diff options
Diffstat (limited to 'usr.sbin/rpcbind/warmstart.c')
| -rw-r--r-- | usr.sbin/rpcbind/warmstart.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/usr.sbin/rpcbind/warmstart.c b/usr.sbin/rpcbind/warmstart.c new file mode 100644 index 0000000..fea2789 --- /dev/null +++ b/usr.sbin/rpcbind/warmstart.c @@ -0,0 +1,179 @@ +/* + * 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 a 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 __P((char *, xdrproc_t, void *)); +static bool_t read_struct __P((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, xdr_rpcblist_ptr, &list_rbl); +#ifdef PORTMAP + (void) write_struct(PMAPFILE, 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, xdr_rpcblist_ptr, &tmp_rpcbl); + if (ok1 == FALSE) + return; +#ifdef PORTMAP + ok2 = read_struct(PMAPFILE, 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 +} |
