is included on all tape
|
|
* media and as a part of the software program in whole or part. Users
|
|
* may copy or modify Sun RPC without charge, but are not authorized
|
|
* to license or distribute it to anyone else except as part of a product or
|
|
* program developed by the user.
|
|
*
|
|
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
|
|
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
|
|
*
|
|
* Sun RPC is provided with no support and without any obligation on the
|
|
* part of Sun Microsystems, Inc. to assist in its use, correction,
|
|
* modification or enhancement.
|
|
*
|
|
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
|
|
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
|
|
* OR ANY PART THEREOF.
|
|
*
|
|
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
|
|
* or profits or other special, indirect and consequential damages, even if
|
|
* Sun has been advised of the possibility of such damages.
|
|
*
|
|
* Sun Microsystems, Inc.
|
|
* 2550 Garcia Avenue
|
|
* Mountain View, California 94043
|
|
*/
|
|
/*
|
|
* warmstart.c
|
|
* Allows for gathering of registrations from an earlier dumped file.
|
|
*
|
|
* Copyright (c) 1990 by Sun Microsystems, Inc.
|
|
*/
|
|
|
|
/*
|
|
* #ident "@(#)warmstart.c 1.7 93/07/05 SMI"
|
|
* $FreeBSD$/
|
|
*/
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <stdio.h>
|
|
#include <rpc/rpc.h>
|
|
#include <rpc/rpcb_prot.h>
|
|
#include <rpc/xdr.h>
|
|
#ifdef PORTMAP
|
|
#include <netinet/in.h>
|
|
#include <rpc/pmap_prot.h>
|
|
#endif
|
|
#include <syslog.h>
|
|
#include <unistd.h>
|
|
|
|
#include "rpcbind.h"
|
|
|
|
/*
|
|
* XXX this code is unsafe and is not used. It should be made safe.
|
|
*/
|
|
|
|
|
|
/* These files keep the pmap_list and rpcb_list in XDR format */
|
|
#define RPCBFILE "/tmp/rpcbind.file"
|
|
#ifdef PORTMAP
|
|
#define PMAPFILE "/tmp/portmap.file"
|
|
#endif
|
|
|
|
static bool_t write_struct(char *, xdrproc_t, void *);
|
|
static bool_t read_struct(char *, xdrproc_t, void *);
|
|
|
|
static bool_t
|
|
write_struct(char *filename, xdrproc_t structproc, void *list)
|
|
{
|
|
FILE *fp;
|
|
XDR xdrs;
|
|
mode_t omask;
|
|
|
|
omask = umask(077);
|
|
fp = fopen(filename, "w");
|
|
if (fp == NULL) {
|
|
int i;
|
|
|
|
for (i = 0; i < 10; i++)
|
|
close(i);
|
|
fp = fopen(filename, "w");
|
|
if (fp == NULL) {
|
|
syslog(LOG_ERR,
|
|
"cannot open file = %s for writing", filename);
|
|
syslog(LOG_ERR, "cannot save any registration");
|
|
return (FALSE);
|
|
}
|
|
}
|
|
(void) umask(omask);
|
|
xdrstdio_create(&xdrs, fp, XDR_ENCODE);
|
|
|
|
if (structproc(&xdrs, list) == FALSE) {
|
|
syslog(LOG_ERR, "rpcbind: xdr_%s: failed", filename);
|
|
fclose(fp);
|
|
return (FALSE);
|
|
}
|
|
XDR_DESTROY(&xdrs);
|
|
fclose(fp);
|
|
return (TRUE);
|
|
}
|
|
|
|
static bool_t
|
|
read_struct(char *filename, xdrproc_t structproc, void *list)
|
|
{
|
|
FILE *fp;
|
|
XDR xdrs;
|
|
struct stat sbuf;
|
|
|
|
if (stat(filename, &sbuf) != 0) {
|
|
fprintf(stderr,
|
|
"rpcbind: cannot stat file = %s for reading\n", filename);
|
|
goto error;
|
|
}
|
|
if ((sbuf.st_uid != 0) || (sbuf.st_mode & S_IRWXG) ||
|
|
(sbuf.st_mode & S_IRWXO)) {
|
|
fprintf(stderr,
|
|
"rpcbind: invalid permissions on file = %s for reading\n",
|
|
filename);
|
|
goto error;
|
|
}
|
|
fp = fopen(filename, "r");
|
|
if (fp == NULL) {
|
|
fprintf(stderr,
|
|
"rpcbind: cannot open file = %s for reading\n", filename);
|
|
goto error;
|
|
}
|
|
xdrstdio_create(&xdrs, fp, XDR_DECODE);
|
|
|
|
if (structproc(&xdrs, list) == FALSE) {
|
|
fprintf(stderr, "rpcbind: xdr_%s: failed\n", filename);
|
|
fclose(fp);
|
|
goto error;
|
|
}
|
|
XDR_DESTROY(&xdrs);
|
|
fclose(fp);
|
|
return (TRUE);
|
|
|
|
error: fprintf(stderr, "rpcbind: will start from scratch\n");
|
|
return (FALSE);
|
|
}
|
|
|
|
void
|
|
write_warmstart()
|
|
{
|
|
(void) write_struct(RPCBFILE, (xdrproc_t)xdr_rpcblist_ptr, &list_rbl);
|
|
#ifdef PORTMAP
|
|
(void) write_struct(PMAPFILE, (xdrproc_t)xdr_pmaplist_ptr, &list_pml);
|
|
#endif
|
|
|
|
}
|
|
|
|
void
|
|
read_warmstart()
|
|
{
|
|
rpcblist_ptr tmp_rpcbl = NULL;
|
|
#ifdef PORTMAP
|
|
struct pmaplist *tmp_pmapl = NULL;
|
|
#endif
|
|
int ok1, ok2 = TRUE;
|
|
|
|
ok1 = read_struct(RPCBFILE, (xdrproc_t)xdr_rpcblist_ptr, &tmp_rpcbl);
|
|
if (ok1 == FALSE)
|
|
return;
|
|
#ifdef PORTMAP
|
|
ok2 = read_struct(PMAPFILE, (xdrproc_t)xdr_pmaplist_ptr, &tmp_pmapl);
|
|
#endif
|
|
if (ok2 == FALSE) {
|
|
xdr_free((xdrproc_t) xdr_rpcblist_ptr, (char *)&tmp_rpcbl);
|
|
return;
|
|
}
|
|
xdr_free((xdrproc_t) xdr_rpcblist_ptr, (char *)&list_rbl);
|
|
list_rbl = tmp_rpcbl;
|
|
#ifdef PORTMAP
|
|
xdr_free((xdrproc_t) xdr_pmaplist_ptr, (char *)&list_pml);
|
|
list_pml = tmp_pmapl;
|
|
#endif
|
|
}
|