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/*
* decode_yp.c
*
* RPC "Yellow Pee".
*
* Totally untested, i don't run YP. Let me know if this works. :-)
*
* Copyright (c) 2000 Dug Song <dugsong@monkey.org>
*
* $Id: decode_yp.c,v 1.6 2001/03/15 08:33:03 dugsong Exp $
*/
#include "config.h"
#include <sys/types.h>
#include <sys/param.h>
#include <rpc/rpc.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/yppasswd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "rpc.h"
#include "decode.h"
/* XXX - <rpcsvc/yppasswd.x> varies on different systems :-( */
struct my_passwd {
char *pw_name;
char *pw_passwd;
int pw_uid;
int pw_gid;
char *pw_gecos;
char *pw_dir;
char *pw_shell;
};
struct my_yppasswd {
char *oldpass;
struct my_passwd newpw;
};
static bool_t
xdr_my_passwd(XDR *xdrs, struct my_passwd *objp)
{
if (xdr_string(xdrs, &objp->pw_name, ~0) &&
xdr_string(xdrs, &objp->pw_passwd, ~0) &&
xdr_int(xdrs, &objp->pw_uid) &&
xdr_int(xdrs, &objp->pw_gid) &&
xdr_string(xdrs, &objp->pw_gecos, ~0) &&
xdr_string(xdrs, &objp->pw_dir, ~0) &&
xdr_string(xdrs, &objp->pw_shell, ~0))
return (TRUE);
return (FALSE);
}
static bool_t
xdr_my_yppasswd(XDR *xdrs, struct my_yppasswd *objp)
{
if (xdr_string(xdrs, &objp->oldpass, ~0) &&
xdr_my_passwd(xdrs, &objp->newpw))
return (TRUE);
return (FALSE);
}
int
decode_yppasswd(u_char *buf, int len, u_char *obuf, int olen)
{
struct rpc_msg msg;
struct my_yppasswd yp;
XDR xdrs;
int hdrlen;
if ((hdrlen = rpc_decode(buf, len, &msg)) == 0)
return (0);
obuf[0] = '\0';
if (msg.rm_direction == CALL &&
msg.rm_call.cb_prog == YPPASSWDPROG &&
msg.rm_call.cb_proc == YPPASSWDPROC_UPDATE) {
xdrmem_create(&xdrs, buf + hdrlen, len - hdrlen, XDR_DECODE);
memset(&yp, 0, sizeof(yp));
if (xdr_my_yppasswd(&xdrs, &yp)) {
snprintf(obuf, olen,
"%s\n%s:%s:%d:%d:%s:%s:%s\n",
yp.oldpass, yp.newpw.pw_name,
yp.newpw.pw_passwd, yp.newpw.pw_uid,
yp.newpw.pw_gid, yp.newpw.pw_gecos,
yp.newpw.pw_dir, yp.newpw.pw_shell);
}
xdr_destroy(&xdrs);
}
return (strlen(obuf));
}
int
decode_ypserv(u_char *buf, int len, u_char *obuf, int olen)
{
struct rpc_msg msg;
struct xid_map *xm;
char *domain;
bool_t status;
XDR xdrs;
int hdrlen;
if ((hdrlen = rpc_decode(buf, len, &msg)) == 0)
return (0);
obuf[0] = '\0';
if (msg.rm_direction == CALL &&
msg.rm_call.cb_prog == YPPROG &&
msg.rm_call.cb_proc == YPPROC_DOMAIN) {
xdrmem_create(&xdrs, buf + hdrlen, len - hdrlen, XDR_DECODE);
domain = NULL;
if (xdr_string(&xdrs, &domain, YPMAXDOMAIN)) {
if ((domain = strdup(domain)) != NULL)
xid_map_enter(msg.rm_xid, YPPROG, YPVERS,
YPPROC_DOMAIN, (void *) domain);
}
xdr_destroy(&xdrs);
}
else if (msg.rm_direction == REPLY &&
(xm = xid_map_find(msg.rm_xid)) != NULL) {
if (msg.rm_reply.rp_stat == MSG_ACCEPTED &&
msg.acpted_rply.ar_stat == SUCCESS) {
xdrmem_create(&xdrs, buf + hdrlen, len - hdrlen,
XDR_DECODE);
if (xdr_bool(&xdrs, &status)) {
if (status == TRUE)
snprintf(obuf, olen, "%s\n",
(char *)xm->data);
}
xdr_destroy(&xdrs);
}
free(xm->data);
memset(xm, 0, sizeof(*xm));
}
return (strlen(obuf));
}
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